Industrial solid waste superfine grinding equipment

Abstract

This invention discloses an ultrafine grinding equipment for industrial solid waste, relating to the field of industrial solid waste treatment technology. The equipment includes a feeding cylinder, a primary grinding mechanism, a feeding unit, a re-grinding mechanism, an intermediate cylinder, and an exhaust fan. The feeding cylinder, primary grinding mechanism, re-grinding mechanism, intermediate cylinder, and exhaust fan are all connected by pipelines. The crushed industrial solid waste is fed into the feeding cylinder, and after feeding, it is transferred to the primary grinding mechanism using air-assisted propulsion. Through the design of the primary grinding mechanism and re-grinding mechanism, the entire system operates under negative pressure, with the intermediate cylinder continuously maintaining negative pressure. This allows dust generated during the grinding process to be promptly extracted and collected, effectively avoiding the problem of large amounts of dust escaping during the crushing process in traditional equipment and reducing pollution to the surrounding air environment.

Description

Technical Field

[0001] This invention relates to the field of industrial solid waste treatment technology, specifically to an ultrafine grinding equipment for industrial solid waste. Background Technology

[0002] Industrial solid waste refers to solid waste generated during industrial production activities, including waste rock from mining, smelting slag, fly ash, furnace slag, coal gangue, and tailings, as well as sludge, spent catalysts, and spent adsorbents from industries such as chemicals and pharmaceuticals. If these wastes are not properly treated, they may pollute the environment; however, proper recycling and utilization can transform them into renewable resources, achieving resource recycling and sustainable development.

[0003] By grinding and reusing, fly ash and slag can be made into new environmentally friendly building materials, such as fly ash bricks and fly ash concrete. These materials have good performance and the production process is relatively environmentally friendly, with less damage to the ecological environment. This helps to promote the green transformation and sustainable development of the construction industry. However, traditional processes usually use crushers, ball mills or mechanical impact mills for processing, which are basically mechanical grinding, which easily causes a large amount of dust to escape and noise pollution. In view of this situation, this invention proposes a new solution. Summary of the Invention

[0004] The purpose of this invention is to provide an ultrafine grinding equipment for industrial solid waste to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an industrial solid waste ultrafine grinding equipment, comprising:

[0006] The components include a feeding cylinder, a primary grinding mechanism, a feeding unit, a secondary grinding mechanism, an intermediate cylinder, and an exhaust fan.

[0007] The feeding cylinder, primary grinding mechanism, secondary grinding mechanism, intermediate cylinder and exhaust fan are all connected by pipelines. The crushed industrial solid waste is fed from the feeding cylinder, and after feeding is completed, the industrial solid waste is transferred to the primary grinding mechanism by air source propulsion.

[0008] The primary grinding unit is connected to the secondary grinding unit and the intermediate cylinder by pipelines. A portion of the industrial solid waste is processed by the primary grinding unit under negative pressure and then enters the intermediate cylinder, while the other portion of the industrial solid waste enters the secondary grinding unit through the feeding device for further grinding.

[0009] The system employs a two-stage grinding mechanism. First, the primary grinding mechanism utilizes airflow and the high-speed rotation of the grinding paddle to pulverize industrial solid waste. Then, the secondary grinding mechanism uses a high-speed grinding belt for fine pulverization. This staged grinding mode enables ultra-fine pulverization of industrial solid waste, meeting the needs of various application scenarios with different particle size requirements. All components are tightly connected by pipelines to form a complete closed-loop grinding system, facilitating automated control and monitoring. For example, the continuous operation of the exhaust fan provides stable negative pressure for the entire system, ensuring smooth material transport and dust collection. This stable operating environment helps improve production efficiency and product quality stability.

[0010] Further, the ultrafine grinding equipment also includes frame one, frame two, and frame three. Frame two is installed on top of frame one, the feeding cylinder is installed at frame one, frame three is installed on one side of frame one, and the intermediate cylinder is installed at frame three. The preliminary grinding mechanism and the re-grinding mechanism are both located between the intermediate cylinder and the feeding cylinder.

[0011] Further, the preliminary grinding mechanism includes a ring hoop, in which two chucks are fixed, and the two chucks are fixed by an outer ring hoop. A cavity is formed between the two chucks, and a ring bearing is sandwiched between the two chucks. The grinding paddle is fixed to the inner ring of the ring bearing.

[0012] Further, a slanted insertion tube is fixed on the upper chuck, and an air source is installed on the first frame. The output end of the air source is fixed to the end of the slanted insertion tube away from the chuck. A pump tube is fixed at the bottom of the upper cylinder, and the other end of the pump tube is connected to the slanted insertion tube. A booster tube is fixed on the lower chuck, and an air source is also installed on the first frame. The output end of the air source is fixed to the other end of the booster tube. The end of the booster tube is also inclined, and the inclination direction is the same as that of the slanted insertion tube.

[0013] Further, the re-grinding mechanism includes an outer housing connected to a feeding component. The feeding component includes an outer tube, one end of which is connected to a chuck located below. The other end of the outer tube is bent and extends horizontally toward the re-grinding mechanism, and is fixed to one end of the outer housing.

[0014] Further, the outer tube is horizontally positioned and has an inner tube coaxially mounted inside the tube body. The end of the inner tube facing the re-grinding mechanism has a narrow opening design, and a drive source is installed at the end of the inner tube away from the narrow opening. The output end of the drive source is coaxially fixed with the auger.

[0015] Further, the inner walls of the outer shell are fixed with side plates, which are triangular in shape. Each of the three corners of the side plate is equipped with a drive wheel. A drive cylinder is installed between the two side plates. The extension and retraction end of the drive cylinder is fixed with a boom. One drive wheel is rotatably mounted at the drive wheel, while the other two drive wheels are rotatably mounted between the two side plates. The three drive wheels are connected by a grinding belt.

[0016] Furthermore, the narrow opening of the inner tube is attached to the grinding belt, and both the narrow opening end face of the inner tube and the grinding belt are vertically arranged. A material conveying pipe is fixed at the bottom of the outer shell, and the interface between the material conveying pipe and the outer shell is directly opposite the inner tube near the grinding belt.

[0017] Furthermore, at the connection between the outer tube and the inner tube, an inner tube fixed to the inner wall of the outer tube is provided, with one end of the inner tube directly connected to the inner tube.

[0018] Further, the exhaust fan is connected to the intermediate cylinder via a discharge pipe located near the top of the intermediate cylinder.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This industrial solid waste ultrafine grinding equipment operates under negative pressure through the setup of a preliminary grinding mechanism and a re-grinding mechanism. The intermediate cylinder maintains a continuous negative pressure, which allows the dust generated during the grinding process to be sucked out and collected in a timely manner. This effectively avoids the problem of large amounts of dust escaping during the crushing process of traditional equipment, reduces pollution to the surrounding air environment, and meets the strict environmental protection requirements of modern industrial production. The combination of gas-assisted propulsion and negative pressure conveying to transfer materials not only improves the material conveying efficiency but also reduces dust and leakage generated during material conveying, further reducing the risk of dust pollution to the environment. Compared with traditional crushers, ball mills, and other equipment, it is cleaner and more environmentally friendly in the production process.

[0021] Meanwhile, the equipment's internal crushing structure is cleverly designed, and the movement of components such as the crushing paddle and grinding belt can fully utilize industrial solid waste, improving crushing efficiency. Compared with traditional equipment such as ball mills, its crushing energy consumption may be lower, while obtaining finer powder particles, thus broadening the application range of industrial solid waste in high value-added products. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a side view structural diagram of the present invention;

[0024] Figure 3This is a schematic diagram of the preliminary grinding mechanism position and structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the preliminary grinding mechanism of the present invention.

[0026] Figure 5 This is a schematic diagram of the re-grinding mechanism of the present invention.

[0027] In the diagram: 1. Frame 1; 2. Frame 2; 3. Frame 3; 4. Feeding cylinder; 5. Pumping pipe; 6. Preliminary grinding mechanism; 601. Ring hoop; 602. Chuck; 603. Inclined insertion pipe; 604. Boosting pipe; 605. Crushing paddle; 606. Guide pipe; 607. Ring bearing; 7. Air source 1; 8. Air source 2; 9. Discharge pipe; 10. Feeding component; 101. Outer pipe; 102. Inner insertion pipe; 103. Inner pipe; 104. Screwdriver; 105. Drive source; 11. Re-grinding mechanism; 111. Outer shell; 112. Side plate; 113. Transmission wheel; 114. Drive cylinder; 115. Boom; 116. Grinding belt; 12. Conveying pipe; 13. Intermediate cylinder; 14. Discharge pipe; 15. Exhaust fan. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that in the description of this invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] like Figure 1 and Figure 2 As shown, the present invention provides a technical solution: an industrial solid waste ultrafine grinding equipment, including a feeding cylinder 4, a primary grinding mechanism 6, a feeding component 10, a secondary grinding mechanism 11, an intermediate cylinder 13, and an exhaust fan 15.

[0031] The grinding equipment also includes frame 1, frame 2 and frame 3. Frame 2 is installed on top of frame 1, feeding cylinder 4 is installed at frame 1, frame 3 is installed on one side of frame 1, intermediate cylinder 13 is installed at frame 3, and the preliminary grinding mechanism 6 and the re-grinding mechanism 11 are both located between intermediate cylinder 13 and feeding cylinder 4.

[0032] The feeding cylinder 4, the primary grinding mechanism 6, the secondary grinding mechanism 11, the intermediate cylinder 13, and the exhaust fan 15 are all connected by pipelines. The crushed industrial solid waste is fed from the feeding cylinder 4, and after feeding, the industrial solid waste is transferred to the primary grinding mechanism 6 by air-assisted propulsion. The primary grinding mechanism 6 is also connected to the secondary grinding mechanism 11 and the intermediate cylinder 13. After the device is started, the exhaust fan 15 is always in working condition. After the secondary grinding mechanism 11 completes the processing of the industrial solid waste, part of the industrial solid waste enters the intermediate cylinder 13 under negative pressure, and the other part of the industrial solid waste enters the secondary grinding mechanism 11 through the feeding component 10 for further grinding. After completion, the powder enters the intermediate cylinder 13 and is extracted from the device by the exhaust fan 15.

[0033] The device employs a two-stage grinding mechanism. First, the industrial solid waste is pulverized for the first time by the primary grinding mechanism 6 using airflow and the high-speed rotation of the pulverizing paddle. Then, the secondary grinding mechanism 11 is used for fine pulverization. This staged grinding mode can achieve ultra-fine pulverization of industrial solid waste and meet the application scenarios with different particle size requirements.

[0034] like Figure 3 and Figure 4 As shown, in order to ensure the smooth implementation of the above embodiments, it is necessary to understand that the preliminary grinding mechanism 6 includes a ring hoop 601, in which two upper and lower chucks 602 are fixed. After the upper and lower chucks 602 are fixed by the ring hoop 601, a cavity is formed inside them. A ring bearing 607 is sandwiched between the upper and lower chucks 602, and the grinding paddle 605 is fixed to the inner wall ring of the ring bearing 607.

[0035] Regarding this embodiment, it should be noted that a slanted insertion tube 603 is fixed on the upper chuck 602, and an air source 7 is installed on the frame 1. The output end of the air source 7 is fixed to the end of the slanted insertion tube 603 away from the chuck 602. A pump tube 5 is fixed at the bottom of the upper feed cylinder 4, and the other end of the pump tube 5 is connected to the slanted insertion tube 603. That is to say, the industrial feed will enter the slanted insertion tube 603 after passing through the pump tube 5, and will be accelerated by the airflow of the air source 7 in the slanted insertion tube 603 before entering the chuck 602. A booster tube 604 is fixed on the lower chuck 602, and an air source 8 is also installed on the frame 1. The output end of the air source 8 is fixed... At the other end of the booster tube 604, the end of the booster tube 604 is also inclined, and the inclination direction is the same as that of the inclined insertion tube 603. That is to say, the gas gushing out from the booster tube 604 and the inclined insertion tube 603 will impact the crushing paddle 605 and boost the crushing paddle 605 to rotate. During the rotation, the industrial solid waste in the inclined insertion tube 603 will impact the crushing paddle 605. Under the high-speed rotation of the crushing paddle 605, the industrial solid waste is crushed. After crushing, part of the industrial solid waste enters the intermediate cylinder 13 through the conduit 606 under negative pressure, and the other part of the incompletely crushed industrial solid waste enters the feeding component 10 through the discharge pipe 9.

[0036] like Figure 5 As shown, to achieve fine pulverization of industrial solid waste, it is necessary to understand that the re-grinding mechanism 11 includes an outer housing 111, which is connected to the feeding component 10. Side plates 112 are fixed to the inner walls of both sides of the outer housing 111. The side plates 112 are generally triangular, and drive wheels 113 are provided at the three corners of each side plate 112. A drive cylinder 114 is also installed between two side plates 112. A boom 115 is fixed to the telescopic end of the drive cylinder 114. One drive wheel 113 is rotatably mounted at the drive wheel 113, while the other two drive wheels 113 are rotatably mounted between the two side plates 112. The three drive wheels 113 are connected by a grinding belt 116. 16 is a high-hardness abrasive belt, including but not limited to diamond abrasive belts, ceramic abrasive belts, and CBN abrasive belts, with a grinding fineness of 500-1200 mesh. In this structure, the drive cylinder 114 can adjust the position of one of the drive wheels 113. During use, the three drive wheels 113 remain relatively stable, allowing the grinding belt 116 to move at high speed under the rotation of the drive wheels 113, realizing the grinding action of industrial solid waste. The tension of the grinding belt 116 can be adjusted by adjusting the position of one of the drive wheels 113. If the grinding belt 116 is an abrasive belt that is prone to fatigue, the tension of the grinding belt 116 can be appropriately adjusted by adjusting the position of the drive wheels 113 through the drive cylinder 114.

[0037] like Figure 5As shown, it should be noted that the feeder 10 includes an outer tube 101. One end of the outer tube 101 is connected to the chuck 602 located below. The other end of the outer tube 101 is bent and extends horizontally toward the re-grinding mechanism 11, and is fixed to one end of the outer housing 111. An inner tube 103 is coaxially arranged inside the horizontal section of the outer tube 101. The end of the inner tube 103 facing the re-grinding mechanism 11 has a narrow opening design, and the narrow opening is attached to the grinding belt 116 or has a gap of 100um-1mm. An auger 104 is arranged in the inner tube 103. The auger 104 is rotatably installed at the end of the inner tube 103 away from the narrow opening. A drive source 105 is installed at the end of the inner tube 103 away from the narrow opening. The output end of the drive source 105 is coaxially fixed with the auger 104.

[0038] With the support of the above embodiments, a portion of the industrial solid waste, after being processed by the preliminary grinding mechanism 6, is transferred from the outer tube 101 to the inner tube 103. In order to ensure the quality of the transfer of industrial solid waste, an inner insertion tube 102 fixed to the inner wall of the outer tube 101 is provided at the connection between the outer tube 101 and the inner tube 103. One end of the inner insertion tube 102 is directly connected to the inner tube 103, which can ensure that all industrial solid waste can be transferred to the inner tube 103.

[0039] With the support of the above structure, the inner tube 103, the auger 104 and the drive source 105 together form a rotary conveyor structure. The industrial solid waste material entering the inner tube 103 will be transferred towards the grinding belt 116 under the rotation of the auger 104, and the industrial solid waste will be gradually squeezed during the transfer process. The industrial solid waste will be gradually squeezed out from the narrow end. During the extrusion process, the grinding belt 116 moves at high speed and comes into contact with the industrial solid waste, so as to achieve the effect of fine pulverization of the industrial solid waste.

[0040] In the above embodiment, the narrow end face of the inner tube 103 and the grinding belt 116 are both vertically arranged. A conveying pipe 12 is fixed at the bottom of the outer shell 111. The interface between the conveying pipe 12 and the outer shell 111 is directly opposite the inner tube 103 and close to the grinding belt 116. The ground industrial solid waste can be quickly discharged through the conveying pipe 12. It should be understood that the other end of the conveying pipe 12 is connected to the intermediate cylinder 13. Under the continuous operation of the exhaust fan 15, the interior of the intermediate cylinder 13 is continuously under negative pressure. When the grinding belt 116 is grinding, the generated powder is quickly sucked out of the conveying pipe 12 under negative pressure, and after passing through the intermediate cylinder 13, it is extracted and collected by the exhaust fan 15.

[0041] The exhaust fan 15 is connected to the intermediate cylinder 13 through the discharge pipe 14 to ensure the normal conveying of powder.

[0042] In summary, after crushing, industrial solid waste is fed into the feeding cylinder 4. Under the action of negative pressure and air source propulsion, the industrial solid waste is transferred to the primary grinding mechanism 6. In the primary grinding mechanism 6, the industrial solid waste is accelerated by the airflow of air source 7 in the inclined insertion tube 603 and enters the chuck 602, impacting the crushing paddle 605 driven by air source 8. The high-speed rotation of the crushing paddle 605 crushes the industrial solid waste. After crushing, part of the industrial solid waste enters the intermediate cylinder 13 through the conduit 606 under the action of negative pressure, while the other part, which is not completely crushed, enters the feeding device 10 through the discharge pipe 9. Driven by the drive source 105, the auger 104 in the material component 10 rotates, continuously squeezing and transferring the industrial solid waste entering the inner tube 103 toward the grinding belt 116 of the re-grinding mechanism 11. During the squeezing process, the grinding belt 116 moves at high speed and comes into contact with the industrial solid waste, achieving fine pulverization. The pulverized industrial solid waste is discharged into the intermediate cylinder 13 through the conveying pipe 12 and is finally extracted and collected by the exhaust fan 15. Throughout the process, the exhaust fan 15 works continuously to keep the interior of the intermediate cylinder 13 under negative pressure, ensuring that the powder generated during the grinding process can be sucked out and collected in time.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An industrial solid waste ultrafine grinding equipment, characterized in that, include: Feeding cylinder (4), primary grinding mechanism (6), feeding component (10), secondary grinding mechanism (11), intermediate cylinder (13) and exhaust fan (15); The feeding cylinder (4), the primary grinding mechanism (6), the secondary grinding mechanism (11), the intermediate cylinder (13) and the exhaust fan (15) are all connected by pipes. The crushed industrial solid waste is fed from the feeding cylinder (4), and after the feeding is completed, the industrial solid waste is transferred to the primary grinding mechanism (6) by air source propulsion. The primary grinding mechanism (6) is connected to the secondary grinding mechanism (11) and the intermediate cylinder (13) by pipelines. A portion of the industrial solid waste is processed by the primary grinding mechanism (6) under negative pressure and then enters the intermediate cylinder (13). Another portion of the industrial solid waste enters the secondary grinding mechanism (11) through the feeding component (10) for further grinding. The preliminary grinding mechanism (6) includes a ring hoop (601), in which two chucks (602) are fixed, and the two chucks (602) are fixed by the outer ring hoop (601). A cavity is formed between the two chucks (602), and a ring bearing (607) is sandwiched between the two chucks (602). The grinding paddle (605) is fixed to the inner ring of the ring bearing (607). The re-grinding mechanism (11) includes an outer shell (111), which is connected to a feeding component (10). The feeding component (10) includes an outer tube (101), one end of which is connected to a chuck (602) located below. The other end of the outer tube (101) is bent and extends horizontally toward the re-grinding mechanism (11) and is fixed to one end of the outer shell (111). An inner tube (103) is coaxially arranged inside a section of the outer tube (101) in a horizontal state. The end of the inner tube (103) facing the re-grinding mechanism (11) has a narrow opening design. A drive source (105) is installed at the end of the inner tube (103) away from the narrow opening. The output end of the drive source (105) is coaxially fixed with the auger (104). Side plates (112) are fixed to the inner walls of both sides of the outer shell (111). The side plates (112) are triangular in shape, and transmission wheels (113) are provided at the three corners of the side plates (112). A drive cylinder (114) is also installed between the two side plates (112). A boom (115) is fixed to the telescopic end of the drive cylinder (114). One of the transmission wheels (113) is rotatably installed at the boom (115), while the other two transmission wheels (113) are rotatably installed between the two side plates (112). The three transmission wheels (113) are connected by a grinding belt (116). The narrow opening of the inner tube (103) is attached to the grinding belt (116), and the end face of the narrow opening of the inner tube (103) and the grinding belt (116) are both vertically arranged. The bottom of the outer shell (111) is fixed with a conveying pipe (12), and the interface between the conveying pipe (12) and the outer shell (111) is directly opposite the inner tube (103) and close to the grinding belt (116).

2. The industrial solid waste ultrafine grinding equipment according to claim 1, characterized in that: The ultrafine grinding equipment also includes a first frame (1), a second frame (2), and a third frame (3). The second frame (2) is installed on the top of the first frame (1), the feeding cylinder (4) is installed at the second frame (2), the third frame (3) is installed on one side of the first frame (1), the intermediate cylinder (13) is installed at the third frame (3), and the preliminary grinding mechanism (6) and the re-grinding mechanism (11) are both located between the intermediate cylinder (13) and the feeding cylinder (4).

3. The industrial solid waste ultrafine grinding equipment according to claim 2, characterized in that: A slanted insertion tube (603) is fixed on the upper chuck (602). An air source (7) is installed on the frame (1). The output end of the air source (7) is fixed to the end of the slanted insertion tube (603) away from the chuck (602). A pump pipe (5) is fixed at the bottom of the upper material cylinder (4). The other end of the pump pipe (5) is connected to the slanted insertion tube (603). A booster tube (604) is fixed on the lower chuck (602). An air source (8) is also installed on the frame (1). The output end of the air source (8) is fixed to the other end of the booster tube (604). The end of the booster tube (604) is also inclined, and the inclination direction is the same as that of the slanted insertion tube (603).

4. The industrial solid waste ultrafine grinding equipment according to claim 3, characterized in that: An inner tube (102) is fixed to the inner wall of the outer tube (101) at the connection between the outer tube (101) and the inner tube (103), and one end of the inner tube (102) is directly connected to the inner tube (103).

5. The industrial solid waste ultrafine grinding equipment according to claim 4, characterized in that: The exhaust fan (15) is connected to the intermediate cylinder (13) via a discharge pipe (14), which is located near the top of the intermediate cylinder (13).

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