WO2022022338A1

WO2022022338A1 - Unloading control method and device, mixing plant, and readable storage medium

Info

Publication number: WO2022022338A1
Application number: PCT/CN2021/107425
Authority: WO
Inventors: 靳俊发; 唐跃军; 涂明昌
Original assignee: 三一汽车制造有限公司
Priority date: 2020-07-30
Filing date: 2021-07-20
Publication date: 2022-02-03
Also published as: CN111791371B; CN111791371A

Abstract

The present application provides an unloading control method and device, a mixing plant, and a readable storage medium. The unloading control method comprises: obtaining a material formula, and according to the material formula, determining a first silo and a second silo which are adjacent in the unloading sequence; obtaining an unloading time period and the weight of aggregate in the first silo when an unloading door of the first silo is opened; determining an unloading speed according to the unloading time period and the weight of the aggregate in the first silo; and determining an unloading time interval between the second silo and the first silo according to the unloading speed and the distance between the first silo and the second silo. By means of the unloading control method in the present application, real-time working conditions of unloading can be determined, so as to intelligently adjust the unloading time interval between two silos which are adjacent in the unloading sequence, thereby achieving no heap, no overflow, and seamless connection of material flows, and achieving the purposes of accurate and efficient production and saving manpower and material resources.

Description

Discharge control method and device, mixing plant, and readable storage medium

This application claims the priority of Chinese Patent Application No. 202010748593.5 filed on July 30, 2020. The contents disclosed in the above Chinese patent application are hereby cited in their entirety as a part of this application.

technical field

The present application relates to the technical field of construction machinery, and in particular, to a discharge control method, a discharge control device, a mixing station, and a computer-readable storage medium.

Background technique

In the aggregate batching station of the traditional cement mixing plant, the multi-silo discharge control method is as follows:

1. Set the unloading time of each bin. Generally, the set unloading time is longer than the actual material unloading time to ensure that the material can be unloaded completely;

2. Set the discharge interval of the two bins, that is, after the discharge of the bin in front of the batching station is completed, the discharge of the second bin will start after a period of time.

In the above two discharge control methods, the discharge time of each aggregate is set according to the maximum amount of material used, resulting in a long gap in the material flow on the flat belt, resulting in low production efficiency; It needs manual cleaning and maintenance, which consumes a lot of manpower and material resources.

SUMMARY OF THE INVENTION

The present application aims to solve at least one of the technical problems existing in the prior art or related technologies.

To this end, one aspect of the present application is to provide a discharge control method.

Another aspect of the present application is to provide a discharge control device.

Yet another aspect of the present application is to propose a mixing plant.

Yet another aspect of the present application is to propose a computer-readable storage medium.

In view of this, according to one aspect of the present application, a method for controlling unloading is proposed, including: obtaining a material formula, and determining a first silo and a second silo adjacent to the unloading sequence according to the material formula; When the unloading door of the silo is opened, the unloading time and the weight of the material in the first silo are obtained; the unloading speed is determined according to the unloading time and the weight of the material in the first silo; according to the unloading speed and the first The distance between the silo and the second silo determines the discharge time interval of the second silo relative to the first silo.

The unloading control method provided in the present application is suitable for mixing plants, such as cement mixing plants, concrete mixing plants, etc. The mixing plant includes multiple silos, and the multiple silos are used for ingredients for the mixing station. When batching, by obtaining the material formula, the silo corresponding to the material formula can be determined (usually a material formula requires multiple silos for batching), the number, location and discharge order of the silos, so that the adjacent discharge order can be determined. The first silo and the second silo, and the distance between the first silo and the second silo. When the unloading door of the first silo is opened, that is, the first silo starts unloading, and the unloading time is obtained. At the same time, the weight of the material in the first silo is obtained. The weight of the material can determine the discharge speed. According to the unloading speed and the distance between the first silo and the second silo, the real-time working conditions of the unloading can be judged, such as estimating how long it will take for the first silo to complete the unloading, and the material conveying at this distance between the silo. time, etc., so as to determine the discharge time interval of the second silo relative to the first silo. Through the unloading control method of the present application, the real-time working conditions of unloading can be judged, so as to intelligently adjust the unloading time interval of two adjacent silos in the unloading sequence, so as to realize no stacking, no overflow, and seamless material flow Connection, to achieve the purpose of precise and efficient production, saving manpower and material resources.

According to the above-mentioned discharge control method of the present application, it can also have the following technical features:

In the above technical solution, the discharging control method further includes: presetting multiple material formulas, a bin corresponding to each material formula, the discharging sequence of each bin, and the width of the discharging door.

In this technical solution, by presetting a variety of material formulations, the silo corresponding to each material formulation, the unloading sequence of each silo and the width of the unloading door. At the beginning of each batching, it can automatically determine which bins to use, the structure, location and discharge order of each bin according to the current material formula. The real-time working conditions of each silo are judged, so as to automatically adjust the unloading time interval of two silos adjacent to the unloading sequence in the batching plant. Through the technical solution of the present application, the unloading time interval can be adjusted intelligently, so that no material stacking, no material overflow, seamless connection of material flow, and the production efficiency of the mixing station is greatly improved.

In any of the above technical solutions, the material formula includes at least the name and usage amount of the material; wherein the material is aggregate.

In this technical solution, the material formula includes at least but not limited to the name and usage amount of the material, wherein the material is aggregate, but is not limited to aggregate. Through the name of the material in the material formula and its usage, the material formula can be better associated with the silo, so that for each batching, the same silo can unload a material or a material with the same properties, while Different materials are not unloaded irregularly every time, for example, only sand and gravel are unloaded for No. 1 silo, or only coarse aggregates are unloaded, so as to avoid overflow. At the same time, the actual amount of aggregate used can be used in the calculation of the discharge speed, so as to better judge the real-time working conditions of the discharge, realize the automatic adjustment of the discharge time interval of the batching plant, and greatly improve the production of the batching plant. efficient.

In any of the above technical solutions, the step of acquiring the unloading time and the weight of the material in the first silo specifically includes: acquiring the unloading time and the weight of the material in the first silo according to a preset frequency.

In this technical solution, as the unloading time increases, the weight of the material in the first silo will decrease accordingly. By obtaining the unloading time and the weight of the material in the first silo according to the preset frequency, it is possible to obtain Multiple groups of unloading time and weight. The unloading speed is determined based on the multiple sets of unloading time and weight, and the obtained unloading speed is closer to the actual unloading speed, so as to accurately judge the real-time working condition of unloading.

In any of the above technical solutions, the step of determining the unloading speed according to the unloading time and the weight of the material in the first silo specifically includes: according to the usage amount of the material and the obtained amount of the material in the first silo. weight, and determine multiple weight changes; determine the first unloading speed according to each weight change and its corresponding unloading time, obtain multiple first unloading speeds, and determine all the first unloading speeds according to the multiple first unloading speeds the discharge speed.

In any of the above technical solutions, the step of determining the unloading speed according to a plurality of the first unloading speeds specifically includes: taking an average value of the multiple first unloading speeds as the unloading speed.

In this technical solution, the unloading time and the weight of the materials in the first silo are obtained according to the preset frequency, so as to obtain multiple sets of unloading times and weights, and the amount of material used is calculated by making a difference with each weight to obtain multiple sets of unloading times and weights. The weight change is calculated by quoting each weight change and the corresponding unloading time to obtain multiple first unloading speeds, and the average value of multiple first unloading speeds is taken as the unloading speed. The unloading speed is close to The actual working conditions of the first silo unloading, and then according to the distance between the first silo and the second silo, the time required for the material to be transported from the first silo to the second silo is estimated. , the combination of the two intelligently adjusts the discharge time interval of the second silo relative to the first silo.

In any of the above technical solutions, the mixing station includes a material conveying device, and the discharge time interval of the second silo relative to the first silo is determined according to the unloading speed and the distance between the first silo and the second silo. The steps specifically include: determining the first time required for the first silo to unload the remaining aggregates according to the unloading speed; obtaining the width of the unloading door of the first silo and the conveying speed of the material conveying device; The width of the material gate and the conveying speed determine the second time; according to the first time, the second time and the error time, the discharge time interval is determined.

In this technical solution, firstly, the first time, that is, the time required to discharge the remaining aggregate, can be determined according to the discharge speed and the weight of the remaining aggregate in the first silo. At the beginning of unloading, the required silo, the structure, location, and unloading sequence of each silo can be determined according to the material formula, so that the unloading of the current unloading silo (ie, the first silo) can be obtained. Door width. Similarly, the conveying speed of the material conveying device can also be preset in the system. Secondly, according to the distance between the bins (the distance between the first bin and the second bin), the width of the discharge door and the conveying speed, the second time is determined, that is, after the material is unloaded to the material conveying device, from the position of the first bin Time required for delivery to the second bin location. Finally, the discharge time interval is determined according to the first time, the second time and the error time. Wherein, the error time can be preset by those skilled in the art based on experience.

In any of the above technical solutions, the discharge control method further includes: obtaining the distance between the discharge door of the first silo and the material conveying device, and determining the error time according to the distance.

In this technical solution, the error time is determined according to the distance between the discharge door of the first silo and the material conveying device. Understandably, the larger the distance, the larger the error time.

According to another aspect of the present application, an unloading control device is proposed, comprising: a memory, where a computer program is stored in the memory; and a processor, which implements the unloading control method according to any of the above technical solutions when the processor executes the computer program.

In the unloading control device provided by the present application, when the processor executes the computer program, the steps of the unloading control method described in any of the above technical solutions are implemented, so the unloading control device includes the unloading control method described in any of the above technical solutions. all beneficial effects.

According to another aspect of the present application, a mixing plant is proposed, which includes the discharge control device described in the above technical solution.

The mixing plant provided by the present application includes the discharge control device described in the above technical solution, so the mixing plant has all the beneficial effects of the discharge control device.

According to yet another aspect of the present application, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the unloading control method in any of the foregoing technical solutions is implemented.

In the computer-readable storage medium provided by the present application, when the processor executes the computer program, the steps of the unloading control method described in any of the above technical solutions are implemented, so the computer-readable storage medium includes the unloading material described in any of the above-mentioned technical solutions. The full benefit of the control method.

Additional aspects and advantages of the present application will become apparent in the description section below, or learned by practice of the present application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

FIG. 1 shows a schematic flowchart of a discharge control method according to an embodiment of the present application;

FIG. 2 shows a schematic flow chart of a discharge control method according to another embodiment of the present application;

FIG. 3 shows a schematic flow chart of a discharge control method according to yet another embodiment of the present application;

FIG. 4 shows a schematic flow chart of a discharge control method according to another embodiment of the present application;

FIG. 5 shows a schematic flow chart of a discharge control method according to another embodiment of the present application;

Fig. 6 shows the logical schematic diagram of the discharge control method of a specific embodiment of the present application;

FIG. 7 shows a schematic diagram of a first silo and a second silo of an embodiment of the present application;

FIG. 8 shows a schematic block diagram of a discharge control device according to an embodiment of the present application;

FIG. 9 shows a schematic block diagram of a mixing plant according to an embodiment of the present application.

detailed description

In order to more clearly understand the above objects, features and advantages of the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other in the case of no conflict.

Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited to the specific details disclosed below. Example limitations.

An aspect of the embodiment of the present application provides a discharge control method for a mixing station, where the mixing station includes a plurality of silos.

FIG. 1 shows a schematic flowchart of a method for controlling unloading according to an embodiment of the present application. Wherein, the discharge control method includes:

Step 102, obtaining the material formula, and determining the first silo and the second silo adjacent to the unloading sequence according to the material formula;

Step 104, obtaining the unloading time and the weight of the material in the first silo based on the condition that the unloading door of the first silo is open;

Step 106: Determine the unloading speed according to the unloading time and the weight of the material in the first silo;

Step 108: Determine the discharge time interval of the second silo relative to the first silo according to the unloading speed and the distance between the first silo and the second silo.

FIG. 2 shows a schematic flow chart of a method for controlling unloading according to another embodiment of the present application. Wherein, the discharge control method includes:

Step 202, preset multiple material recipes, the silo corresponding to each material recipe and the discharge sequence of each silo; preset the structural information of each silo in the multiple silos, and the structural information at least includes the width of the discharge door ;

Step 204, obtaining the material formula, and determining the first silo and the second silo adjacent to the unloading sequence according to the material formula;

Step 206, when the unloading door of the first silo is opened, obtain the unloading time and the weight of the material in the first silo;

Step 208: Determine the unloading speed according to the unloading time and the weight of the material in the first silo;

Step 210: Determine the discharge time interval of the second silo relative to the first silo according to the unloading speed and the distance between the first silo and the second silo.

In this embodiment, a variety of material recipes, a silo corresponding to each material recipe, and the discharge sequence of each silo are preset, and the structure information of each silo in the multiple silos of the mixing station is preset, wherein, Structural information includes, but is not limited to, the discharge gate width. At the beginning of each batching, it can automatically determine which bins to use, the structure, location and discharge order of each bin according to the current material formula. The real-time working conditions of each silo are judged, so as to automatically adjust the unloading time interval of two silos adjacent to the unloading sequence in the batching plant. Through the embodiments of the present application, the unloading time interval can be adjusted intelligently, so that no material stacking, no overflowing, and seamless connection of material flows can be achieved, and the production efficiency of the mixing station can be greatly improved.

In any of the above embodiments, the material formula includes at least the name and usage amount of the material; wherein the material is aggregate.

In this embodiment, the material formula at least includes but is not limited to the name and usage amount of the material, wherein the material is aggregate, but is not limited to aggregate. Through the name of the material in the material formula and its usage, the material formula can be better associated with the silo, so that for each batching, the same silo can unload a material or a material with the same properties, while Different materials are not unloaded irregularly every time, for example, only sand and gravel are unloaded for No. 1 silo, or only coarse aggregates are unloaded, so as to avoid overflow. At the same time, the actual amount of aggregate used can be used in the calculation of the discharge speed, so as to better judge the real-time working conditions of the discharge, realize the automatic adjustment of the discharge time interval of the batching plant, and greatly improve the production of the batching plant. efficient.

FIG. 3 shows a schematic flowchart of a method for controlling unloading according to yet another embodiment of the present application. Wherein, the discharge control method includes:

Step 302, preset multiple material recipes, the silo corresponding to each material recipe and the unloading sequence of each silo; preset the structural information of each silo in the multiple silos, and the structural information at least includes the width of the discharge door ;

Step 304, obtaining the material formula, and determining the first silo and the second silo adjacent to the discharging sequence according to the material formula;

Step 306, based on the condition that the discharge door of the first silo is open, obtain the unloading time and the weight of the material in the first silo according to a preset frequency;

Step 308: Determine the unloading speed according to the obtained multiple sets of unloading times and the weight of the materials in the first silo;

Step 310: Determine the discharge time interval of the second silo relative to the first silo according to the unloading speed and the distance between the first silo and the second silo.

In this embodiment, as the unloading time increases, the weight of the material in the first silo will decrease accordingly. By obtaining the unloading time and the weight of the material in the first silo according to the preset frequency, it is possible to obtain Multiple groups of unloading time and weight. The unloading speed is determined based on the multiple sets of unloading time and weight, and the obtained unloading speed is closer to the actual unloading speed, so as to accurately judge the real-time working condition of unloading.

FIG. 4 shows a schematic flowchart of a method for controlling unloading according to another embodiment of the present application. Wherein, the discharge control method includes:

Step 402: Preset multiple material recipes, the silo corresponding to each material recipe and the unloading sequence of each silo; preset the structural information of each silo in the multiple silos, and the structural information at least includes the width of the discharge door ;

Step 404, obtaining the material formula, and determining the first silo and the second silo adjacent to the unloading sequence according to the material formula;

Step 406, based on the condition that the discharge door of the first silo is open, obtain the unloading time and the weight of the material in the first silo according to a preset frequency;

Step 408: Determine a plurality of weight changes according to the amount of material used and the obtained weights of the materials in the plurality of first silos; determine the first discharge speed according to each weight change and its corresponding discharge time, Obtain a plurality of first discharge speeds, and use the average value of the plurality of first discharge speeds as the discharge speed;

Step 410: Determine the discharge time interval of the second silo relative to the first silo according to the unloading speed and the distance between the first silo and the second silo.

In this embodiment, the unloading time and the weight of the materials in the first silo are obtained according to the preset frequency, so as to obtain multiple sets of unloading times and weights, and the amount of material used is calculated by making a difference with each weight to obtain multiple sets of unloading times and weights. The weight change is calculated by quoting each weight change and the corresponding unloading time to obtain multiple first unloading speeds, and the average value of multiple first unloading speeds is taken as the unloading speed. The unloading speed is close to The actual working conditions of the first silo unloading, and then according to the distance between the first silo and the second silo, the time required for the material to be transported from the first silo to the second silo is estimated. , the combination of the two intelligently adjusts the discharge time interval of the second silo relative to the first silo.

FIG. 5 shows a schematic flowchart of a method for controlling unloading according to another embodiment of the present application. Wherein, the mixing station includes a material conveying device, and the discharging control method includes:

Step 502, preset multiple material recipes, the silo corresponding to each material recipe and the discharge sequence of each silo; preset the structural information of each silo in the multiple silo, and the structural information at least includes the width of the discharge door ;

Step 504, obtaining the material formula, and determining the first silo and the second silo adjacent to the unloading sequence according to the material formula;

Step 506, based on the condition that the discharge door of the first silo is open, obtain the unloading time and the weight of the material in the first silo according to a preset frequency;

Step 508: Determine multiple weight changes according to the amount of material used and the obtained weights of the materials in the multiple first silos; determine the first unloading speed according to each weight change and its corresponding unloading time, Obtain a plurality of first discharge speeds, and use the average value of the plurality of first discharge speeds as the discharge speed;

Step 510, determining the first time required for the first silo to discharge the remaining aggregate according to the discharge speed;

Step 512: Obtain the width of the discharge door of the first silo and the conveying speed of the material conveying device; determine the second time according to the distance between the bins, the width of the discharge door, and the conveying speed;

Step 514: Determine the unloading time interval according to the first time, the second time and the error time.

In this embodiment, first, the first time, that is, the time required to discharge the remaining aggregates, can be determined according to the discharging speed and the weight of the remaining aggregates in the first silo. At the beginning of unloading, the required silo, the structure, location, and unloading sequence of each silo can be determined according to the material formula, so that the unloading of the current unloading silo (ie, the first silo) can be obtained. Door width. Similarly, the conveying speed of the material conveying device can also be preset in the system. Secondly, according to the distance between the bins (the distance between the first bin and the second bin), the width of the discharge door and the conveying speed, the second time is determined, that is, after the material is unloaded to the material conveying device, from the position of the first bin Time required for delivery to the second bin location. Finally, the discharge time interval is determined according to the first time, the second time and the error time. Wherein, the error time can be preset by those skilled in the art based on experience.

In the above embodiment, the discharging control method further includes: acquiring the distance between the discharging door of the first silo and the material conveying device, and determining the error time according to the distance.

In this embodiment, the error time is determined according to the distance between the first silo and the material conveying device. Understandably, the larger the distance, the larger the error time.

In a specific embodiment, a method for controlling discharging is provided, which is used in a mixing station, and the mixing station includes a plurality of silos, specifically an aggregate weighing hopper. The schematic diagram of the unloading control method is shown in Figure 6, and the implementation is as follows:

1. Collect the structural parameters of the batching station of the batching plant: the number of silos, the width of the discharge door of each silos, the distance between the discharge doors (ie the distance between the bins), the height from the discharge door to the flat belt, the speed of the flat belt and other parameters , and keep records;

2. Collect material formulas, each material formula at least includes the material name and usage;

3. Setting parameters: According to the collected structural parameters of the batching station of the batching station, set the corresponding parameters on the man-machine interface; according to the collected material formula, set the material formula on the man-machine interface, including whether each material is used, the amount of use, and set The silo corresponding to the material formula and the unloading sequence of each silo;

4. Control algorithm: Collect the sensor signal of the aggregate batching station scale sensor and the discharge door signal through the controller. The weight of the aggregate in the current unloading bin (the first bin) can be obtained in real time through the scale sensor signal. The state of the discharge door, including open or closed, can be obtained through the discharge door signal, thereby determining the first silo. According to the material formula, determine the corresponding silo, the location of each silo, the discharge sequence, and the distance between the adjacent unloading silo (that is, the distance between the first silo and the second silo), etc., and determine the quantity of the material. and the amount of each material used. The discharge speed of each material is determined by the signal of the scale sensor, the discharge time and the amount of each material used. According to the parameter information such as the discharge speed, the distance between the bins, the width of the discharge door, and the height of the discharge door to the flat belt, the discharge interval time of the second bin relative to the first bin is determined.

Among them, the discharge time can be collected by the controller, and can also be obtained by timing the controller.

The unloading control method provided by the specific embodiment of the present application intelligently judges the real-time working conditions of aggregate batching and unloading, automatically adjusts the unloading time of each aggregate in the mixing station, and realizes the seamless connection of the material flow on the belt, which can greatly improve the mixing station. production efficiency.

FIG. 7 shows a schematic diagram of a first silo and a second silo of an embodiment of the present application.

In another aspect of the present application, a discharge control device is proposed, which is used in a mixing plant. The mixing station includes a plurality of silos. FIG. 8 shows a schematic diagram of the discharge control device 600 according to an embodiment of the present application. block diagram. Wherein, the unloading control device 600 includes:

memory 602, the memory 602 stores a computer program;

The processor 604, when the processor 604 executes the computer program, implements the unloading control method according to any of the above embodiments.

In the unloading control device 600 provided by the embodiment of the present application, when the processor 604 executes the computer program, the steps of the unloading control method in any of the above-mentioned embodiments are implemented. Therefore, the unloading control device 600 includes the unloading control in any of the above-mentioned embodiments. full benefit of the method.

In yet another aspect of the present application, a mixing plant is proposed, and FIG. 9 shows a schematic block diagram of a mixing plant 700 according to an embodiment of the present application. Wherein, the mixing station 700 includes a plurality of silos, and the mixing station 700 further includes the discharging control device 702 of the above-mentioned embodiment.

The mixing station 700 provided by the embodiment of the present application includes the discharging control device 702 of the above-mentioned embodiment, so the mixing station 700 has all the beneficial effects of the discharging control device 702 .

Another aspect of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the unloading control method in any of the foregoing embodiments.

In the computer-readable storage medium provided by the embodiments of the present application, when the processor executes the computer program, the steps of the unloading control method in any of the foregoing embodiments are implemented. Therefore, the computer-readable storage medium includes the unloading control method in any of the foregoing embodiments. all beneficial effects.

In the description of this specification, the terms "first" and "second" are only used for the purpose of description, and should not be construed as indicating or implying relative importance, unless otherwise explicitly specified and limited; the terms "connection", " "Installation" and "fixing" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiment", etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in this application at least one embodiment or example of . In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

A discharge control method, characterized in that the discharge control method comprises:

Obtain the material formula, and determine the first silos and the second silos adjacent to the discharging sequence according to the material formula;

When the discharge door of the first silo is opened, obtain the unloading time and the weight of the material in the first silo;

Determine the unloading speed according to the unloading time and the weight of the material in the first silo;

The discharge time interval of the second silo relative to the first silo is determined according to the unloading speed and the distance between the first silo and the second silo.
The discharge control method according to claim 1, further comprising:

A variety of the material formulations, the silo corresponding to each material formulation, the unloading sequence of each silo and the width of the unloading door are preset.
The discharge control method according to claim 2, wherein,

The material formula includes at least the name and usage amount of the material;

Wherein, the material is aggregate.
The discharge control method according to claim 3, wherein the step of obtaining the discharge time and the weight of the material in the first silo specifically includes:

The unloading time and the weight of the material in the first silo are acquired according to a preset frequency.
The discharge control method according to claim 4, wherein the step of determining the discharge speed according to the discharge time and the weight of the material in the first silo specifically includes:

Determine a plurality of weight changes according to the usage amount of the material and the obtained weights of the materials in the plurality of first silos;

The first unloading speed is determined according to each weight change and its corresponding unloading time, and a plurality of the first unloading speeds are obtained, and the unloading speed is determined according to the plurality of the first unloading speeds.
The discharge control method according to claim 5, wherein the step of determining the discharge speed according to a plurality of the first discharge speeds specifically includes:

The average value of the plurality of first discharge speeds is used as the discharge speed.
The discharge control method according to any one of claims 1 to 6, characterized in that, the discharge control method is used in a mixing station, and the mixing station includes a material conveying device, and the discharge control method according to the discharge speed and the step of determining the unloading time interval of the second silo relative to the first silo by the distance between the first silo and the second silo, specifically including:

determining the first time required for the first silo to discharge the remaining material according to the discharge speed;

Obtain the width of the discharge door of the first silo and the conveying speed of the material conveying device;

Determine the second time according to the distance between the bins, the width of the discharge door of the first bin, and the conveying speed;

The discharge time interval is determined according to the first time, the second time and the error time.
The discharge control method according to claim 7, further comprising:

The distance between the discharge door of the first silo and the material conveying device is acquired, and the error time is determined according to the distance.
A discharge control device, characterized in that the discharge control device comprises:

a memory in which a computer program is stored;

a processor, which implements the unloading control method according to any one of claims 1 to 8 when the processor executes the computer program.
A mixing station, characterized in that the mixing station further comprises the discharging control device according to claim 9.
A computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the unloading control method according to any one of claims 1 to 8 is implemented.