Durable detachable modular chute
By using modularly designed manganese steel liner assemblies and fasteners, the problem of frequent chute wear was solved, achieving durability and convenient maintenance of the chute, and improving coal mine processing efficiency and safety.
Patent Information
- Application Number
- CN202423115647.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing chutes frequently suffer wear and breakage in the coal mining industry. Maintenance is difficult, time-consuming, and labor-intensive. External welding is ineffective and can easily cause coal blockage and leakage, affecting mineral processing efficiency and safety.
Design a durable, detachable, modular chute that uses manganese steel liner assemblies connected with fasteners to form a split wear-resistant layer. The detachable installation is achieved through a connecting mechanism, avoiding welding maintenance, and a sealing gasket layer is used to improve sealing performance.
It effectively extends the maintenance cycle of the chute, reduces maintenance difficulty and cost, ensures ease of operation and sealing, avoids coal blockage and leakage at the steps, and improves mineral processing efficiency and safety.
Smart Images

Figure CN223495335U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of chute devices, specifically relating to a durable, detachable, modular chute. Background Technology
[0002] A sluice is a channel for the gravity transport of ore and rock, primarily used for moving goods from higher to lower elevations. It is widely used in small open-pit mines, and in large and medium-sized open-pit mines, sluices are often used in conjunction with shaft passes. There are various types of sluices, such as central sluices, transition sluices, and regulating sluices. The central sluice forms the body of the scraper conveyor; the transition sluice is used for the transition and connection between the head frame and tail frame and the central sluice; the regulating sluice is used to adjust the length of the scraper conveyor to adapt to changes in the working face length.
[0003] In coal mining, the chutes in coal washing plants handle large volumes of coal, leading to frequent wear and breakage and requiring frequent welding repairs. During chute maintenance, repairing the internal linings often requires cutting open the chute or entering confined spaces, making the work difficult, time-consuming, and labor-intensive. This not only severely impacts mineral processing efficiency but also results in poor external welding performance. After repairs, the chute interior is prone to blockages, frequent coal leaks, poor performance, and short service life. Frequent repairs are also time-consuming, labor-intensive, and detrimental to safety management.
[0004] To address this, we designed a durable, detachable, modular chute. Utility Model Content
[0005] The purpose of this invention is to provide a durable, detachable, modular chute to solve the aforementioned problems in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A durable, detachable, modular chute includes a fixed trough and a cover plate. The cover plate is installed on one side of the opening of the fixed trough to form a chute body that runs through both ends. A set of rear connectors is provided at each corner of the bottom of the fixed trough. A set of front connectors for installing the cover plate is provided on the inner trough edge of the opening side of the fixed trough. A set of liner assembly is provided on the three inner walls of the fixed trough and the inner side of the cover plate.
[0008] Furthermore, the liner assembly is composed of several manganese steel wear-resistant layers, and the liner assembly, the rear connector, and the front connector are all detachably assembled and fixed to the fixing groove and the cover plate by fasteners.
[0009] Furthermore, the manganese steel wear-resistant layer includes a manganese steel liner plate, the edges of which are integrally formed with an upper overlap and a lower overlap, and assembly notches are provided at the four corners of the edges of the manganese steel liner plate, and mounting holes are provided at the center of the manganese steel liner plate.
[0010] Furthermore, the shape and size of all the assembly notches on the manganese steel liner are consistent with the shape and size of the mounting holes. The mounting holes are composed of circular countersunk holes and hexagonal through holes, with the hexagonal through holes located at the center of the circular countersunk holes, and the circular countersunk holes located on the front side of the manganese steel liner.
[0011] Furthermore, the fastener includes a nut and a locking bolt. The locking bolt consists of a limiting cap, a positioning prism, and a screw. The size of the limiting cap is adapted to the size of the circular countersunk hole. The positioning prism is integrally formed at the center of the limiting cap and is adapted to the shape of the hexagonal through hole. The screw is integrally formed at the center of the positioning prism and is threadedly assembled with the nut.
[0012] Furthermore, the fixing groove and the cover plate are provided with a number of positioning holes for installing fasteners. The positioning holes are adapted to the shape of the positioning prism in the fastener, and the length of the positioning prism is less than the sum of the depth of the hexagonal through hole and the positioning hole.
[0013] Furthermore, both ends of the fixing groove and the cover plate are integrally formed with upper hooks and lower support hooks for fixing the manganese steel liner.
[0014] Furthermore, both sets of rear connecting parts are composed of several rear edge connecting mechanisms assembled end-to-end in upper and lower positions. The rear edge connecting mechanism includes an angle steel body B, on both sides of which a first overlapping part and a second overlapping part are integrally formed; the upper and lower ends of the angle steel body B are integrally formed with a third overlapping part and a fourth overlapping part, respectively. The four corners of the angle steel body B are provided with combination notches B for splicing with the assembly notches. When adjacent rear edge connecting mechanisms are assembled in upper and lower positions, the third overlapping part and the fourth overlapping part overlap and cooperate.
[0015] Furthermore, both sets of front connecting parts are composed of several front edge connecting mechanisms assembled end to end from top to bottom. The front edge connecting mechanism includes an angle steel body A. Both sides of the angle steel body A are integrally formed with a No. 5 overlapping part. The upper and lower ends of the angle steel body A are integrally formed with a No. 6 overlapping part and a No. 7 overlapping part, respectively. The four corners of the angle steel body A are provided with combined notches A for splicing with the assembly notches. When the adjacent front edge connecting mechanisms are assembled from top to bottom, the No. 6 overlapping part and the No. 7 overlapping part overlap and cooperate. A connector with the same structure as the fastener is welded into the combined notch A on the top side of the angle steel body A that contacts the cover plate.
[0016] Furthermore, the angle steel body A in the front connecting member and the angle steel body B in the rear connecting member, as well as the fasteners and connectors, are all manganese steel structural components.
[0017] Furthermore, the liner assembly also includes a sealing gasket layer located on the back of the manganese steel wear-resistant layer, the sealing gasket layer being composed of several rubber gaskets that are in contact with the back of the manganese steel liner.
[0018] Beneficial effects:
[0019] This invention designs the chute's structure as a split type. By fastening fasteners to the inner sides of the four side plates of the chute, a liner assembly made of manganese steel liners is formed on the entire inner wall of the chute using two sets of front and rear edge connection mechanisms. This creates a wear-resistant layer made of manganese steel liners, effectively extending the chute's maintenance cycle. Moreover, this wear-resistant layer is composed of several independent manganese steel liners and manganese steel structural components, allowing for easy disassembly and replacement of damaged structural components according to actual needs. This effectively reduces the difficulty of chute maintenance. The entire maintenance process does not require welding for repairs or patching, making the operation extremely convenient and simple, while ensuring effective sealing. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the disassembled structure of this utility model. Figure 1 ;
[0022] Figure 3 This is a schematic diagram of the disassembled structure of this utility model. Figure 2 ;
[0023] Figure 4 This is a partially enlarged structural diagram of the present invention. Figure 1 ;
[0024] Figure 5 This is a partially enlarged structural diagram of the present invention. Figure 2 ;
[0025] Figure 6 This utility model provides a schematic diagram of the locking bolt structure;
[0026] Figure 7 This is a schematic diagram of the manganese steel liner structure of this utility model;
[0027] Figure 8 This is an exploded structural diagram of a portion of the liner assembly of this utility model;
[0028] Figure 9 This is a schematic diagram of the structure of the rear connector of this utility model;
[0029] Figure 10 This is a schematic diagram of the front connector structure of this utility model;
[0030] Figure 11 This is a schematic diagram of the structure after partial structural assembly of this utility model. Figure 1 ;
[0031] Figure 12 This is a schematic diagram of the structure after partial structural assembly of this utility model. Figure 2 .
[0032] In the diagram: 1. Fixing groove; 2. Cover plate; 3. Liner assembly; 301. Manganese steel wear-resistant layer; 311. Manganese steel liner; 312. Upper overlap; 313. Lower overlap; 314. Assembly notch; 315. Mounting hole; 302. Sealing gasket; 4. Fasteners; 401. Nut; 402. Locking bolt; 421. Limit cap; 422. Positioning prism; 423. Screw; 5. Front edge connecting mechanism; 50 1. Angle steel main body A; 502. No. 5 lap joint; 503. No. 6 lap joint; 504. No. 7 lap joint; 505. Connector; 506. Combined notch A; 6. Rear edge connecting mechanism; 601. Angle steel main body B; 602. No. 1 lap joint; 603. No. 2 lap joint; 604. No. 3 lap joint; 605. No. 4 lap joint; 606. Combined notch B; 7. Positioning hole; 8. Upper hanging edge; 9. Lower support hook. Detailed Implementation
[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.
[0034] Example:
[0035] In response to the frequent wear and breakage of chutes in coal mining, and the need for cutting open the chute or entering confined spaces to repair the internal lining during maintenance, external welding often yields poor results. This not only presents significant challenges—time-consuming, labor-intensive, and difficult to perform—but also leads to coal leakage and blockages, resulting in short maintenance cycles and severely impacting coal mining efficiency. To address these issues, we offer a durable, modular, detachable chute. This design departs from the traditional enclosed, integrated chute structure, featuring a split chute body. The chute is designed with four separate sections... The inner side of the side plate is fitted with a liner assembly 3 made of manganese steel liner 311 via fasteners 4. With the aid of two sets of front edge connecting mechanisms 5 and rear edge connecting mechanisms 6, a wear-resistant layer of manganese steel liner 311 is formed on the entire inner wall of the chute. This effectively extends the chute's maintenance cycle. Furthermore, this wear-resistant layer is composed of several independent manganese steel liner 311s and manganese steel structural components. Damaged structural components can be freely disassembled and replaced according to actual needs, effectively reducing the difficulty of chute maintenance. The entire maintenance process does not require welding for repairs, making the operation extremely convenient and simple, while ensuring effective sealing. The specific solution is as follows:
[0036] like Figure 1-3 As shown, this embodiment provides a durable, detachable modular chute, specifically including a fixed chute 1 and a cover plate 2. The cover plate 2 is installed on the opening side of the fixed chute 1. The cover plate 2 and the fixed chute 1 are combined to form a chute body that runs through both ends. At the same time, in order to install the wear-resistant liner layer, a set of rear connectors is provided at the corner positions on both sides of the bottom of the fixed chute 1. At the same time, a set of front connectors for installing the cover plate 2 is provided on the inner chute edge on the opening side of the fixed chute 1. Meanwhile, a set of liner assembly 3 is provided on the three inner walls of the fixed chute 1 and the inner side of the cover plate 2. In order to facilitate the maintenance of the wear-resistant liner layer, the liner assembly 3 is composed of several manganese steel wear-resistant layers 301. Moreover, the liner assembly 3, the rear connectors, and the front connectors are all detachably assembled and fixed to the fixed chute 1 and the cover plate 2 by fasteners 4.
[0037] To assemble several manganese steel wear-resistant layers 301 into a single unit, so as to form a wear-resistant protective layer on the inner wall of the chute body, such as... Figure 7-8As shown, its manganese steel wear-resistant layer 301 includes a manganese steel liner 311, and the edges of the manganese steel liner 311 are integrally formed with an upper overlapping part 312 and a lower overlapping part 313. Assembly notches 314 are provided at the four corners of the edges of the manganese steel liner 311, and an installation hole 315 is provided at the center of the manganese steel liner 311. The shape and size of all the assembly notches 314 on the manganese steel liner 311 after assembly are consistent with the shape and size of the installation hole 315. The installation hole 315 consists of a circular countersunk hole and a hexagonal through hole, with the hexagonal through hole located at the center of the circular countersunk hole, which is located on the front side of the manganese steel liner 311. Figure 2 , Figure 6 As shown, the fastener 4 includes a nut 401 and a locking bolt 402. The locking bolt 402 consists of a limit cap 421, a positioning prism 422, and a screw 423. The size of the limit cap 421 is adapted to the size of the circular countersunk hole. The positioning prism 422 is integrally formed at the center of the limit cap 421 and is adapted to the shape of the hexagonal through hole. The screw 423 is integrally formed at the center of the positioning prism 422 and is threadedly assembled with the nut 401. Several mounting grooves 1 and cover plate 2 are provided for mounting... The positioning hole 7 of the fastener 4 is fitted with the positioning prism 422 in the fastener 4. The length of the positioning prism 422 is less than the sum of the depth of the hexagonal through hole and the positioning hole 7. In this structural design, the fastener 4 is circumferentially limited by the cooperation of the hexagonal through hole and the positioning hole 7 with the positioning prism 422, so as to prevent the fastener 4 from rotating as the nut 401 is turned. This allows the limiting cap 421 of the nut 401 to effectively fix the manganese steel liner 311 during the continuous turning process.
[0038] like Figure 8 As shown, when the manganese steel liner 311 is assembled to form the liner assembly 3, the upper overlapping part 312 and the lower overlapping part 313 on the upper, lower, left and right adjacent manganese steel liner 311 overlap and cooperate with each other. Moreover, the four assembly notches 314 at the intersection of the upper, lower, left and right manganese steel liner 311 are joined together to form a hole for installing the fastener 4. With the help of the design of the fastener 4 and the mounting hole 315, the manganese steel liner 311 is finally fixed.
[0039] The manganese steel liner 311 is a mass-produced accessory with fixed dimensions and shape specifications. To facilitate subsequent maintenance and the installation of the liner assembly 3, such as... Figure 4-5 As shown, both ends of the fixing groove 1 and the cover plate 2 are integrally formed with an upper hanging edge 8 and a lower support hook 9 for fixing the manganese steel liner 311. These hooks are used to cooperate with the overlapping parts located at the corresponding positions on the upper and lower ends of the manganese steel liner 311 in the liner assembly 3, thereby improving the fit between the liner assembly 3 and the inner edges of the upper and lower ends of the fixing groove 1 or the cover plate 2.
[0040] To ensure that the lining plate assemblies 3 installed on the four sides of the chute body can be effectively assembled and combined into a whole, both sets of rear connecting parts are composed of several rear side edge connecting mechanisms 6 assembled end to end. Specifically, as follows: Figure 9-11 As shown, the rear edge connecting mechanism 6 includes an angle steel body B601. The angle steel body B601 has a first lap joint 602 and a second lap joint 603 integrally formed on both sides. The first lap joint 602 and the second lap joint 603 are used to lap and engage with the corresponding lap joints of the two sets of liner assembly parts 3. The upper and lower ends of the angle steel body B601 have a third lap joint 604 and a fourth lap joint 605 integrally formed. When adjacent rear edge connecting mechanisms 6 are assembled by connecting the upper and lower parts, the third lap joint 604 and the fourth lap joint 605 lap and engage. The four corners of the angle steel body B601 are provided with combination notches B606 for splicing with the assembly notches 314. Both sets of front connecting parts are composed of several front edge connecting mechanisms 5 assembled end-to-end from top to bottom. Mechanism 5 includes an angle steel body A501. Both sides of the angle steel body A501 are integrally formed with a No. 5 overlapping part 502. The upper and lower ends of the angle steel body A501 are integrally formed with a No. 6 overlapping part 503 and a No. 7 overlapping part 504, respectively. The four corners of the angle steel body A501 are provided with combination notches A506 for splicing with the assembly notches 314. When the upper and lower parts of the adjacent front edge connecting mechanism 5 are assembled, the No. 6 overlapping part 503 and the No. 7 overlapping part 504 overlap and cooperate. The top of the combination notch A506 on the side of the angle steel body A501 that contacts the cover plate 2 is welded with a connector 505 with the same structure as the fastener 4. The angle steel body A501 in the front connecting part and the angle steel body B601 in the rear connecting part, as well as the fastener 4 and the connector 505 are all manganese steel structural parts.
[0041] When assembling the liner assembly 3, the angle steel body B601 is joined at the top and bottom. The adjacent assembly notch B606 on the same side, together with the adjacent assembly notch 314 on the same side of the overlapping manganese steel liner 311, forms a complete hole position with the same size and structure as the mounting hole 315, used to install the fastener 4. This allows one set of fasteners 4 to fix multiple targets. While ensuring the stable splicing and installation of each manganese steel liner 311, the number of fasteners 4 used can be reduced to the minimum. It should be further noted that... When installing the cover plate 2, its front connector is first installed onto the fixing groove 1 using fasteners 4. The installation process and method are the same as those for installing the rear connector. Before installing the cover plate 2, the corresponding liner assembly 3 needs to be installed onto the cover plate 2 using fasteners 4. Finally, the cover plate 2 is fastened to the opening of the fixing groove 1, so that the overlapping parts on both sides of the liner assembly 3 on the cover plate 2 and the corresponding side of the front connector are finally overlapped. With the help of the connector 505 fixed on the front connector, the cover plate 2 and its liner assembly 3 are finally fixed.
[0042] During maintenance, the cover plate 2 can be removed simply by disassembling the connector 505. Thanks to the overlapping design between the manganese steel liners 311 in the liner assembly 3 and the cooperation of the fasteners 4, the removal of the cover plate 2 will not affect the stability of other combined structures. Moreover, during maintenance, the damaged parts can be replaced at specific points, making maintenance convenient and quick, and requiring no welding operations throughout the process.
[0043] To ensure the airtightness of the installation position between the liner assembly 3 and the chute body and prevent coal leakage, the liner assembly 3 also includes a sealing gasket 302. The sealing gasket 302 is located on the back of the manganese steel wear-resistant layer 301. The sealing gasket 302 is composed of several rubber gaskets that are attached to the back of the manganese steel liner 311. It can not only improve the airtightness of the overlapping positions of each manganese steel liner 311, but also play a certain role in noise reduction.
[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A durable, detachable, modular chute, characterized in that, It includes a fixed groove (1) and a cover plate (2). The cover plate (2) is installed on one side of the opening of the fixed groove (1) to form a chute body that runs through both ends. A set of rear connecting parts is provided at the corner positions on both sides of the bottom of the fixed groove (1). A set of front connecting parts for installing the cover plate (2) is provided on the inner groove edge on one side of the opening of the fixed groove (1). A set of liner assembly (3) is provided on the three inner groove walls of the fixed groove (1) and the one side of the cover plate (2) located inside the fixed groove (1). The liner assembly (3) is composed of several manganese steel wear-resistant layers (301) and the liner assembly (3), the rear connector and the front connector are detachably assembled and fixed with the fixing groove (1) and the cover plate (2) by fasteners (4).
2. The durable, detachable, modular chute according to claim 1, characterized in that, The manganese steel wear-resistant layer (301) includes a manganese steel liner (311), the manganese steel liner (311) has an upper overlapping part (312) and a lower overlapping part (313) integrally formed on its edge, and an assembly notch (314) is provided at each of the four corners of the edge of the manganese steel liner (311), and an installation hole (315) is provided at the center of the manganese steel liner (311).
3. A durable, detachable, modular chute according to claim 2, characterized in that, The shape and size of all the assembly notches (314) on the manganese steel liner (311) after being assembled are consistent with the shape and size of the mounting holes (315). The mounting holes (315) are composed of a circular countersunk hole and a hexagonal through hole. The hexagonal through hole is located at the center of the circular countersunk hole, and the circular countersunk hole is located on the front side of the manganese steel liner (311).
4. A durable, detachable, modular chute according to claim 1, characterized in that, The fastener (4) includes a nut (401) and a locking bolt (402). The locking bolt (402) is composed of a limit cap (421), a positioning prism (422) and a screw (423). The size of the limit cap (421) is adapted to the size of the circular countersunk hole. The positioning prism (422) is integrally formed at the center of the limit cap (421) and is adapted to the shape of the hexagonal through hole. The screw (423) is integrally formed at the center of the positioning prism (422) and is threadedly assembled with the nut (401).
5. A durable, detachable, modular chute according to claim 1, characterized in that, The fixing groove (1) and the cover plate (2) are provided with a number of positioning holes (7) for installing fasteners (4). The positioning holes (7) are adapted to the shape of the positioning prism (422) in the fastener (4), and the length of the positioning prism (422) is less than the sum of the depth of the hexagonal through hole and the positioning hole (7).
6. A durable, detachable, modular chute according to claim 1, characterized in that, Both ends of the fixing groove (1) and the cover plate (2) are integrally formed with an upper hanging edge (8) and a lower support hook (9) for fixing the manganese steel liner (311).
7. A durable, detachable, modular chute according to claim 1, characterized in that, Both sets of rear connecting parts are composed of several rear edge connecting mechanisms (6) assembled end to end in upper and lower positions. The rear edge connecting mechanism (6) includes an angle steel body B (601). The two sides of the angle steel body B (601) are integrally formed with a first overlapping part (602) and a second overlapping part (603). The upper and lower ends of the angle steel body B (601) are integrally formed with a third overlapping part (604) and a fourth overlapping part (605). The four corners of the angle steel body B (601) are provided with a combination notch B (606) for splicing with the assembly notch (314). When the adjacent rear edge connecting mechanisms (6) are assembled by upper and lower docking, the third overlapping part (604) and the fourth overlapping part (605) overlap and cooperate.
8. A durable, detachable, modular chute according to claim 1, characterized in that, Both sets of front connecting parts are composed of several front edge connecting mechanisms (5) assembled end to end from top to bottom. The front edge connecting mechanism (5) includes an angle steel body A (501). The two sides of the angle steel body A (501) are integrally formed with a No. 5 overlapping part (502). The upper and lower ends of the angle steel body A (501) are integrally formed with a No. 6 overlapping part (503) and a No. 7 overlapping part (504). The four corners of the angle steel body A (501) are provided with a combination notch A (506) for splicing with the assembly notch (314). When the adjacent front edge connecting mechanisms (5) are assembled from top to bottom, the No. 6 overlapping part (503) and the No. 7 overlapping part (504) overlap and cooperate. The top of the combination notch A (506) on the side of the angle steel body A (501) that contacts the cover plate (2) is welded with a connector (505) with the same structure as the fastener (4).
9. A durable, detachable, modular chute according to claim 1, characterized in that, The angle steel body A (501) in the front connector and the angle steel body B (601) in the rear connector, as well as the fastener (4) and the connector (505), are all manganese steel structural components.
10. A durable, detachable, modular chute according to claim 1, characterized in that, The liner assembly (3) also includes a sealing gasket layer (302), which is located on the back of the manganese steel wear-resistant layer (301). The sealing gasket layer (302) is composed of several rubber gaskets that are attached to the back of the manganese steel liner (311).