CN219949786U - Inhale powder mechanism and defeated coal baffle box sealing device - Google Patents

Abstract

The utility model relates to the technical field of coal conveying and guiding, in particular to a powder suction mechanism and a coal conveying and guiding groove sealing device, which comprises a construction component and a main body component, wherein the main body component is arranged below the construction component, the main body component is fixedly arranged on the lower surface of the construction component, the construction component is arranged above a coal conveying belt when in use, the powder suction component comprises a communication component and powder suction components, the communication component is arranged on two sides of the main body component, the powder suction components are arranged on the side wall of the communication component, the communication component can absorb pulverized coal air and the like in the main body component and absorb the pulverized coal air and the like into the powder suction component for centralized filtering treatment, and the treatment component comprises a pushing component and a cleaning component, wherein the pushing component and the cleaning component are arranged in the powder suction component, and the pushing component and the cleaning component are mutually matched for use, so that vibration and scraping cleaning treatment can be conveniently carried out on a filter screen plate in the pushing component when the powder suction component filters dust, and the inconvenience of affecting the use effect of the filter screen plate due to the blocking of pulverized coal is reduced.

Description

Inhale powder mechanism and defeated coal baffle box sealing device

Technical Field

The utility model relates to the technical field of coal conveying and guiding, in particular to a powder suction mechanism and a coal conveying and guiding groove sealing device.

Background

The guide chute is mainly used for DT2 series belt conveyors and YM96 series belt conveyors, the guide chute is arranged at the receiving position of the belt conveyor, materials falling from the hopper can be concentrated to the middle part of the belt conveyor before reaching the belt speed, the materials are restrained from being scattered outwards, the existing coal conveying guide chute and the belt contact position are poor in sealing effect, a large amount of leaked pulverized coal dust can be caused after long-time use, the problems of large dust-raising quantity, coal scattering and the like can occur, the environment is polluted, the content of air pulverized coal dust is easily caused to be too high, the risk of inflammable and explosive is caused, dust and the like are difficult to absorb and process, great inconvenience is brought, and meanwhile, the filtered pulverized coal and the like are difficult to collect and process in the use process, so that the use of the device is affected.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

The utility model is provided in view of the problems that the pulverized coal dust is easy to leak in the using process, the environment is polluted, the content of the pulverized coal dust in the air is easy to be too high, the risk of inflammability and explosiveness exists, and the dust and the like are difficult to absorb and treat in the prior art.

It is therefore an object of the present utility model to provide a powder suction mechanism.

In order to solve the technical problems, the utility model provides the following technical scheme: a construction assembly comprising a construction member and a body member, the body member being disposed above the construction member;

the powder suction assembly comprises a communication piece and a powder suction piece, wherein the communication piece is arranged on two sides of the main body piece, and the powder suction piece is arranged on the side wall of the communication piece; the processing assembly comprises a pushing piece and a cleaning piece, wherein the pushing piece and the cleaning piece are arranged in the powder suction piece.

As a preferable mode of the powder suction mechanism of the utility model, wherein: the communicating piece includes communicating pipe, outlet duct and dust catcher, communicating pipe sets up in the pipeline both sides, be provided with the dust catcher in the communicating pipe, the opposite side of communicating pipe sets up in powder suction box one side, one side of powder suction box is provided with the outlet duct, and communicating pipe stretches into and inhale the powder box part rotation and be provided with the pivot, and the outside of pivot is provided with the deflector.

As a preferable mode of the powder suction mechanism of the utility model, wherein: the construction member comprises a guide groove, and the main body member comprises a pipeline which is arranged at the lower side of the guide groove.

The powder suction piece comprises a powder suction box which is arranged at one side of the communicating piece;

the powder suction piece further comprises a mounting frame and a filter screen plate, wherein the mounting frame is arranged in the powder suction box, and the filter screen plate is arranged in the mounting frame;

the pushing piece comprises a guide fan and a connecting plate, the guide fan is arranged on one side of the mounting frame, and the connecting plate is arranged on one side of the mounting frame;

the pushing piece further comprises a mounting plate and a sliding column, the mounting plate is arranged on the inner side wall of the powder suction box, and the sliding column is arranged on the side wall of the mounting plate;

the pushing piece further comprises a reset spring, and the reset spring is sleeved on the outer surface of the sliding column.

As a preferable mode of the powder suction mechanism of the utility model, wherein: the cleaning piece comprises a limiting rod and a threaded rod, the limiting rod is arranged on one side of the mounting frame, and the threaded rod is rotatably arranged on one side of the connecting plate;

the cleaning piece further comprises a scraping plate, the scraping plate is in threaded fit with the threaded rod, and the scraping plate is in sliding fit with the limiting rod.

As a preferable mode of the powder suction mechanism of the utility model, wherein: the pushing piece further comprises a fixing plate, and the side wall of the sliding column is provided with the fixing plate.

As a preferable mode of the powder suction mechanism of the utility model, wherein: the powder suction piece further comprises a sealing door, and the sealing door is rotatably arranged on one side of the powder suction box.

The powder suction mechanism has the beneficial effects that: the utility model can conveniently form a micro negative pressure state at the sealing rubber of the pouring tank when the coal is conveyed and guided by the arranged powder suction mechanism, absorb the coal dust, filter and collect the coal dust by the arranged filter screen plate, and simultaneously, carry out linkage knocking cleaning treatment on the filter screen plate by the arranged treatment assembly when the coal is sucked, thereby reducing the inconvenience that the use effect of the filter screen plate is influenced by the blockage of the coal dust.

In view of the fact that it is difficult to seal it and collect pulverized coal during actual use, there is also a problem.

In order to solve the technical problems, the utility model also provides the following technical scheme: the sealing device of the coal conveying guide chute comprises a sealing assembly, wherein the sealing assembly comprises sealing elements which are arranged on two sides of a pipeline;

the collecting assembly comprises a collecting piece and an observing piece, wherein the collecting piece is arranged on the lower side of the powder suction box, and the observing piece is arranged on one side of the collecting piece.

As a preferable scheme of the coal conveying and guiding chute sealing device, the utility model comprises the following steps: the sealing element comprises sealing rubber strips which are respectively arranged at two sides of the pipeline.

As a preferable scheme of the coal conveying and guiding chute sealing device, the utility model comprises the following steps: the collecting piece comprises a powder collecting box and a collecting box, the collecting box is arranged on the lower side of the powder absorbing box, and the powder collecting box is arranged on one side of the collecting box;

the collecting piece further comprises a sliding block and a channel, the sliding block is arranged on two sides of the powder collecting box, and the channel is arranged on two sides of the collecting box;

wherein the sliding block is movably connected with the channel.

As a preferable scheme of the coal conveying and guiding chute sealing device, the utility model comprises the following steps: the observation piece comprises an observation window, and the observation window is arranged on one side of the collecting box.

The sealing device for the coal conveying and guiding chute has the beneficial effects that: the sealing assembly can facilitate sealing treatment of the guide chute, and the collecting assembly can facilitate collecting and concentrating treatment of filtered coal dust and the like.

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 description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is an overall schematic view of a powder suction mechanism.

Fig. 2 is a cross-sectional view of the suction mechanism.

Fig. 3 is an overall schematic view of the cleaning member in the suction mechanism.

Fig. 4 is a schematic structural view of the communicating member in the powder suction mechanism.

Fig. 5 is a schematic structural view of a sealing device of a coal conveying guide chute.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1-3, in a first embodiment of the present utility model, a construction assembly 100 is provided, which includes a construction member 101 and a main body member 102, the main body member 102 is disposed below the construction member 101, the main body member 102 is fixedly installed on the lower surface of the construction member 101, when in use, the construction assembly 100 is placed above a coal conveying belt, the powder suction assembly 200 includes a communication member 201 and a powder suction member 202, the communication member 201 is disposed at two sides of the main body member 102, the powder suction member 202 is disposed on a side wall of the communication member 201, the communication member 201 can absorb pulverized coal air in the main body member 102, and the like, and the pulverized coal air is absorbed into the powder suction member 202 to perform concentrated filtration treatment, and the processing assembly 300 includes a pushing member 301 and a cleaning member 302, wherein the pushing member 301 and the cleaning member 302 are disposed in the powder suction member 202, and the pushing member 301 and the cleaning member 302 are mutually matched for use, so that when the powder suction member 202 filters dust, the powder is conveniently filtered by wind generated by a dust suction machine 201c, the inside the pushing member 301 and the dust suction member 202 is processed by scraping the filter 202c, and the dust suction member is not adhered to a duct 101a, and the duct 101a is mounted on the side of the duct 101 a.

Further, the communicating member 201 includes a communicating pipe 201a, an air outlet pipe 201b and a dust collector 201c, the communicating pipe 201a is disposed at two sides of the pipe 102a, the dust collector 201c is disposed in the communicating pipe 201a, the other side of the communicating pipe 201a is disposed at one side of the dust suction box 202a, the air outlet pipe 201b is disposed at one side of the dust suction box 202a, a rotating shaft is rotatably disposed in a portion of the communicating pipe 201a extending into the dust suction box 202a, a guide plate 201d is disposed at an outer side of the rotating shaft, the other end of the rotating shaft extends out of the dust suction box 202a, the rotating shaft is manually controlled to rotate or fix, the communicating pipe 201a is fixedly mounted at two side walls of the pipe 102a, the dust collector 201c is fixedly mounted in the communicating pipe 201a, when in use, negative pressure is formed in the pipe 102a, dust is sucked into the dust suction box 202a, dust leakage is reduced, and environment is improved.

The powder absorbing member 202 includes a powder absorbing box 202a, the powder absorbing box 202a is arranged at one side of the communicating member 201, the powder absorbing box 202a is fixedly communicated with the other side wall of the communicating pipe 201a, pulverized coal and the like are absorbed into the powder absorbing box 202a through a dust collector 201c, the powder absorbing member 202 further includes a mounting frame 202b and a filter screen 202c, the mounting frame 202b is arranged in the powder absorbing box 202a, the filter screen 202c is arranged in the mounting frame 202b, and after pulverized coal and the like are absorbed into the powder absorbing box 202a, the pulverized coal and the like are filtered through the filter screen 202 c.

Still further, the pushing member 301 includes a guiding fan 301a and a connecting plate 301b, the pushing member 301 is disposed inside the powder suction box 202a, the pushing member 301 further includes a mounting plate 301c and a sliding column 301d, the mounting plate 301c is disposed on an inner side wall of the powder suction box 202a, the sliding column 301d is disposed on a side wall of the mounting plate 301c, the pushing member 301 further includes a return spring 301f, the return spring 301f is sleeved on an outer surface of the sliding column 301d, the pushing member 301 further includes a fixing plate 301e, a fixing plate 301e is disposed on a side wall of the sliding column 301d, when the device is used, dust-containing air is absorbed by the dust collector 201c, and dust in the air can be filtered through the filter screen 202c, meanwhile, wind generated by the wind force can generate a pushing force on the filter screen 202c to drive the filter screen 202c to move, and meanwhile, the filter screen 202c is driven to reciprocate by the elastic force in a reverse direction through the sliding column 301d and the return spring 301f, so that dust is reduced and adhered to the surface of the filter screen 202c, and dust is not easy to suck dust.

The operation process comprises the following steps: when the dust suction device is used, the suction fan is started to adsorb soot and the like in the pipeline 102a and adsorb the soot and the like in the dust suction box 202a, the soot and the like are filtered through the filter screen plate 202c, filtered air is discharged through the air outlet pipe 201b, wind power generated by the dust suction machine 201c during filtering generates a thrust force to the filter screen plate 202c to drive the filter screen plate 202c to move, and meanwhile, the set sliding column 301d and the reset spring 301f apply a reverse elastic force to the filter screen plate 202c, so that the filter screen plate 202c is driven to reciprocate left and right to vibrate, dust and the like are reduced to adhere to the surface of the filter screen plate 202c, and inconvenience of the dust suction effect of the device is affected.

Example 2

Referring to fig. 2 to 4, in a second embodiment of the present utility model, unlike the previous embodiment, this embodiment provides a handling unit 300 of a powder suction mechanism, which solves the problem that it is difficult to scrape and clean a screen 202c after long time use, and includes a cleaning member 302 including a stopper rod 302a and a threaded rod 302b, the stopper rod 302a is disposed at one side of a mounting frame 202b, the threaded rod 302b is rotatably disposed at one side of a connecting plate 301b, the cleaning member 302 further includes a scraper 302, the scraper 302c is in threaded engagement with the threaded rod 302b, the scraper 302c is in sliding engagement with the stopper rod 302a, the scraper 301 is in contact with the screen 202c, two symmetrically disposed stopper rods 302a are provided at a front end surface of the mounting frame 202b, the stopper rod 302a is rotatably connected with the threaded rod 302b, the pushing member 301 includes a guide fan 301a and the connecting plate 301b, the pushing member 301 is disposed inside the powder suction box 202a, a connection plate 301b is disposed on the side wall of the mounting frame 202b, a threaded rod 302b is rotatably connected between opposite side walls of the connection plate 301b, a guiding fan 301a is disposed on the outer surface of the threaded rod 302b, when the filter screen plate 202c needs to be cleaned, the rotating shaft adjusts the inclination of the guiding plate 201d to fix the rotating shaft, so that the air inlet direction of the rotating shaft blows downwards, the lower guiding fan 301a is driven to rotate, the threaded rod 302b rotates in the limiting rod 302a to drive the threaded rod 302b to rotate, the scraper 302c can slide upwards to perform scraping treatment on the filter screen plate 202c, when the scraper 302c moves to the upper side, wind direction at the air inlet is upwards after rotating the rotating shaft again, the upper guiding fan 301a is driven to rotate reversely, so that the threaded rod 302b is driven to move downwards, and the up-down movement cleaning treatment of the scraper 302c is realized, enhancing its cleaning effect on the screen plate 202 c.

Further, the powder absorbing member 202 further includes a sealing door 202d, the sealing door 202d is rotatably disposed on one side of the powder absorbing box 202a, the sealing door 202d is rotatably connected with the powder absorbing box 202a through a hinge, and the rapid maintenance of the components inside the powder absorbing box 202a can be conveniently performed through the disposed sealing door 202 d.

The rest of the structure is the same as that of embodiment 1.

The operation process comprises the following steps: when the filter screen plate 202c is in use, the rotating shaft is rotated to adjust the inclination of the guide plate 201d and then fix the rotating shaft, so that the air inlet direction of the guide plate is blown downwards, the lower guide fan 301a is driven to rotate, the threaded rod 302b is driven to rotate in the rotation mode of the limit rod 302a, the scraper 302c can slide upwards to scrape the filter screen plate 202c, after the scraper 302c moves to the upper side, the air inlet direction is upwards after the rotating shaft is rotated again, the upper guide fan 301a is blown to rotate, the threaded rod 302b is driven to rotate reversely, the guide fan is driven to move downwards, the up-and-down movement cleaning treatment of the scraper 302c is realized, and the cleaning effect of the scraper 302c on the filter screen plate 202c is improved.

Example 3

Referring to fig. 5, in a third embodiment of the present utility model, unlike the previous embodiment, the present embodiment provides a sealing device for a coal feeding chute, which solves the problem that it is difficult to perform sealing treatment on coal feeding by using a chute 101a, and simultaneously it is difficult to perform centralized collection treatment on coal ash and the like, and the sealing device comprises a sealing assembly 400, including a sealing member 401, wherein the sealing member 401 is disposed at two sides of a pipe 102a, the collecting assembly 500 includes a collecting member 501 and an observing member 502, the collecting member 501 is disposed at the lower side of a suction box 202a, the observing member 502 is disposed at one side of the collecting member 501, the sealing member 401 includes sealing rubber strips 401a, the sealing rubber strips 401a are disposed at two sides of the pipe 102a, and the sealing rubber strips 401a are adhered at two sides of the pipe 102 a.

Specifically, the collecting piece 501 includes a powder collecting box 501a and a collecting box 501b, the collecting box 501b is disposed at the lower side of the powder suction box 202a, the powder collecting box 501a is disposed at one side of the collecting box 501b, the powder collecting box 501a is convenient for collecting and processing the coal ash filtered by the filter screen plate 202c in a concentrated manner, the collecting piece 501 further includes a sliding block 501c and a channel 501d, the sliding block 501c is disposed at two sides of the powder collecting box 501a, the channel 501d is disposed at two sides of the collecting box 501b, the sliding blocks 501c are fixedly connected at two sides of the powder collecting box 501a, the limiting rods 302a are slidably connected with the limiting rods 302a, and the sliding blocks 501c and the limiting rods 302a can facilitate the quick extraction of the powder collecting box 501a for cleaning and processing in a concentrated manner.

Further, the observation piece 502 includes an observation window 502a, the observation window 502a is disposed on one side of the collecting box 501b, the observation window 502a is fixedly mounted on a side wall of the collecting box 501b, and the observation window 502a can facilitate observation of the soot content collected inside the soot collecting box 501 a.

The operation process comprises the following steps: dust falls into the powder collecting box 501a after being filtered by the filter screen plate 202c, is collected, the dust collecting amount in the powder collecting box 501a is observed through the observation window 502a, and when too much collected dust is collected, the powder collecting box 501a is extracted to carry out quick cleaning treatment.

It is important to note that the construction and arrangement of the utility model as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present utility model. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility models. Therefore, the utility model is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the utility model, or those not associated with practicing the utility model).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (10)

1. A inhale powder mechanism, its characterized in that: comprising the steps of (a) a step of,

a construction assembly (100) comprising a construction element (101) and a body element (102), the body element (102) being arranged below the construction element (101);

the powder suction assembly (200) comprises a communication piece (201) and powder suction pieces (202), wherein the communication piece (201) is arranged on two sides of the main body piece (102), and the powder suction pieces (202) are arranged on the side walls of the communication piece (201);

the processing assembly (300) comprises a pushing piece (301) and a cleaning piece (302), wherein the pushing piece (301) and the cleaning piece (302) are arranged in the powder suction piece (202).

2. The powder suction mechanism as claimed in claim 1, wherein: the communicating piece (201) comprises a communicating pipe (201 a), an air outlet pipe (201 b) and a dust collector (201 c), wherein the communicating pipe (201 a) is arranged on two sides of a pipeline (102 a), the dust collector (201 c) is arranged in the communicating pipe (201 a), the other side of the communicating pipe (201 a) is arranged on one side of a dust suction box (202 a), the air outlet pipe (201 b) is arranged on one side of the dust suction box (202 a), a rotating shaft is arranged in a part of the communicating pipe (201 a) extending into the dust suction box (202 a), and a guide plate (201 d) is arranged on the outer side of the rotating shaft.

3. A suction mechanism as claimed in claim 1 or 2, wherein: the construction member (101) comprises a guide groove (101 a), the main body member (102) comprises a pipeline (102 a), and the pipeline (102 a) is arranged at the lower side of the guide groove (101 a);

the powder suction piece (202) comprises a powder suction box (202 a), and the powder suction box (202 a) is arranged at one side of the communicating piece (201);

the powder suction piece (202) further comprises a mounting frame (202 b) and a filter screen plate (202 c), wherein the mounting frame (202 b) is arranged in the powder suction box (202 a), and the filter screen plate (202 c) is arranged in the mounting frame (202 b);

the pushing piece (301) comprises a guide fan (301 a) and a connecting plate (301 b), the guide fan (301 a) is arranged on one side of the mounting frame (202 b), and the connecting plate (301 b) is arranged on one side of the mounting frame (202 b);

the pushing piece (301) further comprises a mounting plate (301 c) and a sliding column (301 d), the mounting plate (301 c) is arranged on the inner side wall of the powder suction box (202 a), and the sliding column (301 d) is arranged on the side wall of the mounting plate (301 c);

the pushing piece (301) further comprises a return spring (301 f), and the return spring (301 f) is sleeved on the outer surface of the sliding column (301 d).

4. A powder suction mechanism as claimed in claim 3, wherein: the cleaning piece (302) comprises a limiting rod (302 a) and a threaded rod (302 b), the limiting rod (302 a) is arranged on one side of the mounting frame (202 b), and the threaded rod (302 b) is rotatably arranged on one side of the connecting plate (301 b);

the cleaning piece (302) further comprises a scraping plate (302 c), the scraping plate (302 c) is in threaded fit with the threaded rod (302 b), and the scraping plate (302 c) is in sliding fit with the limiting rod (302 a).

5. The powder suction mechanism as claimed in claim 4, wherein: the pushing piece (301) further comprises a fixing plate (301 e), and the side wall of the sliding column (301 d) is provided with the fixing plate (301 e).

6. A suction mechanism as claimed in claim 4 or 5, wherein: the powder suction piece (202) further comprises a sealing door (202 d), and the sealing door (202 d) is rotatably arranged on one side of the powder suction box (202 a).

7. The utility model provides a coal conveying baffle box sealing device which characterized in that: comprising a powder suction mechanism as claimed in any one of claims 1 to 6, and

a seal assembly (400) comprising a seal (401), the seal (401) being disposed on both sides of the pipe (102 a);

the collecting assembly (500) comprises a collecting piece (501) and an observing piece (502), wherein the collecting piece (501) is arranged on the lower side of the powder suction box (202 a), and the observing piece (502) is arranged on one side of the collecting piece (501).

8. The coal chute sealing apparatus according to claim 7, wherein: the sealing piece (401) comprises sealing rubber strips (401 a), and the sealing rubber strips (401 a) are respectively arranged on two sides of the pipeline (102 a).

9. The coal chute sealing device according to claim 8, wherein: the collecting piece (501) comprises a powder collecting box (501 a) and a collecting box (501 b), the collecting box (501 b) is arranged on the lower side of the powder suction box (202 a), and the powder collecting box (501 a) is arranged on one side of the collecting box (501 b);

the collecting piece (501) further comprises a sliding block (501 c) and a channel (501 d), wherein the sliding block (501 c) is arranged on two sides of the powder collecting box (501 a), and the channel (501 d) is arranged on two sides of the collecting box (501 b);

wherein the sliding block (501 c) is movably connected with the channel (501 d).

10. The coal chute sealing apparatus according to claim 9, wherein: the observation piece (502) comprises an observation window (502 a), and the observation window (502 a) is arranged on one side of the collecting box (501 b).