Desulfurization pump head part (including front and rear pump casing, volute, front and rear fenders, impeller, etc.) of different structures, the rest of the structure similar to the same series of transmission parts, according to the following pump head part, the shaft seal part and the transmission part, Respectively described the structural features. 1, pump head part: GMZ series pump is a double pump shell structure, that is, before the pump casing, after the pump casing and with replaceable over-current part (including the impeller, volute, the front guard, rear guard). Front and rear pump housing according to the working pressure, made of gray cast iron or ductile iron, vertical in the open, bolted, after the pump casing and the bracket with a bolted connection, the pump outlet can be rotated at eight angles installation, impeller front and rear Cover with a back blade to reduce leakage, improve pump life and efficiency. All types of pump imports are horizontal, from the direction of transmission to see the pump for clockwise rotation. 2, shaft seal part: There are three forms of shaft seal, deputy impeller shaft seal and packing shaft seal, mechanical seal. (1) Vice impeller shaft seal: When the positive pressure of the pump inlet is not more than 10% of the pump outlet pressure, the single-stage pump or the multistage third-stage pump can adopt the auxiliary impeller shaft seal, Dilution of pulp, sealing effect is good. (2) packing shaft seal: packing shaft seal structure is simple, easy maintenance, the need to use shaft sealing water, not suitable for use in the case of impeller shaft seal and pump suction conditions can be used packing shaft seal. (3) mechanical seal: For not suitable for the above two kinds of shaft seal conditions, the use of mechanical seal to reduce the number of shaft seal part of the maintenance. 3, transmission parts: This series of pumps are used in the same series of transmission, including brackets and bearing components, pump shaft diameter, good rigidity, short cantilevers, in harsh conditions will not bend and vibration. Bearing selection of single row tapered roller bearings and angular contact ball bearings combined use, can withstand the maximum axial and radial pump load, bearings using lithium-based grease lubrication, the advantages of this lubrication are: film strength; grease adhesion Good, not easy to drain, use a longer time; simple seal, the bearing body is equipped with sealed end caps, can effectively prevent the pulp and other dirt into the bearings. More Keyword Search: Desulfurization pump