The technical principle of the pressure electric osmotic drying machine
The basic principle of electroosmosis dehydration is: under the action of the DC electric field, various water molecules in the sludge will move to the cathode, and the solid is left in the upper layer to realize the separation of solid and liquid. In this process, the combined water and interstitial water in the sludge will become free water, and the sludge will break down and reduce the specific resistance. Theoretically speaking, electroosmosis is suitable for dewatering various kinds of sludge.
Because the electric osmosis has a conditioning effect on the sludge, the pressure dehydration has the precondition. It has been proved by the experiment that the effect of reducing energy consumption by pressure combined with electric osmosis has the effect of increasing efficiency. The device is pressurized in the middle of electroosmosis, and there is an elastic sealing frame with up and down floating around the pressure zone to prevent the sludge from extruding after being pressed. The positive pressure pressure process can be divided into three sections, such as low pressure, medium pressure and high pressure. The elastic sealing frame also plays the role of instantaneous high pressure at the same time, thus realizing the flexible pressurization of the sludge.
Vacuum suction suction through vacuum system can slow down the fouling of the cathode and filter, keep the drainage channel unblocked, speed up the moving speed of water molecules to the cathode, and improve the dehydration efficiency and the capacity of the equipment.
A summary of the application of equipment
The depth dehydration of all kinds of sludge with water content of about 80% can be reduced without the medicament. It can replace the drying machine to burn the sludge after drying, or the sludge drying system in the sludge carbonization process, so that the carbonization process is more optimized and energy saving and the manufacturing cost is reduced.
The sludge dehydration power needs only electricity, and the consumption of cleaning water is small.
It can continuously dehydrate sludge with water content 98-95% to 60-45%.
It has unique advantages for deep dewatering and reduction of hazardous waste such as chemical industry.
In the field of herbal tea residue, Chinese medicine residue and slurry residue, the moisture content of core of straw fiber can be removed to a maximum extent, and the fuel coal burning can save energy consumption.
