Wear-resistant self-priming pump liner prepared based on fluorine plastics

Abstract

The invention discloses a wear-resistant self-priming pump liner prepared based on fluorine plastics, and relates to the technical field of pump valve preparation. The wear-resistant self-priming pumpliner is prepared from, by weight, 80-82 parts of polytetrafluoroethylene, 60-62 parts of polyperfluoro-ethylene propylene, 15-25 parts of phenolic resin, 6-8 parts of molybdenum disulfide, 3-5 partsof carbon black, 8-10 parts of titanium dioxide, 2-4 parts of Mohr's salt, 3-5 parts of barium sulfate, 5-7 parts of magnesium hexasilicate, 3-5 parts of brown aluminum oxide, 3-5 parts of nano-silicon carbide, 6-8 parts of nano-zinc oxide, 2-4 parts of boron oxide, 6-8 parts of glass fibers and 40-50 parts of high-strength mixed adhesives. The wear-resistant self-priming pump liner has the advantages that the technological process is simple, raw material ratio is reasonable, raw materials are inexpensive and easy to obtain, the liner has better wear-resistant effects while the anticorrosionperformance of a traditional fluorine plastic is ensured, and the liner is low in price and simple to process.

Description

technical field [0001] The invention relates to the technical field of pump valve preparation, in particular to a wear-resistant self-priming pump lining material prepared based on fluoroplastics. Background technique [0002] The working principle of the self-priming pump is to fill the pump casing with water before starting the pump. After starting, the impeller rotates at high speed to make the water in the impeller channel flow to the volute. The air in the tube enters the pump and travels through the impeller channel to the outer edge. The self-priming pump is a self-priming centrifugal pump, which has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long life, and strong self-priming ability. There is no need to install a bottom valve in the pipeline. Just ensure that there is a quantitative suction liquid stored in the pump body before work. Different liquids can use self-priming pumps of different materi...

AI Technical Summary

Problems solved by technology

There is no need to install a bottom valve in the pipeline. Just ensure that there is a quantitative suction liquid stored in the pump body before work. Different liquids can use self-priming pumps of different materials. With the continuous improvement of technology, self-priming pumps are also used in various fields. Diverse, in some chemical companies, because a large amount of acid and alkali and highly corrosive liquids need to be transported, the traditional self-priming pump will have corrosion and aging problems when used, and the concentration of these problems will lead to self-priming The pump is aging and damaged

[0003] Fluorine-lined self-priming pumps have solved the corrosion problem of the above-mentioned self-priming pumps in the field of pump valves at the present stage. The process is made of metal casing tightly lined with fluoroplastics. The main flow-passing parts, impeller and pump cover, are made of metal inserts and outsourced with fluoroplastics at high temperature. The application of this method fully solves the aging problem of self-priming pumps. , but there will still be some disadvantages in actual use

[0004] Fluoroplastics are generally plastic materials. In practical applications, due to different application fields, the fluoroplastics in the self-priming pump will transport different materials during normal use. In the industrial or chemical field, some mixed with a large amount of When the mixed liquid of particulate matter is pumped, due to the strong hardness of the particulate matter, the inner lining will be worn, scratched, even cracked and deformed during long-term transportation. In the lightest cases, the actual pump valve will be damaged, resulting in increased maintenance costs and affecting work efficiency. , the severe one will cause the liquid in the pump to overflow, and the harm caused is immeasurable