Magnetic pretreatment device for rolled emulsion

Abstract

The invention discloses a magnetic pretreatment device for a rolled emulsion. The magnetic pretreatment device comprises a cylindrical pretreatment box, wherein a liquid inlet on the sidewall of the lower part of the pretreatment box is connected to an emulsion outlet of an emulsion recycling box; a liquid outlet on the sidewall of the upper part of the pretreatment box is connected to a filtered liquid inlet of a magnetic chain filtering device; a top cover is arranged at the top part of the pretreatment box; an adsorption magnetic bar which extends to the bottom of the inner cavity of the pretreatment box is suspended at the inner side of the top cover; the adsorption magnetic bar penetrates through a slag scraper which is fixed in the inner cavity of the pretreatment box; and a slag discharge hole is arranged at the bottom of the pretreatment box. As the magnetic pretreatment device is arranged between the magnetic chain filtering device and the rolled emulsion recycling box, most suspended residual iron particles are statically deposited; and as the flow speed is relatively fast, the rising iron powdery particles are driven to be adsorbed and deposited by the adsorption magnetic bar in the pretreatment box. The magnetic pretreatment device for the rolled emulsion has a simple structure, and reduces workload of a magnetic chain and a scraper, and the maintenance cost as most iron substances are removed from the emulsion after being treated by the device.

Description

Technical field [0001] The invention relates to a pretreatment device for the reuse of emulsion in a pickling rolling line in the field of metallurgy, in particular to a magnetic pretreatment device for emulsion after rolling. Background technique [0002] Cold-rolled strip steel needs to use emulsion in the rolling process, on the one hand, it is used for roll lubrication, on the other hand, it takes away a large amount of deformation heat generated during rolling. Due to rolling slip, a large amount of ferrous materials (iron or its oxides) on the surface of the strip are washed away by the emulsion. If the emulsion is directly reused without treatment, it will cause fine iron on the surface of the strip during rolling. Powder indentation affects the surface quality of the product. In addition, many industries need to adsorb and remove ferrous particulate matter in liquids to realize the recycling of the liquid to be treated and reduce process costs. [0003] The existing magne...

AI Technical Summary

Problems solved by technology

There is a transmission rack at the end of the chain, which drives the magnetic rod chain through the rotation of the motor; the scraper on the magnetic chain converts the rotary motion of the motor into the reciprocating linear motion of the scraper through the chain transmission mode, because the ferromagnetic substance adsorbed on the magnetic rod will Due to problems such as dryness, the scraping resistance of the scraper is in an alternating state, and even often overloaded. For protective purposes, the transmission chain will break, resulting in the unsustainable scraping process, which will directly lead to batch quality problems such as zinc slag.

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