Scraper Self - Cleaning Filter - Intelligent Debris Scraping & Long - term Filtration Pioneer

Product Introduction

1. Structural Composition

• Filtration Unit：Equipped with stainless - steel wedge - wire screens or high - precision filter elements, it can intercept impurities of different particle sizes. The screen gap precision can reach 5 - 500 microns, ensuring filtration efficiency.

• Scraper Assembly：The scraper made of wear - resistant alloy materials closely fits the surface of the screen. Driven by the driving device, it can rotate 360° to scrape off impurities.

• Sewage Discharge System：Comprising sewage discharge valves and pipelines, it quickly removes the impurities scraped off by the scraper from the filter.

• Control System：Fitted with an intelligent PLC control system, it monitors parameters such as the pressure difference between the inlet and outlet of the filter and the operation time in real - time, and automatically controls the cleaning process.

2. Working Principle：When the fluid enters the filter, it is filtered through the screen, and impurities are intercepted on the screen surface. When the accumulation of impurities on the screen surface causes the pressure difference between the inlet and outlet to reach the set value, or the operation time reaches the preset duration, the control system activates the driving device. The device drives the scraper to rotate, scraping off the impurities on the screen surface, which are then discharged through the sewage discharge system. This enables online self - cleaning of the filter without shutdown.

3. Core Advantages：Compared with traditional filters, the scraper self - cleaning filter enables continuous automatic cleaning, reducing manual maintenance. Its online cleaning feature does not interrupt fluid supply, ensuring production continuity. The wedge - wire screen structure offers strong anti - clogging ability, making it suitable for complex working conditions with high impurity content.

Working Process

1. Filtration Stage

• The fluid to be filtered flows into the filter from the inlet and evenly passes through the screen. Suspended solids, particulate impurities, etc., are intercepted on the screen surface.

• The filtered clean fluid flows out from the outlet and enters subsequent processing or use processes.

2. Cleaning Trigger

• The control system monitors the pressure difference between the inlet and outlet of the filter and the operation time in real - time.

• When the pressure difference exceeds the set threshold (such as 0.05 - 0.1MPa), or the operation time reaches the preset duration (such as 8 - 24 hours), the self - cleaning program is triggered.

3. Self - Cleaning Process

• The driving device starts, driving the scraper to move in a circular motion along the screen surface and scrape off the impurities attached to the screen.

• Meanwhile, the sewage discharge valve opens, and the impurities are discharged from the filter together with part of the fluid through the sewage discharge pipeline.

• The cleaning process lasts for several seconds to minutes (depending on the set parameters and impurity conditions) to ensure the screen is clean.

4. Restoration of Filtration：After the self - cleaning is completed, the sewage discharge valve closes, the driving device stops working, and the filter re - enters the filtration stage, continuing to ensure fluid purification.

Product Features

Technical Parameters

Application Fields

1. Petrochemical Industry：Filters mechanical impurities in crude oil, chemical raw materials, and finished products, protects pipelines, pumps, heat exchangers, and other equipment, and ensures stable production processes.

2. Food and Beverage Industry：Filters production water, raw material juices, dairy products, etc., removes suspended solids and particulate impurities, and ensures product quality and food safety.

3. Pharmaceutical Industry：Used for filtering liquid medicines and purified water, prevents impurity contamination, and meets GMP production standards.

4. Industrial Circulating Water：Removes sediment, algae, rust, and other impurities in circulating water, prevents pipeline blockage and equipment corrosion, and improves the utilization rate of circulating water.

5. Paper - Making Industry：Filters pulp and paper - making water, intercepts fiber bundles, fillers, and other impurities, and improves paper quality and production efficiency.

6. Sewage Treatment：In the sewage pretreatment stage, it intercepts large - particle suspended solids, reducing the load of subsequent treatment processes. In the reclaimed water reuse process, it further purifies the water quality.

FAQ

1. How often does the scraper of the scraper self - cleaning filter need to be replaced?：The replacement cycle of the scraper is affected by fluid properties, impurity content, and operating frequency. Under normal working conditions (low impurity content and weak fluid corrosiveness), the scraper can be used for 3 - 5 years. If dealing with fluids containing high - concentration particles or strong corrosiveness, it may need to be inspected and replaced within 1 - 2 years. When significant wear of the scraper is found, resulting in a decline in cleaning effectiveness, it should be replaced promptly.

2. How to avoid damage to the screen during the cleaning process of the scraper self - cleaning filter?：Firstly, during installation, ensure that the gap between the scraper and the screen is uniform and meets the equipment requirements (usually 0.5 - 1mm). Secondly, regularly check the operation status of the scraper and the driving device to prevent impacts on the screen caused by scraper jams or abnormal driving. Thirdly, set cleaning parameters reasonably according to fluid characteristics to avoid overly frequent cleaning or excessive scraper operating speed.

Conclusion

The scraper self - cleaning filter, with its advantages of intelligent self - cleaning, high - efficiency filtration, and adaptability to complex working conditions, has become a key device for many industries to ensure fluid cleanliness and stable system operation. Whether in the food and pharmaceutical industries with strict product quality requirements or the complex petrochemical field, it can provide reliable solutions. Choosing our scraper self - cleaning filter means choosing an efficient, intelligent, and durable fluid purification solution to escort production and operation.

If you are interested in this product or have any questions, please feel free to contact us at any time.

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