CN117723199B

CN117723199B - Air blowing path detection device and material sorting system

Info

Publication number: CN117723199B
Application number: CN202311638851.4A
Authority: CN
Inventors: 孙尚民; 周合军; 张植俊; 韩文学; 沈光辉; 杨小勇; 卞振华; 张俊斌; 徐晓莹; 刘磊
Original assignee: Nuctech Co Ltd
Current assignee: Nuctech Co Ltd
Priority date: 2023-12-01
Filing date: 2023-12-01
Publication date: 2024-06-04
Anticipated expiration: 2043-12-01
Also published as: CN117723199A

Abstract

The application discloses an air blowing path detection device and a material sorting system. The air-blowing path detection device is used for detecting the working condition of an air-blowing path and comprises a pressure detection module, a transmission assembly and a driving module; the driving module is connected with the transmission assembly, and the transmission assembly is connected with the pressure detection module; the driving module is used for driving the transmission assembly to drive the pressure detection module to move relative to the nozzle so that the pressure detection module and the nozzle are in an aligned state; the pressure detection module is used for collecting gas pressure data at the nozzle after the pressure detection module is aligned with the nozzle, and the gas pressure data are used for determining the working condition of the gas spraying and blowing path. By utilizing the external pressure detection module, the working condition detection of the blowing gas circuit under any working state is realized under the condition that the blowing gas circuit is not required to be assembled and disassembled by invasion, the working condition detection efficiency of the blowing gas circuit is improved, and then the sorting efficiency of materials is improved.

Description

Air blowing path detection device and material sorting system

Technical Field

The present disclosure relates generally to the field of material sorting, and more particularly to an air blast path detection device and a material sorting system.

Background

At present, an intelligent material sorting machine adopts a blowing assembly formed by a plurality of blowing air paths which are arrayed to sort materials, and is generally used in industrial production environments such as mines, milling plants, processing workshops and the like where a large amount of dust sources exist. Wherein the nozzles on each of the air-blowing paths are exposed to air to perform the air-blowing action. In the material sorting process, because the air fluidity of the environment where the sorting machine is located is poor, dust is retained to cause the dust concentration in the air to be too high, and even if dust removing equipment is arranged, the dust from bottom to top can still enter the blowing air channel through the nozzle of the blowing air channel. Therefore, dust is easily accumulated at the corners of the blowing gas circuit to cause blockage faults, so that the efficiency and the accuracy of material sorting are reduced.

In order to ensure the efficiency and accuracy of material sorting, the working condition of the blowing gas channel can be judged in advance by utilizing manual detection or intrusion detection in the state that the blowing gas channel is in a stop state in the prior art, so that the blocking condition of the blowing gas channel can be treated in time. It is understood that "shutdown" of the blowing gas circuit refers to a condition in which the material sorting system is shut down and not in operation.

However, as the detection mode is carried out in the state of stopping the blowing path, the preparation time for sorting materials is prolonged; the efficiency and the accuracy of the manual detection mode are low, the complexity of the invasive disassembly detection mode is high, and the working condition detection efficiency of the air blowing path is low; therefore, the sorting of the materials still has the problem of low efficiency and accuracy.

Disclosure of Invention

In view of the foregoing drawbacks or shortcomings in the prior art, it is desirable to provide an air-jet flow path detection apparatus for improving the condition detection efficiency of an air-jet flow path; it is also desirable to provide a material sorting system including the above-described air-jet flow path detecting device, which has the effect of improving the efficiency and accuracy of material sorting.

In a first aspect of the present application, there is provided an air-jet flow path detection device including a pressure detection module, a transmission assembly, and a drive module; the driving module is connected with the transmission assembly, and the transmission assembly is connected with the pressure detection module;

the driving module is used for driving the transmission assembly to drive the pressure detection module to move relative to the nozzle so that the pressure detection module and the nozzle are in an aligned state;

The pressure detection module is used for collecting gas pressure data at the nozzle after the pressure detection module is aligned with the nozzle, and the gas pressure data are used for determining the working condition of the gas spraying and blowing path.

In a second aspect of the present application, there is provided a material sorting system comprising the blowing path detection apparatus of the first aspect and a blowing assembly; the blowing assembly comprises a plurality of blowing air paths which are arranged in an array manner; the blowing assembly is disposed in alignment with the blowing path detection device.

In a third aspect of the present application, there is provided a control method applied to the blow-out path detecting device in the first aspect, the method comprising:

The driving module is controlled to drive the transmission assembly to move so that the transmission assembly drives the pressure detection module to be in an aligned state with the nozzle;

After the pressure detection module is in an aligned state with the nozzle, controlling the pressure detection module to acquire gas pressure data at the nozzle;

and determining the working condition of the blowing gas circuit according to the numerical comparison result of the error between the actual response time and the calibration response time of the gas pressure data and the preset threshold value.

The air-blowing path detection device and the material sorting system provided by the embodiment of the application can collect the gas pressure data at the nozzle of the air-blowing path by using the pressure detection module under the condition that the material sorting system works and then the air-blowing path penetrates through the gas, and judge the working condition of the air-blowing path according to the gas pressure data. Compared with the one-by-one manual detection in the state of stopping the air blowing path in the prior art, the application utilizes the external pressure detection module to realize the working condition detection of the air blowing path in any working state under the condition of no need of stopping or invading the air blowing path for disassembly and assembly, thereby improving the working condition detection efficiency of the air blowing path; in addition, the dust accumulation condition of the blowing gas circuit can be treated in time according to the working condition detection result, so that the material sorting efficiency and accuracy are improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:

FIG. 1 is an application scenario applicable to an embodiment of the present application;

FIG. 2 is a schematic diagram of an air-jet flow path detecting device according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a transmission assembly 202 according to an embodiment of the present application;

fig. 4 is a schematic diagram of a pressure detection module 201 according to an embodiment of the present application;

FIG. 5 is a schematic diagram illustrating the operation of an air-jet flow path detecting device according to an embodiment of the present application;

FIG. 6 is a schematic cross-sectional view of a blowing gas circuit according to an embodiment of the present application;

FIG. 7 is a schematic diagram of another pressure detection module 201 according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a driving cylinder 402 according to an embodiment of the present application;

Fig. 9 is a schematic diagram of a driving module 203 according to an embodiment of the application;

FIG. 10 is a flowchart illustrating the operation of a processing module 1001 according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a material sorting system according to an embodiment of the present application;

FIG. 12 is a schematic control diagram of a material sorting system according to an embodiment of the present application;

FIG. 13 is a schematic diagram of a calibration response curve of a blowing gas circuit according to an embodiment of the present application;

FIG. 14 is a flow chart of a control method of an air-jet flow path detecting device according to an embodiment of the present application;

FIG. 15 is a flow chart of a control method of another air-jet flow path detecting device according to an embodiment of the present application;

In the above figures:

10-air source equipment; 20-blowing assembly; 30-material sorting area; 40-spraying air paths; 50-electromagnetic valve; 60-nozzles; 201-a pressure detection module; 202-a transmission assembly; 203-a drive module; 301-a slider; 302-track; 401-a pressure sensor; 402-driving a cylinder; 403 a load bearing assembly; 404-measuring component; 701-a sliding assembly; 801-an energy storage assembly; 802-pushing assembly; 901-driving a motor; 1101-blowing gas detection means.

Detailed Description

The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

Fig. 1 is an application scenario to which the embodiment of the present application is applicable. Referring to fig. 1, the application scenario includes an air supply apparatus 10, a blowing assembly 20, and a material separation zone 30. The gas source apparatus 10 is configured to deliver gas to the injection assembly 20, and the injection assembly 20 is configured to inject material into the material separation zone 30 using the gas. The blowing assembly 20 may include a plurality of nozzles 60 arranged in a predetermined arrangement; for example, the plurality of nozzles 60 may be arranged in a single row, a double row, or multiple rows. Typically, each nozzle 60 is connected to a respective one of the blowing gas circuits 40 for gas communication. In addition, the blowing assembly 20 further includes a solenoid valve 50 connected to each blowing gas path 40, and the solenoid valve 50 is used to control whether gas enters the blowing gas path 40 and the timing of entering the blowing gas path 40.

In particular, when the solenoid valve 50 is in an open state, the gas provided by the gas source apparatus 10 may enter the injection gas path 40 from the end of the solenoid valve 50 in the injection assembly 20. The gas entering the blowing gas path 40 is sprayed out by the nozzles 60 to blow the materials to the corresponding material sorting areas 30, thereby completing the sorting process of the materials. Wherein the nozzle 60 is exposed to air to perform the blowing action.

Currently, sorting of materials is performed using intelligent material sorters that include the blowing assembly 20 described above. In the actual sorting process of materials (such as ores), since the nozzle 60 of the blowing assembly 20 is exposed to the air for a long time, dust, material scraps and the like in the air easily enter the blowing air path 40 through the nozzle 60 under the condition that the blowing air path 40 is not penetrated by the air, so that blockage faults easily occur in the blowing air path 40, particularly at the corners of the air path, the sorting efficiency of the materials is reduced, and meanwhile, the air pressure at the nozzle 60 is also influenced by dust accumulation, so that the sorting accuracy is reduced.

In the prior art, in order to ensure the efficiency and accuracy of material sorting, the specific working conditions of the blowing gas circuit are usually determined by a manual detection mode in a stop state, and then the working conditions are treated correspondingly; for example, the blowing force of the blowing gas circuit with slight blockage faults can be increased, or the blowing gas circuit with serious blockage faults can be maintained and replaced in time.

Specifically, when the air blowing paths are in a stop state, the air blowing paths are in a gas through state in sequence, the air flow conditions of the air blowing paths are confirmed one by one, and the working conditions of the air blowing paths are judged based on the air flow conditions. In addition, the inspector can determine whether the interior of the air-blowing path is blocked by an intrusion detection method when the air-blowing path is in a stop state, for example, disassemble the constituent parts of the air-blowing assembly one by one, and manually confirm the blocking condition of each air-blowing path.

However, the efficiency and accuracy of the manual detection are low one by one, and the complexity of the intrusion detection is high, so that the working condition detection efficiency of the air blowing path is low; and the manual detection and the intrusion detection are carried out in the stop state of the blowing gas circuit, so that the normal material sorting work is seriously influenced. Therefore, the material sorting still has the problem of low efficiency.

Based on the specific working condition of the air blowing path can be determined by the pressure detection module under any working condition of the air blowing path, so that the working condition detection efficiency and accuracy of the air blowing path are improved, and the sorting efficiency and sorting accuracy of materials are improved.

Fig. 2 is a schematic diagram of an air-blowing path detection device according to an embodiment of the present application, where the air-blowing path detection device may detect the working condition of the air-blowing path 40. As shown in fig. 2, the air-jet flow path detecting device includes a pressure detecting module 201, a transmission assembly 202, and a driving module 203; the drive module 203 is connected with the transmission assembly 202, and the transmission assembly 202 is connected with the pressure detection module 201.

Specifically, the driving module 203 is configured to drive the transmission assembly 202 to drive the pressure detection module 201 to move relative to the nozzle, so that the pressure detection module 201 is aligned with the nozzle; the pressure detection module 201 is configured to collect gas pressure data at the nozzle after the pressure detection module 201 is aligned with the nozzle, where the gas pressure data is used to determine a working condition of the blowing path.

Compared with the shutdown detection of the blowing gas circuit in the prior art, the embodiment of the application can utilize the pressure detection module 201 to collect the gas pressure at the nozzle of the blowing gas circuit under any working state of the blowing gas circuit and determine the specific working condition of the blowing gas circuit in real time according to the gas pressure data, thereby improving the working condition detection efficiency of the blowing gas circuit on the basis of no shutdown.

In one possible implementation, the pressure detection module 201 may include a pressure sensor, a drive cylinder that drives the movement of the pressure sensor, and a carrier assembly that carries the pressure sensor.

The pressure sensor is, for example, formed by a pressure-sensitive element and a signal processing unit. Specifically, the pressure sensor may acquire a pressure signal using a pressure sensitive element, and convert the acquired pressure signal into an electrical signal using a signal processing unit.

It should be noted that, as a device widely used in industrial practice, the pressure sensor may be classified according to pressure test types in different application scenarios, for example, a gauge pressure sensor, a differential pressure sensor, an absolute pressure sensor, and the like.

The drive cylinder may be, for example, a cylindrical metal member that guides the piston in a linear reciprocating motion within the cylinder. Specifically, the linear reciprocating motion of the piston inside the cylinder may compress the gas inside the cylinder, thereby converting the pressure energy of the compressed gas into mechanical energy.

The cylinder is composed of a cylinder barrel, an end cover, a piston rod, a sealing member and the like, and the types of the cylinder can comprise two types of reciprocating linear motion and reciprocating swing, such as a single-acting cylinder, a double-acting cylinder, a diaphragm type cylinder, an impact cylinder, a rodless cylinder and the like.

Illustratively, the carrier assembly may be a mounting plate for mounting the pressure sensor and the drive cylinder, which may be fixedly coupled to the transmission assembly 202.

For example, when the pressure sensors on the carrier assembly are in one-to-one correspondence with the nozzles, it may be determined that the pressure detection module is in alignment with the nozzles.

In one possible implementation, fig. 3 is a schematic diagram of a transmission assembly 202 provided by an embodiment of the present application. As shown in fig. 3, the drive assembly 202 may be a linear guide rail including a slider 301 and a track 302 for sliding the slider. The bearing assembly of the pressure detection module 201 may be fixedly connected with the slider 301, so that the linear guide rail may drive the pressure detection module 201 to perform a linear motion.

By way of example, the drive assembly 202 may also employ a screw, such as a sliding screw, a ball screw, a hydrostatic screw, or the like. The screw rod is a transmission auxiliary part for changing rotary motion into linear motion, and generally mainly comprises a screw rod shaft and a nut, and the nut can be driven to do linear motion through the self rotary motion of the screw rod shaft. The bearing assembly of the pressure detection module 201 can be fixedly connected with the nut, so that the screw rod can drive the pressure detection module 201 to do linear motion.

Illustratively, the driving module 203 may adjust the position of the pressure detecting module 201 in real time by controlling the moving distance of the slider 301 or the number of rotations of the screw shaft, so that the pressure detecting module 201 can move relative to the nozzle and be aligned with the nozzle.

In one possible implementation, the operating states and the operating sequences of the various modules and components may be controlled remotely by a controller. The controller can be remotely controlled through logic control instructions or programming instructions.

Illustratively, the drive module 203 may be controlled by an algorithmic programming controller (PAC) to drive the drive assembly 202 to move the drive assembly 202 relative to the nozzles of the blowing gas path, thereby aligning the positions of the pressure detection modules 201 disposed on the drive assembly 202 with the positions of the nozzles, e.g., with each pressure sensor of the pressure detection modules 201 being in one-to-one correspondence with each nozzle. When the position of the pressure detection module 201 is aligned with the position of the nozzle, the pressure detection module 201 is continuously controlled by an algorithm programming controller (PAC) to perform measurement acquisition on the gas pressure data at the nozzle.

For example, the pressure detection module 201 may be provided with an optical sensor, a visual recognition system, an encoder, a position sensor, or the like for determining the position of the object to determine the alignment state of the pressure detection module 201 with the nozzle.

For example, when the pressure detection module 201 stops moving, an algorithm programming controller (PAC) controls an optical sensor of the pressure detection module 201 to detect whether a nozzle exists in front of the pressure sensor. When it is detected that nozzles are present in front of the pressure sensor, an algorithmic programming controller (PAC) may be fed back that the pressure detection module 201 is in alignment with the nozzles. Otherwise, the pressure detection module 201 continues to move a set distance and then stops, and the same detection is repeated until the algorithm programming controller (PAC) receives feedback that the pressure detection module 201 is aligned with the nozzle. Wherein the optical sensor may be a photoelectric switch, an infrared sensor, etc.

Optionally, when the pressure detection module 201 moves, an algorithm programming controller (PAC) controls the visual recognition system of the pressure detection module 201 to perform real-time monitoring and image processing on the front object; specifically, a computer vision algorithm is utilized to identify whether the front object is a nozzle; when it is recognized that nozzles are located in front of the pressure sensors, an algorithm programming controller (PAC) may be fed back that the pressure detection module 201 is aligned with the nozzles, and further control the driving module 203 to stop driving. The visual recognition system may include, among other things, a camera or other visual sensor.

Alternatively, when the pressure detection module 201 stops moving, an algorithm programming controller (PAC) controls an encoder or a position sensor of the pressure detection module 201 to measure position information of the front object to determine whether the pressure sensor reaches a predetermined position aligned with each nozzle. When the encoder or position sensor detects that the pressure sensors have each reached a predetermined position, an algorithmic programming controller (PAC) may be fed back that the pressure detection module 201 is in alignment with the nozzle.

For example, after successfully acquiring the gas pressure data at the nozzle, the algorithm workstation may determine a failure condition of the blowing gas path based on the gas pressure data.

It should be noted that the above-mentioned programming instruction and logic control instruction may be pre-stored in the controller to be automatically executed, or may be sent by the controller in real time. For example, when the control command is a pre-stored command, the motor rotation speed and the number of turns of the driving motor in the driving module 203 for driving the motion of the transmission assembly 202 may be pre-stored in the algorithm programming controller (PAC) according to the installation characteristics of the blowing gas path, so as to implement the predetermined speed and/or the predetermined distance of the linear motion of the pressure detection module 201.

The air-blowing path detection device provided by the embodiment of the application can collect the gas pressure data at the nozzle of the air-blowing path by using the pressure detection module under the condition that the air-blowing path is not stopped, and judge the working condition of the air-blowing path according to the gas pressure data. Compared with the manual detection one by one and the invasive disassembly and assembly of the blowing air paths in the state of stopping the blowing air paths in the prior art, the application utilizes the external pressure detection module to realize the working condition detection of the blowing air paths in any working state under the condition of no need of stopping or invasive disassembly and assembly of the blowing air paths, thereby improving the working condition detection efficiency of the blowing air paths; in addition, the dust accumulation condition of the blowing gas circuit can be treated in time according to the working condition detection result, so that the material sorting efficiency and accuracy are improved.

In another embodiment of the present application, a specific configuration of the pressure detection module 201 is also provided. Fig. 4 is a schematic diagram of a pressure detection module 201 according to an embodiment of the present application. As shown in fig. 4, the pressure detection module 201 includes one or more pressure sensors 401, a drive cylinder 402, and a carrier assembly 403; wherein the pressure sensor 401 and the driving cylinder 402 are arranged on the bearing assembly 403; one end of each pressure sensor 401 near the nozzle is provided with a measurement assembly 404. Specifically, the driving cylinder 402 is used to drive the measurement assembly 404 of the pressure sensor 401 to move to a predetermined position of the nozzle, so that the measurement assembly 404 collects gas pressure data at the nozzle.

In the embodiment of the application, the measuring component 404 on each pressure sensor 401 in the pressure detection module 201 is moved to a preset position near the nozzle, so that the acquisition of gas pressure data at the nozzle is completed; the predetermined position of the nozzle may be the inside of the nozzle or any position where the blowing air flow can be detected, for example, a position 1 to 3cm from the front of the nozzle. Compared with the condition that the air blowing paths are detected manually one by one, the detection efficiency of the air blowing path condition can be improved by utilizing the measurement component 404 to collect data.

By way of example, the measurement assembly 404 may be a measurement head that can be placed within a nozzle or in a blowing gas circuit. It is thus possible to determine whether the pressure detection module 201 is in alignment with the nozzle by measuring the degree of alignment of the head with the nozzle position.

In one possible implementation, the measurement assembly 404 may be placed inside the nozzle for measurement while the blowing path is in a shut-down or non-blowing state. Fig. 5 is a schematic working diagram of an air-jet flow path detection device according to an embodiment of the present application. As shown in fig. 5, after the driving module 203 drives the transmission assembly 202 to drive the pressure detection module 201 to align with the nozzle, the driving cylinder 402 in the pressure detection module 201 drives the measuring assembly 404 to insert into the nozzle.

It should be noted that, when a plurality of rows of nozzles as shown in fig. 5 are disposed in the actual material sorting process, the inclination angle of the transmission assembly 202 may be changed by the driving module 203 to change the corresponding angle between the measuring assembly 404 and the nozzles, and then the measuring assembly 404 may be moved in a direction perpendicular to the paper surface of fig. 4 by driving the cylinder 402, so that the measuring assembly 404 may collect gas pressure data for the nozzles in different rows at the same position of the transmission assembly 202.

For example, the transmission assembly 202 may be fixed to the blowing assembly using a universal joint, and the inclination angle of the transmission assembly 202 may be changed using a motor or a servo driver installed inside the driving module 203 so that the measuring assemblies 404 are in one-to-one correspondence with the nozzles. It should be noted that the specific tilt angle of the transmission assembly 202 may be controlled by an algorithmic programming controller (PAC).

Illustratively, when the measurement assembly 404 is to be placed inside a nozzle, the measurement assembly 404 has a smaller diameter dimension than at the nozzle. In addition, in the case where the measurement module 404 needs to be placed inside the nozzle, in order to reduce the influence of air leakage at the nozzle on the measurement result, a high degree of adhesion and no gap are required between the measurement module 404 and the nozzle.

For example, as shown in fig. 6, the length of the nozzle is defined as the position from the upper corner to the opening, so that on the basis that the diameter of the measuring component 404 is smaller than the diameter of the nozzle, the length of the measuring component 404 is smaller than the length from the upper corner to the opening, so as to ensure that the measuring component 404 and the nozzle can be highly adhered.

In one possible implementation, the measurement assembly 404 may be positioned at any location where the flow of blowing gas is detected when the blowing gas path is in a state of blowing gas. For example, the measurement assembly 404 may be positioned perpendicular to the flow of the blowing gas to avoid interfering with the proper operation of the blowing gas circuit.

Illustratively, the tilt angle of the transmission assembly 202 may be adjusted by the drive module 203 to change the specific position of the measurement assembly 404; the measuring assembly 404 may also be driven back and forth by driving the cylinder 402 to change the specific position of the measuring assembly 404.

It should be noted that, the setting position of the measurement assembly 404 may be adjusted accordingly according to the real-time working state of the air-blowing path.

Fig. 6 is a schematic cross-sectional view of a blowing air path 40 according to an embodiment of the present application. As shown in fig. 6, when the blowing gas path is in a stopped or non-blown gas state, the measurement assembly 404 of the pressure sensor 401 is inserted into the nozzle 60. At this time, the electromagnetic valve 50 on the air blowing path is opened, air enters the air blowing path from the end of the electromagnetic valve and is transmitted to the nozzle, and the measurement assembly 404 correspondingly completes the acquisition of air pressure data at the nozzle along with the air entering the air blowing path. When the blowing air path is in a state of blowing air, the measurement component 404 of the pressure sensor 401 can move to a preset position capable of detecting the blowing air flow on the premise of not influencing normal blowing work, and the air is blown out of the nozzle to complete acquisition of air pressure data at the nozzle.

It should be noted that, when the pressure detection module 201 is adjusted to be aligned with the nozzles, the nozzles may be grouped according to a preset number, the pressure detection module 201 may flexibly set the number of the pressure sensors 401 according to the preset number, and the interval between the pressure sensors 401 may be set correspondingly according to the caliber of the nozzles, so as to adapt to the nozzles with different specifications.

For example, all the nozzles from the left end to the right end in fig. 5 may be grouped in groups of five nozzles, and accordingly, five pressure sensors 401 are provided in the pressure detection module 201, and the pitch between the pressure sensors 401 (specifically, the measurement assembly 404) is the same as the pitch between the nozzles. Thus, the driving module 203 may drive the pressure detection module 201 to sequentially align with each set of nozzles at a fixed distance between each set.

Alternatively, the number of the pressure sensors 401 in the pressure detection module 201 may be set to 1, so that the operation condition detection is performed on the air-blowing paths one by one using the one pressure sensor 401.

Illustratively, after the collection of gas pressure data is completed, the measurement assembly 404 of the pressure sensor 401 is restored to the original state, and the driving module 203 may drive the pressure detection module 201 to align with the next set of nozzles until the data collection of all the nozzles is completed.

In a possible implementation manner, the driving cylinder 402 may drive all the measurement components 404 of the pressure sensor 401 to perform data collection, and may also drive part of the measurement components 404 of the pressure sensor 401 to perform data collection.

For example, when all nozzles are grouped according to a preset number and blowing gas paths with normal working conditions exist in each group, the driving cylinder 402 may be correspondingly set to drive only part of the measuring components 404 of the pressure sensor 401 for data acquisition.

For example, when the 1 st, 3 rd and 5 th nozzles in the first group are known to be in normal working conditions, the driving cylinder 402 may be set to drive the 2 nd measuring component 404 and the 4 th measuring component 404 to measure when data acquisition is performed on the nozzles in the group; and when the working condition of the 2 nd nozzle in the fourth group is known to be normal, the driving cylinder 402 can be set to drive the measuring components except the 2 nd measuring component 404 to measure when the data acquisition is performed on the group of nozzles.

In another embodiment of the present application, another specific configuration of the pressure detection module 201 is also provided. Fig. 7 is a schematic diagram of another pressure detection module 201 according to an embodiment of the present application. As shown in fig. 7, the pressure detection module 201 further includes a sliding assembly 701, and a driving cylinder 402 is disposed on the sliding assembly 701 to move along a main axis direction of the sliding assembly 701, the main axis direction being parallel to an arrangement direction of the one or more pressure sensors 401.

Compared with the fixed arrangement mode of the driving cylinder 402, the sliding assembly 701 in the embodiment of the application improves the flexibility of the driving cylinder 402, thereby expanding the adaptability of the pressure sensor 401 to the measurement operation.

In a possible implementation, the driving cylinder 402 is disposed on the sliding assembly 701, so that the driving cylinder 402 performs driving operation of the pressure sensor 401 by moving a position on the sliding assembly 701. Wherein the sliding assembly 701 may be a sliding rail.

For example, the installation direction of the sliding assembly 701 may be parallel to the arrangement direction of the pressure sensors 401 in the pressure detection module 201, i.e., the installation direction of the sliding assembly 701 is the same as the main axis direction. For example, when the arrangement direction of the pressure sensors 401 is from left to right, the installation direction of the slider assembly 701 is also from left to right. Accordingly, the moving direction of the driving cylinder 402 provided at the sliding assembly 701 is also from left to right, thereby ensuring that the driving cylinder 402 can be provided corresponding to the pressure sensor 401 in any case.

Illustratively, the length of the sliding assembly 701 may be the same as the length of the entire pressure sensor arrangement 401 within the pressure detection module 201, or may be the same as the length of a partially consecutive pressure sensor arrangement 401 within the pressure detection module 201.

In another embodiment of the present application, a specific configuration of the driving cylinder in the pressure detection module is also provided. Fig. 8 is a schematic diagram of a driving cylinder 402 according to an embodiment of the present application. As shown in fig. 8, the drive cylinder 402 includes an accumulator assembly 801 and one or more pushing assemblies 802, the pushing assemblies 802 being disposed opposite the end of the pressure sensor 401 remote from the measurement assembly 404.

In the embodiment of the application, the specific working condition of the blowing gas circuit can be detected in a targeted manner by utilizing the flexible driving arrangement of the driving cylinder 402, so that the loss of the measuring component 404 is effectively avoided, and the retest efficiency of the working condition of the blowing gas circuit is improved.

In one possible implementation, the energy storage assembly 801 may be a metal piston cylinder and the push assembly 802 may be a push rod. The metal piston cylinder is used for playing an energy storage role, and particularly can convert pressure energy into mechanical energy through piston movement in the metal cylinder; the pushing rod is used for exerting a pushing action, in particular by pushing the measuring assembly 404 of the pressure sensor 401 by means of the mechanical energy converted in the cylinder.

By way of example, the number of pushing assemblies 802 driving the front end of the cylinder 402 may be set according to the number of the pressure sensors 401. For example, the number of pushing assemblies 802 may be set to be the same as the number of pressure sensors 401, so that when the energy storage components 801 of the drive cylinder 402 are functioning, the pushing assemblies 802 may push all of the measurement assemblies 404 to move at once.

The number of pushing assemblies 802 is set to be the same as the number of pressure sensors 401, and the above-described arrangement is applicable to both the driving cylinders 402 fixed to the pressure detection module 201 and the driving cylinders 402 provided to the slide assembly 701. When this same number of settings are applied to the drive cylinders 402 on the slide assembly 701, the positions of the push assemblies 802 need to be adjusted to one-to-one correspondence with the pressure sensors 401 to prevent a missing situation from occurring.

For example, the pushing assembly 802 may be selectively disposed at the front end of the driving cylinder 402 according to the known working conditions of the blowing air path and the arrangement of the pressure sensors 401. For example, when gas pressure data acquisition is required for the first and last nozzles in the above-described different nozzle groups, a push member 802 may be provided at a position of the front end of the driving cylinder 402 corresponding to the first and last pressure sensors 401.

It should be noted that the above-described arrangement of the selectively provided pushing assembly 802 is also applicable to the driving cylinder 402 fixed to the pressure detecting module 401.

For example, when the driving cylinder 402 is the driving cylinder 402 on the sliding assembly 701, the position of the pushing assembly 802 may be adjusted to correspond to the position of the pressure sensor 401 by using the sliding assembly 701, and thus any number of pushing assemblies 802 may be provided at any position of the front end of the driving cylinder 402.

In another embodiment of the present application, a specific configuration of the driving module 203 is also provided. Fig. 9 is a schematic diagram of a driving module 203 according to an embodiment of the present application. As shown in fig. 9, the driving module 203 includes a driving motor 901. Specifically, the driving motor 901 is configured to drive the transmission assembly 202 to move the carrier assembly 403 along the first direction, so as to adjust the position of the pressure detection module 201.

In the embodiment of the present application, the driving motor 901 drives the transmission assembly 202 to operate, so that the sliding block 301 or the bearing assembly 403 connected to the nut can move along the track 302, so that the position of the pressure detection module 201 can be adjusted in real time, so that the measuring assemblies 404 of the pressure sensors 401 are in one-to-one correspondence with the nozzles. With the mobility of the carrier assembly 403, the flexibility of the pressure detection module 201 in moving is improved.

In one possible implementation, the drive motor 901 may be a lead screw drive motor.

Illustratively, a screw drive motor is used to drive the screw in linear motion. The driving motor is a motor capable of converting electric energy into mechanical energy, and can drive mechanical equipment to move by controlling the rotation speed, the steering, the torque and the like of the motor.

Illustratively, the lead screw drive motor in the drive module 203 may be mounted to one or both ends of the lead screw shaft in the drive assembly 202.

In a possible implementation, a screw drive motor in the drive module 203 is used to drive the screw shaft in the drive assembly 202 to rotate so that the nut moves in a first direction to a position corresponding to the position of the nozzle so that the pressure detection module 201 secured to the nut can be aligned with the nozzle. Wherein the first direction may be an arrangement direction of the nozzles. In some embodiments, the first direction may be the same as the main axis direction.

The position of the pressure detection module 201 is adjusted to be aligned with the nozzle position so that the pressure detection module 201 can collect effective gas pressure data at the nozzle.

In another embodiment of the present application, a processing manner of the processing module in the air-jet flow path detecting device is also provided. The blow-by gas detection device further comprises a processing module 1001, wherein the processing module 1001 is connected to the pressure detection module 201, the transmission assembly 202 and the drive module 203. Specifically, fig. 10 is a flowchart illustrating an operation of the processing module 1001 according to an embodiment of the present application. As shown in fig. 10, the processing module 1001 is configured to send a first control instruction to the driving module 203, instruct the driving module 203 to adjust the position of the pressure detection module 201, so that the pressure detection module 201 is aligned with the nozzle; after the pressure detection module 201 and the nozzle are in an aligned state, a second control instruction is sent to the pressure detection module 201, and the pressure detection module 201 is instructed to collect gas pressure data at the nozzle; and the device is also used for determining the working condition of the blowing gas circuit according to the gas pressure data.

In the embodiment of the application, the processing module 1001 is used to send an instruction to each module, so that each module is mutually matched to complete the detection of the working condition of the blowing gas circuit.

In one possible implementation, the processing module 1001 may include the algorithm programming controller (PAC), logic controller (PLC), and algorithm workstation described above.

Illustratively, an algorithm programming controller (PAC) sends a first control command to the drive module 203. The driving module 203 responds to the first control instruction to start the driving motor 901 to drive the sliding block 301 to move along the track 302 or drive the screw shaft to rotate so as to drive the nut to move, so that the position of the pressure detection module 201 arranged on the sliding block 301 or the nut is aligned with the position of the nozzle, and then the measuring component 404 of the pressure sensor 401 of the pressure detection module 201 is aligned with the nozzle.

Illustratively, the pressure detection module 201 may feedback its own location information to the processing module 1001; the position information is the position information of the pressure detection module 201 relative to the nozzle. For example, the pressure detection module 201 may feed back the position information to the processing module 1001 at a preset time period. For example, the position information may be implemented using an optical sensor, a visual recognition system, an encoder, a position sensor, or the like as described above.

Illustratively, when the position information fed back by the pressure detection module 201 is that the pressure sensor 401 is aligned with the nozzle, the algorithm programming controller (PAC) sends a second control command to the pressure detection module 201. The pressure detection module 201 responds to the second control instruction to open the driving cylinder 402, pushes the measurement component 404 of the pressure sensor 401 by the pushing component 802, enables the measurement component 404 to move to a preset position of the nozzle, and collects gas pressure data at the nozzle after the measurement component 404 of the pressure sensor 401 successfully moves to the preset position.

After the gas pressure data at the nozzle is successfully collected, the algorithm workstation judges the specific working condition of the corresponding blowing gas circuit according to the gas pressure data.

It should be noted that, when the blowing gas path 40 is in a stopped state or a state in which no gas is blown, the algorithm programming controller (PAC) may start the gas source apparatus 10 before sending the first control instruction to the driving module 203, and the gas source apparatus 10 transmits the gas to the blowing gas path 40 from the end of the blowing gas path 40 far from the nozzle, where the electromagnetic valve in the blowing gas path 40 is in a closed state. After the measurement assembly 404 is successfully inserted into the nozzle, the solenoid valve in the injection gas circuit 40 is turned to an open state, at which time gas enters the injection gas circuit 40, and the measurement assembly 404 begins to collect gas pressure data at the nozzle.

In another embodiment of the present application, a material sorting system including the above-described blowing gas path detection device is also provided. Illustratively, the material sorting system includes an injection flow path detection device and an injection assembly; the blowing assembly comprises a plurality of blowing air paths which are arranged in an array manner; the blowing assembly is disposed in alignment with the blowing path detection device.

According to the material sorting system comprising the air blowing path detection device, the specific working condition of the air blowing path can be judged by using the air blowing path detection device under any working state of the air blowing path, so that the working condition detection efficiency of the air blowing path is improved, and the material sorting efficiency and accuracy are improved.

In a possible implementation manner, fig. 11 is a schematic structural diagram of a material sorting system according to an embodiment of the present application, and as shown in fig. 11, the material sorting system includes an air blowing path detection device 1101 and an air blowing component 20. The blowing assembly 1102 includes a row of blowing air paths, each of which includes a nozzle 60 and a high-speed solenoid valve 50 for controlling the nozzle to perform a blowing operation.

Illustratively, the placement of the blowing assembly opposite the blowing path detection device is accomplished by bringing the pressure detection module 201 in the blowing path detection device into alignment with the nozzles in the blowing assembly. The air-blowing path detection device can be also called an air-blowing path blockage detection rapid calibration tool.

It should be noted that the material sorting system may be an intelligent sorting machine, and the number, specification and arrangement of the air blowing paths in the material sorting system may be determined according to the width and sorting particle size of the intelligent sorting machine. For example, when the intelligent classifier is large in width and small in classifying grain size, the number of blowing air paths in the material classifying system is correspondingly increased.

In one possible implementation, the material sorting system may utilize a sorting injection controller, a central control controller, and an algorithm control station to cooperate to complete the material sorting process. Wherein, the sorting blowing controller can be a Programmable Automation Controller (PAC); the central control controller can be a logic controller (PLC).

It should be noted that, the algorithm control station is set because the computational effort of the Programmable Automation Controller (PAC) is limited, and in order to ensure the accuracy of the result, the image acquisition, processing and recognition functions may be separated from the Programmable Automation Controller (PAC), so as to facilitate the expansion of the image recognition functions in the subsequent material sorting operation.

Fig. 12 is a schematic control diagram of a material sorting system according to an embodiment of the present application, as shown in fig. 12, in which an air blowing path is in an operating state during material sorting, and a logic controller (PLC) is mainly responsible for starting and shutting down the air source device 10; the Programmable Automatic Controller (PAC) is mainly responsible for executing blowing operation, controlling the state of the electromagnetic valve and collecting gas pressure data, and particularly can control the blowing gas path detection device to collect the gas pressure data at the nozzle under the condition that the blowing gas path penetrates through the gas; the algorithm control station is mainly responsible for processing and analyzing jetting logic and gas pressure data in the sorting process, and particularly can determine the working condition of a jetting gas path according to the gas pressure data. It should be noted that, the start and stop of the whole material sorting process can be controlled by a remote control station.

Specifically, when the remote control station turns on the material sorting system, the remote control station communicates with a central control logic controller (PLC) which in turn communicates with a Programmable Automation Controller (PAC). And the Programmable Automation Controller (PAC) completes the acquisition of the gas pressure data at the nozzle by the gas injection path detection device according to the injection logic provided by the algorithm control station, transmits the acquired data to the algorithm control station to complete data processing and diagnose the working condition of the gas injection path, and finally returns the diagnosis result to the remote control station.

By way of example, the blowing gas circuit with abnormal working conditions can be processed in time according to the working condition result received by the remote control station. For example, the blowing force of the blowing gas circuit with the slight blockage fault can be increased, or the blowing gas circuit with the serious blockage fault can be maintained and replaced in time.

In one possible implementation, the algorithm control station diagnoses the operating condition of the injection gas circuit according to the comparison of the actual response time of the gas pressure data and the calibrated response time. The calibration response time is the corresponding time when the gas pressure data at the nozzle changes under the condition that each gas blowing path is in a normal fault-free working condition.

The air-jet flow path detection device is installed on a normal fault-free air-jet assembly before the working condition of an actual air-jet flow path is detected, and the measuring assembly in the pressure detection module is used for collecting air pressure data at the air-jet flow path nozzle under the fault-free condition and transmitting the data to the algorithm control station. And the algorithm control station generates a calibration response curve of the blowing gas circuit according to the gas pressure data at different moments.

FIG. 13 is a schematic diagram of a calibration response curve of a blowing air path according to an embodiment of the present application, as shown in FIG. 13, T _o may be a time when an electromagnetic valve obtains an electrical signal to switch to an on state; t _do can be the time taken for the solenoid valve to get the electrical signal to switch to the on state until the gas pressure data at the nozzle rises to 5% of the rated pressure; t _mo may be the time taken for the gas pressure data at the nozzle to rise from 5% to 95% of the rated pressure; t _c can be the moment when the electromagnetic valve obtains the electric signal to switch to the closed state; t _dc can be the time taken for the solenoid valve to get the electrical signal to switch to the off state until the gas pressure data at the nozzle is reduced to 95% of the rated pressure; t _mc may be the time taken for the gas pressure data at the nozzle to drop from 95% of the rated pressure to 5% of the rated pressure.

It should be noted that, the calibration response curve corresponds to one calibration curve for each air-blowing path. For example, the time corresponding to the gas pressure data of 5% may be 5 seconds after the solenoid valve on the air injection path is opened.

Illustratively, after the calibration response curve is drawn, the fault detection of the air blowing path is performed on the air blowing components with the same specification and unknown working conditions. After the fault detection is completed, the collected gas pressure data are transmitted to an algorithm control station, and the algorithm control station generates an actual response curve of the blowing gas circuit.

Specifically, the working condition of the blowing gas path can be judged by the response time of the opening stage and the closing stage of the blowing action. The calibration response time of the blowing operation opening stage is defined as the sum of time T _do taken by the electromagnetic valve to obtain the electric signal to switch to the opening state until the gas pressure data at the nozzle rises to 5% of the rated pressure and time T _mo taken by the gas pressure data at the nozzle to rise from 5% of the rated pressure to 95% of the rated pressure; the nominal response time of the closing phase of the blowing action is defined as the sum of the time T _dc taken for the solenoid valve to get the electrical signal switched to the closed state until the gas pressure data at the nozzle drops to 95% of the nominal pressure and the time T _mc taken for the gas pressure data at the nozzle to drop from 95% of the nominal pressure to 5% of the nominal pressure.

In another embodiment of the present application, a specific installation position of the air-blown path detection device is also provided. Illustratively, the spray path sensing device is removably mounted to the spray assembly proximate the spray nozzle of the spray path.

In the embodiment of the application, the air blowing path detection device is detachably arranged on the air blowing component, so that the installation position of the detection device is more flexible, and the air blowing path with faults can be rapidly determined under the condition that the abnormal working condition of the air blowing component is obtained.

For example, when the rough position of the blowing component with the abnormal working condition is obtained, the blowing path detection device may be directly installed at the abnormal position of the blowing component, and the measurement component in the pressure detection module may be aligned with the nozzle at the abnormal position.

In another embodiment of the present application, there is also provided an installation method of the air-blowing path detecting device. The transmission assembly comprises a first combined part, the blowing assembly comprises a second combined part, and the first combined part and the second combined part are detachably connected.

For example, the first combination element may be disposed at the bottom of the transmission assembly; the second combined part can be arranged on the top of the blowing component; the connection and matching of the first combination part and the second combination part realize the detachability of the air-jet flow path detection device. The first combined part and the second combined part can be sliding rails.

For example, the first combination part arranged at the bottom of the transmission assembly may be a convex sliding rail, and the second combination part arranged at the top of the blowing assembly may be a concave sliding rail. The first and second combination parts are detachably connected by snapping the convex slide rail into the concave slide rail.

It should be noted that, the implementation manner of the above-mentioned combined component is not limited to a sliding rail, and any component that can be detachably connected and can smoothly move may be used as the combined component, and the present application is not particularly limited.

In another embodiment of the present application, fig. 14 is a flowchart of a control method of an air-jet flow detection device according to an embodiment of the present application. Referring to fig. 14, the control method may include the following steps.

In step S1401, the driving module 203 is controlled to drive the driving assembly 202 to move, so that the driving assembly 202 drives the pressure detecting module 201 to align with the nozzle.

In step S1402, after the pressure detection module 201 is aligned with the nozzle, the pressure detection module 201 is controlled to collect the gas pressure data at the nozzle.

Step S1403, determining the working condition of the blowing gas circuit according to the result of comparing the error between the actual response time and the calibration response time of the gas pressure data with the value of the preset threshold.

In one possible implementation manner, the working condition of the blowing gas circuit can be judged through the comparison of the actual response time and the calibration response time.

For example, when the error between the actual response time and the calibration response time is greater than a preset threshold, it may be directly determined that the working condition of the air-blowing path is abnormal.

It should be noted that, because the requirements for the blowing performance under different working conditions are different, the preset threshold value can be continuously adjusted. In particular, the preset threshold may be a difference between a nominal response time of the on-phase of the injection event and a nominal response time of the off-phase of the injection event.

For example, when the actual response time of the blowing action opening stage of a certain blowing air path is greater than the sum of the calibration time T _do and the calibration time T _mo but does not exceed the preset threshold value, judging that the blowing air path is in a normal condition; when the actual response time of the blowing action opening stage of a certain blowing air path is greater than the sum of the calibration time T _do and the calibration time T _mo and exceeds a preset threshold value, the blowing performance of the blowing air path is reduced, the blowing air path has a blocking fault, and the blowing air path needs to be maintained or replaced in time.

In another embodiment of the present application, fig. 15 is a flowchart of a control method of another air-jet flow detection device according to an embodiment of the present application. Referring to fig. 15, the control method may include the following steps.

In step S1501, the algorithm programming controller (PAC) controls the driving motor to drive the slider 301 to move along the track 302 or drive the screw shaft to rotate to drive the nut to move, so that the pressure detection module 201 is aligned with the nozzle.

For example, the pressure detection module 201 may be secured to the slider 301 or the nut by a carrier assembly 403.

In one possible implementation, the drive motor 901 may determine the start-stop status of the linear guide or lead screw based on the position of the nozzle. Illustratively, the drive motor 901 stops driving the linear rail when the pressure detection module 201 fixedly coupled to the slider 301 of the linear rail is in an aligned state with the nozzle.

In step S1502, when the pressure detection module 201 stops moving, an algorithm programming controller (PAC) controls the driving cylinder 402 to move the measurement assembly 404 in the pressure detection module 201 to a predetermined position of the nozzle in response to the pressure detection module 201 being aligned with the nozzle.

In one possible implementation, the measurement component 404 in the pressure detection module 201 corresponds to (aligns with) the nozzle when the pressure detection module 201 is in alignment with the nozzle.

For example, the measurement assembly 404 may be moved to a predetermined position of the nozzle by pushing the assembly 802 using the drive cylinder 402 to release energy.

In step S1503, when the measurement assembly 404 stops moving, an algorithm programmed controller (PAC) controls the measurement assembly 404 to collect gas pressure data at the nozzle in response to the measurement assembly 404 moving to a predetermined position of the nozzle.

In one possible implementation, the predetermined location of the nozzle may include a location within and near the nozzle.

For example, the measurement assembly 404 may be inserted inside the nozzle when the blowing gas circuit is in a shut-down or non-blowing gas state; at this time, the electromagnetic valve of the air blowing path can be opened to enable the air in the air blowing path to be communicated.

Alternatively, the measurement assembly 404 may be moved to any position where the flow of the spray gas can be detected while the spray gas circuit is in operation.

Illustratively, when the measurement assembly 404 is moved to a predetermined position of the nozzle, the measurement assembly 404 collects gas pressure data over time at the nozzle and sends the collected data to the process module 1001. The processing module 1001 determines the working condition of the blowing gas path according to the gas pressure data.

Those skilled in the art will appreciate that implementing all or part of the above-described methods may be accomplished by way of a computer program, which may be stored on a non-transitory computer readable storage medium and which, when executed, may comprise the steps of the above-described embodiments of the methods. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in various forms such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. The blowing gas path detection device is characterized by being used for detecting working conditions of a blowing gas path and comprises a pressure detection module, a transmission assembly and a driving module; the driving module is connected with the transmission assembly, and the transmission assembly is connected with the pressure detection module;

the driving module is used for driving the transmission assembly to drive the pressure detection module to move relative to the nozzle of the blowing air circuit so that the pressure detection module and the nozzle are in an aligned state;

the pressure detection module is used for collecting gas pressure data at the nozzle after the pressure detection module is aligned with the nozzle, and the gas pressure data are used for determining the working condition of the blowing gas circuit;

The pressure detection module comprises one or more pressure sensors, a driving cylinder and a bearing assembly; the pressure sensor and the driving cylinder are arranged on the bearing assembly; one end of each pressure sensor, which is close to the nozzle, is provided with a measuring component;

The driving cylinder is used for driving the measuring assembly of the pressure sensor to move to a preset position of the nozzle so that the measuring assembly can acquire gas pressure data at the nozzle;

the air-blowing gas path detection device further comprises a processing module, wherein the processing module is connected with the pressure detection module, the transmission assembly and the driving module;

The processing module is used for sending a first control instruction to the driving module to instruct the driving module to adjust the position of the pressure detection module so that the pressure detection module and the nozzle are in an aligned state; after the pressure detection module and the nozzle are in an aligned state, a second control instruction is sent to the pressure detection module to instruct the pressure detection module to collect gas pressure data at the nozzle; and determining the working condition of the blowing gas circuit according to the gas pressure data.

2. The air-blowing path detecting device according to claim 1, wherein the pressure detecting module further comprises a sliding member, the driving cylinder is provided on the sliding member to move in a main axis direction of the sliding member, the main axis direction being parallel to an arrangement direction of the one or more pressure sensors.

3. The blowout path inspection device according to claim 1 or 2, wherein the drive cylinder includes an energy storage assembly and one or more pushing assemblies disposed opposite an end of the pressure sensor remote from the measurement assembly.

4. A spray gas path detection apparatus according to claim 3, wherein the drive module comprises a drive motor;

The driving motor is used for driving the transmission assembly to drive the bearing assembly to move along a first direction so as to adjust the position of the pressure detection module.

5. A material sorting system comprising the blowing path detection apparatus of any one of claims 1-4 and a blowing assembly; the blowing assembly comprises a plurality of blowing air paths which are arranged in an array manner; the blowing assembly is disposed in alignment with the blowing path detection device.

6. The material sorting system of claim 5, wherein the blow path detection device is removably mounted on the blow assembly.

7. The material sorting system of claim 6, wherein the transmission assembly comprises a first combination component and the blowing assembly comprises a second combination component, the first combination component and the second combination component being detachably connected.

8. A control method, characterized by being applied to the blow-out path detecting apparatus according to any one of claims 1 to 4, comprising:

Controlling the driving module to drive the transmission assembly to move so that the transmission assembly drives the pressure detection module to be in an aligned state with the nozzle;

After the pressure detection module is in an aligned state with the nozzle, controlling the pressure detection module to collect gas pressure data at the nozzle;