Sludge thickening device and sludge treatment method thereof

Abstract

The invention relates to a sludge thickening device and a sludge treatment method thereof. The sludge thickening device comprises a sludge charging tank, a sewage discharging tank, a metal mesh cage and a motor, wherein a slag discharging chamber and a water discharging chamber are formed inside the sewage discharging tank; the slag discharging chamber is separated from the water discharging chamber through a partition plate; a slag discharging port is formed in one side of the slag discharging chamber; a clear liquid outlet is formed in the bottom of the sewage discharging tank; the clear liquid outlet is communicated with the inside of the water discharging chamber; the bottom of the sludge charging tank is communicated with the inside of the water discharging chamber through a conveying pipe; the metal mesh cage is arranged inside the water discharging chamber; the output end of the conveying pipe is sleeved with the metal mesh cage; the inside of the metal mesh cage is communicated with the inside of the slag discharging chamber, and the motor is used for controlling the metal mesh cage to rotate around the conveying pipe. The sludge thickening device can be used for thickening municipal sludge or used for thickening other municipal organic solids of which the water content is higher than 96%, so that the solid content of the sludge is stabilized to be 4% to 8%, the mechanical energy consumption is reduced, the mobility of the sludge is improved, blockage is avoided, and the requirements for concentration of sludge feeding for self-heating high-temperature aerobic digestion are met.

Description

technical field [0001] The invention relates to the technical field of environmental protection treatment equipment, in particular to a sludge concentration device and a sludge treatment method thereof. Background technique [0002] With the construction of a large number of sewage treatment plants in my country and the continuous improvement and improvement of sewage treatment technology, sludge treatment has become an important link that must be given priority in the design and operation of sewage plants. Sludge dewatering equipment is used in municipal domestic sewage, river water, industrial sewage, etc. industry has been widely used. [0003] The existing conventional dewatering centrifuge can treat the solid content of the sludge to about 20%, but the fluidity of the sludge becomes poor, making it impossible to pump the sludge into the self-heating high-temperature aerobic digester. In addition, the solid content of sludge is too high, which makes oxygenation and stirr...

AI Technical Summary

Problems solved by technology

[0003] The existing conventional dewatering centrifuge can treat the solid content of the sludge to about 20%, but the fluidity of the sludge becomes poor, making it impossible to pump the sludge into the self-heating high-temperature aerobic digester

In addition, the solid content of sludge is too high, which makes oxygenation and stirring very difficult

General sludge thickening equipment has the following problems: 1. It is easy to block; 2. It cannot be directly applied to the treatment process of sludge with low solid content (or other organic solids with high moisture content, such as pig manure, etc.); 3. Maintenance High cost; 4. High energy consumption, and secondary pollution caused by cleaning water; 5. Huge volume

Images