CN201728085U - Novel aluminum alloy refining particle flux granulator - Google Patents

Abstract

A new type of aluminum alloy refining particle flux granulator, characterized in that it mainly includes a frame (1), a rotating shaft (2), a semi-spherical mold (3), a hopper (4) and a charging box (5) The utility model can granulate the powdered flux used for aluminum alloy refining treatment, and the flux powder added with special binder is granulated, with uniform size, good particle formability and suitable strength.

Description

A new type of aluminum alloy refining particle flux granulator

technical field

The utility model relates to the field of aluminum alloy melt equipment, in particular to a novel aluminum alloy refining particle flux granulator. the

Background technique

Powder granulation technology is the most important branch of powder process treatment. With the improvement of environmental protection requirements and the automation of production process, the granulation of powder products has become an inevitable trend of the world's powder post-processing technology. At present, granulation technology has been widely used in petrochemical, organic chemical, fine chemical, pharmaceutical, food, feed and fertilizer fields. the

Dry extrusion granulation is an important branch of granulation technology. Because of its outstanding advantages in energy saving, cost reduction, environmental protection and product yield, the technology has a wide range of applications. The dry extrusion granulation technology is to transport the dry material to a pair of rolls with pits on the surface, and complete the granulation process of the powdery material under the action of the extrusion force of the rolls, and then undergo a series of shaping, screening, etc. process to produce granular products with uniform size and suitable strength. the

There are no examples of applying granulation technology to the production of aluminum alloy flux at home and abroad. The main reasons are as follows: First, the aluminum alloy flux requires a high moisture content (not more than 0.5%), and it is difficult to form it by extrusion alone. It is very large. In the past, if the particles of dry granulation need to meet the strength requirements, the moisture content of the material is generally not less than 3%, which limits the application of ordinary dry granulation equipment in aluminum alloy flux; the second is flux granulation The requirements for the material of the work roll and the cooperation between the two rolls are relatively high, because the fluxes are mostly salts containing Cl, F and other elements, and the rolls of ordinary materials will have pitting during the extrusion process, which seriously affects the life of the rolls. Solving these two problems is the key to develop a granulator for the production of granular flux for aluminum alloy refining. the

Contents of the invention

The purpose of this utility model is to overcome the shortcomings of the above-mentioned prior art and provide a granulator for producing aluminum alloy refining granule flux. It is extruded into granular fluxes of different sizes and shapes, and the granular strength is good, and the product molding rate reaches over 90%. The service life of the working rolls of special materials is not less than 3 months (according to the monthly output of 300 tons). the

A special chemical raw material that can be used as a binder is mixed into the dry powder flux. This raw material does not affect the use effect of the flux. It does not need to be baked after adding, and has good dispersibility. It can play the role of a binder in the extrusion process and improve The bonding force between the flux particles well ensures the strength of the particle flux. The particle size of the flux depends on the size of the hemispherical mold. The minimum particle diameter can reach 1mm, and the maximum particle diameter can reach 25mm. The rolling force of the rotating shaft can be adjusted according to the actual production situation. the

The utility model is realized in the following way:

A new type of aluminum alloy refining particle flux granulator, characterized in that it mainly includes a frame (1), a rotating shaft (2), a semi-spherical mold (3), a hopper (4) and a charging box (5) The rotating shaft (2) is fixed on the frame (1) by means of bearings, six hemispherical molds (3) are distributed on the rotating shaft (2), and the two hemispherical molds (3) are combined into a hollow ball; the feeding hopper (4) is located at the upper end of frame (1), and charging box (5) is contained in the just below feeding hopper (4). the

The two rotating shafts (2) are arranged in parallel to form a rotating group. the

The hemispherical mold (3) is hollow hemispherical, and forms a hollow sphere with the same hemispherical mold, which can be separated and merged through the rotation of the rotating shaft (2). the

The utility model can granulate the powdered flux used for aluminum alloy refining treatment, and the flux powder added with a special binder is granulated, and the size is uniform, the particle formability is good, and the strength is suitable. Use inert gas to spray granular flux into the aluminum alloy melt. On the one hand, due to the excellent fluidity of the flux, the pressure requirement for the inert gas is not high, which can greatly reduce the amount of inert gas and avoid the blockage of the pipeline by the flux; on the other hand Since the reaction time of the granular flux in the molten aluminum is prolonged, the utilization efficiency of the flux is improved, and the amount of the flux is also greatly reduced, thereby reducing the smoke pollution generated during the reaction and reducing the solid waste generated after the reaction. the

In summary, the utility model has the advantages of simple structure, high production efficiency and long service life, and is an ideal new type of aluminum alloy refining particle flux granulator. It is an ideal solution to the problems of powdery flux dust pollution and unsatisfactory refining effect. the

Description of drawings

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

Detailed ways

Now in conjunction with accompanying drawing, describe the specific embodiment of the utility model in detail:

As shown in Figure 1, a new type of aluminum alloy refining particle flux granulator is characterized in that it mainly includes a frame (1), a rotating shaft (2), a hemispherical mold (3), a hopper (4) and The charging box (5); the rotating shaft (2) is fixed on the frame (1) by means of bearings, and six hemispherical molds (3) are distributed on the rotating shaft (2), and the two hemispherical molds (3) are combined into one Hollow sphere; feeding hopper (4) is located at the upper end of frame (1), and charging box (5) is contained in the just below feeding hopper (4). the

The two rotating shafts (2) are arranged in parallel to form a rotating group. the

The hemispherical mold (3) is hollow hemispherical, and forms a hollow sphere with the same hemispherical mold, which can be separated and merged through the rotation of the rotating shaft (2). the

The utility model adopts dry granulation technology, which can extrude dry powder flux with a moisture content of less than 0.5% into granular flux with the same size and shape, and the particle strength is good, and the product forming rate reaches more than 90%; the work of special materials The service life of the roll is not less than 3 months (according to the monthly output of 300 tons). the

A special chemical raw material that can be used as a binder is mixed into the dry powder flux. This raw material does not affect the use effect of the flux. It does not need to be baked after adding, and has good dispersibility. It can play the role of a binder in the extrusion process and improve The bonding force between the flux particles ensures the strength of the particle flux well. the

The particle size of the flux depends on the size of the hemispherical mold. The minimum particle diameter can reach 1mm, and the maximum particle diameter can reach 25mm. The rolling force of the rotating shaft can be adjusted according to the actual production situation. the

When working, the rotating shaft (2) rotates, and the raw materials flowing into the feed hopper (4) are refined and granulated through the semi-spherical mold (3). the

Claims (3)

1. A novel aluminum alloy refining granule flux granulator, characterized in that it mainly includes a frame (1), a rotating shaft (2), a hemispherical mold (3), a hopper (4) and a charging box ( 5); the rotating shaft (2) is fixed on the frame (1) by means of bearings, six semi-spherical molds (3) are distributed on the rotating shaft (2), and the two semi-spherical molds (3) are combined into a hollow sphere; Feeding hopper (4) is located at the upper end of frame (1), and charging box (5) is contained in just below feeding hopper (4). 2. A new type of aluminum alloy refining granule flux granulator according to claim 1, characterized in that: said rotating shafts (2) are two parallel rotating groups. 3. A new type of aluminum alloy refining particle flux granulator according to claim 1, characterized in that: said hemispherical mold (3) is a hollow hemispherical shape, and forms a hollow sphere with the same hemispherical mold , separation and merging can be realized through the rotation of the rotating shaft (2).

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