Hemeng Hemeng

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NJL type internal intake grid

Classification:

Mechanical grille equipment

Keywords: stacking screw dewatering machine, pre-concentration stacking screw dewatering machine, integrated stacking screw dewatering system

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Detailed introduction

Model representation

Main features

The frame adopts steel plate bending forming, high strength, beautiful appearance.

Smooth operation, screen lifting is not easy to overload.

The separation precision is high, the net board water inlet area is large, and the garbage interception rate is high.

Vertical machine installation, high manufacturing precision; easy installation, effective space saving; no need to change the original civil structure, suitable for the transformation of the old canal equipment.

Underwater bearing-free, maintenance-free.

The use of pressure washing device composed of the unloading system, garbage removal more clean, eliminate fiber and hair entanglement and other problems.

Filter plate friction is small, wear-resistant, not easy to block, easy to clean.

It can realize fully closed operation, and ensure that the flushing water and odor will not leak out and cause secondary pollution.

Automatic control can be realized by timing and liquid level difference.

Working principle

NJL type internal flow grid is mainly composed of main frame, transmission device, mesh plate, transmission chain, flushing system, material receiving and control system. Sewage enters from the central hole in the front of the inner flow mesh grid, and is discharged from the inside through the perforated grid plates on both sides of the mesh grid from the inside to the outside, intercepting the grid slag inside and adhering to the mesh plate. During operation, with the movement of the transmission device, the transmission chain drives the mesh plate to move from bottom to top, where the grid slag is washed by the washing system and falls into the internal slag collection tank, it is then transported directly or through an external slag chute to a high drainage press for squeezing and dewatering; the screen plate is washed clean and then enters the next working cycle.

Application occasions

NJL type internal flow mesh grille is a new type of fine grille cleaning equipment, the use of continuous interception and removal of solid debris in the fluid, can achieve better cleaning effect, especially the traditional fine grille is difficult to intercept the hair fiber dirt, can greatly reduce the load of the subsequent treatment process. It is mainly used in power engineering and municipal sewage treatment process, and is an ideal equipment with good application effect on the market at present.

Technical parameters

Equipment Model NJL0.8| NJL1.0 NJL1.2 NJL1.4 NJL1.6  NJL1.8 NJL2.0  NJL2.2
Length of screen plate L(m) 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2
Body length (m) L 0.2
Channel width B(m) ≥ 1.0
Channel depth H(m) 1.0~5.0
Screen aperture S(mm) 1~8
separation efficiency 81%~97%
Flow velocity over the net (m/s) ≤0.6
Allowable water level difference (m) 0.3
Motor power (KW) 0.55~1.5
Flushing water pressure (Mpa) ≥ 0.5

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