Sludge drying solution

sludge refers to the sediment produced by treating wastewater with physical, chemical, biological, and other methods. According to its source, it can be divided into electroplating sludge, printing and dyeing sludge, tannery sludge, paper making sludge, pharmaceutical sludge, waterworks sludge, living sludge and petrochemical sludge. Because of its poor fluidity and high viscosity, easy to agglomerate, moisture evaporates, the drying time is difficult, demanding process of drying (coal, gypsum and other similar wet sticky materials are also used in this process of drying system for drying).

with the growing awareness of environmental protection, sludge drying technology is also in rapid development, but also in energy saving, safety, reliability and other aspects of sustainability in continuous innovation and improvement, the sludge drying system our company is the dewatered sludge moisture content from 80 + 10% to 20 + 10% drying, as follows the system advantage:

1. the sludge weight after drying can be reduced to 1/4 before drying, which greatly reduces the environmental and economic pressure of the enterprise;

2. The temperature of the inlet of the drying machine is 600-800 degrees. At the same time, the sludge can be sterilized and treated with deodorization. It can provide reliable guarantee for the reuse of the product after drying.

3. dried products can be used as feed, fertilizer, fuel, building materials, extraction of raw materials of heavy metals, etc., turning waste into treasure.

Sludge dehydration after scattered after the screw conveyor sent to the drying machine feeding head, then the unpowered spiral head (the patent technology) into the dryer, go through the following work area into the drying machine:

is the feeding area, sludge into the area and high negative pressure hot air after being contacted a lot of moisture evaporate rapidly, sludge (before the slime, the best sludge) in the lead angle of the copy board copy move, xingbucheng bonded under the guidance of a work area;

two is a clear area, wet sludge in this area is copy board took form material screen, easy to form a bond of the drum phenomenon of wall material falls in this area, because the design of equipment cleaning device (lift type X copy board, two copy board, hit the chain, hitting knock plate), cleaning device you can quickly clean out the bonding cylinder wall of the sludge, in this process, the cleaning device is broken for pellet agglomerate material, thereby increasing the heat exchange area, avoid increased convective heat exchange time tunnel phenomenon, produce, improve drying rate;

three is inclined lifting plate area, this area is a low temperature drying slime area, this area has a low moisture loose state, this has not having a bonded area, after heat exchange products reach the required water requirements, moving into the final discharge zone;

four is the discharge area, the dryer main drum in this area does not have a copy board, material rolling in this area sliding to the discharge port.

After drying, the sludge gradually becomes loose, which is discharged from the discharge end of the sludge, and then sent to the designated position by the material delivery device. The fine dust extracted from the tail gas is recovered by the dust collector after being collected by the dust collector.

hot air from the feed end into the drying machine drying machine within the host, and the material in the convective heat transfer and temperature gradually decreased, with water vapor in the suction fan, emptying after treatment.