Sludge hydrolysis acidification system

A sludge hydrolysis acidification and sludge technology, applied in the direction of sludge treatment, biological sludge treatment, etc., to achieve the effect of improving dehydration performance, realizing sludge reduction and high operating efficiency

Active Publication Date: 2013-01-02
JIANGDU COUNTY ENVIRONMNT PROTECTION EQUIPS FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to propose a sludge hydrolysis and acidification system with energy saving and low operation cost in view of the disadvantages of the existing sludge preheating method

Method used

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  • Sludge hydrolysis acidification system
  • Sludge hydrolysis acidification system

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Embodiment Construction

[0025] Such as figure 1 As shown, the present invention is provided with mud feeding system, sludge hydrolysis acidification tank and circulation heat exchange system.

[0026] The mud feeding system includes a sludge storage tank 1 and a mud feeding screw pump 2 connected to the sludge storage tank 1 at one end.

[0027] Such as figure 2 , 3 As shown in and 4 , the sludge hydrolysis acidification tank 6 includes an inner cylinder 61 and a jacket 62 arranged outside the inner cylinder 61 . An agitator 63 is arranged in the inner cylinder 61 , and a motor 64 connected to the agitator 63 is arranged above the sludge hydrolysis and acidification tank 6 . A sludge feed port 65 is provided at the upper end of the inner cylinder 61 , a sludge discharge port 66 is provided at the lower end, and a hollow tangential turbulent plate 67 is provided on the inner wall of the inner cylinder 61 .

[0028] A spiral deflector 610 is arranged in the jacket 62 , and a hot water inlet 68 and...

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Abstract

The invention relates to a sludge hydrolysis acidification system and relates to the technical field of sludge hydrolysis acidification. According to the sludge hydrolysis acidification system, existing 12 DEG C secondary sedimentation tank effluent in the sewage treatment process is used for providing heat sources for a plate-type heat exchange device, cold water entering the plate-type heat exchange device from a cold water tank exchanges heat with the secondary sedimentation tank effluent to obtain warming cold water, and the warming cold water enters a heat pump device. Under the condition that electric energy is input, a heat pump system extracts heat from a water source used for the secondary sedimentation tank effluent to exchange heat, and the heat is transmitted to a water source entering a hot water tank by working and then exchanges heat with sludge in a muddy water heat exchanger so that the sludge is preliminarily warmed; and simultaneously, the heat source enters a jacket outside an internal cylinder so that the sludge entering the internal cylinder is warmed again until the temperature required for hydrolyzing is reached.

Description

technical field [0001] The invention relates to a hydrolysis acidification process of sludge, in particular to an application of heat pump technology in sludge hydrolysis acidification and a system device thereof. Background technique [0002] Sludge is a by-product produced in the process of sewage treatment in urban sewage treatment plants. There is a phenomenon of "heavy water and light mud" in the construction of urban sewage treatment plants in my country. Most of the sludge has not been treated safely and reasonably. [0003] The hydrolysis and acidification treatment of sludge is to treat sludge in a biochemical way, which utilizes the hydrolysis and acidification stage in anaerobic digestion of sludge. acid, which improves the dehydration and stability of the sludge, destroys and controls the pathogenic microorganisms in the sludge, reduces the volume of the sludge, and lays the foundation for the subsequent further use of useful components in the sludge and dehydrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/04
CPCY02W10/20
Inventor 虞波洪思平彭慧
Owner JIANGDU COUNTY ENVIRONMNT PROTECTION EQUIPS FACTORY
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