INTRODUCTION

The grille body is usually made of high-quality stainless steel, possessing good corrosion resistance and strength, enabling it to work stably in the sewage environment for a long time. The clearance between the grille bars has a variety of specifications, which can be selected according to different treatment requirements to intercept debris of different particle sizes. The rake chain is composed of numerous rakes. The shape and material of the rakes are carefully designed to be sturdy and wear-resistant, capable of effectively grasping the dirt intercepted on the grille. The driving device provides power for the entire equipment to ensure that the rake chain with the rakes can rotate around the grille body. The cleaning device is responsible for timely cleaning the dirt on the rakes so that they can continuously and efficiently perform the dirt removal work. The frame plays a role in stably supporting each component.

This equipment comes in a variety of specifications and can be flexibly selected according to factors such as sewage flow, debris types, and installation sites. It is widely used in municipal sewage treatment plants, industrial wastewater treatment stations, pumping stations, and other places. It is easy to install, simple to operate, and runs stably and reliably, making it a capable assistant to ensure the smooth progress of the subsequent sewage treatment process.

WORKING PRINCIPLE

The working principle of the rotary grille screen cleaner is based on the rotary movement of the rake chain and the interception effect of the grille. When sewage containing various debris flows into the equipment, it will first pass through the grille body. Due to the specific clearance between the grille bars, debris with particle sizes larger than the clearance of the grille bars, such as branches, plastic bags, and large pieces of garbage, will be intercepted on the inlet side of the grille.

At the same time, the driving device drives the rake chain to start rotating. As the rakes continuously move along with the chain, when passing through the grille position where debris is intercepted, the rakes will go deep into the grille clearance, scrape the intercepted debris up along the grille, lift it out of the water surface, and make it attach to the rakes. As the rake chain continues to rotate, the rakes carrying debris will move to the cleaning device. The cleaning device will clean the debris off the rakes by scraping, brushing, and other means, and the debris will fall into the preset collection device, completing the removal of debris. The sewage that has been preliminarily filtered to remove large-particle debris will continue to flow to the subsequent sewage treatment processes, reducing the burden and laying a good foundation for the subsequent treatment.

MAIN PERFORMANCE AND CHARACTERISTICS

l High-Efficiency Dirt Removal Capacity: Thanks to the reasonable design of the rakes and the stable rotary movement, it has excellent interception and cleaning abilities for debris of different shapes and sizes in sewage. Whether it is light garbage floating on the water surface or blocky debris deposited at the bottom, it can be effectively removed, ensuring that the impurity content in the sewage entering the subsequent treatment process is significantly reduced, and avoiding adverse effects such as clogging and damage to subsequent equipment caused by debris.

l Stable and Reliable Operation: The high-quality stainless steel material and the solid mechanical structure enable it to operate stably in the face of complex and changeable sewage working conditions, such as different water flow speeds, water level changes, and sewage containing corrosive substances. It is not prone to malfunctions, continuously provides a stable pretreatment effect for the sewage treatment system, reduces problems such as treatment interruptions or increased maintenance costs caused by equipment problems, and has a relatively long service life.

l Simple and Easy Operation: The operation process of the equipment is relatively simple. Workers only need to control the start and stop of the driving device and pay attention to the running status of the cleaning device and other basic operations. There is no need for complex professional knowledge and skills. Ordinary personnel can master the operation method proficiently after simple training, facilitating its quick deployment in various sewage treatment sites.

l Strong Adaptability: Different grille bar clearances, rake chain specifications, and overall equipment sizes can be flexibly selected according to factors such as different sewage sources, characteristics of the contained debris, and treatment scales. It can also be used in combination with other sewage treatment equipment. Whether it is dealing with municipal sewage, industrial wastewater, or water from pumping stations and other different types of sewage, it can find suitable application methods, has good versatility, and can meet diverse pretreatment requirements.

l High Degree of Automation: Some rotary grille screen cleaners are equipped with an automated control system that can automatically adjust the rotation speed of the rake chain, the cleaning frequency, and other parameters according to the water level, flow rate, and other parameters of the sewage, realizing intelligent operation and management, further improving the dirt removal efficiency, saving labor costs, and better adapting to the sewage treatment needs under different working conditions.

APPLICATION FIELDS AND INDUSTRIES

l Municipal Sewage Treatment Field: Municipal sewage comes from a wide range of sources and contains a large amount of domestic debris, such as leaves, paper pieces, and plastic bottles. As an important equipment in pretreatment, the rotary grille screen cleaner can effectively intercept and remove these debris, preventing them from entering subsequent treatment units such as grit chambers and biochemical reaction tanks, ensuring the normal operation of municipal sewage treatment plants, improving the sewage treatment efficiency, ensuring that the final effluent quality meets the standards, and protecting the surrounding water environment.

l Industrial Wastewater Treatment Field: Industrial wastewater generated during the production process often contains debris of various shapes and materials, such as fibers in textile wastewater and metal scraps in mechanical processing wastewater. This cleaner can specifically remove these debris, prevent them from accumulating in pipes and treatment equipment, reduce the burden on subsequent treatment processes, enable industrial wastewater to pass through sedimentation, filtration, biochemical, and other treatment processes more smoothly, achieve discharge standards, and reduce environmental pollution.

l Pumping Station Field: During the process of pumping and transporting sewage, rainwater, and other water in pumping stations, the water flow will carry a large amount of floating objects, sediment, and other debris. If not cleaned in time, it is easy to cause problems such as clogging and wear of pumping station equipment. The rotary grille screen cleaner installed at the inlet of the pumping station can intercept and remove debris, ensuring the normal pumping and transportation functions of the pumping station, extending the service life of the pumping station equipment, and maintaining the stable operation of the entire water supply and drainage system.

SUMMARY

Rotary grille screen cleaners, with their unique structure, reliable working principle, and many excellent performance characteristics, have shown an indispensable role in the pretreatment process of sewage treatment in many important fields such as municipal, industrial, and pumping stations. They are like the loyal guardians in sewage pretreatment, quietly contributing to the smooth progress of the subsequent sewage treatment process, the protection of the water environment, and the sustainable development of various industries. With the continuous progress of science and technology, it is believed that rotary grille screen cleaners will continue to make breakthroughs in aspects such as improving the dirt removal efficiency, increasing the degree of automation, and expanding applications, further meeting the increasingly diverse pretreatment requirements of sewage treatment in society and becoming one of the key supporting equipment for creating a high-quality water environment and promoting the development of the environmental protection cause.