Main uses

Kdnlg type non-metallic inner inlet orifice plate fine (membrane) grating is a very reliable, stable and excellent performance equipment for wastewater removal and filtration, whether it is used in municipal sewage treatment and water treatment, in various industrial sewage treatment, or in other solid-liquid separation fields.

The product can continuously and automatically remove the solid suspended substances in the filtered water body, not only can remove the wood wedge, branch rod, plastic products and other floating grid slag in the water body, but also effectively remove the suspended matters such as hair, fiber, floc soft substances in the filtered water body, which is an ideal and efficient pretreatment equipment for water supply and drainage system. It has been widely used in the fields of sewage treatment, reclaimed water treatment, industrial wastewater treatment, water intake of water supply plant, industrial water intake of power plant.

In recent years, with the improvement of the standard upgrading and the requirement of deep treatment of sewage treatment and the reduction of the problem of scum fiber in the later sludge treatment, the fine grid of non-metallic inner inlet orifice plate has been widely used. Especially MBR process and BAF process require the pretreatment to remove hair and fiber materials efficiently. The non-metallic inner inlet plate grid with the filtering precision of 1mm has become a new type of non-metallic inner inlet grid The main stream of the trash removal grid machinery plays a reliable role in the stable operation of the membrane reactor and biofilter.

Construction principle

The main structure of kdnlg type non-metallic inner inlet orifice plate fine (membrane) grating is filter orifice plate, chain wheel, theme frame, flushing system and slag collection parts, grating shell, drive motor, system seal, etc.

Filtration principle: the sewage to be filtered enters the interior of the grid from the middle of the inlet frame of the orifice plate grid, and the sewage flows through the orifice plate from both sides of the grid. The suspended substances such as filter slag, hair, fiber and other suspended substances are intercepted on the inner wall of the orifice plate. When the whole filter orifice is running, the material intercepted on the inner wall is lifted up to the top. The pressure flushing water pipe is set on the outside of the top orifice plate, and the water pipe is pressurized through pressure The pressure water will wash the orifice plate automatically, wash the residue material from the intercepted filter into the collecting tank below the inner side of the orifice plate, and finally, the conveying tank will flow to the slag press for pressing and dewatering treatment. The whole filtration process and press dehydration are carried out in continuous and automatic state.

Main advantages

technical parameter

Comparison chart

The mesh plate of non-metallic inner orifice plate fine (membrane) grid produced by our company is made of high-tech materials, with a thickness of 9mm. Different from the mesh plate made of steel or other metals, the mesh plate made of this material makes it difficult for hair floccules or fiber floccules to pass through, and it is not easy to form winding or blocking, so it can effectively remove the adsorption of hair floccules or floccules in sewage. The following picture shows a very typical situation of hair flocculent adsorption on the grid of other manufacturers. The inner inlet orifice plate fine (membrane) grille produced by our company does not need brush cleaning device, which is the root cause of problems often occurring on the machine.