Waste gas treatment device for metal smelting

By designing a meshing structure between the motor output shaft and the fan output shaft in the exhaust gas treatment device, the motor and fan can be quickly disassembled and replaced, solving the problem of time-consuming and labor-intensive replacement when the motor fails, and improving maintenance efficiency and device flexibility.

CN223549440UActive Publication Date: 2025-11-14HEFEI FEIHUA MECHANICAL & ELECTRICAL TECH CO LTD
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Patent Information

Application Number
CN202421903714.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-07
Publication Date
2025-11-14
Estimated Expiration
2034-08-07

AI Technical Summary

Technical Problem

In existing waste gas treatment equipment, replacing a motor when it fails is time-consuming and labor-intensive, affecting maintenance efficiency.

Method used

Design a waste gas treatment device for metal smelting, wherein the motor output shaft extends into the induced draft fan, the fan output shaft meshes with the motor output shaft, and is fixed by a top block and a spring, which facilitates quick disassembly and replacement of the motor and the fan.

Benefits of technology

This improves the convenience of motor replacement and maintenance efficiency, reduces operational difficulty, and enhances the flexibility and stability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of waste gas treatment facilities, in particular to a waste gas treatment device for metal smelting, which is characterized in that a fan is fixedly connected inside an induced draft fan, a fan output shaft is fixedly connected at the circle center of the fan, a base is fixedly connected on the surface of the fan output shaft, a spring is fixedly connected inside the base, and the spring is fixedly connected inside the induced draft fan. A top block is fixedly connected to the top end of the spring, a motor is inserted into the tail end of the pipeline, and an insertion hole is formed in the rear end of the surface of an output shaft of the motor. The output shaft of the motor extends into the induced draft fan to drive the fan to rotate to suck waste gas and guide the waste gas to be discharged from the chimney, and then the output shaft of the fan is inserted into the output shaft of the motor and fixed by the top block, so that the whole device is flexibly controlled, the practical performance of the whole device is enhanced, and the practicability of the whole device is improved. The defect that time and labor are wasted when the motor is replaced after the motor is damaged in the existing waste gas treatment process is overcome, and the working efficiency of maintainers is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment facilities, specifically a waste gas treatment device for metal smelting. Background Technology

[0002] Waste gas treatment mainly refers to the treatment of industrial waste gases generated in industrial sites, such as particulate matter, flue gas, odorous gases, and toxic and harmful gases. Common waste gas purification methods include factory flue gas purification, workshop dust gas purification, organic waste gas purification, waste gas odor purification, acid and alkali waste gas purification, and chemical waste gas purification. Waste gases emitted from industrial production often have harmful effects on the environment and human health, so purification measures should be taken before they are discharged into the atmosphere to ensure that they meet the requirements of waste gas emission standards.

[0003] In existing waste gas treatment equipment, the motor used to drive the induced draft fan to divert waste gas has the largest workload and is most prone to damage due to its long-term high-speed operation. When the motor fails, the output shaft of the existing motors mostly extends directly into the inside of the equipment pipes and connects to the induced draft fan. This means that maintenance personnel need to spend a lot of time and effort to disassemble and reassemble the equipment pipes and motor when replacing them, which consumes more working time and is not convenient for immediate replacement. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a waste gas treatment device for metal smelting, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste gas treatment device for metal smelting, comprising a body, a pipe fixedly connected to the surface of the body, an induced draft fan fixedly connected inside the pipe, a fan fixedly connected inside the induced draft fan, a fan output shaft fixedly connected to the center of the fan, a base fixedly connected to the surface of the fan output shaft, a spring fixedly connected inside the base, a top block fixedly connected to the top of the spring, a motor inserted into the end of the pipe, and an insertion hole opened at the rear end of the surface of the motor output shaft.

[0006] As a preferred technical solution of this utility model, a chimney is fixedly connected to the top of the end of the pipe, and the chimney is located behind the motor, which maximizes the control capability of the overall device and ensures the practicality of the overall device.

[0007] As a preferred technical solution of this utility model, the surface of the induced draft fan is provided with an air inlet and an air outlet, and the air inlet and the air outlet correspond to the upper and lower directions of the connection between the end of the pipe and the chimney, which effectively enhances the stability of each component and strengthens the support of the overall device.

[0008] As a preferred technical solution of this utility model, the surface of the fan is fixedly connected with a hinge, and the fan is installed inside the induced draft fan by means of a pivot, which better protects the use of the overall device from being affected and enhances the practicality of operating the overall device.

[0009] As a preferred technical solution of this utility model, a rectangular groove is provided on the surface of the fan output shaft, and the appearance and size of the rectangular groove are meshed with the appearance and size of the motor output shaft, which better enhances the balance of the overall device and effectively enhances the flexibility of the overall device.

[0010] As a preferred technical solution of this utility model, the motor is installed on the outer side of the end of the pipe, and the front end of the motor's output shaft extends into the interior of the pipe, which further enhances the operability of the overall device and ensures its robustness and stability during use.

[0011] As a preferred technical solution of this utility model, the fan output shaft is installed on the back of the center of the fan, and the end length of the fan output shaft extends beyond the back of the blower, which maximizes the operator's control over the overall device, improves the user experience of the overall device, and reduces the difficulty of operation for the operator.

[0012] The beneficial effects of this utility model are:

[0013] This waste gas treatment device for metal smelting extends the output shaft of the motor into the interior of the induced draft fan, driving the fan to rotate and draw in the waste gas, guiding it out of the chimney. The fan output shaft is then inserted into the output shaft of the motor and fixed by a top block, thus achieving flexible control of the entire device. This enhances the practicality of the entire device, improves the shortcomings of existing waste gas treatment processes where motor replacement is time-consuming and laborious, and increases the work efficiency of maintenance personnel. Attached Figure Description

[0014] Figure 1 This is a direct view of the overall appearance and structure of this utility model;

[0015] Figure 2 This is a direct view of the overall structure of the induced draft fan of this utility model;

[0016] Figure 3 This is a direct view of the overall fan structure of this utility model;

[0017] Figure 4 This is a direct view of the overall structure of the fan output shaft of this utility model;

[0018] Figure 5 This is a direct view of the internal cross-section of the base structure of this utility model.

[0019] In the diagram: 1. Body; 2. Pipeline; 3. Chimney; 4. Motor; 5. Exhaust fan; 6. Air inlet; 7. Air outlet; 8. Fan; 9. Hinge; 10. Fan output shaft; 11. Top block; 12. Spring; 13. Base. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] like Figure 1-5 As shown in this embodiment: a waste gas treatment device for metal smelting includes a body 1, a pipe 2 fixedly connected to the surface of the body 1, an induced draft fan 5 fixedly connected inside the pipe 2, a fan 8 fixedly connected inside the induced draft fan 5, the fan 8 being the main component of the induced draft fan 5 to drive the induced draft fan 5 to draw in waste gas and deliver it to the chimney 3 for discharge, a fan output shaft 10 fixedly connected to the center of the fan 8, a base 13 fixedly connected to the surface of the fan output shaft 10, the base 13 being installed on the surface of the fan output shaft 10 to make the fan output shaft 10 mesh with the output shaft of the motor 4, a spring 12 fixedly connected inside the base 13, a top block 11 fixedly connected to the top of the spring 12, a motor 4 being inserted into the end of the pipe 2, and an insertion hole being opened at the rear end of the output shaft surface of the motor 4, the operation of the motor 4 providing power to the induced draft fan 5.

[0023] Furthermore, a chimney 3 is fixedly connected to the top of the end of the pipe 2, and the chimney 3 is located behind the motor 4, through which exhaust gas is discharged.

[0024] Furthermore, the surface of the induced draft fan 5 is provided with an air inlet 6 and an air outlet 7, and the air inlet 6 and the air outlet 7 correspond to the upper and lower directions of the connection between the end of the pipe 2 and the chimney 3, respectively, and the exhaust gas is drawn into the chimney 3 by means of the air inlet 6 and the air outlet 7.

[0025] Furthermore, a hinge 9 is fixedly connected to the surface of the fan 8, and the hinge 9 is used to install the fan 8 inside the induced draft fan 5 by means of a pin. The fan 8 is installed by using the hinge 9 to enhance the stability of the fan 8 inside the induced draft fan 5.

[0026] Furthermore, a rectangular groove is provided on the surface of the fan output shaft 10, and the appearance and size of the rectangular groove correspond to the appearance and size of the output shaft of the motor 4. By meshing the fan output shaft 10 with the output shaft of the motor 4, it is convenient to flexibly and quickly inspect and replace the motor 4.

[0027] Furthermore, the motor 4 is installed on the outer side of the end of the pipe 2, and the front end of the output shaft of the motor 4 extends into the interior of the pipe 2. The motor 4 provides driving force to the fan 8, thereby driving the induced draft fan 5 to guide the exhaust gas.

[0028] Furthermore, the fan output shaft 10 is installed on the back of the center of the fan 8, and the end of the fan output shaft 10 extends beyond the back of the induced draft fan 5. With the drive of the fan output shaft 10, the fan 8 can be flexibly controlled to work inside the induced draft fan 5.

[0029] The usage method of this embodiment is as follows: When using it, please refer to... Figure 1-5 First, the staff needs to manually inspect the motor 4. After confirming the fault, the staff manually presses the top block 11 on the surface of the output shaft of the motor 4, causing the top block 11 to retract into the insertion hole on the surface of the output shaft of the motor 4. Then, the faulty motor 4 is moved backward, thereby disengaging the motor 4 from the fan output shaft 10. Then, the prepared replacement output shaft of the motor 4 is inserted along the original direction, so that the fan output shaft 10 is inserted into the inside of the output shaft of the motor 4. The spring 12 resets the top block 11 to protrude from the insertion hole on the surface of the output shaft of the motor 4, thereby fixing the fan output shaft 10. Then, the motor 4 is started to drive the fan 8 to rotate, so that the induced draft fan 5 can work normally.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A waste gas treatment device for metal smelting, comprising a body (1), characterized in that: The surface of the body (1) is fixedly connected to a pipe (2), the inside of the pipe (2) is fixedly connected to a blower (5), the inside of the blower (5) is fixedly connected to a fan (8), the center of the fan (8) is fixedly connected to a fan output shaft (10), the surface of the fan output shaft (10) is fixedly connected to a base (13), the inside of the base (13) is fixedly connected to a spring (12), the top of the spring (12) is fixedly connected to a top block (11), the end of the pipe (2) is connected to a motor (4), and the rear end of the output shaft of the motor (4) is provided with a socket.

2. The waste gas treatment device for metal smelting according to claim 1, characterized in that: A chimney (3) is fixedly connected to the top of the end of the pipe (2), and the chimney (3) is located behind the motor (4).

3. The waste gas treatment device for metal smelting according to claim 1, characterized in that: The surface of the induced draft fan (5) is provided with an air inlet (6) and an air outlet (7), and the air inlet (6) and the air outlet (7) correspond to the upper and lower directions of the connection between the end of the pipe (2) and the chimney (3).

4. The waste gas treatment device for metal smelting according to claim 1, characterized in that: The surface of the fan (8) is fixedly connected to a hinge (9), and the hinge (9) allows the fan (8) to be installed inside the induced draft fan (5) by means of a pin.

5. The waste gas treatment device for metal smelting according to claim 1, characterized in that: The surface of the fan output shaft (10) is provided with a rectangular groove, and the appearance and size of the rectangular groove are meshed with the appearance and size of the motor (4) output shaft.

6. The waste gas treatment device for metal smelting according to claim 1, characterized in that: The motor (4) is installed on the outside of the end of the pipe (2), and the front end of the output shaft of the motor (4) extends into the interior of the pipe (2).

7. The waste gas treatment device for metal smelting according to claim 1, characterized in that: The fan output shaft (10) is mounted on the back of the center of the fan (8), and the end length of the fan output shaft (10) extends out of the back of the induced draft fan (5).