CN220461333U - Screen cleaning device of fluidized bed dry coal separator - Google Patents

Abstract

The utility model discloses a screen cleaning device of a fluidized bed dry coal separator, which comprises a cam vibration assembly, a roller pass ejection assembly and four limiting blocks, wherein the screen comprises a frame body, a screen body is arranged between the inner walls of the frame body, grooves are formed in two ends of the two side surfaces of the frame body, the cam vibration assembly is arranged above the frame body, second sliding grooves are formed in two sides of the bottom surface of the frame body, and the roller pass ejection assembly is slidably arranged in the two second sliding grooves.

Description

Screen cleaning device of fluidized bed dry coal separator

Technical Field

The utility model relates to the field of fluidized beds, in particular to a screen cleaning device of a fluidized bed dry coal separator.

Background

Fluidized bed, for short fluidized bed, is a reactor that utilizes gas or liquid to make solid particle be in suspension motion state through granular solid layer to carry out gas-solid phase reaction process or liquid-solid phase reaction process, including bulk fluidized bed, gather fluidized bed (bubbling bed, turbulent bed, fast bed), for some small-size production and some experiments in laboratory, the diameter of fluidized bed is less and fluidized bed bottom adopts the screen cloth, the gas appears easily in the operation and drives the bulk material to wholly upwards move and then wholly descend, form slugging phenomenon and have influenced the operating efficiency greatly, especially for some materials that the granule is tiny and viscidity is big, therefore it is proposed to use the guide plate and reduce the air inlet area to strengthen the circulation of material in the fluidized bed inside, the material maldistribution appears easily in the contact department of guide plate and screen cloth in the application process, this application number: CN201820095844.2 discloses a fluidized bed, comprising a fluidized bed body, the lower part of the fluidized bed body is provided with an air inlet, the upper part of the fluidized bed body is provided with an air outlet, a screen and a deflector are arranged in the fluidized bed body, the inner edge of one side of the screen is connected with the inner wall of the fluidized bed body, the other side of the screen is connected with the deflector, the screen is horizontally arranged, the deflector is connected with the inner edge of the screen and the inner wall of the fluidized bed body, the deflector is obliquely arranged, a discharge hole is formed in the wall surface of the fluidized bed body, the discharge hole is positioned above the screen, and a lateral air inlet is formed in the deflector.

However, the above scheme still has certain defects, and the inventor finds that the fluidized bed dry coal separator separates and screens clean coal and gangue in raw coal based on the working principle of a fluidized bed, the gangue in the raw coal can sink due to self gravity, the clean coal floats upwards, if the scheme is adopted to fixedly connect a screen on the inner wall of the fluidized bed, the gangue can slowly sink and pile on the screen, the trafficability of the screen is affected by slowly covering the screen, the rate of passing air through an air inlet is reduced, and the gangue can be blocked in a filter hole of the screen, so that the trafficability of the screen is also affected.

How to invent a screen cleaning device of a fluidized bed dry coal separator to improve the problems becomes a problem to be solved urgently by the person skilled in the art.

Disclosure of Invention

In order to make up the defects, the utility model provides a screen cleaning device of a fluidized bed dry coal separator, which aims to improve the problems that the fluidized bed dry coal separator separates and screens clean coal and gangue in raw coal based on the working principle of a fluidized bed, the gangue in the raw coal can sink due to self gravity, the clean coal floats upwards, the screen is fixedly connected to the inner wall of the fluidized bed, the gangue can slowly sink and accumulate on the screen, the trafficability of the screen is affected due to the slow coverage of the screen, the passing rate of air entering from an air inlet is reduced, the gangue can be blocked in a filter hole of the screen, and the trafficability of the screen is also affected.

The utility model is realized in the following way: the utility model provides a fluidized bed dry coal separator's screen cloth cleaning device for clear up the inside screen cloth that sets up of fluidized bed dry coal separator main part, including cam vibration subassembly, roller lead to ejecting subassembly and four stopper, the screen cloth includes the framework, be provided with the dictyosome between the framework inner wall, the recess has been seted up at the both ends of framework both sides surface, every the stopper sets up on fluidized bed dry coal separator main part both sides inner wall and is located corresponding recess, every the stopper includes the block, every the block is provided with first spout towards one side surface of framework, every be provided with first slider in the recess, every first slider slidable mounting is in corresponding first spout, every first spout bottom inner wall fixed mounting has the one end of spring, every spring other end fixed mounting is in corresponding first slider bottom surface, cam vibration subassembly sets up in the framework top, framework bottom surface both sides are provided with the second spout, two slidable mounting has roller to lead to ejecting subassembly in the second spout.

In a preferred technical scheme of the utility model, the cam vibration assembly comprises a first motor, the first motor is fixedly arranged on a motor mounting plate, the motor mounting plate is fixedly arranged on one side surface of a main body of the fluidized bed dry coal separator, one end of an output shaft of the first motor extends into the main body of the fluidized bed dry coal separator through a through hole and is fixedly connected with one end of a first rotating shaft, the other end of the first rotating shaft is rotatably arranged on the inner wall of one side of the main body of the fluidized bed dry coal separator, and cams are fixedly sleeved at corresponding positions of two ends of the first rotating shaft on the upper surfaces of two sides of the frame body.

In a preferred technical scheme of the utility model, the first motor output shaft is fixedly sleeved with a first sprocket wheel on the outer part of the main body of the fluidized bed dry coal separator, the first sprocket wheel is sleeved with a chain and is connected with a second sprocket wheel through chain transmission, the second sprocket wheel is fixedly sleeved at one end of a second rotating shaft, the other end of the second rotating shaft is rotatably arranged on the inner wall of one side of the main body of the fluidized bed dry coal separator by extending into the main body of the fluidized bed dry coal separator, and two ends of the second rotating shaft positioned in the main body of the fluidized bed dry coal separator are fixedly sleeved with cams at corresponding positions on the upper surfaces of two sides of the frame body.

In a preferred embodiment of the present utility model, the second rotating shaft is horizontally disposed at one side of the first rotating shaft, and the size, shape and protruding direction of the four cams are all consistent.

In a preferred technical scheme of the utility model, the roller ejecting assembly comprises two second sliding blocks, the two second sliding blocks are respectively and slidably arranged in second sliding grooves on one side, a roller is rotatably arranged between the opposite side surfaces of the two second sliding blocks, a plurality of groups of lugs which are uniformly distributed in a rectangular shape are arranged on the outer wall of the roller, each group of lugs is linearly distributed, the position distribution and the distance between the lug position distribution and the lug position distribution are in one-to-one adaptation with the filtering holes of the net body, one end surface of one second sliding block is provided with a threaded hole which penetrates through and is meshed with the threaded hole to be arranged on the screw rod, one end of the screw rod is rotatably arranged on one side surface of one mounting plate, the other end of the screw rod is fixedly connected with one end of an output shaft of a second motor, the second motor is fixedly arranged on one side surface of the other mounting plate, and the two mounting plates are arranged at two ends of one side surface of the bottom of the frame body.

In a preferred technical scheme of the utility model, the roller and the protruding blocks are made of rubber materials.

In a preferred embodiment of the present utility model, each of the protrusions has a shape that is adapted to the mesh openings and is smaller than the size of the openings, and each of the protrusions has a height that extends from the bottom of the mesh to above the mesh through the openings.

In a preferred embodiment of the utility model, the number of the plurality of sets of lugs distributed in a ring shape is at least three.

The beneficial effects of the utility model are as follows: according to the screen cleaning device of the fluidized bed dry coal separator, which is obtained through the design, when the screen cleaning device is used, the screen vibrates up and down in a reciprocating manner through the cam vibration assembly, so that gangue in raw coal is not accumulated on the screen body all the time, the trafficability of the screen can be relatively improved, each row of filter holes of the screen body can be sequentially ejected and cleaned through the roller ejection assembly, sundries such as gangue clamped in the filter holes are ejected out of the filter holes, the trafficability of the screen is further ensured, and the coal separation efficiency of the main body of the fluidized bed dry coal separator is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the overall structure provided by an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of an overall cross-sectional structure provided by an embodiment of the present utility model;

FIG. 3 is a schematic perspective view of the whole structure of a screen provided by an embodiment of the utility model;

fig. 4 is a schematic perspective view of the whole structure of a limiting block according to an embodiment of the present utility model;

FIG. 5 is a schematic perspective view of the overall structure of a cam vibration assembly according to an embodiment of the present utility model;

fig. 6 is a schematic perspective view of the overall structure of a roller ejecting assembly according to an embodiment of the present utility model;

fig. 7 is a schematic perspective view of the overall structure of the other side roller ejecting assembly according to the embodiment of the present utility model;

fig. 8 is a schematic perspective view of the overall structure of the other side roller ejecting assembly according to the embodiment of the utility model.

In the figure: 1-a fluidized bed dry coal separator main body; 2-screening; 3-cam shake assembly; 4-a roller ejection assembly; 5-limiting blocks; 6-a motor mounting plate; 201-a frame; 202-a net body; 203-grooves; 204-a first slider; 205-a second chute; 301-a first motor; 302-a first rotation axis; 303-cam; 304-a first sprocket; 305-chain; 306-a second sprocket; 307-a second spindle; 401-a second slider; 402-rollers; 403-bump; 404-screw rod; 405-mounting plates; 406-a second motor; 501-block; 502-a first chute; 503-spring.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Referring to fig. 1 to 8, the present utility model provides a technical solution: the utility model provides a fluidized bed dry coal separator's screen cloth cleaning device for clear up the inside screen cloth 2 that sets up of fluidized bed dry coal separator main part 1, including cam vibration subassembly 3, roller is led to ejecting subassembly 4 and four stopper 5, screen cloth 2 includes framework 201, be provided with the dictyosome 202 between the framework 201 inner wall, recess 203 has been seted up at the both ends of framework 201 both sides surface, every stopper 5 sets up on fluidized bed dry coal separator main part 1 both sides inner wall and is located corresponding recess 203, every stopper 5 includes block 501, every block 501 is provided with first spout 502 towards one side surface of framework 201, be provided with first slider 204 in every recess 203, every first slider 204 slidable mounting is in corresponding first spout 502, every first spout 502 bottom inner wall fixed mounting has the one end of spring 503, every spring 503 other end fixed mounting is in corresponding first slider 204 bottom surface, cam vibration subassembly 3 sets up in framework 201 top, framework 201 bottom surface both sides are provided with second spout 205, slidable mounting roller is led to ejecting subassembly 4 in two second spouts 205.

Referring to fig. 5, the cam vibration assembly 3 includes a first motor 301, the first motor 301 is fixedly mounted on a motor mounting plate 6, the motor mounting plate 6 is fixedly mounted on one side surface of a main body 1 of the fluidized bed dry coal separator, one end of an output shaft of the first motor 301 extends into the main body 1 of the fluidized bed dry coal separator through a through hole and is fixedly connected with one end of a first rotating shaft 302, the other end of the first rotating shaft 302 is rotatably mounted on one side inner wall of the main body 1 of the fluidized bed dry coal separator, cams 303 are fixedly sleeved on two corresponding positions of two ends of the first rotating shaft 302 on two sides of the frame 201, when the first motor 301 is started to drive the first rotating shaft 302 to rotate, two cams 303 fixedly sleeved on the first rotating shaft 302 also follow rotation, when protruding parts of the cams 303 contact two sides of the upper surface of the frame 201, the frame 201 is pressed down, and when the protruding parts of the cams 303 are separated from the surface of the frame 201, the frame 201 is sprung up again under the action of a spring 503, so that vibration of the frame 201 is made, the net 202 can be displayed on the surface of the net 202, and the net 202 can be filtered, and the net 202 can be kept still, and the net 202 can be blocked up in a relatively, and the net 202 can be accumulated in the net can be guaranteed.

Further, the first sprocket 304 is fixedly sleeved on the outer part of the fluidized bed dry coal separator main body 1 by the output shaft of the first motor 301, the first sprocket 304 is sleeved with the chain 305 and is connected with the second sprocket 306 through the transmission of the chain 305, the second sprocket 306 is fixedly sleeved at one end of the second rotating shaft 307, the other end of the second rotating shaft 307 is rotatably installed on the inner wall of one side of the fluidized bed dry coal separator main body 1 by extending into the fluidized bed dry coal separator main body 1, the two ends of the second rotating shaft 307 positioned in the fluidized bed dry coal separator main body 1 are fixedly sleeved with the cams 303 at the corresponding positions of the upper surfaces of the two sides of the frame 201, the four cams 303 are horizontally rectangular, the first sprocket 304 is driven to rotate by the first sprocket 302 when the first motor 301 drives the first rotating shaft 302, and the second sprocket 306 is driven to rotate by the transmission of the chain 305, so that the second rotating shaft 307 and the first rotating shaft 302 synchronously rotate in the same direction, the four cams support the frame 201 in the same ratio, and the stability of the vibration of the frame 201 is improved.

Further, the second rotating shaft 307 is horizontally disposed on one side of the first rotating shaft 302, and the sizes and shapes of the four cams 303 are consistent with the protruding directions, so that the four cams 303 can rotate synchronously, and the protruding parts of the four cams can synchronously push and press the upper surface of the frame 201.

Referring to fig. 6 to 8, the roller ejecting assembly 4 includes two second sliders 401, the two second sliders 401 are respectively slidably mounted in the second sliding grooves 205 on the corresponding sides, rollers 402 are rotatably mounted between the opposite side surfaces of the two second sliders 401, a plurality of groups of protrusions 403 which are uniformly distributed in a rectangular shape are arranged on the outer wall of the rollers 402, each group of the plurality of protrusions 403 is linearly distributed, the positions of the plurality of protrusions 403 of each group are matched with the filter holes of the screen 202 one by one, threaded holes penetrating through the holes are formed in one surface of one second slider 401 and are engaged with the filter holes of the screen 202, one end of the screw 404 is rotatably mounted on one side surface of a mounting plate 405, the other end of the screw 404 is fixedly connected with one end of an output shaft of a second motor 406, the second motor 406 is fixedly mounted on one side surface of the other mounting plate 405, the two mounting plates 405 are arranged at two ends of the bottom side surface of the frame 201, when the second motor 406 is started to drive the screw 404 to rotate, one second slider 401 which is engaged with the screw 404 to perform independent displacement of the corresponding 2 on the screw 404, thereby driving the protrusions 403 to move synchronously with the filter holes of the screen 202 in the corresponding to the filter holes of the screen 202, and the screen 202 is prevented from being sequentially inserted into the filter holes 202 by one side of the filter holes of the screen 202 when the filter body is driven by one side of the filter body, and the filter body is inserted into the filter holes 202 in the filter holes.

Further, the roller 402 and the protruding blocks 403 are made of rubber, so that the manufacturing cost is low, the forming is easy, the use cost is reduced, the rubber has a certain deformability, and the screen 2 is not damaged while the working smoothness of the roller through ejection assembly 4 is relatively guaranteed.

Further, the shape of each protruding block 403 is adapted to the filter hole of the net body 202 and smaller than the size of the filter hole, the height of each protruding block 403 can extend from the bottom of the net body 202 to the upper side of the net body 202 through the filter hole, and each protruding block 403 is smaller than the filter hole of the net body 202, so that when the roller 402 rotates, the protruding block 403 can be easily pulled out from the filter hole of one net body 202 and the next protruding block 403 can be easily inserted into the next filter hole, and the protruding block 403 can penetrate through the net body 202, so that foreign matters such as gangue clamped by the filter hole can be completely ejected out of the filter hole of the net body 202, and cleaning efficiency is improved.

Further, the number of the plurality of groups of the protruding blocks 403 distributed in a ring shape is at least three, and the protruding blocks 403 with more than three groups can sequentially eject and clean each row of the filtering holes of the net body 202 when the roller 402 rotates.

Working principle: when the fluidized bed dry coal separator main body 1 is used for separating and screening clean coal and gangue, the gangue in raw coal can sink and pile up on the screen 2 due to gravity, the first motor 301 in the cam vibration assembly 3 drives the first rotating shaft 302 and the second rotating shaft 307 to synchronously rotate in the same direction to periodically prop up the frame 201, and under the action of the spring 503, the frame 201 can drive the net 202 to vibrate, so that the gangue piled up on the net 202 is also vibrated, the possibility that the filter holes are blocked on the net 202 due to the gangue pile up is reduced, the trafficability of the net 202 is influenced, air entering from the air inlet can be relatively ensured to enter the fluidized bed dry coal separator main body 1, when fine gangue is blocked in the filter holes of the net 202, the second motor 406 drives the roller 402 to move relative to the screen 2, and a plurality of groups of protruding blocks 403 arranged on the surface of the roller 402 can sequentially prop up into the corresponding row of filter holes of the net 202 to prop up the retained in the filter holes, so that the trafficability of the screen 2 is further ensured, and the trafficability of the screen 2 is thoroughly cleaned.

It should be noted that, specific model specifications of the main body 1, the first motor 301, and the second motor 406 of the fluidized bed dry coal separator need to be determined by selecting a model according to actual specifications of the device, and a specific model selection calculation method adopts the prior art in the art, so that detailed descriptions thereof are omitted.

The power supply of the fluidized bed dry separator main body 1, the first motor 301 and the second motor 406 and the principle thereof will be apparent to those skilled in the art, and will not be described in detail herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The utility model provides a fluidized bed dry coal separator's screen cloth cleaning device for clear up the inside screen cloth that sets up of fluidized bed dry coal separator main part, its characterized in that, including cam vibration subassembly, roller lead to ejecting subassembly and four stopper, the screen cloth includes the framework, be provided with the dictyosome between the framework inner wall, the recess has been seted up at the both ends of framework both sides surface, every the stopper sets up on fluidized bed dry coal separator main part both sides inner wall and is located corresponding recess, every the stopper includes the block, every the block is provided with first spout towards one side surface of framework, every be provided with first slider in the recess, every first slider slidable mounting is in corresponding first spout, every first spout bottom inner wall fixed mounting has the one end of spring, every spring other end fixed mounting is in corresponding first slider bottom surface, cam vibration subassembly sets up in the framework top, framework bottom surface both sides are provided with the second spout, two in the second spout slidable mounting roller lead to the subassembly.

2. The screen cleaning device of the fluidized bed dry coal separator as set forth in claim 1, wherein: the cam vibration assembly comprises a first motor, the first motor is fixedly arranged on a motor mounting plate, the motor mounting plate is fixedly arranged on one side surface of the main body of the fluidized bed dry coal separator, one end of an output shaft of the first motor extends into the main body of the fluidized bed dry coal separator through a through hole and is fixedly connected with one end of a first rotating shaft, the other end of the first rotating shaft is rotatably arranged on the inner wall of one side of the main body of the fluidized bed dry coal separator, and cams are fixedly sleeved at the corresponding positions of the two ends of the first rotating shaft on the upper surfaces of two sides of the frame body.

3. The screen cleaning device of the fluidized bed dry coal separator as set forth in claim 2, wherein: the first motor output shaft is located the fixed cover of fluidized bed dry coal separator main part and is equipped with first sprocket, the cover is equipped with the chain and is connected with the second sprocket through chain drive on the first sprocket, second sprocket fixed cover is located second pivot one end, the second pivot other end is through extending to fluidized bed dry coal separator main part inside and rotate and install on fluidized bed dry coal separator main part one side inner wall, the both ends that the second pivot is located fluidized bed dry coal separator main part inside are located the corresponding position of framework both sides upper surface and are equipped with the cam in the same fixed cover.

4. A screen cleaning apparatus for a fluidized bed dry coal separator as set forth in claim 3, wherein: the second rotating shaft is horizontally arranged on one side of the first rotating shaft, and the size, shape and protruding direction of the four cams are consistent.

5. The screen cleaning device of the fluidized bed dry coal separator as set forth in claim 1, wherein: the roller ejecting assembly comprises two second sliding blocks, the two second sliding blocks are respectively and slidably mounted in second sliding grooves on one side, a roller is rotatably mounted between the surfaces on the opposite sides of the second sliding blocks, a plurality of groups of protruding blocks which are uniformly distributed in a rectangular shape are arranged on the outer wall of the roller, each group of protruding blocks are linearly distributed, the distance between the protruding block position distribution and the protruding blocks is in one-to-one fit with the filtering holes of the net body, one of the threaded holes penetrating through the threaded holes is formed in one end surface of one second sliding block and is meshed with the threaded holes, one end of the screw is rotatably mounted on one side surface of one mounting plate, the other end of the screw is fixedly connected with one end of an output shaft of a second motor, the second motor is fixedly mounted on one side surface of the other mounting plate, and the two mounting plates are arranged at two ends of one side surface of the bottom of the frame body.

6. The screen cleaning device of the fluidized bed dry coal separator as set forth in claim 5, wherein: the roller and the protruding blocks are made of rubber materials.

7. The screen cleaning device of the fluidized bed dry coal separator as set forth in claim 5, wherein: each protruding block is matched with the mesh body filtering holes in shape and smaller than the filtering holes in size, and the height of each protruding block can extend to the upper part of the mesh body from the bottom of the mesh body through the filtering holes.

8. The screen cleaning device of the fluidized bed dry coal separator as set forth in claim 5, wherein: the number of the plurality of groups of lugs distributed in a ring shape is at least three.