Stainless steel filter head plate

Abstract

The invention discloses a stainless steel filter head plate with a novel structure, comprising a stainless steel filter plate and a filter head. The stainless steel filter head plate is characterized in that the stainless steel filter plate is a corrugated plate; the filter head is arranged on a wave crest; two sides of the stainless steel filter plate, which are perpendicular to a corrugated direction, are provided with closing plates, and the other two sides of the same are provided with connecting plates; the closing plates and the connecting plates are all provided with connecting screw holes; and the shape of the cross section of the corrugated plate is a continuous trapezoid preferably. The stainless steel corrugated plate has very high rigidity and can meet the requirement for moving upper and lower loads in a filter pool and balance the tiny difference of air pressure and water pressure during the back wash of the bottom of the filter plate inside the filter pool because back wash air and water which are positioned at the bottom of the filter plate are communicated on wave crest and wave trough positions due to the corrugated structure of a filter plate surface; and in addition, the stainless steel filter head plate also has the advantages of safety, hygiene, long service life, portability, simple structure, convenient installation, simultaneous installation and use, high residual value, and the like.

Description

technical field [0001] The invention belongs to the technical field of water treatment, in particular to a stainless steel filter head plate for water and gas distribution in a filter pool. Background technique [0002] Filter is a water treatment structure widely used in the field of water treatment technology. Its function is to remove particulate impurities in water through the filtration and adsorption of filter materials such as quartz sand, anthracite or activated carbon. The filter is generally the last link in the water treatment process and the final check process of water quality. The bottom of the filter material in the filter tank needs a certain structural support to separate the filter material from the filtered water. The supporting structure of the lower part of the filter material in the filter is the filter head plate. The filter head plate used in the past is composed of a reinforced concrete plate with certain strength and rigidity and a plastic filter ...

AI Technical Summary

Problems solved by technology

First of all, the production process is cumbersome. The production of concrete slabs requires a special steel formwork, and a 28-day curing period is required after pouring; the reinforced concrete filter slab is dense and heavy, and it is difficult to handle, load, unload, and transport. It is easy to bump during installation, damage the corners of the filter plate, and may cause injury to the construction personnel

In addition, the installation and construction period of the reinforced concrete filter plate is long. During the construction of the filter plate, the gaps between the filter plates need to be filled with sealing materials such as waterproof mortar and sealing cement. The maintenance of these materials also takes 15 days. If the construction maintenance does not meet the requirements, the filter plate Quality problems such as air leakage and water leakage are prone to occur during the use of seams, which will affect the service life

[0004] At present, there are still some filter plates made of glass fiber reinforced plastics and plastic materials used in China. Compared with concrete filter plates, this type of filter plate has the advantages of light weight and convenient construction and installation. However, the strength and rigidity of the filter plate itself is insufficient. , under long-term up and down two-way pressure, the gaps of the filter plate are prone to material fatigue and water and air leakage problems, and after a period of use, the filter plate will bend or even break due to its own insufficient rigidity, and the flatness will deteriorate, resulting in water distribution in the filter tank. Uneven air distribution affects the normal operation of the filter and the water quality and quantity

In addition, glass fiber reinforced plastic and plastic filter plates are used in the filter tanks of water supply treatment projects, and there are still potential health and safety hazards in the materials.

Although non-reinforced concrete filter head plates such as glass fiber reinforced plastics and plastics have appeared in engineering, due to their own insufficient mechanical properties and problems such as sealing with concrete, they have not been effectively resolved, and this type of filter plate has not been widely used in engineering.

[0005] As a water treatment engineering structure, the filter tank has a design life of more than ten years. As an important structure in the filter tank, the filter head plate water distribution system, due to the constraints of materials and construction techniques, whether it is a reinforced concrete filter plate or other The inner non-metallic filter plate, compared with the service life of the filter, has a service life of only about ten years at most. During the service life of the filter, the filter head plate water distribution system needs to be replaced many times, which seriously affects the water quality and quantity, and increases many times. A series of disadvantages such as repeated investment

Images