Rotary autoclaved drying kettle

Abstract

A rotary autoclaved drying kettle comprises a horizontally arranged cylindrical housing, is equipped with a rotary supporting wheel group and a rotary driving mechanism, and is characterized in that an air inlet main pipe is arranged at one end of the housing; a discharging air pipe is arranged at the other end of the housing; a rotary joint A sleeves the air inlet main pipe; an air inlet run pipe and condensed water discharging pipes are mounted on the rotary joint A; a material holding tank is mounted in the housing; one end of an interlayer between the housing and the material holding tank is communicated with the air inlet main pipe; an air inlet is formed in the front end of the material holding tank; a discharging air opening is formed in the rear end of the material holding tank and is communicated with the discharging air pipe; a feed pipe mounted on the housing extends into the material holding tank; a sealing cover is arranged at the outer end opening of the feed pipe in a matched manner; a siphon pipe is mounted on the rotary joint A, and extends into the bottom area of the vapor heat-insulating interlayer. The rotary autoclaved drying kettle has the advantages that the design is unique and multi-purpose; the equipment investment is greatly reduced; the processes of the production technology are simplified; the production efficiency is high; the product quality is good; the rotary autoclaved drying kettle is mainly used for production of alpha-type semi-hydrated gypsum.

Description

technical field [0001] The invention relates to industrial raw material production and processing equipment, which is a rotary autoclaved drying kettle, mainly used for the production of α-type hemihydrate gypsum. Background technique [0002] At present, the preparation methods of α-type hemihydrate gypsum mainly include autoclave method and hydrothermal method. The autoclave method is to put the block granular material into the autoclave and inject saturated steam to make the dihydrate gypsum into α-type hemihydrate gypsum under a certain temperature and pressure, and then send it to the drying kiln for drying. After the drying is completed, it is crushed and ground As a finished product, this method has low efficiency and low product quality; the hydrothermal method is to stir and mix the powdery dihydrate gypsum and the aqueous solution added with a crystal modifier first, then place the slurry in the reactor, and Under temperature and pressure, after a certain period o...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of large equipment investment, long process production cycle, large energy consumption and low production efficiency in the existing α-type hemihydrate gypsum production method, and to provide a rotary steamer for professionally producing α-type hemihydrate gypsum. Pressure Drying Kettle

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