Quenching device for machining rectangular pipe

By designing a device that includes a quenching furnace body, a fume exhaust sleeve, support rollers, a fume exhaust flange, and a welding fume purifier, the problem of harmful gas dispersion during high-temperature quenching of rectangular tubes was solved, and the harmful fumes were purified, ensuring the respiratory safety of workers.

CN224160652UActive Publication Date: 2026-04-24TIANJIN ANJIAN STEEL PIPE MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN ANJIAN STEEL PIPE MANUFACTURING CO LTD
Filing Date
2025-04-10
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

During the high-temperature quenching of rectangular tubes, harmful gases emitted from lubricating grease and metal substances diffuse into the surrounding area of ​​the processing site, affecting the respiratory health of workers.

Method used

A device was designed that includes a quenching furnace body, a fume exhaust sleeve, a support roller, a fume exhaust flange, a welding fume purifier, and a mounting frame. The fume exhaust sleeve and the welding fume purifier purify the fumes generated during the quenching process of rectangular tubes, and the welding fume purifier purifies the rectangular tubes to prevent harmful gases from spreading.

Benefits of technology

It effectively purifies the harmful fumes generated during the quenching process of rectangular tubes, protects the breathing safety of workers, ensures the safety of the surrounding area of ​​the processing site, and solves the problem that harmful gases emitted by the lubricating grease and metal substances on the rectangular tubes during high-temperature quenching can diffuse into the surrounding area, causing respiratory irritation and health hazards to the workers in the vicinity.

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Abstract

The utility model discloses a quenching device for processing a rectangular tube, which comprises a quenching furnace body, smoke discharge sleeves and support rollers, and further comprises smoke discharge flanges, a welding smoke purifier and a mounting frame, the smoke discharge sleeves are arranged at an inlet and an outlet of the quenching furnace body, and the smoke discharge flanges integrated with the smoke discharge sleeves are arranged at the tops of the smoke discharge sleeves; a welding fume purifier is arranged on one side of the quenching furnace body, and the gas inlet end of the welding fume purifier is connected with the fume exhaust flange through a pipeline. A set of quenching mechanism is provided for machining of the rectangular pipe, smoke is collected and purified at the front end and the rear end of the rectangular pipe subjected to quenching treatment in sequence, the situation that a large amount of harmful smoke generated in the high-temperature quenching period of the rectangular pipe drifts away from the periphery of a machining site to affect breathing health of workers is avoided, and the problem that in the high-temperature quenching period of an existing rectangular pipe, the working efficiency is high is solved. And harmful gas volatilized by lubricating grease and metal substances on the rectangular tube volatilizes and drifts away to the periphery of the field, so that the health hazards of respiratory tracts of surrounding workers are stimulated.
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Description

Technical Field

[0001] This utility model relates to the field of rectangular tube processing technology, and in particular to a quenching device for rectangular tube processing. Background Technology

[0002] Quenching is an important way to increase the strength of rectangular tubes. However, during the forming process of rectangular tubes, they undergo multiple drawing processes, which inevitably results in a large amount of grease adhering to the surface of the tubes. At the same time, the rectangular tubes themselves also contain elements such as nickel, chromium, and iron. This causes the rectangular tubes to release harmful gases such as nickel dioxide, chromium dioxide, and ferric oxide during high-temperature quenching, which can affect the respiratory health of the surrounding processing personnel.

[0003] In the current quenching process for rectangular tubes, the tubes are usually slowly heated and fed into a quenching furnace. The harmful gases generated at high temperatures will also be released from the inlet and outlet of the quenching furnace. There is no mechanism to treat the harmful gases generated at high temperatures during this process.

[0004] Existing quenching methods for rectangular tube processing have the following drawbacks: during high-temperature quenching, harmful gases emitted from the lubricating grease and metal substances on the rectangular tubes diffuse into the surrounding area, causing respiratory irritation and health hazards to nearby workers. Therefore, we propose a quenching device for rectangular tube processing. Summary of the Invention

[0005] The main objective of this invention is to provide a quenching device for rectangular tube processing, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A quenching device for rectangular tube processing includes a quenching furnace body, a fume exhaust sleeve, and a support roller. It also includes a fume exhaust flange, a welding fume purifier, and a mounting frame. The inlet and outlet of the quenching furnace body are equipped with fume exhaust sleeves. An integral fume exhaust flange is provided on the top of the fume exhaust sleeve. A welding fume purifier is provided on one side of the quenching furnace body. The air inlet of the welding fume purifier is connected to the fume exhaust flange through a pipe.

[0008] Furthermore, support rollers are provided at equal intervals at the bottom of the smoke exhaust sleeve, and the two ends of the support rollers are rotatably connected to the smoke exhaust sleeve through bearings.

[0009] Furthermore, an installation frame is provided at one end of the exhaust sleeve, and corresponding bolt holes are provided on the periphery of the installation frame and the periphery of the inlet and outlet of the quenching furnace body.

[0010] Furthermore, the mounting frame is connected to the bolt holes of the quenching furnace body by bolts.

[0011] Compared with the prior art, this utility model has the following beneficial effects: by using the components consisting of a quenching furnace body, a fume exhaust sleeve, a support roller, a fume exhaust flange, a welding fume purifier, and an installation frame, a quenching mechanism is provided for the processing of rectangular tubes. By collecting and treating the fumes at the front and rear ends of the rectangular tube quenching process in succession, the fumes are purified, avoiding the large amount of harmful fumes generated during the high-temperature quenching of rectangular tubes from drifting around the processing site and affecting the respiratory health of workers. This solves the problem that during the high-temperature quenching of rectangular tubes, harmful gases emitted from the lubricating grease and metal substances on the rectangular tubes drift around the site, causing respiratory irritation and health hazards to the surrounding workers. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a quenching device for rectangular tube processing according to this utility model.

[0013] Figure 2 This is a schematic diagram of the exhaust sleeve structure of a quenching device for rectangular tube processing according to this utility model.

[0014] Figure 3 This is a schematic diagram of the quenching furnace body of a quenching device for rectangular tube processing according to this utility model.

[0015] In the diagram: 1. Quenching furnace body; 2. Exhaust sleeve; 3. Welding fume purifier; 4. Exhaust flange; 5. Support roller; 6. Mounting frame; 7. Bolt holes. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figure 1-3 As shown, a quenching device for rectangular tube processing includes a quenching furnace body 1, a fume exhaust sleeve 2, and a support roller 5. It also includes a fume exhaust flange 4, a welding fume purifier 3, and a mounting frame 6. The inlet and outlet of the quenching furnace body 1 are provided with fume exhaust sleeves 2. The top of the fume exhaust sleeve 2 is provided with an integral fume exhaust flange 4. The welding fume purifier 3 is provided on one side of the quenching furnace body 1. The air inlet of the welding fume purifier 3 is connected to the fume exhaust flange 4 through a pipe.

[0018] The smoke exhaust sleeve 2 is provided with support rollers 5 at equal intervals at the bottom. The two ends of the support rollers 5 are rotatably connected to the smoke exhaust sleeve 2 through bearings.

[0019] The exhaust sleeve 2 is provided with a mounting frame 6 at one end, and corresponding bolt holes 7 are provided on the periphery of the mounting frame 6 and the periphery of the inlet and outlet of the quenching furnace body 1.

[0020] The mounting frame 6 is connected to the bolt holes 7 of the quenching furnace body 1 by bolts.

[0021] It should be noted that this utility model is a quenching device for rectangular tube processing. During operation, personnel successively install the exhaust sleeve 2 onto the inlet and outlet of the quenching furnace body 1, so that the rectangular tube quenched inside the quenching furnace body 1 can pass through the exhaust sleeve 2. At the same time, the support roller 5 inside the exhaust sleeve 2 provides auxiliary support for the rectangular tube. During the high-temperature treatment of the rectangular tube by the quenching furnace body 1, the welding fume purifier 3 draws the exhaust sleeve 2 to remove the harmful fumes emitted by the high-temperature treated rectangular tube, thereby reducing the harmful gases' impact on the surrounding environment and ensuring the respiratory safety of workers around the rectangular tube during the quenching process.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quenching device for rectangular tube processing, comprising a quenching furnace body (1), a smoke exhaust sleeve (2), and a support roller (5), characterized in that, It also includes a fume exhaust flange (4), a welding fume purifier (3) and a mounting frame (6). The inlet and outlet of the quenching furnace body (1) are equipped with fume exhaust sleeves (2). The top of the fume exhaust sleeve (2) is equipped with an integral fume exhaust flange (4). The side of the quenching furnace body (1) is equipped with a welding fume purifier (3). The air inlet of the welding fume purifier (3) is connected to the fume exhaust flange (4) through a pipe.

2. The quenching device for rectangular tube processing according to claim 1, characterized in that: The bottom of the exhaust sleeve (2) is provided with support rollers (5) at equal intervals. The two ends of the support rollers (5) are rotatably connected to the exhaust sleeve (2) through bearings.

3. The quenching device for rectangular tube processing according to claim 1, characterized in that: The exhaust sleeve (2) is provided with an installation frame (6) at one end, and corresponding bolt holes (7) are provided on the periphery of the installation frame (6) and the periphery of the inlet and outlet of the quenching furnace body (1).

4. The quenching device for rectangular tube processing according to claim 3, characterized in that: The mounting frame (6) is connected to the bolt holes (7) of the quenching furnace body (1) by bolts.