Pressurizing type filtering equipment suitable for treating fine and hard materials

By designing pressurized filtration equipment and related accessories in the filtration equipment, the equipment seal failure, severe wear and easy material blockage during fine and hard material treatment is solved, and more efficient material dehydration and lower maintenance costs are achieved, while improving environmental protection conditions.

CN119701463APending Publication Date: 2025-03-28SHANDONG LAIWU COAL MINING MACHINERY
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Patent Information

Application Number
CN202311277159.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-28
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

When existing filtration equipment deals with fine and hard materials such as phosphorus tailings and iron concentrate, it is easy to have problems such as seal failure of overflow parts and moving parts, severe wear, and easy blockage of materials, resulting in high equipment failure rate, high operating and maintenance costs, and poor dehydration effect of materials, affecting the stability of the entire production system and causing environmental protection problems.

Method used

A pressurized filtration equipment is designed. The filter is placed in a closed pressurized chamber and uses compressed air to provide a gas pressure difference. The ore slurry enters the filter through the feed pipe. The filter plate forms a pressure difference through the gas-water separator to realize moisture discharge and solid particles collection. The equipment is equipped with a pneumatic agitator, a vibrating discharge device and a roller set with high sealing properties to ensure the normal operation of the equipment in harsh environments.

Benefits of technology

It effectively solves the problems of equipment seal failure, severe wear and easy material blockage during the filtration and dehydration of fine and hard materials, improves the operating stability of the equipment and the dehydration effect of material, reduces maintenance costs, and prevents dust from escape, improving environmental protection conditions.

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Abstract

The invention relates to pressurized filtering equipment which is suitable for filtering and dewatering fine and hard materials such as phosphate tailings and iron ore concentrates, and adopts the technical scheme that a filter is arranged in a closed pressurized bin filled with compressed air, and ore pulp enters a tank body of the filter through a feeding pipeline in the bin; water in ore pulp in the tank body is discharged through the filter disc immersed in liquid, solid particles are collected on the surface of the filter disc to form a filter cake, and along with rotation of the filter disc, after the filter cake is dried to reduce the water, the filter cake is discharged to the scraper conveyor in the discharging area, then conveyed to the discharging device through the scraper conveyor and intermittently discharged out of the machine through the discharging device. The method has the beneficial effects that the filter fan suitable for treating fine and hard materials such as phosphate tailings and iron ore concentrate is adopted; a pneumatic stirrer used in a fine and hard material working environment is adopted; an anti-blocking vibration discharging device is adopted; a carrier roller group with high sealing performance is adopted; and an in-bin feeding pipeline with a split structure is adopted.
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