Feeding device of crusher in coal cleaning plant

Abstract

The utility model discloses a coal cleaning plant crusher feeding device which comprises a rack, a belt conveyor is arranged on the rack, a stock bin is fixedly arranged on the rack and located above the feeding end of the belt conveyor, and a spiral material control mechanism is fixedly arranged at an outlet in the lower end of the stock bin. Compared with the prior art, the automatic feeding device has the advantages that the discharging amount and speed of coal briquettes at the outlet of the stock bin can be accurately controlled through the spiral material control mechanism, the discharging speed of the coal briquettes at the outlet of the stock bin can be accurately controlled, and the discharging speed of the coal briquettes at the outlet of the stock bin can be accurately controlled. And the situation that the coal briquettes are distributed unevenly in the conveying process is effectively avoided. The electronic weighing mechanism monitors the weight of materials at the discharging end of the belt conveyor in real time, linkage of the PLC and the motor is combined, the running state of the belt conveyor and rotation of the material shifting plate can be adjusted according to the weight of the materials, and coal briquettes are prevented from being accumulated and blocked at the tail end of the conveyor in advance.

Description

Technical Field

[0001] This utility model relates to the technical field of coal washing equipment, specifically to a feeding device for a coal washing plant crusher. Background Technology

[0002] In the coal washing plant's production process, crusher feeding is a crucial step, directly impacting coal washing efficiency and quality. The feeding device needs to deliver coal blocks evenly and stably into the crusher to ensure continuous crushing operations.

[0003] Traditional coal washing plant crusher feeding equipment typically consists of a simple hopper and a belt conveyor. Coal blocks in the hopper fall directly onto the belt conveyor by gravity, and then the belt conveyor transports the coal blocks to the crusher.

[0004] However, these traditional feeding devices have significant drawbacks. Firstly, they lack effective preventative mechanisms for the feeding process, making it difficult to precisely control the amount and speed of coal feeding, resulting in uneven distribution of coal during transport. Secondly, coal easily accumulates at the discharge end of the belt conveyor. Without corresponding anti-blockage measures, when coal accumulates to a certain extent, it causes congestion at the end of the conveyor, severely impacting production efficiency. Furthermore, once congestion occurs, clearing it is extremely inconvenient, requiring manual cleaning, consuming significant manpower and time, further reducing production efficiency and increasing production costs. Utility Model Content

[0005] (I) Technical Issues

[0006] This utility model provides a feeding device for a coal washing plant crusher, which solves the problems of traditional feeding equipment lacking a prevention mechanism, coal blocks easily accumulating and clogging at the end of the conveyor, and inconvenience in clearing blockages.

[0007] (II) Technical Content

[0008] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a feeding device for a coal washing plant crusher, including a frame, a belt conveyor on the frame, a hopper fixedly mounted on the frame above the feed end of the belt conveyor, side guard plates fixedly mounted on the upper surface of the frame and on both the front and rear sides of the belt conveyor, a spiral material control mechanism fixedly mounted at the lower outlet of the hopper, an electronic weighing mechanism fixedly mounted inside the frame below the discharge end of the belt conveyor, and a blockage clearing component rotatably mounted above the discharge end of the belt conveyor. The blockage clearing component includes a rotating shaft rotatably mounted between the side guard plates, at least one material-pushing plate fixedly mounted on the rotating shaft, a motor for driving the rotating shaft to rotate fixedly mounted on the outer side of the side guard plates, and a rubber plate fixedly mounted on the side of the material-pushing plate away from the rotating shaft.

[0009] Furthermore, it also includes a PLC controller fixedly mounted on the outer side of the side guard plate, and the motor and electronic weighing mechanism are both electrically connected to the PLC controller.

[0010] Furthermore, the electronic weighing mechanism includes an electronic scale embedded and fixed inside the frame. The upper weighing end of the electronic scale is fixedly provided with a groove, and several rotating rollers are rotatably arranged inside the groove. The rotating rollers are in contact with the bottom surface of the belt conveyor.

[0011] Furthermore, the surface of the belt conveyor is fixedly provided with several anti-slip protrusions.

[0012] Furthermore, the spiral material control mechanism includes a spiral auger rotatably disposed inside the bottom outlet of the hopper, and a second motor fixedly disposed inside the hopper for driving the spiral auger to rotate.

[0013] Furthermore, an oscillator is fixedly installed on the outer side of the bottom of the hopper.

[0014] (III) Technical Effects

[0015] The advantages of this utility model compared with the prior art are:

[0016] 1. Precise material control: Through the spiral material control mechanism, the rotation of the spiral auger and the drive of the second motor can precisely control the amount and speed of coal blocks discharged at the outlet of the hopper, effectively avoiding uneven distribution of coal blocks during the conveying process, and providing a stable and appropriate feed amount for the crusher.

[0017] 2. Congestion Prevention: The electronic weighing mechanism monitors the material weight at the discharge end of the belt conveyor in real time. Combined with the linkage between the PLC controller and the motor, the operating status of the belt conveyor and the rotation of the material guide plate can be adjusted according to the material weight, preventing coal from accumulating and causing congestion at the end of the conveyor. When a small amount of coal accumulates, the motor-driven shaft rotates the material guide plate. The rubber plates on the side of the material guide plate effectively move the coal to prevent congestion while avoiding damage to the equipment. The unblocking process requires no manual operation, is convenient and quick, greatly improves production efficiency, and reduces labor costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a feeding device for a coal washing plant crusher according to the present invention. Figure 1 .

[0019] Figure 2 This is a three-dimensional structural diagram of a feeding device for a coal washing plant crusher according to the present invention. Figure 2 .

[0020] Figure 3 This is a three-dimensional structural diagram of a feeding device for a coal washing plant crusher according to the present invention. Figure 3 .

[0021] Figure 4 This is a schematic diagram of the main structure of a feeding device for a coal washing plant crusher according to the present invention.

[0022] Figure 5 This is a top view schematic diagram of a feeding device for a coal washing plant crusher according to the present invention.

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of a feeding device for a coal washing plant crusher according to the present invention.

[0024] As shown in the figure: 1. Frame; 2. Belt conveyor; 3. Hopper; 4. Screw control mechanism; 5. Side guard plate; 6. Rotary shaft; 7. Feeding plate; 8. Motor; 9. PLC controller; 10. Electronic scale; 11. Groove; 12. Rotary roller; 13. Anti-slip ridge; 14. Screw auger; 15. Motor II; 16. Vibrator; 17. Rubber plate. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] Combined with appendix Figure 1 To be continued Figure 6A feeding device for a coal washing plant crusher includes a frame 1, a belt conveyor 2 mounted on the frame 1, a plurality of anti-slip ridges 13 fixedly provided on the surface of the belt conveyor 2, a hopper 3 fixedly provided on the frame 1 above the feed end of the belt conveyor 2, side guard plates 5 fixedly provided on the upper surface of the frame 1 and on both the front and rear sides of the belt conveyor 2, a spiral material control mechanism 4 fixedly provided at the lower outlet of the hopper 3, an electronic weighing mechanism fixedly provided inside the frame 1 below the discharge end of the belt conveyor 2, and a blockage clearing component rotatably provided above the discharge end of the belt conveyor 2. The blockage clearing component includes a rotating shaft 6 rotatably disposed between the side guard plates 5, at least one material-pushing plate 7 fixedly provided on the rotating shaft 6, a motor 8 for driving the rotating shaft 6 to rotate fixedly provided on the outer side of the side guard plates 5, and a rubber plate 17 fixedly provided on the side of the material-pushing plate 7 away from the rotating shaft 6.

[0029] A feeding device for a coal washing plant crusher also includes a PLC controller 9 fixedly installed on the outer side of a side guard plate 5. A motor 8 and an electronic weighing mechanism are both electrically connected to the PLC controller 9. The electronic weighing mechanism includes an electronic scale 10 embedded and fixedly installed inside a frame 1. A groove 11 is fixedly provided on the upper weighing end of the electronic scale 10. Several rotating rollers 12 are rotatably installed inside the groove 11. The rotating rollers 12 are in contact with the bottom surface of the belt conveyor 2.

[0030] In this embodiment, as a preferred technical solution, the spiral material control mechanism 4 includes a spiral auger 14 rotatably disposed inside the bottom outlet of the hopper 3, and a motor 15 fixedly disposed inside the hopper 3 for driving the spiral auger 14 to rotate. An oscillator 16 is fixedly disposed on the outer side of the bottom of the hopper 3.

[0031] The working principle of this utility model's feeding device for a coal washing plant crusher is as follows: During operation, the screw control mechanism 4 precisely regulates the amount and speed of coal blocks discharged from the hopper 3, ensuring they fall evenly onto the belt conveyor 2. The belt conveyor 2 relies on its anti-slip ridges 13 to stably transport the coal blocks. An electronic weighing mechanism monitors the weight of the coal blocks at the discharge end in real time and feeds the data back to the PLC controller 9. When an abnormal weight indicates potential congestion, the PLC controller 9 controls the motor 8 to drive the unblocking component, using the material-pulling plate 7 and rubber plate 17 to clear the blockage and ensure smooth conveying.

[0032] The working process of the feeding device for a coal washing plant crusher according to this utility model is as follows:

[0033] 1. Preparation stage: Turn on the power to the equipment, and all electrical components such as PLC controller 9, motor 8, motor 2 15, oscillator 16 and electronic scale 10 enter the standby state.

[0034] 2. Feeding stage: Motor 2 15 starts, driving the auger 14 to rotate inside the bottom outlet of hopper 3, slowly pushing the coal blocks in hopper 3 onto belt conveyor 2. At the same time, vibrator 16 starts working to assist the coal blocks to be fed smoothly and prevent the coal blocks from clogging at the outlet of hopper 3.

[0035] 3. Conveying Stage: Coal blocks fall onto belt conveyor 2. As belt conveyor 2 operates, the anti-slip ridges 13 on its surface increase the friction with the coal blocks, stably conveying the coal blocks towards the discharge end. During the conveying process, side guard plates 5 prevent coal blocks from falling off the sides of the belt.

[0036] 4. Monitoring stage: The electronic scale 10 monitors the weight of the coal on the rotating roller 12 in real time. The rotating roller 12 is in contact with the bottom surface of the belt conveyor 2 and transmits the weight data of the coal at the discharge end of the belt conveyor 2 to the electronic scale 10. The electronic scale 10 then feeds the data back to the PLC controller 9.

[0037] 5. Clearing Blockage Stage: When the PLC controller 9 determines, based on data from the electronic scale 10, that the coal weight is abnormal and may be accumulating and causing blockage, it immediately controls the motor 8 to start. The motor 8 drives the rotating shaft 6 to rotate, and the material-pushing plate 7 fixed on the rotating shaft 6 rotates accordingly. The rubber plate 17 on the side of the material-pushing plate 7 pushes aside any coal that may be accumulating, allowing it to smoothly enter the crusher and preventing blockage.

[0038] The present invention and its embodiments have been described above. This description is not restrictive. The accompanying drawings are only one embodiment of the present invention. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A feeding device for a coal washing plant crusher, comprising a frame (1), a belt conveyor (2) mounted on the frame (1), a hopper (3) fixedly mounted on the frame (1) above the feed end of the belt conveyor (2), and side guard plates (5) fixedly mounted on the upper surface of the frame (1) on both the front and rear sides of the belt conveyor (2), characterized in that: A spiral material control mechanism (4) is fixedly provided at the lower outlet of the hopper (3). An electronic weighing mechanism is fixedly provided inside the frame (1) and below the discharge end of the belt conveyor (2). A blockage clearing component is rotatably provided above the discharge end of the belt conveyor (2). The blockage clearing component includes a rotating shaft (6) rotatably provided between the side guard plates (5). At least one material-pushing plate (7) is fixedly provided on the rotating shaft (6). A motor (8) for driving the rotating shaft (6) to rotate is fixedly provided on the outside of the side guard plate (5). A rubber plate (17) is fixedly provided on the side of the material-pushing plate (7) away from the rotating shaft (6).

2. The feeding device for a coal washing plant crusher according to claim 1, characterized in that: It also includes a PLC controller (9) fixed on the outer side of the side guard plate (5), and the motor (8) and the electronic weighing mechanism are electrically connected to the PLC controller (9).

3. The feeding device for a coal washing plant crusher according to claim 2, characterized in that: The electronic weighing mechanism includes an electronic scale (10) embedded and fixed inside the frame (1). The upper weighing end of the electronic scale (10) is fixedly provided with a groove (11). Several rotating rollers (12) are rotatably provided inside the groove (11). The rotating rollers (12) are in contact with the bottom surface of the belt conveyor (2).

4. The feeding device for a coal washing plant crusher according to claim 1, characterized in that: The belt conveyor (2) has several anti-slip protrusions (13) fixedly provided on its surface.

5. The feeding device for a coal washing plant crusher according to claim 1, characterized in that: The spiral material control mechanism (4) includes a spiral auger (14) that is rotatably located inside the bottom outlet of the hopper (3), and a second motor (15) that is fixed inside the hopper (3) to drive the spiral auger (14) to rotate.

6. The feeding device for a coal washing plant crusher according to claim 1, characterized in that: A vibrator (16) is fixedly installed on the outer bottom of the hopper (3).

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