Overview and working principle of chain oil scraper and mud scraper

I summary

1. The chain oil scraper is suitable for skimming oil slick, scum and scraping mud and sand in rectangular tanks such as sedimentation tank, grit chamber and oil separation tank in oil refinery, water plant or sewage treatment plant

2. The equipment shall be used in conjunction with auxiliary settings such as oil collecting pipe and sludge discharge valve, so as to separate the oil slick on the water surface and the mud and sand at the bottom of the tank and complete the initial purification treatment

3. Before entering the sedimentation tank, the sewage must be subject to grid deletion and primary filtration to prevent large floating debris from entering

4. Characteristics of chain oil scraper and mud scraper

Driven by two parallel chains, the scraper moves continuously in a straight line in the pool The operation speed is slow and the disturbance to sewage is small, which is conducive to the deposition of sediment and the improvement of mud scraping capacity The circular operation of two parallel closed chains makes the running direction of the upper and lower chains change direction naturally, and there is no need to control the round-trip change, which simplifies the control program and saves the cost The driving device is installed on the platform on the top of the pool, which facilitates the repair and maintenance of equipment and electrical appliances

II working principle

The chain type oil scraper and mud scraper are equipped with two parallel closed traction chains, which are equipped with a plurality of scrapers. Under the driving and traction of the driving device, the chain and scrapers form a quadrilateral track along the guide wheels and guide rails set up above and below the sedimentation tank The scraper moves up and down slowly, which can scrape and collect the oil residue floating on the liquid level from the water inlet end to the oil collecting pipe at the water inlet end, and scrape and collect the sediment settled at the bottom of the tank from the water inlet end to the sludge collecting tank at the water outlet end and discharge it through the sludge discharge valve, so as to complete the purpose of mechanical purification of sewage for the first time