Unpowered dust suppression guide chute

Abstract

The utility model relates to the technical field of dust suppression material guiding devices, and discloses an unpowered dust suppression material guiding groove which comprises an adhesive tape, the adhesive tape is installed at the upper end of a middle frame, the lower portion of the middle frame is placed on the ground through adhesive tape machine supporting legs, and a material guiding groove expansion side plate is installed on the upper portion of the middle frame. An adjustable groove-shaped carrier roller is installed at the lower end in the rubber belt, an adjustable buffer bed is installed in the middle of the upper end of the middle frame, a guide groove supporting column is installed on the upper portion of the side face of the middle frame, and a rubber belt supporting carrier roller is installed on the lower portion of one end of the middle frame. According to the unpowered dust suppression material guide groove, the expandable material guide groove with a large inner cavity and the circulating pressure relief device are adopted, the positive pressure of internal dust during continuous operation of equipment is reduced, and the situation that the dust escapes outwards through weak links of the material guide groove is reduced; and the collision area and frequency of the dust particles in the inner cavity are increased, so that the aim of efficiently removing dust is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of dust suppression and material guiding devices, in particular to a non-powered dust suppression material guiding trough. Background Technique

[0002] In industries such as coal, metallurgy, electric power, ports, mines, and chemical industries, belt conveyors are widely used to convey materials. The materials fall from the inlet material guiding trough onto the belt below. Due to the height difference between the upper and lower parts and the induced wind generated by the operation of the equipment, a large amount of dust will be generated, affecting the working environment and the safe operation of the equipment; the inner cavity of a common material guiding trough is relatively small, and there is no pressure relief device, so the positive pressure of the dust in the inner cavity is relatively large, and there is a greater chance of escaping into the atmosphere through the weak links of the material guiding trough. There is no wind blocking curtain and dust suppression unit inside a common material guiding trough, and the dust directly escapes into the atmosphere through the outlet of the material guiding trough, polluting the environment; the side plates of a common material guiding trough are made of common materials, with poor wear resistance, and large coal leakage incidents often occur due to the side plates being worn through, resulting in a large amount of maintenance work; at the same time, a common material guiding trough uses a common coal blocking rubber plate between the side plate and the belt, with only one line of defense against coal leakage and powder leakage. For the trough-shaped idlers and buffer beds of a common material guiding trough, the damaged parts need to be removed by disassembling the side plates of the material guiding trough to make room for replacing the damaged parts with new ones, resulting in a large amount of maintenance work. Therefore, we have proposed a non-powered dust suppression material guiding trough. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing non-powered dust suppression material guiding trough, the utility model provides a non-powered dust suppression material guiding trough, which has the advantages of adopting adjustable trough-shaped idlers and adjustable buffer beds. When the idlers and buffer beds are damaged and need to be replaced, their heights and angles can be directly adjusted, and the damaged parts can be conveniently taken out and new parts can be replaced, greatly reducing the maintenance workload, and solving the problems raised in the above background technique.

[0004] The utility model provides the following technical solution: a non-powered dust suppression feeding chute, including a belt, the belt is installed at the upper end of the intermediate frame, the lower part of the intermediate frame is placed on the ground through the belt conveyor legs, an expandable side plate of the feeding chute is installed at the upper part of the intermediate frame, an adjustable trough idler is installed at the lower end inside the belt, an adjustable buffer bed is installed in the middle of the upper end of the intermediate frame, a feeding chute support column is installed at the upper part on the side of the intermediate frame, a belt support idler is installed at the lower part of one end of the intermediate frame, an inlet coal dropping pipe is installed on the upper part of the adjustable buffer bed, expandable covers one, two, three, four, five and six are installed at the upper end of the expandable side plate of the feeding chute, an outlet dust curtain is installed at one end of the expandable side plate of the feeding chute, a feeding chute tail plate device is installed at the other end of the expandable side plate of the feeding chute, a tail air blocking curtain is installed inside the expandable side plate of the feeding chute and on one side of the feeding chute tail plate device, a circulating pressure relief device is installed in the middle of the upper end of the expandable side plate of the feeding chute, a wind blocking curtain assembly one and a wind blocking curtain assembly two are installed in sequence on both sides of the circulating pressure relief device and at the upper part of the expandable side plate of the feeding chute, and a dust suppression unit one and a dust suppression unit two are installed inside the expandable side plate of the feeding chute between the outlet dust curtain and the circulating pressure relief device.

[0005] Preferably, expandable covers one, two, three, four, five and six are boxes, dust suppression units one and two are installed inside both expandable cover four and expandable cover five, at the same time, the outlet dust curtain is arranged inside the outlet dust curtain, the circulating pressure relief device is arranged inside expandable cover three, and the inlet coal dropping pipe is arranged inside expandable cover two.

[0006] Preferably, the circulating pressure relief device includes a third base, a second upper cover is installed at the upper end of the third base, a second handwheel is installed on the side of the second upper cover, and a filter screen is installed at the front end of the second upper cover.

[0007] Preferably, the internal structures of the tail air blocking curtain, the wind blocking curtain assembly one and the circulating pressure relief device are the same, and all include a second base, a first upper cover is installed at the upper part of the second base, a first handwheel is installed at the upper part of the first upper cover at the same time, and a curtain blocking group is installed at equal intervals on the second base.

[0008] Preferably, the structures of dust suppression unit one and dust suppression unit two are the same, and both include a suspension bracket, the suspension bracket is installed on the inner side of expandable cover four through bolts, and a polymer rubber strip is installed at the lower end of the suspension bracket.

[0009] Preferably, the expandable side plate of the material guiding trough includes a side plate mother board, and a countersunk head screw is fixedly connected to one-third of the side plate mother board. The side plate mother board and the countersunk head screw are connected by a wear-resistant lining board.

[0010] Preferably, a sealing device is installed between the expandable side plate of the material guiding trough and the belt. The sealing device includes a Y-shaped anti-overflow skirt board, angle aluminum, a stainless steel pressing plate, and a pressing bolt. At the same time, the pressing bolt is clamped inside the card slot, and the card slot is welded to the side plate mother board. The Y-shaped anti-overflow skirt board is welded to the outer walls of both sides of the side plate mother board. The expandable side plate of the material guiding trough and the Y-shaped anti-overflow skirt board are bolted at the connection with the material guiding trough support column.

[0011] Preferably, the adjustable trough-shaped idler includes an adjustable base. The upper part of the adjustable base is installed with a bottom plate frame through a first adjustment bolt. The upper end of the bottom plate frame is installed between the first variable angle bracket and the idler through a second adjustment bolt, and an idler is installed.

[0012] Preferably, the adjustable buffer bed includes a first base. The inner side of the first base is fixedly connected with a fixed bracket through a connecting piece two. The side of the fixed bracket is installed with a second variable angle bracket through an adjustment bolt. The other end of the second variable angle bracket is fixedly connected with a buffer base. A buffer strip is installed outside the buffer base through a connecting piece one.

[0013] Preferably, the tail plate device of the material guiding trough includes a fixing plate. The tail plate device of the material guiding trough is installed inside the belt. At the same time, a left four-link rod and a right four-link rod are respectively installed at both ends of the fixing plate. A rotating shaft and a crank are respectively installed on the upper parts of the left four-link rod and the right four-link rod. A fixed seat one is installed on the upper part of the left four-link rod. A clamping bolt and a tail plate sealing leather are installed inside the tail plate mother board. The tail plate mother board is installed at the rear end of the fixing plate.

[0014] Preferably, the outlet dust-proof curtain includes a suspension rack and a dust-proof curtain. The dust-proof curtain is installed at the lower end of the suspension rack.

[0015] Compared with the existing non-powered dust suppression material guiding trough, the utility model has the following beneficial effects:

[0016] 1. For this non-powered dust suppression material guiding trough, an expandable material guiding trough with a larger inner cavity and a circulating pressure relief device are adopted to reduce the positive pressure of the dust inside the equipment during continuous operation, reduce the escape of dust through the weak links of the material guiding trough, and at the same time, a wind blocking curtain assembly and a dust suppression unit are adopted to increase the area and frequency of collision with the dust particles in the inner cavity, so as to achieve the purpose of efficient dust removal.

[0017] 2. For this unpowered dust suppression material guiding trough, wear-resistant steel plates are lined on the side plates, which can extend the service life of the side plates and reduce the number of maintenance times. A Y-shaped anti-overflow skirt plate is adopted between the side plates and the belt. The Y-shaped anti-overflow skirt plate is equivalent to two baffles, which can effectively prevent coal and pulverized coal from overflowing between the side plates and the belt, causing coal leakage and powder leakage.

[0018] 3. For this unpowered dust suppression material guiding trough, adjustable trough-shaped idlers and adjustable buffer beds are adopted. When the idlers and buffer beds are damaged and need to be replaced, their heights and angles can be directly adjusted, so that the damaged parts can be conveniently taken out and new parts can be replaced, greatly reducing the maintenance workload. An outlet dust blocking curtain arranged in a pointed shape can have a converging effect on the outlet coal material on the belt towards the middle, preventing coal scattering. Description of the Drawings

[0019] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0020] Figure 2 It is a structural schematic diagram of the circulating pressure relief device of the present utility model;

[0021] Figure 3 It is a structural schematic diagram of the wind blocking curtain of the present utility model;

[0022] Figure 4 It is a structural schematic diagram of the dust suppression unit of the present utility model;

[0023] Figure 5 It is a structural schematic diagram of the expandable side plate of the present utility model;

[0024] Figure 6 It is a structural schematic diagram of the variable trough-shaped idler group of the present utility model;

[0025] Figure 7 It is a structural schematic diagram of the variable angle buffer bed of the present utility model;

[0026] Figure 8 It is a structural schematic diagram of the outlet dust blocking curtain of the material guiding trough of the present utility model;

[0027] Figure 9 It is a structural schematic diagram of the tail plate device of the material guiding trough of the present utility model.

[0028] In the figure: 1. Tape; 2. Intermediate frame; 3. Adjustable trough idler; 301. Adjustable base; 302. Bottom plate frame; 303. First angle-changing bracket; 304. Idler; 305. First adjustment bolt; 306. Second adjustment bolt; 4. Adjustable buffer bed; 401. First base; 402. Fixed bracket; 403. Second angle-changing bracket; 404. Buffer base; 405. Buffer strip; 406. Connecting part 1; 407. Adjusting bolt; 408. Connecting part 2; 5. Leg of belt conveyor; 6. Support column of feeding chute; 7. Belt supporting idler; 8. Inlet coal dropping pipe; 9. Expansible cover plate 1; 10. Expansible cover plate 2; 11. Expansible cover plate 3; 12. Expansible cover plate 4; 13. Expansible cover plate 5; 14. Expansible cover plate 6; 15. Outlet dust curtain; 1501. Suspension frame; 1502. Dust-proof curtain; 16. Expansible side plate of feeding chute; 161. Side plate mother board; 162. Countersunk head screw; 163. Wear-resistant lining plate; 164. Card slot; 165. Stainless steel pressing plate; 166. Compression bolt; 167. Angle aluminum; 168. Y-shaped anti-overflow skirt plate; 17. Tail plate device of feeding chute; 170. Fixed plate; 171. Tail plate mother board; 172. Left four-bar linkage; 173. Rotating shaft; 174. Right four-bar linkage; 175. Crank; 176. Fixed seat 1; 177. Fixed seat 2; 178. Clamping bolt; 179. Tail plate sealing leather; 21. Tail air-blocking curtain; 211. Second base; 212. First upper cover; 213. First handwheel; 214. Curtain group; 22. Air-blocking curtain assembly 1; 23. Circulating pressure relief device; 231. Third base; 232. Second upper cover; 233. Second handwheel; 234. Filter screen; 24. Air-blocking curtain assembly 2; 25. Dust suppression unit 1; 251. Suspension frame; 252. Polymer rubber strip; 253. Bolt; 26. Dust suppression unit 2; 27. Sealing device. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9, a power-free dust suppression and material guiding chute, comprising a belt 1, the belt 1 is installed at the upper end of an intermediate frame 2, the lower part of the intermediate frame 2 is placed on the ground through a belt conveyor leg 5, an expandable side plate 16 of the material guiding chute is installed at the upper part of the intermediate frame 2, an adjustable trough idler 3 is installed at the lower end inside the belt 1, an adjustable buffer bed 4 is installed in the middle of the upper end of the intermediate frame 2, a material guiding chute support column 6 is installed at the upper part on the side of the intermediate frame 2, a belt supporting idler 7 is installed at the lower part of one end of the intermediate frame 2, an inlet coal dropping pipe 8 is installed on the upper part of the adjustable buffer bed 4, an expandable cover plate one 9, an expandable cover plate two 10, an expandable cover plate three 11, an expandable cover plate four 12, an expandable cover plate five 13 and an expandable cover plate six 14 are installed at the upper end of the expandable side plate 16 of the material guiding chute, an outlet dust-proof curtain 15 is installed at one end of the expandable side plate 16 of the material guiding chute, a material guiding chute tail plate device 17 is installed at the other end of the expandable side plate 16 of the material guiding chute, a tail air-blocking curtain 21 is installed inside the expandable side plate 16 of the material guiding chute and on one side of the material guiding chute tail plate device 17, a circulating pressure relief device 23 is installed in the middle of the upper end of the expandable side plate 16 of the material guiding chute, a wind-blocking curtain assembly one 22 and a wind-blocking curtain assembly two 24 are sequentially installed on the upper part of the expandable side plate 16 of the material guiding chute and on both sides of the circulating pressure relief device 23, and a dust suppression unit one 25 and a dust suppression unit two 26 are installed inside the expandable side plate 16 of the material guiding chute between the outlet dust-proof curtain 15 and the circulating pressure relief device 23.

[0031] Please refer to Figure 1 , wherein the expandable cover plate one 9, the expandable cover plate two 10, the expandable cover plate three 11, the expandable cover plate four 12, the expandable cover plate five 13 and the expandable cover plate six 14 are boxes, the dust suppression unit one 25 and the dust suppression unit two 26 are installed inside both the expandable cover plate four 12 and the expandable cover plate five 13, at the same time, the outlet dust-proof curtain 15 is arranged inside the outlet dust-proof curtain 15, the circulating pressure relief device 23 is arranged inside the expandable cover plate three 11, the inlet coal dropping pipe 8 is arranged inside the expandable cover plate two 10, the inner cavity of the material guiding chute is enlarged by more than 40% compared with that of a common material guiding chute, the positive pressure of the dust inside during continuous operation of the equipment is reduced, and the escape of dust through the weak links of the material guiding chute is reduced.

[0032] Please refer to Figure 2 , the circulating pressure relief device 23 includes a third base 231, a second upper cover 232 is installed at the upper end of the third base 231, a second handwheel 233 is installed on the side of the second upper cover 232, a filter screen 234 is installed at the front end of the second upper cover 232, wherein the third base 231 is a stainless steel filter screen, and there is one on each of the left and right sides of the belt conveyor. After being arranged inside the material guiding chute through the circulating pressure relief device 23, it can be cleaned regularly through this filter screen and recycled.

[0033] Please refer to Figure 3, the internal structures of the tail wind-blocking curtain 21, the first wind-blocking curtain assembly 22, and the circulating pressure-relief device 23 are the same, and each includes a second base 211. A first upper cover 212 is installed on the upper part of the second base 211. At the same time, a first handwheel 213 is installed on the upper part of the first upper cover 212. And a set of curtain blocks 214 are installed at equal intervals on the second base 211. By installing the tail wind-blocking curtain 21 inside the equipment, it can play a role in suppression and prevent dust from spreading.

[0034] Please refer to Figure 4 , where the first dust suppression unit 25 and the second dust suppression unit 26 have the same structure, and each includes a suspension bracket 251. The suspension bracket 251 is installed inside the fourth expanded cover plate 12 through bolts 253. A polymer rubber strip 252 is installed at the lower end of the suspension bracket 251. By setting the first dust suppression unit 25 and the second dust suppression unit 26, and the rubber strips are cross-socketed and limited to each other, the area and frequency of contact with dust particles in the cavity can be increased to achieve the purpose of improving dust removal.

[0035] Please refer to Figure 5 , the expanded side plate 16 of the material guiding trough includes a side plate mother board 161. At the same time, one-third of the side plate mother board 161 is fixedly connected with a countersunk head screw 162. The side plate mother board 161 and the countersunk head screw 162 are connected through a wear-resistant lining plate 163. The wear-resistant lining plate 163 is made of high-chromium alloy steel material. It can improve the wear resistance of the side plate, extend the service life of the side plate, and reduce the number of maintenance times.

[0036] Please refer to Figure 5 , a sealing device 27 is installed between the expanded side plate 16 of the material guiding trough and the belt 1. The sealing device 27 includes a Y-shaped anti-overflow skirt plate 168, an angle aluminum 167, a stainless steel pressing plate 165, and a pressing bolt 166. At the same time, the pressing bolt 166 is clamped inside the card slot 164. The card slot 164 and the side plate mother board 161 are welded to each other. The Y-shaped anti-overflow skirt plate 168 is welded to the outer walls of both sides of the side plate mother board 161. The expanded side plate 16 of the material guiding trough and the Y-shaped anti-overflow skirt plate 168 are bolted at the connection with the material guiding trough support column 6. The position of the equipment can be adjusted to improve the stability of the overall support of the equipment.

[0037] Please refer to Figure 6 , the adjustable trough-shaped idler 3 includes an adjustable base 301. The upper part of the adjustable base 301 is installed with a bottom plate frame 302 through a first adjustment bolt 305. The upper end of the bottom plate frame 302 is installed between the connection of the first variable-angle bracket 303 and the idler 304 through a second adjustment bolt 306. By adjusting the first adjustment bolt 305 and the second adjustment bolt 3, the height and angle of the idler can be adjusted to create space. It is convenient to take out the damaged parts and replace the new parts without disassembling the side plate of the material guiding trough, greatly reducing the maintenance workload.

[0038] Please refer to Figure 7, the adjustable buffer bed 4 includes a first base 401. The inner side of the first base 401 is fixedly connected with a fixed bracket 402 through a second connecting piece 408. A second variable-angle bracket 403 is installed on the side of the fixed bracket 402 through an adjusting bolt 407. The other end of the second variable-angle bracket 403 is fixedly connected with a buffer base 404. A buffer strip 405 is installed on the outside of the buffer base 404 through a first connecting piece 406, which can change the line contact between the belt 1 and the ordinary load-carrying roller into a surface contact between the conveyor belt and the buffer strip of the buffer bed, playing a better buffering role and reducing the damage to the belt 1. On the other hand, when the buffer strip 405 needs to be replaced due to large wear, the ordinary buffer plate needs to disassemble the side plate of the material guiding chute to make space for replacement. The buffer plate of the non-powered dust removal material guiding chute in this article can directly adjust the adjusting bolt 407 to make space for convenient maintenance.

[0039] Please refer to Figure 9 , the tail plate device 17 of the material guiding chute includes a fixing plate 170. The tail plate device 17 of the material guiding chute is installed inside the belt 1. At the same time, a left four-link 172 and a right four-link 174 are respectively installed at both ends of the fixing plate 170. A rotating shaft 173 and a crank 175 are respectively installed on the upper parts of the left four-link 172 and the right four-link 174. A first fixing seat 176 is installed on the upper part of the left four-link 172. A clamping bolt 178 and a tail plate sealing skin 179 are installed inside the tail plate mother board 171. The tail plate mother board 171 is installed at the rear end of the fixing plate 170. By rotating the crank 175, the telescoping of the left four-link 172 and the right four-link 174 can be controlled, and the opening of the tail plate sealing skin 179 and the clamping bolt 178 can be controlled.

[0040] Please refer to Figure 8 , the outlet dust-proof curtain 15 includes a hanging frame 1501 and a dust-proof curtain 1502. The dust-proof curtain 1502 is installed at the lower end of the hanging frame 1501. The dust-proof curtain 1502 is composed of single-layer strip-shaped polymer films and is directly hung on the hanging frame 1501. The dust-proof curtain 1502 arranged in a pointed shape mainly has a converging effect on the coal material at the outlet of the belt 1 towards the middle to prevent coal scattering.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power-free dust suppression feeding chute, comprising a belt (1), the belt (1) is installed at the upper end of an intermediate frame (2), the lower part of the intermediate frame (2) is placed on the ground through a belt conveyor leg (5), an expandable side plate (16) of the feeding chute is installed at the upper part of the intermediate frame (2), an adjustable trough idler (3) is installed at the lower end inside the belt (1), and an adjustable buffer bed (4) is installed in the middle of the upper end of the intermediate frame (2), characterized in that: A material guiding chute support pillar (6) is installed at the upper part on the side of the intermediate frame (2). A belt supporting idler (7) is installed at the lower part at one end of the intermediate frame (2). An inlet coal dropping pipe (8) is installed at the upper part of the adjustable buffer bed (4). At the upper end of the expandable side plate (16) of the material guiding chute, an expandable cover plate one (9), an expandable cover plate two (10), an expandable cover plate three (11), an expandable cover plate four (12), an expandable cover plate five (13) and an expandable cover plate six (14) are installed. An outlet dust-proof curtain (15) is installed at one end of the expandable side plate (16) of the material guiding chute. A tail plate device (17) of the material guiding chute is installed at the other end of the expandable side plate (16) of the material guiding chute. A tail air-blocking curtain (21) is installed inside the expandable side plate (16) of the material guiding chute and on one side of the tail plate device (17) of the material guiding chute. A circulating pressure relief device (23) is installed at the middle part of the upper end of the expandable side plate (16) of the material guiding chute. An air-blocking curtain assembly one (22) and an air-blocking curtain assembly two (24) are successively installed on the upper part of the expandable side plate (16) of the material guiding chute and on both sides of the circulating pressure relief device (23). An anti-dust unit one (25) and an anti-dust unit two (26) are installed between the outlet dust-proof curtain (15) and the circulating pressure relief device (23) and inside the expandable side plate (16) of the material guiding chute.

2. The unpowered dust suppression material guiding trough according to claim 1, characterized in that: Among them, the expandable cover plate one (9), the expandable cover plate two (10), the expandable cover plate three (11), the expandable cover plate four (12), the expandable cover plate five (13) and the expandable cover plate six (14) are boxes. An anti-dust unit one (25) and an anti-dust unit two (26) are installed inside both the expandable cover plate four (12) and the expandable cover plate five (13). At the same time, the outlet dust-proof curtain (15) is arranged inside the outlet dust-proof curtain (15). The circulating pressure relief device (23) is arranged inside the expandable cover plate three (11). The inlet coal dropping pipe (8) is arranged inside the expandable cover plate two (10).

3. The unpowered dust suppression feeding chute according to claim 1, characterized in that: The circulating pressure relief device (23) includes a third base (231). A second upper cover (232) is installed at the upper end of the third base (231). A second handwheel (233) is installed on the side of the second upper cover (232). A filter screen (234) is installed at the front end of the second upper cover (232).

4. The unpowered dust suppression and material guiding chute according to claim 1, characterized in that: The internal structures of the tail air-blocking curtain (21), the air-blocking curtain assembly one (22) and the circulating pressure relief device (23) are the same. They all include a second base (211). A first upper cover (212) is installed at the upper part of the second base (211). At the same time, a first handwheel (213) is installed at the upper part of the first upper cover (212). And a curtain blocking group (214) is installed at equal intervals on the second base (211).

5. The unpowered dust suppression and material guiding chute according to claim 1, characterized in that: Among them, the anti-dust unit one (25) and the anti-dust unit two (26) have the same structure. They both include a suspension bracket (251). The suspension bracket (251) is installed on the inner side of the expandable cover plate four (12) through bolts (253). A high molecular rubber strip (252) is installed at the lower end of the suspension bracket (2) 6. The unpowered dust suppression and material guiding chute according to claim 1, characterized in that: The expanded side plate (16) of the material guiding trough includes a side plate mother board (161). At the same time, a countersunk head screw (162) is fixedly connected to one-third of the side plate mother board (161). The side plate mother board (161) and the countersunk head screw (162) are connected through a wear-resistant lining plate (163).

7. The unpowered dust suppression and material guiding chute according to claim 1, characterized in that: A sealing device (27) is installed between the expanded side plate (16) of the material guiding trough and the tape (1). The sealing device (27) includes a Y-shaped anti-overflow skirt plate (168), an angle aluminum (167), a stainless steel pressing plate (165), and a pressing bolt (166). At the same time, the pressing bolt (166) is clamped inside the card slot (164). The card slot (164) and the side plate mother board (161) are welded to each other. The Y-shaped anti-overflow skirt plate (168) is welded to the outer walls of both sides of the side plate mother board (161). The expanded side plate (16) of the material guiding trough and the Y-shaped anti-overflow skirt plate (168) are bolted at the connection with the material guiding trough support column (6).

8. The unpowered dust suppression material guiding trough according to claim 1, wherein: The adjustable trough-shaped idler (3) includes an adjustable base (301). The upper part of the adjustable base (301) is provided with a bottom plate frame (302) through a first adjustment bolt (305). The upper end of the bottom plate frame (302) is installed through a second adjustment bolt (306) between the connection of the first variable-angle bracket (303) and the idler (3), and an idler (304) is installed therebetween.

9. The unpowered dust suppression feeding chute according to claim 1, wherein: The adjustable buffer bed (4) includes a first base (401). The inner side of the first base (401) is fixedly connected with a fixed bracket (402) through a connecting piece two (408). The side of the fixed bracket (402) is provided with a second variable-angle bracket (403) through an adjusting bolt (407). The other end of the second variable-angle bracket (403) is fixedly connected with a buffer base (404). The outside of the buffer base (404) is provided with a buffer strip (405) through a connecting piece one (406).

10. The unpowered dust suppression and material guiding trough according to claim 1, characterized in that: The tail plate device (17) of the material guiding trough includes a fixing plate (170). The tail plate device (17) of the material guiding trough is installed inside the tape (1). At the same time, a left four-bar linkage (172) and a right four-bar linkage (174) are respectively installed at both ends of the fixing plate (170). A rotating shaft (173) and a crank (175) are respectively installed on the upper parts of the left four-bar linkage (172) and the right four-bar linkage (174). A fixed seat one (176) is installed on the upper part of the left four-bar linkage (172). A tail plate mother board (171) is installed at the rear end of the fixing plate (170). A clamping bolt (178) and a tail plate sealing leather (179) are installed inside the tail plate mother board (171). The outlet dust-proof curtain (15) includes a suspension rack (15)01) and a dust-proof curtain (1502). The dust-proof curtain (1502) is installed at the lower end of the suspension rack (1501).

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