Solid waste-based cementitious backfill material preparation with grinding device

Abstract

The utility model belongs to the recycling processing technical field, concretely relates to a kind of solid waste base cementitious backfill material preparation is used powder grinding device, including feeder, the outer wall of the feeder is fixedly connected with feeding hopper, the outside of the feeder is provided with grinding unit, the inner wall of the feeder is fixedly connected with connecting seat, the both ends of the connecting seat are fixedly connected with grading plate, the grading plate is provided with regrinding device, and the regrinding device includes fixed ring.The solid waste base cementitious backfill material preparation is used powder grinding device, and the regrinding device is obtained power by the synchronous rotation of the sliding rod of regrinding device with the output shaft of grinding unit, simplifies device structure, reduces equipment cost and energy consumption, can recycle and send back feeding hopper in time to the coarse granular material screened by grading plate, realizes the circulating grinding of material, improves grinding efficiency, reduces the accumulation of coarse granular material, guarantees the continuity and stability of grinding process.

Description

Technical Field

[0001] This utility model relates to the field of recycling and processing technology, specifically to a grinding device for preparing solid waste-based cementitious backfill materials. Background Technology

[0002] Solid waste-based cementitious backfill material is a hydraulic cementitious material made from granulated blast furnace slag, steel slag, industrial by-product gypsum, etc., as the main raw materials and is produced by fine grinding. It can be used to prepare mortar, concrete, composite soil, block materials, and road pavement base courses.

[0003] During the mining process, a large amount of tailings and waste rock are generated. By using a grinding device to grind these solid wastes, solid waste-based cementitious backfill materials can be prepared for backfilling of mining goaf areas. This not only solves the problem of coarse particles, but also, in view of this, we propose a grinding device for preparing solid waste-based cementitious backfill materials. Utility Model Content

[0004] The main objective of this invention is to provide a grinding device for preparing solid waste-based cementitious backfill materials, which can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention proposes a grinding device for preparing solid waste-based cementitious backfill materials, comprising a feeder, a feed hopper fixedly connected to the outer wall of the feeder, a grinding unit disposed outside the feeder, a connecting seat fixedly connected to the inner wall of the feeder, grading plates fixedly connected to both ends of the connecting seat, a re-grinding device disposed on the grading plate, and a knocking collection device disposed on the re-grinding device, the re-grinding device comprising: A fixed ring is provided on the grinding unit, and a sliding rod is slidably connected to the fixed ring; A fixed block, wherein the sliding rod is fixedly connected to the fixed block, the fixed block is slidably connected to the arc-shaped seat, and the arc-shaped seat is fixedly connected to the feeder through a connecting plate; The upper push plate is detachably connected to the fixed block. The feeder is fixedly connected to the recycling seat. The outer wall of the recycling seat is fixedly connected to the motor. The output shaft of the motor passes through the recycling seat and is fixedly connected to the auger.

[0006] Preferably, the output shaft of the grinding unit is fixedly connected to the grinding body, and a fixing ring is fixedly connected to the output shaft. The output shaft of the grinding unit rotates under power drive, driving the grinding body to rotate together. After the solid waste material enters the grinding area, the grinding body generates impact, squeezing and friction forces on the material during the rotation process, gradually breaking and grinding larger pieces of solid waste material into finer particles.

[0007] Preferably, the knocking collection device includes a lower cleaning plate, and the fixed block is detachably connected to the lower cleaning plate. When the fixed block drives the upper pushing plate to move to push coarse particles, the upper pushing plate and the lower cleaning plate on the fixed block slide down synchronously.

[0008] Preferably, a positioning block is fixedly connected to the lower surface of the grading plate, and a sliding column is slidably connected to the positioning block. During the downward movement of the lower cleaning plate, the surface of the grading plate is cleaned, and the material attached to the grading plate is scraped off. While ensuring the unobstructed flow of the grading plate screen holes, the lowest point of the sliding column squeezes the sliding column.

[0009] Preferably, one end of the sliding column is fixedly connected to a return spring, and the other end of the sliding column is slidably connected to the positioning block two. When squeezed, the sliding column will slide between the positioning block one and the positioning block two, which will knock on the connecting seat and further cause the stubborn material attached to the grading plate to fall off.

[0010] Preferably, the sliding column is located below the lower cleaning plate.

[0011] This invention provides a grinding device for preparing solid waste-based cementitious backfill materials. It has the following beneficial effects: (1) The grinding device for preparing solid waste-based cementitious backfill material has a re-grinding device. The sliding rod of the re-grinding device obtains power by rotating synchronously with the output shaft of the grinding unit, which simplifies the device structure, reduces equipment cost and energy consumption, and can promptly recover the coarse particles screened by the grading plate and send them back to the feed hopper, realize the recycling grinding of materials, improve grinding efficiency, reduce the accumulation of coarse particles, ensure the continuity and stability of the grinding process, and improve the safety and resource utilization of the mine.

[0012] (2) The grinding device for preparing solid waste-based cementitious backfill material has a set knocking collection device and a lower cleaning plate that can physically clean the grading plate, scrape off the material attached to the surface, and, together with the knocking action of the sliding column, can effectively remove stubborn attached material, ensure the normal operation of the grading plate, improve grading efficiency and accuracy, reduce manual intervention, and improve the automation level and working efficiency of the grinding device. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 4 This is a partial structural diagram of the re-grinding device of this utility model; Figure 5 For practical purposes Figure 4 Schematic diagram of structure A in the middle; Figure 6 This is a schematic diagram of the re-grinding device of this utility model; Figure 7 For practical purposes Figure 6 Schematic diagram of structure B in the middle; Figure 8 This is a cross-sectional view of the recycling seat of this utility model.

[0015] Explanation of icon numbers: 1. Feeder; 2. Feed hopper; 3. Grinding unit; 301. Output shaft; 302. Grinding body; 4. Connecting seat; 5. Grading plate; 6. Re-grinding device; 61. Fixing ring; 62. Sliding rod; 63. Fixing block; 64. Arc-shaped seat; 65. Connecting plate; 66. Upper push plate; 67. Recycling seat; 68. Motor; 69. Screwdriver; 7. Impact collection device; 71. Lower cleaning plate; 72. Positioning block one; 73. Sliding column; 74. Return spring; 75. Positioning block two.

[0016] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-8This utility model proposes a grinding device for preparing solid waste-based cementitious backfill material, including a feeder 1, a feed hopper 2 fixedly connected to the outer wall of the feeder 1, the feed hopper 2 being used to store solid waste material to be ground, a grinding unit 3 being provided outside the feeder 1, the output shaft 301 of the grinding unit 3 being fixedly connected to the grinding body 302, and a fixing ring 61 being fixedly connected to the output shaft 301, the output shaft 301 of the grinding unit 3 rotating under power drive, driving the grinding body 302 to rotate together, after the solid waste material enters the grinding area, the grinding body 302 generates impact, squeezing and friction forces on the material during the rotation process, gradually crushing and grinding larger pieces of solid waste material into finer particles, a connecting seat 4 being fixedly connected to the inner wall of the feeder 1, and a grading plate 5 being fixedly connected to both ends of the connecting seat 4, the grading plate 5 being able to screen according to the size, weight and other characteristics of the material particles. Larger particles that do not meet the requirements cannot pass smoothly through the grading plate 5 and will be blocked on the grading plate 5; while finer particles that meet the requirements can pass through the grading plate 5 and enter the subsequent solid waste-based cementitious backfill material preparation process as qualified grinding products. The grading plate 5 is equipped with a re-grinding device 6, and the re-grinding device 6 is equipped with a knocking collection device 7. The re-grinding device 6 includes a fixing ring 61.

[0019] In this embodiment of the invention, in order to achieve material recycling and grinding, thereby improving mine safety and resource utilization, specifically, a fixed ring 61 is provided on the grinding unit 3, and a sliding rod 62 is slidably connected to the fixed ring 61. The operation of the output shaft 301 of the grinding unit 3 synchronously drives the rotation of the sliding rod 62. The sliding rod 62 is fixedly connected to a fixed block 63, which is slidably connected to an arc-shaped seat 64. The arc-shaped seat 64 is fixedly connected to the feeder 1 through a connecting plate 65. Under the limitation of the arc-shaped seat 64, the fixed block 63 on 2 slides stably along the direction of the arc-shaped seat 64. The fixed block 63 is detachably connected to the upper push plate 66. The feeder 1 is fixedly connected to the recovery seat 67. The outer wall of the recovery seat 67 is fixedly connected to the motor 68. The output shaft of the motor 68 passes through the recovery seat 67 and is fixedly connected to the auger 69. After the coarse particles are screened out by the grading plate 5, the upper push plate 66 pushes them upward to the recovery seat 67. The motor 68 drives the auger 69 to work and return to the feeder 2 to continue grinding.

[0020] Furthermore, to reduce manual intervention and improve grading efficiency and accuracy, the tapping collection device 7 specifically includes a lower cleaning plate 71. A fixed block 63 is detachably connected to the lower cleaning plate 71. When the fixed block 63 drives the upper pushing plate 66 to move and push coarse particles, the upper pushing plate 66 and the lower cleaning plate 71 on the fixed block 63 slide down synchronously. A positioning block 72 is fixedly connected to the lower surface of the grading plate 5, and a sliding column 73 is slidably connected to the positioning block 72. The sliding column 73 is located below the lower cleaning plate 71. During the downward movement of plate 71, the surface of grading plate 5 is cleaned, and the material attached to grading plate 5 is scraped off, ensuring the unobstructed flow of the sieve holes of grading plate 5. At the same time, the lowest point of the sliding column presses the sliding column 73. One end of the sliding column 73 is fixedly connected to a return spring 74, and the other end of the sliding column 73 is slidably connected to the second positioning block 75. When pressed, the sliding column 73 will slide between the first positioning block 72 and the second positioning block 75, which will knock on the connecting seat 4, further causing the stubborn material attached to grading plate 5 to fall off.

[0021] In this invention, during use, the output shaft 301 of the grinding unit 3 rotates under power drive, causing the grinding body 302 to rotate as well. After the solid waste material enters the grinding area through the feed hopper 2, the grinding body 302 generates impact, compression, and friction forces on the material during rotation, gradually crushing and grinding larger pieces of solid waste material into finer particles. The operation of the output shaft 301 of the grinding unit 3 synchronously drives the rotation of the sliding rod 62. The fixed block 63 on the sliding rod 62 slides stably along the direction of the arc-shaped seat 64 under the limitation of the arc-shaped seat 64. After the coarse particles are screened out by the grading plate 5, the upper push plate 66 pushes them upward to the recovery seat 67. The motor 68 drives... When the auger 69 is working, it returns to the feed hopper 2 to continue grinding. When the fixed block 63 drives the upper push plate 66 to move to push coarse particles, the upper push plate 66 and the lower cleaning plate 71 on the fixed block 63 slide down synchronously. During the descent, the lower cleaning plate 71 cleans the surface of the grading plate 5, scraping off the material attached to the grading plate 5. While ensuring the unobstructed flow of the sieve holes of the grading plate 5, the lowest point of the sliding column squeezes the sliding column 73. When squeezed, the sliding column 73 slides between the positioning block 1 72 and the positioning block 2 75, which acts as a knocking action on the connecting seat 4, further causing the stubborn material attached to the grading plate 5 to fall off, effectively removing the stubborn material and ensuring the normal operation of the grading plate 5.

[0022] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A grinding device for preparing solid waste-based cementitious backfill material, comprising a feeder (1), characterized in that: A feeding hopper (2) is fixedly connected to the outer wall of the feeder (1), a grinding unit (3) is provided on the outside of the feeder (1), a connecting seat (4) is fixedly connected to the inner wall of the feeder (1), a grading plate (5) is fixedly connected to both ends of the connecting seat (4), a re-grinding device (6) is provided on the grading plate (5), a knocking collection device (7) is provided on the re-grinding device (6), and the re-grinding device (6) includes: A fixed ring (61) is provided on the grinding unit (3), and a sliding rod (62) is slidably connected to the fixed ring (61). Fixed block (63), the sliding rod (62) is fixedly connected to the fixed block (63), the fixed block (63) is slidably connected to the arc-shaped seat (64), and the arc-shaped seat (64) is fixedly connected to the feeder (1) through the connecting plate (65); The upper push plate (66) is detachably connected to the fixed block (63). The feeder (1) is fixedly connected to the recycling seat (67). The outer wall of the recycling seat (67) is fixedly connected to the motor (68). The output shaft of the motor (68) passes through the recycling seat (67) and is fixedly connected to the auger (69).

2. The grinding device for preparing solid waste-based cementitious backfill material according to claim 1, characterized in that: The output shaft (301) of the grinding unit (3) is fixedly connected to the grinding body (302), and a retaining ring (61) is fixedly connected to the output shaft (301).

3. The grinding device for preparing solid waste-based cementitious backfill material according to claim 1, characterized in that: The tapping collection device (7) includes a lower cleaning plate (71), and the fixing block (63) is detachably connected to the lower cleaning plate (71).

4. The grinding device for preparing solid waste-based cementitious backfill material according to claim 1, characterized in that: The lower surface of the grading plate (5) is fixedly connected to a positioning block (72), and the positioning block (72) is slidably connected to a sliding column (73).

5. The grinding device for preparing solid waste-based cementitious backfill material according to claim 4, characterized in that: One end of the sliding column (73) is fixedly connected to a return spring (74), and the other end of the sliding column (73) is slidably connected to the positioning block two (75).

6. The grinding device for preparing solid waste-based cementitious backfill material according to claim 5, characterized in that: The sliding column (73) is located below the lower cleaning plate (71).

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