Magnetic bar and iron corrosive isolation bushing

Abstract

The invention relates to the ferromagnetic substance separation field, and especially relates to a stainless steel isolation bushing for separating a permanent magnetic bar and ferromagnetic substances adsorbed by the permanent magnetic bar. The stainless steel isolation bushing is characterized in that the stainless steel isolation bushing is fixed on a stainless steel isolation bushing fixing plate, and the magnetic bar is jointed in the stainless steel isolation bushing. The permanent magnetic bar does not directly contact with a fluid or a material because of the stainless steel isolation bushing, and allows iron corrosion products in the fluid or the material to be adsorbed on the stainless steel isolation bushing through strong magnetic force action; and when the iron corrosion products accumulate to a certain degree, the permanent magnetic bar is drawn out, so the magnetic force disappears, and the iron corrosion products adsorbed on the stainless steel isolation bushing lose the magnetic force. The stainless steel isolation bushing can easily remove ferromagnetic impurities adsorbed on the ferromagnetic bar.

Description

technical field [0001] The invention relates to the field of separation of ferromagnetic substances, in particular to a stainless steel isolation sleeve for realizing the separation of a permanent magnet bar and ferromagnetic substances adsorbed by it. Background technique [0002] Permanent magnet iron remover is widely used in cement, electric power, steel, coking, mining, metallurgy, ceramics, glass, chemical industry, food, paper and other industries to separate ferromagnetic substances. It uses the strong magnetic force generated by the permanent magnet bar to remove the solid corrosion products of iron in high-temperature hydrophobic and condensed water in electric power, chemical industry and other industries, so as to improve the water vapor quality of the unit or reduce the load of the condensed water mixed bed. On the other hand, it can remove ferromagnetic impurities mixed in solid materials. It is used to remove iron from kaolin slurry in the ceramic industry to...

AI Technical Summary

Problems solved by technology

Some use a lifting porous scraper matched with the permanent magnet bar to scrape off the iron corrosion products adsorbed by the permanent magnet bar, but there are also big problems. First, if the gap between the scraper and the permanent magnet bar is too large Large, iron corrosion products are not easy to scrape off cleanly. Second, if the gap between the scraper and the permanent magnet bar is too small, it is difficult for many magnet bars to maintain a consistent verticality. A slight unevenness and deformation of the scraper will make the permanent magnet bar and the scraper The board is stuck and the scraper cannot move

In addition, the scraper needs a shaft to control its movement up and down, so there is a shaft seal problem. Due to the pressure of the iron-containing corrosive fluid, the shaft seal is easy to leak due to poor sealing.

[0004] In the case of removing ferromagnetic impurities in solid materials, if there is no stainless steel isolation sleeve outside the magnetic rod, when the permanent magnetic rod absorbs more ferromagnetic objects, it needs to be removed manually with a non-magnetic scraper or wearing gloves, which is labor-intensive and inefficient.

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