Production method of semi-hydrated gypsum powder

A production method and technology of gypsum powder, which is applied in the production field of hemihydrate gypsum powder, can solve the problems of huge equipment investment, large installed capacity, and large wind resistance, and achieve low construction and operation costs, reasonable structural layout, and small footprint Effect
CN101734870AInactive Publication Date: 2010-06-16沈阳康环脱硫石膏综合利用有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
沈阳康环脱硫石膏综合利用有限公司
Publication Date
2010-06-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a production method of semi-hydrated gypsum powder. The production method has the technical points that gypsum materials are conveyed to an electronic belt scale through a gypsum conveyer system and then enter a turbulence breaking drier through a hopper; meanwhile, high-temperature hot wind generated by a hot wind furnace directly enters the turbulence breaking drier to quickly dry the gypsum materials, and drying and sintering are finished in the drier in one step; generated high-concentration powder materials are wrapped and held by hot wind and directly enter a vortex sedimentation drier arranged above the turbulence breaking drier, and after carrying out drying and gas-liquid separation through the vortex sedimentation drier, dry materials are discharged from a discharge outlet of the vortex sedimentation drier and fall on a first scraper conveyer; the dried and sintered gypsum powder are conveyed to a feed inlet of an aging device by the first scraper conveyer; meanwhile, a second draught fan is started to suck the materials into the aging device, and the materials are discharged on the first scraper conveyer through a discharge outlet of the aging device after aging and conveyed to a feed inlet of a bucket type lifter through the horizontal scraper conveyer; and then the materials are conveyed to a second scraper conveyer through the bucket type lifter and fall in a tempering storage silo through a rotary valve. The production method can improve the product quality, reduce the energy consumption and reduce occupation area.
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Description

technical field

[0001] The invention relates to a production method of building materials, in particular to a production method of hemihydrate gypsum powder. Background technique

[0002] With the rapid development of the national economy, the improvement of people's living conditions and the prosperity of business, the construction industry has developed rapidly. Therefore, the consumption of building gypsum powder has been greatly increased. The main component of gypsum powder for construction is dihydrate gypsum. To make it a practical building material, it must remove crystal water to make β-type hemihydrate gypsum. This process is called calcination of gypsum.

[0003] According to the characteristics of desulfurized gypsum, the key to making it into high-quality building gypsum powder lies in the drying, calcination and post-processing procedures. At present, there are roughly two representative processes at home and abroad:

[0004] 1. Integrated process of airflow ...

Claims

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