Gypsum plays an important role in our industrial production. It can be divided into two types: natural gypsum and desulfurization gypsum.However, many people are not clear about the specific concept of "desulfurization gypsum". This article mainly introduces knowledge about desulfurization gypsum.
Desequent gypsum composition
DesulfurationGypsum also has a lot of nicknames, such as smoke, sulfur plaster, sulfur plaster, and FGD gypsum.Like the ingredients of natural gypsum, the content of natural gypsum is more than or or equal to 93%CASO4.2H2O (calcium sulfate).However, the desulfurization gypsum is different from the natural gypsum. The desulfurization gypsum is a by-product generated in the FGD process (using limestone-limestone reaction to recycling sulfur dioxide in energy flue gas).This technology eliminates the slim lime-lime-limestone to eliminate the SO2 flue gas through the dust removal technology, so as to obtain the industrial by-production gypsum, referred to as desulfurization gypsum.The desulfurization gypsum is widely used in the building materials industry. It is of great significance for industrial processing and utilization: it is not only the representative of the recycling of economic projects, which meets the requirements of the state, but also greatly saves the mining of natural gypsum mining.The amount has made outstanding contributions to protecting the environment.
The purpose of desulfurization gypsum
Its main uses are: necessary condensation agents, paper plaster plates, gypsum brush gypsum and sulfuric acid for cement production.In order to adjust the condensation time of the cement, an appropriate amount of two -water plaster must be added to the silicate cement to meet the requirements specified in the cement standard.If there is too much amount, it will reduce the strength of the cement and cause the stability to decrease.In addition to the condensation time in the cement standard, the SO3 content in the cement must not exceed 3.5%, and the range is generally controlled at 1.5 ~ 3%.About 5%of gypsum is required to add in the cement. Due to the large output of cement, the cement industrys demand for gypsum is huge, but most of the cement plants want to buy dried or grain gypsum, which affects the application of desulfurization gypsum.Desulfurized gypsum has been fully utilized in some areas lacking natural gypsum, but when the demand for gypsum is relatively large, desulfurization plaster can still be used.In order to make full use of desulfurization gypsum, it is generally necessary to increase the conditions for the use of desulfurization gypsum, such as the use of desulfurization gypsum for cement slowing agent.
Desert plaster price
The price of desulfurization gypsum is generally 2000 yuan per ton. The price is not very expensive. It can be applied to decoration and medical care. Friends can choose according to their own needs.

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