Zinc smoke blocking air curtain device for hot galvanizing hanger

Abstract

The utility model discloses a zinc smoke blocking air curtain device for a hot galvanizing hanger, and relates to the technical field of hot galvanizing. Comprising a hanger body and an air curtain generation mechanism, the air curtain generating mechanism is composed of an air inlet, a pipeline locking valve, an air main pipe, air branch pipes, air outlets and a guide opening, the pipeline locking valve is connected with an external compressed air pipeline, the tail end of the air main pipe is connected with the two air branch pipes, the air branch pipes are hollow square pipes, and the air outlets are evenly formed in the air branch pipes in the length direction. And a guide port forming a 60-degree included angle with the horizontal plane is welded outside the air outlet. The hanger body comprises a cross beam, a longitudinal beam, a hook and a lifting lug, and the air curtain generating mechanism is welded to the cross beam of the hanger. Compressed air is sprayed out from the guide port through the branch pipe to form a directional air curtain, and zinc smoke is inhibited from rising and guided to the edge of the zinc pot. Through the integrated design of the hanging tool and the air curtain mechanism, the problems that a traditional exhaust fume collecting hood is high in power consumption and insufficient in coverage are solved, and the exhaust fume collecting hood has the advantages of being high in fume blocking efficiency and convenient to disassemble and assemble and is suitable for hot galvanizing zinc fume treatment.

Description

Technical Field

[0001] This utility model relates to the field of hot-dip galvanizing technology, specifically to an air curtain generating device for suppressing the diffusion of zinc fumes. Background Technology

[0002] In the hot-dip galvanizing industry, the zinc fumes generated during the zinc bath process not only pollute the environment but also pose health hazards to operators. Traditional zinc fume treatment methods mainly include:

[0003] Fixed fume hood collection: A fume hood is installed above the zinc pot to collect and treat the zinc fumes. However, this method requires an additional fixed hood motor, which has disadvantages such as high power consumption and large footprint.

[0004] Mobile fume hood collection: A fume hood is fixedly installed on a crane and moves with the crane to collect zinc fumes for treatment. However, this method has disadvantages such as the fume hood not being able to dynamically cover the zinc fume source with the mounting brackets, turbulent airflow, resulting in low collection efficiency and a large equipment footprint. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems in the prior art by integrating an air curtain generating mechanism on the hanger body and actively forming a directional air curtain with compressed air, thereby suppressing the rise of zinc fumes from the source.

[0006] The technical solution of this utility model is as follows:

[0007] A zinc fume barrier air curtain device for hangers used in the hot-dip galvanizing industry is characterized in that: the zinc fume barrier air curtain device includes an air curtain generating mechanism and a hanger body; the air curtain generating mechanism is welded and fixed to the outer side of the hanger crossbeam; the end of the air curtain generating mechanism is an air inlet; the air inlet is connected to a pipe locking valve for locking the pipe when connected to an external compressed air pipeline; the pipe locking valve includes a mechanically driven snap-fit ​​component, a sealing ring, and a quick connector; the snap-fit ​​component is connected to the air inlet flange; the sealing ring is disposed on the connection end face for achieving pneumatic sealing and locking with the external compressed air pipeline; the end of the pipe locking valve is connected to the main air pipe; the end of the main air pipe is connected to two branch air pipes for dispersing and conveying compressed air; the branch air pipes are provided with multiple evenly distributed air outlets; the air outlets are provided with guide ports for evenly spraying compressed air to form an air curtain;

[0008] Furthermore, the air curtain generating mechanism includes an air inlet, a pipe locking valve, a main air pipe, air branch pipes, an air outlet, and a guide port. The air branch pipe is a hollow, elongated square tube with air outlets evenly distributed along its length on one side, forming an internal air duct. The air inlet is located at one end of the pipe locking valve and connected to the air supply system. The air outlets are located on the outer side of the air branch pipe and distributed along its length. The guide port is located outside the air outlet and is used to guide the airflow evenly out of the outlet, forming an air curtain structure.

[0009] Furthermore, the hanging fixture body includes a hanging fixture crossbeam, a hanging fixture longitudinal beam, hooks, and lifting lugs. The hanging fixture crossbeam has evenly spaced holes, and the hooks pass through the holes and are bolted to the hanging fixture crossbeam for fixation. The bottom of the hanging fixture longitudinal beam is connected to the hanging fixture crossbeam, and both sides are connected to the air branch pipes of the air curtain generating mechanism. The hooks are bolted to the hanging fixture crossbeam. The lifting lugs are welded to the hanging fixture longitudinal beam for lifting the hanging fixture.

[0010] Furthermore, the air branch pipe is a hollow square tube with air outlets evenly distributed along its length on one side.

[0011] Furthermore, the air outlet has a size of 10mm × 30mm, and the air outlet direction forms a 60° angle with the horizontal plane.

[0012] Furthermore, the guide port is a hollow square tube with a diameter of 10mm × 30mm. It is welded to the air outlet and its direction forms a 60° angle with the horizontal plane, which is used to guide the airflow to form a downward-sloping air curtain.

[0013] The working principle of this utility model is as follows:

[0014] Once the zinc fume barrier air curtain device is fully loaded with iron parts to be galvanized and in place, the pipe locking valve at the end of the main air pipe locks into the external compressed air pipeline interface, automatically connecting the main air pipe of the zinc fume barrier air curtain device to the external compressed air pipeline. Compressed air enters the air curtain generator through the air pipeline and is evenly sprayed out from the air outlet of the air curtain generator, forming a downward-sloping air curtain under the action of the guide port. This air curtain can effectively block the rising of zinc fumes and guide them to the edge of the zinc pot for easy collection and processing. Beneficial effects

[0015] This utility model has the following advantages:

[0016] Simple structure and easy operation: It adopts an automatic locking device to realize the quick connection and disconnection of air pipes and hangers, which is easy to operate and improves work efficiency.

[0017] Environmentally friendly and efficient: The air curtain effectively blocks the spread of zinc fumes, reduces environmental pollution, and protects the health of operators.

[0018] Wide range of applications: It can be used for hanging fixtures of various specifications and shapes, and has good versatility.

[0019] Low cost: The simple structure makes it easy to manufacture and maintain, reducing production costs. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Appendix Figure 1 A three-dimensional structural schematic diagram provided for an example of this utility model

[0022] Appendix Figure 2 A schematic diagram of the hanging device provided for an example of this utility model.

[0023] Appendix Figure 3 A schematic diagram of the air curtain generating device provided for this utility model embodiment.

[0024] Appendix Figure 4 for Figure 3 A partially enlarged disassembly diagram of part A

[0025] In the diagram: 1. Air inlet; 2. Pipe locking valve; 3. Main air pipe; 4. Hanger longitudinal beam; 5. Hanger crossbeam; 6. Hook; 7. Lifting lug; 8. Air branch pipe; 9. Guide port; 10. Air outlet. Detailed Implementation

[0026] 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.

[0027] Hanging fixture frame construction: Using welding technology, the hanging fixture crossbeam 5 and hanging fixture longitudinal beam 4 are firmly welded according to the preset geometric position and angle to form the basic frame structure of the hanging fixture, ensuring that it has sufficient strength and stability to support subsequent operations.

[0028] Air pipe connection: The main air pipe 3 and the branch air pipe 8 are connected by welding. Specifically, the two branch air pipes 8 are welded to the main air pipe 3 in parallel to form a complete compressed air delivery channel.

[0029] Valve installation: Precisely install the pipeline locking valve 2 at the designated position on the main air pipe 3. Ensure that the valve is securely connected to the pipeline and that the connection is good through the flange connection, so as to achieve effective control of the air pipeline opening and closing and reliable connection and locking with the external air pipeline.

[0030] Attachment component fixing: Using welding technology, the lifting lug 7 is vertically welded to the preset position of the hanging beam 4 for the hoisting and fixing of the hanging fixture; at the same time, the guide port 9 is welded to the air outlet 10 at a specific angle and spacing to guide the direction of compressed air ejection.

[0031] When the zinc fume barrier air curtain device for hot-dip galvanized hangers of this utility model is put into use, firstly, the pipe locking valve 2 is precisely connected to the external air pipeline, and the connection is fixed by the locking mechanism of the pipe locking valve 2. Then, the external air supply system is turned on, allowing compressed air to be injected into the main air pipe 3 through the air inlet 1. The compressed air flows within the main air pipe 3 and, according to the principle of parallel pipeline distribution, is evenly distributed to the two air branch pipes 8. Finally, the compressed air is ejected at a high speed from the air outlet 10 along its length and at a set angle at the guide port 9 welded to the air branch pipe 8, forming an air curtain with an isolating effect at the bottom of the hanger, thereby effectively preventing the diffusion of pollutants from the bottom of the hanger and achieving the intended function of this utility model.

Claims

1. A zinc fume barrier device for hot-dip galvanized hangers, characterized in that: It includes an air curtain generating mechanism and a hanging body. The air curtain generating mechanism is welded and fixed to the outside of the hanging beam. The air curtain generating mechanism has an air inlet at its end. The air inlet is connected to a pipe locking valve. The end of the pipe locking valve is connected to an air main pipe. The end of the air main pipe is connected to two air branch pipes in parallel. Multiple air outlets are evenly distributed along the length of the air branch pipes. A guide port is provided on the outside of the air outlet.

2. The zinc fume barrier air curtain device for hot-dip galvanized hangers according to claim 1, characterized in that: The air curtain generating mechanism includes an air inlet, a pipe locking valve, an air main pipe, an air branch pipe, an air outlet, and a guide port. The air branch pipe is a hollow, elongated square tube with air outlets evenly distributed along its length on one side to form an internal air duct. The air inlet is located at one end of the pipe locking valve and is used to connect to an external air supply system. The air outlet is located on the outer side of the air branch pipe and is distributed along the length of the air branch pipe. The guide port is connected to the outer side of the air outlet and is used to guide compressed air to be evenly ejected from the air outlet to form an air curtain structure.

3. The zinc fume barrier air curtain device for hot-dip galvanized hangers according to claim 1, characterized in that: The hanging fixture body includes a hanging fixture crossbeam, a hanging fixture longitudinal beam, hooks, and lifting lugs. The hanging fixture crossbeam has evenly distributed holes, and the hooks pass through the holes and are connected and fixed to the hanging fixture crossbeam by bolts. The bottom of the hanging fixture longitudinal beam is welded to the hanging fixture crossbeam, and its two sides are welded to the air branch pipes of the air curtain generating mechanism. The lifting lugs are welded to the hanging fixture longitudinal beam and are used to lift the hanging fixture.

4. The zinc fume barrier air curtain device for hot-dip galvanized hangers according to claim 1 or 2, characterized in that: The air branch pipe is a hollow square tube with air outlets evenly distributed along its length on one side.

5. The zinc fume barrier air curtain device for hot-dip galvanized hangers according to claim 1 or 2, characterized in that: The air outlet measures 10mm × 30mm, and its outlet direction forms a 60° angle with the horizontal plane.

6. The zinc fume barrier air curtain device for hot-dip galvanized hangers according to claim 1 or 2, characterized in that: The guide port is a hollow square tube with an opening size of 10mm×30mm and is welded to the air outlet. The extension direction of the guide port forms a 60° angle with the horizontal plane.

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