Which Grinding Mill Can Be Used For Gypsum Desulfurization In Power Plant? What Are The Uses Of Desulfurization Gypsum In Power Plant?

At present, the most extensive and effective method for flue gas treatment in coal-fired power plants in China is desulfurization with gypsum. Desulfurized gypsum is an industrial by-product obtained after SO2 treatment in power plant. The comprehensive treatment technology of desulfurization gypsum has been preliminarily mature. At present, the state has also issued relevant industrial policies in all aspects, which has brought good opportunities for the comprehensive utilization of desulfurization gypsum.

Therefore, what kind of grinding mill is used for gypsum desulfurization in power plant? What are the purposes of grinding with gypsum desulfurization grinding mill in power plant?

Composition and application of desulfurized gypsum

Desulfurization gypsum, also known as FGD gypsum (flue gas desulfurization gypsum), is an industrial by-product gypsum obtained after desulfurization and purification of flue gas generated after combustion of sulfur-containing fuel (coal, oil, etc.), and its composition is calcium sulfate dihydrate (caso4.2h2o).

Desulfurization gypsum in thermal power plant is mainly produced by limestone gypsum wet desulfurization process. In this method, limestone is used as desulfurizer, the absorbent slurry is injected into the tower, fully contacted and mixed with the flue gas, so as to wash the flue gas, and then SO2 (in the flue gas) reacts with CaCO3 (in the slurry) and strong oxidizing air (blown in). This reaction produces calcium sulfate dihydrate.

Desulfurized gypsum can be used as cement retarder, and it can also be mixed with other materials. For example, desulfurization gypsum can be mixed with other mixtures such as coal gangue and slag, and then the mixed raw materials can be sent to the raw material warehouse for cementing. This will solve the problem of moisture and viscosity of desulfurization gypsum, but adding the batching part of loader will produce dust, which can not ensure the uniformity. The addition of desulfurized gypsum and mixed materials in cement is unstable, which is not conducive to the stability and adjustment of cement properties. However, the briquetting machine can be formed by using desulfurized gypsum. Under the action of external mechanical force, the viscous powdery desulfurized gypsum is pressed into coal by rolling molding machine, and then the gypsum briquette is put into the raw material warehouse for cement preparation. The problem of unstable batching is solved, and the stability of cement performance is effectively guaranteed.

Among several industrial by-products gypsum, desulfurized gypsum is the best as cement retarder. Its composition is similar to that of natural gypsum, and it is a good substitute for natural gypsum. In addition to being used as cement retarder, desulfurized gypsum has many other uses. For example, calcined into mature gypsum for gypsum building materials: high-strength gypsum, gypsum, gypsum block, waterproof gypsum board, fiber gypsum board and gypsum slag board; Used as agricultural fertilizer; Production of subgrade backfill materials; Production of filling tailings, etc.

In short, with the vigorous development of desulfurization industry, desulfurization gypsum technology industry will make progress in the future development, and the problem of resource utilization will be further solved, which is also conducive to solving the problems of environmental sanitation and energy resources. HLM vertical power plant gypsum desulfurization grinding mill can help you increase production and efficiency.

If you have a grinding demand for processing desulfurization gypsum in power plant, you can consult the manufacturer of desulfurization gypsum grinding mill in HCMilling(Guilin Hongcheng) power plant online. Please contact mkt@hcmilling.com or call at +86-773-3568321, HCM will tailor for you the most suitable grinding mill program based on your needs, more details and quotation please check www.hcmilling.com.