Series Screen-Type Wastewater Cleaner

The  Series Screen-Type Wastewater Cleaner is a key product in the pretreatment and decontamination equipment suite for water supply and drainage systems. It replaces traditional screens with a screen mesh structure consisting of tines, a rake shaft, and chain plates. This screen mesh continuously rotates within its frame, intercepting and separating suspended solids in the wastewater. The captured debris is then scraped off by rotating scrapers into a debris hopper.

This device utilizes a uniquely designed plow-shaped rake chain, which is arranged on a horizontal axis in a specific assembly sequence and quantity. The spacing between the tines can be adjusted based on water flow, allowing for flexible installation at pumping stations or water treatment system inlets. When the drive unit propels the chain upward, debris is intercepted by the tines, while the liquid flows through the gaps between the tines. When the chain reaches its highest point, it reverses and moves downward, allowing the captured debris to fall automatically under the influence of gravity. When the tines return to the bottom of the equipment, the above process repeats, continuously removing debris from the water and achieving solid-liquid separation.

The main advantages of this equipment are that it continuously separates suspended solids from the water, ensuring high operating efficiency, smooth movement, minimal water level difference on both sides of the screen, and resistance to clogging. The screen mesh teeth can be made of nylon or stainless steel, while the tines and chain plates are made of stainless steel, significantly improving the overall corrosion resistance of the screen. For screens with smaller gaps, stainless steel tines are recommended to ensure corrosion resistance and longevity. The system consists of a closed tine chain, assembled in a staggered, parallel arrangement. Driven by an electric motor and a reducer, the tines move continuously downward from the top, using a set of sheaves and chains, to continuously clean the screen. When the tines reach the upper rear of the equipment, the sprockets and curved rails guide the parallel rows of tines, causing solids to fall into the slag trough due to their own gravity. If any debris isn't completely removed, this type of screen can easily carry it into the passageway behind the screen.

When the wire rope-pulled drum mechanical screen is operating, the wire rope drive releases the rope, allowing the bucket to descend along the guide rails from its highest position (the position at the end of the previous skimming cycle). The skimmer plate, under its own weight, descends with the bucket. After the skimmer plate returns to its original position, the scraper opens and, driven by the scraper opening and closing mechanism (electric actuator) and the intermediate wire rope, continues to descend until it reaches the lower limit of the passageway. Once the rake teeth are inserted into the gaps between the bars, the wire rope drive pulls the rope back, further closing the scraper. The scraper and bucket car then move upward along the guide rails, performing the slag removal operation until they reach the skimmer plate. During this relative motion, the scraper moves debris through the guide plate and into the slag trough, completing a single cycle.

                                                     

Grille width

 

Rotary rake teeth grille

Main Technical Parameters and Model Selection Table

参数     Parameters   型号   Model	有效栅宽W(mm)           Effective grille width W (mm)	设备宽W1(mm)      Equipment width W1 (mm)	沟渠宽W2(mm)           Ditch width W2 (mm)	栅网速度 (m/min)           Grid speed (m/min)	栅齿间隙 (mm)   Gap between grille teeth (mm)	沟渠深H1(mm)       Ditch depth H1 (mm)	卸渣高度H2(mm)       Discharge height H2 (mm)	格栅倾角α   Inclination angle of grille α	电机功率(KW)            Motor power (KW)
XP-300	300	430	500	2.2	3~20	自定   Self-determined	自定   Self-determined	60° ~80°	0.55
XP-500	500	630	700	2.2	3~20			60° ~80°	0.75
XP-800	800	930	1000	2.2	3~20			60° ~80°	1.1
XP-1000	1000	1130	1200	2.2	3~20			60° ~80°	1.1
XP-1100	1100	1230	1300	2.2	3~20			60° ~80°	1.1
XP-1200	1200	1330	1400	2.2	3~20			60° ~80°	1.5
XP-1500	1500	1630	1700	2.2	3~20			60° ~80°	1.5
XP-1800	1800	1930	2000	2.2	3~20			60° ~80°	2.2
XP-2200	2200	2490	2610	2.2	3~20			60° ~80°	3.0