Metal impurity removing device of flash dryer

Abstract

The invention discloses a metal impurity removing device of a flash dryer, which is used for removing metal impurities from materials in tetrabromobisphenol A production. The device comprises a feeding bin, a storage tank is arranged at the top of the feeding bin, the storage tank is connected with the feeding bin through a discharging pipe, a feeding auger is arranged at the bottom of the feedingbin, one end of the feeding auger is connected with a motor 7, and an outlet in the other end of the feeding auger is connected with a flash dryer; a sieve plate and a permanent magnet are arranged in the feeding bin, and a mounting hole is formed in the position, opposite to the permanent magnet, of the side wall of the feeding bin. And the sieve plate is arranged at the upper part of the permanent magnet. The metal impurity removing device has the beneficial effects that the structure is simple, large metal impurities contained in materials are screened out through the screening plate, thenthe metal impurities in the materials are adsorbed through the permanent magnet, the metal impurities contained in the materials are thoroughly removed, and the quality of final products is guaranteed.

Description

technical field [0001] The invention is used for removing metal impurities from materials in the production of tetrabromobisphenol A (abbreviated as TBBA). Background technique [0002] Due to the continuous production and operation of the tetrabromine workshop, some processes are open, and some impurities will enter the product during the production process, and even the rust formed by oxidation and corrosion on the surface of some equipment will also fall into the product. If it is not detected in time, after the material enters the flash dryer for drying, it will cause damage to the equipment when the dryer crushes the material. At the same time, metal impurities are mixed in the final product, which also causes the iron ion content in the product to exceed the standard and reduces the product quality. Contents of the invention [0003] The object of the present invention is to provide a device for removing metal impurities in a flash dryer to solve the technical defec...

AI Technical Summary

Problems solved by technology

If it is not discovered in time, after the material enters the flash dryer for drying, it will cause damage to the equipment when the dryer crushes the material

At the same time, metal impurities are mixed in the final product, which also causes the iron ion content in the product to exceed the standard and reduces the product quality.

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