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Method for reducing moisture content of flue gas desulfurization gypsum product
The invention relates to the technical field of gypsum wet desulphurization, in particular to a method for reducing the moisture content of a flue gas desulfurization gypsum product, which sequentially comprises the following steps: S1, primary dehydration: treating gypsum slurry by using a cyclone, and taking underflow of the cyclone to obtain primary dehydrated slurry; and S2, a second-stage dehydration step: treating the first-stage dehydrated slurry by using a vacuum belt dehydrator, and controlling the thickness of a filter cake to be 10-45mm to obtain a gypsum product. According to the scheme, the technical problem that the water content of a gypsum product produced by an existing process is relatively high is solved, the method can be applied to practical operation of gypsum dehydration in wet flue gas desulfurization, the water content of the gypsum product is reduced, and the quality of the gypsum product is improved.
本发明涉及石膏湿法脱硫技术领域，具体涉及一种降低烟气脱硫石膏产品含水率的方法，包括以下依次进行的步骤：S1一级脱水步骤：使用旋流器处理石膏浆液，取旋流器的底流，获得一级脱水浆液；S2二级脱水步骤：使用真空皮带脱水机处理一级脱水浆液，并控制滤饼的厚度为10‑45mm，获得石膏产品。本方案解决了现有工艺生产的石膏产品的含水量较高的技术问题，可以应用于湿法烟气脱硫中的石膏脱水的实践操作中，降低石膏产品的含水量和提升石膏产品的品质。
Method for reducing moisture content of flue gas desulfurization gypsum product
The invention relates to the technical field of gypsum wet desulphurization, in particular to a method for reducing the moisture content of a flue gas desulfurization gypsum product, which sequentially comprises the following steps: S1, primary dehydration: treating gypsum slurry by using a cyclone, and taking underflow of the cyclone to obtain primary dehydrated slurry; and S2, a second-stage dehydration step: treating the first-stage dehydrated slurry by using a vacuum belt dehydrator, and controlling the thickness of a filter cake to be 10-45mm to obtain a gypsum product. According to the scheme, the technical problem that the water content of a gypsum product produced by an existing process is relatively high is solved, the method can be applied to practical operation of gypsum dehydration in wet flue gas desulfurization, the water content of the gypsum product is reduced, and the quality of the gypsum product is improved.
本发明涉及石膏湿法脱硫技术领域，具体涉及一种降低烟气脱硫石膏产品含水率的方法，包括以下依次进行的步骤：S1一级脱水步骤：使用旋流器处理石膏浆液，取旋流器的底流，获得一级脱水浆液；S2二级脱水步骤：使用真空皮带脱水机处理一级脱水浆液，并控制滤饼的厚度为10‑45mm，获得石膏产品。本方案解决了现有工艺生产的石膏产品的含水量较高的技术问题，可以应用于湿法烟气脱硫中的石膏脱水的实践操作中，降低石膏产品的含水量和提升石膏产品的品质。
Method for reducing moisture content of flue gas desulfurization gypsum product
一种降低烟气脱硫石膏产品含水率的方法
LUO XIN (author) / XIA QILIN (author) / ZHANG CHUAN (author) / MA JIN (author) / YANG YIRU (author)
2023-04-21
Patent
Electronic Resource
Chinese
IPC:
B01D
SEPARATION
,
Trennen
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
Limestone-gypsum flue gas desulfurization process
Elsevier | 1986
Flue Gas Desulfurization Gypsum: Technology and Market Developments
| British Library Conference Proceedings | 1997
Study on Preparation of High Strength Gypsum by Flue Gas Desulfurization Gypsum
| British Library Conference Proceedings | 2013