Micro-fine-particle asbestos recovery device

Abstract

The utility model discloses a micro-fine asbestos recycling device which comprises a suspension bin, an asbestos collector and an air blower, and the top of the suspension bin is communicated with the asbestos collector through a first pipeline; a second pipeline used for conveying materials is arranged on the side wall of the suspension bin, a plurality of material spraying holes are formed in the side wall, located in the suspension bin, of the second pipeline, and an included angle is formed between the center line of each material spraying hole and the center line of an opening in the top of the suspension bin; a third pipeline is arranged on an air outlet of the air blower, the outer end of the third pipeline extends into the suspension bin, a plurality of air outlets are formed in the portion, located in the suspension bin, of the third pipeline, the air outlets face upwards, and the air outlets are located below the material spraying holes. According to the micro-fine-particle asbestos recovery device, the technical problem that environmental pollution is caused due to the fact that short-fiber asbestos material piles containing micro-fine-particle grades exist in a tailing pond is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of comprehensive utilization of tailings, and particularly relates to a device for recovering fine-grained asbestos. Background Art

[0002] Currently, asbestos is typically recovered using flat gyratory or vibrating screens. However, these processes primarily recover coarse, long fibers, while leaving fine, short fibers unrecovered. Recycling the fine, short-fiber asbestos could potentially be used as filler to enhance the heat resistance, fire resistance, and strength of materials, thereby conserving resources. However, in existing technology, this short-fiber asbestos material is typically stored in tailings ponds, causing sandstorms and environmental pollution. Utility Model Content

[0003] In view of the current technical problems, the utility model aims to provide a fine-grained asbestos recovery device, which can solve the technical problem of environmental pollution caused by the accumulation of short-fiber asbestos materials containing fine particles in tailings ponds.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A fine-grained asbestos recovery device has the following structural features: it includes a suspension bin, an asbestos collector and a blower, the top of the suspension bin is connected to the asbestos collector through a first pipe; a second pipe for conveying materials is provided on the side wall of the suspension bin, and a plurality of spray holes are provided on the side wall of the second pipe located in the suspension bin, and an angle is provided between the center line of the spray hole and the center line of the opening at the top of the suspension bin; a third pipe is provided on the air outlet of the blower, the outer end of the third pipe extends into the suspension bin, and a plurality of air outlets are provided on the third pipe located in the suspension bin, the air outlets are directed upward, and the air outlets are located below the spray holes.

[0006] The asbestos material is transported to the suspension bin through the second pipe and ejected through the injection hole. Due to the different air resistances, the fine-grained fibrous asbestos and the granular material in the material are separated in the horizontal direction, with the fine-grained fibrous asbestos close to the middle of the suspension bin, and the granular material close to both sides of the suspension bin. The blower blows air into the suspension bin through the air outlet on the third pipe, and the fine-grained fibrous asbestos enters the asbestos collector under the push of the rising air, while the granular material enters the bottom along the side wall of the suspension bin under the action of gravity, thereby realizing the separation of the fine-grained fibrous asbestos and the granular material. The fine-grained asbestos recovery device of the utility model realizes the horizontal and vertical separation of fine-grained fibrous asbestos and granular material, thereby realizing the recovery of fine-grained short-fiber asbestos in the asbestos material, and reducing the environmental pollution caused by the storage of fine-grained short-fiber asbestos materials in the tailings pond.

[0007] Preferably, the suspension bin is provided with multiple suspension chambers along its length, the tops of each of the multiple suspension chambers being connected to the first pipe. By providing multiple suspension chambers, the asbestos material is divided into multiple portions, and the fine fibrous asbestos and granular material are separated in different suspension chambers, further improving separation efficiency.

[0008] Specifically, the second pipe runs through multiple suspension chambers, and spray holes are provided on the left and right opposite side walls of the second pipe in each suspension chamber. By providing the spray holes on the left and right opposite side walls of the second pipe, the material is sprayed horizontally, thereby improving the horizontal separation efficiency of the material.

[0009] Specifically, a plurality of branch pipes are provided at the end of the third pipe, each of which is provided with an air valve. The outer ends of the branch pipes extend into the suspension chamber, and the outer ends of the branch pipes open upward. By providing the air valves, the flow rate of air entering each suspension chamber can be controlled.

[0010] Specifically, the branch pipes correspond to the suspension chambers one by one.

[0011] Preferably, the branch pipe is located below the injection hole.

[0012] Specifically, the bottom of the suspension bin is connected to the inlet of the first screw conveyor, and a first collecting bin is provided at the outlet of the first screw conveyor. The granular material at the bottom of the suspension bin is transported to the first collecting bin by the first screw conveyor for collection.

[0013] Specifically, the bottom of the asbestos collector is connected to the inlet of the second screw conveyor, and a second collecting bin is provided at the outlet of the second screw conveyor. The fiber asbestos in the asbestos collector is conveyed into the second collecting bin by the second screw conveyor to form a product.

[0014] Preferably, the asbestos collector is connected to the induced draft fan through a pipeline, and the air outlet of the induced draft fan is connected to the chimney.

[0015] Specifically, the second pipeline is connected to the outlet of the delivery pump, and the inlet of the delivery pump is connected to the storage bin.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the fine-grained asbestos recovery device of the present invention realizes the horizontal and vertical separation of fine-grained fiber asbestos and granular materials, thereby realizing the recovery of fine-grained short-fiber asbestos in the asbestos material, and reducing the environmental pollution caused by the storage of fine-grained short-fiber asbestos materials in the tailings pond. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a fine-grained asbestos recovery device of the present utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the middle suspension chamber;

[0019] Figure 3 for Figure 2 Schematic diagram of the top view structure.

[0020] In the figure:

[0021] 1—suspension bin; 101—suspension chamber; 2—asbestos collector; 3—blower; 4—first pipeline; 5—second pipeline; 6—spray hole; 7—third pipeline; 8—air outlet; 9—branch pipe; 10—air valve; 11—first screw conveyor; 12—first collecting bin; 13—second screw conveyor; 14—second collecting bin; 15—induced draft fan; 16—chimney; 17—conveyance pump; 18—storage bin. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments and features of the embodiments of the present invention may be combined unless they conflict. For ease of description, the words "upper," "lower," "left," and "right" appear below merely to indicate the directions of upper, lower, left, and right in the accompanying drawings and do not limit the structure.

[0023] like Figure 1 As shown, the present embodiment provides a fine-grained asbestos recovery device comprising a suspension bin 1, an asbestos collector 2, a blower 3, and a delivery pump 17. The top of the suspension bin 1 is connected to the asbestos collector 2 via a first pipe 4. The inlet end of the delivery pump 17 is connected to a storage bin 18. The outlet end of the delivery pump 17 is provided with a second pipe 5, the outer end of which extends into the suspension bin 1. Figure 2 and Figure 3 As shown, the suspension bin 1 is provided with multiple suspension chambers 101 along its length, and the tops of the multiple suspension chambers 101 are all connected to the first pipe 4. A second pipe 5 runs through the multiple suspension chambers 101, and a spray hole 6 is provided on the left and right opposite side walls of the second pipe 5 located in each suspension chamber 101. A third pipe 7 is provided at the air outlet of the blower 3, and multiple branch pipes 9 are provided at the ends of the third pipe 7. Each branch pipe 7 is equipped with an air valve 10. The air outlet 8 at the outer end of the branch pipe 9 extends into the suspension chamber 101, and the branch pipe 9 is located below the spray hole 6, with the air outlet 8 facing upward. The bottom of the suspension bin 1 is connected to the inlet of the first screw conveyor 11, and a first collection bin 12 is provided at the outlet of the first screw conveyor 11. The bottom of the asbestos collector 2 is connected to the inlet of the second screw conveyor 13, and a second collection bin 14 is provided at the outlet of the second screw conveyor 13. The asbestos collector 2 is connected to the induced draft fan 15 through a pipeline, and the air outlet of the induced draft fan 9 is connected to the chimney 16.

[0024] During operation, a mixture of 50-74 μm fibrous asbestos and granular material is stored in the storage bin 18. This mixture is delivered by the delivery pump 17 to the suspension chamber 101 of the suspension bin 1 and ejected from the ejection holes 6 in the second pipe 5. Due to different air resistances, the 50-74 μm fibrous material is located near the center of the suspension chamber 101, while the granular material is located near the sides of the chamber 101, thereby achieving horizontal separation of the fine fibrous asbestos and granular material. The first blower 3 introduces air into the suspension chamber 101 through the third pipe 7 and branch pipe 9. The rising air propels the fine fibrous asbestos upward into the asbestos collector 2 and, driven by the second screw conveyor 13, into the second collection bin 14. The granular material, under the force of gravity, flows along the sidewalls of the suspension chamber 101 into the first screw conveyor 11 at the bottom. Driven by this, it enters the first collection bin 12, achieving both horizontal and vertical separation of the fine fibrous asbestos and granular material.

[0025] The contents described in the above embodiments should be understood as these embodiments are only used to more clearly illustrate the present invention, and are not used to limit the scope of the present invention. After reading the present invention, various equivalent modifications to the embodiments by those skilled in the art fall within the scope defined by the claims attached to the present invention.

Claims

1. A fine-grained asbestos recovery device, characterized by: It comprises a suspension bin (1), an asbestos collector (2) and a blower (3), wherein the top of the suspension bin (1) is connected to the asbestos collector (2) via a first pipe (4); A second pipe (5) for conveying materials is provided on the side wall of the suspension bin (1), and a plurality of spray holes (6) are provided on the side wall of the second pipe (5) located in the suspension bin (1), and an angle is provided between the center line of the spray hole (6) and the center line of the top opening of the suspension bin (1); A third pipe (7) is provided on the air outlet of the blower (3), the outer end of the third pipe (7) extends into the suspension bin (1), and a plurality of air outlets (8) are provided on the third pipe (7) located in the suspension bin (1), the air outlets (8) are directed upward, and the air outlets (8) are located below the spray hole (6).

2. The fine-grained asbestos recovery device according to claim 1, characterized in that: A plurality of suspension chambers (101) are provided in the suspension bin (1) along the length direction, and the tops of the plurality of suspension chambers (101) are all connected to the first pipe (4).

3. The fine-grained asbestos recovery device according to claim 2, characterized in that: The second pipe (5) passes through a plurality of suspension chambers (101), and spray holes (6) are provided on the left and right opposite side walls of the second pipe (5) in each suspension chamber (101).

4. The fine-grained asbestos recovery device according to claim 2, characterized in that: A plurality of branch pipes (9) are provided at the end of the third pipe (7), each branch pipe (9) is provided with an air valve (10), the outer end of the branch pipe (9) extends into the suspension chamber (101), and the outer end of the branch pipe (9) opens upward.

5. The fine-grained asbestos recovery device according to claim 4, characterized in that: The branch pipes (9) correspond to the suspension chambers (101) one by one.

6. The fine-grained asbestos recovery device according to claim 4, characterized in that: The branch pipe (9) is located below the injection hole (6).

7. The fine-grained asbestos recovery device according to claim 1, characterized in that: The bottom of the suspension bin (1) is connected to the inlet of the first screw conveyor (11), and a first collecting bin (12) is provided at the outlet of the first screw conveyor (11).

8. The fine-grained asbestos recovery device according to claim 1, characterized in that: The bottom of the asbestos collector (2) is connected to the inlet of the second screw conveyor (13), and a second collecting bin (14) is provided at the outlet of the second screw conveyor (13).

9. The fine-grained asbestos recovery device according to claim 1, characterized in that: The asbestos collector (2) is connected to the induced draft fan (15) through a pipeline, and the air outlet of the induced draft fan (15) is connected to the chimney (16).

10. The fine-grained asbestos recovery device according to claim 1, characterized in that: The second pipeline (5) is connected to the outlet of the delivery pump (17), and the inlet of the delivery pump (17) is connected to the storage bin (18).

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