Diatomite crushing and drying device

Abstract

The invention discloses a diatomite crushing and drying device which comprises an air duct, a crusher, a roll crusher, a hearth, a primary vibrating screen, a secondary vibrating screen, a turbofan, a classification device and a dust collection warehouse, wherein the crusher comprises two crushing rollers which rotate opposite to each other and have a plurality of rows of wolf tooth structures distributed uniformly on the surface; and the roll crusher comprises two rollers which rotate opposite to each other and are provided with a plurality of convex structures on the surface. During crushing and drying, the diatomite is crushed twice through the crusher and the roll crusher and is dried at the drying temperature of 400-600 DEG C for 30-60 seconds, dust collection and screening are performed through the classification device and the primary vibrating screen after drying, and the required particles are screened. The device has the beneficial effects that the whole device can integrate the functions of feeding, crushing, drying, screening and dust removing into a whole, the operation is convenient, the production efficiency is high, and the manual and material cost is greatly reduced. The crushed and dried diatomite is low in moisture content, and the yield of particles of which the particle size is in the required range is high.

Description

technical field [0001] The invention belongs to the field of diatomite drying, and in particular relates to a diatomite crushing and drying device. Background technique [0002] Diatomite is a kind of siliceous rock, which is mainly distributed in China, the United States, Denmark, France, the Soviet Union, Romania and other countries. The reserves of diatomite in my country are 320 million tons, and the prospective reserves are more than 2 billion tons. Diatomite has the characteristics of large porosity, strong absorption, stable chemical properties, wear resistance, heat resistance, etc., so it has been widely used in many fields. However, the mined diatomite has a high water content, and the dried raw ore still contains about 30% water. It is still hygroscopic in direct contact with water and becomes mud, so it cannot be used directly; instead, it needs to be dried or baked. After dry treatment, it can be used in industry or food industry. The traditional drying method...

AI Technical Summary

Problems solved by technology

At present, there is no research on the control of the diatomite crushing process, the control of the moisture content after drying, and the control of the particle size of the diatomite after crushing.

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