Wear-resistant self-priming pump lining material prepared on basis of fluoroplastic

Abstract

The invention discloses a wear-resistant self-priming pump lining material prepared on the basis of fluoroplastic, and relates to the technical field of pump valve preparation. The lining material isprepared from the following raw materials in parts by weight: 80-82 parts of polytetrafluoroethylene, 60-62 parts of polyperfluorinated ethylene propylene, 15-25 parts of phenolic resin, 6-8 parts ofmolybdenum disulfide, 3-5 parts of carbon black, 8-10 parts of titanium dioxide, 2-4 parts of ammonium ferrous sulfate, 3-5 parts of barium sulfate, 5-7 parts of magnesium hexasilicate, 3-5 parts of brown fused alumina, 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 a high-strength adhesive. The lining material has the beneficial effects that the process flow is simple, the raw material ratio is reasonable, the raw materials are cheap and are easily available, anti-corrosion performance of conventional fluoroplastic is ensured, meanwhile, a wear-resistant effect is achieved, the effect is better, the raw materials are easy to obtain, the price is low, and the processing is simple.

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 a high speed to make the water in the impeller channel flow to the volute. At this time, a vacuum is formed at the inlet, so that the water inlet check door is opened and suction Air in the tube enters the pump and travels through the impeller channel to the outer edge. 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. It is only necessary to ensure that the pump body has a cer...

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