Device for preventing coal accumulation at outlet of coal feeder

Abstract

The invention relates to the technical field of coal feeders, in particular to a coal feeder outlet coal accumulation prevention device which comprises a bearing component, a moving guide component, a coal accumulation prevention component and a coal accumulation prevention component. The opening and closing component comprises a mounting assembly arranged on the bearing assembly, an opening and closing assembly arranged on the mounting assembly and a linkage assembly arranged on the guide assembly; the rotating component comprises a rotating assembly arranged on the bearing assembly, a driving assembly arranged on the rotating assembly, a transmission assembly arranged on the driving assembly and an air blowing assembly arranged on the driving assembly. According to the coal briquette pushing device, the pushing plate and the guide block which can move along the hopper are arranged, and the pushing plate and the guide block do reciprocating motion in the hopper so that coal briquettes accumulated in the hopper can be rapidly pushed, and falling of the coal briquettes is controlled in a staged mode; and the situation that the conveyor is blocked due to the fact that the coal briquettes rapidly fall within a short time is avoided when the coal briquettes fall.

Description

Technical Field

[0001] The present invention relates to the technical field of coal feeders, and particularly to a device for preventing coal accumulation at the outlet of a coal feeder. Background Art

[0002] A coal feeder is a mechanical device that can accurately adjust the coal feeding amount of a coal mill according to the load requirement. It is arranged between the raw coal bunker and the coal mill. In a direct-fired pulverized coal system, the coal feeding amount is directly adapted to the boiler load. There are various types of coal feeders, which can be divided into volumetric and gravity types according to their structural characteristics and working principles. When performing the coal feeding operation, in order to stably output coal lumps, the diameter of the output side is smaller. Therefore, a coal feeder with a conical structure is very likely to cause coal lumps to accumulate on each other, resulting in difficulty in smooth feeding. In order to ensure the smooth feeding of coal lumps, a corresponding anti-coal-accumulation device is required to process the coal lumps. When the existing anti-coal-accumulation device is in use, since it mostly uses an air cannon or a manual hammer to strike the outer shell to promote the falling of coal lumps, when cleaning in this way, often the coal lumps blocked in the lower layer have not completely fallen, and the coal lumps in the upper layer will fall and cause blockage again, and sufficient cleaning operations cannot be carried out. Summary of the Invention

[0003] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title of the invention. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the above-mentioned problem of easy blockage, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a device for preventing coal accumulation at the outlet of a coal feeder.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A device for preventing coal accumulation at the outlet of a coal feeder includes a bearing component, including a bearing assembly, a guiding component arranged on the bearing assembly; an opening and closing component, including an installation component arranged on the bearing assembly, an opening and closing assembly arranged on the installation component, and a linkage component arranged on the guiding component; a rotating component, including a rotating assembly arranged on the bearing assembly, a driving component arranged on the rotating assembly, a transmission component arranged on the driving component, and an air blowing component arranged on the driving component; the guiding component includes a hydraulic rod arranged on the bearing assembly, a moving table arranged at the top of the hydraulic rod, a connecting block arranged on the moving table, a pushing plate arranged on the connecting block, and a guiding block arranged on the pushing plate.

[0007] As a preferred embodiment of the coal accumulation prevention device at the outlet of the coal feeder according to the present invention, the following components are included: the bearing assembly includes a hopper, a material outlet provided at the bottom end of the hopper, sliding grooves opened on the left and right sides of the hopper, and the connecting block is slidably connected to the sliding grooves.

[0008] As a preferred embodiment of the coal accumulation prevention device at the outlet of the coal feeder according to the present invention, the following components are included: the installation assembly includes brackets provided on both sides of the hopper, and slots opened on the left and right sides of the hopper.

[0009] As a preferred embodiment of the coal accumulation prevention device at the outlet of the coal feeder according to the present invention, the following components are included: the opening and closing assembly includes a distance measuring device provided inside the bracket, a telescopic rod provided inside the bracket, a baffle provided at the top end of the telescopic rod, and a spring sleeved on the telescopic rod.

[0010] As a preferred embodiment of the coal accumulation prevention device at the outlet of the coal feeder according to the present invention, the following components are included: the linkage assembly includes a first oil pipe provided in the sliding groove, a one-way valve pipe provided on the first oil pipe, a second oil pipe provided on the telescopic rod, and a hydraulic oil tank communicated with the one-way valve pipe.

[0011] As a preferred embodiment of the coal accumulation prevention device at the outlet of the coal feeder according to the present invention, the following components are included: the opening and closing component further includes a pressure relief assembly provided on the linkage assembly, and the pressure relief assembly includes a shunt pipe communicated with the first oil pipe, a supply pipe communicated with the one-way valve pipe, a pressure relief valve communicated with the hydraulic oil tank, and a pressure relief pipe communicated with the pressure relief valve.

[0012] As a preferred embodiment of the coal accumulation prevention device at the outlet of the coal feeder according to the present invention, the following components are included: the rotating assembly includes a guide shaft provided on the material outlet, a blocking plate provided on the guide shaft, and a support frame provided on the material outlet.

[0013] As a preferred embodiment of the coal accumulation prevention device at the outlet of the coal feeder according to the present invention, the following components are included: the driving assembly includes a belt pulley provided on the guide shaft, a driving motor provided on the support frame, a belt provided on the belt pulley, mounting frames provided on the front and rear end faces of the hopper, and a platform frame provided on the lower surface of the mounting frame.

[0014] As a preferred embodiment of the coal accumulation prevention device at the outlet of the coal feeder according to the present invention, the following components are included: the transmission assembly includes a first helical gear provided on the platform frame, a second helical gear provided on the mounting frame, a turntable provided on the mounting frame, a longitudinal groove opened on the mounting frame, and a guide post provided on the turntable.

[0015] As a preferred embodiment of the coal accumulation prevention device at the outlet of the coal feeder of the present invention, the pneumatic blowing assembly includes a connecting rod disposed on the guide post, a moving seat disposed in the longitudinal groove, a piston rod disposed on the moving seat, an air blowing pipe disposed on the mounting frame, and a control valve disposed at the top of the air blowing pipe.

[0016] Advantages of the present invention: By providing a push plate and a guiding block that can move along the hopper, when there is coal accumulation inside the hopper, the hydraulic rod installed in the hopper can be activated to reciprocally push the moving seat, and the push plate and the guiding block reciprocally move inside the hopper to quickly push the coal blocks accumulated in the hopper. When the push plate moves to push the coal blocks, the blocking plate can be inserted into the hopper, so that when cleaning the coal blocks, the falling coal blocks can be blocked periodically. By installing a blocking plate inside the material opening through a guide shaft, when the coal blocks fed through the hopper and the material opening pass through, the setting of the blocking plate installed in the material opening can be used to periodically control the falling of the coal blocks, so that the coal blocks will not fall rapidly in a short time and cause the conveyor to be blocked. When the blocking plate rotates, the air blowing pipe can be driven to jet air through a belt pulley and a belt, impacting the falling coal blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is an overall schematic diagram of a coal accumulation prevention device at the outlet of a coal feeder.

[0019] Figure 2 It is a cross-sectional schematic diagram of a guiding component of a coal accumulation prevention device at the outlet of a coal feeder.

[0020] Figure 3 It is a structural schematic diagram of an opening and closing component of a coal accumulation prevention device at the outlet of a coal feeder.

[0021] Figure 4 It is another perspective overall schematic diagram of a coal accumulation prevention device at the outlet of a coal feeder.

[0022] Figure 5 It is a structural schematic diagram of a rotating component of a coal accumulation prevention device at the outlet of a coal feeder.

[0023] Figure 6Another perspective schematic diagram of the drive assembly of a coal accumulation prevention device at the outlet of a coal feeder. Detailed implementation manners

[0024] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0026] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that may be included in at least one implementation manner of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that exclude each other from other embodiments.

[0027] Thirdly, the present invention is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present invention, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0028] Embodiment 1

[0029] Referring to Figures 1 - 4 , this is the first embodiment of the present invention. This embodiment provides a coal accumulation prevention device at the outlet of a coal feeder, including a bearing component 100, including a bearing assembly 101, a guiding component 102 arranged on the bearing assembly 101; an opening and closing component 200, including an installation component 201 arranged on the bearing assembly 101, an opening and closing assembly 202 arranged on the installation component 201, and a linkage component 203 arranged on the guiding component 102; a rotating component 300, including a rotating assembly 301 arranged on the bearing assembly 101, a driving component 302 arranged on the rotating assembly 301, a transmission component 303 arranged on the driving component 302, and a gas blowing component 304 arranged on the driving component 302; the guiding component 102 includes a hydraulic rod 102a arranged on the bearing assembly 101, a moving platform 102b arranged at the top of the hydraulic rod 102a, a connecting block 102c arranged on the moving platform 102b, a push plate 102d arranged on the connecting block 102c, and a guiding block 102e arranged on the push plate 102d.

[0030] Specifically, there are two hydraulic rods 102a. The two hydraulic rods 102a are oppositely installed on the left and right sides of the outer wall of the hopper 101a. Moving platforms 102b are installed on the output ends of the two hydraulic rods 102a. A connecting block 102c is fixedly connected to the inner side of the moving platform 102b. Both the connecting block 102c and the moving platform 102b are inclined structures. A pushing plate 102d is fixedly connected to the side of the connecting block 102c away from the moving platform 102b. A driving block 102e is fixedly connected to the side of the pushing plate 102d away from the connecting block 102c in a linear array. The driving block 102e and the pushing plate 102d together form a pushing structure for the accumulated coal.

[0031] Further, the bearing assembly 101 includes a hopper 101a, a material outlet 101b provided at the bottom end of the hopper 101a, and sliding grooves 101c opened on the left and right sides of the hopper 101a. The connecting block 102c is slidably connected to the sliding groove 101c. A material outlet 101b is fixedly connected to the bottom end surface of the hopper 101a. The main body of the material outlet 101b is a rectangular structure and is in communication with the hopper 101a. Sliding grooves 101c are opened on the outer side surface of the hopper 101a, and the moving platform 102b is slidably connected in the sliding groove 101c.

[0032] Further, the installation assembly 201 includes brackets 201a provided on both sides of the hopper 101a, and insertion slots 201b opened on the left and right sides of the hopper 101a. The brackets 201a are fixedly connected to the outside of the hopper 101a. The opening and closing assembly 202 includes a distance measuring device 202a provided inside the bracket 201a, a telescopic rod 202b provided inside the bracket 201a, a baffle 202c provided at the top end of the telescopic rod 202b, and a spring 202d sleeved on the telescopic rod 202b. The main body of the bracket 201a is a U-shaped structure with an opening facing inward, and there are two brackets 201a in total. The two brackets 201a are oppositely fixedly connected to the left and right side surfaces of the hopper 101a. A distance measuring module is also fixedly connected to the inner side of the longitudinal member of the bracket 201a, and the distance measuring module is a laser distance measuring structure. The first end of the telescopic rod 202b is fixedly connected to the baffle 202c, and the side of the baffle 202c away from the telescopic rod 202b is an inclined structure for inserting into the accumulated coal, and a spring 202d is also fixedly connected to the inner side of the baffle 202c and the second oil pipe 203c.

[0033] Operation process: When discharging materials, if there is coal accumulation, the hydraulic rod 102a installed in the hopper 101a can be started to push the moving platform 102b. When the moving platform 102b moves, the connecting block 102c and the pushing plate 102d fixedly connected to the inner side of the moving platform 102b can be synchronously driven to perform reciprocating tilting movement operations inside the hopper 101a while the moving platform 102b slides along the hopper 101a. When the pushing plate 102d performs tilting movement, the pushing plate 102d and the guiding block 102e fixedly connected to its inner wall can be synchronously used to move inside the coal block to achieve rapid dredging operations.

[0034] Embodiment 2

[0035] Refer to Figures 1 - 4 , which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the linkage component 203 includes a first oil pipe 203a arranged in the chute 101c, a one-way valve pipe 203b arranged on the first oil pipe 203a, a second oil pipe 203c arranged on the telescopic rod 202b, and a hydraulic oil tank 203d communicated with the one-way valve pipe 203b.

[0036] Specifically, a guide rod is fixedly connected to the inner side of the moving platform 102b, and a first oil pipe 203a is fixedly connected to the inside of the hopper 101a. The guide rod is inserted into the first oil pipe 203a. The guide rod is connected to the first oil pipe 203a through a piston. A one-way valve pipe 203b is fixedly connected to the outer peripheral surface of the first oil pipe 203a, and the one-way valve pipe 203b is used to draw hydraulic oil from the hydraulic oil tank 203d. A second oil pipe 203c is fixedly connected to the inner side of the bracket 201a, and the structure of the second oil pipe 203c is the same as that of the first oil pipe 203a. The telescopic rod 202b is partially inserted into the second oil pipe 203c.

[0037] Further, the opening and closing component 200 further includes a pressure relief component 204 disposed on the linkage component 203. The pressure relief component 204 includes a shunt pipe 204a communicating with the first oil pipe 203a, a supply pipe 204d communicating with the one-way valve pipe 203b. Both ends of the supply pipe 204d are respectively communicated with the hydraulic oil tank 203d and the one-way valve pipe 203b, a pressure relief valve 204c communicating with the hydraulic oil tank 203d, a pressure relief pipe 204b communicating with the pressure relief valve 204c. The shunt pipe 204a is fixedly connected to the outside of the first oil pipe 203a. The shunt pipe 204a is used for shunting hydraulic oil, and the shunt pipe 204a is connected to the second oil pipe 203c fixed in the bracket 201a and is used for supplying oil into the inside of the second oil pipe 203c. The outside of the second oil pipe 203c installed in the bracket 201a is also fixedly connected with the pressure relief pipe 204b. The pressure relief pipe 204b is in through connection with the second oil pipe 203c, and the outside of the pressure relief pipe 204b is fixedly connected with the pressure relief valve 204c. The pressure relief valve 204c and the pressure relief pipe 204b together form a pressure relief structure.

[0038] The rest of the structure is the same as that of Embodiment 1.

[0039] Operation process: During dredging, the hydraulic oil in the hydraulic oil tank 203d can be synchronously sucked into the inside of the first oil pipe 203a arranged in the hopper 101a through the supply pipe 204d, and moves towards one side of the first oil pipe 203a through the push plate 102d, so that after the hydraulic oil enters the inside of the first oil pipe 203a, the hydraulic oil in the first oil pipe 203a enters the inner side position of the second oil pipe 203c through the shunt pipe 204a, and repels the telescopic rod 202b outwards to realize the pushing operation of the baffle 202c, so that the baffle 202c can be periodically inserted into the inside of the hopper 101a for periodic closing operation to achieve the purpose of promoting material feeding;

[0040] When the two baffles 202c move towards each other and until it is detected by the ranging module arranged in the bracket 201a that the two baffles 202c are in a closed state, the pressure relief valve 204c installed in the pressure relief pipe 204b can be synchronously started, so that the hydraulic oil in the second oil pipe 203c can be discharged and flows back into the hydraulic oil tank 203d again, so that the baffle 202c can perform a rapid reset operation under the pulling action of the spring 202d, so that the baffle 202c can control the material feeding when resetting.

[0041] Embodiment 3

[0042] Refer to Figures 1 - 6, which is the third embodiment of the present invention. The difference between this embodiment and the above embodiments is that the rotating assembly 301 includes a guide shaft 301a arranged on the material inlet 101b, a blocking plate 301b arranged on the guide shaft 301a, and a support frame 301c arranged on the material inlet 101b.

[0043] Specifically, the inner side of the material inlet 101b is rotatably connected with a blocking plate 301b, the outer side of the blocking plate 301b is fixedly connected with a guide shaft 301a. There are two guide shafts 301a in total, and the two guide shafts 301a are fixedly connected to the front and rear side surfaces of the blocking plate 301b in an opposite direction. The guide shaft 301a is rotatably connected to the inner side of the material inlet 101b through a bearing seat, and the outer side of the material inlet 101b is fixedly connected with a support frame 301c.

[0044] Furthermore, the driving assembly 302 includes a belt pulley 302a arranged on the guide shaft 301a, a driving motor 302b arranged on the support frame 301c, a belt 302c arranged on the belt pulley 302a, mounting brackets 302d arranged on the front and rear end faces of the hopper 101a, and a platform 302e arranged on the lower surface of the mounting bracket 302d.

[0045] There are two support frames 301c in total, and the two support frames 301c are fixedly connected to the front and rear sides of the material inlet 101b in an opposite direction. A bearing seat is installed inside the support frame 301c, which is used to support the guide shaft 301a. One side of the guide shaft 301a far from the material inlet 101b is fixedly connected with a belt pulley 302a. There are four belt pulleys 302a in total, and every two longitudinally adjacent belt pulleys 302a form a group. A driver is also installed at the front end of the front support frame 301c, which is used to drive the guide shaft 301a and the blocking plate 301b to flip. A belt 302c is also installed on the outer side of the belt pulley 302a, and the belt 302c and the belt pulley 302a together form a transmission structure. The outer side of the hopper 101a is fixedly connected with mounting brackets 302d. There are two mounting brackets 302d in total, and the two mounting brackets 302d are fixedly connected to the front and rear side surfaces of the hopper 101a in an opposite direction. The bottom end surface of the mounting bracket 302d is fixedly connected with a platform 302e, and a first helical gear 303a is rotatably connected inside the platform 302e.

[0046] Furthermore, the transmission assembly 303 includes a first helical gear 303a arranged on the platform 302e, a second helical gear 303b arranged on the mounting bracket 302d, a turntable 303c arranged on the mounting bracket 302d, a longitudinal groove 303d opened on the mounting bracket 302d, and a guide post 303e arranged on the turntable 303c.

[0047] Furthermore, the air blowing assembly 304 includes a connecting rod 304a arranged on the guide column 303e, a movable seat 304b arranged in the longitudinal groove 303d, a piston rod 304c arranged on the movable seat 304b, an aeration pipe 304d arranged on the mounting frame 302d, and a control valve 304e arranged at the top of the aeration pipe 304d.

[0048] The mounting frame 302d is rotatably connected to the rotating disk 303c, and the bottom end of the rotating disk 303c is coaxially mounted with a second bevel gear 303b, and the second bevel gear 303b is meshed with the first bevel gear 303a for transmission. The mounting frame 302d is provided with a longitudinal groove 303d, and the top surface of the rotating disk 303c is fixedly connected with a guide column 303e, and the longitudinal groove 303d provided in the mounting frame 302d is also slidably connected with a moving seat 304b, and the top surface of the moving seat 304b is also A guide column 303e is fixedly connected, and connecting rods 304a are also installed on the outsides of the two guide columns 303e, and a piston rod 304c is also fixedly connected to the side of the movable seat 304b away from the turntable 303c, and an aeration pipe 304d is also fixedly connected to the inner side of the hopper 101a, the piston rod 304c is inserted into the aeration pipe 304d, and a control valve 304e is also installed on the side of the aeration pipe 304d away from the piston rod 304c, and the control valve 304e has a pressure detection function for detecting gas pressure.

[0049] The rest of the structure is the same as that of Example 2.

[0050] Operation process: When in use, the hopper 101a can be erected, and after the erection is completed, the external coal blocks can be discharged through the hopper 101a and the material port 101b, and when the coal blocks enter the internal position of the material port 101b, the driver installed on the outside of the support frame 301c can be started to rotate the baffle 301b installed in the guide shaft 301a, and when the baffle 301b rotates, the pulley 302a installed on the outside of the guide shaft 301a can be synchronously driven to rotate, and when the pulley 302a rotates, the friction transmission of the belt 302c arranged on the outside of the pulley 302a can be synchronously used to drive the first bevel gear 303a to rotate;

[0051] Then, when the first helical gear 303a rotates, the meshing transmission between the first helical gear 303a and the second helical gear 303b fixedly connected to the bottom end surface of the turntable 303c can be utilized synchronously to drive the turntable 303c to rotate. And when the turntable 303c rotates, the transmission connection between the guide post 303e and the connecting rod 304a can be utilized synchronously to push the moving seat 304b, so that the moving seat 304b can perform reciprocating longitudinal displacement along the longitudinal groove 303d opened in the mounting frame 302d. And when the moving seat 304b moves, the piston rod 304c fixedly connected to the rear side of the moving seat 304b can be driven synchronously to be extruded inside the air supply pipe 304d fixedly connected in the hopper 101a, so that the air supply pipe 304d can intake air into its interior through the one-way valve installed at its top end, enabling the gas to enter the interior of the air supply pipe 304d and be compressed. During the compression process, the gas pressure in the air supply pipe 304d can be detected by starting the control valve 304e installed outside the air supply pipe 304d. Until when the detected pressure reaches the standard, the control valve 304e can be opened synchronously, so that the air in the air supply pipe 304d can be quickly pumped into the interior of the hopper 101a to bombard the coal blocks, so as to achieve the purpose of accelerating the feeding efficiency.

[0052] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are only illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible on the premise of substantially not deviating from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various components, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature, number or position of discrete elements can be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0053] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the invention or those features that are not relevant to the implementation of the invention).

[0054] It should be understood that, in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, fabrication, and production.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A device for preventing coal accumulation at a coal feeder outlet, characterized in that: include, The bearing component (100) comprises a bearing assembly (101) and a guide assembly (102) arranged on the bearing assembly (101); An opening and closing component (200) comprises a mounting component (201) arranged on the bearing component (101), an opening and closing component (202) arranged on the mounting component (201), and a linkage component (203) arranged on the guiding component (102); The rotating component (300) comprises a rotating component (301) arranged on the bearing component (101), a driving component (302) arranged on the rotating component (301), a transmission component (303) arranged on the driving component (302), and an air blowing component (304) arranged on the driving component (302); The guide assembly (102) comprises a hydraulic rod (102a) arranged on the bearing assembly (101), a moving platform (102b) arranged on the top of the hydraulic rod (102a), a connecting block (102c) arranged on the moving platform (102b), a push plate (102d) arranged on the connecting block (102c), and a guide block (102e) arranged on the push plate (102d).

2. The device for preventing coal accumulation at the outlet of a coal feeder according to claim 1, characterized in that: The bearing assembly (101) comprises a hopper (101a), a material port (101b) arranged at the bottom end of the hopper (101a), and slide grooves (101c) opened on the left and right sides of the hopper (101a); and the connecting block (102c) is slidably connected to the slide grooves (101c).

3. The device for preventing coal accumulation at the outlet of a coal feeder according to claim 2, characterized in that: The mounting assembly (201) comprises brackets (201a) arranged on both sides of the hopper (101a), and slots (201b) opened on the left and right sides of the hopper (101a).

4. The device for preventing coal accumulation at the outlet of a coal feeder according to claim 3, characterized in that: The opening and closing assembly (202) comprises a rangefinder (202a) arranged on the inner side of a bracket (201a), a telescopic rod (202b) arranged on the inner side of the bracket (201a), a baffle (202c) arranged on the top end of the telescopic rod (202b), and a spring (202d) sleeved on the telescopic rod (202b).

5. The device for preventing coal accumulation at the outlet of a coal feeder according to claim 4, characterized in that: The linkage assembly (203) comprises a first oil pipe (203a) arranged in the slide groove (101c), a one-way valve pipe (203b) arranged on the first oil pipe (203a), a second oil pipe (203c) arranged on the telescopic rod (202b), and a hydraulic oil tank (203d) connected to the one-way valve pipe (203b).

6. The device for preventing coal accumulation at the outlet of a coal feeder according to claim 5, characterized in that: The opening and closing component (200) further comprises a pressure relief component (204) arranged on the linkage component (203), wherein the pressure relief component (204) comprises a shunt pipe (204a) connected to the first oil pipe (203a), a supply pipe (204d) connected to the one-way valve pipe (203b), a pressure relief valve (204c) connected to the hydraulic oil tank (203d), and a pressure relief pipe (204b) connected to the pressure relief valve (204c).

7. The device for preventing coal accumulation at the outlet of a coal feeder according to claim 6, characterized in that: The rotating assembly (301) comprises a guide shaft (301a) arranged on the material opening (101b), a blocking plate (301b) arranged on the guide shaft (301a), and a support frame (301c) arranged on the material opening (101b).

8. The device for preventing coal accumulation at the outlet of a coal feeder according to claim 7, characterized in that: The driving assembly (302) comprises a pulley (302a) arranged on the guide shaft (301a), a driving motor (302b) arranged on the support frame (301c), a belt (302c) arranged on the pulley (302a), a mounting frame (302d) arranged on the front and rear end surfaces of the hopper (101a), and a stand (302e) arranged on the lower surface of the mounting frame (302d).

9. The device for preventing coal accumulation at the outlet of a coal feeder according to claim 8, characterized in that: The transmission assembly (303) includes a first bevel gear (303a) arranged on a stand (302e), a second bevel gear (303b) arranged on the mounting frame (302d), a turntable (303c) arranged on the mounting frame (302d), a longitudinal groove (303d) opened on the mounting frame (302d), and a guide column (303e) arranged on the turntable (303c).

10. The device for preventing coal accumulation at the outlet of a coal feeder according to claim 9, characterized in that: The air blowing assembly (304) includes a connecting rod (304a) arranged on a guide column (303e), a movable seat (304b) arranged in the longitudinal groove (303d), a piston rod (304c) arranged on the movable seat (304b), an aeration pipe (304d) arranged on the mounting frame (302d), and a control valve (304e) arranged at the top of the aeration pipe (304d).

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