Waste incineration slag sorting device

Abstract

The utility model discloses a garbage incineration slag sorting device which comprises a roller screening machine (1), a cleaning air dryer (2), an electromagnetic iron remover (3) and an eddy current sorting machine (4), the roller screening machine (1) and the cleaning air dryer (2) are sequentially arranged, the electromagnetic iron remover (3) and the eddy current sorting machine (4) are arranged on the cleaning air dryer (2), the roller screening machine (1) comprises a rack (5), and the rack (5) is provided with an outer barrel (6) which is obliquely arranged. A screen drum (7) capable of rotating relative to the outer drum body (6) is arranged in the outer drum body (6), a plurality of groups of screen meshes (8) of which the screen hole radiuses are continuously increased in the material feeding direction are arranged on the screen drum (7), a spraying pipe (9) is arranged on the upper side of the screen drum (7), a screen plate (10) which is obliquely arranged is arranged on the lower side of the screen drum (7), baffles (13) corresponding to the screen meshes (8) are arranged on the upper side of the screen plate (10), and a liquid collecting box (11) is arranged on the lower side of the screen plate (10). The resource utilization rate can be improved, and resource waste is reduced.

Description

Technical Field

[0001] The utility model relates to a slag separation device, in particular to a garbage incineration slag separation device. Background Art

[0002] Garbage incineration is a method for treating solid waste, which is a process of burning garbage into ashes and flue gas at high temperature. Compared with landfill method for garbage treatment, incineration method can greatly reduce the land occupation area of garbage, and has a fast treatment speed and good reduction effect. During the garbage incineration process, heat energy can also be generated, which can be used for power generation or heating. It is a way of energy recovery and can reduce the demand for traditional energy. However, a large amount of slag is generated during the garbage incineration process, and the slag contains various metal components. If it is directly used as waste in the construction industry, it will cause waste of resources. Content of the Utility Model

[0003] The purpose of the utility model is to provide a garbage incineration slag separation device, which can improve the resource utilization rate and reduce resource waste.

[0004] The technical solution of the utility model: A garbage incineration slag separation device includes a drum screening machine, a cleaning and air-drying machine, an electromagnetic separator and an eddy current separator which are arranged in sequence. The drum screening machine includes a frame, on which an outer cylinder body is inclinedly arranged. Inside the outer cylinder body, a screen cylinder that can rotate relative to the outer cylinder body is provided. On the screen cylinder, multiple groups of screen meshes with continuously increasing screen hole radii along the material feeding direction are provided. A spray pipe is arranged above the screen cylinder, a screen plate is inclinedly arranged below the screen cylinder, a baffle corresponding to the screen mesh is arranged above the screen plate, and a liquid collecting box is arranged below the screen plate.

[0005] In the above-mentioned garbage incineration slag separation device, the number of the cleaning and air-drying machines corresponds to the number of the screen meshes.

[0006] In the above-mentioned garbage incineration slag separation device, the cleaning and air-drying machine includes an inclined conveyor frame. Inside the conveyor frame, a belt conveyor is provided. On the belt conveyor, multiple groups of partitions are arranged along the width direction of the belt conveyor. An air duct for downward air supply is arranged above the belt conveyor. A cleaning pool is arranged at the lower end of the belt conveyor. Hangers for fixing the electromagnetic separator are arranged on both sides of the belt conveyor. The electromagnetic separator is arranged behind the air duct, and a collection box is arranged behind the belt conveyor.

[0007] In the above-mentioned garbage incineration slag separation device, a control valve for controlling the discharging speed is arranged at the lower end of the collection box.

[0008] Compared with the prior art, the utility model sorts slag through a drum screening machine, and flushes the slag through a spray pipe to reduce floating dust. The screened slag will be further cleaned by a cleaning and air-drying machine to wash off the dust on the surface of the slag, and the magnetic impurities in the slag are removed by an electromagnetic separator. Finally, the eddy current separator is used for sorting, which can effectively improve the resource utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic structural diagram of the drum screening machine of the utility model;

[0010] Figure 2 is a schematic structural diagram of the cooperation of the cleaning and air-drying machine, electromagnetic separator and eddy current separator of the utility model.

[0011] The reference numerals in the drawings are: 1 - drum screening machine, 2 - cleaning and air-drying machine, 3 - electromagnetic separator, 4 - eddy current separator, 5 - frame, 6 - outer cylinder, 7 - screen cylinder, 8 - screen mesh, 9 - spray pipe, 10 - screen plate, 11 - liquid collection tank, 13 - baffle, 14 - conveyor frame, 15 - belt conveyor, 16 - partition, 17 - cleaning tank, 18 - hanger, 19 - collection box, 20 - control valve, 22 - air duct. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] The following further describes the utility model in conjunction with the drawings and embodiments, but it shall not be used as a basis for limiting the utility model.

[0013] Embodiment. A garbage incineration slag separation device is configured as Figure 1-2 shown, including a drum screening machine 1, a cleaning and air-drying machine 2, and an electromagnetic separator 3 and an eddy current separator 4 arranged on the cleaning and air-drying machine 2 in sequence. The drum screening machine 1 includes a frame 5, and an outer cylinder 6 is arranged on the frame 5 in an inclined manner. A screen cylinder 7 that can rotate relative to the outer cylinder 6 is arranged inside the outer cylinder 6. A plurality of groups of screen meshes 8 with continuously increasing screen hole radii along the material direction are arranged on the screen cylinder 7. A spray pipe 9 is arranged above the screen cylinder 7, a screen plate 10 is arranged below the screen cylinder 7 in an inclined manner, a baffle 13 corresponding to the screen mesh 8 is arranged above the screen plate 10, and a liquid collection tank 11 is arranged below the screen plate 10.

[0014] The number of the cleaning and air-drying machines 2 corresponds to the number of the screen meshes 8.

[0015] The described cleaning and air-drying machine 2 includes a conveyor frame 14 arranged obliquely. A belt conveyor 15 is provided in the conveyor frame 14. A plurality of partitions 16 arranged along the width direction of the belt conveyor 15 are provided on the belt conveyor 15. An air duct 22 for downward air supply is provided above the belt conveyor 15. A cleaning tank 17 is provided at the lower end of the belt conveyor 15. Hangers 18 for fixing the electromagnetic separator 3 are provided on both sides of the belt conveyor 15. The electromagnetic separator 3 is arranged at the rear side of the air duct 22. A collection box 19 is provided at the rear side of the belt conveyor 15.

[0016] A control valve 20 for controlling the discharging speed is provided at the lower end of the described collection box 19.

[0017] The principle of the present utility model: The slag generated by garbage incineration will first enter the drum screening machine 1. The screen cylinder 7 in the drum screening machine 1 will rotate driven by the motor, driving the slag to continuously turn over. The outer cylinder 6 can block the dust. A discharge chute is provided at the lower part of the outer cylinder 6, and a baffle corresponding to the screen 8 is provided on the discharge chute to prevent dust from overflowing and polluting the environment. A spray pipe 9 is provided on the outer cylinder 6, and the spray pipe 9 is arranged above the screen cylinder 7 to wash the slag and reduce the generation of dust. The slag will be screened by a plurality of screens 8. Baffles 13 corresponding to the screens 8 are provided on the screen plate 10, which can divide the screen plate 10 into parts for storing the slag falling from the screens 8 with different pore diameters. The water in the slag will fall through the pores of the screen plate 10 and into the liquid collection box 11. The screen plate 10 is arranged obliquely. Further, a vibrator can be provided below the screen plate 10 to make the slag fall along the screen plate 10 and fall into the cleaning tank 17 of the cleaning and air-drying machine 2. The belt conveyor 15 drives the slag to be conveyed upward. During the conveying process, the water will fall under the action of gravity, and the slag will be further dried by the air duct 22. Then, the electromagnetic separator 3 will absorb the ferromagnetic impurities in the slag. The electromagnetic separator 3 can change the length of the chain rope in the hanger 18 to make the lower end surface of the electromagnetic separator 3 parallel to the belt conveyor 15. The slag after iron removal will be conveyed into the collection box 19. The number of the collection boxes 19 also corresponds to the number of the screens 8, so as to store the slag with different particle sizes. Each time, only the slag within a certain particle size range is sorted. The control valve 20 controls the uniform feeding of the collection box, so that the slag with similar particle sizes is sorted by the eddy current separator 4, thereby improving the sorting quality and the resource utilization rate.

Claims

1. A device for separating refuse incineration slag, characterized in that: It includes a drum screening machine (1), a cleaning and air-drying machine (2), an electromagnetic iron remover (3) and an eddy current separator (4) arranged on the cleaning and air-drying machine (2) in sequence. The drum screening machine (1) includes a frame (5). An outer cylinder (6) is arranged on the frame (5) in an inclined manner. A screen cylinder (7) that can rotate relative to the outer cylinder (6) is arranged inside the outer cylinder (6). Multiple groups of screen meshes (8) with continuously increasing screen hole radii along the material conveying direction are arranged on the screen cylinder (7). A spray pipe (9) is arranged above the screen cylinder (7). A screen plate (10) is arranged below the screen cylinder (7) in an inclined manner. A baffle (13) corresponding to the screen mesh (8) is arranged above the screen plate (10). A liquid collecting box (11) is arranged below the screen plate (10).

2. The waste incineration slag separation device according to claim 1, characterized in that: The number of the cleaning and air-drying machines (2) corresponds to the number of the screen meshes (8).

3. A waste incineration slag separation device according to claim 1, characterized in that: The cleaning and air-drying machine (2) includes a conveyor frame (14) arranged in an inclined manner. A belt conveyor (15) is arranged in the conveyor frame (14). Multiple groups of partitions (16) are arranged on the belt conveyor (15) along the width direction of the belt conveyor (15). An air duct (22) for downward air supply is arranged above the belt conveyor (15). A cleaning pool (17) is arranged at the lower end of the belt conveyor (15). Hangers (18) for fixing the electromagnetic iron remover (3) are arranged on both sides of the belt conveyor (15). The electromagnetic iron remover (3) is arranged at the rear side of the air duct (22). A collection box (19) is arranged at the rear side of the belt conveyor (15).

4. The waste incineration slag separation device according to claim 3, wherein: A control valve (20) for controlling the discharging speed is arranged at the lower end of the collection box (19).

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