A mobile furnace-front double-impeller refining device

Abstract

This invention discloses a mobile pre-furnace dual-impeller refining device, including an equipment mounting platform. Two impeller rotating devices are installed on the mounting platform. Each impeller rotating device includes a column rotatably mounted on the mounting platform via a shaft. A lifting screw is mounted on the mounting platform via a screw motor, threaded to the middle section of the column to drive its lifting and lowering. A main shaft box is slidably connected to the column along its length, and a main shaft is installed inside the main shaft box. An impeller is mounted at the front end of the main shaft, and a rotary motor for driving the main shaft rotation is mounted at the rear end. In the two sets of impeller rotating devices, the two columns are arranged at an angle between 15 and 35 degrees. The advantages are: practicality, novel structure, simultaneous operation of two impellers, increased stirring capacity, larger aluminum liquid circulation range, fewer dead zones, significantly improved refining effect, doubled efficiency, reduced working time, increased efficiency, and reduced energy consumption.

Description

Technical Field

[0001] This invention pertains to equipment for refining, removing slag, and degassing before a melting furnace. Specifically, it relates to a device that utilizes two impellers to simultaneously refine, remove slag, and degas the molten aluminum inside the furnace. It is suitable for the production of aluminum ingots, aluminum rods, and aluminum plates, and is particularly beneficial for improving the quality of molten aluminum, reducing energy consumption, and increasing efficiency. Specifically, it relates to a mobile, dual-impeller refining device for the furnace front. Background Technology

[0002] 1. Currently, in the production of aluminum ingots, aluminum rods, and aluminum plates, product requirements are becoming increasingly stringent, and the capacity of molten aluminum in furnaces is also increasing, making aluminum liquid processing more difficult. Single equipment is insufficient to meet the high-quality requirements of molten aluminum production. The refining, slag removal, and degassing processes of molten aluminum in the furnace melting stage have become extremely stringent. Inadequate aluminum liquid processing in the furnace will lead to increased difficulties in subsequent processing.

[0003] 2. Currently, all rotary impeller refining machines have only one impeller, resulting in a single working position and limited stirring capacity. This leads to a small circulation range of molten aluminum within the furnace, numerous dead zones, and poor refining, slag removal, and degassing effects. Furthermore, they are inconvenient for mobile operations.

[0004] 3. Currently, when the furnace refining equipment is working, the furnace door is always wide open, and the working time is generally 20-40 minutes. During this time, the furnace door is open, resulting in a large heat loss. After refining, it needs to be reheated, which not only causes secondary air intake but also wastes energy. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a mobile furnace front double impeller refining device to address the shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention adopts the following measures:

[0007] A mobile furnace-front double-impeller refining device includes an equipment installation platform. Two impeller rotating devices are installed on the equipment installation platform. Each impeller rotating device includes a column that is rotatably mounted on the equipment installation platform at one end via a rotating shaft. A lifting screw is installed on the equipment installation platform via a screw motor. The lifting screw is threaded to the middle section of the column to drive the column to rise and fall. A main shaft box is slidably connected to the column along its length. A main shaft is installed inside the main shaft box. An impeller is installed at the front end of the main shaft, and a rotary motor for driving the main shaft to rotate is installed at the rear end.

[0008] In the two sets of impeller rotating devices, the two columns are arranged at an angle between 15 and 35 degrees.

[0009] The main shaft is fitted with a heat insulation cover.

[0010] The column is provided with a guide rail along its length. The spindle box is slidably mounted on the guide rail by a slider. A forward and reverse motor for driving the spindle box to slide along the guide rail is installed at the end of the column.

[0011] The equipment installation platform is a mobile platform, with a tracked drive mechanism or a wheeled drive mechanism installed at its bottom to drive the entire equipment installation platform to move.

[0012] The beneficial effects of this invention are: practicality, novel structure, simultaneous operation of two impellers, increased stirring capacity, large aluminum liquid circulation range, few dead zones, significantly improved refining effect, doubled efficiency, reduced working time, improved efficiency, and reduced energy consumption. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the side-retracted state structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the side-extended state structure of the present invention.

[0015] Figure 3 This is a top view of the retracted state structure of the present invention.

[0016] Figure 4 This is a top view of the extended state structure of the present invention.

[0017] Figure 5 This is a top view of the structure of the present invention in use.

[0018] Figure 6 This is a schematic diagram of the impeller lifting structure in use according to the present invention.

[0019] Figure 7 This is a schematic diagram of the impeller lowering structure in the usage state of the present invention. Detailed Implementation

[0020] A mobile pre-furnace dual-impeller refining device includes an equipment mounting platform 1. The device is characterized by having two impeller rotating mechanisms mounted on the platform 1. Each impeller rotating mechanism includes a column 2 rotatably mounted on the platform 1 via a rotating shaft 9. A lifting screw 3 is mounted on the platform 1 via a screw motor 8. The lifting screw 3 is threaded to the middle section of the column 2, driving the column 2 to rise and fall. A main shaft box 4 is slidably connected to the column 2 along its length. A main shaft 5 is installed inside the main shaft box 4. An impeller 6 is mounted at the front end of the main shaft 5, and a rotary motor 7 for driving the main shaft 5 is mounted at the rear end. The rotary motor 7 drives the impeller 6 to rotate via the interface of the main shaft 5. During operation, the lifting screw 3 can be rotated by the screw motor 8, which in turn drives the column 2 to rotate along the rotating shaft 9, thus adjusting the height of the impeller 6. The forward and reverse rotation of the reversible motor 12 can cause the main shaft box 4 to slide back and forth along the column 2, thereby adjusting the forward and backward position of the impeller 6.

[0021] In the two sets of impeller rotating devices, the two columns 2 are arranged at an angle between 15 and 35 degrees.

[0022] like Figure 1-7 As shown, this furnace-side refining equipment utilizes two impellers to simultaneously refine, remove slag, and degas the molten aluminum. It boasts rapid and efficient slag and gas removal capabilities, shortening refining time and reducing temperature drop. Suitable for the production of aluminum ingots, rods, and plates, it is particularly beneficial for improving aluminum molten material quality, reducing energy consumption, and increasing efficiency. The complete system consists of two impeller rotation devices, two lifting systems, and a moving platform.

[0023] Advantage 1: The two impellers 6 are arranged at a certain angle of 15-35°. When working, the distribution distance between the two impellers 6 is wide. The two impellers 6 work at the same time, which increases the stirring capacity, expands the circulation range of the aluminum liquid, reduces dead zones, and significantly improves the refining effect.

[0024] Secondly, with both sets of impellers 6 on the same mobile platform (equipment installation platform 1), the equipment size is greatly reduced, making it more flexible and convenient to move, significantly improving on-site adaptability. One piece of equipment can meet the requirements of multiple furnaces, reducing investment costs and increasing equipment utilization.

[0025] Thirdly, the two sets of refining agents and inert gases are simultaneously sprayed out through the middle of the two impellers 6, doubling the efficiency, reducing working time, improving efficiency, and reducing energy consumption.

[0026] The main shaft 5 is fitted with a heat insulation cover 11.

[0027] The column 2 is provided with a guide rail along its length. The spindle box 4 is slidably mounted on the guide rail by a slider. A forward and reverse motor 12 for driving the spindle box 4 to slide along the guide rail is installed at the end of the column 2.

[0028] The equipment installation platform 1 is a movable platform, and a tracked drive mechanism or a wheeled drive mechanism is installed at the bottom of the platform to drive the entire equipment installation platform 1 to move.

Claims

1. A mobile furnace-front double-impeller refining device, comprising an equipment installation platform (1), characterized in that: Two impeller rotating devices are installed on the equipment installation platform (1). The impeller rotating device includes a column (2) that is rotatably installed on the equipment installation platform (1) via a rotating shaft (9). A lifting screw (3) is installed on the equipment installation platform (1) via a screw motor (8). The lifting screw (3) is threaded to the middle section of the column (2) to drive the column (2) to rise and fall. A main shaft box (4) is slidably connected to the column (2) along its length. A main shaft (5) is installed inside the main shaft box (4). An impeller (6) is installed at the front end of the main shaft (5), and a rotary motor (7) for driving the main shaft (5) to rotate is installed at the rear end.

2. The mobile pre-furnace double-impeller refining equipment according to claim 1, characterized in that: In the two sets of impeller rotating devices, the two columns (2) are arranged at an angle between 15 and 35 degrees.

3. A mobile pre-furnace double-impeller refining device according to claim 1 or 2, characterized in that: The main shaft (5) is covered with a heat insulation cover (11).

4. A mobile pre-furnace double-impeller refining device according to claim 3, characterized in that: The column (2) is provided with a guide rail along its length. The spindle box (4) is slidably mounted on the guide rail by a slider. A forward and reverse motor (12) for driving the spindle box (4) to slide along the guide rail is installed at the end of the column (2).

5. A mobile pre-furnace double-impeller refining device according to claim 4, characterized in that: The equipment installation platform (1) is a mobile platform, and a tracked drive mechanism or a wheeled drive mechanism is installed at the bottom to drive the entire equipment installation platform (1) to move.

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