The working principle of dewatering machine
 
Owing to the high mobility of liquid sludge, free water, no compressive capacity, so the first entered the gravity dehydration, remove the water of the free, reduce the liquidity of the sludge, and make the floccules and produce larger binding force between particles, and then enter the wedge preloading dehydration stage, the sludge after slight pressure dehydration, liquidity is almost completely lost, to prepare for the cyclotron dehydration and shear dehydration, the gravity sludge dewatering and wedge after dehydration, basic will free water and moisture removal within the floccules, enter the cyclotron dehydration zone, through swing roller diameter changes, gradually increase the mesh belt tension and dehydration gradually formed, when the mesh belt clip mud into the smaller diameter roller body, squeezing force produced by belt tensile force and dehydration cake sandwiched between the upper and lower two layers of filter belt, and is produced by the rotation direction of the shear force of dehydration process.
1, gravity dehydration
Sewage by the pump into the sludge stirring tank mixes with polymer flocculant, tiny suspended solids in the sludge with high polymer flocculant form a larger floc particles, then to gravity flow direction into the mud pressure filter cloth device, glue pinnate sludge distribution evenly on the filter cloth.
Gravity dehydration filter cloth in level walking, after the sludge the capillary water to free water, wear under gravity filter cloth made of mud in the separation, the function is to improve the sludge concentration of gravity dehydration area, make the floc sludge stabilization, facilitate subsequent press dehydration.
2, pressure dehydration
Up and down in the zone, filter cloth, gradually gradually squeezed sludge, sludge concentration continued to increase.
3, pressure dehydration
After entering pressure dehydration, caught in the filter cloth up and down between the squeezing roller interplanting of sludge in the ordering of the S shaped S move up and down, and gradually increase the pressure and shear force of capillary bound water glue pinnate sludge squeezed out, producing a dry sludge cake, by scraping mud unit discharge outside, at this point, to complete the dehydration process.