Multifunctional composite filtering diaphragm plate

Abstract

The invention relates to a multifunctional composite filtering diaphragm plate which mainly comprises an intermediate runner, a support layer, diaphragms which are positioned at the two sides of the support layer and bonding modes among each layers, wherein the intermediate runner adopts a special plastic runner gridding with the thickness of 1-1.5mm; and the support layer is a hydrophilic non-woven fabric support layer, the diaphragms cover the support layer, the bonding modes adopt thermal bonding, and the diaphragms, the runner gridding and the support layer are bonded to define a dialyzate runner. Compared with the prior art, the processing cost and the material cost are greatly lowered, the diaphragm component filling density can be improved, the diaphragm plate can swing along with aeration gas scouring, diaphragm pollution is not easy to generate, and the diaphragm plate can support back flushing.

Description

technical field [0001] The invention relates to technical fields such as plate and frame filtration, tap water filtration, and MBR water treatment devices, and specifically refers to a multifunctional composite filtration membrane plate, the English name being: Multifunctional composite filtering membrane plate. Background technique [0002] 1. The heart of the plate-and-frame filter assembly is the plastic support plate, which is the interlayer between two flat membranes. The membrane body is sealed on the flat plate by locking devices, adhesives or direct bonding. The inside of the plate is porous, which can provide a flow channel for the permeate, and the permeate is collected in the tube on one side of the plate, and the ribs or grooves on the surface of the plate provide a flow channel for the material liquid, but the system equipment is bulky and expensive High, and there is a poor internal sealing structure, easy to leak bad defects. [0003] 2. In the existing domes...

AI Technical Summary

Problems solved by technology

The inside of the plate is porous, which can provide a flow channel for the permeate, and the permeate is collected in the tube on one side of the plate, and the ribs or grooves on the surface of the plate provide a flow channel for the material liquid, but the system equipment is bulky and expensive High, and there are bad defects of poor internal sealing structure and easy material leakage

[0003] 2. In the existing domestic sewage and industrial sewage treatment process, the pollutants are mainly degraded based on the activated sludge biochemical method. This traditional treatment process has the disadvantages of poor effluent quality, large area of ​​treatment facilities, and pollution. Defects such as high mud yield, low efficiency and difficulty in achieving process stability control

However, due to the large thickness and heavy weight of the middle support plate, the processing cost and material cost are high, and the explosive gas cannot make the diaphragm shake, or the shake is very small, so pollutants are easy to adhere to the membrane surface. Thinner boards are available in the market instead of thicker ones, but they still have the disadvantages of heavy weight, low packing density, and inability to backwash

Images