Pre-coating vacuum filter

Pre-coating vacuum filter-starch production from starch cassava-ngos on cassava yam production in nigeria-modern processing cassava into fufu

1. Brief introduction of pre-coating vacuum filter:

Pre-coated vacuum filters are widely used in starch dehydration in the pharmaceutical, food, chemical and other industries. All parts in contact with materials are made of high-quality stainless steel, and the rotating drum speed can be adjusted by frequency conversion. Roller cleaning uses intermittent flushing. The filter slit equipped with a reciprocating paddle agitator can prevent the discharge of the scraper from being controlled. The scraper is made of high-hardness alloy.

The equipment has absorbed advanced technology at home and abroad, is stable, has a compact structure, low energy consumption and a small area. The pre-coated vacuum filter has good working performance and high dehydration rate. It is an ideal choice for large and medium-sized starch manufacturers.

2. Structure and Principle

The pre-coated vacuum filter consists of the frame, the spindle, the motor, the reducer, the feed interface, the filter tank, the overflow port, the recovery interface, the agitator, the flushing water inlet, the pneumatic scraping, the vacuum tube connection, the manhole, and the drum , Agitator motor, filter composition cloth, etc. It is an important machine in the production of potato starch.

The porous surface of the horizontal rotating drum is covered with a certain amount of filter cloth, and a support net is arranged between the filter cloth and the porous shell. The vortex drum passes through the filter, and there is a certain level of dehydrated starch emulsion in the filter. Through the connection between the vacuum pump and the vacuum tube of the dehydrator, the internal pressure of the drum is reduced to a maximum of 200 Mb. The pressure difference between the inner cylinder and the outside (atmosphere) is affected

, The liquid passes through the filter cloth and reaches the inside of the drum. The pipeline pump is connected to the recovery system through the filtrate pump. The solid (starch) in the starch emulsion cannot pass through the filter cloth and remains on the surface of the drum. The pneumatic scraper will continuously scrape the solid (starch) from the surface of the rotating drum before the drum surface is immersed in the drum again. Starch emulsion and put it into the belt conveyor to enter the next process.

3. Installation, operation and maintenance

The pre-coated vacuum filter is installed in the correct position according to the process requirements. Auxiliary equipment such as vacuum pump, filtrate pump, water-gas separation tank, etc. are installed near the pre-coated vacuum filter to ensure the shortest distance between the various connecting pipes. operating.