A magnetic rod self-rotating permanent magnet filter device

Abstract

The invention discloses a magnetic bar rotation type permanent magnet filtering device. Driven by a motor transmission mechanism, the magnetic link periodically reciprocates and enters below the liquid level of a box used to store cold rolling coolant, thereby filtering the liquid in the coolant. Metal dust is adsorbed; above the magnetic link mechanism, a decontamination mechanism is also provided. The decontamination mechanism is arranged perpendicularly or at an angle to the plane of the upper surface of the magnetic link to decontaminate the reciprocating magnetic link above the liquid level. During this process, each magnetic rod moves perpendicular to the length of the magnetic rod and rotates to scrape off the metal dust on the magnetic rod. It can effectively avoid the deformation or damage of the magnetic rod caused by the rigid contact with the decontamination device during the movement of the magnetic rod, and prevent the decontamination mechanism from getting stuck, causing equipment shutdown failure caused by the magnetic rod transmission chain; in addition, it can greatly reduce the overall size of the equipment. At the same time, it significantly improves the running speed and following performance of the magnetic link mechanism, and has wider applicability.

Description

technical field [0001] The invention relates to a filter device, in particular to a filter device used for cold rolling cooling liquid treatment. Background technique [0002] The magnetic rod filter is the most widely used permanent magnet magnetic filter device at present. It is mainly used to remove iron powder in the liquid and keep the liquid clean to a certain extent. The permanent magnetic bar filter is a magnetic bar using high-performance permanent magnets as the magnetic source. A strong magnetic field is formed through a chain drive system to form a magnetic grid, which absorbs iron powder and other particles in the liquid, and then uses mechanical decontamination to remove the sticky particles. The iron powder attached to the magnetic rod is scraped off to make the magnetic rod clean before the next round of adsorption and decontamination. [0003] Studies have shown that compared with electromagnetic filters, permanent magnetic rod filters have the advantages o...

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Problems solved by technology

However, further studies have shown that no matter which type is mentioned above, there is a defect that the rigid contact between the decontamination mechanism and the magnetic rod is easy to cause deformation or damage to the magnetic rod, and it is impossible to achieve an efficient and satisfactory decontamination filtering effect; in addition, the current To achieve a complete decontamination operation, state-of-the-art coolant magnetic filter devices use a relatively independent power system to drive the magnetic bar to move linearly along the length direction, or to drive the scraper arm with a length equal to the magnetic bar to move linearly. It determines that the structural size of this type of equipment is too large, and the power system is complicated, which in turn affects the performance of the filtration efficiency.

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