CN111266179A

CN111266179A - Can prevent lower hopper of material jam

Info

Publication number: CN111266179A
Application number: CN202010225764.6A
Authority: CN
Inventors: 方顺利; 姚伟; 齐全; 张喜来
Original assignee: Thermal Power Research Institute
Current assignee: Xian Thermal Power Research Institute Co Ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-06-12

Abstract

The invention discloses a discharging hopper capable of preventing material blockage, which comprises a hopper, an extrusion head, a hydraulic pipeline, a control circuit, an oil pressure station and a control module, wherein the extrusion head is arranged on the hopper; the hopper comprises a hopper inclined section and a hopper vertical section which are sequentially communicated from top to bottom, a hopper inlet is arranged above the hopper inclined section, a hopper outlet is arranged below the hopper vertical section, an inlet grid plate is arranged at the hopper inlet, and an outlet grid plate is arranged at the hopper outlet; a plurality of extrusion heads are arranged on the periphery of the vertical section of the hopper above the outlet grid plate, one ends of the extrusion heads extend into the vertical section of the hopper to form extrusion cavities together with the vertical section of the hopper, and the other ends of the extrusion heads are communicated with the oil pressure station and the control module through hydraulic pipelines and control lines. Compared with the existing commonly used blanking hopper, the invention has the following advantages: the problem that materials are easy to block in the hopper can be solved, the materials with large sizes can be coarsely crushed through extrusion crushing of the extrusion head, and the pressure of a crusher in a subsequent crushing process is reduced.

Description

Can prevent lower hopper of material jam

Technical Field

The invention belongs to the technical field of material conveying and crushing, and particularly relates to a blanking hopper capable of preventing material blockage.

Background

In many industries such as mining and processing, materials are transported, crushed and the like, and a blanking hopper is needed. At the in-process of material feed, the phenomenon of material bridging jam in hopper 1 takes place more easily, must frequent manual cleaning this moment, and the material of mediation jam not only has seriously influenced work efficiency, and the material of clearance jam need consume a large amount of manpowers many times, and when the material size is great, clearance mediation work has great danger in addition.

Disclosure of Invention

The invention aims to provide a blanking hopper capable of preventing materials from being blocked, which can solve the problem that the hopper 1 is blocked by the materials during blanking, and can carry out coarse crushing on large materials to reduce the pressure of a follow-up crusher.

The invention is realized by adopting the following technical scheme:

a blanking hopper capable of preventing material blockage comprises a hopper, an extrusion head, a hydraulic pipeline, a control circuit, an oil pressure station and a control module; the hopper comprises a hopper inclined section and a hopper vertical section which are sequentially communicated from top to bottom, a hopper inlet is arranged above the hopper inclined section, a hopper outlet is arranged below the hopper vertical section, an inlet grid plate is arranged at the hopper inlet, and an outlet grid plate is arranged at the hopper outlet; a plurality of extrusion heads are arranged on the periphery of the vertical section of the hopper above the outlet grid plate, one ends of the extrusion heads extend into the vertical section of the hopper to form extrusion cavities together with the vertical section of the hopper, and the other ends of the extrusion heads are communicated with the oil pressure station and the control module through hydraulic pipelines and control lines.

A further improvement of the invention is that the vertical section of the hopper is rectangular in cross-sectional shape.

A further development of the invention consists in that two extrusion heads are arranged on each of two opposite side walls of the vertical section of the hopper.

A further improvement of the invention is that the inlet grid plate has an inlet grid size larger than the outlet grid size of the outlet grid plate.

The invention is further improved in that the power source of the extrusion head adopts a hydraulic type or an electric motor type.

A further development of the invention is that the extrusion heads have a size larger than the inlet grid size and that the distance between two adjacent extrusion heads is smaller than the outlet grid size.

The invention is further improved in that the number of the extrusion heads is determined according to the size of the vertical section interface of the hopper and the size of the extrusion heads, and the distance between the extrusion heads and the wall surface of the hopper and the distance between two adjacent extrusion heads are both ensured to be smaller than the size of the outlet grid.

The invention has the further improvement that the extrusion head comprises an extrusion head oil chamber and an extrusion head movable section, wherein one end of the extrusion head movable section is arranged in the extrusion head oil chamber, and the other end of the extrusion head movable section extends into the extrusion chamber.

The invention has at least the following beneficial technical effects:

1. the problem that materials are easy to block in the hopper can be solved.

2. The crushing machine can crush large-size materials roughly by extruding and crushing the extrusion head, and reduces the pressure of the crusher in the subsequent crushing process.

Drawings

FIG. 1 is a schematic view of a discharge hopper of the present invention for preventing material clogging;

FIG. 2 is a schematic cross-sectional view of an extrusion head and an extrusion chamber;

FIG. 3 is a schematic view of an inlet grid plate of the feed inlet;

FIG. 4 is a schematic view of an outlet grid plate of the spout.

Description of reference numerals:

1-hopper, 2-inlet grid plate, 3-hopper inclined section, 4-extrusion head, 5-hopper outlet, 6-outlet grid plate, 7-hopper vertical section, 8-inlet grid, 9-outlet grid, 10-hydraulic pipeline and control circuit, 11-oil pressure station and control module, 12-extrusion cavity, 13-extrusion head movable section, 14-extrusion head oil chamber.

Detailed Description

The invention is further described below with reference to the following figures and examples.

As shown in fig. 1 to 4, the blanking hopper capable of preventing material blockage according to the present invention comprises a hopper 1, an extrusion head 4, a hydraulic pipeline and control circuit 10, and an oil pressure station and control module 11; the hopper 1 comprises a hopper inclined section 3 and a hopper vertical section 7 which are sequentially communicated from top to bottom, a hopper inlet is arranged above the hopper inclined section 3, a hopper outlet 5 is arranged below the hopper vertical section 7, an inlet grid plate 2 is arranged at the hopper inlet, and an outlet grid plate 6 is arranged at the hopper outlet 5; a plurality of extrusion heads 4 are circumferentially arranged on the vertical section 7 of the hopper above the outlet grid plate 6, one ends of the extrusion heads 4 extend into the vertical section 7 of the hopper to form extrusion cavities 12 together with the vertical section 7 of the hopper, and the other ends of the extrusion heads 4 are communicated with an oil pressure station and a control module 11 through hydraulic pipelines and control lines 10.

Wherein the inlet grid 8 of the inlet grid plate 2 is larger in size than the outlet grid 9 of the outlet grid plate 6. The extrusion heads 4 are larger in size than the inlet grid 8 and the distance between two adjacent extrusion heads 4 is smaller than the outlet grid 9.

Furthermore, the power source of the extrusion head 4 adopts a hydraulic type or a motor type. The number of the extrusion heads 4 is determined according to the size of the interface of the vertical section 7 of the hopper and the size of the extrusion heads 4, and the distance between the extrusion heads 4 and the wall surface of the hopper 1 and the distance between two adjacent extrusion heads 4 are both ensured to be smaller than the size of the outlet grid 9. The extrusion head 4 comprises an extrusion head oil chamber 14 and an extrusion head movable section 13, one end of the extrusion head movable section is arranged in the extrusion head oil chamber 14, and the other end of the extrusion head movable section extends into the extrusion cavity 12.

When in work, the invention comprises the following implementation steps:

1) the lower hopper is covered with an inlet grid plate 2, materials are poured on the inlet grid plate 2, the materials smaller than the size of an inlet grid 8 fall into the hopper 1, the materials larger than the size of the inlet grid 8 are blocked and are cleaned regularly, the materials can be primarily sorted through the step, and the oversized materials are returned to the previous working procedure to be crushed again and then are sent to the inlet of the lower hopper again;

2) after falling down, the material passes through the hopper inclined section 3, the hopper vertical section 7 and the extrusion cavity 12 in sequence; the material with the size smaller than the outlet grid 9 falls through the grid and enters the next procedure from the hopper outlet 5, and the material with the size larger than the outlet grid 9 is intercepted by the grid plate and stays in the extrusion cavity 12;

3) the extrusion heads 4 symmetrically arranged on the vertical section 7 of the hopper perform extrusion action at regular time or according to requirements, and extrude and crush large-size materials in the extrusion cavity 12 through repeated extrusion until the size of the materials is smaller than that of the outlet grid 9, and the materials fall through the outlet grid plate 6 and enter the next procedure from the outlet 5 of the hopper.

Compared with the existing commonly used blanking hopper, the invention has the following advantages:

1. the problem that materials are easy to block in the hopper 1 can be solved.

2. The extrusion crushing of the extrusion head 4 can be carried out to coarsely crush large-size materials, and the pressure of a crusher in the subsequent crushing process is reduced.

Claims

1. A blanking hopper capable of preventing material blockage is characterized by comprising a hopper (1), an extrusion head (4), a hydraulic pipeline, a control circuit (10), an oil pressure station and a control module (11); wherein,

the hopper (1) comprises a hopper inclined section (3) and a hopper vertical section (7) which are sequentially communicated from top to bottom, a hopper inlet is arranged above the hopper inclined section (3), a hopper outlet (5) is arranged below the hopper vertical section (7), an inlet grid plate (2) is arranged at the hopper inlet, and an outlet grid plate (6) is arranged at the hopper outlet (5); a plurality of extrusion heads (4) are arranged on the periphery of a vertical section (7) of the hopper above the outlet grid plate (6), one ends of the extrusion heads (4) extend into the vertical section (7) of the hopper to form extrusion cavities (12) together with the vertical section (7) of the hopper, and the other ends of the extrusion heads (4) are communicated with an oil pressure station and a control module (11) through hydraulic pipelines and control lines (10).

2. A hopper according to claim 1, characterised in that the vertical section (7) of the hopper is rectangular in cross-section.

3. A hopper according to claim 2, characterised in that the vertical section (7) of the hopper is provided with two squeezing heads (4) on each of the two opposite side walls.

4. A skip bucket according to claim 1, characterised in that the inlet grid plate (2) has inlet grids (8) of a larger size than the outlet grids (9) of the outlet grid plate (6).

5. A hopper according to claim 1, characterised in that the extrusion head (4) is powered hydraulically or by an electric motor.

6. A hopper according to claim 1, characterised in that the size of the extrusion heads (4) is greater than the size of the inlet grid (8) and the distance between two adjacent extrusion heads (4) is less than the size of the outlet grid (9).

7. A hopper according to claim 1, characterised in that the number of extrusion heads (4) is determined by the size of the boundary surface of the vertical section (7) of the hopper and the size of the extrusion heads (4), ensuring that the distance between an extrusion head (4) and the wall of the hopper (1) and between two adjacent extrusion heads (4) is less than the size of the outlet grid (9).

8. A discharge hopper according to claim 1, characterised in that the extrusion head (4) comprises an extrusion head oil chamber (14) and an extrusion head moving section (13) having one end arranged in the extrusion head oil chamber (14) and the other end extending into the extrusion chamber (12).