Mineral aggregate transfer method

Abstract

The embodiment of the invention provides a mineral aggregate transfer method which comprises the following steps: when mineral aggregates to be transferred are blocky mineral aggregates, a drawer-shaped material receiving table with an upward opening is arranged on the inner side of a 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 material receiving table is positioned on a throwing track of the blocky mineral aggregates; blocky mineral aggregates are conveyed into a transfer station hopper through a belt conveyor; after the material receiving table is fully paved with blocky mineral aggregates to form an accumulated material buffer layer, the subsequently falling blocky mineral aggregates fall above the accumulated material buffer layer and slide downwards along the top surface of the accumulated material buffer layer; and blocky mineral aggregates are collected at a discharge hole in the bottom of the transfer station hopper. After the technical scheme is adopted, when blocky mineral aggregates with large particle sizes are transported, the blocky mineral aggregates do not directly fall onto the inner wall of the material receiving side but fall into the material receiving table and then flow downwards, so that direct contact between the side wall of the material receiving side and the mineral aggregates is avoided, abrasion is reduced, and the service life is greatly prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical mining, and in particular to a method for transporting ore. Background Art

[0002] As the cornerstone of my country's heavy industry, the steel industry has a huge material throughput. Before smelting, it is often necessary to use a material transfer station for transfer. The material transfer station is usually an inverted conical funnel-shaped structure welded from steel plates, with a belt conveyor on the top. The rear edge of the belt conveyor is aligned with the top of one side of the material transfer station. During operation, after the ore to be transferred is transported to the rear edge of the belt conveyor, it is no longer supported and is thrown onto the inner wall of the ore transfer station on the side opposite to the belt conveyor under the action of gravity. Then it flows downward along the inner wall and is collected and transferred by vehicles at the bottom of the funnel-shaped structure, or the ore falls onto another conveyor line for transfer.

[0003] The types, particle size composition and physical properties of metal ore materials vary greatly. The impact of fine-grained powdered ore materials (or concentrates) on the side wall of the transfer station is small, and because of their fine particle size (1-8mm) and uniform and rounded shape, the service life of the side wall lining of the transfer station is relatively long, usually about half a year; while the impact of large-grained block ore materials on the side wall in the transfer station is large, and because of their 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 block ore materials will affect the service life of the side wall lining (usually 1-2 months). In actual use, it is impossible to transport only powdered ore materials without transporting block ore materials. 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 block ore in the transfer station, such as thickening the thickness of the side wall plate, using wear-resistant materials, etc.

[0004] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art:

[0005] The aforementioned improvement measures, such as increasing the thickness of the side wall plate and using wear-resistant materials, have not achieved satisfactory results. Therefore, how to optimize the structure of the ore transfer station to reduce wear and tear when transporting large-sized block ore and increase the service life of its side wall is a problem that needs to be solved. Summary of the invention

[0006] The embodiment of the present invention provides a mineral material transfer method, which is used to solve the problem that the inner wall of the receiving side of the existing mineral material transfer station is severely worn and has a short service life when conveying block mineral materials with larger particle sizes.

[0007] To achieve the above-mentioned purpose, on the one hand, an embodiment of the present invention provides a method for transferring mineral materials, including: when the mineral materials to be transferred are block mineral materials, the block mineral materials are transferred into the transfer station hopper by a belt conveyor arranged on the top of the transfer station hopper; the block mineral materials are collected at the bottom discharge port of the transfer station hopper; before transferring the mineral materials into the transfer station hopper, it also includes: a receiving platform is arranged on the inner side of the transfer station hopper to protect the receiving side wall, the receiving platform is a drawer-like structure surrounded by four side panels and a horizontal bottom plate, the receiving platform is connected to the receiving side wall, and the receiving platform is located on the falling trajectory of the block mineral materials falling from above it; in the process of transferring the mineral materials into the transfer station hopper, the receiving platform is filled with block mineral materials to form a material accumulation buffer layer, and then the subsequent falling block mineral materials fall above the material accumulation buffer layer and slide downward along the top surface of the material accumulation buffer layer to avoid or reduce the impact of the falling block mineral materials on the receiving side wall.

[0008] Furthermore, the receiving platform is provided with multiple layers, and the multiple layers of receiving platforms are arranged at intervals up and down; the receiving platform is located on the falling trajectory of the block mineral materials falling from above it, specifically including: the receiving platform on the top layer is located on the falling trajectory of the block mineral materials falling from the belt conveyor; for the receiving platform on the non-top layer, it is located on the falling trajectory of the block mineral materials falling from the adjacent receiving platform above.

[0009] Furthermore, the mineral material transfer method also includes: when the mineral material to be transferred is powdered mineral material, the material receiving platform is removed from the inner side of the transfer station hopper, and then the powdered mineral material is transported into the transfer station hopper by a belt conveyor, so that the powdered mineral material flows downward along the side wall of the material receiving side, and the powdered mineral material is collected at the discharge port.

[0010] Furthermore, the mineral material transfer method also includes: setting a horizontal guide rail on the side wall of the material receiving side of the transfer station hopper, and making the front end of the guide rail located on the inner side of the transfer station hopper and the rear end of the guide rail located on the outer side of the transfer station hopper; setting a guide wheel matching the guide rail on the material receiving platform; opening a through hole on the side wall of the material receiving side for the material receiving platform to pass through; removing the material receiving platform from the inner side of the transfer station hopper, specifically including: dragging the material receiving platform along the guide rail to the outer side of the transfer station hopper.

[0011] Furthermore, the material receiving platform is dragged to the outside of the transfer station hopper by a preset driving mechanism.

[0012] Furthermore, the driving mechanism is a hydraulic cylinder; the cylinder body of the hydraulic cylinder is 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.

[0013] Furthermore, the driving mechanism is a motor; a gear is connected to the output shaft end of the motor, and a rack matching the gear is arranged on the material receiving table.

[0014] Furthermore, the mineral material transfer method also includes: setting the side plate of the material receiving platform close to the center of the transfer station hopper as an inclined plate, and making the inclination angle of the inclined plate consistent with the inclination angle of the side wall of the material receiving side.

[0015] Furthermore, the mineral material transfer method also includes: fixing a plurality of strip-shaped blocking plates on the upper surface of the bottom plate of the material receiving platform, and making the length direction of the blocking plates perpendicular to the length direction of the guide rails.

[0016] Furthermore, the mineral material transfer method includes: after the block mineral material falls from the tail of the belt conveyor, it falls into the top material receiving platform, the top material receiving platform is filled with block mineral material to form a top material accumulation buffer layer, and the block mineral material that continues to fall from the tail of the belt conveyor falls above the top material accumulation buffer layer and falls along the top surface of the top material accumulation buffer layer;

[0017] For the receiving platforms on other layers that are not the top receiving platform and the bottom receiving platform, after receiving the block mineral materials dropped from the adjacent receiving platform above, the block mineral materials are spread all over the receiving platform on the current layer to form a material accumulation buffer layer on the current layer, and the block mineral materials that continue to drop from the adjacent receiving platform above fall above the material accumulation buffer layer on the current layer and fall along the top surface of the material accumulation buffer layer on the current layer;

[0018] The bottom receiving platform receives the block mineral materials falling from the adjacent receiving platform above, and then fills the bottom receiving platform with the block mineral materials to form a bottom material accumulation buffer layer. Subsequently, the block mineral materials that continue to fall from the adjacent receiving platform above fall above the bottom material accumulation buffer layer, and fall along the top surface of the bottom material accumulation buffer layer to the bottom discharge port of the transfer station hopper.

[0019] On the other hand, an embodiment of the present invention further provides a mineral material transfer station, comprising a transfer station hopper, a material receiving platform, and a belt conveyor for conveying mineral materials arranged above the transfer station hopper; 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 material receiving platform is a drawer-like structure formed by connecting a bottom plate and side plates, with the front end of the material receiving platform facing the center of the transfer station hopper and the rear end of the material receiving platform facing the outside of the transfer station hopper; the material receiving platform is connected to the side wall of the transfer station hopper on the material receiving side, and the belt conveyor is located above the side wall opposite to the side wall on the material receiving side; the material receiving platform is located on the falling trajectory of the lump ore falling from above.

[0020] Furthermore, there are multiple material receiving platforms, and the multiple material receiving platforms are spaced apart and distributed up and down.

[0021] Furthermore, among every two upper and lower adjacent material receiving platforms, the width of the upper material receiving platform is not less than the width of the lower material receiving platform.

[0022] 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 direction of the material receiving platform, and a guide wheel matching the guide rail is provided on the material receiving platform.

[0023] 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.

[0024] Furthermore, the novel mineral material transfer station also includes a driving mechanism for driving the material receiving platform to move forward and backward.

[0025] 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.

[0026] Furthermore, the driving mechanism is a motor, the output shaft end of the motor is connected to a driving gear, and the receiving table is fixedly connected to a rack matching the driving gear.

[0027] 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.

[0028] The above technical solution has the following beneficial effects:

[0029] In the present technical scheme, a drawer-shaped receiving platform is used as a receiving mechanism for block-shaped mineral materials. When transporting block-shaped mineral materials with larger particle sizes, the block-shaped mineral materials 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. After that, when the receiving platform is full of mineral materials, the mineral materials on the top layer will flow downward and be 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 block-shaped mineral materials, thereby reducing wear and tear and greatly improving the service life. At the same time, the mineral materials in the receiving platform are also transported outward in the form of overflow from the top, that is, a "material accumulation buffer layer" is formed on the top, so there is always material in the "drawer" (except for 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 mineral materials and the wear caused by the flow of the mineral materials. Therefore, the service life of the receiving platform itself is also guaranteed, reducing the consumption of spare parts and the manpower for maintenance.

[0030] At the same time, the technical solution also has the following characteristics: when used to transport powdered mineral materials with finer particle sizes, the above-mentioned material receiving platform will affect work efficiency due to blocking the materials, while the material receiving platform in the present application is a movable structure. By dragging the material receiving platform to the outside of the transfer station hopper, the material 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 mineral material transfer station is restored to the standard form of the prior art, so that the powdered mineral material can move smoothly downward along the inner wall of the hopper. Therefore, the new mineral material transfer station of the present application has a dual working mode and can adjust its working state according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. 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 creative work.

[0032] Figure 1 is a flow chart of a method for transporting mineral materials according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of a specific embodiment of the present invention when conveying bulk mineral materials;

[0034] Figure 3 This is a schematic diagram of a specific embodiment of the present invention when conveying powdered mineral materials;

[0035] Figure 4 It is a structural schematic diagram of a material receiving table used in a specific embodiment of the present invention;

[0036] 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. Powdered ore. DETAILED DESCRIPTION

[0037] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0038] An embodiment of the present invention provides a method for transporting mineral materials, comprising:

[0039] When the ore to be transferred is a block ore, the block ore is conveyed into the hopper of the transfer station through a belt conveyor arranged on the top of the hopper of the transfer station;

[0040] Collecting the block mineral material at the bottom discharge port of the transfer station hopper;

[0041] Before conveying the ore into the transfer station hopper, the method further includes: arranging a receiving platform for protecting the receiving side wall on the inner side of the transfer station hopper, wherein the receiving platform is a drawer-like structure formed by four side panels and a horizontal bottom plate, and the receiving platform is connected to the receiving side wall, and the receiving platform is located on the drop trajectory of the block ore falling from above the receiving platform;

[0042] During the process of conveying mineral materials into the hopper of the transfer station, the receiving platform is filled with block mineral materials to form a material accumulation buffer layer. After that, the subsequent falling block mineral materials fall onto the above the material accumulation buffer layer and slide downward along the top surface of the material accumulation buffer layer to avoid or reduce the impact of the falling block mineral materials on the side wall of the receiving side.

[0043] In order to solve the aforementioned problems, in the present application, the block mineral materials dropped from the tail of the belt conveyor are no longer allowed to fall freely and directly sprinkled on the inner wall of the receiving side. Instead, a receiving platform is set on the inner wall of the receiving side to support the falling block mineral materials, thereby avoiding direct impact on the inner wall of the receiving side; at the same time, the receiving platform is designed as a drawer-like structure with a certain inner depth, which can accommodate a certain amount of block mineral materials to form a material accumulation buffer layer. The subsequent falling block mineral materials will fall on the top of the material accumulation buffer layer and then "overflow" downwards. Therefore, the material accumulation buffer layer inside the receiving platform is actually basically motionless, and only the block mineral materials on the top are continuously transported downwards, thereby avoiding continuous impact on the bottom plate of the receiving platform. The entire conveying process forms a form of "material hitting material", and the inner wall of the receiving side, the bottom plate of the receiving platform, the side plates, etc. are all effectively protected, and no longer need to be frequently replaced or repaired like the prior art.

[0044] Furthermore, the receiving platform is provided with multiple layers, and the multiple layers of the receiving platform are arranged at intervals up and down; the step S103 specifically includes: making the receiving platform on the top layer located on the falling trajectory of the block mineral materials dropped from the belt conveyor; for the receiving platform on the non-top layer, making it located on the falling trajectory of the block mineral materials dropped from the adjacent receiving platform above.

[0045] In actual application, since the transfer station hopper is usually very high, if only one receiving platform is set, the block ore overflowing from the top of the receiving platform is likely to fall on the inner wall of the receiving side below, which will also cause a certain degree of wear on the inner wall. For this reason, multiple layers of receiving platforms can be set to form a stepped structure. The block ore overflowing from the top of each layer of receiving platforms will be transported to the "drawer" of the receiving platform on the next layer, forming a relay transmission method to transport the block ore to the discharge port at the bottom of the transfer station hopper to maximize the protection of the inner wall of the receiving side. Before operation, the landing point of each layer of block ore should be accurately estimated, or the position of the receiving platform should be adjusted during operation to ensure that each layer of receiving platform can accurately receive the block ore from above.

[0046] Furthermore, in one embodiment, the process of transporting the ore is specifically as follows:

[0047] After the block mineral material falls from the tail of the belt conveyor, it falls into the top material receiving platform, and the top material receiving platform is filled with block mineral materials to form a top material accumulation buffer layer. The block mineral material falling from the tail of the belt conveyor continues to fall above the top material accumulation buffer layer and falls along the top surface of the top material accumulation buffer layer.

[0048] For the receiving tables in the middle layers other than the top receiving table and the bottom receiving table, after receiving the block mineral materials dropped from the adjacent receiving table above, the receiving table of the current layer is filled with block mineral materials to form a material accumulation buffer layer of the current layer, and the block mineral materials dropped from the adjacent receiving table above continue to fall above the material accumulation buffer layer of the current layer, and fall along the top surface of the material accumulation buffer layer of the current layer;

[0049] The bottom receiving platform receives the block mineral materials falling from the adjacent receiving platform above, and then fills the bottom receiving platform with the block mineral materials to form a bottom material accumulation buffer layer. Subsequently, the block mineral materials falling from the adjacent receiving platform above continue to fall above the bottom material accumulation buffer layer, and fall along the top surface of the bottom material accumulation buffer layer to the bottom discharge port of the transfer station hopper.

[0050] Furthermore, the mineral material transfer method also includes: when the mineral material to be transferred is powdered mineral material, the material receiving platform is removed from the inner side of the transfer station hopper, and then the powdered mineral material is transported into the transfer station hopper by the belt conveyor, so that the powdered mineral material flows downward along the side wall of the material receiving side, and the powdered mineral material is collected at the discharge port.

[0051] If the receiving platform is fixed on the transfer station hopper, when it is used to transport fine-grained powdered ore, the receiving platform will affect the work efficiency by blocking the material (because the ore particle size of the powdered ore is small, the conveying speed is faster directly along the inclined hopper side wall, and the wear of the receiving side wall is less). Therefore, in this application, it is hoped that the receiving platform is detachable or movable, so that the ore transfer station can have a dual working mode. Therefore, when used to transport powdered ore, the receiving platform should be removed or moved to the outside of the transfer station hopper to clear the obstructions scattered on the material side wall.

[0052] Furthermore, the mineral material transfer method further comprises: setting a horizontal guide rail on the material receiving side wall of the transfer station hopper, and making the front end of the guide rail located inside the transfer station hopper and the rear end of the guide rail located outside the transfer station hopper; setting a guide wheel matching the guide rail on the material receiving platform; and opening a through hole on the material receiving side wall for the material receiving platform to pass through;

[0053] The removing the material receiving platform from the inner side of the transfer station hopper specifically includes: dragging the material receiving platform along the guide rail to the outer side of the transfer station hopper.

[0054] If the receiving platform is removed when conveying different mineral materials, it will inevitably lead to a decrease in work efficiency. For this reason, it is preferred to design the receiving platform as a structure that can be moved horizontally. At this time, by opening a through hole on the side wall of the transfer station hopper, a passage for the receiving platform to enter and exit the hopper can be provided, and the guide rail can effectively support the receiving platform and reduce friction resistance by cooperating with the guide wheel. After the receiving platform is dragged along the guide rail to the outside of the transfer station hopper, the powdered mineral material can be smoothly conveyed.

[0055] Furthermore, the receiving platform can change its position by manually pushing and pulling, but in order to improve efficiency and reduce labor intensity, it is preferred that a driving mechanism is configured on the receiving platform so that the operator can remotely control its forward and backward movement. The driving mechanism can take a variety of forms. For example, the first is a hydraulic cylinder. The cylinder body of the hydraulic cylinder is arranged on the outside of the transfer station hopper. The piston rod end of the hydraulic cylinder is connected to the rear end of the receiving platform. When the piston rod end is extended, the receiving platform moves toward the inside of the transfer station hopper for conveying block mineral materials; when the piston rod end is retracted, the receiving platform moves toward the outside of the transfer station hopper for conveying powdered mineral materials. The second is a motor; the output shaft end of the motor is connected to a gear, and a rack matching the gear is arranged on the receiving platform. When the motor is controlled to rotate, the gear is driven to rotate synchronously, thereby driving the rack to move forward or backward.

[0056] Furthermore, in order to prevent the receiving platform from being unstable due to excessive forward or backward extension, the mineral material transfer method also includes: setting a first limit device (such as a limit block or sensor or other components) at the front end of the guide rail and setting a second limit device at the rear end of the guide rail.

[0057] Furthermore, the mineral material transfer method also includes: setting the side plate of the receiving platform close to the center of the transfer station hopper as an inclined plate, and making the inclination angle of the inclined plate consistent with the inclination angle of the side wall of the receiving side. At this time, when the receiving platform is dragged to the outside of the transfer station hopper, the inclined plate just blocks the through hole and is connected to the side wall of the transfer station hopper to form a plane, which is convenient for the rapid flow of powdered mineral materials. The entire new mineral material transfer station is restored to a structure basically the same as that of an ordinary mineral material transfer station.

[0058] Furthermore, the mineral material transfer method also includes: fixing a plurality of strip-shaped blocking plates on the upper surface of the bottom plate of the receiving platform, and making the length direction of the blocking plates perpendicular to the length direction of the guide rails, so that the blocking plates can better stack and store block mineral materials to form a wear-resistant form of "material hitting material" and prevent the block mineral materials on the bottom layer from sliding and wearing the bottom plate.

[0059] The material conveying method of the present application is described in detail below with a specific embodiment:

[0060] When used to transport block materials 10, a controller (such as a PLC, not shown in the figure) gives an action command to the hydraulic cylinder 5 of each layer, and the piston rod end of the hydraulic cylinder 5 extends outward, thereby pushing the receiving platform 3 with guide wheels installed at the bottom to pass through the through hole along the guide rail 4 and move to the inner side of the transfer station hopper 1 to the position as shown in the figure. Figure 2 The preset position is shown, and then the belt conveyor 2 for conveying mineral materials above the transfer station hopper 1 is started, and the block mineral materials 10 fall from the tail of the belt conveyor 2 and fall into the "drawer" formed by the side panels and the bottom panel of the topmost receiving platform 3. After that, when the block mineral materials 10 in the receiving platform 3 are full, it cannot accommodate more, and the subsequent block mineral materials 10 will overflow from the top of the receiving platform 3 and flow to the receiving platform 3 of the second layer along the trajectory direction shown in the figure. After that, the block mineral materials 10 on the top of the receiving platform 3 of the second layer continue to overflow and flow to the third layer... After repeating the above steps, the block mineral materials 10 on the receiving platform 3 of the bottom layer will be transported to the discharge port at the bottom end of the transfer station hopper 1, and collected or transported by transfer vehicles, etc. In this process, since there is almost no direct contact with the block mineral materials 10, the protection of the inner wall of the receiving side is achieved to the greatest extent. At the same time, as Figure 4As 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 minerals 10 to form a wear-resistant form of "material hitting material" and prevent the block minerals 10 at the bottom layer from sliding to wear the bottom plate. The length direction of the blocking plates 32 is perpendicular to the length direction of the guide rails 4, and the blocking plates 32 can be made of square steel.

[0061] When powdered ore needs to be transported, the controller gives a reverse action command to the hydraulic cylinder 5 of each layer, and the piston rod end of the hydraulic cylinder 5 retracts, thereby pulling the receiving platform 3 along the guide rail 4 through the through hole and moving to the outside of the transfer station hopper 1 to the position as shown in the figure. Figure 3 The preset position shown, then the belt conveyor 2 is started, the powdered mineral material 11 falls from the tail of the belt conveyor 2, directly falls on the side wall of the receiving side, and then flows along the side wall of the receiving side under the action of gravity to the discharge port at the bottom end of the transfer station hopper 1. In this process, since there is no obstruction of the receiving platform 3 (a part of the guide rail 4 remains on the inner side of the transfer station hopper 1, and the width of the guide rail 4 is very small, it will not have a significant impact on the transportation of the powdered mineral material 11), the transportation speed is relatively fast and the efficiency is high, and it also avoids the block mineral material 10 remaining in the previous receiving platform 3 from being confused with the powdered mineral material transported this time. At the same time, since the inclined plate 31 of the receiving platform 3 closest to the center of the transfer station hopper 1 has the same slope as the inner wall of the receiving side, it just blocks the through hole and connects with the side wall of the transfer station hopper 1 to form a plane, which also avoids the powdered mineral material from leaking to the outside of the transfer station hopper 1.

[0062] It should be noted that, since the transfer station hopper 1 is a conical cylindrical structure with a rectangular cross-section that is larger at the top and smaller at the bottom, the cross-section becomes narrower as it goes down. Therefore, of every two adjacent receiving platforms 3, the width of the upper receiving platform 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 the receiving platform 3 with a 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 this layer. At the same time, 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 its 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 an increase in cost. In general, it is recommended that the length dimension of the receiving platform 3 (the dimension along the guide rail 4) is ≤80cm, and the width dimension of the receiving platform 3 (the dimension perpendicular to the guide rail 4) is ≤150cm.

[0063] In addition, in actual application, when the receiving platform 3 is in the working state of conveying the block mineral material 10, as shown in FIG. Figure 2As shown, the front end of the receiving platform 3 should be mostly 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 upper edge of the through hole presses the side plate of the receiving platform 3, which can ensure that it can be balanced during operation; if it is fully extended into the inside of the transfer station hopper 1, it is easy to overturn due to the weight of the block ore 10 plus the weight of the receiving platform 3 itself. In addition, a diagonal support bracket 6 can be set under the part of the guide rail 4 located outside the transfer station hopper 1, so that the guide rail 4 and the platform, the driving mechanism and the receiving platform 3 are all reliably fixed.

[0064] Furthermore, in order to improve the effect and avoid the contact between the block mineral material 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 block mineral material 10 only overflows from the inclined plate 31 side; 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.

[0065] In the above 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 the embodiments of the claimed subject matter require more features than are clearly stated in each claim. On the contrary, as reflected in the appended claims, the invention is in a state of having less than all the features of the disclosed individual embodiments. Therefore, 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.

[0066] The disclosed embodiments are described above to enable any person skilled in the art to implement or use the present invention. Various modifications of these embodiments are obvious to those skilled in the art, and the general principles defined herein may also 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 given herein, but is consistent with the broadest scope of the principles and novel features disclosed in this application.

[0067] The above specific implementation methods further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for transporting mineral materials, characterized in that: include: When the ore to be transferred is a block ore, the block ore is conveyed into the hopper of the transfer station through a belt conveyor arranged on the top of the hopper of the transfer station; Collecting the block mineral material at the bottom discharge port of the transfer station hopper; Before conveying the block ore into the transfer station hopper, the method further includes: arranging a receiving platform to protect the receiving side wall on the inner side of the transfer station hopper, the receiving platform being a drawer-like structure formed by four side panels and a horizontal bottom plate, the receiving platform being connected to the receiving side wall, and the receiving platform being located on the dropping trajectory of the block ore falling from above the receiving platform; During the process of conveying the block mineral materials into the hopper of the transfer station, the block mineral materials are spread in the receiving platform to form a material accumulation buffer layer. After that, the subsequent falling block mineral materials fall above the material accumulation buffer layer and slide downward along the top surface of the material accumulation buffer layer to avoid or reduce the impact of the falling block mineral materials on the side wall of the receiving side.

2. The method for transporting mineral materials according to claim 1, characterized in that: The receiving platform is provided with multiple layers, and the multiple layers of receiving platforms are arranged in intervals up and down; The method of making the receiving platform be located on the falling trajectory of the block material falling from above the receiving platform specifically includes: Make the material receiving platform on the top floor be located on the falling track of the block ore falling from the belt conveyor; For non-top-level receiving platforms, they should be located on the falling trajectory of the block mineral materials dropped from the adjacent receiving platforms above.

3. The method for transporting mineral materials according to claim 2, characterized in that: Also includes: When the mineral material to be transferred is powdered mineral material, the receiving platform is removed from the inner side of the transfer station hopper, and then the powdered mineral material is transported into the transfer station hopper by the belt conveyor, so that the powdered mineral material flows downward along the side wall of the receiving side and is collected at the discharge port.

4. The method for transporting mineral materials according to claim 3, characterized in that: include: A horizontal guide rail is arranged on the side wall of the transfer station hopper on the material receiving side, and the front end of the guide rail is located inside the transfer station hopper and the rear end of the guide rail is located outside the transfer station hopper; A guide wheel matching the guide rail is arranged on the material receiving platform; A through hole for the material receiving platform to pass through is provided on the side wall of the material receiving side; The removing the material receiving platform from the inner side of the transfer station hopper specifically includes: dragging the material receiving platform along the guide rail to the outer side of the transfer station hopper.

5. The method for transporting mineral materials according to claim 4, characterized in that: The material receiving platform is dragged to the outside of the transfer station hopper by a preset driving mechanism.

6. The method for transporting mineral materials according to claim 5, characterized in that: The driving mechanism is a hydraulic cylinder; the cylinder body of the hydraulic cylinder is 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.

7. The method for transporting mineral materials according to claim 5, characterized in that: The driving mechanism is a motor; the output shaft end of the motor is connected with a gear, and the receiving platform is provided with a rack matching the gear.

8. The method for transporting mineral materials according to claim 3, characterized in that: Also includes: The side plate of the material receiving platform close to the center of the transfer station hopper is set as an inclined plate, and the inclination angle of the inclined plate is consistent with the inclination angle of the side wall on the material receiving side.

9. The method for transporting mineral materials according to claim 1, characterized in that: Also includes: 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.

10. The method for transporting mineral materials according to claim 2, characterized in that: include: After the block mineral material falls from the tail of the belt conveyor, it falls into the top material receiving platform, and the top material receiving platform is filled with block mineral materials to form a top material accumulation buffer layer. Subsequently, the block mineral material that continues to fall from the tail of the belt conveyor falls above the top material accumulation buffer layer and falls along the top surface of the top material accumulation buffer layer; For the receiving platforms on other layers that are not the top receiving platform and the bottom receiving platform, after receiving the block mineral materials dropped from the adjacent receiving platform above, the block mineral materials are spread all over the receiving platform on the current layer to form a material accumulation buffer layer on the current layer, and the block mineral materials that continue to drop from the adjacent receiving platform above fall above the material accumulation buffer layer on the current layer and fall along the top surface of the material accumulation buffer layer on the current layer; After the bottom receiving platform receives the block mineral materials falling from the adjacent receiving platform above, the block mineral materials are spread all over the bottom receiving platform to form a bottom material accumulation buffer layer. Subsequently, the block mineral materials that continue to fall from the adjacent receiving platform above fall above the bottom material accumulation buffer layer, and fall along the top surface of the bottom material accumulation buffer layer to the bottom discharge port of the transfer station hopper.

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