Hotan desulfurization gypsum dryer, quartz sand ball mill

型号：

脱硫石膏烘干机

1. Overview of desulfurization gypsum dryer: In recent years, the country’s environmental protection technology requirements for coal-fired power plants have increased. my country’s control over the emission of sulfur dioxide in coal-fired flue gas from power plants has become increasingly tight. Desulfurization of power plants is imperative. At present, the processing technology and equipment of desulfurized gypsum are not completely the same as those of natural gypsum, such as material transportation, dust treatment, calcination process, etc.: Desulfurized gypsum is also different from natural gypsum in terms of physical properties. For example, desulfurized gypsum has high purity and large amounts of free water. , fine particle size, uniform particle size distribution, poor gradation, large water consumption for thickening, and more water-soluble salts. It is also worth noting that desulfurization gypsum and natural gypsum have different sources. Unreacted gypsum is the main component. The presence of impurities and incompletely oxidized subcalcium, and the varying states of impurities. In addition, differences in technical processing in the desulfurization production process, differences in limestone raw material composition, and differences in the fineness of processed limestone will all affect the quality of desulfurization gypsum.
2. The main features of the desulfurization gypsum dryer:
The dryer has strong overload resistance, large processing capacity, low fuel consumption, and low drying cost
The desulfurization gypsum dryer adopts downstream flow In the drying method, hot air and wet materials enter the dryer from the same side. High-temperature air can be used to obtain high evaporation intensity. The outlet temperature of the dryer is low and the thermal efficiency is high
The desulfurization gypsum dryer can be used according to the different moisture content of the material. Change the operating parameters so that the material can form a stable full-cut fabric curtain in the dryer barrel, which makes the heat exchange more complete
. The new feeding and discharging device prevents the drum dryer from being blocked by the feeding material and causing the failure of the material. Continuous, uneven and material return phenomena reduce the load of the dust removal system
. The desulfurization gypsum dryer achieves zero horizontal thrust, greatly reducing the wear of the supporting wheel, and the cylinder operation is stable and reliable
, The dryer adopts an aligning supporting wheel device, so that the cooperation between the supporting wheel and the rolling ring is always in linear contact, thus greatly reducing wear and power loss
The desulfurization gypsum dryer can be adjusted and controlled according to user requirements The moisture content of the final product has reached ultimate customer satisfaction.
Some components (induced draft fan, pipeline, driving device) are shown in the figure below:
3. Working principle of desulfurization gypsum dryer:
Desulfurization gypsum enters the rotary dryer from the feeding device , drying is carried out along the flow. The desulfurized gypsum is picked up and scattered under the action of the lifting plate of the dryer in the shape of a spiral curtain and hot air is introduced for heat exchange. The desulfurized gypsum is affected by the inclination of the dryer itself and the role of the spiral lifting plate. down, advance slowly, and finally be dried and discharged from the discharge port at the end of the dryer.