Mica production equipment with leftover material recovery treatment

Abstract

The invention provides mica production equipment with leftover material recovery treatment, and relates to the technical field of mica papermaking. The mica production equipment comprises a vibrationfeeding device, a stripping and crushing device, a flexible impact pulping device, a weighing and feeding device and a secondary stirring device. The vibration feeding device comprises a vibrator, a feeding disc and a feeding hopper. The stripping and crushing device comprises a roller and a stripping shell; a negative-pressure cavity is formed in the roller, and a negative-pressure air suction port is formed in the outer circle of the roller; and a stripping cavity and a pressure water nozzle are arranged in the stripping shell in the tangential direction of the outer circle of the roller, and a long and narrow feeding port is formed in the side of the stripping shell. The flexible impact pulping device comprises an outer pulping barrel, an inner pulping filtering barrel and a rotating shaft, and a flexible strip is arranged on the rotating shaft. The weighing and feeding device is used for weighing and feeding. The second-stage stirring device comprises an upper-layer stirring barreland a lower-layer stirring barrel, and slurry the bottom of the lower-layer stirring barrel is conveyed to the inner pulping filtering barrel through a slurry pump. The invention aims to obtain slurry of high-grade mica fines and recycle leftover materials of mica paper for pulping.

Description

technical field [0001] The invention relates to the technical field of mica papermaking, in particular to mica production equipment with scrap recycling. Background technique [0002] Mica paper is made of crushed mica or mica powder through pulping, papermaking, molding, pressing and other processes, which can replace natural flake mica as industrial electrical insulation materials. [0003] At present, the methods for preparing mica pulp include calcined chemical pulping method, hydraulic pulping method, rubber roller pulverization method and ultrasonic pulverization method, and the former two pulping methods are mostly used. Among them, the technological process of the hydropulping method is: sorting (removing impurities) of crushed mica → water separation → hydropulping → hydrocyclone classification → dehydration and concentration. [0004] Among them, the hydraulic pulping step is to use high-pressure jet water to peel off the mica flakes into fine scales in a special ...

AI Technical Summary

Problems solved by technology

[0005] During the hydraulic impact process of the existing hydraulic pulper, the mica is repeatedly hard impacted into small scales or fine powder, and the diameter-thickness ratio is not up to standard, which seriously reduces the grade of the mica sheet. In order not to cause waste of resources, it is necessary to recycle this part of the waste after cutting

Images