Toughness tube (pipe) type filtration machine

Abstract

A flexible pipe type filter is composed of at least one filter element consisting of at least one membrane module comprising at least one membrane unit, raw liquid delivering system, pressure generator for pressing the flexible membrane units to remove clean liquid from raw liquid, filtrate draining system filtered dregs discharging system and control system. Its advantages are high filtering speed and dry dregs.

Description

technical field [0001] The invention relates to a flexible tubular filter for solid-liquid separation of viscous and fine-grained substances, especially suitable for sludge disposal, river dredging mud treatment, drilling mud treatment, wet smelting wastewater treatment, coal washing wastewater treatment, poultry storage Projects such as aquaculture pollutant disposal and filling mining mud treatment all need to obtain filter residues with low liquid content on the premise of low energy consumption and high efficiency. Background technique [0002] In the existing sludge treatment methods for sewage treatment, the operating cost ratio of mechanical dehydration, landfill, drying, and incineration is about 10:50:380:450, and the project investment cost ratio is about 1:1.5:5: 8 (landfill consideration needs investments such as transport vehicles, roads and places), although the mechanical dehydration operation and project investment costs are low, but...

AI Technical Summary

Problems solved by technology

Filtration is completed by external driving force. Because of the overflow (sludge) on both sides of the sludge filter belt of the belt filter, the designer is limited in choosing filter pressure; the high-speed centrifugal dehydrator is limited due to the drum strength, bearing speed and The factor of the highest level of dynamic and static balance that can be achieved by the processing and manufacturing of the rotating mechanism restricts the designer when choosing the size of the centrifugal force; the filtration pressure of the vacuum suction filter is limited by the factors of atmospheric pressure and filter cracking and cracking; therefore, Existing technologies make it impossible for us to obtain sludge with high solid content, and these equipment can only achieve the best dehydration degree that is technically and economically reasonable and generally only achieve about 75%

Due to the high filtration pressure of the plate and frame filter press, the water content of the sludge filter residue can reach 50%. It is very time-consuming to open the filter plate of each filter chamber, unload the filter residue, and then clean and rinse the filter membrane of each chamber. When the filter plate is opened and closed repeatedly, the long sealing ring is easy to leak. In the same equipment volume and filtration area The output per unit time is less than 1 / 8 to 1 / 16 of other mechanical methods, and the filter cloth is easy to block, difficult to clean, and the filter cloth is severely worn

Images