Novel automatic pressure regulator for rare earth siphon discharge

Abstract

The invention discloses a novel automatic pressure regulator for rare earth siphon discharge. The novel automatic pressure regulator comprises an electrolytic bath, a crucible, a siphon pipeline, a vacuum pump, a signal receiver, a lifting platform, a lead screw, a guide rail, a base, a gear, a steering engine, a main control panel and a vacuum pump knob. When the equipment runs, the motor drives the lead screw to drive the vacuum pump on the lifting platform to ascend and descend, the laser range finder measures the distance of the bottom surface of the lifting platform, the laser range finder returns a distance signal to the vacuum pump controller, and the pressure of the vacuum pump is regulated and controlled according to a distance-pressure relation calibrated in advance; and internal and external pressure at the feeding hole of the siphon pipeline is kept to be zero, so suck-back is prevented. The siphon and the vacuum pump are protected.

Description

technical field [0001] The invention relates to the field of rare earth furnace tapping technology, in particular to a novel automatic voltage regulator for rare earth siphon furnace tapping. Background technique [0002] At present, domestic and foreign researches on rare earth extraction technology are not comprehensive enough, especially in the technical field of siphon extraction, there are still a series of problems waiting to be solved, and mature solutions and equipment have not yet been found for electrolyte sucking back. In order to avoid this series of problems, the furnace technology adopted at this stage is mainly manual furnace and mechanical clamping furnace. Manual furnace is labor-intensive, the working environment is harsh, and the operation is discontinuous, resulting in the electrolytic cell not being able to work continuously, resulting in waste of energy. , The liquid metal cools down greatly during the process of being out of the furnace, causing solidi...

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Problems solved by technology

[0002] At present, domestic and foreign researches on rare earth technology are not comprehensive enough, especially in the technical field of siphon technology, there are still a series of problems waiting to be solved, and electrolyte sucking back has not yet found a mature solution and equipment

In order to avoid this series of problems, the furnace technology adopted at this stage is mainly manual furnace and mechanical clamping furnace. Manual furnace is labor-intensive, the working environment is harsh, and the operation is discontinuous, resulting in the electrolytic cell not being able to work continuously, resulting in waste of energy. , The liquid metal cools down greatly during the process of being out of the furnace, causing solidification, which is not conducive to product molding, and there are problems such as difficult positioning of the mechanical clamping out of the furnace, and unstable transmission.

Siphon out of the furnace can effectively overcome these difficulties, but it is easy to cause back suction when the bottom end of the siphon tube enters and exits the electrolytic cell, resulting in corrosion of the siphon tube and even the vacuum pump. To achieve the purpose of anti-suckback, therefore, it is urgent to propose a new type of rare earth siphon out of furnace automatic pressure regulator

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