Coal dust recovery equipment in raw coal washing process

Abstract

The utility model discloses coal dust recovery equipment in a raw coal washing process, and relates to the technical field of coal dust recovery, the coal dust recovery equipment is technically characterized by comprising a dust collection assembly and a filter assembly, the dust collection assembly comprises a dust collection cover, the top of the dust collection cover is fixedly connected with a dust collection pipe, the dust collection pipe is connected with a first connecting pipe through a first three-way pipe, and the first connecting pipe is connected with a second connecting pipe through a second three-way pipe; one end of the first connecting pipe is fixedly connected with a dust suction box, one end of the dust suction box is fixedly connected with second connecting pipes, the two second connecting pipes are connected with a bag-type dust remover through a second three-way pipe, and a fan is detachably installed in the dust suction box. The filter assembly comprises a filter screen installed in the dust collection box in a sliding mode and a beating assembly used for cleaning the filter screen. The dust collection device has the technical effects that by arranging the filtering assembly, coal briquettes entering the dust collection box can be intercepted and filtered, the coal briquettes are prevented from entering the fan to abrade fan blades, the service life of the fan is prolonged, and then the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal dust recovery technical field, specifically is a coal dust recovery equipment in raw coal washing process. BACKGROUND

[0002] Coal mine is the area that human in rich coal mining area exploits coal resources, generally divided into underground coal mine and open coal mine, when coal seam is far from the surface, generally selects to excavate the roadway in the ground and mines coal, this is underground coal mine, when the distance of coal seam from the surface is very close, generally selects directly stripping surface soil and excavates coal, this is open coal mine, the vast majority of coal mines in China belong to underground coal mine, when coal mine is in the process of washing and selecting, a large amount of coal dust is produced, which needs to be recovered by coal dust recovery equipment.

[0003] The existing patent with the announcement number CN217550715U discloses a coal dust recovery equipment in raw coal washing process, the device includes an exhaust pipe, a connecting cover and a connecting mechanism, the exhaust pipe penetrates the middle part of the top end face of the connecting cover, and the exhaust pipe is arranged outside the bag-type dust collector, the connecting mechanism is arranged on the right side of the exhaust pipe, the connecting mechanism includes a fixed plate, a sliding frame, a transmission mechanism, an opening, a shell, a guide cover, a connecting pipe, a fan and a sealing mechanism, the fixed plate is installed on the front end face of the shell, the sliding frame is slidingly installed on the top end face of the fixed plate and the inside bottom of the opening, the transmission mechanism is arranged on the bottom of the sliding frame, the opening is formed on the front end face of the shell, and the inside bottom end face of the opening is connected to the top end face of the fixed plate, the guide cover is arranged on the inside left and right ends of the shell, and the inside left end of the shell is connected to the right end outside of the exhaust pipe, the connecting pipe is inserted into the inside of the right guide cover, and the connecting pipe is connected to the input end of the bag-type dust collector, the fan is locked in the inside of the sliding frame, and the sealing mechanism is arranged on the outside of the sliding frame.

[0004] For the related technology in the above, the inventors find that at least the following problem exists in the technology: although the above technology can rotate cleaning for two fans, since the coal dust usually carries coal blocks with large volume, after the coal blocks beat the fan blades for a long time, the blades are easily worn seriously, which affects the service life of the fan and increases the maintenance cost.

[0005] Therefore, we propose a coal dust recovery equipment in raw coal washing process. Utility model content

[0006] (1) technical problem solved

[0007] In view of the defects of the prior art, the utility model provides a coal dust recovery equipment in raw coal washing process, which solves the problem that the coal dust usually carries coal blocks with large volume, the coal blocks beat the fan blades for a long time, the blades are easily worn seriously, which affects the service life of the fan and increases the maintenance cost.

[0008] (ii) Technical Solution

[0009] To achieve the above object, the utility model provides the following technical scheme: a coal dust recovery equipment in raw coal washing process, including dust suction subassembly and filter component, the dust suction subassembly includes dust suction cover, the top of dust suction cover is fixedly connected with dust suction pipe, one end of dust suction pipe is fixedly connected with first three -way pipe, both ends of first three -way pipe are fixedly connected with first connecting pipe, one end of first connecting pipe is fixedly connected with dust suction box, one end of dust suction box is fixedly connected with second connecting pipe, one end of two second connecting pipes is connected with second three -way pipe in common, the other end of second three -way pipe is connected with cloth bag dust collector, the inside of dust suction box is detachably installed with fan, and the end of first connecting pipe and second connecting pipe close to dust suction box is installed with first valve in common.

[0010] The filter component includes a filter screen slidably installed in the dust suction box and a knocking assembly for cleaning the filter screen.

[0011] Preferably, the knocking assembly includes a motor fixedly installed on the top of the dust suction box, and an output end of the motor extends into the dust suction box and is fixedly connected with a cam.

[0012] Preferably, limit rods are slidably installed at four corners of the filter screen, both ends of each limit rod are fixedly connected with the inner wall of the dust suction box, a spring is sleeved with one end of each limit rod away from the knocking assembly, and one end of each spring abuts against the filter screen.

[0013] Preferably, a box door is hingedly connected to one side of the dust suction box, and a hasp is arranged at the upper end of the box door.

[0014] Preferably, a sealing strip is fixedly connected to the edge of the inner side of the box door.

[0015] Preferably, a collecting pipe is fixedly connected to the bottom of the dust suction box, and a second valve is arranged on the collecting pipe.

[0016] Preferably, T-shaped sliding grooves are arranged on both sides of the fan, and T-shaped sliding blocks are arranged on the inner wall of the dust suction box in sliding cooperation with the T-shaped sliding grooves.

[0017] Preferably, a positioning screw rod for locking the fan is threadedly connected to the top of the dust suction box.

[0018] (iii) Advantages

[0019] Compared with the prior art, the utility model provides a kind of, with following beneficial effects:

[0020] 1. The utility model discloses a filter assembly is set, when the fan works, the filter screen can intercept and filter the coal block that enters the dust collection box, avoids the coal block to enter the fan to cause the abrasion to the fan blade, prolongs the service life of fan, and then reduces the maintenance cost.

[0021] 2. The utility model discloses a knock component is set, in the working process, can start motor and drive cam rotation, make the cam unceasingly knock the filter screen, make the filter screen slide along the limiting rod, compress spring, utilize spring elasticity and rebound to the filter screen to shake the filter screen, the coal block that is adsorbed on the filter screen is shaken off, avoids the coal block and blocks the filter screen, guarantees work efficiency. DRAWINGS

[0022] Figure 1 It is the whole structure schematic diagram of the utility model;

[0023] Figure 2 It is the structure schematic diagram of dust collection subassembly of the utility model;

[0024] Figure 3 It is the internal structure schematic diagram of dust collection box of the utility model;

[0025] Figure 4 It is the utility model Figure 3 The structure enlarged view of A place in the utility model.

[0026] In the drawing:

[0027] 1, dust collection subassembly;11, dust collection cover;12, dust collection pipe;13, first three-way pipe;14, first connecting pipe;15, dust collection box;16, second connecting pipe;17, second three-way pipe;18, cloth bag dust collector;19, fan;110, first valve;111, box door;112, hasp;113, collection pipe;114, second valve;115, T type sliding slot;116, T type sliding block;117, positioning screw rod;

[0028] 2, filter assembly;21, filter screen;22, knock component;221, motor;222, cam;23, limiting rod;24, spring. DETAILED DESCRIPTION

[0029] In the utility model, under the condition that no opposite statement is made, the orientation such as "up, down" is usually for the direction shown in the drawing or for the vertical, perpendicular or gravity direction;Similarly, for the convenience of understanding and description, "left, right" is usually for the left and right shown in the drawing;"inner, outer" refers to the inner and outer of the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0030] The utility model provides a technical scheme:

[0031] Please refer toFigures 1-4 The utility model provides a coal dust recovery equipment in raw coal washing process, including dust absorption component 1 and filter component 2, dust absorption component 1 includes dust absorption cover 11, the top of dust absorption cover 11 is fixedly connected with dust absorption pipe 12, one end of dust absorption pipe 12 is fixedly connected with first tee pipe 13, and both ends of first tee pipe 13 are fixedly connected with first connecting pipe 14, and one end of first connecting pipe 14 is fixedly connected with dust absorption box 15, and one end of dust absorption box 15 is fixedly connected with second connecting pipe 16, and the one end of two second connecting pipes 16 is jointly connected with second tee pipe 17, and the other end of second tee pipe 17 is connected with cloth bag dust collector 18, and the inside of dust absorption box 15 is detachably installed with fan 19, and the one end of first connecting pipe 14 and second connecting pipe 16 close to dust absorption box 15 is installed with first valve 110, by setting dust absorption component 1, when coal dust recovery, can start fan 19 and make coal dust in raw coal washing process into dust absorption cover 11, after dust absorption pipe 12, enter cloth bag dust collector 18 and filter collection, when needing to maintain fan 19, can close the first valve 110 of dust absorption box 15 on both sides needing to maintain, then can maintain fan 19, and the fan 19 of another dust absorption box 15 normally works, to make the equipment keep normal operation.

[0032] Referring to Figure 3 And Figure 4 Filter component 2 includes filter screen 21 slidably installed in dust absorption box 15 and knocking assembly 22 for cleaning filter screen 21, filter screen 21 is arranged at the upstream of fan 19, by setting filter component 2, when fan 19 works, filter screen 21 can intercept and filter the coal block entering dust absorption box 15, avoid the coal block to enter fan 19 and cause the abrasion of fan blade, prolong the service life of fan 19, to reduce the maintenance cost in turn.

[0033] Specifically, knocking assembly 22 is arranged between filter screen 21 and fan 19, and knocking assembly 22 includes motor 221 fixedly installed at the top of dust absorption box 15, the output end of motor 221 extends into dust absorption box 15 and is fixedly connected with cam 222, limit rod 23 is slidably installed at the four corners of filter screen 21, both ends of limit rod 23 are fixedly connected with the inner wall of dust absorption box 15, one end of limit rod 23 away from knocking assembly 22 is sleeved with spring 24, one end of spring 24 abuts against filter screen 21, by setting knocking assembly 22, in the working process, motor 221 can be started to drive cam 222 to rotate, so that cam 222 constantly knocks filter screen 21, makes filter screen 21 slide along limit rod 23, and spring 24 is compressed, and then the rebound of filter screen 21 is carried out by using the elastic force of spring 24, so that the shaking of filter screen 21 is realized, the coal block adhered to filter screen 21 is shaken off, the coal block is prevented from blocking filter screen 21, and the working efficiency is ensured.

[0034] Furthermore, a door 111 is hinged to one side of the dust collection box 15. A latch 112 is provided at the upper end of the door 111, and a sealing strip is fixedly connected to the inner edge of the door 111. By providing the door 111 and the latch 112, it is convenient to maintain the inside of the dust collection box 15.

[0035] Furthermore, a collection pipe 113 is fixedly connected to the bottom of the dust collection box 15, and a second valve 114 is installed on the collection pipe 113. By setting up the collection pipe 113 and the second valve 114, the second valve 114 can be opened during maintenance to discharge the coal blocks collected in the dust collection box 15 from the collection pipe 113, so as to collect the coal blocks in a concentrated manner.

[0036] Furthermore, T-shaped grooves 115 are provided on both sides of the fan 19, and T-shaped sliders 116 are provided on the inner wall of the dust collection box 15 to slide in cooperation with the T-shaped grooves 115. By providing T-shaped grooves 115 and T-shaped sliders 116, it is convenient to remove the fan 19 from the dust collection box 15.

[0037] Furthermore, the top of the dust collection box 15 is threaded with a positioning screw 117 for locking the fan 19. By setting the positioning screw 117, the fan 19 can be fixed.

[0038] In practical use, the working principle of this utility model is as follows:

[0039] First, during coal dust recovery, the blower 19 can be started to suck the coal dust from the raw coal washing process into the dust collection hood 11. After passing through the dust collection pipe 12, it enters the bag filter 18 for filtration and collection. When the blower 19 is working, the filter screen 21 can intercept and filter the coal lumps entering the dust collection box 15, preventing the coal lumps from entering the blower 19 and causing wear on the fan blades, extending the service life of the blower 19, and thus reducing maintenance costs.

[0040] When maintenance of the blower 19 is required, the first valves 110 on both sides of the dust collection box 15 that needs maintenance can be closed, and then the latch 112 can be loosened to open the box door 111. The blower 19 can be taken out of the dust collection box 15 through the cooperation of the T-shaped slide 115 and the T-shaped slider 116. The blower 19 can be maintained, while the blower 19 of the other dust collection box 15 works normally, thus keeping the equipment running normally.

[0041] In addition, during maintenance, the second valve 114 can be opened to discharge the coal blocks collected in the dust collection box 15 from the collection pipe 113 for centralized collection of the coal blocks.

[0042] To prevent coal from clogging the filter screen 21, a striking component 22 is provided. During operation, the motor 221 can be started to drive the cam 222 to rotate, so that the cam 222 continuously strikes the filter screen 21, causing the filter screen 21 to slide along the limit rod 23, compressing the spring 24, and then using the elastic force of the spring 24 to rebound the filter screen 21, thereby shaking the filter screen 21 and shaking off the coal adsorbed on the filter screen 21.

[0043] In summary, the coal dust recovery equipment in the raw coal washing process, by setting up the filter component 2, can intercept and filter the coal blocks entering the dust collection box 15, prevent the coal blocks from entering the fan 19 and causing wear on the fan blades, extend the service life of the fan 19, and thus reduce maintenance costs.

[0044] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A coal dust recovery device in the raw coal washing process, comprising a dust collection component (1) and a filter component (2), characterized in that: The vacuum assembly (1) includes a vacuum hood (11), a vacuum pipe (12) is fixedly connected to the top of the vacuum hood (11), a first three-way pipe (13) is fixedly connected to one end of the vacuum pipe (12), a first connecting pipe (14) is fixedly connected to both ends of the first three-way pipe (13), a vacuum box (15) is fixedly connected to one end of the first connecting pipe (14), a second connecting pipe (16) is fixedly connected to one end of the vacuum box (15), a second three-way pipe (17) is connected to one end of both second connecting pipes (16), a bag filter (18) is connected to the other end of the second three-way pipe (17), a fan (19) is detachably installed inside the vacuum box (15), and a first valve (110) is installed at the end of the first connecting pipe (14) and the second connecting pipe (16) near the vacuum box (15). The filter assembly (2) includes a filter screen (21) slidably mounted in a dust collection box (15) and a tapping assembly (22) for cleaning the filter screen (21). The filter screen (21) is located upstream of the fan (19), and the tapping assembly (22) is located between the filter screen (21) and the fan (19).

2. The coal dust recovery equipment in the raw coal washing process according to claim 1, characterized in that: The striking assembly (22) includes a motor (221) fixedly mounted on the top of the dust collection box (15), the output end of which extends into the dust collection box (15) and is fixedly connected to a cam (222).

3. The coal dust recovery equipment in the raw coal washing process according to claim 2, characterized in that: Limiting rods (23) are slidably installed at the four corners of the filter (21). Both ends of the limiting rods (23) are fixedly connected to the inner wall of the dust collection box (15). A spring (24) is sleeved on the end of the limiting rod (23) away from the striking component (22). One end of the spring (24) abuts against the filter (21).

4. The coal dust recovery equipment in the raw coal washing process according to claim 1, characterized in that: The dust collection box (15) has a door (111) hinged to one side, and a buckle (112) is provided at the upper end of the door (111).

5. The coal dust recovery equipment in the raw coal washing process according to claim 4, characterized in that: A sealing strip is fixedly connected to the inner edge of the box door (111).

6. The coal dust recovery equipment in the raw coal washing process according to claim 1, characterized in that: The bottom of the dust collection box (15) is fixedly connected to a collection pipe (113), and a second valve (114) is installed on the collection pipe (113).

7. The coal dust recovery equipment in the raw coal washing process according to claim 1, characterized in that: The fan (19) has T-shaped grooves (115) on both sides, and the dust collection box (15) has T-shaped sliders (116) that slide in cooperation with the T-shaped grooves (115) on the inner wall.

8. The coal dust recovery equipment in the raw coal washing process according to claim 1, characterized in that: The top of the dust collection box (15) is threaded with a positioning screw (117) for locking the fan (19).

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