Solid waste ball-milling device with self-vibration sieving and grading functions
Through the design of the solid waste ball mill with a sieve grading, it is difficult to achieve the problem of solid waste granules and continuous operations, and realize the integration of solid waste particles and continuous operations. Cost and improve production efficiency.
Patent Information
- Application Number
- CN202420755354.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-04-12
AI Technical Summary
Existing ball mills are difficult to achieve step-by-step discharge and continuous operation of solid waste particles. The grinding process is cumbersome and cannot meet the fineness requirements of solid waste-based gelling materials.
Design a self-vibrating sieving and classifying solid waste ball mill device, which includes a ball mill bin and a grading and screening bin. It uses components such as lifting components, grading transmission pipes, screens, vibrators, and arc-shaped paddles to achieve solid waste ball milling, Screening and particle classification integrated.
The automated graded and sufficient ball milling control of solid waste particles has been realized, reducing production costs, and improving the production efficiency of preparing ultra -fine solid waste gel materials.
Smart Images
Figure CN222385010U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solid waste gelling material preparation, in particular to a solid waste ball milling device capable of self-vibration screening and grading. Background Art
[0002] Solid waste-based cementitious materials are a type of hydraulic cementitious materials that use industrial solid waste as raw materials and are prepared through processes such as grinding, proportioning, and excitation. They have the advantages of low carbon, environmental protection, and energy saving, and can be widely used in construction, roads, and other fields. The raw materials of solid waste-based cementitious materials mainly include steel slag, blast furnace slag, fly ash, tailings, desulfurization ash, industrial by-product gypsum, red mud, etc. The particle size, shape, chemical composition, etc. of these raw materials are different, and they often need to be screened, graded, and other processes to meet the fineness requirements of solid waste-based cementitious materials.
[0003] Ball mill is one of the most widely used high-fine grinding machines in production. Traditional ball mills cannot achieve continuous operation and graded discharge of solid waste particles. The materials after ball milling need to be further screened manually, and the remaining solid waste particles need to be loaded into the cylinder and re-milled, which is a cumbersome process.
[0004] Existing ball mills are difficult to discharge solid waste particles step by step, and cannot achieve continuous operation. The grinding process is relatively complicated. Therefore, it is necessary to design a device with a high degree of automation that can discharge solid waste particles in stages and fully control ball milling. Summary of the invention
[0005] The purpose of the utility model is to provide a solid waste ball milling device with self-vibration screening and classification to solve the problems in the prior art. The utility model realizes the integration of solid waste ball milling, active screening and particle classification, and reduces the production cost.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A self-vibrating screening and grading solid waste ball milling device comprises a box frame, characterized in that: a material lifting assembly is provided on one side of the box frame, a material feed port is provided on the top of the box frame, and a material discharge port is provided on the bottom; the box frame is divided into a ball milling bin and a grading screening bin from top to bottom; a plurality of grading transmission pipes are provided on one side of the grading screening bin, and each grading transmission pipe is respectively connected to the material lifting assembly; a transmission pipe is provided on the top of the material lifting assembly and is connected to the ball milling bin; a plurality of screens are evenly distributed from top to bottom in the grading screening bin, and one side of each screen corresponds to a grading transmission pipe; the material lifting assembly is powered externally.
[0008] Preferably, the raw material room is located above the ball mill bin, a ball mill cylinder is installed below the ball mill bin, a guide plate is installed in the raw material room and guides the ball mill feed port of the ball mill cylinder; steel balls are installed in the ball mill cylinder, and movable openings are provided on the upper and lower sides of the ball mill cylinder, which are controlled by switches, and a filter is provided on the inner bottom. The steel balls are separated from the materials by the filter, and solid waste with large particle sizes cannot pass through the filter, so that the solid waste particles are preliminarily screened to improve the efficiency of subsequent grading and screening. Since the upper and lower sides of the ball mill cylinder are provided with controllable movable openings, the transmission of solid waste from the raw material room to the ball mill cylinder and the time of solid waste ball milling can be controlled.
[0009] Preferably, the filter mesh aperture is smaller than the steel ball diameter.
[0010] Preferably, a circular hole is provided at the center of each screen, a rotating shaft passes through each circular hole of the screen and is connected to each screen through a rotating bearing, and the rotating shaft is powered by an external source.
[0011] Preferably, a number of arc-shaped paddles and vibrators are evenly distributed in the grading screening bin, and each vibrator is fixed to the inner wall of the grading screening bin; the bottom surface of each screen is placed on a number of vibrators on the same horizontal plane, and each arc-shaped paddle is fixed on the rotating shaft and evenly distributed above each screen. The vibrators are evenly distributed on the lower side of the screen and fixed to the inner wall of the grading screening bin, which can well support the screen and prevent the screen from being deformed due to excessive weight of the material. Vibrators are evenly distributed on the lower part of the screen to drive the screen to vibrate, so that the solid waste powder is screened more fully, and the particles can be effectively prevented from being blocked in the screen holes. The center of the screen is connected to the rotating shaft through a rotating bearing. When the rotating shaft drives the paddle to rotate, it will not drive the screen to rotate. Several arc-shaped paddles are located above the screen and fixed on the rotating shaft, which play a guiding role for the solid waste particles, and the rotating shaft can drive the arc-shaped paddles to rotate. Furthermore, when the rotating shaft rotates counterclockwise, the arc-shaped paddle guides the solid waste particles away from the rotating shaft, which is more conducive to the solid waste particles flowing to the grading transmission pipeline and the discharge port; when the rotating shaft rotates clockwise, the arc-shaped paddle guides the solid waste particles toward the rotating shaft, which is more conducive to the solid waste particles staying on the screen and being fully screened.
[0012] Preferably, the aperture of the screen decreases gradually from top to bottom, and the screen can be replaced with different mesh sizes as needed.
[0013] Preferably, a bottom plate is installed at the bottom of the grading and screening bin, a circular hole is provided in the center of the bottom plate, the rotating shaft passes through the circular hole of the bottom plate and is connected to the bottom plate through a rotating bearing, and the bottom plate corresponds to the discharge port.
[0014] Preferably, a grading baffle is provided at the connection between the grading transmission pipeline and the grading screening bin, and each grading baffle is controlled by a timing switch. The grading baffle is in a closed state when the solid waste particles are screened to prevent fine particles from flowing into the grading transmission pipeline.
[0015] Preferably, a graded discharge port is provided in the graded transmission pipeline, and a discharge baffle is provided between the graded discharge port and the graded transmission pipeline, and the discharge baffle is controlled by a valve. The graded discharge port faces downward, and the connection with the graded transmission pipeline is located on the lower side of the graded transmission pipeline. This structure is more conducive to discharge. Thereby, sufficient screening and rapid discharge control of solid waste powder are achieved. When the valve is opened, the discharge port is opened, and solid waste powder that meets the requirements is collected; when the valve is closed, all graded powders flow to the lifting assembly and continue to be fully ball-milled. By opening different valves, solid waste powders of different particle sizes can be obtained, thereby achieving graded discharge control of solid waste powders. Furthermore, the large-particle powder that comes out first reduces the amount of continued ball milling, reducing the grinding pressure and production cost of the equipment.
[0016] Preferably, the rotating shaft has two rotation directions. The rotation direction and speed of the rotating shaft can be controlled. When the rotating shaft rotates counterclockwise, the arc-shaped paddle guides the solid waste particles away from the rotating shaft, which is more conducive to the solid waste particles flowing to the grading transmission pipeline and the discharge port; when the rotating shaft rotates clockwise, the arc-shaped paddle guides the solid waste particles toward the rotating shaft, which is more conducive to the solid waste particles staying on the screen and being fully screened.
[0017] The utility model can directly obtain solid waste particles of ideal particle size through the grading discharge port. After being ball-milled in the ball mill bin, the solid waste particles fall into the grading screening bin below the ball mill cylinder. After being fully vibrated and screened, they are transmitted to the grading transmission pipeline through the arc-shaped paddles. By controlling the discharge port switch on the lower side of the grading transmission pipeline, the grading acquisition of solid waste powder is achieved, and the continuous and sufficient grinding of solid waste particles is achieved through the lifting component.
[0018] Compared with the prior art, the beneficial effects of the utility model are:
[0019] 1. The utility model realizes the integration of solid waste ball milling, screening and particle classification and reduces production costs by setting a screen of any size in the ball mill.
[0020] 2. The utility model is equipped with a unique graded transmission pipeline to realize the full ball milling and graded discharge control of solid waste. After the graded discharge, the pressure of the full ball milling on the equipment is greatly reduced, making the full ball milling efficiency higher and improving the production efficiency of preparing ultrafine solid waste gelling materials.
[0021] 3. The utility model realizes sufficient vibration screening and rapid discharge control of solid waste particles by arranging a vibrator, a rotating shaft, an arc-shaped paddle and a grading baffle on the screen, so that the solid waste powder can be screened more fully, is not easy to be blocked, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a cross-sectional schematic diagram of the utility model;
[0023] Figure 2 This is a schematic diagram of the structure of the ball mill cylinder in the utility model;
[0024] Figure 3 It is a schematic diagram of the structure of the grading screening bin and the grading transmission pipeline of the utility model.
[0025] In the figure: 1. Box frame; 2. Feed inlet; 3. Raw material room; 4. Guide plate; 5. Ball mill cylinder; 501. Ball mill feed inlet; 502. Ball mill discharge port; 503. Filter; 504. Steel ball; 6. Rotating shaft; 7. Screen; 8. Chassis; 9. Paddle; 10. Rotating bearing; 11. Vibrator; 12. Discharge port; 13. Transmission pipeline; 14. Valve; 15. Classification discharge port; 16. Classification transmission pipeline; 17. Lifting assembly; 18. Classification baffle; 19. Discharge baffle. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. All components of the present invention are existing structures and are directly purchased.
[0028] like Figures 1 to 3As shown, the specific scheme of the embodiment is as follows: a self-vibrating screening and grading solid waste ball milling device comprises a box frame 1, a material lifting assembly 17 is provided on the right side of the box frame 1, a feed port 2 is provided on the top, and a discharge port 12 is provided on the bottom; the box frame is divided into a ball milling bin and a grading screening bin from top to bottom; a plurality of grading transmission pipes 16 are provided on the right side of the grading screening bin, and each grading transmission pipe 16 is respectively connected to the material lifting assembly 17; a transmission pipe 13 is provided on the top of the material lifting assembly 17 and is connected to the ball milling bin; a bottom plate 8 is installed at the bottom of the grading screening bin and corresponds to the discharge port 12; a plurality of screens 7, arc-shaped paddles 9 and vibrators 11 are evenly distributed from top to bottom in the grading screening bin, and each vibrator 11 is fixed to the inner wall of the grading screening bin; the bottom surface of each screen 7 is placed On several vibrators 11 on the same horizontal plane, a circular hole is provided in the center of each screen 7, and the rotating shaft 6 passes through the bottom plate 8 and the circular hole of each screen 7 and is connected to the bottom plate 8 and each screen 7 through the rotating bearing 10; each arc-shaped paddle 9 is fixed on the rotating shaft 6 and is evenly distributed above each screen 7; one side of each screen 7 corresponds to a graded transmission pipeline 16, and a graded baffle 18 is installed at the connection between each graded transmission pipeline 16 and the graded screening bin, and each graded baffle 18 is controlled by a timing switch; each graded transmission pipeline 16 is provided with a graded discharge port 15, and a discharge baffle 19 is provided between each graded discharge port 15 and the corresponding graded transmission pipeline 16, and each discharge baffle 19 is controlled by a valve 14; the rotating shaft 6 and the lifting assembly 17 are respectively powered externally.
[0029] Specifically, there is a raw material room 3 above the ball mill bin, and a ball mill cylinder 5 is installed below the ball mill bin. A guide plate 4 is installed in the raw material room 3 and guides the ball mill feed port 501 of the ball mill cylinder 5. The ball mill cylinder 5 is equipped with steel balls 504 for promoting ball milling. A filter screen 503 is provided on the bottom side of the ball mill cylinder 5 to prevent the steel balls and larger solid waste particles from leaking down. A ball mill feed port 501 is provided on the upper side of the ball mill cylinder 5, and a ball mill discharge port 502 is provided on the lower side. The ball mill feed port 501 and the ball mill discharge port 502 are movable openings and are controlled by switches. When the ball mill cylinder 5 stops rotating, the ball mill feed port 501 is just aligned with the lower side of the guide plate 4. At this time, the switch of the ball mill discharge port 502 is opened, so that the solid waste after ball milling can fall onto the screen 7 for the next screening and grading step. Then the switch of the ball mill discharge port 502 is closed, and the switch of the ball mill feed port 501 is opened, so that the raw materials can enter the ball mill cylinder 5 for ball milling.
[0030] Specifically, the ball mill outlet 502 is controlled by a switch, which can control the ball milling time of the solid waste particles, so as to facilitate ball milling of solid waste particles with smaller particle sizes.
[0031] Specifically, the filter screen 503 is closely attached to the lower inner part of the ball mill cylinder 5 , so that the inner surface of the ball mill is similar to the side surface of a cylinder, which is more conducive to the rolling of the steel balls 504 in the ball mill cylinder 5 .
[0032] Specifically, the vibrator 11 drives the screen 7 to vibrate together, thereby increasing the screening efficiency of the solid waste powder. The rotating shaft 6 drives the arc-shaped paddle 9 to rotate together, and the screen 7 is connected to the rotating shaft 6 through the rotating bearing 10 to prevent the screen 7 from rotating together with the rotating shaft 6.
[0033] Specifically, the aperture sizes of different screens in the vertical direction gradually decrease from top to bottom.
[0034] Specifically, the rotation direction and speed of the rotating shaft 6 can be controlled. When the rotating shaft rotates counterclockwise, the arc-shaped paddle 9 guides the solid waste particles away from the rotating shaft, which is more conducive to the solid waste particles flowing to the grading transmission pipeline 16 and the discharge port 12; when the rotating shaft rotates clockwise, the arc-shaped paddle guides the solid waste particles toward the rotating shaft 6, which is more conducive to the solid waste particles staying on the screen 7 and being fully screened.
[0035] Specifically, when the solid waste particles are screened, each of the grading baffles 18 is in a closed state to prevent fine particles from flowing into the grading transmission pipe 16, and the rotating shaft 6 rotates clockwise at this time; after the screening is completed, each of the grading baffles 18 is opened, and the rotating shaft 6 rotates counterclockwise at this time, and the solid waste particles are quickly transferred into each grading transmission pipe 16.
[0036] Specifically, the operating principle of the grading and screening bin is as follows:
[0037] The ball-milled solid waste powder passes through the filter 503 and falls onto the topmost screen 7 of the grading and screening bin. All vibrators 11 drive the screens 7 to vibrate. At this time, all grading baffles 18 are closed, and the rotating shaft 6 drives all arc-shaped paddles 9 to rotate clockwise. The solid waste powder is fully screened, and the finer-sized solid waste powder falls into the next-level screen step by step. After the screening is completed, all grading baffles 18 are opened, and the rotating shaft 6 rotates counterclockwise. The solid waste powder on each screen 7 is quickly discharged into the corresponding grading transmission pipeline 16; the solid waste powder on the bottom plate 8 is discharged through the discharge port 12.
[0038] Specifically, the operating principles of each graded transmission pipeline and material lifting component are as follows:
[0039] After the solid waste powder is transferred to each graded transmission pipeline 16, if each valve 14 is closed, the solid waste powder will be transferred to the material lifting assembly 17. With the movement of the material lifting assembly 17, the solid waste powder is transferred to the raw material room 3 through the transmission pipeline 13 to wait for further ball milling. If the valve 14 is opened, the solid waste powder will flow out of the graded discharge port 15 first and be collected. At this time, the solid waste powder obtained is larger than the corresponding sieve aperture and smaller than the previous sieve aperture.
[0040] Specifically, all valves 14 can be opened at the same time or separately. When opened at the same time, solid waste powders of different particle sizes can be collected at different grading outlets 15. When all valves 14 are closed, except for the powder that falls on the bottom plate 8, other powders are transferred to the lifting assembly 17 through each grading transmission pipe 16, and continue to be transferred to the raw material bin to wait for re-milling until all powders are ground to the minimum particle size. When the valve 14 is partially opened, solid waste powders of the corresponding particle size range can be obtained at the corresponding grading outlet 15. Furthermore, the collected powder reduces the total amount of powder in the machine, reduces the pressure of the machine operation, and is more conducive to the full milling of the remaining powder.
[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A self-vibrating, screening and grading solid waste ball milling device, comprising a box frame, characterized in that: A material lifting assembly is provided on one side of the box frame, a material feed port is provided on the top of the box frame, and a material discharge port is provided on the bottom; the box frame is divided into a ball mill bin and a grading screening bin from top to bottom; a plurality of grading transmission pipelines are provided on one side of the grading screening bin, and each grading transmission pipeline is respectively connected to the material lifting assembly; a transmission pipeline is provided on the top of the material lifting assembly and is connected to the ball mill bin; a plurality of screens are evenly distributed from top to bottom in the grading screening bin, and one side of each screen corresponds to a grading transmission pipeline; the material lifting assembly is powered externally.
2. The self-vibrating screening and classification solid waste ball milling device according to claim 1, characterized in that: The raw material room is located above the ball mill bin, a ball mill cylinder is installed below the ball mill bin, a material guide plate is installed in the raw material room and guides the ball mill feed port of the ball mill cylinder; steel balls are installed in the ball mill cylinder, movable openings are provided on the upper and lower sides of the ball mill cylinder and are controlled by switches, and a filter is provided on the inner bottom side.
3. The self-vibrating screening and grading solid waste ball milling device according to claim 1, characterized in that: A circular hole is arranged at the center of each screen, and a rotating shaft passes through each circular hole of the screen and is connected to each screen through a rotating bearing, and the rotating shaft is powered by an external source.
4. The self-vibrating screening and classification solid waste ball milling device according to claim 3, characterized in that: A number of arc-shaped paddles and vibrators are evenly distributed in the grading and screening bin, and each vibrator is fixed to the inner wall of the grading and screening bin; the bottom surface of each screen is placed on a number of vibrators on the same horizontal plane, and each arc-shaped paddle is fixed on a rotating shaft and evenly distributed above each screen.
5. The self-vibrating screening and classification solid waste ball milling device according to claim 3, characterized in that: A bottom plate is installed at the bottom of the grading and screening bin, a circular hole is arranged at the center of the bottom plate, a rotating shaft passes through the circular hole of the bottom plate and is connected to the bottom plate through a rotating bearing, and the bottom plate corresponds to the discharge port.
6. The self-vibrating screening and classification solid waste ball milling device according to claim 1, characterized in that: A grading baffle is provided at the connection between the grading transmission pipeline and the grading screening bin, and each grading baffle is controlled by a timing switch.
7. The self-vibrating screening and classification solid waste ball milling device according to claim 1, characterized in that: A grading discharge port is arranged in the grading transmission pipeline, a discharge baffle is arranged between the grading discharge port and the grading transmission pipeline, and the discharge baffle is controlled by a valve.
8. The self-vibrating screening and classification solid waste ball milling device according to claim 1, characterized in that The aperture of the screen decreases gradually from top to bottom.
9. The self-vibrating screening and classification solid waste ball milling device according to claim 2, characterized in that: The filter mesh aperture is smaller than the steel ball diameter.
10. A solid waste ball milling device for self-vibration screening and classification according to claim 3, 4 or 5, characterized in that: The rotating shaft has two directions of rotation.