Technical feasibility

Desulfurization gypsum achieves the natural high-quality gypsum dihydrate grade, which is an ideal raw material for making stucco gypsum, and the new gypsum mortar made from it is compared with traditional cement lime mortar. It has the characteristics of light weight, high strength and energy saving. And the bonding performance is better. It is not easy to shell and crack, and can effectively solve the thermal insulation problem of various walls such as concrete shear walls.
The application of desulfurized gypsum in the gypsum board production process can reduce the slurry-to-solid ratio. Increased slurry flowability. Reduce the weight of the plasterboard . Improve the quality of plasterboard . Improve the mechanical strength of gypsum board. Reduce the breakage rate of the finished product of gypsum board and reduce the wear and tear of the equipment.
Desulfurization gypsum, thermal power plant waste, mineral admixtures are formulated into roadbed backfill materials in the ratio of m(50): m(40): m(10). In the experiment, when the backfill material is backfilled for 28d, the strength reaches the standard of 325# water sludge, which also meets the relevant requirements in terms of expansion rate, dissolution rate and other application properties affecting the subgrade material. Experiments on a series of desulfurized gypsum products have shown . Their performance meets the requirements of relevant national standards. It can be used as a substitute for natural plaster; Moreover, the performance of desulfurized building gypsum is better than that of natural building gypsum in compressive and flexural strength.

Production process requirements and price advantages

According to the investigation . If the paper gypsum board production plant uses desulfurized gypsum as the production raw material. It is necessary to add a set of drying and calcination systems to the traditional gypsum board manufacturing process, and other technologies and equipment processes do not need to be changed. For cement enterprises. If you want to use desulfurized gypsum as a retarder, you need to build a desulfurization gypsum storage silo and batching warehouse, and make some modifications to the feeding system and supporting metering equipment (belt scale) and conveying equipment. The key is to take good anti-blocking measures. The rest of the process is basically the same as the use of natural gypsum. If the power plant can dry the desulfurized gypsum for granulation. Pellets are supplied to cement plants. This problem can be basically solved. Compared to the use of natural plaster. The use of desulfurized gypsum eliminates the need for crushing processes.
The factory price of desulfurized gypsum is generally lower than that of natural gypsum for areas lacking natural gypsum. Among the costs of purchasing natural gypsum. Shipping costs are costs that cannot be cut. If the enterprise adopts desulfurization gypsum from a local power plant. It will greatly reduce the cost of raw materials for production.
In summary, in view of the good quality and economic benefits of desulfurization gypsum and the feasibility of utilization. Predictable . The application of desulfurized gypsum contains huge market opportunities. When producing building materials products in the near future. There will be a large number of desulfurized gypsum to replace natural gypsum, and those economically developed areas where natural gypsum is scarce and desulfurized gypsum resources are rich will be better.