Anti-blocking discharging device based on railway tunnel pulverized coal cleaning and collecting

Abstract

The invention discloses an anti-blocking discharging device based on railway tunnel pulverized coal cleaning and collecting, and relates to the technical field of pulverized coal discharging, the anti-blocking discharging device comprises a storage bin body, a first auxiliary discharging mechanism and a second auxiliary discharging mechanism, the bottom of the storage bin body is fixedly connected with a discharging pipe, and the outer surface of the storage bin body is fixedly connected with a feeding pipe; the second auxiliary discharging mechanism is driven by the first auxiliary discharging mechanism, air is blown to pulverized coal through an air outlet hole of a stirring pipe, due to the fact that the pulverized coal is prone to hardening or accumulation in the storage or transportation process, the fluidity is reduced, the agglomeration structure of the pulverized coal can be effectively damaged through stirring, the pulverized coal is looser, and the fluidity is improved; and meanwhile, gaps are generated among the pulverized coal particles which are extruded mutually by utilizing the impact of airflow, so that the flowability of the pulverized coal during unloading is further improved, the blockage phenomenon during unloading of the pulverized coal is prevented, and smooth unloading and subsequent treatment of the pulverized coal are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of coal powder unloading, and in particular to an anti-blocking unloading device based on cleaning and collecting coal powder in railway tunnels. Background Art

[0002] Railway tunnel coal powder cleaning and collection refers to the regular or irregular cleaning of coal powder generated during train transportation in railway tunnels, and the collection of the cleaned coal powder. The collected coal powder is stored in a collection bin and then transported to a designated location for unloading.

[0003] When the existing coal powder cleaning and collecting bin is unloading, there is a certain cohesive force and friction between the coal powder particles. These forces will gradually accumulate during the coal powder accumulation process. When reaching a certain level, they will hinder the smooth flow of the coal powder and cause the collecting bin to be blocked when unloading. At the same time, the coal powder is affected by humidity or viscosity, and will clump during storage. The fluidity of the agglomerated coal powder becomes poor, and it is difficult to be discharged normally through the unloading equipment. The agglomerated material will directly affect the unloading work of the collecting bin, resulting in poor unloading or complete blockage, increasing the difficulty of cleaning and downtime.

[0004] Therefore, an anti-blocking unloading device based on coal powder cleaning and collection in railway tunnels is proposed to solve the above problems. Summary of the invention

[0005] In view of this, the technical problem to be solved by the present invention is to propose an anti-clogging unloading device based on coal powder cleaning and collection in railway tunnels to solve the problem that the coal powder collection bin in the prior art is prone to blockage during unloading.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-blocking unloading device based on coal powder cleaning and collection in railway tunnels, comprising a storage bin, a discharge pipe is fixedly connected to the bottom of the storage bin, a feed pipe is fixedly connected to the outer surface of the storage bin, and further comprising: a first auxiliary unloading mechanism and a second auxiliary unloading mechanism, wherein the second auxiliary unloading mechanism is driven by the first auxiliary unloading mechanism;

[0007] The first auxiliary unloading mechanism and the second auxiliary unloading mechanism are both used to assist the storage bin in unloading.

[0008] Preferably, the first auxiliary unloading mechanism includes a driving motor, the driving motor is fixedly connected to the top of the storage bin body, a driving shaft is rotatably connected to the top of the inner wall of the storage bin body, the driving shaft is fixedly connected to the output end of the driving motor, a unloading shaft is inserted into the bottom of the driving shaft, and a guide bar is symmetrically fixedly connected to the outer surface of the unloading shaft, and the guide bar is slidably connected to the driving shaft.

[0009] Preferably, a return spring is fixedly connected between the top end of the unloading shaft and the driving shaft, a partition is fixedly connected between the inner walls of the storage bin, a cavity is arranged inside the unloading shaft, an inflation tube is symmetrically arranged on the outer surface of the unloading shaft, a one-way air outlet valve is fixedly connected between the inflation tube and the unloading shaft, the inflation tube is fixedly connected to the unloading shaft via the one-way air outlet valve, and a one-way air inlet valve is arranged on the outer surface of the inflation tube.

[0010] Preferably, a piston is slidably connected to the inner surface of the inflation tube, a sliding column is fixedly connected to one side of the piston, and a compression spring is fixedly connected between the sliding column and the inflation tube.

[0011] Preferably, a T-shaped connecting rod is fixedly connected between the inflation tube and the discharge shaft, and balls are movably connected to the bottom end of the T-shaped connecting rod and one end of the sliding column. A guide ring is fixedly connected to the top of the partition, and the inner surface of the guide ring is configured to be wavy.

[0012] Preferably, a fixing ring is fixedly connected to the top of the partition, columnar protrusions are fixedly connected to the top of the fixing ring at equal intervals, the balls are respectively abutted against the inner surface of the guide ring and the top of the fixing ring, a switching tube is fixedly connected to the outer surface of the unloading shaft at equal intervals, an insertion strip is fixedly connected to the bottom of the unloading shaft, air outlet holes are opened at equal intervals on the outer surface of the switching tube, a protective net is arranged in the air outlet holes, and protrusions are fixedly connected to the outer surface of the insertion strip at equal intervals.

[0013] Preferably, the second auxiliary unloading mechanism includes an arc groove, which is symmetrically opened on the inner surface of the storage bin, and a threaded rod is rotatably connected between the arc grooves. The outer surface of the threaded rod and the outer surface of the drive shaft are fixedly connected with a pulley, and the pulley and the belt are transmission-connected with a belt.

[0014] Preferably, an arc rod is slidably connected inside the pulley, a semicircular protrusion is equidistantly fixedly connected to one side of the arc groove, mounting grooves are equidistantly provided on the arc rod, a rotating rod is rotatably connected to one side of the mounting groove, and a striking head is slidably connected inside the mounting groove.

[0015] Preferably, one side of the striking head is symmetrically fixedly connected with an L-shaped rod, the end of the rotating rod close to the L-shaped rod is symmetrically fixedly connected with an extrusion block, a striking spring is fixedly connected between the striking head and the mounting groove, one side of the L-shaped rod is set as an inclined surface, the side of the extrusion block close to the L-shaped rod is set as an arc surface, and the extrusion block is in contact with the adjacent L-shaped rod inclined surface.

[0016] Compared with the prior art, the present invention provides an anti-blocking unloading device based on coal powder cleaning and collection in railway tunnels, which has the following beneficial effects:

[0017] 1. During the rotation of the discharge shaft, the toggle pipe stirs the coal powder inside the storage bin, and at the same time, the coal powder is blown through the air outlet of the toggle pipe. Since coal powder is prone to compaction or accumulation during storage or transportation, resulting in reduced fluidity, stirring can effectively destroy the agglomeration structure of coal powder, making it looser and improving fluidity. At the same time, the impact of airflow is used to create gaps between the mutually squeezed coal powder particles, further improving the fluidity of coal powder during unloading, preventing blockage during unloading, and facilitating the smooth unloading and subsequent treatment of coal powder.

[0018] 2. By moving the toggle tube up and down, the stirring range of the toggle tube on the coal powder can be increased, and the uniformity of breaking the coal powder agglomeration can be improved. At the same time, by moving the insert rod up and down, the insert rod is located inside the discharge pipe. When the insert rod moves up and down, the coal powder material in the discharge pipe can be inserted, so that the original tight stacking structure of the coal powder in the discharge pipe is broken, so that the coal powder particles that originally supported each other and were in close contact become loose, making it easier for the coal powder to be discharged from the discharge pipe, thereby improving the efficiency of coal powder discharge;

[0019] 3. During the unloading process of coal powder, some coal powder adhering to the wall of the storage bin can be removed by vibration, thereby improving the efficiency of coal powder unloading and the discharge rate of coal powder, preventing excessive adhesion of coal powder, which leads to a large difference between the coal powder discharge amount and the actual amount, and preventing material waste. At the same time, excessive adhesion of coal powder will increase the difficulty and workload of cleaning the silo. Reducing adhesion by vibration can reduce the frequency and difficulty of cleaning work, saving manpower and time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 For the present invention Figure 1 Partial cross-sectional structural diagram;

[0022] Figure 3 For the present invention Figure 2 Partial three-dimensional structure diagram;

[0023] Figure 4 This is a three-dimensional structural diagram of the lower end of the discharge shaft of the present invention;

[0024] Figure 5 This is a cross-sectional structural diagram of the top of the storage bin body of the present invention;

[0025] Figure 6 This is a cross-sectional structural diagram of the arc groove of the present invention;

[0026] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0027] In the figure:

[0028] 1. Storage silo; 2. Discharge pipe;

[0029] 301, driving motor; 302, driving shaft; 303, unloading shaft; 3031, guide strip; 304, partition; 305, return spring; 306, inflation tube; 307, piston; 308, sliding column; 309, ball; 310, compression spring; 311, guide ring; 312, T-shaped connecting rod; 313, fixing ring; 314, columnar protrusion; 315, toggle tube; 316, insert strip;

[0030] 401, arc groove; 402, pulley; 403, belt; 404, threaded rod; 405, arc rod; 406, semicircular protrusion; 407, mounting groove; 408, rotating rod; 409, knocking head; 410, L-shaped rod; 411, extrusion block; 412, knocking spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0033] Embodiments of the present invention

[0034] Please refer to Figures 1 to 7 As shown:

[0035] In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides an anti-blocking unloading device based on the cleaning and collection of coal powder in a railway tunnel, comprising a storage bin 1, a unloading pipe 2 is fixedly connected to the bottom of the storage bin 1, a feed pipe is fixedly connected to the outer surface of the storage bin 1, and further comprising: a first auxiliary unloading mechanism and a second auxiliary unloading mechanism, the second auxiliary unloading mechanism is driven by the first auxiliary unloading mechanism;

[0036] The first auxiliary unloading mechanism and the second auxiliary unloading mechanism are both used to assist the storage bin 1 in unloading.

[0037] The first auxiliary unloading mechanism includes a driving motor 301, which is fixedly connected to the top of the storage bin body 1. A driving shaft 302 is rotatably connected to the top of the inner wall of the storage bin body 1. The driving shaft 302 is fixedly connected to the output end of the driving motor 301. A unloading shaft 303 is inserted at the bottom of the driving shaft 302. A guide bar 3031 is symmetrically fixedly connected to the outer surface of the unloading shaft 303. The guide bar 3031 is slidably connected to the driving shaft 302.

[0038] A return spring 305 is fixedly connected between the top of the discharge shaft 303 and the driving shaft 302, a partition 304 is fixedly connected between the inner walls of the storage bin body 1, a cavity is arranged inside the discharge shaft 303, an air-filling pipe 306 is symmetrically arranged on the outer surface of the discharge shaft 303, a one-way air outlet valve is fixedly connected between the air-filling pipe 306 and the discharge shaft 303, the air-filling pipe 306 is fixedly connected to the discharge shaft 303 through the one-way air outlet valve, and a one-way air inlet valve is arranged on the outer surface of the air-filling pipe 306;

[0039] A piston 307 is slidably connected to the inner surface of the inflation tube 306, a sliding column 308 is fixedly connected to one side of the piston 307, a compression spring 310 is fixedly connected between the sliding column 308 and the inflation tube 306, a T-shaped connecting rod 312 is fixedly connected between the inflation tube 306 and the discharge shaft 303, a ball 309 is movably connected to the bottom end of the T-shaped connecting rod 312 and one end of the sliding column 308, a guide ring 311 is fixedly connected to the top of the partition 304, and the inner surface of the guide ring 311 is set to be wavy;

[0040] A fixing ring 313 is fixedly connected to the top of the partition 304, and a cylindrical protrusion 314 is fixedly connected to the top of the fixing ring 313 at an equal distance. The ball 309 is respectively abutted against the inner surface of the guide ring 311 and the top of the fixing ring 313. A toggle tube 315 is fixedly connected to the outer surface of the discharge shaft 303 at an equal distance. An insertion strip 316 is fixedly connected to the bottom of the discharge shaft 303. Air outlet holes are equidistantly provided on the outer surface of the toggle tube 315, and a protective net is arranged in the air outlet hole. Raised blocks are fixedly connected to the outer surface of the insertion strip 316 at an equal distance.

[0041] The implementation of this embodiment improves the fluidity of coal powder during unloading, prevents blockage during coal powder unloading, and facilitates the smooth unloading and subsequent processing of coal powder, so that the coal powder particles that originally supported each other and were in close contact become loose, making it easier for coal powder to be discharged from the unloading pipe 2, thereby improving the efficiency of coal powder unloading.

[0042] For further examples, please refer to Figures 1 to 7 As shown:

[0043] The second auxiliary unloading mechanism includes an arc groove 401, which is symmetrically opened on the inner surface of the storage bin body 1, and a threaded rod 404 is rotatably connected between the arc grooves 401, and the outer surface of the threaded rod 404 and the outer surface of the driving shaft 302 are fixedly connected with a pulley 402, and the pulley 402 and the belt 403 are both transmission-connected with the belt 403;

[0044] An arc rod 405 is slidably connected in the pulley 402, a semicircular protrusion 406 is equidistantly fixedly connected to one side of the arc groove 401, and mounting grooves 407 are equidistantly opened on the arc rod 405, a rotating rod 408 is rotatably connected to one side of the mounting groove 407, and a knocking head 409 is slidably connected in the mounting groove 407;

[0045] An L-shaped rod 410 is symmetrically fixedly connected to one side of the knocking head 409, an extrusion block 411 is symmetrically fixedly connected to one end of the rotating rod 408 close to the L-shaped rod 410, a knocking spring 412 is fixedly connected between the knocking head 409 and the mounting groove 407, one side of the L-shaped rod 410 is set as an inclined surface, and the side of the extrusion block 411 close to the L-shaped rod 410 is set as an arc surface, and the extrusion block 411 is in contact with the adjacent inclined surface of the L-shaped rod 410;

[0046] The implementation of this embodiment improves the coal powder discharge rate, prevents excessive coal powder adhesion resulting in a large difference between the coal powder discharge amount and the actual amount, and prevents material waste. At the same time, excessive coal powder adhesion will increase the difficulty and workload of cleaning the silo. Reducing adhesion through vibration can reduce the frequency and difficulty of cleaning work, saving manpower and time costs.

[0047] Everything in the above example works like this:

[0048] In the initial state: an external valve is provided at the bottom of the discharge pipe 2 and is in a closed state. When the knocking spring 412 is in a normal state, the knocking head 409 contacts the storage bin body 1 .

[0049] The following is the working process of the first auxiliary unloading mechanism assisting the storage bin 1 in unloading:

[0050] When it is necessary to discharge the storage bin body 1, the external valve at the bottom of the discharge pipe 2 is opened, the discharge pipe 2 is opened, and the pulverized coal material in the storage bin body 1 gradually flows out of the discharge pipe 2 under the influence of gravity, and the drive motor 301 is started at the same time. The drive motor 301 rotates to drive the drive shaft 302 to rotate. When the drive shaft 302 rotates, the guide bar 3031 slides up and down in the drive shaft 302, so the guide bar 3031 can drive the discharge shaft 303 to rotate. When the discharge shaft 303 rotates, it drives the inflation tube 306 to rotate at the same time, so that the sliding column 308 drives the ball 309 to slide along the wavy inner surface of the guide ring 311, and then through the cooperation of the wavy inner surface and the compression spring 310, the sliding column 308 can push the piston 307 to slide back and forth in the inflation tube 306, and then in the one-way air intake With the cooperation of the valve and the one-way air outlet valve, external gas continuously enters the inflation pipe 306 through the one-way air inlet valve, then enters the cavity of the discharge shaft 303 from the one-way air outlet valve, and is finally blown out through the air outlet hole on the toggle tube 315. In the process of the rotation of the discharge shaft 303, the toggle tube 315 stirs the coal powder inside the storage bin 1, and blows air to the coal powder through the air outlet hole of the toggle tube 315. Since the coal powder is prone to compaction or accumulation during storage or transportation, resulting in reduced fluidity, the agglomeration structure of the coal powder can be effectively destroyed by stirring, making it looser and improving fluidity. At the same time, by utilizing the impact of airflow, gaps are generated between the mutually squeezed coal powder particles, further improving the fluidity of the coal powder during unloading, preventing blockage during unloading, and facilitating the smooth unloading and subsequent processing of the coal powder.

[0051] In addition, when the driving shaft 302 drives the discharge shaft 303 to rotate, the T-shaped connecting rod 312 can be driven to rotate at the same time, so that the ball 309 at the bottom of the T-shaped connecting rod 312 is constantly close to and away from the cylindrical protrusion 314, and then the T-shaped connecting rod 312 and the discharge shaft 303 can be pushed by the squeezing of the cylindrical protrusion 314 to slide upward under the guidance of the guide bar 3031, and the return spring 305 is compressed. When the ball 309 is away from the cylindrical protrusion 314, the return spring 305 rebounds and makes the ball 309 contact with the fixing ring 313 again. Then, when the discharge shaft 303 rotates, the discharge shaft 303 can be realized under the cooperation of the cylindrical protrusion 314 and the return spring 305. The up and down reciprocating motion, when the discharge shaft 303 slides up and down, can drive the insertion bar 316 and then move the tube 315 up and down. By moving the tube 315 up and down, the stirring range of the toggle tube 315 on the coal powder can be increased, and the uniformity of breaking the coal powder agglomeration can be improved. At the same time, by the up and down movement of the insertion bar 316, the insertion bar 316 is located inside the discharge pipe 2. When the insertion bar 316 moves up and down, the coal powder material in the discharge pipe 2 can be inserted, so that the original tight stacking structure of the coal powder in the discharge pipe 2 is broken, so that the coal powder particles that originally supported each other and were in close contact become loose, so that the coal powder is easier to be discharged from the discharge pipe 2, thereby improving the efficiency of coal powder unloading;

[0052] Furthermore, by setting the ball 309, when the discharge shaft 303 rotates and slides up and down, the ball 309 at one end of the sliding column 308 can continuously rotate on the wave surface of the guide ring 311, thereby reducing the friction when contacting with the guide ring 311 and improving the smoothness of the work. Similarly, when the ball 309 at the bottom of the T-shaped connecting rod 312 contacts with the columnar protrusion 314, the smoothness of the contact with the columnar protrusion 314 is also improved.

[0053] Please refer to the above working process Figures 1 to 7 .

[0054] The following is the working process of the second auxiliary unloading mechanism assisting the storage bin 1 in unloading:

[0055] Furthermore, when the coal powder in the storage bin 1 is being unloaded, the driving motor 301 drives the driving shaft 302 to rotate, and the rotation of the pulley 402 and the belt 403 can simultaneously drive the threaded rod 404 to rotate. When the threaded rod 404 rotates, the arc rod 405 is threadedly connected to the threaded rod 404, so that the arc rod 405 can start to slide downward under the guidance of the arc groove 401. When the arc rod 405 slides downward in the arc groove 401, the rotating rod 408 gradually approaches The semicircular protrusion 406, under the push of the arc surface of the semicircular protrusion 406, can make the end of the rotating rod 408 close to the semicircular protrusion 406 rotate upward, and then make the other end rotate downward, so that the arc surface of the extrusion block 411 at the bottom of the rotating rod 408 contacts the inclined surface of the L-shaped rod 410 at the lower end of the knocking head 409, and then the arc surface of the extrusion block 411 pushes the inclined surface of the L-shaped rod 410, which can drive the L-shaped rod 410 and the knocking head 409 to slide toward the semicircular protrusion 406, so that the knocking head 409 The striking head 409 is no longer in contact with the storage bin body 1, the striking spring 412 is compressed, and when the rotating rod 408 gradually moves away from the semicircular protrusion 406, the arc surface of the semicircular protrusion 406 no longer produces an extrusion force on the rotating rod 408. At this time, under the rebound of the striking spring 412, the striking head 409 and the L-shaped rod 410 are pushed to quickly approach the storage bin body 1 and strike, so that the storage bin body 1 can be vibrated by striking, and at the same time, the inclined surface of the L-shaped rod 410 will squeeze the arc surface of the extrusion block 411, so that the extrusion block 411 is reset, and then during the coal powder unloading process, part of the coal powder adhering to the inner wall of the storage bin body 1 can be fallen off by vibration, thereby improving the efficiency of coal powder unloading, and also improving the coal powder discharge rate, preventing the situation where the coal powder discharge amount and the actual amount have a large difference due to excessive coal powder adhesion, and preventing material waste. At the same time, excessive coal powder adhesion will increase the difficulty and workload of cleaning the bin, and reducing adhesion by vibration can reduce the frequency and difficulty of cleaning work, saving manpower and time costs;

[0056] Furthermore, when the rotating rod 408 slides to the bottom of the arc groove 401 and needs to be reset, the rotating rod 408 will be squeezed by the semicircular protrusion 406, causing the end of the rotating rod 408 close to the semicircular protrusion 406 to rotate downward, and then the squeezing block 411 on the top of the rotating rod 408 will squeeze the squeezing block 411 on the upper end of the knocking head 409, thereby continuing to drive the knocking head 409 away from the storage bin body 1, and then when the rotating rod 408 is away from the semicircular protrusion 406, under the rebound force of the knocking spring 412, the knocking head 409 continues to knock the storage bin body 1, causing the storage bin body 1 to vibrate, thereby improving the utilization rate of the rotating rod 408 and further improving the cleaning effect.

[0057] Please refer to the above working process Figures 1 to 7 .

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-blocking unloading device based on coal powder cleaning and collection in railway tunnels, comprising a storage silo (1), a discharge pipe (2) fixedly connected to the bottom of the storage silo (1), and a feed pipe fixedly connected to the outer surface of the storage silo (1), characterized in that: It also includes: a first auxiliary unloading mechanism and a second auxiliary unloading mechanism, wherein the second auxiliary unloading mechanism is driven by the first auxiliary unloading mechanism; The first auxiliary unloading mechanism and the second auxiliary unloading mechanism are both used to assist the material storage bin (1) in unloading.

2. The anti-blocking unloading device based on coal powder cleaning and collection in railway tunnel according to claim 1 is characterized by: The first auxiliary unloading mechanism comprises a driving motor (301), the driving motor (301) is fixedly connected to the top of the storage bin body (1), a driving shaft (302) is rotatably connected to the top of the inner wall of the storage bin body (1), the driving shaft (302) is fixedly connected to the output end of the driving motor (301), a unloading shaft (303) is inserted into the bottom of the driving shaft (302), and a guide bar (3031) is symmetrically fixedly connected to the outer surface of the unloading shaft (303), and the guide bar (3031) is slidably connected to the driving shaft (302).

3. The anti-blocking unloading device based on coal powder cleaning and collection in railway tunnel according to claim 2 is characterized by: A return spring (305) is fixedly connected between the top end of the discharge shaft (303) and the drive shaft (302), a partition (304) is fixedly connected between the inner walls of the storage bin body (1), a cavity is arranged inside the discharge shaft (303), an air charging tube (306) is symmetrically arranged on the outer surface of the discharge shaft (303), a one-way air outlet valve is fixedly connected between the air charging tube (306) and the discharge shaft (303), the air charging tube (306) is fixedly connected to the discharge shaft (303) via the one-way air outlet valve, and a one-way air inlet valve is arranged on the outer surface of the air charging tube (306).

4. The anti-blocking unloading device based on coal powder cleaning and collection in railway tunnel according to claim 3 is characterized by: The inner surface of the inflation tube (306) is slidably connected to a piston (307), one side of the piston (307) is fixedly connected to a sliding column (308), and a compression spring (310) is fixedly connected between the sliding column (308) and the inflation tube (306).

5. The anti-blocking unloading device based on the cleaning and collection of coal powder in railway tunnels according to claim 4 is characterized by: A T-shaped connecting rod (312) is fixedly connected between the inflation tube (306) and the discharge shaft (303), and a ball (309) is movably connected to the bottom end of the T-shaped connecting rod (312) and one end of the sliding column (308). A guide ring (311) is fixedly connected to the top of the partition (304), and the inner surface of the guide ring (311) is configured to be wavy.

6. The anti-blocking unloading device based on the cleaning and collection of coal powder in railway tunnels according to claim 5 is characterized by: A fixing ring (313) is fixedly connected to the top of the partition (304), and a columnar protrusion (314) is fixedly connected to the top of the fixing ring (313) at equal intervals. The ball (309) is respectively in contact with the inner surface of the guide ring (311) and the top of the fixing ring (313). A toggle tube (315) is fixedly connected to the outer surface of the discharge shaft (303) at equal intervals. A plug strip (316) is fixedly connected to the bottom of the discharge shaft (303). Air outlet holes are opened at equal intervals on the outer surface of the toggle tube (315), and a protective net is arranged in the air outlet hole. The outer surface of the plug strip (316) is fixedly connected with protrusion blocks at equal intervals.

7. The anti-blocking unloading device based on coal powder cleaning and collection in railway tunnel according to claim 2 is characterized by: The second auxiliary unloading mechanism comprises an arcuate groove (401), wherein the arcuate groove (401) is symmetrically arranged on the inner surface of the storage bin body (1), a threaded rod (404) is rotatably connected between the arcuate grooves (401), a pulley (402) is fixedly connected to the outer surface of the threaded rod (404) and the outer surface of the driving shaft (302), and a belt (403) is transmission-connected between the pulley (402) and the belt (403).

8. The anti-blocking unloading device based on the cleaning and collection of coal powder in railway tunnels according to claim 7 is characterized by: An arc rod (405) is slidably connected inside the pulley (402), a semicircular protrusion (406) is equidistantly fixedly connected to one side of the arc groove (401), mounting grooves (407) are equidistantly provided on the arc rod (405), a rotating rod (408) is rotatably connected to one side of the mounting groove (407), and a striking head (409) is slidably connected inside the mounting groove (407).

9. The anti-blocking unloading device based on coal powder cleaning and collection in railway tunnel according to claim 8 is characterized by: One side of the knocking head (409) is symmetrically fixedly connected to an L-shaped rod (410); one end of the rotating rod (408) close to the L-shaped rod (410) is symmetrically fixedly connected to an extrusion block (411); a knocking spring (412) is fixedly connected between the knocking head (409) and the mounting groove (407); one side of the L-shaped rod (410) is arranged as an inclined surface; one side of the extrusion block (411) close to the L-shaped rod (410) is arranged as an arc surface; and the extrusion block (411) contacts the adjacent inclined surface of the L-shaped rod (410).

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