CN218622056U - Railway tunnel coal dust removing system - Google Patents

Abstract

The utility model relates to a railway tunnel coal dust clearance system, relates to the technical field of industry clearance equipment, is used for cleaing away the coal dust in the railway tunnel, including first clear subassembly and collection subassembly, first clear subassembly includes first preset pipeline, seals up and blocks up and dust absorption hose, first preset pipeline sets up in the railway tunnel, set up a plurality of on the first preset pipeline and inhale the material mouth, the inner wall of inhaling the material mouth can dismantle the connection seal up, also can dismantle the connection with dust absorption hose; the collecting assembly comprises a gravity blanking device, a collecting box and a vacuum pump machine, one end of the first preset pipeline is closed, the other end of the first preset pipeline is communicated with the gravity blanking device, the bottom of the gravity blanking device is communicated with the collecting box, and the vacuum pump machine is also communicated with the gravity blanking device. This application can improve the efficiency of cleaing away to railway tunnel coal dust.

Description

Railway tunnel coal dust removing system

Technical Field

The application relates to the technical field of industrial cleaning equipment, in particular to a railway tunnel coal dust cleaning system.

Background

Along with the increase of the coal transportation amount of the railway and the increase of the running speed, the coal dust and some coal blocks on the coal car with the open-shaped carriage can be scattered on the railway line in the transportation process, and especially when the coal car enters and exits the tunnel and the car is in wrong operation in the tunnel, the situation that the coal dust is scattered on two sides of the railway line under the driving of air flow is more serious due to the change of air pressure. The coal dust that spills not only pollutes the interior operation environment of tunnel, and the coal dust is long-pending tired day and month, can bury the fastener gradually, pollutes the railway roadbed, causes the hidden danger to railway line safety, seriously influences heavy-duty train's driving safety.

At present to the railway coal dust, have dedicated train clearing device, but use at every turn and need special train to open and clear away, the long-pending coal is different in different tunnels moreover, inconvenient and consume great.

In actual work, coal dust on two sides of a railway line is cleaned in a targeted manner mainly during railway centralized maintenance construction, and the cleaning work is mainly carried out by manual labor. But the labor intensity of manual cleaning is high, the working environment is severe, and the cleaning efficiency is greatly influenced.

SUMMERY OF THE UTILITY MODEL

In order to improve the efficiency of the coal dust clearance in the railway tunnel, this application provides a railway tunnel coal dust clearance system.

The application provides a railway tunnel coal dust clearance system adopts following technical scheme:

a railway tunnel coal dust removing system is used for removing coal dust in a railway tunnel and comprises a first removing assembly and a collecting assembly, wherein the first removing assembly comprises a first preset pipeline, a seal plug and a dust collection hose, the first preset pipeline is arranged in the railway tunnel, a plurality of suction ports are formed in the first preset pipeline, and the inner walls of the suction ports can be detachably connected with the seal plug and can also be detachably connected with the dust collection hose; the collecting assembly comprises a gravity blanking device, a collecting box and a vacuum pump, one end of the first preset pipeline is closed, the other end of the first preset pipeline is communicated with the gravity blanking device, the bottom of the gravity blanking device is communicated with the collecting box, and the vacuum pump is also communicated with the gravity blanking device.

By adopting the technical scheme, dust can be absorbed in the tunnel through the handheld dust absorption hose, so that the efficiency of removing coal dust is improved; specifically, through the arrangement of a first preset pipeline and a vacuum pump, suction force can be provided through the vacuum pump, and therefore coal dust is sucked into the first preset pipeline through a dust suction hose; through the arrangement of the gravity blanking device and the collecting box, the coal dust sucked into the first preset pipeline can be collected into the collecting box.

Optionally, a cleaning dust collector is communicated between the gravity blanking device and the vacuum pump.

Through adopting above-mentioned technical scheme, can remove dust through the air that clean dust remover enters into the vacuum pump machine from the gravity blanking ware, avoid the vacuum pump machine to take place to damage, purified the air of discharging in the atmosphere through the vacuum pump machine simultaneously, have certain environmental protection meaning.

Optionally, the system further comprises a second cleaning assembly, wherein the second cleaning assembly comprises a second preset pipeline, a fan, a buffer tank and a conveying pipeline, the second preset pipeline is also arranged in the railway tunnel, a plurality of air outlets are formed in the second preset pipeline, one end of the second preset pipeline is closed, and the other end of the second preset pipeline is connected with the fan; the buffer box is fixedly arranged at the top of one end of the collecting assembly close to the railway tunnel, the buffer box is far away from one side of the collecting assembly and is in an open shape, one end of the conveying pipeline is communicated with the buffer box, and the other end of the conveying pipeline is communicated with the gravity blanking device.

Through adopting above-mentioned technical scheme, when the train passes through, can predetermine the pipeline through the fan to the second and blow, through the cooperation of dual wind-force, blow the buffer tank with the partial coal dust in the tunnel under the effect of wind power in, the rethread buffer tank is collected the coal dust to the collection incasement, has further improved the efficiency of cleaing away of coal dust in the tunnel.

Optionally, the buffer tank is annular, and the top of the buffer tank is fixedly connected with the top of the tunnel.

Through adopting above-mentioned technical scheme, can improve the collection scope of baffle-box to further improve the effect of cleaing away to coal dust in the tunnel.

Optionally, a sensor is fixedly arranged at the bottom of one end, far away from the collecting assembly, of the railway tunnel, the sensor is used for detecting signals when a train passes through the tunnel, and the fan and the vacuum pump are both electrically connected with the sensor.

By adopting the technical scheme, the passing signals of the train can be collected through the sensor, when the train passes through, the sensor transmits the signals to the fan and the vacuum pump, and the fan and the vacuum pump are matched with wind power generated by running of the train to collect coal dust into the collection box through the buffer box.

Optionally, the sealing plug further comprises a first connecting assembly, the sealing plug is detachably and fixedly connected with the first preset pipeline through the first connecting assembly, and the first connecting assembly comprises a first clamping block and a first spring; the plugging plug is provided with a first thread groove, and the plugging plug is in threaded connection with the side wall of the inner wall of the material suction port through the first thread groove; the side wall of the sealing plug below the first thread groove is provided with a first sliding groove, the first clamping block is arranged in the first sliding groove in a sliding mode, and the first spring is arranged between the first clamping block and the groove bottom of the first sliding groove.

Through adopting above-mentioned technical scheme, can dismantle fixed connection with first pipeline of predetermineeing through first coupling assembling will seal the jam, when shutoff stopper threaded connection is in inhaling the material mouth, first fixture block can with the first inner wall butt of predetermineeing the pipeline to can prevent to seal and block up the production under the effect of external force and become flexible.

Optionally, the first connecting assembly further includes a first limiting strip and a first pressing rod, a second chute is formed in the side wall of the plug below the first thread groove and is opposite to the first chute in the vertical direction, the first pressing rod is slidably disposed in the second chute, a limiting groove is formed between the first chute and the second chute, the first limiting strip is slidably disposed in the limiting groove, one end of the first limiting strip is fixedly connected to the pressing rod, and the other end of the first limiting strip is fixedly connected to the first clamping block.

Through adopting above-mentioned technical scheme, can drive first fixture block and remove in first spout through pressing down the pressure lever to the simple operation nature of installation and dismantlement to the shutoff stopper has been improved.

Optionally, the dust collection hose is close to one end fixedly connected with connecting plug of first predetermined pipeline, be equipped with the second thread groove on the lateral wall of connecting plug, the hose can pass through the second thread groove (with the inner wall threaded connection who inhales the material mouth.

Through adopting above-mentioned technical scheme, can dismantle fixed connection with hose and first pipeline of predetermineeing.

Optionally, one end of the first preset pipeline close to the gravity feeder is provided with a control valve.

Through adopting above-mentioned technical scheme, can drive the interior suction of pipeline through the control valve in the first pipeline of predetermineeing, when the second when working, can avoid producing the suction in the first pipeline of predetermineeing to avoid the first pipeline of predetermineeing to damage, improve the first life of predetermineeing the pipeline.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the first cleaning assembly and the collecting assembly, dust can be sucked in the tunnel through the handheld dust suction hose, so that the coal dust cleaning efficiency is improved;

2. through the arrangement of the second cleaning component, when a train passes through, air can be blown into the second preset pipeline through the fan, part of coal dust in the tunnel is blown into the buffer tank under the action of wind power through the matching of double wind power, and then the coal dust is collected into the collection tank through the buffer tank, so that the cleaning efficiency of the coal dust in the tunnel is further improved;

3. through the setting of sensor, enough pass through the signal of sensor collection train, when the train passes through, the sensor passes through signal transmission to fan and vacuum pump machine, and fan and vacuum pump machine cooperation train travel the wind-force of production with the coal dust through the baffle-box collect to the collecting box in.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;

FIG. 3 is a schematic structural diagram of a plugging plug according to an embodiment of the present application;

FIG. 4 is a partial schematic view of a suction hose according to an embodiment of the present invention;

fig. 5 is a schematic overall structure diagram of another view angle according to the embodiment of the present application.

Description of the reference numerals: 1. a first purge assembly; 11. a first preset pipeline; 111. a material sucking port; 112. a control valve; 12. blocking; 121. a first thread groove; 122. a first chute; 123. a second chute; 124. a limiting groove; 13. a dust collection hose; 14. a connecting plug; 141. a second thread groove; 2. a second purge assembly; 21. a second preset pipeline; 211. an air outlet; 22. a fan; 23. a buffer tank; 24. a sensor; 25. a delivery pipe; 3. a collection assembly; 31. a gravity blanking device; 32. a collection box; 33. cleaning a dust remover; 34. a vacuum pump machine; 341. an exhaust hole; 4. a first connection assembly; 41. a first clamping block; 42. a first spring; 43. a first pressing lever; 44. a first limit strip; 5. a railway tunnel; 51. a rail.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses railway tunnel coal dust clearance system. Referring to fig. 1, a railway tunnel coal dust removing system is used for removing coal dust in a railway tunnel 5 and comprises a first removing component 1, a second removing component 2 and a collecting component 3, wherein the first removing component 1 and the second removing component 2 are used for removing the coal dust in the railway tunnel 5, the first removing component 1 and the second removing component 2 are connected with the collecting component 3, and the collecting component 3 is used for collecting the coal dust removed by the first removing component 1 and the second removing component 2.

Referring to fig. 1 and 2, a rail 51 is arranged in the railway tunnel 5, and the first cleaning assembly 1 comprises a first preset pipeline 11, a blocking plug 12 and a dust suction hose 13; wherein, first predetermined pipeline 11 is provided with one at least, and first predetermined pipeline 11 is fixed to be set up by rail 51, the length direction of first predetermined pipeline 11 is the same with the length direction of rail 51, it inhales material mouthful 111 to have seted up a plurality of on the first predetermined pipeline 11, during the in-service use, it also can the slope setting to inhale the inner wall of material mouthful 111, its one end orientation that keeps away from first predetermined pipeline 11 inclines towards the direction of keeping away from collection subassembly 3, be convenient for inhale the coal dust in collecting subassembly 3, inhale material mouthful 111 and be located the top of first predetermined pipeline 11 and along the length direction evenly distributed of first predetermined pipeline 11.

Referring to fig. 2 and 3, the cross section of the blocking plug 12 is circular, the size of the blocking plug is matched with the size of the material suction port 111, the blocking plug can be fixed in the material suction port 111, the first connecting component 4 is arranged on the blocking plug 12, and the blocking plug 12 is detachably and fixedly connected with the first preset pipeline 11 through the first connecting component 4; the first connecting assembly 4 includes a first latch 41, a first spring 42, a first stopper bar 44, and a first pressing lever 43.

Referring to fig. 2 and 3, a first thread groove 121 is formed in the center of the side wall of the sealing plug 12, and the sealing plug 12 can be in threaded connection with the inner side wall of the suction port 111 through the first thread groove 121; a first sliding groove 122 is formed in the side wall of the plug 12 above the first threaded groove 121, the depth direction of the first sliding groove 122 is located in the horizontal direction and perpendicular to the length direction of the plug 12, the first fixture block 41 is long and has the same length direction as the depth direction of the first sliding groove 122, the first fixture block 41 is slidably disposed in the first sliding groove 122 along the depth direction of the first sliding groove 122, the first spring 42 is also disposed in the first sliding groove 122 and is located between the first fixture block 41 and the groove bottom of the first sliding groove 122, the length direction of the first spring 42 is also the same as the length direction of the first fixture block 41, one end of the first spring 42 is fixedly connected with the first fixture block 41, and the other end of the first spring is fixedly connected with the groove bottom of the first sliding groove 122.

Referring to fig. 2 and 3, a second sliding groove 123 is formed in the side wall of the sealing plug 12 below the first threaded groove 121, the second sliding groove 123 is disposed opposite to the first sliding groove 122 in the vertical direction, the depth direction of the second sliding groove 123 is parallel to the depth direction of the first sliding groove 122, the length direction of the first pressing rod 43 is the same as the depth direction of the second sliding groove 123, and the first pressing rod 43 is slidably disposed in the second sliding groove 123 along the length direction of the second sliding groove 123; a limiting groove 124 is formed between the first sliding groove 122 and the second sliding groove 123, the length direction of the limiting groove 124 is parallel to the length direction of the plugging plug 12, the width direction of the limiting groove 124 is perpendicular to the depth direction of the first sliding groove 122 and the second sliding groove 123, the first limiting strip 44 is arranged in the limiting groove 124 in a sliding mode along the width direction of the limiting groove 124, the length direction of the first limiting strip 44 is the same as the length direction of the limiting groove 124, the top end of the first limiting strip 44 is fixedly connected with the first pressing rod 43, and the bottom end of the first limiting strip is fixedly connected with the first clamping block 41.

When one end of the first clamping block 41, which is far away from the first spring 42, is located in the first sliding groove 122, the first spring 42 is in a compressed state, and at this time, the sealing plug 12 can be placed into the suction port 111, or taken out from the suction port 111; when the first spring 42 is in a balanced state, one end of the first fixture block 41, which is far away from the first spring 42, is located outside the first sliding groove 122, and one end of the first fixture block 41, which is close to the first spring 42, is located inside the first sliding groove 122, and when the plugging plug 12 is fixed inside the material suction port 111, one side of the first fixture block 41, which is close to the inner wall of the first preset pipeline 11, is abutted against the inner wall of the first preset pipeline 11.

Referring to fig. 2 and 4, a connecting plug 14 is fixedly connected to one end of the dust collection hose 13 close to the first preset pipeline 11, a second thread groove 141 matched with the suction port 111 in size is formed in a side wall of the connecting plug 14, and the dust collection hose 13 can be connected in the suction port 111 through the second thread groove 141 in a threaded manner; the connecting plug 14 can be obliquely arranged in actual use, and one end of the connecting plug, which is far away from the first preset pipeline 11, is inclined towards the direction far away from the collecting component 3, so that coal dust can be sucked into the collecting component 3; in practice, the connecting plug 14 may also be a conical plug.

When the first cleaning assembly 1 is not used for cleaning coal dust, namely when the first cleaning assembly 1 is in an idle state, a sealing plug 12 is fixed in each first suction port 111; when the first cleaning component 1 is required to be used for cleaning coal dust, firstly, the dust collection position is confirmed, then the plugging plug 12 close to the position is taken out, and the step of taking out the plugging plug 12 is as follows: the first pressing rod 43 is pressed to drive the first fixture block 41 to enter the first sliding slot 122, at this time, the first spring 42 is in a compressed state, and then the sealing plug 12 is taken out from the suction port 111, and the dust collection hose 13 is screwed into the suction port 111.

Referring to fig. 1 and 5, the collection assembly 3 includes a gravity feeder 31, a collection tank 32, a cleaning dust collector 33, and a vacuum pump 34; the gravity blanking device 31, the collection box 32, the cleaning dust collector 33 and the vacuum pump 34 are all positioned outside the railway tunnel 5; one end of the first preset pipeline 11 is closed, the other end of the first preset pipeline is communicated with the gravity blanking device 31, and a control valve 112 for controlling whether the first preset pipeline 11 is communicated with the gravity blanking device 31 or not is fixedly installed at one end, close to the gravity blanking device 31, of the first preset pipeline 11; the collecting box 32 is located below the gravity blanking device 31 and is communicated with the gravity blanking device 31, the vacuum pump 34 is located on one side of the gravity blanking device 31, the cleaning dust remover 33 is located between the gravity blanking device 31 and the vacuum pump 34, the inlet end of the cleaning dust remover 33 is communicated with the gravity blanking device 31, the outlet end of the cleaning dust remover 33 is communicated with the vacuum pump 34, and the top of the vacuum pump 34 is provided with an exhaust hole 341.

When the first cleaning assembly 1 is used for cleaning coal dust, after the dust suction hose 13 is installed, the control valve 112 is opened, the vacuum pump 34, the gravity blanking device 31 and the cleaning dust collector 33 are started, at this time, the vacuum pump 34 generates suction, and a worker holds the dust suction hose 13 to suck dust in the tunnel.

Referring to fig. 1 and 5, the second cleaning assembly 2 includes a second preset pipeline 21, a fan 22, a buffer tank 23, a sensor 24 and a material conveying pipe 25, at least one second preset pipeline 21 is also provided, the second preset pipeline 21 is also provided on one side of the rail 51, the length direction of the second preset pipeline 21 is also parallel to the length direction of the rail 51, a plurality of obliquely arranged air outlets 211 are provided on the second preset pipeline 21 close to the oblique upper side of the rail 51, the plurality of air outlets 211 are uniformly distributed along the length direction of the second preset pipeline 21, one end of the second preset pipeline 21 is also closed, the closed end of the second preset pipeline 21 is located at one end far away from the collecting assembly 3, one end of the second preset pipeline close to the closed assembly is communicated with the fan 22, and the fan 22 is fixedly arranged on one side of the cleaning dust collector 33.

Referring to fig. 1 and 5, the buffer tank 23 is annular and is located at one end of the railway tunnel 5 close to the collecting assembly 3, the size of the buffer tank 23 is matched with the size of the top of the railway tunnel 5, the top of the buffer tank 23 is fixedly connected with the top of the railway tunnel 5, and one side of the buffer tank 23 far away from the collecting assembly 3 is in an opening shape; the bottom of buffer tank 23 communicates with gravity blanking ware 31, and sensor 24 is located the one end of keeping away from buffer tank 23 in railway tunnel 5, and sensor 24 fixes the bottom in railway tunnel 5, and sensor 24 is used for detecting whether there is the train to pass through, and fan 22 and vacuum pump 34 all with sensor 24 electric connection.

When a train enters the tunnel, the sensor 24 transmits a detection signal to the vacuum pump 34 and the fan 22, the fan 22 blows air into the second preset pipeline, the air in the second preset pipeline enters the railway tunnel 5 through the air outlet 211, the train drives the air in the railway tunnel 5 to flow through the tunnel, under the dual actions of the train wind power and the air outlet 211 wind power, coal dust in the railway tunnel 5 enters the buffer box 23, enters the gravity blanking device 31 from the buffer box 23 and enters the collection box 32.

The implementation principle of a railway tunnel coal dust removal system of the embodiment of the application is as follows: when the first cleaning assembly 1 is not used for cleaning coal dust, namely when the first cleaning assembly 1 is in an idle state, a sealing plug 12 is fixed in each first suction port 111; when the first cleaning component 1 is required to be used for cleaning coal dust, firstly, the dust collection position is confirmed, then the plugging plug 12 close to the position is taken out, and the step of taking out the plugging plug 12 is as follows: the pressing rod is pressed to drive the first clamping block 41 to enter the first sliding groove 122, at this time, the first spring 42 is in a compressed state, then the sealing plug 12 is taken out from the material suction port 111, and the dust collection hose 13 is connected into the material suction port 111 through threads.

When the first cleaning assembly 1 is used for cleaning coal dust, after the dust suction hose 13 is installed, the control valve 112 is opened, the vacuum pump 34, the gravity blanking device 31 and the dust cleaning and removing device 33 are started, at this time, the vacuum pump 34 generates suction, and a worker holds the dust suction hose 13 to suck dust in a tunnel.

When a train enters the tunnel, the sensor 24 transmits a detection signal to the vacuum pump 34 and the fan 22, the fan 22 blows air into the second preset pipeline, the air in the second preset pipeline enters the railway tunnel 5 through the air outlet 211, the train drives the air in the railway tunnel 5 to flow through the tunnel, under the dual actions of the train wind power and the air outlet 211 wind power, coal dust in the railway tunnel 5 enters the buffer box 23, enters the gravity blanking device 31 from the buffer box 23 and enters the collection box 32.

When the collecting assembly 3 is in operation, the gas entering the vacuum pump 34 from the gravity feeder 31 can be dedusted by the cleaning deduster 33 and then discharged through the exhaust vent 341.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The railway tunnel coal dust removing system is used for removing coal dust in a railway tunnel (5), and is characterized by comprising a first removing assembly (1) and a collecting assembly (3), wherein the first removing assembly (1) comprises a first preset pipeline (11), a blocking plug (12) and a dust suction hose (13), the first preset pipeline (11) is arranged in the railway tunnel (5), the first preset pipeline (11) is provided with a plurality of suction ports (111), the inner wall of each suction port (111) can be detachably connected with the blocking plug (12) and can also be detachably connected with the dust suction hose (13); the collecting assembly (3) comprises a gravity blanking device (31), a collecting box (32) and a vacuum pump (34), one end of the first preset pipeline (11) is closed, the other end of the first preset pipeline is communicated with the gravity blanking device (31), the bottom of the gravity blanking device (31) is communicated with the collecting box (32), and the vacuum pump (34) is also communicated with the gravity blanking device (31).

2. A coal dust removing system for railway tunnel as claimed in claim 1, characterized in that a cleaning dust remover (33) is communicated between said gravity blanking device (31) and said vacuum pump (34).

3. The railway tunnel coal dust removing system according to claim 2, further comprising a second removing assembly (2), wherein the second removing assembly (2) comprises a second preset pipeline (21), a fan (22), a buffer tank (23) and a material conveying pipe (25), the second preset pipeline (21) is also arranged in the railway tunnel (5), the second preset pipeline (21) is provided with a plurality of air outlets (211), one end of the second preset pipeline (21) is closed, and the other end of the second preset pipeline (21) is connected with the fan (22); buffer bin (23) are fixed to be set up railway tunnel (5) are close to the top of collection subassembly (3) one end, just buffer bin (23) are kept away from one side of collecting subassembly (3) is the opening form, the one end of conveying pipeline (25) with buffer bin (23) intercommunication, the other end with gravity blanking ware (31) intercommunication.

4. A railway tunnel smut removal system according to claim 3, characterised in that the buffer bin (23) is ring-shaped and its top is fixedly connected to the top of the railway tunnel (5).

5. A railway tunnel coal dust removing system according to claim 4, characterized in that a sensor (24) is fixedly arranged at the bottom of the end of the railway tunnel (5) far away from the collecting assembly (3), the sensor (24) is used for detecting signals of trains passing through the tunnel, and the fan (22) and the vacuum pump (34) are both electrically connected with the sensor (24).

6. A railway tunnel coal dust removing system according to claim 1, further comprising a first connecting assembly (4), wherein the blocking plug (12) is detachably and fixedly connected with the first preset pipeline (11) through the first connecting assembly (4), and the first connecting assembly (4) comprises a first clamping block (41) and a first spring (42); the sealing plug (12) is provided with a first thread groove (121), and the sealing plug (12) is in threaded connection with the side wall of the inner wall of the material suction port (111) through the first thread groove (121); a first sliding groove (122) is formed in the side wall of the sealing plug (12) below the first threaded groove (121), the first clamping block (41) is arranged in the first sliding groove (122) in a sliding mode, and the first spring (42) is arranged between the first clamping block (41) and the bottom of the first sliding groove (122).

7. The coal dust removing system for the railway tunnel according to claim 6, wherein the first connecting assembly (4) further comprises a first limiting strip (44) and a first pressing rod (43), a second sliding groove (123) which is opposite to the first sliding groove (122) in the vertical direction is formed in the side wall of the sealing plug (12) below the first threaded groove (121), the first pressing rod (43) is slidably arranged in the second sliding groove (123), a limiting groove (124) is arranged between the first sliding groove (122) and the second sliding groove (123), the first limiting strip (44) is slidably arranged in the limiting groove (124), one end of the first limiting strip (44) is fixedly connected with the first pressing rod (43), and the other end of the first limiting strip is fixedly connected with the first clamping block (41).

8. A coal dust removing system for a railway tunnel according to claim 7, wherein a connecting plug (14) is fixedly connected to one end of the dust suction hose (13) close to the first preset pipeline (11), a second thread groove (141) is formed in a side wall of the connecting plug, and the dust suction hose (13) can be in threaded connection with the inner wall of the suction port (111) through the second thread groove (141).

9. A railway tunnel smut removal system according to claim 1, wherein a control valve (112) is arranged at an end of the first predetermined pipe (11) close to the gravity blanking machine (31).

Images