Feeding device for coal washing

Abstract

The utility model relates to the field and discloses a coal washing feeding device which comprises a supporting bottom plate, a discharging hopper is arranged at the upper end of the supporting bottom plate, a conveying belt is hinged to the inner bottom face of the discharging hopper, a conveying window matched with the conveying belt is arranged on one side of the discharging hopper, and a discharging inclined plate is arranged in the discharging hopper and located on one side of the conveying belt. The two sides of the conveying belt are each fixedly connected with one or more hinged plates which are correspondingly arranged, a feeding plate is rotationally connected between every two opposite hinged plates, rotating shafts are arranged at the two ends of each feeding plate, the sides, away from the feeding plates, of the hinged plates are each fixedly connected with an adjusting sleeve concentric with the corresponding rotating hole, and the sides, extending into the rotating cylinders, of the rotating shafts are fixedly connected with shifting pieces. A blocking piece is fixedly connected to one side in the adjusting sleeve, and a reset tension spring is fixedly connected between the blocking piece and the shifting piece. Compared with the prior art, the coal feeding device has the advantages that coal can be directly fed, workers do not need to feed the coal, and meanwhile, the coal can be upwards consigned and prevented from sliding down.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to a feeding device for coal washing. Background Art

[0002] Coal washing is an indispensable process in coal deep processing. The coal directly mined from the mine is called raw coal. A lot of impurities are mixed in the raw coal during the mining process, and the quality of the coal is also different. The coal with small internal ash content and large internal ash content is mixed together. Coal washing is an industrial process of removing impurities from raw coal or classifying high-quality coal and low-quality coal.

[0003] After the coal raw materials are transported to the coal washing plant by freight equipment, they need to be unloaded first, and then the coal materials are manually filled into the input end of the feeding equipment by the staff and transported along with the feeding equipment. Moreover, when the existing feeding equipment transports materials upward, the materials are easy to slide off the conveyor belt, which greatly affects the feeding efficiency. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] The technical problem to be solved by the utility model is that the existing feeding mechanism requires the staff to perform the feeding work first, which is time-consuming and laborious, and the coal materials are easy to slide during the upward feeding process.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the technical solution provided by the utility model is: a feeding device for coal washing, including a supporting bottom plate, a discharging hopper is arranged at the upper end of the supporting bottom plate, a conveyor belt is hinged to the inner bottom surface of the discharging hopper, a conveying window matched with the conveyor belt is arranged on one side of the discharging hopper, a first lifting cylinder for driving the conveyor belt to lift is hinged on the supporting bottom plate, a feeding inclined plate is arranged on one side of the conveyor belt in the discharging hopper, at least one pair of corresponding hinged plates are fixedly connected to both sides of the conveyor belt, a feeding plate is rotatably connected between the two opposite hinged plates, both ends of the feeding plate are provided with rotating shafts, a rotating hole matched with the rotating shaft is arranged on the feeding plate, adjusting sleeves concentric with the rotating hole are fixedly connected to the sides of the hinged plates far away from the feeding plate, a dial is fixedly connected to one side of the rotating shaft extending into the adjusting sleeve, a stop piece is fixedly connected to one side of the adjusting sleeve, and a return tension spring is fixedly connected between the stop piece and the dial.

[0008] As an improvement, a limiting stop post is fixedly connected to one side of the adjusting sleeve close to the return tension spring and close to the dial.

[0009] As an improvement, one end of the inclined blanking plate away from the conveyor belt is hinged inside the discharge hopper, and a second lifting cylinder is hinged to the inner bottom surface of the discharge hopper, and the output end of the second lifting cylinder is hinged to the bottom surface of the inclined blanking plate.

[0010] As an improvement, the inclined blanking plate is a U-shaped plate, and a movable plate is slidably inserted into the inclined blanking plate. A compression spring is fixedly connected between one end of the movable plate close to the conveyor belt and the inner wall of the inclined blanking plate.

[0011] As an improvement, a receiving tray is slidably inserted into the bottom surface of the discharge hopper, and a pulling handle is provided at one end of the receiving tray.

[0012] As an improvement, moving wheels are provided at the four corners of the bottom surface of the supporting bottom plate.

[0013] (III) Beneficial effects

[0014] The advantages of the present utility model compared with the prior art are as follows:

[0015] (1) After the coal is transported to the coal washing plant, it can be directly unloaded into the discharge hopper, and the coal in the discharge hopper can be directly conveyed through the conveyor belt. During the upward conveying process, the coal is supported by the feeding plate to prevent the coal from slipping.

[0016] (2) Through the first lifting cylinder, the height of the feeding can be adjusted, which is convenient for conveying to different equipment.

[0017] (3) Through the cooperation of the reset tension spring, the adjusting sleeve, the retaining piece and the dial piece, when the feeding plate moves to the end of the inclined blanking plate, the gap between the inclined blanking plate and the conveyor belt can be blocked, and at the same time, after swinging downward by a certain angle, it passes through the inclined blanking plate to carry out the feeding work. Description of the drawings

[0018] Figure 1 is an exploded view of a feeding device for coal washing of the present utility model.

[0019] Figure 2 is a schematic structural diagram of a feeding device for coal washing of the present utility model.

[0020] Figure 3 is a sectional view of a feeding device for coal washing of the present utility model.

[0021] Figure 4 is a schematic structural diagram of the conveyor belt of a feeding device for coal washing of the present utility model.

[0022] Figure 5 is an enlarged view of part A of a feeding device for coal washing of the present utility model.

[0023] Figure 6 is a schematic structural diagram of the feeding plate of a feeding device for coal washing of the present utility model.

[0024] As shown in the figure: 1. Support bottom plate; 2. Discharge hopper; 3. Conveyor belt; 4. Feeding plate; 5. Hinge plate; 6. Adjusting sleeve; 7. Flap; 8. Limit stop post; 9. Conveying window; 10. First lifting cylinder; 11. Inclined blanking plate; 12. Second lifting cylinder; 13. Movable plate; 14. Compression spring; 15. Receiving tray; 16. Pull handle; 17. Movable wheel; 18. Rotating shaft; 19. Paddle; 20. Return tension spring. Specific implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0026] As Figures 1 to 4 shown, a feeding device for coal washing includes a support bottom plate 1. A discharge hopper 2 is provided at the upper end of the support bottom plate 1. A conveyor belt 3 is hinged to the inner bottom surface of the discharge hopper 2. A conveying window 9 cooperating with the conveyor belt 3 is provided on one side of the discharge hopper 2. A receiving tray 15 is slidably inserted into the bottom surface of the discharge hopper 2. A pull handle 16 is provided at one end of the receiving tray 15. Movable wheels 17 are provided at the four corners of the bottom surface of the support bottom plate 1. A first lifting cylinder 10 for driving the conveyor belt 3 to lift is hinged on the support bottom plate 1. An inclined blanking plate 11 is provided inside the discharge hopper 2 on one side of the conveyor belt 3. One end of the inclined blanking plate 11 away from the conveyor belt 3 is hinged inside the discharge hopper 2. A second lifting cylinder 12 is hinged to the inner bottom surface of the discharge hopper 2. The output end of the second lifting cylinder 12 is hinged to the bottom surface of the inclined blanking plate 11. The inclined blanking plate 11 is a U-shaped plate. A movable plate 13 is slidably inserted into the inclined blanking plate 11. A compression spring 14 is fixedly connected between the end of the movable plate 13 close to the conveyor belt 3 and the inner wall of the inclined blanking plate 11.

[0027] As Figures 4 to 6As shown in the figure, on both sides of the conveyor belt 3, there are fixedly connected with not less than one pair of corresponding hinge plates 5. Between the two opposite hinge plates 5, there is a feeding plate 4 rotatably connected. At both ends of the feeding plate 4, there are rotating shafts 18. The feeding plate 4 is provided with rotating holes cooperating with the rotating shafts 18. On the side of the hinge plate 5 away from the feeding plate 4, there is fixedly connected with an adjusting sleeve 6 concentric with the rotating hole. On one side of the rotating shaft 18 extending into the adjusting sleeve 6, there is fixedly connected with a dial 19. On one side of the adjusting sleeve 6, there is fixedly connected with a stop piece 7. Between the stop piece 7 and the dial 19, there is fixedly connected with a reset tension spring 20. Inside the adjusting sleeve 6 and on the side of the dial 19 close to the reset tension spring 20, there is fixedly connected with a limit stop post 8.

[0028] In specific use, the device is moved to the unloading point of the truck through the moving wheel 17, so that the coal material is unloaded into the unloading hopper 2 between the trucks. The device is pushed to one side of the equipment. The first lifting cylinder 10 is started to push the conveyor belt 3 to swing up and down at an angle to adjust the conveying height. The conveyor belt 3 is started to move to convey the coal material in the unloading hopper 2 upward. When the feeding plate 4 moves to one end of the feeding inclined plate 11, since the length of the feeding plate 4 is greater than the distance between the conveyor belt 3 and the feeding inclined plate 11, the feeding plate 4 first seals the gap between the feeding inclined plate 11 and the conveyor belt 3 to prevent the coal material from falling. With the movement of the conveyor belt 3, the feeding plate 4 abuts against the end of the feeding inclined plate 11 and swings downward clockwise. The feeding inclined plate 11 drives the rotating shaft 18 to rotate clockwise. The rotating shaft 18 drives the dial 19 to rotate clockwise along the adjusting sleeve 6, pulling the reset tension spring 20 to undergo a tensile deformation. When the feeding plate 4 passes through the gap between the conveyor belt 3 and the feeding inclined plate 11, under the restoring elastic force of the reset tension spring 20, the rotating shaft 18 is pulled to rotate reversely for reset. Through the limit stop block, it is prevented that the feeding plate 4 rotates excessively. Through the feeding plate 4, the upward supporting of the material can be realized to prevent the material from sliding downward. With the continuous movement of the conveyor belt 3, each feeding plate 4 successively seals the gap between the conveyor belt 3 and the feeding inclined plate 11. With the cooperation of the conveying speed of the conveyor belt 3 and the density between adjacent feeding plates 4, it is difficult for the coal material to leak out from the gap.

[0029] When the amount of coal material in the unloading hopper 2 is small, the second lifting cylinder 12 is started to push the feeding inclined plate 11 to swing counterclockwise upward. The inclination of the feeding inclined plate 11 increases, so that the coal material on the feeding inclined plate 11 quickly slides onto the conveyor belt 3. During the upward swing of the feeding inclined plate 11, under the restoring elastic force of the compression spring 14, the movable plate 13 is pushed to extend outward to prevent the coal material from sliding from the gap between the upper end of the feeding inclined plate 11 and the unloading hopper 2. Some of the coal slag falling to the lower end of the feeding inclined plate 11 is collected through the receiving tray 15. By pulling the handle 16, the receiving tray 15 can be pulled out.

[0030] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0032] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A feeding device for coal washing, comprising a supporting bottom plate (1), a discharge hopper (2) is provided at the upper end of the supporting bottom plate (1), a conveyor belt (3) is hingedly connected to the inner bottom surface of the discharge hopper (2), and a conveying window (9) cooperating with the conveyor belt (3) is provided on one side of the discharge hopper (2), characterized in that: A first lifting cylinder (10) for driving the conveyor belt (3) to be lifted and lowered is hingedly connected to the support bottom plate (1); a material discharging inclined plate (11) is provided in the discharge hopper (2) on one side of the conveyor belt (3); both sides of the conveyor belt (3) are fixedly connected with at least one hinged plate (5) arranged corresponding to each other; a feed plate (4) is rotatably connected between the two opposite hinged plates (5); both ends of the feed plate (4) are provided with a rotating shaft (18); the feed plate (4) is provided with a rotating hole matched with the rotating shaft (18); the hinged plate (5) is fixedly connected with an adjusting sleeve (6) concentric with the rotating hole on one side away from the feed plate (4); the rotating shaft (18) extends to a side of the adjusting sleeve (6) and is fixedly connected with a paddle (19); a baffle (7) is fixedly connected to one side of the adjusting sleeve (6); a return tension spring (20) is fixedly connected between the baffle (7) and the paddle (19).

2. A feeding device for coal washing according to claim 1, characterized in that: A limit stop post (8) is fixedly connected to the adjusting sleeve (6) on one side of the paddle (19) close to the return tension spring (20).

3. A feeding device for coal washing according to claim 1, characterized in that: The end of the material discharge inclined plate (11) away from the conveyor belt (3) is hinged in the discharge hopper (2), and the inner bottom surface of the discharge hopper (2) is hinged with a second lifting cylinder (12), and the output end of the second lifting cylinder (12) is hinged to the bottom surface of the material discharge inclined plate (11).

4. A feeding device for coal washing according to claim 1, characterized in that: The unloading inclined plate (11) is a U-shaped plate, a movable plate (13) is slidably inserted in the unloading inclined plate (11), and a compression spring (14) is fixedly connected between one end of the movable plate (13) close to the conveyor belt (3) and the inner wall of the unloading inclined plate (11).

5. A feeding device for coal washing according to claim 1, characterized in that: A material receiving tray (15) is slidably inserted into the bottom surface of the discharge hopper (2), and a pull-out handle (16) is provided at one end of the material receiving tray (15).

6. A feeding device for coal washing according to claim 1, characterized in that: The four corners of the bottom surface of the supporting base plate (1) are each provided with moving wheels (17).

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