Magnetic separation iron removal device for hazardous waste slag

Abstract

The utility model relates to the technical field of furnace slag treatment, in particular to a hazardous waste furnace slag magnetic separation iron removal device which is provided with a supporting frame, a conveying unit is arranged on the supporting frame and comprises a conveying belt, and a furnace slag leveling unit is arranged above the conveying belt and comprises a leveling supporting plate arranged on the supporting frame. A lifting driver is arranged on the leveling supporting plate, a leveling plate is arranged on the lifting driver, and rake teeth are arranged on the leveling plate, slag can be effectively leveled in the conveying process by arranging the slag leveling unit, a gully structure is formed on the surface of the slag, the contact area between the surface of the slag and the magnetic separation device is increased, and the magnetic separation efficiency is improved; and by arranging the lifting driver, the height of the leveling plate can be adjusted according to the thickness of the slag, so that the device can treat different types of slag, the universality and practicability of the device are improved, the automation degree is high, the requirement for manual intervention is reduced, and the operation difficulty and the labor cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of slag treatment, in particular to a magnetic separation and iron removal device for hazardous waste slag. Background Art

[0002] The municipal solid waste incineration process produces two main types of residues: slag directly from the incinerator, and fly ash meticulously collected by dust removal equipment. Both types of residues contain significant levels of heavy metals. If not properly and effectively treated, they pose a potential risk to the surrounding ecological environment.

[0003] During the slag treatment process, it needs to be placed on a conveyor belt for subsequent separation and disposal. However, in actual operation, the slag is often stacked unevenly on the conveyor belt. This uneven stacking directly leads to a decrease in the contact area between the slag and the electromagnet blocks on the magnetic separator. When the contact area between the slag and the electromagnet blocks decreases, the adsorption efficiency of the magnetic separator also decreases, making some heavy metal residues unable to be effectively adsorbed. In addition, the slag sometimes contains a large amount of water, which is easily spilled during transportation on the conveyor belt, causing pollution to the surrounding environment, chemical leaks, and contamination of the working environment. When these slags containing heavy metal residues are discharged from the treatment plant along with other slags, they will enter the natural environment through various channels, such as soil and water sources, causing serious pollution to the ecological environment. Summary of the Invention

[0004] In order to solve the above problems, the present application provides a hazardous waste slag magnetic separation and iron removal device, which is provided with a support frame, a conveying unit is provided on the support frame, the conveying unit includes a conveyor belt, blocking belts are provided on both sides of the conveyor belt, and a slag leveling unit is provided above the conveyor belt. The slag leveling unit includes a leveling support plate provided on the support frame, a lifting drive is provided on the leveling support plate, a leveling plate is provided on the lifting drive, and rake teeth are provided on the leveling plate.

[0005] In one embodiment, a receiving tray is provided at the bottom of the conveyor belt, the outer edge width of the receiving tray is greater than the outer edge of the conveyor belt, and a water outlet is provided on the receiving tray.

[0006] In one embodiment, the conveying unit further includes a driving roller and a driven roller, and the driving roller is connected to the conveying driver.

[0007] In one embodiment, the length of the flat plate is smaller than the distance between the two blocking strips.

[0008] In one embodiment, the lifting driver is a servo motor or a cylinder.

[0009] In one embodiment, the transmission driver is a servo motor.

[0010] In one embodiment, the flat support plate is fixedly mounted on the support frame.

[0011] The beneficial effects of the present invention are:

[0012] The present application discloses a magnetic separation and iron removal device for hazardous waste slag, which is provided with a support frame, a conveying unit is provided on the support frame 1, the conveying unit includes a conveyor belt, a slag leveling unit is provided above the conveyor belt, the slag leveling unit includes a leveling support plate provided on the support frame, a lifting drive is provided on the leveling support plate, a leveling plate is provided on the lifting drive, and rake teeth are provided on the leveling plate. When the equipment is in operation, the slag is placed on the conveyor belt, and the conveyor belt starts to operate to transport the slag along a predetermined path to a magnetic separation area. While the slag is being transported, the lifting drive adjusts the height of the leveling plate according to the thickness of the slag, and the leveling plate and the rake teeth thereon level the slag to make the slag flat as a whole. The rake teeth organize the slag into a gully structure, and the leveled slag continues to be transported to the magnetic separation area by the conveyor belt. The magnetic separation device uses a magnetic field to attract the iron components in the slag and separate them from the slag. In this application, a slag leveling unit is provided so that the slag can be effectively leveled during the transportation process, and the groove structure formed on the slag surface increases the contact area between the slag surface and the magnetic separation device, thereby improving the magnetic separation efficiency; the setting of the lifting drive allows the height of the leveling plate to be adjusted according to the thickness of the slag, so that the device can handle different types of slag, thereby improving its versatility and practicality, and having a high degree of automation, reducing the need for manual intervention, and reducing the difficulty of operation and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the utility model structure;

[0014] Figure 2 It is a front view of the utility model;

[0015] Figure 3 for Figure 2 Partial schematic diagram at point A in the middle;

[0016] Explanation of symbols in the figure:

[0017] 1. Support frame;

[0018] 2. Conveying unit; 21. Conveying belt; 22. Blocking belt; 23. Driven roller; 24. Conveying driver;

[0019] 3. Slag leveling unit; 31. Leveling support plate; 32. Lifting drive; 33. Leveling plate; 34. Rake teeth;

[0020] 4. Material receiving tray; 41. Water outlet. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0022] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0023] like Figure 1-3 As shown, a hazardous waste slag magnetic separation and iron removal device is provided with a support frame 1, a conveying unit 2 is provided on the support frame 1, the conveying unit 2 includes a conveyor belt 21, blocking belts 22 are provided on both sides of the conveyor belt 21, a slag leveling unit 3 is provided above the conveyor belt 21, the slag leveling unit 3 includes a leveling support plate 31 provided on the support frame 1, a lifting drive 32 is provided on the leveling support plate 31, a leveling plate 33 is provided on the lifting drive 32, and a rake teeth 34 is provided on the leveling plate 33.

[0024] Specifically, the lifting drive 32 can be a servo motor or a cylinder. The conveyor belt 21 is used to continuously and evenly transport the slag. It is the main conveying tool in the slag processing process. The barrier belts 22 are arranged on both sides of the conveyor belt 21 to prevent the slag from scattering during transportation and keep the slag concentrated and stable on the conveyor belt 21. The leveling support plate 31 provides an installation platform for the lifting drive 32 to ensure that the leveling operation can be carried out stably. The lifting drive 32 can control the height of the leveling support plate 31 so that it can be adaptively adjusted according to the thickness of different slags to achieve the best leveling effect. The rake teeth 34 are arranged on the leveling plate 33. Through their shape and arrangement, they can further stir the slag during the leveling process. The gully structure formed on the slag surface increases the chance of contact between the iron component and the magnetic separation device. When the equipment is in operation, the slag is placed on the conveyor belt 21, and the conveyor belt 21 starts to operate, transporting the slag along a predetermined path to the magnetic separation area. While the slag is being transported, the lifting drive 32 adjusts the height of the leveling plate 33 according to the thickness of the slag. The leveling plate 33 and the rake teeth 34 thereon level the slag to make the slag flat as a whole. The rake teeth 34 organize the slag into a gully structure, increasing the contact area between the slag surface and the magnetic separation device. The leveled slag continues to be transported by the conveyor belt to the magnetic separation area. The magnetic separation device uses a magnetic field to attract the iron components in the slag and separate them from the slag. In this application, by setting up the slag leveling unit 3, the slag can be effectively leveled during the transportation process, and the gully structure formed on the slag surface improves the magnetic separation efficiency; the setting of the lifting drive 32 allows the height of the leveling plate 33 to be adjusted according to the thickness of the slag, so that the device can handle different types of slag, improve its versatility and practicality, and has a high degree of automation, reducing the need for manual intervention, and reducing the difficulty of operation and labor costs.

[0025] like Figure 1 As shown, a receiving tray 4 is provided at the bottom of the conveyor belt 21 , the outer edge width of the receiving tray 4 is greater than the outer edge of the conveyor belt 21 , and a water outlet 41 is provided on the receiving tray 4 .

[0026] Specifically, since the outer edge width of the receiving tray 4 is greater than the outer edge of the conveyor belt 21, it can effectively catch the slag that may fall from the conveyor belt 21 due to various reasons (such as vibration, instability during transportation, etc.), avoiding the environmental pollution that may be caused by the slag falling to the outside of the equipment. Slag sometimes contains moisture, which may drip during the transportation process. The receiving tray 4 can effectively catch this moisture and prevent it from dripping directly to the bottom of the equipment or the surrounding environment, reducing the risk of environmental pollution. The water outlet 41 provided on the receiving tray 4 is connected to the water outlet pipe, allowing the accumulated water to be discharged smoothly and collected and processed in a centralized manner.

[0027] like Figure 1As shown, the conveying unit 2 further includes a driving roller and a driven roller 23 , and the driving roller is connected to a conveying driver 24 .

[0028] Specifically, the conveying driver 24 is a servo motor, and the conveying driver 24 can drive the active roller to rotate, thereby driving the driven roller 23 to rotate, thereby realizing the conveyance of the slag.

[0029] like Figure 1 、 3 As shown, the length of the flat plate 33 is smaller than the distance between the two barrier strips 22 .

[0030] Specifically, the leveling plate 33 can be easily moved between the two barrier strips 22 without interfering with them, reducing downtime and maintenance costs caused by equipment collision or friction. Placing the leveling plate 33 between the barrier strips 22 allows for more precise control of its impact area on the slag, ensuring uniform slag leveling and minimizing voids and accumulation.

[0031] The present application discloses a magnetic separation and iron removal device for hazardous waste slag, which is provided with a support frame 1, a conveying unit 2 is provided on the support frame 1, the conveying unit 2 includes a conveyor belt 21, barrier belts 22 are provided on both sides of the conveyor belt 21, a slag leveling unit 3 is provided above the conveyor belt 21, the slag leveling unit 3 includes a leveling support plate 31 provided on the support frame 1, a lifting drive 32 is provided on the leveling support plate 31, a leveling plate 33 is provided on the lifting drive 32, and a rake 34 is provided on the leveling plate 33. When the equipment is in operation, the slag The slag is placed on the conveyor belt 21, which starts to operate and transports the slag along a predetermined path to the magnetic separation area. While the slag is being transported, the lifting drive 32 adjusts the height of the leveling plate 33 according to the thickness of the slag. The leveling plate 33 and the rake teeth 34 thereon level the slag to make the slag flat as a whole. The rake teeth 34 organize the slag into a gully structure. The leveled slag is continued to be transported by the conveyor belt to the magnetic separation area. The magnetic separation device uses a magnetic field to attract the iron components in the slag and separate them from the slag. In this application, the slag leveling unit 3 is provided so that the slag can be effectively leveled during transportation, and the gully structure formed on the slag surface increases the contact area between the slag surface and the magnetic separation device, thereby improving the magnetic separation efficiency. The provision of the lifting drive 32 allows the height of the leveling plate 33 to be adjusted according to the thickness of the slag, so that the device can handle different types of slag, thereby improving its versatility and practicality, and having a high degree of automation, reducing the need for manual intervention, and reducing the difficulty of operation and labor costs.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. A device for magnetic separation and iron removal of hazardous waste slag, comprising a support frame (1), a conveying unit (2) being arranged on the support frame (1), the conveying unit (2) comprising a conveyor belt (21), and barrier belts (22) being arranged on both sides of the conveyor belt (21), characterized in that: A slag leveling unit (3) is provided above the conveyor belt (21), and the slag leveling unit (3) comprises a leveling support plate (31) provided on the support frame (1), a lifting drive (32) is provided on the leveling support plate (31), a leveling plate (33) is provided on the lifting drive (32), and rake teeth (34) are provided on the leveling plate (33).

2. A hazardous waste slag magnetic separation and iron removal device according to claim 1, characterized in that: A receiving tray (4) is provided at the bottom of the conveyor belt (21), the outer edge width of the receiving tray (4) is greater than the outer edge of the conveyor belt (21), and a water outlet hole (41) is provided on the receiving tray (4).

3. The device for magnetic separation and iron removal of hazardous waste slag according to claim 1, characterized in that: The transmission unit (2) further comprises a driving roller and a driven roller (23), wherein the driving roller is connected to a transmission driver (24).

4. The device for magnetic separation and iron removal of hazardous waste slag according to claim 1, characterized in that: The length of the flat plate (33) is smaller than the distance between the two blocking strips (22).

5. The device for magnetic separation and iron removal of hazardous waste slag according to claim 1, characterized in that: The lifting driver (32) is a servo motor or a cylinder.

6. The device for magnetic separation and iron removal of hazardous waste slag according to claim 3, characterized in that: The transmission driver (24) is a servo motor.

7. The device for magnetic separation and iron removal of hazardous waste slag according to claim 1, characterized in that: The flat support plate (31) is fixedly mounted on the support frame (1).

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