Box type composite silicon carbide ceramic pump and manufacturing method thereof

Abstract

The invention discloses a box type composite silicon carbide ceramic pump which comprises a pump body and a rear protection plate located on the axial bearing side of an impeller. The impeller is installed on a transmission shaft; the pump body and the rear protection plate are formed by one-time casting of a silicon carbide ceramic composite material in a mold; the impeller is made of the silicon carbide ceramic composite material lined with a metal framework; and the silicon carbide ceramic composite material comprises the following components in parts by mass: 300 to 500 parts of silicon carbide particles, 80 to 120 parts of epoxy resin and 10 to 30 parts of a curing agent. According to the box type composite silicon carbide ceramic pump and the manufacturing method thereof provided by the invention, the silicon carbide ceramic composite material is poured after being vacuumized, and is free of bubbles, uniform in material, few in defect and high in strength; inorganic materials such as silicon carbide are filled with resin, so that the thermal expansion coefficient is low; and the pump body, the protection plate and the impeller are formed through one-time casting, so that the size precision is high, and reprocessing is not needed. Low-temperature pouring is adopted, the cost is low, and no pollutant is discharged in the production process.

Description

technical field [0001] The invention relates to a box-type composite silicon carbide ceramic pump, in particular to a composite ceramic pump used in a desulfurization system and zero discharge of waste water. Background technique [0002] The desulfurization slurry is corrosive and abrasive at the same time. The slurry pumps traditionally used in the desulfurization system mostly use high-chromium alloy materials, which have high cost and short life; the concentrated desulfurization wastewater slurry is more corrosive, and the metal materials are no longer durable. High-quality plastic slurry pumps cannot resist the abrasion of crystals in the slurry. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art, and provide a box-type composite silicon carbide ceramic pump, which can have the characteristics of wear resistance and corrosion resistance. [0004] In order to solve the problems of ...

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Problems solved by technology

[0002] The desulfurization slurry is corrosive and abrasive at the same time. The slurry pumps traditionally used in the desulfurization system mostly use high-chromium alloy materials, which have high cost and short life; the concentrated desulfurization wastewater slurry is more corrosive, and the metal materials are no longer durable. The plastic material slurry pump cannot resist the abrasion of crystals in the slurry

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