CN204724854U - The production of aluminum powder spray chamber of band grading function - Google Patents

Abstract

The utility model provides an atomization chamber with grading function for aluminum powder production, which comprises an atomization nozzle, an atomization chamber, a pipeline interface and a powder collector. The atomization chamber is a tank-shaped structure. The left end of the atomization chamber is provided with an atomizing nozzle, and the right end of the atomization chamber is provided with a pipeline interface. The bottom of the atomization chamber is provided with a plurality of powder collectors along the length direction of the atomization chamber. The powder collector is a funnel-shaped structure. The lower end is provided with a powder collecting port. The utility model can also use the gravity of the aluminum powder itself to classify the atomized aluminum powder at the same time as the atomized aluminum powder is atomized, diffused and cooled, and overcomes the single function of the existing atomization chamber. At the same time, it can effectively overcome the difficulty of grading aluminum powder production, prevent aluminum powder from sticking and agglomerating on the grading equipment and pipeline walls, improve the production efficiency of aluminum powder, and reduce production costs.

Description

Spray chamber with grading function for aluminum powder production

Technical field:

The utility model belongs to the technical field of metal powder production and manufacturing, in particular to an atomization chamber with a classification function for aluminum powder production.

Background technique:

Micro-fine aluminum powder is widely used in military industry, aerospace, chemical industry, metallurgy, building materials and other fields. The market demand is huge and the market prospect is also very broad. Therefore, more and more engineers and technicians pay attention to the production of aluminum powder, and the developed There are more and more powder-making processes for aluminum powder, and the powder-making equipment is various, and the powder-making efficiency is getting higher and higher. However, the current research on aluminum powder production technology and equipment by technicians is mainly aimed at how to improve the production of aluminum powder. Efficiency, to produce more and finer aluminum powder to meet market needs, but there is not much research on the particle size distribution of aluminum powder, that is to say, the aluminum powder produced by the current aluminum powder process equipment , the particle size distribution range is wide, and the particle size of the aluminum powder varies greatly. To produce aluminum powder with a narrow particle size distribution range, the aluminum powder must be sent to the classification equipment again for classification. And the atomization chamber of existing aluminum powder production equipment, its function is only limited to the effect of atomizing and diffusing and cooling the aluminum powder after atomization, and function is single. The aluminum powder entering the classification equipment, due to the high yield of aluminum powder fine powder, small powder particle size and large output, is prone to disadvantages such as powder sticking to the wall of the equipment and pipeline, blockage, and reduced classification efficiency.

Utility model content:

To sum up, in order to overcome the deficiencies of the existing technical problems, the utility model provides an atomization chamber with a classification function for the production of aluminum powder. The atomization chamber performs atomization, diffusion and At the same time of cooling down, the gravity of the aluminum powder itself can be used to classify the atomized aluminum powder for the first time, which overcomes the problem of the single function of the existing atomization chamber, and at the same time can effectively overcome the difficulty of grading the production of aluminum powder and prevent The aluminum powder sticks and agglomerates on the grading equipment and the pipe wall, which improves the production efficiency of aluminum powder and reduces the production cost.

In order to solve the problems of the technologies described above, the technical solution of the utility model is achieved in this way:

An atomization chamber with grading function for the production of aluminum powder, which includes an atomization nozzle, an atomization chamber, a pipeline interface and a powder collector. The atomization chamber is a pot-shaped structure, and the left end of the atomization chamber There is an atomizing nozzle, the right end of the atomizing chamber is provided with a pipeline interface, the bottom of the atomizing chamber is provided with a plurality of powder collectors along the length direction of the atomizing chamber, the powder collector is a funnel-shaped structure, and the lower end is provided Powder collection port.

Further, the atomization chamber includes an inner wall and an outer wall, the inner wall is covered with an outer wall, a cooling cavity is formed between the inner wall and the outer wall, the outer wall is provided with a cooling water inlet and a cooling water outlet, and the cooling water inlet is arranged on the side of the atomization chamber. The bottom near the side of the atomizing nozzle, and the cooling water outlet is arranged at the upper part of the atomizing chamber near the pipe interface.

Further, a spiral cooling deflector is arranged in the cooling cavity along the length direction of the atomization chamber.

Further, the inner wall of the powder collector is provided with a spiral powder deflector.

Further, the bottom of the atomization chamber is provided with three powder collectors along the length direction of the atomization chamber, and the three powder collectors are arranged in parallel.

The beneficial effects of the utility model are:

1. The utility model can also use the gravity of the aluminum powder itself to classify the atomized aluminum powder while performing atomization, diffusion and cooling of the atomized aluminum powder, which overcomes the function of the existing atomization chamber. Single problem, and at the same time, it can effectively overcome the difficulty of grading aluminum powder production, prevent aluminum powder from sticking and agglomerating on the grading equipment and pipeline walls, improve the production efficiency of aluminum powder, and reduce production costs.

2. The tank-shaped atomization chamber of the utility model is arranged horizontally, and a plurality of powder collectors are arranged at the bottom thereof, and the aluminum powder sprayed out at high speed by the atomization nozzle flows along the length direction of the atomization chamber under the protection of the inert gas. Under the action of the gravity of the aluminum powder, the larger aluminum powder particles first settle into the first powder collector, the medium-sized aluminum powder settles into the second powder collector next, and the smaller particles settle into the second powder collector again. The third powder collector, and the fine aluminum powder enters the subsequent aluminum powder grading equipment from the pipeline interface along with the inert gas for re-classification.

3. A cooling cavity is set between the inner wall and the outer wall of the atomization chamber of the present invention, and the cooling water or cooling oil for cooling circulates in the cooling cavity to cool the atomization chamber and the inert gas and aluminum powder in the atomization chamber. Cool down.

4. The inner wall of the powder collector of the present utility model is provided with a spiral powder deflector, and the settled aluminum powder particles flow downward through the powder collection port under the diversion action of the spiral powder deflector Collect and store.

5. The utility model has the advantages of simple structure, convenient use, low cost and novel concept. It adds the function of primary classification to the original function of the atomization chamber, effectively improves the production efficiency of aluminum powder, and reduces the production cost.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is an enlarged schematic diagram of part A of Fig. 1 of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Fig. 1 and Fig. 2, an atomization chamber with a classification function for aluminum powder production includes an atomization nozzle 2, an atomization chamber 1, a pipeline interface 3 and a powder collector 4, and the atomization chamber 1 is a tank-like structure, including an inner wall 6 and an outer wall 7, the inner wall 6 is covered with an outer wall 7, a cooling cavity 10 is formed between the inner wall 6 and the outer wall 7, and the outer wall 7 is provided with a cooling water inlet 8 and a cooling water outlet 9, cooling The water inlet 8 is arranged at the bottom of the atomization chamber 1 near the atomization nozzle 2, the cooling water outlet 9 is arranged at the upper part of the atomization chamber 1 near the pipeline interface 3, and the inside of the cooling cavity 10 is along the side of the atomization chamber 1. A spiral cooling deflector 11 is set in the length direction of the atomization chamber 1. The left end of the atomization chamber 1 is provided with an atomization nozzle 2. The right end of the atomization chamber 1 is provided with a pipeline interface 3. The bottom of the atomization chamber 1 is along the Three powder collectors 4 are arranged in the length direction, and the three powder collectors 4 are arranged parallel and side by side. A spiral powder deflector 12 is provided.

The atomization chamber 1 of the utility model is connected with the heat preservation furnace for aluminum powder production through the atomization nozzle 2. The inner cavity of the atomization chamber 1 flows along the length direction of the atomization chamber 1 under the protection of the inert gas, and its speed gradually decreases, and the aluminum powder settles under the action of its own gravity. The aluminum powder of medium particles settles into the second powder collector 4 next, and the aluminum powder of smaller particles settles into the third powder collector 4 again, while the fine aluminum powder flows from the The pipeline interface 3 enters the subsequent aluminum powder classification equipment for further classification. The aluminum powder particles entering the powder collector 4 flow downward through the powder collection port 5 under the guidance of the spiral powder deflector 12 for collection and storage. During the whole process, the cooling water enters the cooling cavity 10 of the atomization chamber 1 from the cooling water inlet 8, flows out from the cooling water outlet 9, and the cooling water circulates in the cooling cavity 10 under the action of the cooling deflector 11. The atomization chamber 1 and the inert gas and aluminum powder in the atomization chamber 1 are cooled down.

It should be noted that the above-mentioned embodiments are illustrations and not limitations to the technical solutions of the present utility model, equivalent replacements by those of ordinary skill in the art or other modifications made according to the prior art, as long as they do not exceed the technical solutions of the present utility model The idea and scope of the invention should be included in the scope of rights required by the utility model.

Claims (5)

1. An atomization chamber with grading function for aluminum powder production, characterized in that it includes an atomization nozzle (2), an atomization chamber (1), a pipeline interface (3) and a powder collector (4), the The atomization chamber (1) described above is a pot-shaped structure, the left end of the atomization chamber (1) is provided with an atomization nozzle (2), the right end of the atomization chamber (1) is provided with a pipeline connection (3), and the atomization chamber ( The bottom of 1) is provided with multiple powder collectors (4) along the length direction of the atomization chamber (1), and the powder collectors (4) are funnel-shaped structures, and the lower end is provided with a powder collection port (5) . 2. The atomization chamber with grading function for aluminum powder production according to claim 1, characterized in that: the atomization chamber (1) includes an inner wall (6) and an outer wall (7), and the outer wall (6) is The suit has an outer wall (7), a cooling cavity (10) is formed between the inner wall (6) and the outer wall (7), the outer wall (7) is provided with a cooling water inlet (8) and a cooling water outlet (9), and the cooling water inlet (8) is arranged at the bottom of the atomization chamber (1) near the atomization nozzle (2), and the cooling water outlet (9) is arranged at the upper part of the atomization chamber (1) near the pipe interface (3). 3. The atomization chamber with classification function for aluminum powder production according to claim 2, characterized in that: the cooling cavity (10) is provided with a spiral cooling chamber along the length direction of the atomization chamber (1). deflector (11). 4. The atomization chamber with classification function for aluminum powder production according to claim 1, characterized in that: the inner wall (6) of the powder collector (4) is provided with a spiral powder guide board (12). 5. The atomization chamber with grading function for aluminum powder production according to claim 1, characterized in that: the bottom of the atomization chamber (1) is provided with three powders along the length direction of the atomization chamber (1). powder collector (4), and three powder collectors (4) are arranged side by side in parallel.