Solids Dewatering Screw Rotary Screen Filter Process In Wastewater Treatment

Solids Dewatering Screw Drum Screen Process In Wastewater Treatment

The process starts in the screen that holds back solids only. The internal part of the screen is

continuously cleaned by brushes fixed on the outside diameter of the flighting. As the water

runs through the screen the shaftless spiral conveys the solids up towards the compaction

module where the material is further de-watered. Depending to the material properties,

screenings can be reduced by more than 50% of their original volume.

working principle

Screw screen to the horizontal equipment installed in the drains, the water from flowing into

the drum drum ends, the water flows through the grid gate slit, solid waste is filtered in the

grid baskets, cleaning arm with a finger in a circular motion when cleaning Grilling gap,

rake teeth extending into the grid, the solid was removed when the cleaning arm at the

highest point, by the action of water washing and slag plate, remove the garbage down from

the rake teeth, and fall into the garbage collection means a screw conveyor bucket, during

transport through the variable pitch action is dehydrated at the uppermost end of the

compression zone is squeezed, and squeezed the water is returned to the canal, and finally

into the garbage container or a successor device, and then processed.

Benefits

Throughput rates up to 1000 m³/h (589 cfm)

Screen mesh size ranging from 0.25 mm (0.01") to 10 mm (0.4")

Screen width ranging from 200 mm (8") to 700 mm (27½")

Stainless steel casing

Shaftless spiral screw in carbon steel or stainless steel

Intermittent operation

Variety of screen mesh sizes

Versatility: can be installed in a concrete channel on site or supplied with a self-supporting

container (supplied on request)

Volume reduction up to 50%

Absence of inside bearings

No mechanical components in contact with the product handled

Slow r.p.m.

Shaftless spiral, therefore no jamming or blocking even with fibrous products

Possibility of discharge into plastic bags

Long-life screw brushes

Low investment costs

Technical parameters

Yixing Holly Technology Co.,Ltd.is located in YiXing,Jiangsu Province,China.It is adjacent to

Shanghai which is the economy,finance and trade center of china,our company enjoys very

convenient transportation. Established in 2007 ,holly technology is a domestic forerunner in

producing environmental equipments and parts used for sewage treatment.In line with the principle

of "Customer first"​,our company has developed into a comprehensive enterprise integrating

production,trading,design and installation service of sewage treatment equipments.After years of

exploring and practice,we have built up complete and scientific quality system as well as perfect

after-sale service system.

At present,over 80% of our products export to foreign markets,including Southeast

Asia,Europe,North Ameria,Latin Ameria,Afria and so on.For years,we have gained most of our

customers'trust and welcome from home and abroad.

Holly group insist on "Market-oriented"​,customers first and credit frist"​.Based on an open and

studious mentality,we are longing for customed'visit and guidance ,together we grow.