A fully enclosed dust reduction type coal guide chute
By adopting a rotating belt and nozzle structure in the coal guide trough, the full contact between water mist and dust is achieved, and the problem of excessive water mist in the prior art increases coal humidity is solved, and the efficient dust reduction effect is achieved and the impact on coal use is reduced.
Patent Information
- Application Number
- CN202411970853.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-04-04
AI Technical Summary
During the dust reduction process of existing coal guide troughs, dry fog dust reduction structures need to be installed at different locations, resulting in excessive water mist, increasing coal humidity, and affecting later use.
A fully enclosed dust-reducing coal trough is designed, adopting a rotating belt and a nozzle structure. The nozzle is located between the rotating belt and the coal-falling pipe. The water mist and dust are in full contact on one side of the rotating belt to achieve rapid dust reduction.
It effectively reduces the impact of water mist on coal humidity, reduces the content of water mist sprayed during dust reduction, reduces the impact on the later use of coal, and achieves rapid dust reduction operations.
Smart Images
Figure CN119750260A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of coal transportation, in particular to a fully enclosed dust reduction type coal guide chute. Background Art
[0002] At present, in coal transportation operations, belt conveyors are often used in conjunction with material guide troughs. Specifically, the material guide trough needs to be set on the conveyor for use. The front and rear ends of the material guide trough are equipped with multiple sealing baffles and curtains to form a pressure-equalizing dust sealing and dust reduction system to reduce the pressure, slow down, and settle the dust, so that a cleaner airflow flows out at the outlet of the material guide trough, thereby reducing the large amount of dust generated when the coal is transported on the conveyor belt of the belt conveyor. It should be pointed out that in the actual field of coal transportation, the material guide trough is often referred to as a coal guide trough.
[0003] When the existing coal guide chute is in use, in order to reduce dust from the coal transported inside the coal guide chute, a dry mist dust reduction structure is installed on the side. The dry mist dust reduction structure sprays water mist into the coal guide chute, and the water mist combines with the dust inside the coal guide chute, causing the dust mass to increase and fall downward, thereby achieving dust reduction. However, in actual use, in order to improve the dust reduction effect, the staff will install dry mist dust reduction structures at different positions of the coal guide chute, so that the water mist fully covers the interior of the coal guide chute. The large amount of water mist entering the coal guide chute will increase the humidity of the transported coal, which will have a greater impact on the later use of the coal.
[0004] To this end, the present invention provides a fully enclosed dust reduction type coal guide chute. Summary of the invention
[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.
[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the fully enclosed dust reduction type coal guide chute of the present invention comprises a receiving platform, a chute body is installed at the top of the receiving platform, conveyors are arranged at both ends of the receiving platform, and the conveyor belt of the conveyor passes through the chute body; a pair of coal dropping pipes are arranged at the top of the chute body, and a plurality of dust suppression curtains are arranged at both ends of the chute body; a nozzle is inserted and penetrated at the top of the chute body and located on one side of the coal dropping pipe; the nozzle is externally connected to a pump body;
[0007] A rotating belt is provided on the side of the interior of the trough body away from the coal dropping pipe, and both sides of the rotating belt are slidably connected to the inner wall of the trough body; the interior of the rotating belt includes a pair of upper receiving rollers and a pair of lower receiving rollers; the upper receiving rollers and the lower receiving rollers are both rotatably connected to the inner wall of the trough body; the nozzle is located between the rotating belt and the coal dropping pipe; the top end of the rotating belt is in contact with the top wall of the trough body; there is a gap between the bottom end of the rotating belt and the conveyor belt of the conveyor.
[0008] Preferably, a scraper is provided inside the trough body, and an end of the scraper is in contact with the vertical portion of the rotating belt.
[0009] Preferably, a pair of rotating shafts are provided at both ends of the scraper, and the ends of the rotating shafts pass through the outside of the trough body; a turntable is provided at one end of the rotating shaft outside the trough body, and a pair of fixing plates fixedly connected to the side of the trough body are provided at the upper and lower ends of the turntable, and a buffer spring is provided between the fixing plate and the turntable.
[0010] Preferably, a plug-in shaft is arranged inside the trough body and directly below the spray head, and a plurality of stirring rods are arranged on the axial surface of the plug-in shaft in a ring shape; the end of the plug-in shaft passes through the outside of the trough body and is externally connected to a driving motor.
[0011] Preferably, a baffle is provided on the side of the scraper; when the plug-in shaft drives the stirring rod to rotate, the end of the stirring rod intermittently hits the baffle.
[0012] Preferably, a pressure block is provided between the upper supporting roller and the lower supporting roller, a piston is provided on the side of the pressure block, a cylinder is provided on the end of the piston away from the pressure block, the end of the piston is inserted into the interior of the cylinder, a support tube is provided on the side of the cylinder, the support tube passes through to the outside; and is connected to the air pump.
[0013] Preferably, an air outlet pipe is provided on the side of the cylinder, the air outlet pipe is connected to the outside, and a pressure relief valve is externally connected to the air outlet pipe.
[0014] Preferably, a buffer roller is rotatably provided on one side of the pressing block close to the inner surface of the rotating belt.
[0015] Preferably, a rectangular hole is opened on the side of the trough body, a connecting shaft is arranged inside the rectangular hole, and the connecting shaft is fixedly connected to the end of the lower receiving roller; a positioning plate is arranged at the opening of the rectangular hole, and a linkage frame is arranged on the side of the positioning plate; a hydraulic cylinder is arranged on the side of the trough body, and the output end of the hydraulic cylinder is connected to the linkage frame.
[0016] Preferably, a pair of extension grooves are opened on the upper and lower inner walls of the rectangular hole, and a pair of sealing plates are arranged on the upper and lower sides of the lower receiving roller. One end of the sealing plate away from the lower receiving roller is slidably connected to the inner wall of the extension groove.
[0017] The beneficial effects of the present invention are as follows:
[0018] 1. The fully enclosed dust reduction type coal guide chute described in the present invention is provided with a rotating belt, the top end of the rotating belt is in contact with the top wall of the chute body, and there is a gap between the bottom end of the rotating belt and the conveyor belt of the conveyor; and the gap is just the thickness of the coal on the conveyor belt; in addition, the two sides of the rotating belt are slidingly connected with the inner wall of the chute body; therefore, the dust in the chute body is concentrated on one side of the rotating belt, that is, between the coal dropping point of the coal dropping pipe and the rotating belt, and the nozzle sprays water mist between the coal dropping point of the coal dropping pipe and the rotating belt to fully contact with the dust, thereby realizing rapid dust reduction operation; effectively alleviating the influence of water mist on the humidity of the transported coal; and reducing the influence on the later use of coal.
[0019] 2. The fully enclosed dust reduction type coal guide chute described in the present invention is provided with a plug-in shaft; when in use, the driving motor drives the plug-in shaft to rotate, and the plug-in shaft drives the stirring rod to rotate, and the stirring rod stirs the water mist and dust under the nozzle to accelerate the efficiency of the combination of water mist and dust. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention will be further described below in conjunction with the accompanying drawings.
[0021] Figure 1 is a stereogram of the present invention;
[0022] Figure 2 It is a schematic diagram of the structure of the tank body of the present invention;
[0023] Figure 3 It is a schematic diagram of the internal structure of the tank body of the present invention;
[0024] Figure 4 It is a schematic diagram of the tank body of the present invention;
[0025] Figure 5 It is a schematic diagram of the position of the rectangular holes on the tank body of the present invention;
[0026] Figure 6 It is a schematic diagram of the linkage frame connection structure of the present invention;
[0027] Figure 7 It is a schematic diagram of the connection structure of the positioning plate of the present invention;
[0028] Figure 8 It is a schematic diagram of the internal structure of the rotating belt of the present invention;
[0029] Fig. 9 It is a schematic diagram of the cylinder connection structure of the present invention;
[0030] Fig.10 It is a schematic diagram of the scraper connection structure of the present invention;
[0031] Fig.11 It is a schematic diagram of the structure of the scraper end of the present invention;
[0032] Fig.12It is a schematic diagram of the connection between the scraper and the baffle of the present invention.
[0033] In the figure: 1. receiving platform; 11. conveyor; 2. trough body; 21. coal drop pipe; 22. dust suppression curtain; 23. nozzle; 24. rectangular hole; 25. extension groove; 3. rotating belt; 30. upper receiving roller; 31. lower receiving roller; 311. connecting shaft; 312. positioning plate; 313. sealing plate; 314. linkage frame; 315. hydraulic cylinder; 32. pressure block; 33. piston; 34. cylinder; 35. support pipe; 36. exhaust pipe; 37. pressure relief valve; 4. scraper; 40. baffle; 41. rotating shaft; 42. turntable; 43. fixing plate; 44. buffer spring; 5. plug-in shaft; 51. stirring rod. DETAILED DESCRIPTION
[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
[0035] like Figures 1 to 8 As shown, a fully enclosed dust suppression type coal guide chute according to an embodiment of the present invention comprises a receiving platform 1, a chute body 2 is installed at the top of the receiving platform 1, conveyors 11 are arranged at both ends of the receiving platform 1, and the conveyor belt of the conveyor 11 passes through the chute body 2; a pair of coal dropping pipes 21 are arranged at the top of the chute body 2, and a plurality of dust suppression curtains 22 are arranged at both ends of the chute body 2; a nozzle 23 is inserted and penetrated at the top of the chute body 2 and located on one side of the coal dropping pipe 21; the nozzle 23 is externally connected to a pump body;
[0036] A rotating belt 3 is provided on one side of the trough body 2 away from the coal dropping pipe 21, and both sides of the rotating belt 3 are slidably connected to the inner wall of the trough body 2; the rotating belt 3 includes a pair of upper receiving rollers 30 and a pair of lower receiving rollers 31; the upper receiving rollers 30 and the lower receiving rollers 31 are both rotatably connected to the inner wall of the trough body 2; the nozzle 23 is located between the rotating belt 3 and the coal dropping pipe 21; the top end of the rotating belt 3 is in contact with the inner top wall of the trough body 2; there is a gap between the bottom end of the rotating belt 3 and the conveyor belt of the conveyor 11;
[0037] In order to improve the dust reduction effect during the existing coal transportation, the staff will install dry fog dust reduction structures at different positions of the coal guide trough so that the water mist can fully cover the inside of the coal guide trough. The large amount of water mist entering the coal guide trough will increase the humidity of the transported coal, which will have a great impact on the later use of the coal. In order to solve the above problems, the embodiment of the present invention is provided with a plurality of structures such as a rotating belt 3, an upper receiving roller 30, and a lower receiving roller 31. The specific use process is as follows: when in use, the conveyor 11 is started, and the conveyor belt of the conveyor 11 moves inside the trough body 2. The coal dropping pipe 21 transports the coal to the conveyor belt inside the trough body 2, and at the same time, the pump body connected to the nozzle 23 is started, and the nozzle 23 sprays water mist into the inside of the trough body 2; and the nozzle 23 is located between the rotating belt 3 and the coal dropping pipe 21; at the same time, the top of the rotating belt 3 contacts the top wall inside the trough body 2, and there is a gap between the bottom of the rotating belt 3 and the conveyor belt of the conveyor 11; the coal on the conveyor belt can only be further transported through the gap when passing through the rotating belt 3; in addition, the two sides of the rotating belt 3 are slidably connected with the inner wall of the trough body 2; therefore, the dust in the trough body 2 is concentrated on the rotating belt 3, that is, between the coal dropping place of the coal dropping pipe 21 and the rotating belt 3, the nozzle 23 sprays water mist to the place between the coal dropping place of the coal dropping pipe 21 and the rotating belt 3 to fully contact the dust, thereby realizing rapid dust reduction operation; since the dust generated by the coal discharged from the coal dropping pipe 21 is concentrated on one side of the rotating belt 3, it is fully in contact with the water mist sprayed by one nozzle 23; therefore, it is not necessary to spray water mist at different positions of the trough body 2 to realize dust reduction operation in the trough body, thereby reducing the content of water mist sprayed during dust reduction; effectively alleviating the influence of water mist on the humidity of the transported coal; reducing the Impact on the later use of coal; It should be pointed out that the upper receiving roller 30 is externally connected to an output motor. When in use, the output motor drives the upper receiving roller 30 to rotate, which in turn causes the rotating belt 3 to rotate synchronously, and the rotation speed of the rotating belt 3 is synchronized with the movement of the conveyor belt of the conveyor 11; so that the dust generated by the collision of coal during transportation is restricted from escaping upward; and the water mist sprayed by the nozzle 23 will contact the outer surface of the rotating belt 3, so the dust generated by the collision of coal during transportation will be absorbed by the rotating belt 3; further dust reduction is achieved without the need for additional spraying of water mist.
[0038] like Figures 1 to 12 As shown, a scraper 4 is provided inside the trough body 2, and the end of the scraper 4 contacts the vertical part of the rotating belt 3; when the rotating belt 3 rotates, the end of the scraper 4 will scrape off the dust attached to the surface of the rotating belt 3, and then fall onto the conveyor belt below, so as to prevent the dust from accumulating on the surface of the rotating belt 3 and affecting its use.
[0039] A pair of rotating shafts 41 are provided at both ends of the scraper 4, and the ends of the rotating shafts 41 pass through the outside of the tank body 2; a rotating disk 42 is provided at one end of the rotating shaft 41 outside the tank body 2, and a pair of fixing plates 43 fixedly connected to the side of the tank body 2 are provided at the upper and lower ends of the rotating disk 42, and a buffer spring 44 is provided between the fixing plate 43 and the rotating disk 42; when the nozzle 23 sprays water mist, part of the water mist will fall onto the top surface of the scraper 4 and produce a certain impact; the dust scraped off from the top surface of the scraper 4 will be impacted and fall off by the water mist; thereby avoiding the accumulation of dust on the top surface of the scraper 4; ensuring the use effect of the scraper 4; there is no need to intermittently clean the dust accumulated on the top surface of the scraper 4; it is beneficial to the scraper 4 Continuous use; in addition, when the top of the scraper 4 is impacted by the water mist, since the scraper 4 is located at a non-center position below the nozzle 23, the water mist sprayed by the nozzle 23 obliquely impacts the top surface of the scraper 4, which makes the top surface of the scraper 4 unevenly stressed, causing the scraper 4 to intermittently rotate through the rotating shaft 41 in coordination with the turntable 42 and the fixed plate 43 and the buffer spring 44, thereby driving the rotating belt 3 to oscillate synchronously, accelerating the shedding of surface dust, and the dust on the surface of the scraper 4 falls synchronously; it should be pointed out that the scraper 4 occupies a smaller space on one side of the rotating belt 3, so the surface of the scraper 4 will not receive a large amount of water mist, which affects the overall combination of water mist and dust.
[0040] A plug-in shaft 5 is arranged inside the trough body 2 and directly below the nozzle 23. The axial surface of the plug-in shaft 5 is annularly provided with multiple stirring rods 51; the end of the plug-in shaft 5 passes through the outside of the trough body 2 and is externally connected to a driving motor; when in use, the driving motor drives the plug-in shaft 5 to rotate, and the plug-in shaft 5 drives the stirring rod 51 to rotate, and the stirring rod 51 stirs the water mist and dust under the nozzle 23 to accelerate the efficiency of the combination of water mist and dust.
[0041] A baffle 40 is provided on the side of the scraper 4; when the plug-in shaft 5 drives the stirring rod 51 to rotate, the end of the stirring rod 51 intermittently hits the baffle 40; thereby further enhancing the vibration effect of the scraper 4, which is beneficial to the removal of dust on the scraper 4 and the rotating belt 3.
[0042] A pressure block 32 is provided between the upper receiving roller 30 and the lower receiving roller 31, and a piston 33 is provided on the side of the pressure block 32. A cylinder 34 is provided at the end of the piston 33 away from the pressure block 32, and the end of the piston 33 is inserted into the interior of the cylinder 34. A support pipe 35 is provided on the side of the cylinder 34, and the support pipe 35 passes through the outside and is connected to the air pump. When in use, the cylinder 34 is inflated through the air pump and the support pipe 35, and the cylinder 34 drives the pressure block 32 at the end of the piston 33 to press against the inner surface of the rotating belt 3 through the air pressure, so that the rotating belt 3 remains taut to ensure the use effect.
[0043] An air outlet pipe 36 is provided on the side of the cylinder 34, which is connected to the outside and is externally connected to a pressure relief valve 37. When in use, the cylinder 34 is continuously inflated. When the internal air pressure of the cylinder 34 reaches a certain level, the internal gas of the cylinder 34 is discharged through the pressure relief valve 37 connected to the air outlet pipe 36, thereby allowing the pressure block 32 to stably press against the inner surface of the rotating belt 3. Excessive pressure may accelerate the consumption of the rotating belt 3, while too little pressure may affect the use effect.
[0044] A buffer roller 3211 is rotatably arranged on one side of the pressing block 32 close to the inner surface of the rotating belt 3; the buffer roller 3211 can prevent the pressing block 32 from directly contacting the rotating belt 3, reduce the resistance encountered by the rotating belt 3 during rotation, reduce the consumption of the rotating belt 3, and increase the service life.
[0045] A rectangular hole 24 is provided on the side of the trough body 2, and a connecting shaft 311 is provided inside the rectangular hole 24, and the connecting shaft 311 is fixedly connected to the end of the lower receiving roller 31; a positioning plate 312 is provided at the mouth of the rectangular hole 24, and a linkage frame 314 is provided on the side of the positioning plate 312; a hydraulic cylinder 315 is provided on the side of the trough body 2, and the output end of the hydraulic cylinder 315 is connected to the linkage frame 314; according to the thickness of the coal transported by different conveyor belts, the positioning plate 312 is driven up and down by the hydraulic cylinder 315 and the linkage frame 314, and the positioning plate 312 drives the lower receiving roller 31 to move up and down in the rectangular hole 24 through the connecting shaft 311, thereby adjusting the height of the bottom end of the rotating belt 3, so that the height of the bottom end of the rotating belt 3 is adapted to the thickness of the coal transported by the conveyor belt; and the rotating belt 3 is kept taut by the pressure block 32, thereby improving the flexibility of use.
[0046] A pair of extension grooves 25 are provided on the upper and lower inner walls of the rectangular hole 24, and a pair of sealing plates 313 are provided on the upper and lower sides of the lower receiving roller 31. The end of the sealing plate 313 away from the lower receiving roller 31 is slidably connected to the inner wall of the extension groove 25; when the positioning plate 312 moves up and down, the lower receiving roller 31 drives the sealing plate 313 to move up and down synchronously, and cooperates with the extension groove 25 to continuously block the rectangular hole 24 to prevent air leakage in the trough body 2; it should be pointed out that the sealing plate 313 is slidably connected to the lower receiving roller 31, and will not interfere when the lower receiving roller 31 rotates.
[0047] When in use, the conveyor 11 is started, and the conveyor belt of the conveyor 11 moves inside the trough body 2, and the coal is transported to the conveyor belt inside the trough body 2 through the coal dropping pipe 21, and at the same time, the pump body connected to the nozzle 23 is started, and the nozzle 23 sprays water mist into the inside of the trough body 2; and the nozzle 23 is located between the rotating belt 3 and the coal dropping pipe 21 in the horizontal direction; at the same time, the top of the rotating belt 3 contacts the inner top wall of the trough body 2, and there is a gap between the bottom end of the rotating belt 3 and the conveyor belt of the conveyor 11; and the gap is just the thickness of the coal on the conveyor belt; in addition, the two sides of the rotating belt 3 are slidingly connected to the inner wall of the trough body 2; therefore, the dust in the trough body 2 is concentrated on one side of the rotating belt 3, that is, between the coal dropping place of the coal dropping pipe 21 and the rotating belt 3, and the nozzle 23 sprays water mist between the coal dropping place of the coal dropping pipe 21 and the rotating belt 3 to fully contact the dust, thereby realizing rapid dust reduction operation; and there is no need to 2, water mist is sprayed at different positions, which effectively alleviates the influence of water mist on the humidity of the transported coal; reduces the influence on the later use of coal; it should be pointed out that the upper receiving roller 30 is externally connected to an output motor, and when in use, the output motor drives the upper receiving roller 30 to rotate, thereby causing the rotating belt 3 to rotate synchronously, and the rotation speed of the rotating belt 3 is synchronized with the movement of the conveyor belt of the conveyor 11; so that the dust generated by the collision of coal during transportation is restricted from escaping upward; and the water mist sprayed by the nozzle 23 will contact the outer surface of the rotating belt 3, so the dust generated by the collision of coal during transportation will be absorbed by the rotating belt 3; further dust reduction is achieved without the need for additional spraying of water mist; wherein when the rotating belt 3 rotates, the end of the scraper 4 will scrape off the dust attached to the surface of the rotating belt 3, and then fall onto the conveyor belt below, so as to avoid dust accumulation on the surface of the rotating belt 3 affecting its use.
[0048] When the nozzle 23 sprays water mist, the water mist impacts the top surface of the scraper 4, so that the scraper 4 intermittently rotates through the rotating shaft 41, the rotating disk 42, the fixed plate 43 and the buffer spring 44, so that the rotating belt 3 is driven to oscillate synchronously, accelerating the shedding of surface dust; and the dust on the surface of the scraper 4 falls synchronously; when in use, the driving motor drives the plug-in shaft 5 to rotate, and the plug-in shaft 5 drives the stirring rod 51 to rotate, and the stirring rod 51 stirs the water mist and dust under the nozzle 23 to accelerate the efficiency of the combination of water mist and dust; when in use, the air cylinder 34 is inflated by the air pump and the support pipe 35, and the cylinder 34 drives the pressing block 32 at the end of the piston 33 to press against the inner surface of the rotating belt 3 through the air pressure, so that the rotating belt 3 remains in a taut state to ensure the use effect; when in use, the air cylinder 34 is continuously inflated, and when the internal air pressure of the cylinder 34 reaches a certain level, the internal gas of the cylinder 34 is discharged through the outlet pipe 36. The pressure valve 37 is discharged, so that the pressure block 32 is stably pressed against the inner surface of the rotating belt 3; excessive pressure is avoided to accelerate the consumption of the rotating belt 3 and too small pressure affects the use effect; wherein for the thickness of the coal transported by the different conveyor belts, the positioning plate 312 is driven up and down by the hydraulic cylinder 315 and the linkage frame 314, and the positioning plate 312 drives the lower receiving roller 31 to move up and down in the rectangular hole 24 through the connecting shaft 311, thereby adjusting the height of the bottom end of the rotating belt 3 so that the height of the bottom end of the rotating belt 3 is adapted to the thickness of the coal transported by the conveyor belt; and the rotating belt 3 is kept taut by the pressure block 32; the flexibility of use is improved; wherein when the positioning plate 312 moves up and down, the lower receiving roller 31 drives the sealing plate 313 to move up and down synchronously, and cooperates with the extension groove 25 to continuously block the rectangular hole 24 to avoid air leakage in the trough body 2; it should be pointed out that the sealing plate 313 is slidably connected to the lower receiving roller 31, and will not interfere when the lower receiving roller 31 rotates.
[0049] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A fully enclosed dust reduction type coal guide chute, characterized in that: The invention comprises a receiving platform (1), a trough body (2) is installed at the top of the receiving platform (1), conveyors (11) are arranged at both ends of the receiving platform (1), and the conveyor belt of the conveyor (11) passes through the trough body (2); a pair of coal dropping pipes (21) are arranged at the top of the trough body (2), and a plurality of dust suppression curtains (22) are arranged at both ends of the trough body (2); a nozzle (23) is inserted and penetrated at the top of the trough body (2) and located on one side of the coal dropping pipe (21); and the nozzle (23) is externally connected to a pump body; A rotating belt (3) is provided on the side of the interior of the trough body (2) away from the coal dropping pipe (21), and the two sides of the rotating belt (3) are slidably connected to the inner wall of the trough body (2); the interior of the rotating belt (3) includes a pair of upper receiving rollers (30) and a pair of lower receiving rollers (31); the upper receiving rollers (30) and the lower receiving rollers (31) are both rotatably connected to the inner wall of the trough body (2); the nozzle (23) is located between the rotating belt (3) and the coal dropping pipe (21); the top end of the rotating belt (3) is in contact with the inner top wall of the trough body (2); and there is a gap between the bottom end of the rotating belt (3) and the conveyor belt of the conveyor (11).
2. A fully enclosed dust reduction type coal guide chute according to claim 1, characterized in that: A scraper (4) is arranged inside the trough body (2), and the end of the scraper (4) is in contact with the vertical part of the rotating belt (3).
3. A fully enclosed dust reduction type coal guide chute according to claim 2, characterized in that: A pair of rotating shafts (41) are provided at both ends of the scraper (4), and the ends of the rotating shafts (41) pass through the outside of the tank body (2); a rotating disk (42) is provided at one end of the rotating shaft (41) located outside the tank body (2), and a pair of fixing plates (43) fixedly connected to the side of the tank body (2) are provided at the upper and lower ends of the rotating disk (42), and a buffer spring (44) is provided between the fixing plate (43) and the rotating disk (42).
4. A fully enclosed dust reduction type coal guide chute according to claim 3, characterized in that: A plug-in shaft (5) is arranged inside the tank body (2) and directly below the spray head (23); the axial surface of the plug-in shaft (5) is provided with a plurality of stirring rods (51) in a ring shape; the end of the plug-in shaft (5) passes through the outside of the tank body (2) and is externally connected to a driving motor.
5. A fully enclosed dust reduction type coal guide chute according to claim 4, characterized in that: A baffle (40) is provided on the side of the scraper (4); when the plug-in shaft (5) drives the stirring rod (51) to rotate, the end of the stirring rod (51) intermittently hits the baffle (40).
6. A fully enclosed dust reduction type coal guide chute according to claim 2, characterized in that: A pressure block (32) is arranged between the upper receiving roller (30) and the lower receiving roller (31), a piston (33) is arranged on the side of the pressure block (32), a cylinder (34) is arranged at one end of the piston (33) away from the pressure block (32), an end of the piston (33) is inserted into the interior of the cylinder (34), a support pipe (35) is arranged on the side of the cylinder (34), and the support pipe (35) passes through to the outside and is connected to an air pump.
7. A fully enclosed dust reduction type coal guide chute according to claim 6, characterized in that: An air outlet pipe (36) is provided on the side of the cylinder (34), the air outlet pipe (36) is connected to the outside, and a pressure relief valve (37) is externally connected to the air outlet pipe (36).
8. The fully enclosed dust reduction type coal guide chute according to claim 7, characterized in that: A buffer roller (3211) is rotatably arranged on one side of the pressing block (32) close to the inner surface of the rotating belt (3).
9. The fully enclosed dust reduction type coal guide chute according to claim 1, characterized in that: A rectangular hole (24) is provided on the side of the trough body (2), a connecting shaft (311) is provided inside the rectangular hole (24), and the connecting shaft (311) is fixedly connected to the end of the lower receiving roller (31); a positioning plate (312) is provided at the opening of the rectangular hole (24), and a linkage frame (314) is provided on the side of the positioning plate (312); a hydraulic cylinder (315) is provided on the side of the trough body (2), and the output end of the hydraulic cylinder (315) is connected to the linkage frame (314).
10. A fully enclosed dust reduction type coal guide chute according to claim 9, characterized in that: A pair of extension grooves (25) are provided on the upper and lower inner walls of the rectangular hole (24), and a pair of sealing plates (313) are provided on the upper and lower sides of the lower receiving roller (31). One end of the sealing plate (313) away from the lower receiving roller (31) is slidably connected to the inner wall of the extension groove (25).