At present, the fine processing of minerals often emphasizes higher purity and finer particle size, such as calcium carbonate, kaolin, titanium dioxide, bentonite, etc., and even reaches the micron or nanometer level, so the formation of slurry solid-liquid separation is more difficult, often can not be filtered, not dry, filter cake dense, high moisture content, the need for a spade frame and other phenomena, seriously affecting production efficiency. Works Chemical's self-developed sludge conditioner for high-moisture sludge can effectively reduce the moisture content of the sludge and make the sludge more dehydrated.
Finally, the plate and frame press is reached and the mud is pressed into blocks. Sludge conditioner is a chemical agent that can change the surface structure of sludge, reduce the solid surface load of sludge, reduce the specific surface area of sludge and destroy the structure of bacteria. The main components are inorganic compounds, sludge surface structure modifier, degreaser, wall breaking agent, sludge surface treatment agent, sludge stripping agent and so on.
The sludge conditioned by the sludge conditioner is injected into the filter chamber of the filter press at a pressure of about 1.0MP, which is conducive to the free water in the sludge. After the accumulated sludge in the filter chamber reaches the design capacity of the filter press, it enters the high-pressure press section. The dryness of the dehydrated sludge is closely related to the effect of chemical conditioning and modification, as well as the filling degree of the filter chamber, the pressure boost rate and the pressure holding time.
When the chemical conditioning (sludge conditioner) achieves better results, the use of high pressure feeding and high pressure pressing can shorten the time of the entire press section and improve production efficiency. Automatic discharge and backblowing of filter material (filter cloth) are completed at the same time, and the sludge conditioner can not only reduce the labor intensity of the controller, but also improve the efficiency of the completion of the action, and maintain the effect of the filter cloth to intercept sludge and permeate water.