Drawer type transfer station for bulk material transportation

Abstract

The embodiment of the utility model provides a drawer type transfer station for bulk material transportation. The drawer type transfer station comprises a transfer station hopper, a material receiving table and a belt conveyor. The transfer station hopper is of a big-end-up conical barrel structure. The material receiving table is of a drawer-shaped structure formed by connecting a bottom plate and side plates, the front end of the material receiving table faces the center of the transfer station hopper, and the rear end of the material receiving table faces the outer side of the transfer station hopper. The material receiving table is connected to the side wall of the material receiving side of the transfer station hopper, and the belt conveyor is located above the side wall opposite to the side wall of the material receiving side. According to the technical scheme, the drawer-shaped material receiving table is arranged, when lump ores with large particle sizes are transported, the lump ores do not directly fall on the inner wall of the material receiving side but fall into the material receiving table, and after the material receiving table is full of mineral aggregates, the mineral aggregates on the topmost layer flow downwards and are conveyed into the material receiving table on the next layer, so that the inner wall of the material receiving side is prevented from being in direct contact with the mineral aggregates, and the service life of the material receiving table is prolonged. Therefore, abrasion is reduced, and the service life is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of material transportation, in particular to a transfer station, and more specifically to a drawer-type transfer station for transporting bulk materials. Background Art

[0002] As the cornerstone of my country's heavy industry, the steel industry has a huge material throughput. During the mining and transportation process before smelting, a mineral transfer station is often needed to transport or transfer the minerals. It is usually an inverted conical funnel-shaped structure welded from steel plates, with a belt conveyor on the top. The rear end edge of the belt conveyor is aligned with the top of one side of the mineral transfer station. During transportation, after the minerals to be transferred are transported to the rear end edge of the belt conveyor, they are no longer supported and are thrown onto the inner wall of the mineral transfer station on the side opposite to the belt conveyor under the action of gravity. Then they flow downward along the inner wall and are collected and transferred by vehicles at the bottom of the funnel-shaped structure, or the minerals are dropped onto another conveyor line for transfer.

[0003] The types, particle size composition and physical properties of metal ore materials vary greatly. Fine-grained powder ore (or concentrate) has a smaller impact on the side wall of the transfer station, and because of its fine particle size (1-8mm) and uniform and rounded shape, the service life of the transfer station side wall lining is relatively long, usually about half a year. However, large-grained lump ore has a greater impact on the side wall in the transfer station, and because of its large particle size (>10mm), irregular shape and many edges and corners, it is very easy to cause serious wear and even perforation of the inner wall when passing through the transfer station. Long-term transportation of lump ore will affect the service life of the side wall lining (usually 1-2 months). In actual use, it is impossible to transport only powder ore without transporting lump ore. Therefore, premature damage to the inner wall of the transfer station is common. The existing technology has adopted a variety of methods to solve the problem of easy wear of the side wall when transporting lump ore in the transfer station, such as thickening the side wall plate thickness, using wear-resistant materials, etc.

[0004] In the process of implementing the present invention, the inventors discovered that the prior art has at least the following problems:

[0005] Several improvement measures previously proposed, such as increasing the thickness of the sidewalls and using wear-resistant materials, have not been effective. Therefore, the challenge is to optimize the structure of the material transfer station to reduce wear and increase the service life of the sidewalls even when transporting larger lumps of ore. Utility Model Content

[0006] The embodiment of the utility model provides a drawer-type transfer station for transporting bulk materials, which is used to solve the problem that the inner wall of the receiving side of the existing ore transfer station is severely worn and has a short service life when transporting large-sized lump ore.

[0007] To achieve the above-mentioned purpose, an embodiment of the present invention provides a drawer-type transfer station for transporting bulk materials, including a transfer station hopper, a receiving platform, and a belt conveyor arranged above the transfer station hopper for transporting bulk materials; the transfer station hopper is a conical cylindrical structure with a rectangular cross-section, which is larger at the top and smaller at the bottom; the receiving platform is a drawer-shaped structure formed by connecting a bottom plate and side plates, with the front end of the receiving platform facing the center of the transfer station hopper and the rear end of the receiving platform facing the outside of the transfer station hopper; the receiving platform is connected to the receiving side wall of the transfer station hopper, and the belt conveyor is located above the side wall opposite to the receiving side wall.

[0008] Furthermore, there are multiple material receiving platforms, and the multiple material receiving platforms are distributed at intervals up and down.

[0009] Furthermore, among every two adjacent material receiving platforms, the width of the upper material receiving platform is not less than the width of the lower material receiving platform.

[0010] Furthermore, when used for conveying lump ore, the uppermost receiving platform is located on the dropping track of the lump ore output by the belt conveyor.

[0011] Furthermore, a through hole is opened on the side wall of the transfer station hopper at a position corresponding to the material receiving platform, and the diameter of the through hole matches the vertical cross-sectional dimension of the material receiving platform; a guide rail is also connected to the side wall, and the guide rail is horizontally arranged along the front and rear directions of the material receiving platform, and the material receiving platform is provided with a guide wheel matching the guide rail.

[0012] Furthermore, the side plate of the material receiving platform close to the center of the transfer station hopper is an inclined plate, and the inclination angle of the inclined plate is consistent with the inclination angle of the side wall of the material receiving side.

[0013] Furthermore, the drawer-type transfer station for transporting bulk materials also includes a driving mechanism for driving the receiving platform to move back and forth.

[0014] Furthermore, the driving mechanism is a hydraulic cylinder, the cylinder body of the hydraulic cylinder is fixedly arranged on the outside of the transfer station hopper, and the piston rod end of the hydraulic cylinder is connected to the rear end of the material receiving platform.

[0015] Furthermore, the driving mechanism is a motor, the output shaft end of the motor is connected to a pushing gear, and the receiving table is fixedly connected to a rack that matches the pushing gear.

[0016] Furthermore, a plurality of strip-shaped blocking plates are fixedly connected to the upper surface of the bottom plate of the material receiving platform, and the length direction of the blocking plates is perpendicular to the length direction of the guide rails.

[0017] The above technical solution has the following beneficial effects:

[0018] In this technical solution, a drawer-shaped receiving platform is set up. When the bulk material to be transported is a lump ore with a larger transport particle size, the lump ore dropped from the tail of the belt conveyor will not fall directly onto the inner wall of the receiving side, but will fall into the "drawer" of the receiving platform. Later, when the receiving platform is full of ore, the ore on the top layer flows downward and is transported to the "drawer" of the receiving platform on the next layer. Therefore, during the whole process, the inner wall of the receiving side of the transfer station hopper avoids direct contact with the lump ore, thereby reducing wear and tear and greatly improving the service life; at the same time, the ore in the receiving platform is also transported outward in the form of overflow from the top, that is, a "receiving layer" is formed on the top, so there is always material in the "drawer" (except in the initial stage of work), so that the receiving platform itself (including the bottom plate and the surrounding side plates) will not be directly impacted by the falling ore and the wear caused by the flow of ore, so the service life of the receiving platform itself is also guaranteed, reducing the consumption of spare parts and the manpower for maintenance.

[0019] At the same time, the present technical solution also has the following characteristics: when the bulk material to be transported is fine-grained powder ore, the above-mentioned receiving platform will affect the work efficiency because it blocks the material, and the receiving platform in the present application is a movable structure. By dragging the receiving platform to the outside of the transfer station hopper, the receiving platform can be completely withdrawn from the inside of the transfer station hopper to the outside, and the inclined plate at its front end can completely block the through-hole opened on the side wall of the material head, that is, at this time the entire ore transfer station is restored to the standard form of the prior art, so that the powder ore can move smoothly downward along the inner wall of the hopper. Therefore, the drawer-type transfer station for bulk material transportation of the present application has a dual working mode, and its working state can be adjusted according to actual needs. In addition to the above-mentioned lump ore and powder ore, the transfer station of the present technical solution can also be used in similar industries for conveying bulk materials with similar properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a structural diagram of a drawer-type transfer station for transporting bulk materials (when transporting lump ore) according to an embodiment of the present utility model;

[0022] Figure 2 This is a structural diagram of a drawer-type transfer station for bulk material transportation (when conveying fine ore) according to an embodiment of the present utility model;

[0023] Figure 3 This is a structural diagram of the material receiving platform in the embodiment of the utility model;

[0024] Figure numbers: 1. Transfer station hopper; 2. Belt conveyor; 3. Material receiving platform; 31. Inclined plate; 32. Blocking plate; 4. Guide rail; 5. Hydraulic cylinder; 10. Lump ore; 11. Powder ore. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figure 1 As shown, an embodiment of the utility model provides a drawer-type transfer station for transporting bulk materials, comprising a transfer station hopper 1, a receiving platform 3, and a belt conveyor 2 for transporting bulk materials arranged above the transfer station hopper 1; the transfer station hopper 1 is a conical cylindrical structure with a rectangular cross-section, which is larger at the top and smaller at the bottom; the receiving platform 3 is a drawer-shaped structure formed by connecting a bottom plate and side plates, with the front end of the receiving platform 3 facing the center of the transfer station hopper 1 and the rear end of the receiving platform 3 facing the outside of the transfer station hopper 1; the receiving platform 3 is connected to the receiving side wall of the transfer station hopper 1, and the belt conveyor 2 is located above the side wall opposite to the receiving side wall.

[0027] In order to solve the above-mentioned problems, in the present technical solution, a drawer-shaped receiving platform is set up on the ore transfer station. When the bulk material to be transported is a lump ore with a larger particle size, the large-particle lump ore 10 dropped from the tail of the belt conveyor 2 will not fall directly onto the inner wall of the receiving side, but will fall into a "drawer" with a certain internal height (for example, 10 to 30 cm) formed by the side plates and bottom plate of the receiving platform 3. After that, when the lump ore 10 in the receiving platform 3 is full, the lump ore 10 on the top layer flows downward again. Therefore, in the whole process, the inner wall of the receiving side of the transfer station hopper 1 avoids the direct impact of the lump ore 10, and the lump ore 10 no longer flows directly downward along the inner wall of the receiving side, thereby reducing wear and greatly improving the use efficiency. The ore blocks 10 in the receiving platform 3 are transported outward in the form of overflow from the top, i.e. a "receiving layer" is formed on the top. Therefore, there is always material in the "drawer" (except in the initial stage of work). The subsequent falling ore blocks 10 will fall on top of the accumulated ore blocks 10 in the receiving platform 3, forming a wear-resistant form of "material hitting material", so that the bottom plate of the receiving platform 3 itself will not be directly impacted by the falling ore blocks 10, and the bottom plate and the surrounding side plates will not be worn by the flow of the ore blocks 10. Therefore, the service life of the receiving platform 3 itself is also guaranteed, and no frequent replacement or maintenance is required.

[0028] Furthermore, there are multiple receiving platforms 3, and the multiple receiving platforms 3 are spaced apart from each other. In theory, only one receiving platform 3 is provided at the material dropping position of the belt conveyor 2. However, in actual application, since the transfer station hopper 1 is usually very high, if only one receiving platform 3 is provided, the lump ore 10 overflowing from the top of the receiving platform 3 is likely to fall onto the inner wall of the receiving side of the material being sent down, which will also cause a certain degree of wear on the inner wall. For this reason, at the bottom of the receiving platform 3, in order to slow down the downward rush of the material, another layer of receiving platform 3 structure can be provided. If necessary, multiple layers of receiving platforms 3 can be provided to form a stepped structure. The lump ore 10 overflowing from the top of each layer of receiving platform 3 will be transported to the "drawer" of the receiving platform 3 on the next layer. After that, the lump ore 10 will be transported to the discharge port at the bottom of the transfer station hopper 1 in this relay manner to maximize the protection of the inner wall of the receiving side.

[0029] Furthermore, since the transfer station hopper 1 is a conical cylindrical structure that is larger at the top and smaller at the bottom, its cross-section becomes narrower as it goes down. Therefore, in order to prevent the lump ore 10 from falling, the width of the upper receiving platform 3 of each two adjacent receiving platforms 3 should be greater than or equal to the width of the lower receiving platform 3 (preferably arranged in a top-down manner). In actual application, since a receiving platform 3 with an overly large top is difficult to process, multiple receiving platforms 3 of the same specifications can be used in each layer and spliced together side by side to increase the equivalent width of the receiving platform 3 of that layer.

[0030] Furthermore, during the design, a comprehensive design should be made based on parameters such as the actual size of the transfer station hopper 1, the specifications of the belt conveyor 2, and the particle size of the lump ore 10 to ensure that when used to transport the lump ore 10, the topmost receiving platform 3 is located on the falling trajectory of the lump ore 10 output by the belt conveyor 2.

[0031] Furthermore, when the bulk material to be transported is a powder ore 11 with a finer particle size, although the above-mentioned receiving platform 3 can also complete the transportation task, the receiving platform 3 protruding inward will affect the work efficiency because it blocks the material. Therefore, the present application hopes that the drawer-type transfer station for transporting bulk materials can have a dual working mode, that is, its working state can be adjusted according to actual needs. To this end, the receiving platform 3 can be designed as a structure that can be moved horizontally. At this time, a through hole is opened on the side wall of the transfer station hopper 1 at the position corresponding to the receiving platform 3, and the diameter of the through hole is matched with the vertical cross-sectional size of the receiving platform 3, that is, the width of the through hole is slightly larger than the width of the receiving platform 3, and the height of the through hole is slightly larger than the height of the receiving platform 3. Then, a guide rail 4 is connected to the side wall, and the guide rail 4 is horizontally arranged along the front and rear direction of the receiving platform 3. The receiving platform 3 is provided with a guide wheel matching the guide rail 4. In this way, by dragging the receiving platform 3 along the guide rail 4 to the outside of the transfer station hopper 1 as shown in FIG. Figure 2 The state shown can make the inner side of the transfer station hopper 1 no longer affected by the receiving platform 3 (a part of the guide rail 4 can remain inside the transfer station hopper 1, because the width of the guide rail 4 is very small and will not affect the transportation of the powder ore 11), and the transportation of the powder ore 11 is successfully completed.

[0032] In addition, in actual application, when the receiving platform 3 is in the working state of conveying the lump ore 10, as shown in FIG. Figure 1 As shown, most of the front end of the receiving platform 3 should be extended into the transfer station hopper 1, and the rear part should be located outside the transfer station hopper 1. At this time, the part of the receiving platform 3 located outside the transfer station hopper 1 plays a certain counterweight role, and the pressing effect of the upper edge of the through hole on the side plate of the receiving platform 3 can ensure that it can be balanced during operation; if it is all extended into the inside of the transfer station hopper 1, it is easy to cause overturning due to the weight of the lump ore 10 plus the weight of the receiving platform 3 itself.

[0033] Furthermore, the side plate of the receiving platform 3 close to the center of the transfer station hopper 1 is an inclined plate 31, and the inclination angle of the inclined plate 31 is consistent with the inclination angle of the side wall of the receiving side. At this time, when the receiving platform 3 is dragged to the outside of the transfer station hopper 1, the inclined plate 31 just blocks the through hole and is connected to the side wall of the transfer station hopper 1 to form a plane, which facilitates the rapid flow of powdered ore. The entire drawer-type transfer station for transporting bulk materials is restored to a structure basically the same as that of an ordinary mineral transfer station.

[0034] Furthermore, the position of the receiving platform 3 can be changed by manual pushing and pulling, but in order to improve efficiency and reduce labor intensity, it is preferred that the receiving platform 3 is equipped with a driving mechanism so that the operator can remotely control its movement forward and backward.

[0035] The driving mechanism can adopt various forms. In the embodiment of the present utility model, two forms are preferably adopted:

[0036] The first is driven by a hydraulic cylinder 5, the cylinder body of which is arranged on the outside of the transfer station hopper 1 (e.g. Figure 1 As shown, a platform can be set up on the part of the guide rail 4 located outside the transfer station hopper 1, and a hydraulic cylinder support can be placed on the platform, and then the hydraulic cylinder 5 can be hinged on the hydraulic cylinder support). The piston rod end of the hydraulic cylinder 5 is connected to the rear end of the receiving platform 3. When the piston rod end is extended, the receiving platform 3 moves toward the inside of the transfer station hopper 1 to transport lump ore 10; when the piston rod end is retracted, the receiving platform 3 moves toward the outside of the transfer station hopper 1 to transport powdered mineral materials.

[0037] The second type is the gear rack drive form. A motor (not shown in the figure) can be set outside the transfer station hopper 1, and the output shaft end of the motor is connected to a pushing gear (not shown in the figure). A rack matching the pushing gear is fixedly connected to the receiving platform 3 (for example, the outer side of the receiving platform 3). When the motor rotates under control, the pushing gear rotates synchronously, thereby driving the rack to move forward or backward.

[0038] Further, such as Figure 3 As shown, the upper surface of the bottom plate of the receiving platform 3 is also fixedly connected with a plurality of strip-shaped blocking plates 32, and the blocking plates 32 can better stack and store the block ore 10 to form a wear-resistant form of "material hitting material" and prevent the block ore 10 at the bottom from sliding to wear the bottom plate. The length direction of the blocking plates 32 is perpendicular to the length direction of the guide rail 4. In a specific embodiment, the blocking plates 32 are made of 2cm×2cm square steel.

[0039] It should be noted that in actual application, limit blocks, sensors and other components should be installed at the front and rear ends of the guide rail 4 to prevent the receiving platform 3 from excessively extending forward or backward and causing instability of the receiving platform 3. At the same time, a diagonal support bracket 6 is installed below the part of the guide rail 4 located outside the transfer station hopper 1 to ensure that the guide rail 4, the platform, the drive mechanism and the receiving platform 3 are all securely fixed.

[0040] In actual application, the size of the transfer station hopper 1 and the size of the receiving platform 3 should be reasonably determined according to the actual situation of the project. If the receiving platform 3 is too large, it will be difficult to drag and the strength will also be affected. If the size is too small, each layer may require many receiving platforms 3 arranged side by side, resulting in increased construction costs. Generally, it is recommended that the length dimension of the receiving platform 3 (the dimension along the guide rail 4) be ≤80cm, and the width dimension of the receiving platform 3 (the dimension perpendicular to the guide rail 4) be ≤150cm.

[0041] In addition, in order to further improve the effect and avoid the contact between the lump ore 10 and the inner wall of the receiving side, the height of the side panels in other directions of the receiving platform 3 can be made higher than the inclined plate 31 to ensure that the lump ore 10 only overflows from the side of the inclined plate 31; accordingly, the through hole opened in the side wall of the receiving side should be determined according to the vertical projection of the receiving platform 3 at this time, for example, the middle part of the through hole is lower to adapt to the inclined plate 31, and two higher slender grooves are additionally opened on both sides to facilitate the entry and exit of the remaining side panels.

[0042] In the foregoing detailed description, various features are grouped together in a single embodiment to simplify the disclosure. This method of disclosure should not be interpreted as reflecting an intention that embodiments of the claimed subject matter require more features than are expressly recited in each claim. On the contrary, as reflected in the appended claims, the invention comprises less than all features of any individual disclosed embodiment. The appended claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

[0043] The above description of the disclosed embodiments is intended to enable any person skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments presented herein but is intended to be consistent with the broadest scope of the principles and novel features disclosed herein.

[0044] The above specific implementation methods further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above are only specific implementation methods of the utility model and are not used to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A drawer-type transfer station for bulk material transportation, characterized in that: The invention comprises a transfer station hopper (1), a receiving platform (3), and a belt conveyor (2) arranged above the transfer station hopper (1) for conveying bulk materials; the transfer station hopper (1) is a conical cylindrical structure with a rectangular cross section, which is larger at the top and smaller at the bottom; the receiving platform (3) is a drawer-shaped structure formed by connecting a bottom plate and side plates, the front end of the receiving platform (3) faces the center of the transfer station hopper (1), and the rear end of the receiving platform (3) faces the outside of the transfer station hopper (1); the receiving platform (3) is connected to the receiving side wall of the transfer station hopper (1), and the belt conveyor (2) is located above the side wall opposite to the receiving side wall.

2. The drawer-type transfer station for bulk material transportation according to claim 1, characterized in that: There are multiple material receiving platforms (3), and the multiple material receiving platforms (3) are distributed at intervals up and down.

3. The drawer-type transfer station for bulk material transportation according to claim 2, characterized in that: In every two upper and lower adjacent material receiving platforms (3), the width of the upper material receiving platform (3) is not less than the width of the lower material receiving platform (3).

4. The drawer-type transfer station for bulk material transportation according to claim 2, characterized in that: When used for conveying lump ore, the uppermost receiving platform (3) is located on the dropping track of the lump ore output by the belt conveyor (2).

5. The drawer-type transfer station for bulk material transportation according to claim 4, characterized in that: A through hole is provided on the side wall of the transfer station hopper (1) at a position corresponding to the material receiving platform (3), and the diameter of the through hole matches the vertical cross-sectional dimension of the material receiving platform (3); a guide rail (4) is also connected to the side wall, and the guide rail (4) is horizontally arranged along the front-rear direction of the material receiving platform (3), and a guide wheel matching the guide rail (4) is provided on the material receiving platform (3).

6. The drawer-type transfer station for bulk material transportation according to claim 5, characterized in that: The side plate of the material receiving platform (3) close to the center of the transfer station hopper (1) is an inclined plate (31), and the inclination angle of the inclined plate (31) is consistent with the inclination angle of the side wall of the material receiving side.

7. The drawer-type transfer station for bulk material transportation according to claim 5, characterized in that: It also includes a driving mechanism for driving the material receiving platform (3) to move forward and backward.

8. The drawer-type transfer station for bulk material transportation according to claim 7, characterized in that: The driving mechanism is a hydraulic cylinder (5), the cylinder body of the hydraulic cylinder (5) is fixedly arranged on the outside of the transfer station hopper (1), and the piston rod end of the hydraulic cylinder (5) is connected to the rear end of the receiving platform (3).

9. The drawer-type transfer station for bulk material transportation according to claim 7, characterized in that: The driving mechanism is a motor, the output shaft end of the motor is connected to a driving gear, and the receiving platform (3) is fixedly connected to a rack matching the driving gear.

10. The drawer-type transfer station for bulk material transportation according to claim 5, characterized in that: A plurality of strip-shaped blocking plates (32) are fixedly connected to the upper surface of the bottom plate of the material receiving platform (3), and the length direction of the blocking plates (32) is perpendicular to the length direction of the guide rail (4).

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