Desulfurization pump

A desulfurization pump is a type of centrifugal pump specifically used to handle the sulfur dioxide flue gas produced during the combustion of fossil fuels. For example, in steel plants, coal-fired power plants, and coking plants, a large amount of flue gas containing sulfur dioxide is produced during the production process.

The flue gas generated from the combustion of fossil fuels is sprayed with a mixture of water and limestone in the flue gas absorption tower, causing a chemical reaction between the sulfur dioxide and the alkaline limestone slurry, thereby removing the sulfur dioxide from the flue gas and generating gypsum slurry. After dehydration, the gypsum slurry can be used as a good building material. Apart from limestone, other chemical substances can also be used as absorbents for flue gas desulfurization.

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Features

The desulfurization process of flue gas is basically a neutralization chemical reaction. The resulting slurry is corrosive and contains solid particles. Therefore, desulfurization slurry pumps must have corrosion resistance and wear resistance. Materials commonly used in the production of desulfurization pumps include cast iron, and corrosion-resistant alloys, and the impellers are made of duplex stainless steel or high-chromium martensitic cast iron.

Types of Kaiquan Desulfurization Pumps

Main desulfurization slurry circulation pump: The KQTL(R) series desulfurization pump is a single-stage, single-suction horizontal centrifugal pump developed and designed by Kaiquan Pump Group for the desulfurization and purification system of coal-fired units in thermal power plants. It is mainly used as a circulation pump in the wet FGD (Flue Gas Desulfurization) system to convey limestone and gypsum slurry. The product incorporates features from similar domestic and foreign products, offering advantages such as a wide flow range, safe and reliable operation, convenient maintenance, high efficiency, energy saving, and long service life.
This series of pumps is primarily used as a circulation pump in the wet FGD system and can also be used to convey liquids with corrosion and small solid particles in industrial sectors such as metallurgy, mining, coal, and chemical industry, as well as in municipal sewage disposal and river dredging.
Pumps for desulfurization auxiliary systems:
(1) KDTX series desulfurization pump is specifically developed and designed by Shanghai Kaiquan Pump Group for auxiliary systems in the desulfurization and purification systems of coal-fired units in thermal power plants. It is mainly used as a pump for auxiliary systems in the wet FGD system to convey limestone and gypsum slurry. This series of pumps adopts a single-shell design, making the pump more compact, lightweight, and easier to maintain. It integrates the advantages of similar products at home and abroad in terms of hydraulic model design, structural design, and wear-resistant and corrosion-resistant materials, and innovates upon them. Its performance indicators exceed industry standards and are at the forefront domestically. The technical conditions of the product comply with national standards.
(2) Submersible desulfurization pump: This series of pumps has a vertical single-stage single-suction cantilever centrifugal pump structure with a semi-open impeller and mixing blades at the inlet extension of the impeller. It is widely used and convenient for users.

Desulfurization pump

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