Smoke dust negative pressure recovery system of hot-dip galvanizing pot

By using a lifting docking mechanism and liquid absorption chemical treatment, the problems of complex discharge and insufficient treatment in the hot-dip galvanizing pan dust recovery system have been solved, achieving efficient and environmentally friendly dust recovery.

CN224156596UActive Publication Date: 2026-04-24CHENGDU TOWER PLANT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU TOWER PLANT
Filing Date
2025-05-23
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing negative pressure dust recovery system for hot-dip galvanizing pots is complicated in terms of discharge operation, which affects efficiency, and the dust treatment is insufficient and prone to leakage.

Method used

The lifting and docking mechanism, consisting of a U-shaped fixed frame, lifting guide rail, reversible motor, vertical screw, lifting slider, U-shaped mounting frame, heater and negative pressure cylinder, enables docking of the pot body and negative pressure cylinder to recover smoke and dust, and treats the smoke and dust through liquid absorption and chemical treatment.

Benefits of technology

It improves the efficiency of dust recovery, facilitates material feeding and discharging, ensures thorough and efficient processing, prevents dust leakage, and is beneficial to environmental protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a smoke dust negative pressure recovery system of a hot-dip galvanizing pot, which comprises a fixed bottom plate, the upper surface of the fixed bottom plate is fixedly connected with a U-shaped fixed frame and a smoke dust treatment tank, the inner walls of the left side and the right side of the U-shaped fixed frame are fixedly connected with negative pressure cylinders, the negative pressure cylinders are internally sleeved with blowers, and the blowers are fixedly connected with the U-shaped fixed frame. The blower is located at the upper end of the negative pressure cylinder, the side end of the negative pressure cylinder is sleeved with an exhaust fan, and the exhaust fan is communicated with the smoke dust treatment tank through a flue; a lifting butt joint mechanism is composed of a U-shaped fixing frame, a lifting guide rail, a reversible motor, a vertical screw rod, a lifting sliding block, a U-shaped mounting frame, a heater, a pot body and a negative pressure cylinder, when smoke dust is generated, the pot body can be lifted, the pot body and the negative pressure cylinder are in butt joint to recycle the smoke dust, meanwhile, heat dissipation can be conducted on the pot body, feeding and discharging are convenient, and efficiency is improved; the smoke dust is subjected to absorption type recovery through liquid, chemical treatment is carried out, the treatment process is sufficient and efficient, smoke dust leakage is prevented, and environmental protection is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of flue gas recovery technology, and in particular to a negative pressure flue gas recovery system for hot-dip galvanizing pots. Background Technology

[0002] Existing negative pressure dust recovery systems for hot-dip galvanizing boilers suffer from complex discharge operations during dust recovery, impacting efficiency and resulting in insufficient dust treatment, potentially leading to dust leakage. A Chinese patent discloses an "Industrial Furnace Recyclable Dust Recovery and Purification Device" (application number CN202221338119.6). This device uses first and second bolts to install first and second fixing plates onto the front and rear side walls of the exhaust duct, allowing for quick assembly and disassembly and facilitating device recovery. A handle drives a rotating shaft, which in turn rotates a baffle plate, switching the airflow direction within the purification chamber. The filter plates purify the large amounts of dust generated by the industrial furnace, preventing environmental pollution. The top cover facilitates filter plate replacement. However, the recovery components of this device interfere with the feeding and discharging operations, making feeding and discharging inconvenient, and the dust recovery and treatment are insufficient. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a negative pressure recovery system for the flue gas of a hot-dip galvanizing pot. The system comprises a lifting and docking mechanism consisting of a U-shaped fixing frame, a lifting guide rail, a reversible motor, a vertical screw, a lifting slider, a U-shaped mounting frame, a heater, a pot body, and a negative pressure cylinder. When flue gas is generated, the pot body can be raised to dock with the negative pressure cylinder for flue gas recovery. Simultaneously, the pot body can be cooled, and material loading and unloading are convenient, improving efficiency. The system uses liquid to absorb and recover the flue gas, followed by chemical treatment. The treatment process is thorough and efficient, preventing flue gas leakage and contributing to environmental protection.

[0004] This utility model also provides a negative pressure dust recovery system for a hot-dip galvanizing pot, comprising: a fixed base plate, on the upper surface of which a U-shaped fixing frame and a dust treatment tank are fixedly connected; a negative pressure cylinder is fixedly connected to the inner walls of the left and right sides of the U-shaped fixing frame; a blower is sleeved inside the negative pressure cylinder and located at the upper end of the negative pressure cylinder; an exhaust fan is sleeved at the side end of the negative pressure cylinder and connected to the dust treatment tank via a flue; and a lifting guide rail, fixedly connected to the inner walls of the left and right sides of the U-shaped fixing frame; a reversible motor is fixedly connected inside the lifting guide rail and located at the lower end of the lifting guide rail; a vertical screw is fixedly connected to the output end of the reversible motor; a lifting slider is threadedly connected to the vertical screw; a U-shaped mounting frame is fixedly connected to the lifting slider; a heater is fixedly connected to the lower inner wall of the U-shaped mounting frame; a pot body is fixedly connected to the upper end of the heater and the pot body is sleeved outside the negative pressure cylinder.

[0005] According to the present invention, a negative pressure dust recovery system for a hot-dip galvanizing pan includes casters fixedly connected to the lower surface of the fixed base plate, with the casters located at the four corners of the fixed base plate. This facilitates movement and improves ease of use.

[0006] According to the present invention, a negative pressure dust recovery system for a hot-dip galvanizing pan includes a U-shaped fixing frame with mounting plates bolted to both its left and right sides, and a handle fixedly attached to the front surface of each mounting plate. This facilitates movement and improves ease of use.

[0007] According to the present invention, a negative pressure dust recovery system for a hot-dip galvanizing pan includes a first liquid pump and a processing liquid tank fixedly connected to the upper surface of a fixed base plate. A first tank cover is provided at the upper end of the processing liquid tank. The input end of the first liquid pump is connected to the processing liquid tank, and the output end of the first liquid pump is connected to the dust treatment tank. This facilitates the recovery and treatment of dust.

[0008] According to the present invention, a negative pressure dust recovery system for a hot-dip galvanizing pan includes a second liquid pump and a collection tank fixedly connected to the upper surface of a fixed base plate. A second tank cover is provided at the upper end of the collection tank. The input end of the second liquid pump is connected to a dust treatment tank, and the output end of the second liquid pump is connected to the collection tank. This facilitates the recovery and treatment of dust.

[0009] According to the present invention, a negative pressure dust recovery system for a hot-dip galvanizing pan includes a lifting guide rail whose lower end is fixedly connected to the lower inner wall of a U-shaped fixing frame. Vertical grooves are provided on both the left and right inner walls of the lifting guide rail. This facilitates the limiting installation of the lifting slider.

[0010] According to the present invention, a negative pressure dust recovery system for a hot-dip galvanizing pan includes a vertical sliding rod fixedly connected to both the left and right surfaces of the lifting slider, which slides within a vertical groove. This facilitates the stable lifting and lowering of the lifting slider.

[0011] According to the present invention, a negative pressure dust recovery system for a hot-dip galvanizing pot includes a limiting frame fixedly connected to the inner side wall of the pot body, the limiting frame abutting against the lower end of the negative pressure cylinder. This design makes the structure compact and stable, and improves sealing performance.

[0012] Beneficial effects:

[0013] 1. Compared with the existing technology, the dust negative pressure recovery system of the hot-dip galvanizing pot consists of a lifting docking mechanism composed of a U-shaped fixed frame, lifting guide rail, reversible motor, vertical screw, lifting slider, U-shaped mounting frame, heater, pot body and negative pressure cylinder. When dust is generated, the pot body can be lifted to dock with the negative pressure cylinder to recover the dust. At the same time, the pot body can be cooled. The feeding and discharging of materials is convenient and the efficiency is improved.

[0014] 2. Compared with existing technologies, this negative pressure dust recovery system for hot-dip galvanizing pots recovers dust through liquid absorption and chemical treatment. The treatment process is thorough and efficient, prevents dust leakage, and is beneficial to environmental protection. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a negative pressure dust recovery system for a hot-dip galvanizing pot according to the present invention.

[0017] Figure 2 This is a top view schematic diagram of the negative pressure recovery system for flue gas from a hot-dip galvanizing pot according to the present invention.

[0018] Figure 3 This is a schematic diagram of the transverse three-dimensional cross-sectional structure of a negative pressure dust recovery system for a hot-dip galvanizing pot according to the present invention.

[0019] Figure 4 This is a longitudinal three-dimensional cross-sectional structural diagram of a negative pressure dust recovery system for a hot-dip galvanizing pot according to the present invention.

[0020] Legend:

[0021] 1. Fixed base plate; 2. Second tank cover; 3. Collection tank; 4. Second liquid pump; 5. Limiting frame; 6. Dust treatment tank; 7. First liquid pump; 8. Vertical chute; 9. Treatment liquid tank; 10. First tank cover; 11. Flue; 12. Exhaust fan; 13. Heater; 14. Pot body; 15. Blower; 16. Negative pressure cylinder; 17. U-shaped mounting bracket; 18. Bolt; 19. Mounting plate; 20. Handle; 21. U-shaped fixing bracket; 22. Casters; 23. Lifting guide rail; 24. Reversible motor; 25. Vertical screw; 26. Lifting slider; 27. Vertical slide bar. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1 , Figure 3 and Figure 4This utility model discloses a negative pressure dust recovery system for a hot-dip galvanizing pan, comprising a fixed base plate 1. Casters 22 are fixedly connected to the lower surface of the fixed base plate 1, located at the four corners of the fixed base plate 1. A U-shaped fixing frame 21 and a dust treatment tank 6 are fixedly connected to the upper surface of the fixed base plate 1. Mounting plates 19 are fixedly connected to the left and right sides of the U-shaped fixing frame 21 via bolts 18. A handle 20 is fixedly connected to the front surface of the mounting plate 19. Negative pressure cylinders 16 are fixedly connected to the inner walls of the left and right sides of the U-shaped fixing frame 21. A blower 15 is sleeved inside the negative pressure cylinder 16. The blower 15 is located within the negative pressure cylinder 16. At the upper end, a blower 12 is sleeved on the side of the negative pressure cylinder 16. The blower 12 is connected to the dust treatment tank 6 through the flue 11. A first liquid pump 7 and a treatment liquid tank 9 are fixedly connected to the upper surface of the fixed base plate 1. A first tank cover 10 is provided at the upper end of the treatment liquid tank 9. The input end of the first liquid pump 7 is connected to the treatment liquid tank 9, and the output end of the first liquid pump 7 is connected to the dust treatment tank 6. A second liquid pump 4 and a collection tank 3 are fixedly connected to the upper surface of the fixed base plate 1. A second tank cover 2 is provided at the upper end of the collection tank 3. The input end of the second liquid pump 4 is connected to the dust treatment tank 6, and the output end of the second liquid pump 4 is connected to the collection tank 3.

[0024] Specifically, during the dust recovery process, the lifting guide rail 23 will lift the pot body 14, so that the pot body 14 will be in a docking state with the negative pressure cylinder 16. The exhaust fan 12 will draw air to put the negative pressure cylinder 16 into a negative pressure state. The dust generated by the pot body 14 will be transported to the dust treatment tank 6 through the exhaust fan 12 and the flue 11 and absorbed by the liquid. The first liquid pump 7 will transport the treatment liquid to the dust treatment tank 6 to treat the liquid after absorbing the dust. The second liquid pump 4 will transport the treated liquid to the collection tank 3. After the dust recovery treatment is completed, the blower 15 can blow air to cool the pot body 14 to facilitate subsequent material discharge.

[0025] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4The lifting guide rail 23 is fixedly connected to the inner walls of the left and right sides of the U-shaped fixing frame 21. The lower end of the lifting guide rail 23 is fixedly connected to the lower inner wall of the U-shaped fixing frame 21. Vertical grooves 8 are provided on both the left and right inner walls of the lifting guide rail 23. A reversible motor 24 is fixedly connected inside the lifting guide rail 23. The reversible motor 24 is located at the lower end of the lifting guide rail 23. A vertical screw 25 is fixedly connected to the output end of the reversible motor 24. The vertical screw 25 is threadedly connected to a lifting mechanism. The lifting slider 26 has vertical slide rods 27 fixedly connected to both its left and right sides. The vertical slide rods 27 slide within the vertical slide groove 8. The lifting slider 26 is fixedly connected to a U-shaped mounting bracket 17. A heater 13 is fixedly connected to the lower inner wall of the U-shaped mounting bracket 17. A pot body 14 is fixedly connected to the upper end of the heater 13. The pot body 14 is fitted onto the outside of the negative pressure cylinder 16. A limit frame 5 is fixedly connected to the inner side wall of the pot body 14. The limit frame 5 abuts against the lower end of the negative pressure cylinder 16.

[0026] Specifically, after the dust collection is completed, the docking state between the pot body 14 and the negative pressure cylinder 16 will be released. The reversible motor 24 of the lifting guide rail 23 will drive the vertical screw 25 to rotate in the opposite direction. The vertical screw 25 will drive the lifting slider 26 to move downward. The lifting slider 26 will drive the U-shaped mounting bracket 17 to move downward, which in turn will drive the pot body 14 to move downward, making it easier to discharge materials.

[0027] Working principle: The negative pressure recovery system of the hot-dip galvanizing pot is used to recover and treat the fumes generated by the hot-dip galvanizing pot. The lifting guide rail 23 will drive the pot body 14 to rise, so that the pot body 14 is in a docking state with the negative pressure cylinder 16. The fumes generated by the pot body 14 will be recovered into the fume treatment tank 6 for treatment. After the fume treatment is completed, the blower 15 will dissipate heat from the pot body 14, and the lifting guide rail 23 will drive the pot body 14 to the bottom of the U-shaped fixed frame 21 for easy discharge.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A negative pressure dust recovery system for a hot-dip galvanizing pan, characterized in that, include: A fixed base plate (1) is fixedly connected to a U-shaped fixing frame (21) and a dust treatment tank (6) on its upper surface. A negative pressure cylinder (16) is fixedly connected to the inner walls of the left and right sides of the U-shaped fixing frame (21). A blower (15) is sleeved inside the negative pressure cylinder (16). The blower (15) is located at the upper end of the negative pressure cylinder (16). An exhaust fan (12) is sleeved on the side end of the negative pressure cylinder (16). The exhaust fan (12) is connected to the dust treatment tank (6) through a flue (11). A lifting guide rail (23) is fixedly connected to the inner walls of the left and right sides of the U-shaped fixing frame (21). A reversible motor (24) is fixedly connected inside the lifting guide rail (23). The reversible motor (24) is located at the lower end of the lifting guide rail (23). A vertical screw (25) is fixedly connected to the output end of the reversible motor (24). A lifting slider (26) is threadedly connected to the vertical screw (25). A U-shaped mounting frame (17) is fixedly connected to the lifting slider (26). A heater (13) is fixedly connected to the lower inner wall of the U-shaped mounting frame (17). A pot body (14) is fixedly connected to the upper end of the heater (13). The pot body (14) is sleeved on the outside of the negative pressure cylinder (16).

2. The negative pressure dust recovery system for a hot-dip galvanizing pan according to claim 1, characterized in that, Casters (22) are fixedly connected to the lower surface of the fixed base plate (1), and the casters (22) are located at the four corners of the fixed base plate (1).

3. The negative pressure dust recovery system for a hot-dip galvanizing pan according to claim 1, characterized in that, The left and right sides of the U-shaped bracket (21) are fixedly connected to mounting plates (19) by bolts (18), and the front surface of the mounting plate (19) is fixedly connected to a handle (20).

4. The negative pressure dust recovery system for a hot-dip galvanizing pan according to claim 1, characterized in that, The upper surface of the fixed base plate (1) is fixedly connected to a first liquid pump (7) and a treatment liquid tank (9). The upper end of the treatment liquid tank (9) is provided with a first tank cover (10). The input end of the first liquid pump (7) is connected to the treatment liquid tank (9), and the output end of the first liquid pump (7) is connected to the dust treatment tank (6).

5. The negative pressure dust recovery system for a hot-dip galvanizing pan according to claim 1, characterized in that, The upper surface of the fixed base plate (1) is fixedly connected to a second liquid pump (4) and a collection tank (3). The upper end of the collection tank (3) is provided with a second tank cover (2). The input end of the second liquid pump (4) is connected to the dust treatment tank (6), and the output end of the second liquid pump (4) is connected to the collection tank (3).

6. The negative pressure dust recovery system for a hot-dip galvanizing pan according to claim 1, characterized in that, The lower end of the lifting guide rail (23) is fixedly connected to the lower inner wall of the U-shaped fixing frame (21), and vertical sliding grooves (8) are provided on the left and right inner walls of the lifting guide rail (23).

7. The negative pressure dust recovery system for a hot-dip galvanizing pan according to claim 1, characterized in that, The left and right sides of the lifting slider (26) are fixedly connected with vertical slide rods (27), which slide within the vertical slide groove (8).

8. The negative pressure dust recovery system for a hot-dip galvanizing pan according to claim 1, characterized in that, A limiting frame (5) is fixedly connected to the inner side wall of the pot body (14), and the limiting frame (5) abuts against the lower end of the negative pressure cylinder (16).

Citation Information

Patent Citations

  • Recyclable smoke dust recycling and purifying device for industrial furnace

    CN218011703U