Desulfurized gypsum powder sidewalk board
The invention discloses a desulfurized gypsum powder sidewalk board which is prepared from the following raw materials in the formula by percent: 75% to 85% of desulfurized gypsum powder, 4% to 6% of polrvinyl chloride, 8% to 10% of epoxy resin, 1.5% to 2.5% of stearic acid, 2% to 4% of calcium stearate and 0.8% to 1.2% of glaze. A production method comprises the following …
Research on optimizing performance of desulfurization-gypsum …
The obtained semi-aqueous desulfurized gypsum was the original desulfurized gypsum, which was placed in an oven at 180 °C and dehydrated for 2 h under synchronous heating with the box. ... Investigation into the synergistic effects in hydrated gelling systems containing fly ash, desulfurization gypsum and steel mineral powder. Constr. Build ...
Production and resource utilization of flue gas desulfurized gypsum …
Flue gas desulfurized gypsum (FGD gypsum), mainly originates from thermal power plants, smelters, and large-scale enterprise boilers.This article reviews the production in China and the latest beneficial utilizations of FGD gypsum. China is a large coal-consuming country and has always had serious SO 2 emissions. Therefore, the Chinese government has implemented …
Main uses of power plant desulfurization gypsum | LZZG
The desulfurized gypsum powder also contains silica, sodium oxide, calcium carbonate, calcium sulfite, limestone, calcium chloride, magnesium chloride, etc. Compared with other gypsum powder, desulfurized gypsum powder has the characteristics of renewable, small particle size, stable composition, low content of harmful impurities, and high ...
CN112304052A
The invention relates to the field of gypsum powder dehydration, in particular to a vibration dispersion type hot air drying device suitable for dehydrating and drying desulfurized gypsum powder, which comprises a bottom plate, a forming frame, a slope guide frame, a rear side perforated cover plate, a desulfurized gypsum powder vibration dispersion mechanism, a …
CN114230298A
A ceramic mould gypsum powder made of desulfurized gypsum is prepared by mixing the following raw materials: the main material is desulfurized gypsum alpha gypsum powder, and the auxiliary materials are air entraining agent, suspension stabilizer and water-retaining agent. The gypsum powder of the ceramic mold has wider water absorption range, higher compression …
Production and resource utilization of flue gas desulfurized …
Flue gas desulfurized gypsum (FGD gypsum), mainly originates from thermal power plants, smelters, and large-scale enterprise boilers. This article reviews the production in China …
CN115143744A
The invention relates to the technical field of drying machines, in particular to a drying machine for processing desulfurized gypsum powder, which comprises a drying box and a sealing cover arranged at the top of the drying box, wherein a drying cavity and a material receiving cavity are arranged inside the drying box, a material receiving box is inserted into the material receiving …
Evolution of solidified municipal sludge used as landfill cover
This paper utilizes industrial wastes, including slag powder, desulfurized gypsum, fly ash, and construction waste, to solidify municipal sludge and develop a new type of landfill cover material. To investigate the durability of solidified sludge under wet–dry cycles, this study systematically analyzes its mechanical properties—such as volume shrinkage rate, unconfined …
CN216171729U
The utility model discloses a processing device for desulfurized gypsum powder, and relates to the technical field of processing devices. The processing box is arranged on the upper surface of the mounting frame, the telpic hydraulic cylinder is arranged on the lower surface of the mounting frame, the mounting plate is arranged on the lower surface of the telpic hydraulic …
Potential of desulfurized gypsum as a sulfate alternative in …
One such alternative is desulfurized gypsum (DG), a by-product generated by the coal industry to remove sulfur dioxide (SO 2) ... with a purity level of up to 98.0 %, was sourced from Hezhou Shuanglong Powder Co., Ltd. For gypsum, NG was supplied by Hebei Yanguo mineral processing plant, whereas DG was sampled from a power plant in Shenzhen City.
Desulfurized gypsum powder stair armrest
The invention discloses a desulfurized gypsum powder stair armrest which is prepared from the following raw materials in the formula by percent: 65% to 75% of desulfurized gypsum powder, 6% to 10% of polrvinyl chloride, 10% to 14% of epoxy resin, 2.5% to 3.5% of stearic acid, 3.5% to 4.5% of calcium stearate and 2.8% to 3.2% of paint. A production method comprises the …
CN103193503A
The invention discloses a desulfurized gypsum powder composite floor board which is prepared from the following raw materials in the formula by percent: 65% to 75% of desulfurized gypsum powder, 7% to 9% of stabilizer, 4.8% to 5.2% of foaming regulator, 4.8% to 5.2% of AC (Activated Charcoal) foaming agent, 2.8% to 3.2% of stearic acid, 3.8% to 4.2% of calcium stearate, 2.8% …
CN218506862U
The utility model relates to a desulfurization gypsum technical field specifically is material lifting device is used in desulfurization gypsum powder processing, including basic slide rail, movable mounting has first slide and second slide on the slide rail of basis, and equal fixed mounting has the seat that goes up and down on first slide and the second slide, fixed mounting has the side ...
desulfurized gypsum, also known as FGD gypsum
Desulfurized gypsum is a by-product of the FGD process, a technology that uses lime-limestone to recover sulfur dioxide from flue gas from burning coal or oil. The technology is to grind lime …
Desulfurized gypsum board powder cooling device
The utility model relates to a gypsum board powder cooling technical field discloses a desulfurization gypsum board powder cooling device. The utility model discloses in, including the cooler bin, the top surface fixed mounting of cooler bin has the protection casing, the inside fixed mounting of protection casing has a pay-off section of thick bamboo, the outer wall fixed …
Hanmero desulfurization gypsum powder
Our products include high-quality desulfurized gypsum powder and various gypsum-based solutions, such as lightweight plaster, self-leveling gypsum, and energy-efficient wall panels. Come visit our factory for genuine collaboration and success! Contact: Mr He Tel.: +86 Email: sales@hanmero.
desulfurized gypsum, also known as FGD gypsum
Desulfurized gypsum is a by-product of the FGD process, a technology that uses lime-limestone to recover sulfur dioxide from flue gas from burning coal or oil. The technology is to grind lime-limestone into powder through a desulfurized gypsum mill, and then configure it into a slurry, so that the SO2-containing flue gas after dust removal is ...
CN101993231A
The invention discloses a method for preparing gypsum powder for a ceramic mould in the ceramic industry, wherein the desulfurized product of power plants, i.e., desulfurized gypsum, is mainly used as a main raw material for the gypsum powder for the ceramic mould. The method comprises the steps of: calcining the desulfurized gypsum in a calcining kiln, and then doping 1 …
A comprehensive review of flue gas desulphurized gypsum: …
Flue Gas Desulphurized Gypsum (FGDG) is a by-product generated by the thermal power industry to remove sulfur dioxide (SO 2) from flue gas emissions. This paper …
Main uses of power plant desulfurization gypsum | LZZG
The gypsum desulfurized in power plants is only a primary product and needs to be reprocessed. However, as a kind of waste, we must rationalize resources and can do many …
Effect of Waste Refractory Powder and Flue Gas Desulfurized Gypsum …
The gypsum was baked at the proper temperature of 200 °C for 60 min and then mixed into slag powder forming Compound-slag in which SO3 content was controlled at the optimum ratio of 3.5%.
A comprehensive review of flue gas desulphurized gypsum: …
The evolution of the morphology is determined by the preferential adsorption of the modifier on different surfaces of the α-HH gypsum crystals. These results and fundamental understanding should provide useful information for improving the synthesis of α-HH gypsum using flue gas desulfurized gypsum.
Hanmero desulfurization gypsum powder
Wuhan Hanmero Building Materials Co., Ltd. products include high-quality desulfurized gypsum powder and various gypsum-based solutions, such as lightweight plaster, self-leveling gypsum, …
Solid waste-based dry-mix mortar using fly ash, carbide slag, …
For example, Duan et al. [7] used FA, steel slag, and desulfurized gypsum to prepare cementitious composite materials; they found that the three ingredients had a synergistic effect. ... Self-cementitious property of steel slag powder blended with gypsum. Construct Build Mater, 113 (2016), 10.1016/j.conbuildmat.2016.03.102. Google Scholar
(PDF) Performance Analysis and Improvement of Gypsum …
Three batches of desulfurized gypsum with different chloride ion content were used to prepare gypsum . board. ... China Powder Technology, 2008,01:46-49.
Method for preparing gypsum powder for ceramic mould …
The invention discloses a method for preparing gypsum powder for a ceramic mould in the ceramic industry, wherein the desulfurized product of power plants, i.e., desulfurized gypsum, is mainly used as a main raw material for the gypsum powder for the ceramic mould. The method comprises the steps of: calcining the desulfurized gypsum in a calcining kiln, and then …
High value-added utilization of desulfurized building gypsum …
The utilization of desulfurized building gypsum as raw material for gypsum-based self-leveling mortar (GSL) is limited by its low strength and poor water resistance. The objective of this study is to enhance comprehensive properties of GSL and prepare qualified desulfurized building gypsum-based self-leveling mortar that can be effectively applied in practical …
Preparation of superfine and semi-hydrated flue gas …
In this paper, we utilize a superheated steam powdered jet mill with different classifier frequencies (20, 35, and 45 Hz) to modify FGD gypsum. Then, the resulting 5% …
Recycling waste gypsum and calcium carbide slag for the …
In this study, the potential of using desulfurized gypsum (DG), phosphogypsum (PG), gypsum dihydrate (G), and calcium carbide slag (CS) in the production of supersulfated cement (SSC) was investigated. ... and microstructure of one-part fly ash geopolymer activated by calcium carbide slag and sodium metasilicate powder," Constr. Build. Mater ...