CN-122012936-A - Aluminum liquid purifying treatment equipment and control system thereof

CN122012936ACN 122012936 ACN122012936 ACN 122012936ACN-122012936-A

Abstract

The invention discloses aluminum liquid purification treatment equipment and a control system thereof, and relates to a metal solution purification technology, wherein the aluminum liquid purification treatment equipment comprises a box body, a liquid inlet and a liquid outlet which are respectively arranged at two sides of the box body, the liquid inlet is communicated with the first-stage cavity, the liquid outlet is communicated with the second-stage cavity, a box cover is arranged on the box body through a lifter, a first-stage degassing rotor assembly, a first-stage heater and a second-stage degassing rotor assembly and a second-stage heater which are integrated on the box cover, wherein the degassing rotor assembly is configured to calibrate the blade angles of rotor blades of the degassing rotor assembly, and a rotor rotation speed control instruction of the degassing rotor assembly is generated according to aluminum liquid purification real-time data, set target average bubble diameters and the blade angles. According to the invention, through the double-cavity serial structure, the residence time of the aluminum liquid is prolonged, the uniformity of purification and heating is improved, and meanwhile, the working efficiency is greatly improved.

Inventors

LIU DINGYUAN
HUANG KAIHONG
CHEN XIUHE
LIU MENGYANG
LI SHAOQIANG
Liang Jianpei

Assignees

南宁龙知易科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260320

Claims (10)

1. An aluminum liquid purifying treatment apparatus, characterized by comprising: The box body (1) is internally provided with a primary cavity (11) and a secondary cavity (12) which are isolated from each other, and the primary cavity (11) is communicated with the secondary cavity (12) through an intermediate runner (13); the liquid inlet (6) and the liquid outlet (7) are respectively arranged at two sides of the box body (1), the liquid inlet (6) is communicated with the primary cavity (11), and the liquid outlet (7) is communicated with the secondary cavity (12); A case cover (2) mounted on the case body (1) by a lifter (3); The primary degassing rotor assembly (4) and the primary heater (5) are integrated on the box cover (2), the primary degassing rotor assembly (4) and the primary heater (5) are inserted into the primary cavity (11) when the box cover (2) is closed, the primary degassing rotor assembly (4) is configured to calibrate a first blade angle of a rotor blade of the primary degassing rotor assembly (4) according to the design aluminum liquid flow of the box body (1), and generate a rotor rotating speed control instruction of the primary degassing rotor assembly (4) according to the aluminum liquid purification real-time data, the set target average bubble diameter and the first blade angle; the secondary degassing rotor assembly (41) and the secondary heater (51) are integrated on the box cover (2), the secondary degassing rotor assembly (41) and the secondary heater (51) are inserted into the secondary cavity (12) when the box cover (2) is closed, the primary degassing rotor assembly (4) is configured to calibrate a second blade angle of a rotor blade of the secondary degassing rotor assembly (41) according to the first blade angle, and a rotor rotating speed control instruction of the secondary degassing rotor assembly (41) is generated according to the aluminum liquid purification real-time data, the set target average bubble diameter and the second blade angle.
2. The aluminum liquid purification treatment equipment according to claim 1, wherein a time period is set according to a functional relation between the aluminum liquid flow and the aluminum liquid volume of the cavity, the time period is subjected to discrete treatment to generate time discrete values, a bubble average diameter is mapped for each time discrete value based on a preset bubble average diameter range, the bubble average diameter is taken as a target bubble average diameter, the aluminum liquid purification real-time data and the blade angle are combined, the current rotor rotating speed is calculated, and the current rotor rotating speed is taken as a rotating speed control instruction for controlling a rotor of the degassing rotor assembly at the current moment.
3. An apparatus for purifying an aluminum liquid according to claim 2, wherein the aluminum liquid volume of the chamber is 80% -90% of the maximum volume of the aluminum liquid in the chamber.
4. The apparatus for purifying molten aluminum and a control system thereof according to claim 1, wherein the first blade angle is 50 ° to 60 °.
5. An apparatus for purifying an aluminum liquid as recited in claim 1, wherein the second blade angle is 30 ° to 40 °.
6. The aluminum liquid purifying treatment device according to claim 1, wherein a liquid inlet cavity (15) is arranged between the liquid inlet port (6) and the primary cavity (11), the liquid inlet cavity (15) is communicated with the liquid inlet port (6), and a liquid inlet channel (151) is arranged between the liquid inlet cavity (15) and the primary cavity (11) so as to drain aluminum liquid in the liquid inlet cavity (15) to the bottom of the primary cavity (11).
7. The aluminum liquid purifying treatment device according to claim 1, wherein a liquid outlet cavity (16) is arranged between the liquid outlet (7) and the secondary cavity (12), the liquid outlet cavity (16) is communicated with the liquid outlet (7), and a liquid outlet channel (161) is arranged between the liquid outlet cavity (16) and the secondary cavity (12) so as to drain the aluminum liquid in the liquid outlet cavity (16) to the bottom of the secondary cavity (12).
8. The aluminum liquid purification treatment equipment according to claim 1, wherein a separation plate (14) is arranged between the two cavities, and an intermediate runner (13) which is communicated with the two cavities simultaneously is arranged at the upper part of the separation plate (14).
9. The aluminum liquid purification treatment equipment according to claim 1, wherein two emptying ports (17) are formed in one side, far away from the lifter (3), of the box body (1), the two emptying ports (17) are respectively communicated with the two primary cavities in a corresponding mode, and a blocking piece (171) is arranged in each of the two emptying ports (17).
10. A control system of an aluminum liquid purifying treatment apparatus, characterized in that the control system collects real-time data reflecting an aluminum liquid purifying condition in the aluminum liquid purifying treatment apparatus according to any one of claims 1 to 9, and controls a primary degassing rotor assembly (4), a primary heater (5), a secondary degassing rotor assembly (41) and a secondary heater (51) to remove hydrogen and impurities from the aluminum liquid in a tank (1) according to the real-time data.

Description

Aluminum liquid purifying treatment equipment and control system thereof Technical Field The invention relates to a metal solution purification technology, in particular to an aluminum liquid purification treatment device and a control system thereof. Background In the smelting process of aluminum and aluminum alloy, hydrogen and oxide inclusion are main factors which cause defects of casting such as air holes, looseness and the like, and seriously influence the mechanical property and service life of the material. The rotary blowing method is the current mainstream online aluminum liquid purification technology, and is characterized in that high-purity inert gas (such as argon) is introduced into the aluminum liquid, and the aluminum liquid is broken into dispersed tiny bubbles through a rotor rotating at a high speed. When the bubbles float up in the aluminum liquid, the partial pressure difference between the bubbles and the aluminum liquid is utilized to realize dehydrogenation (Sieverts law), nonmetallic inclusion is captured by utilizing the adsorption action of the bubble surface, and finally, the hydrogen and the impurity are brought out of the melt. In the prior art, as CN201921852372.1 discloses an aluminum liquid degassing tank and an aluminum liquid degassing device, which are single-stage rotor degassing technologies, but the technologies have the defects that as the density, weight and other parameters of hydrogen and sundries are different and the rotating speed of a rotor is fixed, only tiny bubbles with one size can be applied to the single-cavity degassing and sundry device in a certain time period, and the angle design of a blade also has the advantages of impurity removal and hydrogen removal, and the pertinence is not strong, so that the traditional design cannot dynamically optimize the size distribution and flow field characteristics of bubbles for different cleaning objects, so that the purifying effect is unstable. Disclosure of Invention Aiming at the defects of the prior art, the invention provides the aluminum liquid purifying treatment equipment and the control system thereof, which effectively improve the working efficiency and the purifying effect on the aluminum liquid. The invention relates to an aluminum liquid purifying treatment device, which comprises: The box body is internally provided with a primary cavity and a secondary cavity which are mutually isolated, and the primary cavity is communicated with the secondary cavity through an intermediate runner; The liquid inlet and the liquid outlet are respectively arranged at two sides of the box body, the liquid inlet is communicated with the primary cavity, and the liquid outlet is communicated with the secondary cavity; the box cover is arranged on the box body through an elevator; The first-stage degassing rotor assembly and the first-stage heater are integrated on the box cover and are inserted into the first-stage cavity when the box cover is closed, and the first-stage degassing rotor assembly is configured to calibrate a first blade angle of a rotor blade of the first-stage degassing rotor assembly according to the design aluminum liquid flow rate of the box body and generate a rotor rotating speed control instruction of the first-stage degassing rotor assembly according to the aluminum liquid purification real-time data, the set target average bubble diameter and the first blade angle; The secondary degassing rotor assembly and the secondary heater are integrated on the box cover and are inserted into the secondary cavity when the box cover is closed, and the primary degassing rotor assembly is configured to calibrate a second blade angle of rotor blades of the secondary degassing rotor assembly according to the first blade angle and generate a rotor rotating speed control instruction of the secondary degassing rotor assembly according to the aluminum liquid purification real-time data, the set target average bubble diameter and the second blade angle. Preferably, a time period is set according to a functional relation between the aluminum liquid flow and the aluminum liquid volume of the cavity, discrete processing is carried out on the time period to generate time discrete values, a bubble average diameter is mapped for each time discrete value based on a preset bubble average diameter range, the bubble average diameter is taken as a target bubble average diameter, real-time data of aluminum liquid purification and blade angles are combined to calculate the current rotor rotating speed, and the current rotor rotating speed is taken as a rotating speed control instruction for controlling the rotor of the degassing rotor assembly at the current moment. Preferably, the volume of the aluminum liquid in the cavity is 80% -90% of the maximum volume of the aluminum liquid in the cavity. Preferably, the first blade angle is 50 ° -60 °. Preferably, the second blade angle is 30 ° -40 °. Preferably, a liquid inlet cavity is