A hazardous waste rotary kiln slag iron removal device

Abstract

The utility model provides a kind of dangerous waste rotary kiln slag iron removal device, including frame, magnetic device, platform, the inside fixed connection of frame has magnetic device, the end fixed connection of frame top surface has platform;The top fixed connection of platform has motor, the inside movable connection of frame has main cylinder.The utility model's advantage lies in: the iron scrap on the surface of belt can be cleaned and scraped, then start vibration motor, scraper vibration, iron scrap is shaken off, so can greatly reduce the attachment of scrap on the belt.The device is adsorbed on the iron scrap on the belt by magnetic device, using gravity to make most iron scrap fall naturally, then cooperate with scraper to clean and scrape residual iron scrap and the shaking off effect of vibration motor, can comprehensively, efficiently remove the iron scrap on the belt, greatly improve the iron removal effect, ensure the effective separation of iron impurities in slag.

Description

Technical Field

[0001] This utility model relates to the field of slag iron removal technology, and in particular to a device for removing iron from slag in a rotary kiln for hazardous waste. Background Technology

[0002] Hazardous waste incinerated in rotary kilns produces a large amount of slag. This slag typically contains a certain amount of ferrous metal fragments. Direct landfilling or subsequent treatment not only wastes iron resources but also hinders the resource utilization of the slag (such as its use as building material raw material) due to the presence of metal, and may even pose potential environmental risks. Therefore, effective iron removal from rotary kiln slag is a crucial step in achieving waste resource recovery, volume reduction, and harmless disposal.

[0003] Currently, magnetic separation is the most common method for separating ferrous impurities from slag. A common piece of equipment is the belt magnetic separator, which works by using a magnetic field generated by a magnetic device to attract ferromagnetic substances contained in the slag on the conveyor belt, thereby separating ferrous and non-ferrous materials.

[0004] However, existing magnetic separation iron removal devices have some shortcomings in practical applications. First, during the magnetic separation process, although most iron filings fall off due to gravity after leaving the magnetic field area, some fine or sticky iron filings remain attached to the surface of the conveyor belt due to magnetic hysteresis, electrostatic adsorption, or oil adhesion. These residual iron filings re-enter the working area with the belt, not only reducing the efficiency of single-pass iron removal but also increasing belt wear over time, affecting the equipment's service life and operational stability. Therefore, a hazardous waste rotary kiln slag iron removal device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0006] Therefore, one objective of this utility model is to provide a hazardous waste rotary kiln slag iron removal device to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0007] To achieve the above objectives, one embodiment of the present invention provides a hazardous waste rotary kiln slag iron removal device, including a frame, a magnetic device, and a platform. The magnetic device is fixedly connected to the inner side of the frame, and the platform is fixedly connected to the end of the top surface of the frame. A motor is fixedly connected to the top of the platform, and a main roller is movably connected to the inner side of the frame; The inner side of the frame is movably connected to several auxiliary rollers, and the outer surfaces of the main roller and auxiliary rollers are movably connected to belts; The belt is movably connected to the bottom surface of the magnetic device; A connector is fixedly connected to the side of the frame, an elastic element is fixedly connected to the inner side of the connector, a fixing plate is fixedly connected between the elastic elements, and a scraper is fixedly connected between the fixing plates. The bottom surface of the scraper is fixedly connected to two side plates, the scraper is inclined, and the upper end of the scraper is movably connected to the surface of the belt. A base plate is fixedly connected to the top of the scraper, and a vibration motor is fixedly connected to the top of the base plate.

[0008] Preferably, in any of the above embodiments, the frame and the magnetic device are connected via a flange, and the platform is welded to the frame.

[0009] The above technical solution works as follows: First, the motor starts, driving the main drum to rotate via sprockets and chains. The main drum, in turn, drives the belt to circulate inside the frame. Simultaneously, several auxiliary drums provide support and guide the belt's rotation. During rotation, the belt passes over the bottom surface of a magnetic device fixed inside the frame. When slag containing iron filings passes over the magnetic device area on the belt, the iron filings are attracted to the belt surface by the magnets.

[0010] As the belt continues to rotate and leaves the magnetic device, most of the iron filings lose their magnetic attraction and fall naturally due to gravity. However, some iron filings remain attached to the belt surface. At this point, a scraper fixed to the side of the frame comes into play. The top of the scraper is movably connected to the belt surface, and as the belt rotates, the scraper can clean the remaining iron filings from the belt surface.

[0011] After scraping for a period of time, the vibration motor fixed on the top seat plate of the scraper is started. The vibration motor generates vibration, which drives the scraper to vibrate. This vibration can further shake off the iron debris that has not been completely scraped off from the scraper and the belt surface, thereby greatly reducing the debris adhesion on the belt and ensuring the iron removal effect of the device and the normal operation of the belt.

[0012] Preferably, in any of the above embodiments, the main roller end and the motor output end have sprockets, and the outer surface of the sprockets is movably connected to a chain.

[0013] Preferably, in any of the above embodiments, the width of the belt is smaller than the width of the main roller, and the joint is welded to the frame.

[0014] The core design of the device is as follows: the lower part of the belt rotates from left to right. After leaving the magnetic device, most of the iron filings fall naturally due to gravity. The top of the scraper is movably connected to the belt surface, which can scrape the iron filings on the belt surface. Then, the vibration motor is activated, and the scraper vibrates to shake off the iron filings, which can greatly reduce the amount of filings adhering to the belt. This device uses a magnetic device to attract iron filings on the belt, uses gravity to make most of the iron filings fall naturally, and combines the scraper to clean the remaining iron filings with the vibration of the motor to shake them off. This can comprehensively and efficiently remove iron filings from the belt, greatly improve the iron removal effect, and ensure the effective separation of iron impurities in the slag.

[0015] By using a multi-stage iron removal method, iron resources in slag can be recovered to the greatest extent, improving the iron recovery rate, increasing economic benefits for enterprises, and also meeting the environmental protection requirements for resource recycling.

[0016] Preferably, in any of the above embodiments, the elastic element is connected to the connector by screws, the elastic element is made of rubber, and the elastic element is connected to the fixing plate by screws.

[0017] Preferably, in any of the above solutions, the scraper and side plate are made of plastic, and the seat plate and scraper are connected by screws.

[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: This hazardous waste rotary kiln slag iron removal device features a conveyor belt that rotates from left to right. After leaving the magnetic device, most of the iron debris falls naturally due to gravity. The top of the scraper is movably connected to the conveyor belt surface, scraping away the iron debris. Then, a vibration motor is activated, causing the scraper to vibrate and shake off the remaining iron debris, significantly reducing debris adhesion to the conveyor belt. This device uses a magnetic device to attract iron debris from the conveyor belt, utilizes gravity to allow most of the debris to fall naturally, and combines this with scraping of residual iron debris by the scraper and vibration from the motor to thoroughly and efficiently remove iron debris from the conveyor belt, greatly improving the iron removal effect and ensuring the effective separation of iron impurities from the slag.

[0019] By using a multi-stage iron removal method, iron resources in slag can be recovered to the greatest extent, improving the iron recovery rate, increasing economic benefits for enterprises, and also meeting the environmental protection requirements for resource recycling.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a structural schematic diagram of the present invention from a second perspective; Figure 3 This is a structural schematic diagram of the present invention from a third-view perspective; Figure 4 This utility model Figure 2 A magnified structural diagram of point A in the middle.

[0022] In the diagram: 1-Frame, 2-Magnetic device, 3-Platform, 4-Motor, 5-Main roller, 6-Secondary roller, 7-Belt, 8-Joint, 9-Elastic element, 10-Fixing plate, 11-Scraper, 12-Side plate, 13-Seat plate, 14-Vibration motor. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] like Figure 1-4 As shown, the hazardous waste rotary kiln slag iron removal device includes a frame 1, a magnetic device 2, and a platform 3. The magnetic device 2 is fixedly connected to the inner side of the frame 1, and the platform 3 is fixedly connected to the end of the top surface of the frame 1. A motor 4 is fixedly connected to the top of platform 3, and a main roller 5 is movably connected to the inner side of frame 1; Several auxiliary rollers 6 are movably connected to the inner side of the frame 1, and belts 7 are movably connected to the outer surfaces of the main roller 5 and the auxiliary rollers 6. The belt 7 is movably connected to the bottom surface of the magnetic device 2; A connector 8 is fixedly connected to the side of the frame 1, an elastic element 9 is fixedly connected to the inside of the connector 8, a fixing plate 10 is fixedly connected between the elastic elements 9, and a scraper 11 is fixedly connected between the fixing plates 10. Two side plates 12 are fixedly connected to the bottom surface of the scraper 11. The scraper 11 is inclined, and the upper end of the scraper 11 is movably connected to the surface of the belt 7. A base plate 13 is fixedly connected to the top of the scraper 11, and a vibration motor 14 is fixedly connected to the top of the base plate 13.

[0026] Example 1: The frame 1 and the magnetic device 2 are connected via flanges, and the platform 2 is welded to the frame 1. A sprocket is located at the end of the main roller 5 and the output end of the motor 4, with a chain movably connected to the outer surface of the sprocket. The width of the belt 7 is smaller than the width of the main roller 5, and the connector 8 is welded to the frame 1. The elastic element 9 is connected to the connector 8 via screws; the elastic element 9 is made of rubber, and it is also connected to the fixing plate 10 via screws. The scraper 11 and side plate 12 are made of plastic, and the seat plate 13 is connected to the scraper 11 via screws.

[0027] Example 2: First, motor 4 starts, driving main drum 5 to rotate via sprockets and chain. Main drum 5 then drives belt 7 to rotate cyclically inside frame 1. Simultaneously, several auxiliary drums 6 provide auxiliary support and guide the rotation of belt 7. During rotation, belt 7 passes over the bottom surface of magnetic device 2 fixed inside frame 1. When slag material containing iron filings passes over the area of ​​magnetic device 2 on the belt, the iron filings are attracted to the surface of belt 7 by the magnetic device 2.

[0028] As belt 7 continues to rotate, after leaving magnetic device 2, most of the iron filings lose their magnetic attraction and fall naturally due to their own gravity. However, some iron filings remain attached to the surface of belt 7. At this time, scraper 11, fixed to the side of frame 1, comes into play. The top of scraper 11 is movably connected to the surface of belt 7. As belt 7 rotates, scraper 11 can scrape away the iron filings remaining on the surface of belt 7. After scraping for a period of time, vibration motor 14, fixed to the top seat plate 13 of scraper 11, is activated. Vibration motor 14 generates vibration, causing scraper 11 to vibrate as well. This vibration can further shake off the iron filings attached to scraper 11 and the surface of belt 7 that have not been completely scraped off, thereby greatly reducing the amount of filings adhering to belt 7 and ensuring the iron removal effect of the device and the normal operation of the belt.

[0029] The working principle of this utility model is as follows: At a hazardous waste rotary kiln processing plant, iron removal treatment is required for the slag produced by the rotary kiln to recover iron resources and prevent iron impurities from affecting subsequent processing technologies and equipment. The plant selected this hazardous waste rotary kiln slag iron removal device.

[0030] First, install the device. Fix the frame 1 in the appropriate position according to the design requirements. Securely install the magnetic device 2 inside the frame 1 using the flange, ensuring the accurate and stable positioning of the magnetic device 2. Next, weld the platform 3 to the top end of the frame 1, and install the motor 4 on top of the platform 3. Then, movably install the main roller 5 and several auxiliary rollers 6 inside the frame 1, and lay the belt 7, making the belt 7 movably connected to the outer surfaces of the main roller 5 and auxiliary rollers 6, while ensuring that the belt 7 can smoothly pass over the bottom surface of the magnetic device 2.

[0031] Weld the connector 8 to the side of the frame 1, and connect the elastic element 9 (made of rubber) to the inside of the connector 8 with screws. Then connect the fixing plate 10 to the elastic element 9 with screws. Next, fix the scraper 11 between the fixing plates 10, ensuring that the scraper 11 is in an inclined state and that its upper end can be movably connected to the surface of the belt 7. Fix the two side plates 12 to the bottom of the scraper 11, and install the seat plate 13 on the top of the scraper 11 with screws. Finally, fix the vibration motor 14 to the top of the seat plate 13.

[0032] After installation, the device should be tested. Start motor 4 and observe whether the rotation of belt 7 is smooth, whether the operation of main roller 5 and auxiliary roller 6 is normal, and whether the transmission of sprocket and chain is smooth. At the same time, check whether the magnetic force of magnetic device 2 is normal to ensure that it can effectively attract iron filings on belt 7.

[0033] After normal commissioning, the slag iron removal operation began. Slag containing iron filings was placed on conveyor belt 7. As belt 7 rotated, the slag passed through the area of ​​magnetic device 2, and the iron filings were attracted to the surface of belt 7. When belt 7 left magnetic device 2, most of the iron filings fell due to gravity, while the remaining iron filings were scraped off by scraper 11. Periodically, vibration motor 14 was activated to shake off the remaining iron filings on scraper 11 and belt 7. After a period of operation, the device successfully separated a large amount of iron filings from the slag, effectively utilizing the recovered iron resources and ensuring the smooth operation of subsequent processing steps.

[0034] Compared with the prior art, the present invention has the following advantages: This hazardous waste rotary kiln slag iron removal device features a belt 7 that rotates from left to right. After leaving the magnetic device 2, most of the iron debris falls naturally due to gravity. The top of the scraper 11 is movably connected to the belt surface, scraping away the iron debris. Then, the vibration motor 14 is activated, causing the scraper 11 to vibrate and shake off the remaining iron debris, significantly reducing debris adhesion on the belt 7. This device uses the magnetic device 2 to attract iron debris from the belt 7, utilizes gravity to allow most of the iron debris to fall naturally, and combines this with the scraper 11 to clean the remaining iron debris and the vibration motor 14 to shake it off. This comprehensive and efficient removal of iron debris from the belt 7 greatly improves the iron removal effect and ensures the effective separation of iron impurities from the slag.

[0035] By using a multi-stage iron removal method, iron resources in slag can be recovered to the greatest extent, improving the iron recovery rate, increasing economic benefits for enterprises, and also meeting the environmental protection requirements for resource recycling.

Claims

1. A device for removing iron from slag in a hazardous waste rotary kiln, characterized in that, It includes a frame (1), a magnetic device (2), and a platform (3). The magnetic device (2) is fixedly connected to the inner side of the frame (1), and the platform (3) is fixedly connected to the end of the top surface of the frame (1). A motor (4) is fixedly connected to the top of the platform (3), and a main roller (5) is movably connected to the inner side of the frame (1). The inner side of the frame (1) is movably connected to several auxiliary rollers (6), and the outer surfaces of the main roller (5) and auxiliary rollers (6) are movably connected to belts (7). The belt (7) is movably connected to the bottom surface of the magnetic device (2); The side of the frame (1) is fixedly connected to a connector (8), the inside of the connector (8) is fixedly connected to an elastic element (9), the elastic elements (9) are fixedly connected to a fixed plate (10), and the fixed plates (10) are fixedly connected to a scraper (11). The bottom surface of the scraper (11) is fixedly connected to two side plates (12), the scraper (11) is inclined, and the upper end of the scraper (11) is movably connected to the surface of the belt (7). A seat plate (13) is fixedly connected to the top of the scraper (11), and a vibration motor (14) is fixedly connected to the top of the seat plate (13).

2. The hazardous waste rotary kiln slag iron removal device as described in claim 1, characterized in that: The frame (1) is connected to the magnetic device (2) via a flange, and the platform (3) is welded to the frame (1).

3. The hazardous waste rotary kiln slag iron removal device as described in claim 2, characterized in that: The main roller (5) has a sprocket at its end and the output end of the motor (4), and a chain is movably connected to the outer surface of the sprocket.

4. The hazardous waste rotary kiln slag iron removal device as described in claim 3, characterized in that: The width of the belt (7) is smaller than the width of the main roller (5), and the joint (8) is welded to the frame (1).

5. The hazardous waste rotary kiln slag iron removal device as described in claim 4, characterized in that: The elastic element (9) is connected to the connector (8) by screws. The elastic element (9) is made of rubber. The elastic element (9) is connected to the fixing plate (10) by screws.

6. The hazardous waste rotary kiln slag iron removal device as described in claim 5, characterized in that: The scraper (11) and side plate (12) are made of plastic, and the seat plate (13) is connected to the scraper (11) by screws.

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