A rapid cleaning device for coal accumulation in a reclaimer boom grid

Abstract

The utility model relates to cantilever type material taking machine equipment technical field, and disclose a kind of material taking machine boom grating coal accumulation rapid cleaning device, including sliding material plate, the side of sliding material plate is provided with steel structure, the side of steel structure is provided with cleaning structure, the upper end of cleaning structure is also provided with blowing structure, grating structure is also provided on steel structure, coal material can fall from grating structure on cantilever conveyor belt and transport, when coal accumulation on grating structure is too much, start electric push rod, can promote coal baffle to move, and walking wheel can slide in track, coal accumulation is stacked to grating structure rear portion, and coal accumulation at dropping point is emptied, reduce the operation efficiency reduction due to coal accumulation at grating structure, reduce port operating cost, reduce the safety risk of clean coal personnel, reduce environmental pollution, reduce port operating cost, and cooperate with blowing structure and carry out air blowing to the coal accumulation adhered on grating ontology, can make it fall, and cleaning effect is good.

Description

Technical Field

[0001] This utility model relates to the technical field of cantilever reclaimer equipment, specifically a rapid coal cleaning device for the grid of a reclaimer boom. Background Technology

[0002] In coal unloading ports, cantilever reclaimers are high-efficiency equipment that uses boom conveyor belts for continuous loading operations. The bucket wheel rotates to pick up coal and slide it onto a sliding plate. The coal passes through a screen to remove large pieces of coal gangue, ironware, and other debris. The coal falls onto the suspended plate for processing, while the debris is stored on the screen. Once a certain amount of debris has accumulated, the screen is lifted by a hydraulic cylinder located at the end of the screen shaft to remove the debris.

[0003] For example, a conveyor belt protection device for a bucket wheel discharge chute of a reclaimer, disclosed in CN220549658U, belongs to the technical field of bucket wheel discharge chute equipment for reclaimers. It is used to remove large impurities mixed in with the coal retrieved by the bucket wheel, reducing damage to the conveyor belt. The technical solution is as follows: multiple grating plates are connected by connecting rods. The front end of each grating plate faces the inner surface of one side wall of the bucket wheel discharge chute. The rear ends of the multiple grating plates are welded to a rotating shaft via multiple rotating flaps. Both ends of the rotating shaft are connected to bearings in two bearing seats, which are respectively installed on the top surface of the bucket wheel discharge chute. The discharge hopper is located outside the rotating shaft. An electric push rod is installed between the back plate of the discharge hopper and the side wall of the bucket wheel discharge chute. This utility model has a simple structure and is easy to use. It can remove large, hard materials mixed in with the coal, preventing damage to the conveyor belt, reducing conveyor belt maintenance workload, improving the operating efficiency of the reclaimer, and reducing enterprise maintenance costs.

[0004] The aforementioned patent proposes that an electric push rod can drive a rotating shaft to rotate via a discharge hopper. The rotating shaft, through a rotating flap, causes the grid plate to flip, discharging large pieces of material from the grid plate through the discharge hopper to the outside of the cantilever conveyor belt, thus cleaning the material on the grid. However, during the operation of the reclaimer, some special coal types have high viscosity and are particularly wet. When passing through the grid discharge port, some coal will stick to the grid. As the reclaiming operation progresses, more and more coal accumulates on the grid, and the area becomes larger and larger. The grid filled with coal is heavy, exceeding the working capacity of the electric push rod, making it impossible to lift the grid for cleaning using the electric push rod, thus affecting the cleaning of the material on the grid.

[0005] Therefore, we propose a rapid coal cleaning device for the bar screen of a reclaimer boom to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a rapid coal cleaning device for the bar screen of a reclaimer arm, in order to solve the problem mentioned in the background art that some coal with high viscosity and particularly wet coal will stick to the bar screen when passing through the bar screen discharge port, affecting subsequent cleaning.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rapid coal cleaning device for a feeder boom grid, comprising a sliding plate and a cantilever conveyor belt disposed below the sliding plate. A steel structure is disposed on one side of the sliding plate, and a cleaning structure for cleaning coal accumulation is disposed on one side of the steel structure. A blowing structure is also disposed at the upper end of the cleaning structure, and a grid structure is also disposed on the steel structure. The blowing structure is used to blow high-pressure gas onto the grid structure, which can blow away the coal accumulation on the grid structure and, together with the cleaning structure, achieve the purpose of rapid cleaning. The cleaning structure includes a support frame set on the outside of the steel structure and a bearing seat set on the upper end of the support frame. An electric push rod is set on one side of the bearing seat, and bolts for fixing are set on the surface of the bearing seat. The telescopic end of the electric push rod is connected to a coal baffle plate for pushing the accumulated coal. A track is also set on the inside of the steel structure. Two sets of limit switches are set on one side of the track. A limit trigger stop is also set at the bottom of the coal baffle plate. The limit switches and the limit trigger stop are opposite to each other.

[0008] Preferably, the limit switch is model NCB40-FP-Z2, and the two sets of limit switches are placed on the track respectively.

[0009] Preferably, a bracket is fixedly installed on the side wall of the coal retaining plate, and a traveling wheel is provided on the inner side of the bracket. The traveling wheel is rotatably connected to the bracket and can slide in the track.

[0010] Preferably, the grid structure includes a mounting base on a steel structure and a shaft on one side of the mounting base. Several connecting frames are sleeved on the outer side of the shaft, and a grid body is provided on the inner side of the connecting frame. Screws are provided on the outer side of the connecting frame. Connecting rods are interspersed between the several grid bodies, and the several grid bodies and connecting rods form a rigid filter grid.

[0011] Preferably, the blowing structure includes a high-pressure pump installed on one side of the coal retaining plate and an air intake pipe connected to one end of the high-pressure pump. The other end of the high-pressure pump is connected to an air guide pipe, and the end of the air guide pipe away from the high-pressure pump is connected to an air jet pipe. An installation frame is fixedly installed on the upper end of the coal retaining plate, and the air jet pipe is placed inside the installation frame. Several high-pressure nozzles for air jetting are evenly distributed at the lower end of the air jet pipe. When the high-pressure pump is started, it can spray out under the action of the air intake pipe, air guide pipe, air jet pipe and high-pressure nozzles, which can blow the grid structure and facilitate the cleaning of accumulated coal.

[0012] Preferably, a filter screen is provided inside one end of the air intake tube for filtration.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. By using the set sliding plates, steel structures, grating structures, cleaning structures and cantilever conveyors, the cleaning structure can quickly clean and remove the coal accumulated on the grating structure during the operation of the reclaimer, reducing the time for cleaning the coal accumulated on the grating structure, avoiding safety risks during the cleaning process, and reducing port operating costs.

[0014] 2. The set blowing structure can blow air onto the grid body, which can remove the coal stuck to the grid body and further clean the grid structure, with good cleaning effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the blowing structure of this utility model; Figure 3 This is a three-dimensional structural diagram of the grille structure of this utility model; Figure 4 This is a three-dimensional structural diagram of the cleaning structure of this utility model.

[0016] In the diagram: 1. Sliding plate; 2. Steel structure; 3. Grating structure; 31. Mounting base; 32. Shaft; 33. Connecting frame; 34. Grating body; 35. Screw; 36. Connecting rod; 4. Cleaning structure; 41. Support frame; 42. Bearing seat; 421. Bolt; 43. Electric push rod; 44. Coal retaining plate; 441. Bracket; 442. Traveling wheel; 45. Track; 46. Limit switch; 47. Limit trigger stop; 5. Blowing structure; 51. High-pressure pump; 52. Suction pipe; 521. Filter screen; 53. Air guide pipe; 54. Air jet pipe; 55. High-pressure nozzle; 56. Mounting frame; 6. Cantilever conveyor belt. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: Please refer to Figure 1 , Figure 3 and Figure 4A rapid coal cleaning device for a reclaimer boom includes a sliding plate 1 and a cantilever conveyor belt 6 located below the sliding plate 1. A steel structure 2 is provided on one side of the sliding plate 1, and a cleaning structure 4 for cleaning coal accumulation is provided on one side of the steel structure 2. A blowing structure 5 is also provided at the upper end of the cleaning structure 4. A grid structure 3 is also provided on the steel structure 2. The blowing structure 5 is used to blow high-pressure gas onto the grid structure 3, which can blow away the coal accumulation adhering to the grid structure 3 and work with the cleaning structure 4 to achieve the purpose of rapid cleaning, reducing the time for cleaning coal accumulation on the grid structure 3, avoiding safety risks during the cleaning process of the grid structure 3, and reducing port operating costs. The cleaning structure 4 includes a support frame 41 set on the outside of the steel structure 2 and a bearing seat 42 set on the upper end of the support frame 41. An electric push rod 43 is set on one side of the bearing seat 42, and bolts 421 for fixing are set on the surface of the bearing seat 42. The telescopic end of the electric push rod 43 is connected to a coal baffle plate 44 for pushing the accumulated coal. A track 45 is also set on the inside of the steel structure 2. Two sets of limit switches 46 are set on one side of the track 45. A limit trigger stop 47 is also set at the bottom of the coal baffle plate 44. The limit switches 46 and the limit trigger stop 47 are opposite each other. When the coal baffle plate 44 pushes the accumulated coal to the designated position, the limit trigger stop 47 contacts the front limit switch 46, and the coal baffle plate 44 stops moving. After the coal cleaning is completed, the coal baffle plate 44 moves backward. When the limit trigger stop 47 contacts the rear limit switch 46, the backward movement stops.

[0019] The limit switch 46 is model NCB40-FP-Z2, and the two sets of limit switches 46 are respectively placed on the track 45.

[0020] A bracket 441 is fixedly installed on the side wall of the coal retaining plate 44. A traveling wheel 442 is provided on the inner side of the bracket 441. The traveling wheel 442 is rotatably connected to the bracket 441 and can slide in the track 45. One side of the coal retaining plate 44 is parallel to the material reclaimer sliding plate 1 and maintains a certain distance from the material reclaimer sliding plate 1.

[0021] The grid structure 3 includes a mounting base 31 set on the steel structure 2 and a shaft 32 set on one side of the mounting base 31. Several connecting frames 33 are sleeved on the outer side of the shaft 32. A grid body 34 is set on the inner side of the connecting frame 33. Screws 35 are set on the outer side of the connecting frame 33. Connecting rods 36 are inserted between the several grid bodies 34. The several grid bodies 34 and the connecting rods 36 form a rigid filter grid.

[0022] In this embodiment: when too much coal accumulates on the grid structure 3, the electric push rod 43 is activated, which can push the coal blocking plate 44 to move, and the traveling wheel 442 can slide in the track 45 to pile the accumulated coal to the rear of the grid structure 3 and clear the accumulated coal at the drop point. When the coal blocking plate 44 pushes the accumulated coal to the designated position, the limit triggering iron 47 contacts the front limit switch 46, and the coal blocking plate 44 stops moving. After the coal clearing is completed, the coal blocking plate 44 moves backward. When the limit triggering iron 47 contacts the rear limit switch 46, the backward movement stops. This reduces the reduction in work efficiency caused by coal accumulation at the grid structure 3, reduces port operating costs, reduces the safety risks of coal clearing personnel, reduces environmental pollution, and lowers port operating costs.

[0023] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 2 The blowing structure 5 includes a high-pressure pump 51 installed on one side of the coal retaining plate 44 and an air intake pipe 52 connected to one end of the high-pressure pump 51. The other end of the high-pressure pump 51 is connected to an air guide pipe 53. The end of the air guide pipe 53 away from the high-pressure pump 51 is connected to an air jet pipe 54. An installation frame 56 is fixedly installed on the upper end of the coal retaining plate 44. The air jet pipe 54 is placed inside the installation frame 56. Several high-pressure nozzles 55 for air jetting are evenly distributed at the lower end of the air jet pipe 54. When the high-pressure pump 51 is started, it can spray out under the action of the air intake pipe 52, the air guide pipe 53, the air jet pipe 54 and the high-pressure nozzles 55, which can blow out the grid structure 3 and facilitate the cleaning of accumulated coal.

[0024] A filter 521 is installed inside one end of the suction pipe 52. The filter 521 is used for filtration to prevent dust from entering the suction pipe 52.

[0025] In this embodiment: During the process of cleaning up the accumulated coal, the high-pressure pump 51 can be started, the suction pipe 52 can be used to draw air, and the filter screen 521 can be used to filter the air to prevent dust from entering the suction pipe 52. Then, under the action of the air guide pipe 53, the air jet pipe 54 and the high-pressure nozzle 55, high-pressure gas is sprayed out, which can spray air onto the grid structure 3, causing the accumulated coal stuck on the grid body 34 to fall off, which is conducive to cleaning.

[0026] Working principle: When too much coal accumulates on the grid structure 3, the electric push rod 43 is activated, which can push the coal blocking plate 44 to move. The traveling wheel 442 can slide in the track 45, piling the coal to the rear of the grid structure 3 and clearing the coal at the drop point. When the coal blocking plate 44 pushes the coal to the designated position, the limit trigger 47 contacts the front limit switch 46, and the coal blocking plate 44 stops moving. After the coal cleaning is completed, the coal blocking plate 44 moves backward. When the limit trigger 47 contacts the rear limit switch 46, it stops moving backward. During the process of cleaning the coal, the high-pressure pump 51 can be activated, and the suction pipe 52 is used to draw air and the filter screen 521 is used to filter the air to prevent dust from entering the suction pipe 52. Then, under the action of the air guide pipe 53, the air jet pipe 54 and the high-pressure nozzle 55, high-pressure gas is sprayed out, which can spray air onto the grid structure 3, causing the coal stuck to the grid body 34 to fall off.

[0027] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid coal cleaning device for a feeder boom grid, comprising a sliding plate (1) and a cantilever conveyor belt (6) disposed below the sliding plate (1), wherein a steel structure (2) is provided on one side of the sliding plate (1), and a cleaning structure (4) for cleaning coal accumulation is provided on one side of the steel structure (2), characterized in that: The upper end of the cleaning structure (4) is also provided with a blowing structure (5), and the steel structure (2) is also provided with a grid structure (3). The blowing structure (5) is used to blow high-pressure gas onto the grid structure (3). The cleaning structure (4) includes a support frame (41) set on the outside of the steel structure (2) and a bearing seat (42) set on the upper end of the support frame (41). An electric push rod (43) is set on one side of the bearing seat (42), and a bolt (421) for fixing is set on the surface of the bearing seat (42). The telescopic end of the electric push rod (43) is connected to a coal baffle plate (44) for pushing the coal accumulation. A track (45) is also set on the inner side of the steel structure (2). Two sets of limit switches (46) are set on one side of the track (45). A limit trigger stop (47) is also set at the bottom of the coal baffle plate (44). The limit switches (46) and the limit trigger stop (47) are opposite to each other.

2. The rapid coal cleaning device for the boom grid of a reclaimer according to claim 1, characterized in that: The limit switch (46) is model NCB40-FP-Z2, and the two sets of limit switches (46) are placed on the track (45) respectively.

3. The rapid coal cleaning device for the boom grid of a reclaimer according to claim 2, characterized in that: A bracket (441) is fixedly installed on the side wall of the coal retaining plate (44), and a traveling wheel (442) is provided on the inner side of the bracket (441). The traveling wheel (442) is rotatably connected to the bracket (441).

4. The rapid coal cleaning device for the bar screen of a reclaimer boom according to claim 3, characterized in that: The grid structure (3) includes a mounting base (31) on the steel structure (2) and a shaft (32) on one side of the mounting base (31). Several connecting frames (33) are sleeved on the outside of the shaft (32). A grid body (34) is provided on the inside of the connecting frame (33). Screws (35) are provided on the outside of the connecting frame (33). Connecting rods (36) are inserted between the several grid bodies (34).

5. A rapid coal cleaning device for the boom grid of a reclaimer according to claim 4, characterized in that: The blowing structure (5) includes a high-pressure pump (51) installed on one side of the coal retaining plate (44) and an air intake pipe (52) connected to one end of the high-pressure pump (51). The other end of the high-pressure pump (51) is connected to an air guide pipe (53). The end of the air guide pipe (53) away from the high-pressure pump (51) is connected to an air jet pipe (54). An installation frame (56) is fixedly installed on the upper end of the coal retaining plate (44). The air jet pipe (54) is placed inside the installation frame (56). Several high-pressure nozzles (55) for air jetting are evenly distributed at the lower end of the air jet pipe (54).

6. A rapid coal cleaning device for the boom grid of a reclaimer according to claim 5, characterized in that: A filter screen (521) is provided inside one end of the air intake pipe (52).

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