Dust catching device for heading machine
By designing a dust collection device, the dust problem of the tunneling machine is solved by using water spraying sedimentation and circulation components, achieving efficient dust removal, extending equipment life and reducing dust pollution.
Patent Information
- Application Number
- CN202520665436.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-04-09
AI Technical Summary
Dust generated by tunneling machines during crushing operations accelerates equipment wear and aging, reduces visibility of the working environment, and increases dust pollution.
A dust collection device for a tunneling machine was designed, including a dust collection box, an exhaust pipe, an intake pipe, a dust collection net, a water storage tank, a fixed water pipe, and a drain pipe. The device accelerates dust settling by spraying water and is equipped with circulation components and flow guiding components to improve dust removal efficiency and reduce dust adhesion.
It effectively reduces dust concentration around the tunneling machine, improves visibility of the working environment, extends equipment life, and reduces dust pollution and replacement costs.
Smart Images
Figure CN223881176U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the coal mining equipment field, specifically is a kind of dust catcher for heading machine. BACKGROUND
[0002] Heading machine is a kind of mechanical equipment widely used in underground engineering, it can be directly from working face coal, rock etc. cutting and mining, and carry out loading transportation, usually used for excavating straight underground roadway, such as subway tunnel, railway tunnel, water conservancy and hydropower tunnel, mine roadway and water channel, drainage tunnel etc. engineering.
[0003] The working principle of heading machine is to break rock, coal etc. by rotating cutter, then the broken rock slag is transported out by scraper conveyor etc. equipment. In long time use and observation, it is found that the dust adhesion on each component of heading machine is accelerated by the increase of dust production in fully mechanized working face during breaking operation, and the wear and aging of equipment are accelerated.
[0004] Therefore, the utility model provides a kind of dust catcher for heading machine. UTILITY MODEL CONTENT
[0005] In order to make up for the deficiency of prior art, solve at least one problem proposed in background art, a kind of dust catcher for heading machine is presented.
[0006] The utility model discloses a kind of dust catcher for heading machine, including fixed seat;Connecting barrel is installed in the middle part of fixed seat side wall;Motor is assembled in the middle part of connecting barrel inner side wall;Motor output end is fixed with movable disc;Movable disc side wall middle part is assembled with cutting head;Multiple air holes are arranged in the middle part of connecting barrel side wall;Multiple dust catcher boxes are installed in the middle part of fixed seat side wall;Dust catcher box inner side wall middle part is equipped with dust catcher assembly;Dust catcher box inner side wall middle part is equipped with dust fall assembly;Dust catcher assembly side wall middle part is equipped with circulation assembly;Dust catcher box inner side wall middle part is equipped with flow guide assembly;Dust catcher assembly includes air outlet pipe;Air outlet pipe is fixed on dust catcher box side wall;Dust catcher box side wall middle part is fixed with air inlet pipe;Dust catcher box side wall middle part is fixed with drain pipe;Dust catcher box, air outlet pipe, air inlet pipe and drain pipe are all hollow and communicate;Multiple dust catcher nets are slidably connected on the top of dust catcher box;Positioning assembly is arranged between dust catcher net and dust catcher box;Multiple water storage tanks are installed in the middle part of dust catcher box inner side wall;Water storage tank and dust catcher net are correspondingly arranged;Multiple fixed water pipes are fixed on the middle part of water storage tank side wall;Fixed water pipe is arranged in inclined structure;Spraying assembly is arranged on the middle part of fixed water pipe side wall;Water storage tank, fixed water pipe and spraying assembly are all hollow and communicate;Water storage tank and circulation assembly communicate;By setting dust catcher box, air outlet pipe, air inlet pipe, dust catcher net, water storage tank, fixed water pipe and drain pipe, the dust concentration around heading machine during operation can be effectively reduced, the visibility of working environment is improved, the working condition can be more clearly observed by engineering personnel, so that accurate judgment and operation are made, and the dust settlement is accelerated by spraying in dust catcher box, the dust is prevented from flying again, the environmental pollution caused by dust is reduced, the dust adhered to various components of heading machine is prevented, the equipment wear and aging are accelerated, the equipment erosion caused by dust is reduced, and the service life of heading machine is prolonged.
[0007] Preferably, the positioning assembly includes a slot; the slot is correspondingly arranged on the side wall of the dust catcher box and the dust catcher net; a limiting rod is slidably connected in the middle part of the inner side wall of the slot; limiting blocks are connected on both sides of the limiting rod; by setting the slot, the limiting rod and the limiting block, the dust catcher net can be easily taken out from the inside of the dust catcher box, so that the engineering personnel can quickly and conveniently take out the dust catcher net for cleaning or replacement without complicated disassembly process, which not only saves time but also prolongs the service life of the dust catcher net, so that the dust catcher box can continuously maintain high dust catching capacity, and by prolonging the service life of the dust catcher net, the frequency and cost of replacing the dust catcher net are also reduced.
[0008] Preferably, the circulating assembly comprises a plurality of connecting water tanks; the plurality of connecting water tanks are fixed between adjacent dust collection tanks; a water outlet pipe is fixed in the middle of the side wall of the connecting water tank; a water pump is assembled at the end of the water outlet pipe; a water pumping pipe is fixed at the water pumping end of the water pump; the water pumping pipe and the drain pipe are connected; the dust collection tank, the drain pipe, the connecting water tank, the water outlet pipe, the water pumping pipe and the water storage tank are all hollow and connected; by arranging the connecting water tank, the water outlet pipe, the water pump and the water pumping pipe, the liquid after water spraying and dust reduction can be filtered and recycled, the recycled water can still maintain a certain degree of cleanliness and dust reduction effect after filtering treatment, the water utilization rate is improved, and the waste of water resources is reduced.
[0009] Preferably, the water spraying assembly comprises a movable water pipe; the movable water pipe is rotationally connected to the inner wall of a fixed water pipe; a water spraying pipe is fixed in the middle of the side wall of the movable water pipe; the water spraying pipe is arranged in an inclined structure; the fixed water pipe, the movable water pipe and the water spraying pipe are all hollow and connected; by arranging the movable water pipe and the water spraying pipe, the liquid can be sprayed out while rotating, the rotating water spraying can form a more extensive and uniform water mist coverage range, so that the dust particles in the dust collection tank are more easily contacted with the water mist and captured, and spraying water to the surface of the dust collection net can increase the moisture of the surface, so that the dust particles are more easily adsorbed and captured.
[0010] Preferably, the dust reduction assembly comprises a guide plate; the guide plate is fixed to the inner wall of the dust collection tank; by arranging the guide plate, the airflow and the dust particles can be guided to form a vortex or extend the flow path in the dust collection tank, so that the dust particles have more opportunities to be captured and settled, thereby improving the dust removal efficiency.
[0011] Preferably, the flow guide assembly comprises a flow guide plate; the flow guide plate is fixed to the inner wall of the dust collection tank; the flow guide plate is arranged in an arc structure; by arranging the flow guide plate, the water flow can be guided to flow along a specific path, which helps to more effectively guide the water and dust mixture at the bottom of the dust collection tank into the drainage system, reducing the risk of water accumulation and dust accumulation.
[0012] Preferably, a protective cover is mounted on the top of the fixing seat; the protective cover is made of elastic material; the protective cover covers the outside of the plurality of air inlet pipes; by arranging the protective cover, the stones generated during the excavation process can be directly blocked when the air inlet pipe inhales dust, preventing them from splashing onto the key components of the dust collection assembly, thereby protecting the dust collection assembly from damage and maintaining its continuous and effective operation.
[0013] Compared with the prior art, the dust collection device for the tunneling machine has the following beneficial effects:
[0014] 1. The utility model relates to a dust trapping device for a heading machine, through the setting dust trapping box, air outlet pipe, air inlet pipe, dust trapping net, water storage tank, fixed water pipe and drain pipe, can effectively reduce the dust concentration around the heading machine when working, improve the visibility of the working environment, make the engineering personnel can more clearly observe the working condition, thereby make accurate judgement and operation, and in the dust trapping box internally with the way of water spray to accelerate the settlement of dust, can reduce the dust fly again, reduce the pollution of dust to the environment, the setting of dust capture can reduce dust adhering on each component of the heading machine, accelerate the wear and tear and aging condition of equipment, reduce the erosion of dust to equipment, thereby prolong the service life of the heading machine.
[0015] 2. The utility model relates to a dust trapping device for a heading machine, through the setting groove, limiting rod and limiting block, can easily take out the dust trapping net from the dust trapping box, so that the engineering personnel can quickly, conveniently take out the dust trapping net and clean or replace, need not complicated dismounting process, not only saves time, still prolongs the service life of dust trapping net, so that the dust trapping box can continuously keep the efficient dust trapping capacity, and through the prolongation service life of dust trapping net, still can reduce the frequency and cost of dust trapping net replacement. DRAWINGS
[0016] Figure 1 It is the perspective drawing of the utility model;
[0017] Figure 2 It is the cooperation structure schematic diagram of connecting cylinder and dust trapping box in the utility model;
[0018] Figure 3 It is the cooperation structure schematic diagram of dust trapping box and connecting water tank in the utility model;
[0019] Figure 4 It is the sectional view of dust trapping box in the utility model;
[0020] Figure 5 It is Figure 1 Local enlarged view in A of it.
[0021] Legend:
[0022] 1, fixed seat, 11, connecting cylinder, 12, motor, 13, movable disc, 14, cutting head, 15, air hole, 16, dust trapping box, 2, air outlet pipe, 21, air inlet pipe, 22, dust trapping net, 23, water storage tank, 24, fixed water pipe, 25, drain pipe, 3, groove, 31, limiting rod, 32, limiting block, 4, connecting water tank, 41, water outlet pipe, 42, water pump, 43, water suction pipe, 5, movable water pipe, 51, water spray pipe, 6, guide plate, 7, drainage plate, 8, protective cover. SPECIFIC IMPLEMENTATION
[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.
[0024] The specific embodiments are given below.
[0025] As shown in Figures 1 to 4 The dust catching device for the tunneling machine includes a fixing seat 1, a connecting cylinder 11 installed in the middle of the side wall of the fixing seat 1, a motor 12 assembled in the middle of the inner side wall of the connecting cylinder 11, a movable disc 13 fixedly connected to the output end of the motor 12, a cutting head 14 assembled in the middle of the side wall of the movable disc 13, a plurality of air holes 15 formed in the middle of the side wall of the connecting cylinder 11, a plurality of dust catching boxes 16 installed in the middle of the side wall of the fixing seat 1, a dust catching assembly arranged in the middle of the inner side wall of the dust catching box 16, a dust falling assembly arranged in the middle of the inner side wall of the dust catching box 16, a circulating assembly arranged in the middle of the side wall of the dust catching assembly, a flow guiding assembly arranged in the middle of the inner side wall of the dust catching box 16, and a dust collector connected to the dust catching boxes 16. In operation, the fixing seat 1 is fixed on the tunneling machine, and then the motor 12 is started to drive the movable disc 13 to rotate, which in turn drives the cutting head 14 to rotate synchronously. At this time, the cutting head 14 breaks and digs the materials such as rocks and soil in rotation, and a large amount of dust is generated in the process of digging. The dust catcher is connected to the dust catching boxes 16, and the dust collector sucks the dust into the dust catching boxes 16. When the dust enters the dust catching boxes 16, it is captured by the dust catching assembly in the dust catching boxes 16 and falls to the bottom of the dust catching boxes 16 under the block of the dust falling assembly. At this time, the dust particles falling downward flow to the collecting cavity along the flow guiding assembly in the dust catching boxes 16.
[0026] As shown in Figures 1 to 5As shown, the dust collection assembly comprises an air outlet pipe 2; the air outlet pipe 2 is fixed on the side wall of the dust collection box 16; the middle part of the side wall of the dust collection box 16 is fixedly connected with an air inlet pipe 21; the middle part of the side wall of the dust collection box 16 is fixedly connected with a drain pipe 25; the dust collection box 16, the air outlet pipe 2, the air inlet pipe 21 and the drain pipe 25 are all hollowly arranged and communicated; a plurality of dust collection nets 22 are slidingly fitted on the top of the dust collection box 16; a positioning assembly is arranged between the dust collection net 22 and the dust collection box 16; a plurality of water storage boxes 23 are installed on the inner side wall of the dust collection box 16; the water storage boxes 23 and the dust collection nets 22 are correspondingly arranged; a plurality of fixed water pipes 24 are fixedly connected to the middle part of the side wall of the water storage box 23; the fixed water pipes 24 are arranged in an inclined structure; a water spraying assembly is arranged on the middle part of the side wall of the fixed water pipe 24; the water storage box 23, the fixed water pipe 24 and the water spraying assembly are all hollowly arranged and communicated; the water storage box 23 and the circulating assembly are communicated; during operation, the engineering personnel connect the dust collector and a plurality of air outlet pipes 2 together, and then start the dust collector; because the dust collection box 16, the air outlet pipe 2, the air inlet pipe 21 and the drain pipe 25 are communicated, a large amount of dust generated during the excavation of the cutting head 14 will enter the inside of a plurality of dust collection boxes 16 through the air inlet pipe 21, and then be captured by a plurality of dust collection nets 22 inside the dust collection box 16; when the dust collection net 22 is full of dust, the engineering personnel remove the restriction of the positioning assembly on the dust collection net 22, take out the dust collection net 22 and clean it; when the dust enters the dust collection box 16, the engineering personnel start the circulating assembly; because the water storage box 23 and the circulating assembly are communicated, the circulating assembly will filter the dust-settling water at the bottom of the dust collection box 16 and then re-pump it into the inside of the water storage box 23, and then flow to a plurality of fixed water pipes 24 and be sprayed out from the water spraying assembly; at this time, the sprayed liquid will mix with the dust entering the dust collection box 16, and the liquid carrying the dust will settle at the bottom of the dust collection box 16; this step can effectively reduce the dust concentration around the roadheader during operation by arranging the dust collection box 16, the air outlet pipe 2, the air inlet pipe 21, the dust collection net 22, the water storage box 23, the fixed water pipe 24 and the drain pipe 25, improve the visibility of the working environment, and enable the engineering personnel to more clearly observe the working conditions, so as to make accurate judgments and operations; the water spraying mode inside the dust collection box 16 can accelerate the settlement of dust, reduce the flying of dust again, reduce the pollution of dust to the environment, and the arrangement of capturing dust can reduce the adhesion of dust to various parts of the roadheader, accelerate the wear and aging of the equipment, reduce the erosion of dust to the equipment, thereby prolonging the service life of the roadheader.
[0027] As Figures 1 to 5As shown, the positioning assembly includes a notch 3; the notch 3 is provided on the sidewall of the dust collection box 16 and the dust collection net 22; the inner sidewall of the notch 3 is slidably connected with a limiting rod 31; the limiting rod 31 is connected with a limiting block 32 on both sides; when the surface of the dust collection net 22 is full of dust and the dust collection capacity is reduced, the engineering personnel removes the limiting block 32 from a pair of limiting rods 31, and pulls out a pair of limiting rods 31 from the inside of the dust collection box 16 and the dust collection net 22; at this time, the engineering personnel can take out a plurality of dust collection nets 22 from the inside of the dust collection box 16, clean the surface of the dust collection net 22, and then fix it in the inside of the dust collection box 16; through the setting of the notch 3, the limiting rod 31 and the limiting block 32, the dust collection net 22 can be easily taken out from the inside of the dust collection box 16, so that the engineering personnel can quickly and conveniently take out the dust collection net 22 for cleaning or replacement, without complicated disassembly process, which not only saves time, but also prolongs the service life of the dust collection net 22, so that the dust collection box 16 can continuously maintain high dust collection capacity, and through prolonging the service life of the dust collection net 22, the frequency and cost of replacing the dust collection net 22 can be reduced.
[0028] As shown in Figures 1 to 3 The circulating assembly includes a plurality of connecting water tanks 4; the connecting water tanks 4 are fixed between adjacent dust collection boxes 16; the sidewall of the connecting water tank 4 is fixedly connected with a water outlet pipe 41; the end of the water outlet pipe 41 is provided with a water pump 42; the water pump 42 is fixedly connected with a water suction pipe 43; the water suction pipe 43 is connected with the drain pipe 25; the dust collection box 16, the drain pipe 25, the connecting water tank 4, the water outlet pipe 41, the water suction pipe 43 and the water storage tank 23 are all hollow and communicated; during work, the engineering personnel starts a plurality of water pumps 42, which filter the liquid settled at the bottom of the dust collection box 16 and then suck it into the inside of the water suction pipe 43 through the water outlet pipe 41; because the water suction pipe 43 is communicated with the water storage tank 23, the liquid enters the inside of the plurality of water storage tanks 23 at this time, and flows to the fixed water pipe 24; through the setting of the connecting water tank 4, the water outlet pipe 41, the water pump 42 and the water suction pipe 43, the liquid after water spraying and dust falling can be filtered and recycled, the recycled water can still maintain a certain degree of cleanliness and dust falling effect after filtration treatment, which improves the utilization rate of water and reduces the waste of water resources.
[0029] As shown in Figure 2 and Figure 4As shown, the water spray assembly includes a movable water pipe 5; the movable water pipe 5 is rotatably connected to the inner wall of the fixed water pipe 24; a water spray pipe 51 is fixed in the middle of the side wall of the movable water pipe 5; the water spray pipe 51 is set with an inclined structure; the fixed water pipe 24, the movable water pipe 5, and the water spray pipe 51 are all hollow and connected; because the fixed water pipe 24, the movable water pipe 5, and the water spray pipe 51 are connected, when liquid flows through the fixed water pipe 24 into the interior of multiple movable water pipes 5, the liquid will be sprayed onto the surface of the dust collection net 22 through multiple water spray pipes 51, because the spray... The water pipe 51 is set with an inclined structure. When the water spray pipe 51 sprays water, it will be pushed by the force to drive the movable water pipe 5 to rotate on the inner wall of the fixed water pipe 24. This step, by setting the movable water pipe 5 and the water spray pipe 51, can spray the liquid out in a rotating manner. The rotating water spray can form a wider and more uniform water mist coverage area, making it easier for dust particles in the dust collection box 16 to come into contact with the water mist and be captured. At the same time, spraying water on the surface of the dust collection net 22 can increase its surface wettability, making it easier to adsorb and capture dust particles.
[0030] like Figure 2 and Figure 4 As shown, the dust collection assembly includes a guide plate 6; the guide plate 6 is fixed on the inner wall of the dust collection box 16; by setting the guide plate 6, the airflow and dust particles can be guided to form vortices or extend their flow path inside the dust collection box 16, thereby increasing the residence time of dust particles in the dust collection box 16, so that dust particles have more opportunities to be captured and settled, thereby improving dust removal efficiency.
[0031] like Figure 2 and Figure 4 As shown, the flow guiding assembly includes a flow guide plate 7; the flow guide plate 7 is fixed on the inner wall of the dust collection box 16; the flow guide plate 7 is set with an arc-shaped structure; this step, by setting the flow guide plate 7, can guide the water flow along a specific path, which helps to more effectively guide the water and dust mixture at the bottom of the dust collection box 16 into the drainage system, reducing the risk of water and dust accumulation.
[0032] like Figure 1 As shown, a protective cover 8 is installed on the top of the fixed base 1; the protective cover 8 is made of elastic material; the protective cover 8 covers the outside of multiple air inlet pipes 21; by setting the protective cover 8, this step can directly block the gravel generated during the excavation process when the air inlet pipe 21 sucks in dust, preventing it from splashing onto the key components of the dust collection assembly, thereby protecting the dust collection assembly from damage and maintaining its continuous and effective operation.
[0033] Working principle: The engineer will be fixed in the fixed seat 1 on the machine body, and then start the motor 12, the motor 12 will drive the rotating disc 13 rotation, the rotating disc 13 rotation will drive the cutting head 14 synchronous rotation, at this time the cutting head 14 will be broken and excavated in the rotation of the rock, soil and other materials, in the process of excavation will produce a lot of dust, the engineer will connect multiple dust catcher and dust collector, at this time the dust collector will suck the dust into the multiple dust catcher inside, start the circulating assembly, when the dust into the dust catcher 16 will be captured by the dust catcher 16 inside the dust catcher assembly, and under the block of dust falling assembly, at this time the dust particles falling downward will flow to the collection cavity along the guide component inside the dust catcher 16, the engineer will connect the dust collector and multiple air outlet pipe 2 together, and then start the dust collector, because the dust catcher 16, air outlet pipe 2, air inlet pipe 21 and drain pipe 25 communication, a large number of dust produced by the cutting head 14 will enter the multiple dust catcher 16 inside through the air inlet pipe 21, and then be captured by the multiple dust screen 22 inside the dust catcher 16, when the dust screen 22 full of dust, the engineer will remove the positioning assembly to the dust screen 22, take out and clean the dust screen 22, when the dust into the dust catcher 16, the engineer starts the circulating assembly, because the water storage tank 23 and circulating assembly communication, the circulating assembly will filter the dust falling water at the bottom of the dust catcher 16 and reextract into the water storage tank 23 inside, and then flow to the multiple fixed water pipe 24, and from the water spray assembly, at this time the liquid will be mixed with the dust into the dust catcher 16, and the liquid carrying dust will settle in the dust catcher 16 bottom, when the dust screen 22 surface full of dust, the trapping capacity decreases, the engineer will remove the limit block 32 from a pair of limit rod 31, and a pair of limit rod 31 from the dust catcher 16 and dust screen 22 inside the extraction, at this time the engineer can take out the multiple dust screen 22 from the dust catcher 16 inside, clean the dust screen 22 surface and fix it in the dust catcher 16, the engineer starts the multiple water pump 42, the water pump 42 will filter the liquid settled in the dust catcher 16 bottom through the water outlet pipe 41 and extract into the water pump 43 inside, because the water pump 43 and water storage tank 23 communication, at this time the liquid will enter the multiple water storage tank 23 inside, and flow to the fixed water pipe 24, because the fixed water pipe 24, movable water pipe 5 and water spray pipe 51 communication, when the liquid passes through the fixed water pipe 24 and flows to the multiple movable water pipe 5 inside, the liquid will be sprayed to the surface of the dust screen 22 through the multiple water spray pipe 51, because the water spray pipe 51 is inclined structure, the water spray pipe 51 will drive the movable water pipe 5 to rotate on the inner wall of the fixed water pipe 24 under the action of the thrust.
[0034] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A dust catching device for a heading machine, comprising a stationary seat (1); characterized in that: The middle part of the side wall of the fixed seat (1) is provided with a connecting cylinder (11); the middle part of the inner side wall of the connecting cylinder (11) is provided with a motor (12); the output end of the motor (12) is fixedly connected with a movable disc (13); the middle part of the side wall of the movable disc (13) is provided with a cutting head (14); the middle part of the side wall of the connecting cylinder (11) is provided with a plurality of ventilation holes (15); the middle part of the side wall of the fixed seat (1) is provided with a plurality of dust catching boxes (16); the middle part of the inner side wall of the dust catching box (16) is provided with a dust catching assembly; the middle part of the inner side wall of the dust catching box (16) is provided with a dust falling assembly; the middle part of the side wall of the dust catching assembly is provided with a circulating assembly; the middle part of the inner side wall of the dust catching box (16) is provided with a flow guiding assembly.
2. The dust collecting device for a heading machine according to claim 1, characterized in that: The dust catching assembly comprises an air outlet pipe (2); the air outlet pipe (2) is fixed on the side wall of the dust catching box (16); the middle part of the side wall of the dust catching box (16) is fixedly connected with an air inlet pipe (21); the middle part of the side wall of the dust catching box (16) is fixedly connected with a drain pipe (25); the dust catching box (16), the air outlet pipe (2), the air inlet pipe (21) and the drain pipe (25) are all hollow and communicate with each other; a plurality of dust catching nets (22) are slidably connected to the top of the dust catching box (16); a positioning assembly is arranged between the dust catching net (22) and the dust catching box (16); a plurality of water storage boxes (23) are arranged in the middle part of the inner side wall of the dust catching box (16); the water storage boxes (23) and the dust catching nets (22) are correspondingly arranged; a plurality of fixed water pipes (24) are fixedly connected to the middle part of the side wall of the water storage box (23); the fixed water pipes (24) are arranged in an inclined structure; a water spraying assembly is arranged in the middle part of the side wall of the fixed water pipe (24); the water storage box (23), the fixed water pipe (24) and the water spraying assembly are all hollow and communicate with each other; the water storage box (23) communicates with the circulating assembly.
3. The dust collecting device for a heading machine according to claim 2, characterized in that: The positioning assembly comprises a slot (3); the slots (3) are correspondingly arranged on the side walls of the dust catching box (16) and the dust catching net (22); a limiting rod (31) is slidably connected to the middle part of the inner side wall of the slot (3); limiting blocks (32) are connected to the two sides of the limiting rod (31).
4. The dust collecting device for a heading machine according to claim 2, characterized in that: The circulating assembly comprises a plurality of connecting water boxes (4); the connecting water boxes (4) are fixedly connected between adjacent dust catching boxes (16); a water outlet pipe (41) is fixedly connected to the middle part of the side wall of the connecting water box (4); a water pump (42) is arranged at the end of the water outlet pipe (41); a water pumping pipe (43) is fixedly connected to the water pumping end of the water pump (42); the water pumping pipe (43) is connected with the drain pipe (25); the dust catching box (16), the drain pipe (25), the connecting water box (4), the water outlet pipe (41), the water pumping pipe (43) and the water storage box (23) are all hollow and communicate with each other.
5. The dust collecting device for a heading machine according to claim 2, characterized in that: The water spraying assembly comprises a movable water pipe (5); the movable water pipe (5) is rotatably connected to the inner wall of the fixed water pipe (24); a water spraying pipe (51) is fixedly connected to the middle part of the side wall of the movable water pipe (5); the water spraying pipe (51) is arranged in an inclined structure; the fixed water pipe (24), the movable water pipe (5) and the water spraying pipe (51) are all hollow and communicate with each other.
6. The dust collecting device for a heading machine according to claim 1, characterized in that: The dust falling assembly comprises a guide plate (6); the guide plate (6) is fixed on the inner wall of the dust collecting box (16).
7. The dust collecting device for a heading machine according to claim 1, characterized in that: The flow guide assembly comprises a flow guide plate (7); the flow guide plate (7) is fixed on the inner wall of the dust collecting box (16); and the flow guide plate (7) is provided in an arc-shaped structure.
8. The dust collecting device for a heading machine according to claim 1, characterized in that: A protective cover (8) is mounted on the top of the fixing seat (1); the protective cover (8) is made of elastic material; and the protective cover (8) covers the outside of the plurality of air inlet pipes (21).