Waste gas recovery and treatment device for electric wire and cable extruding machine

Abstract

The utility model discloses an electric wire and cable plastic extruding machine waste gas recovery and treatment device which comprises a plastic extruding machine body and an exhaust pipe, the exhaust pipe is arranged at the tail end of the plastic extruding machine body, the electric wire and cable plastic extruding machine waste gas recovery and treatment device further comprises a guide pipe, a tail pipe and a supporting frame, the guide pipe is composed of two pipelines, and a merging pipe is arranged at the tail ends of the two guide pipes. According to the waste gas recovery and treatment device for the electric wire and cable plastic extruding machine, the extrusion pad seals the exhaust pipe, meanwhile, the interior of the other guide pipe is cleaned, waste gas enters the tail pipe after passing through the guide pipe and is finally discharged into the reaction tank to be treated, and when the guide pipe which is discharging the waste gas needs to be cleaned, the waste gas is discharged into the tail pipe through the extrusion pad. The first-stage sealing valve is temporarily closed, the second-stage sealing valve on the corresponding guide pipe is opened or closed, then the merging pipe is turned over on the supporting frame, one guide pipe is replaced to be in butt joint with the exhaust pipe, and waste gas is exhausted after the first-stage sealing valve is opened.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, and particularly relates to an exhaust gas recovery and treatment device for a wire and cable extruder. Background Technique

[0002] An extruder is a device used for plastic processing. It heats plastic raw materials to a molten state and then pushes the molten plastic into a mold through the rotation of a screw to form the desired shape.

[0003] During the operation of the existing extruder, exhaust gas will be generated. In order to reduce environmental pollution, the exhaust gas generated by the extruder is recovered and guided into an exhaust gas treatment pool to reduce harmful substances in the exhaust gas.

[0004] However, it is found during the process of exhaust gas recovery and treatment that the long-term emission of exhaust gas will generate a lot of volatile organic compounds such as polyethylene, polypropylene, and polyvinyl chloride, etc., which adhere to the pipeline. It is necessary to regularly clean the exhaust gas pipeline. However, the extruder cannot stop working for a long time to wait for cleaning, which leads to a conflict in the cleaning work of the exhaust gas recovery pipeline. Content of the Utility Model

[0005] The purpose of the utility model is to provide an exhaust gas recovery and treatment device for a wire and cable extruder, so as to solve the problem that the exhaust gas pipeline needs to be regularly cleaned, but the extruder cannot stop working for a long time to wait for cleaning, which leads to a conflict in the cleaning work of the exhaust gas recovery pipeline as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An exhaust gas recovery and treatment device for a wire and cable extruder, including an extruder body and an exhaust pipe. An exhaust pipe is provided at the end of the extruder body. It also includes a guiding pipe, a tail pipe, and a support frame. The guiding pipe is composed of two pipes in total, and a merging pipe is provided at the ends of the two guiding pipes. The merging pipe is in communication with both guiding pipes. The merging pipe at the end of the guiding pipe is rotatably connected to the tail pipe, and a support frame is provided outside the merging pipe at the end of the guiding pipe;

[0007] A corrugated pipe is provided at the front end of the guiding pipe;

[0008] Secondary sealing valves are provided at the ends of both guiding pipes, and the two secondary sealing valves are respectively located on both sides of the merging pipe.

[0009] Preferably, a primary sealing valve is provided on the exhaust pipe.

[0010] Preferably, the end of the tail pipe is inserted into a reaction pool.

[0011] Preferably, an extrusion pad is provided inside the guiding tube at the front end of the corrugated tube, and the portion of the extrusion pad close to the orifice of the guiding tube is inclined outward.

[0012] Preferably, a sealing cover is provided at the front end of the guiding tube, and the sealing cover is threadedly connected to the guiding tube.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] For the waste gas recovery and treatment device of a wire and cable extrusion machine of the present utility model, the waste gas generated by the exhaust pipe is discharged into the tail pipe through the guiding tube. However, when there is too much organic volatile matter remaining in the guiding tube due to the discharge of waste gas and it needs to be cleaned, the exhaust pipe is briefly closed, and another guiding tube is docked with the exhaust pipe for waste gas discharge. It is possible to regularly clean the pipeline of the guiding tube without delaying the operation of the extrusion machine body and the waste gas discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0016] Figure 2 is an enlarged view of the guiding tube of the present utility model;

[0017] Figure 3 is a cross-sectional view of the guiding tube of the present utility model.

[0018] In the figure: 1, extrusion machine body; 2, exhaust pipe; 21, primary sealing valve; 3, guiding tube; 31, corrugated tube; 32, secondary sealing valve; 33, extrusion pad; 4, tail pipe; 5, support frame; 6, reaction tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-3, An exhaust gas recovery and treatment device for a wire and cable extruder, including an extruder body 1 and an exhaust pipe 2. The exhaust pipe 2 is provided at the end of the extruder body 1. It also includes a guiding pipe 3, a tail pipe 4 and a support frame 5. The guiding pipe 3 is composed of two pipes in total, and the ends of the two guiding pipes 3 are provided with a merging pipe. The merging pipe is interconnected with both guiding pipes 3. There is a rotational connection between the merging pipe at the end of the guiding pipe 3 and the tail pipe 4. A support frame 5 is provided outside the merging pipe at the end of the guiding pipe 3. The merging pipe can be flipped on the support frame 5. A corrugated pipe 31 is provided at the front end of the guiding pipe 3. By stretching the corrugated pipe 31 on one of the guiding pipes 3, the exhaust pipe 2 can enter the guiding pipe 3. Secondary sealing valves 32 are provided at the ends of both guiding pipes 3. The two secondary sealing valves 32 are respectively located on both sides of the merging pipe. The secondary sealing valves 32 on the guiding pipes 3 can seal their respective guiding pipes 3.

[0021] Furthermore, a primary sealing valve 21 is provided on the exhaust pipe 2. The primary sealing valve 21 can seal the exhaust pipe 2.

[0022] Furthermore, the end of the tail pipe 4 is inserted into a reaction tank 6, and the reaction tank 6 treats the exhaust gas.

[0023] Furthermore, an extrusion pad 33 is provided inside the guiding pipe 3 at the front end of the corrugated pipe 31. The extrusion pad 33 is inclined outward near the pipe orifice of the guiding pipe 3. The exhaust pipe 2 is inserted into the guiding pipe 3, and the extrusion pad 33 seals the exhaust pipe 2.

[0024] Furthermore, a sealing cover is provided at the front end of the guiding pipe 3. The sealing cover is threadedly connected to the guiding pipe 3. When the other guiding pipe 3 is no longer in use, the guiding pipe 3 is sealed with the sealing cover.

[0025] Working principle: For an exhaust gas recovery and treatment device of a wire and cable extruder of the present utility model, during use, the exhaust gas generated by the extruder body 1 is discharged from the exhaust pipe 2. By stretching the corrugated pipe 31 on one of the guiding pipes 3, the exhaust pipe 2 enters the guiding pipe 3. The extrusion pad 33 seals the exhaust pipe 2 and simultaneously cleans the inside of the other guiding pipe 3. The exhaust gas enters the tail pipe 4 after passing through the guiding pipe 3 and is finally discharged into the reaction tank 6 for treatment. When it is necessary to clean the pipeline of the guiding pipe 3 that is discharging exhaust gas, the primary sealing valve 21 is temporarily closed, the secondary sealing valve 32 on the corresponding guiding pipe 3 is opened or closed, and then the merging pipe is flipped on the support frame 5 to replace a guiding pipe 3 to dock with the exhaust pipe 2. After opening the primary sealing valve 21, the exhaust gas is discharged.

[0026] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A waste gas recovery and treatment device for a wire and cable extruder, comprising an extruder body (1) and an exhaust pipe (2), wherein the exhaust pipe (2) is provided at the end of the extruder body (1), characterized in that: It also comprises a guide pipe (3), a tail pipe (4) and a support frame (5), wherein the guide pipe (3) is composed of two pipes, and a merging pipe is provided at the ends of the two guide pipes (3), the merging pipe and the two guide pipes (3) are mutually connected, the merging pipe at the ends of the guide pipes (3) is rotatably connected to the tail pipe (4), and a support frame (5) is provided on the outside of the merging pipe at the ends of the guide pipes (3); The front end of the guide tube (3) is provided with a bellows (31); A secondary sealing valve (32) is provided at the end of each of the two guide pipes (3), and the two secondary sealing valves (32) are respectively located on both sides of the combined pipe.

2. The waste gas recovery and treatment device for a wire and cable extruder according to claim 1, characterized in that: The exhaust pipe (2) is provided with a primary sealing valve (21).

3. The waste gas recovery and treatment device for a wire and cable extruder according to claim 1, characterized in that: The end of the tail pipe (4) is inserted into the reaction tank (6).

4. The waste gas recovery and treatment device for a wire and cable extruder according to claim 1, characterized in that: A pressing pad (33) is provided on the inner side of the guide tube (3) at the front end of the corrugated tube (31), and the portion of the pressing pad (33) close to the tube opening of the guide tube (3) is inclined outwards.

5. The waste gas recovery and treatment device for a wire and cable extruder according to claim 1, characterized in that: A sealing cover is provided at the front end of the guide tube (3), and the sealing cover is threadedly connected to the guide tube (3).

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