Reinforced composite rubber filter plate material

Abstract

The invention relates to a preparation method of a novel reinforced composite rubber filter plate material with good pressure-resistant property, anti-corrosion property and sealing property for a press filter and a filter plate. The preparation method comprises the following steps of firstly, activating the surfaces of graphite powder and fiber, and coating glue; mixing the graphite powder with fiber after surface treatment at high speed to form a graphite mixture; adding into a waterborne surface treatment solvent, dispersing and mixing; adding natural adhesive slurry, stirring, removing liquid, and drying the adhesive-coated fiber under the vacuum condition for standby use; mixing: respectively plasticizing the rubber, then uniformly mixing, and sequentially adding the surface-treated fiber, a scorch retarder, an accelerant and other additives, graphite, carbon black, a processing additive, and a vulcanizer to mix; thinning the uniformly mixed rubber material, and drawing into sheets for standby use; performing high-temperature and high-pressure compounding on a welded steel skeleton after surface treatment and a fiber enhancing rubber sheet on a die of a vulcanizing machine, vulcanizing and forming. The preparation method has the advantages that the property of the filter plate of the press filter is good, the service life is long, and the application range of the press filter is broadened.

Description

technical field [0001] The present invention relates to the field of filter plate manufacturing, which is a core component of a filter press for solid-liquid separation equipment, and specifically relates to a filter plate material that can be widely used in various industries such as chemical industry, environmental protection, and metallurgy with high temperature resistance, pressure resistance, and corrosion resistance. The preparation method and the preparation method of the filter plate. Background technique [0002] The commonly used filter plate material of the filter press is mainly composed of polypropylene and its modified materials. In the large-scale solid-liquid separation in the chemical industry, environmental protection and other industries, it is obvious that the environmental temperature adaptability is not strong, the sealing is poor, and the filter often occurs during operation. The plate is broken or cracked, which directly affects the continuity of prod...

AI Technical Summary

Problems solved by technology

Due to the limitations of the performance of polypropylene materials and ordinary modified rubber materials, the current filter plates are used for waste liquid or raw materials under high requirements such as heat resistance, corrosion resistance, high pressure and low temperature environments. Its performance is obviously not suitable for the separation of solid-hydraulic filtration, which affects its working efficiency, service life and application range. At the same time, the production cost is also high, which cannot meet the new needs of users.