Continuous production device for calcining and whitening black talc and production process thereof

Abstract

The invention discloses a continuous production device for calcining and whitening black talc and a production process thereof. The continuous production device comprises a coarse particle suspension preheater, a white talc rotary kiln and a grate type cooling machine with a heat preservation kettle, which are sequentially connected; the production process comprises the following steps: A. superfine-grinding black talc; B. preheating by a preheater at the kiln tail; C. calcining in the rotary kiln; and D. preserving heat by the heat preservation kettle and cooling. The design of the coarse particle suspension preheater is adopted and the tail gas waste heat of the white talc rotary kiln is fully utilized, so that the energy consumption is reduced; the calcining efficiency is improved due to a pickaxe-shaped spiral pushing device of the rotary kiln and spirally-arranged heat-resisting bricks with ribs, and the grate type cooling machine with the heat preservation kettle can achieve excellent heat-preservation and cooling effects; and the continuous production device can achieve large-scale continuously-mechanical production for calcining white talc and adopts center-control automatic operation, so as to greatly improve the labor productivity and achieve stable quality and environment-friendly production, thereby having good economic and environment-protection benefits.

Description

Technical field [0001] The present invention involves a black slippery stone production technology, especially a kind of black slippery stone burn and white continuous production device and its production process. Background technique [0002] At present, according to the black slippery stone, black slippery white white white white white white white white white white white bleaching and burning white white white white, of which the chemical bleaching and white white effect is poor.Single -machine production capacity is closely related to the chosen burning white increase process. As of now, the black slippery stone burning process that is eliminated, normal production, testing and intended to be constructed includes soil kiln (Xiao Li kiln), tunnel kiln, wheel kiln, and rotary kiln.The table is a comparison table for different burning crafts. [0003] [0004] [0005] [0006] The existing wheel kiln burn the white slipstick production process talc raw materials requires a...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the shortcomings of existing black talc production devices and processes, such as poor adaptability to materials, continuous production, automatic production, and high yield, the present invention provides a continuous production device for black talc calcined and whitened and its production process