CN112299063B - Powder material ship unloading wharf belt conveyor dust leakage preventing device - Google Patents
Powder material ship unloading wharf belt conveyor dust leakage preventing device Download PDFInfo
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- CN112299063B CN112299063B CN202011381859.3A CN202011381859A CN112299063B CN 112299063 B CN112299063 B CN 112299063B CN 202011381859 A CN202011381859 A CN 202011381859A CN 112299063 B CN112299063 B CN 112299063B
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- cover
- guide rail
- dust cover
- dust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/181—Preventing escape of dust by means of sealed systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/60—Loading or unloading ships
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Abstract
The invention discloses a device for preventing dust leakage of a powdery material ship unloading wharf belt conveyor, and belongs to the technical field of dust prevention. The device comprises a dustproof telescopic cover, a cover body side wall, a guide rail, a pulley block and a guide rail joint; the cover body is arranged above the conveyer and can be folded and stretched, two ends of the cover body are respectively connected with the blanking pipe of the ship unloader, when the ship unloader moves, the cover body at the front end is compressed, the cover body at the rear end is elongated, the three ship unloaders can work in the same unloading section in a centralized manner, and can also work at any point in the full unloading section in a dispersible manner, and the whole process belt conveyer is in a full-closed state. The dustproof telescopic cover in the device is of a sectional combined structure, and the telescopic movement of the dustproof telescopic cover adopts a non-lubrication pressing wheel, a non-deflection wheel and a hook wheel structure, so that the protective cover can be prevented from being lifted by strong wind. The invention has the characteristics of simple structure, reliable operation, long service life and the like.
Description
Technical Field
The invention belongs to the technical field of dust prevention, relates to a dust leakage prevention device of a powdery material ship unloading dock belt conveyor, and particularly relates to a dust prevention device of a belt conveyor below a port ship unloading machine.
Background
The dust-proof device of the belt conveyor mostly adopts a fixed integral dust-proof cover for preventing the dust of the conveyed materials from leaking. But the belt conveyor for the port unloading ship is very different from the common belt conveyor. The port ship unloading belt conveyor is characterized in that: the length of the conveyor is greater than the maximum hull length. In order to improve the ship unloading speed, three grab bucket type unloading machines and two belt conveyors are usually arranged above the ship unloading belt conveyor, each unloading machine is provided with two unloading openings which are respectively communicated with the two belt conveyors, and the unloading openings are communicated with the groove bodies of the belt conveyors. The three unloading machines can unload at any point in the total length interval of the belt conveyor, can unload in a stationary state during unloading, can unload in a traveling state, can concentrate on the same unloading section to work, and can also distribute in the three unloading sections to work. The harbour wind power is very large, dust pollution waters and pollution shore vegetation are very serious, so far, the problem is not thoroughly solved, and the development of a device for preventing the dust from leaking out of a totally-enclosed ship unloading belt conveyor is urgent.
Disclosure of Invention
The invention provides a device for preventing dust leakage of a powdery material ship unloading wharf belt conveyor, which aims at the problems and the defects existing in the prior art. The invention provides a dust leakage preventing device of a powdery material ship unloading dock belt conveyor, which comprises a dustproof telescopic cover 3, a dustproof cover side wall fixing mechanism, a guide rail 312, a 7-shaped pulley 316, a linear pulley 317 and a guide rail joint 313.
Cover wall side bearer among the dust cover lateral wall fixed establishment is fixed on the belt conveyer support girder 204 of belt conveyer 2 left and right sides, and dustproof flexible cover 3 sets up in the top of belt conveyer 2, and dustproof flexible cover 3 can fold and stretch out and draw back, and the both ends of dustproof flexible cover 3 link to each other with the blanking pipe of adjacent grab ship unloader 4 respectively, and when grab ship unloader 4 removed, the dustproof flexible cover 3 of front end is shortened by the compression, and the dustproof flexible cover 3 of rear end is stretched out and drawn back, and whole process belt conveyer 2 all is in totally closed state.
The dustproof telescopic cover 3 comprises a first section of dustproof cover 308, a second section of dustproof cover 309, a third section of dustproof cover 310 and a fourth section of dustproof cover 311; one end of the first section dust cover 308 is connected with a tension frame 320 at the front end part, and the other end of the first section dust cover 308 is connected with the left side of the first grab ship unloader 401; the second section of dust cover 309 is installed between the first grab ship unloader 401 and the second grab ship unloader 402, the third section of dust cover 310 is installed between the second grab ship unloader 402 and the third grab ship unloader 403, and the fourth section of dust cover 311 is installed between the third grab ship unloader 403 and the tension frame at the rear end portion.
The first, second, third and fourth dust covers 308, 309, 310 and 311 have the same structure, and any one of the first, second, third and fourth dust covers 308, 309, 310 and 311 includes a left dust cover 301 and a right dust cover 302, the left dust cover 301 covers the first belt conveyor 201, the right dust cover 302 covers the second belt conveyor 202, and the left dust cover 301 has the same structure as the right dust cover 302.
The dust cover side wall fixing mechanism comprises a first cover wall side frame 304, a first cross beam 303, a first fence 102, a second cover side frame 306, a second cross beam 305, a third cross beam 303B, a third cover side frame 307, a fourth cover side frame 307B and a second fence 102B; the first cover wall side frame 304 is fixedly connected with the first fence 102 through a first cross beam 303, the first fence 102, the first cross beam 303 and the first cover wall side frame 304 form a three-dimensional truss, and a movable side plate is arranged in the first cover wall side frame 304 and can be pulled out upwards from the first cover wall side frame 304; the second cover side frame 306 is connected with the third cover side frame 307 through the second cross beam 305 to form a three-dimensional truss; the fourth housing side frame 307B, the third beam 303B, and the second rail 102B form a stereoscopic truss.
The guide rail 312 includes a left guide rail 314 and a right guide rail 315; the left guide rail 314 is welded to the first cover wall side frame 304 by a left guide rail frame 319, and the right guide rail 315 is welded to the second cover body side frame 306 by a right guide rail frame; the upper end of the left rail frame 319 is welded to the half of the left rail 314, while the other half of the left rail 314 is used for the roller path of the hook wheel in the 7-shaped pulley 316, and the side surface of the left rail 314 is used as the roller path of the anti-deflection wheel in the 7-shaped pulley 316; the pinch roller of the in-line pulley 317 is mounted on the left rail 314; the lower end of the left rail frame 319 is fixed to the upright post of the dust cover side wall fixing mechanism.
The left dust cover 301 is composed of a plurality of identical dust cover units, including a flange 321, a bolt group 322, a folding cover 323, a reinforcing plate 324, a bearing plate 325, a protection strip 326, a first rivet group 327, a first connecting band 328, a sewing line 329, a second connecting band 330, a second rivet group 331, a dust scraping brush 332, and a flexible pull band 318. The flange plates 321 are arranged at two ends of each dust cover unit, the flange plates 321 are connectors among the dust cover units, and the flange plates 321 of each dust cover unit are connected with each other through the bolt group 322; the folding cover 323, the fabric of which is three-proofing cloth, the folding cover 323 is connected with the reinforcing plate 324 by high-frequency welding, the folding part of the folding cover 323 connected with the bearing plate 325 is reinforced by the first pulling rivet group 327, and the outside of the folding part of the folding cover 323 connected with the bearing plate 325 is protected by the protective strip 326.
The reinforcing plate 324 is made of PVC sheet material, each fold is provided with one reinforcing plate 324, the lower end of the reinforcing plate 324 is fixedly connected with the first connecting belt 328 through high-strength glue, and the first connecting belt 328 is sewn with the flexible drawstring 318 through a sewing line 329; the lower end of the inside of the pleat provided with the bearing plate 325 is connected with the second connecting band 330 by high-strength glue, and simultaneously, the connection with the second connecting band 330 is reinforced by a second pulling rivet set 331 at the bonding position of the high-strength glue, and the second connecting band 330 is connected with the flexible pulling band 318 by a sewing line.
The bearing plates 325 are made of stainless steel, one bearing plate 325 is arranged at each four folds, a group of 7-shaped pulleys 316 and a group of straight pulleys 317,7 are arranged at the lower end of each bearing plate 325, and the roller paths of the hook wheels and the deflection prevention wheels in the group of straight pulleys 317,7 and the roller paths of the pressing wheels in the straight pulleys 317 are arranged on the guide rail 312. A dust brush 332 is mounted to the reinforcing plate 324 for cleaning dust from the guide rail 312. The flexible drawstring 318 is provided with three strips of nylon, and the length of the flexible drawstring 318 after each fold is straightened is 90% of the length of the folded cover 323 after each fold is straightened, that is, the flexible drawstring 318 is straightened to ensure that the folded cover 323 is kept in a V shape, and the purpose of the flexible drawstring is to ensure that the folded cover is basically not stressed when being stretched.
In order to facilitate overhauling a carrier roller of the belt conveyor, assembling and disassembling the dustproof telescopic cover, a side plate arranged on the side frame of the cover wall can be taken out. In order to keep the stability of the side frames of the cover wall, the outer side frames of the two belt conveyors are connected with the fence through the cross beam to form a three-dimensional truss, and the inner side frames of the two belt conveyors are also connected with each other through the cross beam to form the three-dimensional truss.
The telescopic movement of the dustproof telescopic cover moves along the track, and in order to reduce the running resistance, prevent running deviation and lifting by wind, the cover body is provided with a pinch roller, a deviation preventing wheel and a hook wheel, and the three pulleys all adopt a non-lubrication mode. In addition, a brush cleaning track (the cleaning cover body is provided with water flushing equipment) is arranged at a proper position of the cover body. In the stretching process of the cover body, the cover body is not stressed, the upper ends of the cover body and the bearing plate (the plate provided with the pulley block) are connected through bonding and rivet pulling, and the upper ends of the cover body and the reinforcing plate (the plate not provided with the pulley block) are connected through high-frequency welding.
The lower ends of the bearing plate and the reinforcing plate are connected with a connecting belt through bonding and rivet pulling, and the connecting belt is connected with a folding flexible pull belt through seaming. The device is provided with three flexible drawstrings, the length of each fold of each flexible drawstring is smaller than that of each fold of the cover body, namely, when the flexible drawstring is straightened, the cover body is still in a V-shaped state, so that the device is basically unstressed in the stretching process of the cover body, the flexible drawstring is stressed, and the flexible drawstring drives the folding cover body to stretch and retract through the bearing plate and the reinforcing plate. The telescopic cover may be damaged during long-term operation and needs to be replaced, so that three cover loading and unloading ports (guide rail joints 313) are formed in the rail, thereby facilitating replacement of the cover.
The invention has the following technical characteristics:
1. the belt conveyors are in a fully-closed state, and can meet the unloading requirements of ships with different sizes. The three grab bucket type unloading machines can work in the same unloading section in a centralized manner, and can also work in the three unloading sections in a distributed manner; the three grab ship unloader can unload to the belt conveyor in a stop-and-go state or a walking state.
2. The dustproof telescopic cover adopts a sectional combined structure, so that the dustproof telescopic cover is convenient to replace, maintain and assemble. The telescopic movement of the dustproof telescopic cover is powered by the walking of the grab bucket type unloading machine, and other power sources and control sources are not needed.
3. The telescopic movement of the dustproof telescopic cover adopts a non-lubrication pressing wheel, an anti-deflection wheel and a hook wheel structure, so that the running resistance can be reduced, and the protective cover can be prevented from being blown by strong wind; the flexible stress piece of the protective cover is a flexible drawstring, and the protective cover is not stressed, and has the advantages of simple structure, reliable work and long service life.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2;
FIG. 4 is an enlarged partial schematic view of FIG. 3;
FIG. 5 is a schematic view of a dust cap according to the present invention;
FIG. 6 is a schematic view of the partial enlarged structure of FIG. 5;
FIG. 7 is a schematic view of a rail joint according to the present invention;
fig. 8 is a schematic view of the installation and connection of the rail joint according to the present invention.
In the figure: 1: a dock platform; 101: dock dykes and dams; 102: a first rail; 102B: a second rail; 2: a belt conveyor; 201: a first belt conveyor; 202: a second belt conveyor; 203: a belt conveyor support; 204: a main beam of a bracket of a belt conveyor; 3: a dust-proof telescopic cover; 301: a left dust cover; 302: a right dust cover; 303: a first cross beam; 304: a first shroud wall sideframe; 305: a second cross beam; 303B: a third cross beam; 306: a second cover side frame; 307: a third cover side frame; 307B: a fourth cover side frame; 308: a first section dust cap; 309: a second section dust cap; 310: a third section of dust cover; 311: a fourth dust cover; 312: a guide rail; 313: a rail joint; 314: a left guide rail; 315: a right guide rail; 316: 7-shaped pulleys; 317: a straight-line pulley; 318: a flexible drawstring; 319: a left guide rail frame; 320: a tension frame; 321: a flange plate; 322: a bolt group; 323: folding the cover body; 324: a reinforcing plate; 325: a bearing plate; 326: a protection strip; 327: a first set of blind rivets; 328: a first connecting band; 329: stitching wires; 330: a second connecting band; 331: a second set of blind rivets; 332: a dust scraping brush; 333: a guide rail connecting plate; 334: a guide rail connecting block; 335: a side connection screw set; 336: a lower set of connecting screws; 4: grab bucket type ship unloader; 401: a first grapple type ship unloader; 402: a second grab ship unloader; 403: a third grab ship unloader; 404: a left blanking pipe; 405: a right blanking pipe; 406: a walking vehicle; 407: and (5) walking the track.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
In the figure, a wharf platform 1, a belt conveyor 2 and a grab ship unloader 4 are original equipment and facilities of a ship unloading wharf, and the core of the invention is a dustproof telescopic cover 3. The belt conveyor 2 is fixedly mounted on the dock platform 1 through a belt conveyor bracket 203 and a belt conveyor bracket main beam 204, the dock dike 101 is used for protecting the dock platform 1, and the grab ship unloader 4 can run on a travelling rail 407 through a travelling car 406.
The dustproof telescopic cover 3 comprises a first section of dustproof cover 308, a second section of dustproof cover 309, a third section of dustproof cover 310 and a fourth section of dustproof cover 311, and each section of dustproof cover has the same structure and comprises a left protection cover 301 and a right protection cover 302 with the same structure; the left protective cover 301 is covered on the first belt conveyor 201, the right dust cover 302 is covered on the second belt conveyor 202, the left protective cover 301 is connected with a left blanking pipe 404 on the grab ship unloader 4, and the right dust cover 302 is connected with a right blanking pipe 405 on the grab ship unloader 4.
Four cover wall side frames in the dust cover side wall fixing mechanism are respectively fixed on main beams of the belt conveyor brackets on the left side and the right side of the belt conveyor 2; the first cross member 303 is provided to reinforce rigidity and stability of the first side frame 304, and the first rail 102, the first cross member 303, and the first side frame 304 form a three-dimensional truss. The first cover wall side frame 304 is welded by square steel pipes, and a movable side plate is arranged in the first cover wall side frame 304 and can be pulled upwards from the first cover wall side frame 304, so that a carrier roller of the belt conveyor is convenient to overhaul. The second cross member 305 is used for connecting the second cover side frame 306 and the third cover side frame 307 to form a three-dimensional truss, so that the rigidity and stability of the second cover side frame 306 and the third cover side frame 307 are enhanced.
The guide rail 312 includes a left guide rail 314 and a right guide rail 315; the left guide rail 314 is welded to the first cover wall side frame 304 by a left guide rail frame 319, and the right guide rail 315 is welded to the second cover body side frame 306 by a right guide rail frame; the upper end of the left rail frame 319 is welded to the half of the left rail 314, while the other half of the left rail 314 is used for the roller path of the hook wheel in the 7-shaped pulley 316, and the side surface of the left rail 314 is used as the roller path of the anti-deflection wheel in the 7-shaped pulley 316; the pinch roller of the in-line pulley 317 is mounted on the left rail 314, and the lower end of the left rail frame 319 is fixed on the upright post of the dust cover side wall fixing mechanism. The upper end of the right guide rail frame is welded on the half position of the right guide rail 315, and the other half position of the right guide rail 315 is used for the rollaway nest of the hook wheel in the 7-shaped pulley 316, and the side surface of the right guide rail 315 is used as the rollaway nest of the anti-deflection wheel in the 7-shaped pulley 316; the pinch roller of the in-line pulley 317 is mounted on the right rail 315; the lower end of the right guide rail frame is fixed on the upright post of the dust cover side wall fixing mechanism.
The guide rail joint 313 is shown in fig. 7, the guide rail joint 313 is arranged on the guide rail 312, the guide rail joint 313 has three sections on the whole track, and the guide rail joint is arranged for the purpose of conveniently loading and unloading the dustproof telescopic cover; the rail joint 313 includes a rail connecting plate 333 and a rail connecting block 334, and the rail connecting plate 333 and the rail connecting block 334 are mounted on the rail 312 by a side connection screw group 335 and a lower connection screw group 336.
The structure of the dust-proof telescopic hood 3 is shown in fig. 5 and 6. The dust cover unit constituting the dust cover 3 includes a flange 321, a bolt group 322, a folding cover 323, a reinforcing plate 324, a bearing plate 325, a bead 326, a first rivet group 327, a first connecting band 328, a stitch line 329, a second connecting band 330, a second rivet group 331, a dust scraping brush 332, and a flexible pulling band 318. The flange 321 has 1 each at each end of each dust cover unit, and is a connecting piece between the dust cover units, and is connected to each other by a bolt group 322. The fabric of the folding cover 323 is made of three-proofing cloth, and is connected with the reinforcing plate 324 by high-frequency welding, the folding part with the bearing plate 325 is reinforced by the first pulling rivet group 327, and the outside of the folding part is protected by the protecting strip 326. The stiffener 324 is formed from a PVC sheet material with one sheet for each fold, and the lower end of the stiffener 324 is secured to the first attachment strap 328 by high strength glue, and the first attachment strap 328 is sewn to the flexible pull strap 318 by a sewn seam 329. The lower ends in the pleats having the load bearing plate 325 are bonded by a second connecting band 330 with a high strength adhesive, and the bonding is reinforced by a second rivet set 331 to the second connecting band 330, and the second connecting band 330 is connected to the flexible draw tape 318 by a sewing line.
The bearing plates 325 are made of stainless steel, one bearing plate 325 is arranged at each four folds, and a group of 7-shaped pulleys 316 and linear pulleys 317 are arranged at the lower end of each bearing plate 325. A dust wiper brush 332 is mounted to the reinforcing plate for cleaning dust from the rail. The flexible drawstring 318 is provided with three strips of nylon material, each fold having a length of 90% of the length of each fold of the folded cover 323 after being straightened, i.e., the flexible drawstring 318 is straightened to ensure that the folded cover 323 remains V-shaped, with the purpose of being substantially unstressed when the folded cover is stretched.
Claims (2)
1. The device for preventing dust leakage of the powdery material ship unloading wharf belt conveyor is characterized by comprising a dustproof telescopic cover (3), a dustproof cover side wall fixing mechanism, a guide rail (312), a 7-shaped pulley (316), a straight-line-shaped pulley (317) and a guide rail joint (313); the dust cover side frames in the dust cover side wall fixing mechanism are fixed on belt conveyor bracket main beams (204) on the left side and the right side of a belt conveyor (2), the dust cover (3) is arranged above the belt conveyor (2), the dust cover (3) can be folded and stretched, two ends of the dust cover (3) are respectively connected with blanking pipes of adjacent grab ship unloaders (4), when the grab ship unloaders (4) move, the dust cover (3) at the front end is compressed and shortened, the dust cover (3) at the rear end is stretched and stretched, and the whole process of the belt conveyor (2) is in a full-closed state; the dustproof telescopic cover (3) comprises a first section of dustproof cover (308), a second section of dustproof cover (309), a third section of dustproof cover (310) and a fourth section of dustproof cover (311), one end of the first section of dustproof cover (308) is connected with a tension frame (320) at the front end part, and the other end of the first section of dustproof cover (308) is connected with the left side of a first grab ship unloader (401); the second section of dust cover (309) is arranged between the first grab ship unloader (401) and the second grab ship unloader (402), the third section of dust cover (310) is arranged between the second grab ship unloader (402) and the third grab ship unloader (403), and the fourth section of dust cover (311) is arranged between the third grab ship unloader (403) and a tension frame at the rear end part; the first section dust cover (308), the second section dust cover (309), the third section dust cover (310) and the fourth section dust cover (311) have the same structure, any one of the first section dust cover (308), the second section dust cover (309), the third section dust cover (310) and the fourth section dust cover (311) comprises a left dust cover (301) and a right dust cover (302), the left dust cover (301) is covered on the first belt conveyor (201), the right dust cover (302) is covered on the second belt conveyor (202), and the left dust cover (301) has the same structure as the right dust cover (302); the dust cover side wall fixing mechanism comprises a first cover side wall frame (304), a first cross beam (303), a first rail (102), a second cover side frame (306), a second cross beam (305), a third cross beam (303B), a third cover side frame (307), a fourth cover side frame (307B) and a second rail (102B), wherein the first cover side wall frame (304) is fixedly connected with the first rail (102) through the first cross beam (303), the first rail (102), the first cross beam (303) and the first cover side frame (304) form a three-dimensional truss, movable side plates are arranged in the first cover side wall frame (304), the side plate can be pulled upwards from the first cover wall side frame (304); the second cover side frame (306) is connected with the third cover side frame (307) through the second cross beam (305) to form a three-dimensional truss; the fourth cover side frame (307B), the third cross beam (303B) and the second fence (102B) form a three-dimensional truss; the guide rail (312) comprises a left guide rail (314) and a right guide rail (315), the left guide rail (314) is welded on the first cover wall side frame (304) through a left guide rail frame (319), and the right guide rail (315) is welded on the second cover body side frame (306) through a right guide rail frame; the upper end of the left guide rail frame (319) is welded on one half of the left guide rail (314), the other half of the left guide rail (314) is used for a roller path of a hook wheel in the 7-shaped pulley (316), and the side surface of the left guide rail (314) is used as a roller path of an anti-deflection wheel in the 7-shaped pulley (316); the pinch roller of the linear pulley (317) is arranged on the left guide rail (314); the lower end of the left guide rail frame (319) is fixed on an upright post of the dust cover side wall fixing mechanism; the left dust cover (301) is composed of a plurality of dust cover units with the same structure, and each dust cover unit comprises a flange plate (321), a bolt group (322), a folding cover body (323), a reinforcing plate (324), a bearing plate (325), a protection strip (326), a first pull rivet group (327), a first connecting belt (328), a sewing wire (329), a second connecting belt (330), a second pull rivet group (331), a dust scraping brush (332) and a flexible pull belt (318); the flange plates (321) are arranged at two ends of each dust cover unit, the flange plates (321) are connectors among the dust cover units, and the flange plates (321) of each dust cover unit are connected with each other through the bolt groups (322); the fabric of the folding cover body (323) is three-proofing fabric, the folding cover body (323) is connected with the reinforcing plate (324) through high-frequency welding, the folding part of the folding cover body (323) connected with the bearing plate (325) is reinforced by the first pulling rivet set (327), and the outside of the folding part of the folding cover body (323) connected with the bearing plate (325) is protected by the guard bar (326); the reinforcing plates (324) are made of PVC sheets, each fold is provided with one reinforcing plate (324), the lower ends of the reinforcing plates (324) are fixedly connected with the first connecting bands (328) through high-strength glue, and the first connecting bands (328) are sewn with the flexible pull bands (318) through the sewing lines (329); while the lower end in the pleat provided with the bearing plate (325) is connected with the second connecting band (330) through high-strength glue, the connection with the second connecting band (330) is reinforced by the second pulling rivet set (331) at the bonding position of the high-strength glue, and the second connecting band (330) is connected with the flexible pulling band (318) through a sewing line; the bearing plates (325) are made of stainless steel, each four folds are provided with one bearing plate (325), the lower end of each bearing plate (325) is provided with a group of 7-shaped pulleys (316) and a group of straight pulleys (317), and the roller paths of the hook wheels and the deflection prevention wheels in the 7-shaped pulleys (316) and the roller paths of the pinch wheels in the straight pulleys (317) are arranged on the guide rail (312); the dust scraping brush (332) is arranged on the reinforcing plate (324) and is used for cleaning dust on the guide rail (312); the three flexible pull straps (318) are made of nylon, the length of each fold of the flexible pull strap (318) after being straightened is 90% of the length of each fold of the folding cover body (323) after being straightened, namely the flexible pull straps (318) ensure that the folding cover body (323) is kept in a V shape after being straightened.
2. The powder material ship unloading dock belt conveyor dust leakage prevention device according to claim 1, characterized in that the guide rail joint (313) is arranged on the guide rail (312), the guide rail joint (313) has three sections on the full-length rail, the guide rail joint (313) comprises a guide rail connecting plate (333) and a guide rail connecting block (334), and the guide rail connecting plate (333) and the guide rail connecting block (334) are arranged on the guide rail (312) through a side connecting screw set (335) and a lower connecting screw set (336).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011381859.3A CN112299063B (en) | 2020-12-01 | 2020-12-01 | Powder material ship unloading wharf belt conveyor dust leakage preventing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011381859.3A CN112299063B (en) | 2020-12-01 | 2020-12-01 | Powder material ship unloading wharf belt conveyor dust leakage preventing device |
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| CN112299063A CN112299063A (en) | 2021-02-02 |
| CN112299063B true CN112299063B (en) | 2024-05-31 |
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| CN202011381859.3A Active CN112299063B (en) | 2020-12-01 | 2020-12-01 | Powder material ship unloading wharf belt conveyor dust leakage preventing device |
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| CN113844837B (en) * | 2021-09-17 | 2023-05-23 | 中国人民解放军63653部队 | Folding conveyor belt device |
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