Method for preparing reinforced composite rubber material filter plate

Abstract

The invention relates to a novel method for preparing a filter press reinforced composite rubber material filter plate with pressure resistance, corrosion resistance and excellent sealing property. The preparation method comprises the following steps: performing activated coating treatment on graphite powder and fiber surfaces, mixing the graphite powder and fibers subjected to surface treatment at a high speed so as to obtain a graphite mixture, adding the mixture into a water-based surface treatment solvent, dispersing and mixing, adding a natural rubber adhesive for stirring and liquid removing, performing vacuum drying, and the coating the fibers for later use; mixing, namely respectively mixing the rubber, uniformly mixing, sequentially adding the fibers subjected to surface treatment, a scorch retarder, an accelerant and other small materials, graphite, carbon black, processing aids and a vulcanizing agent for mixing, and performing thin-passing pulling on the uniformly mixed rubber for later use; and performing high-temperature high-pressure compounding and vulcanization molding on a steel framework and fiber reinforced rubber sheets welded and subjected to surface treatment. The filter press filter plate disclosed by the invention is excellent in performance and long in service life, and the application range of the filter press is widened.

Description

technical field [0001] The invention relates to the field of manufacturing filter plates, which are core components of filter presses for solid-liquid separation equipment, and in particular to a method for preparing filter plates for high-temperature, pressure-resistant, and corrosion-resistant filter presses that can be widely used in various industries such as chemical industry, environmental protection, and metallurgy. . 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 production and causes secondary pollution of the production environment i...

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.