Fully mixed after a concentrated sludge with a concentration of flocculant in the static, dynamic mixer, small solid particles in the sludge poly cemented larger floc clumps, while separation of free water. The sludge is transported to the filter to bring concentrated gravity dehydration of free water under the action of gravity separation, the formation of sludge does not flow state, and then clamped between the upper and lower two mesh belt, after the wedge-shaped pre-pressure area, low pressure area and the high pressure area from small to large extrusion pressure, the effect of shear stress, and gradually squeezing the sludge, in order to achieve the greatest degree of mud, water separation and finally the formation of filter cake discharge.

1. Belt press dehydration
Order to improve the nature of the sludge dewatering, improved cake, increase the permeability of the material, the need for chemical treatment of sludge, this machine uses a unique water  granulation mixer device in order to achieve the chemical dosing flocculation. The role of this method is not only good flocculation can also save a lot of pharmaceutical, low operating costs, economic efficiency is very obvious.

2. The gravity dewatering section
Sludge sent to the network through the cloth bucket uniform belt, with the filter, the sludge with a forward run, free water, then sink under its own weight through the filter strip inflow gravity dehydration can also be said to be highly concentrated segment, the main role is to take off the sludge the free water, so that the flow of the sludge decreases, to prepare for further squeeze.

3. Belt filter press wedge pre-pressure dewatering
Gravity dehydration of sludge flow is almost completely lost, with the belt filter press filter with forward run with a spacing of the upper and lower filter is gradually reduced, the material began to be a slight pressure and run with the filter with pressure gradually increasing The role of the wedge-shaped area is to extend the gravity drying time, increase the extrusion stability of the floc, and prepare for entry into the pressure zone.

4. Squeeze rollers of high-pressure dewatering
Material from the wedge into the pressure zone, by squeezing the material in this region, with the running direction of the pressure increase with the reduction of the squeeze roller diameter along the filter material by the extrusion volume shrinkage, free water clearance within the material being squeezed out At this point, the basic formation of filter cake, continue to move forward to the high-pressure zone of the pressure on the tail after a high-pressure after the filter cake moisture content can be reduced to a minimum.


You can free to consult us online, we are look forward to your inquiry.