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Sludge technology scheme, filter press equipment

Belt filter press working principle is to make the flocculation of the suspended material in the flocculant and gravity under the effect of concentrated in the concentrated section to take off most of the free water, the material gradually get concentrated, and then sent through the filter cake delivery mechanism After the pressure filter is dehydrated by a primary gravity, the material is flipped to between two closed filter belts, pre-pressurized and dewatered from large to small debris, and then passed through a series of W-shaped press rolls , So that the filter cake from small to large extrusion, shear force, so as to achieve the removal of most of the material in the free water and part of the purpose of capillary moisture. In order to ensure the dewatering rate of the filter press and the cleanliness of the workplace, we have taken the following measures:
1) Upper and lower filter belts The lower section of the horizontal section is provided with an open support belt frame which helps to break the water in the pores of the filter belt.
2) plowing plow: in the upper section of the upper filter set 7 sets of mud plow, before and after the staggered installation. The sludge can be continuously moved from one side to the other to increase the chance of contact with the filter belt.
3) Turn the sludge upside down: At the end of the filter, the sludge is gently lowered to another clean and running filter.
4) the rational use of filter belt, so as not to affect the dehydration effect. Gravity dewatering zone is the key to the dehydration capacity of belt filter press, the greater the area of ​​gravity dehydration area, the higher the dehydration efficiency. The gravity dewatering zone is provided with a sufficient size of the filtrate collection tray to allow the filtrate to be discharged from the machine.
5) The machine is fully enclosed box structure, the filter belt with a sludge baffle to prevent the flow from both sides. Machine appearance beautiful, no liquid spilled.
After the gravity dewatering of the sludge with the operation of the filter belt was brought to the wedge-shaped dehydration zone, wedge-shaped area is a triangular space, two filter belt in the area gradually closer, the sludge gradually squeezed between the two filters, Due to the role of pressure in the sludge to remove the water, the filter with the junction is Ф600mm large hole with the hole to further stabilize the sludge sludge and dehydration. The inside of the roll is drained from the drain holes at both ends of the roller. In this section, the solid content of sludge is further improved, from semi-solid to solid.
Sludge through the wedge-shaped area, into the pressure dehydration zone, the sludge was caught between the two filters around the roll for the W-shaped up and down, in the filter belt tension and press roll under the pressure of the tape tension and Under the action of shear force to further remove the floc and sludge particles between the water, the shear force from the two filter through the radius of each roller, under the action of the shear force of the sludge will be floc extrusion To make the cake full of dehydration. In the high pressure dehydration zone set up three pairs of dehydration roller up and down filter belt and three pairs of roller contact angle are greater than 180 degrees, when the cake reaches the cutting area terminal, after a few times after the cut enough to discharge all the mud cake in the free Water, sludge solidification rate of 25%.
We have taken the following measures to ensure the dewatering rate of the filter press and the cleanliness of the workplace
           Upper and lower filter belts The lower section of the horizontal section is provided with an open support belt frame which helps to break the water in the pores of the filter belt.
             Plumbing plow: set up 3 sets of mud plow in the horizontal section of the upper filter, before and after the staggered installation. The sludge can be continuously moved from one side to the other to increase the chance of contact with the filter.
             So that the sludge flips: the end of the filter on the smooth landing of the sludge to another clean and run the opposite direction of the filter belt.
             Reasonable selection of filter belt, so as not to affect the dehydration effect. Gravity dewatering area is the key to dehydration of dehydration and dehydration machine. The higher the area of ​​gravity dehydration zone is, the higher the dehydration efficiency is. The gravity dewatering zone is provided with a sufficient size of the filtrate collection tray to allow the filtrate to be discharged from the machine.
              The machine is semi-closed box structure, the filter belt with a sludge baffle to prevent the flow from both sides. Machine appearance beautiful, no liquid spilled.

The sludge is treated with a hundred questions
Characteristics of Sludge Treatment Equipment for Belt (Vacuum) Filter Press