Continuous Gravity Belt Filter Press for Sewage Water Plant Sludge Dewatering
Applications
Sludge dewatering machine is suitable for the sewage treatment plant, waterworks and paper making,printing and dyeing,leather,chemical industry,slaughtering,pharmacy,electroplating,metallurgy,building materials,brewing,food and other industries after the wastewater treatment process of sludge dewatering.
Features
1.Compact structure, beautiful appearance.
2.The concentration and dehydration rate is high,and the solid content of the mud cake is high.
3.Automatic control,operating intensity is extremely low,reliable operation.
4.Cover an area of an area small, continuous work,litle noise.
5.Low energy consumption and long service life
6.Economically reliable and with a wide range of applications
Working Principle
1. The entire working process of the BDNDY belt sludge thickening and dewatering integrated machine can be divided into four basic stages.1. Sludge flocculation: Before dewaterimg, sludge must first go through a focculation process.
Flocculation refers to the pretreatment ofsuspended solids with a floculant. A fter the flocculant and sludge are stired and mixed, the solid particles in the suspension system adhereand produce a coagulation phenomenon, thus separating the solid phase from the liquid phase. At the same time, a small amount of coagulantaid is added to improve the flocculation effect.
2. Gravity dewatering: To more efiectively reduce the fluidity of the sludge before presing, more free water must be removed. The rumnimgsection of the filter belt has an upward inclimation Angle. The fiction coeficients ofthe sludge, free water and the filter bel are difierent. Thesludge moves upward with the filter belt to remove the free water. The sludge combing device disperses the sludge and evenly distributes iton the surface of the filter belt, further enhancing the dewatering effect.
3. Pressing dewatering: After gravity dewatering, as the filter belt moves, it enters the wedge-shaped pressure section between the upper andlower filter belts for pre-pressing dewatering, and then enters the "s-shaped pressing zone". Due to the shear force generated by the sludgebending in multiple sections along with the filter belt, the firee water inside is squeezed out.
4. Filter belt cleaning: lt is composed of a spray nozzle, a cleaning water collection box and a cleaning cover, etc. When the filter bel of thebelt filter press moves, it continuously passes through the cleaning device and is impacted by the pressure water sprayed by the spraver. Thematerials remaining on the fiter belt are separated from the filter belt under the action of the pressure water, regenerating the filter belt andpreparing for the next dewatering process.