Sludge thermal hydrolysis waste liquid defoaming system and method
A thermal hydrolysis and sludge technology, applied in water/sludge/sewage treatment, separation method, sludge treatment, etc., can solve the problems of liquid level count value jumping, overflow of pressure filtrate storage tank, large error, etc. Achieve the effect of improving defoaming efficiency, facilitating accurate measurement and reducing the amount of bubbles
Pending Publication Date: 2020-06-26
HUANENG POWER INT INC +2
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Problems solved by technology
[0004] The waste liquid (filtrate) produced by the low-temperature thermal hydrolysis process of sludge will generate a large number of air bubbles in the process of flowing into the filter liquid storage tank. The real-time measurement of the level meter is inaccurate, the error is large, the liquid level count value jumps, and the overflow of the filter liquid storage tank is easy to occur, which has a bad impact on the site environment and is detrimental to the safe and stable operation of the sludge low temperature thermal hydrolysis system. Therefore, it is necessary to develop a system and method, which can realize the defoaming of the filtrate
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[0022] The present invention is described in further detail below in conjunction with accompanying drawing:
[0023] refer to figure 1 , The sludge thermal hydrolysis waste liquid defoaming system of the present invention comprises a sludge drying center 1, a filtrate defoaming tank 2, a communication valve 15, a filtrate storage tank 3 and a vacuum pump 4; the sludge drying center The outlet of the filtrate of 1 is connected with the inlet of the filtrate defoaming tank 2, the outlet of the filtrate defoaming tank 2 is connected with the inlet of the filtrate storage tank 3 through the communication valve 15, and the outlet of the filtrate storage tank 3 is connected with the The process water inlet of the sludge drying center 1 is connected, the filtrate defoaming box 2 is equipped with an ultrasonic vibration generating system, the inlet of the vacuum pump 4 is connected with the outlet of the filtrate defoaming box 2, and the inlet of the vacuum pump 4 is connected to the ...
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The invention discloses a sludge thermal hydrolysis waste liquid defoaming system and method. The sludge thermal hydrolysis waste liquid defoaming system comprises a sludge drying center, a press filtrate defoaming box, a communicating valve, a press filtrate storage box and a vacuum pump; a press filtrate outlet of the sludge drying center is communicated with an inlet of the press filtrate defoaming box, an outlet of the press filtrate defoaming box is communicated with an inlet of the press filtrate storage box through a communication valve, an outlet of the press filtrate storage tank is communicated with a process water inlet of the sludge drying center, an ultrasonic vibration generation system is arranged on the press filtrate defoaming box, and an inlet of the vacuum pump is communicated with an outlet of the press filtrate defoaming tank. The system and method can be used for defoaming treatment on the thermal hydrolysis waste liquid in a fuel coal coupled sludge power generation process.
Description
technical field [0001] The invention belongs to the technical field of sludge treatment, and relates to a defoaming system and method for thermal hydrolysis waste liquid of sludge. Background technique [0002] The National Energy Administration and the Ministry of Environmental Protection jointly issued the "Notice on Carrying out the Pilot Project of Coal-fired Coupling Biomass Power Generation Technical Transformation". The document pointed out that the organization of the coal-fired coupled biomass power generation pilot project construction aims to give full play to the technological leadership of the world's largest clean and efficient coal power system, relying on the active coal power high-efficiency power generation system and centralized pollutant treatment facilities to build an urban and rural ecological and environmental protection platform , comprehensively eliminate agricultural and forestry waste residues, domestic garbage, sewage treatment plants, water slud...
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IPC IPC(8): B01D19/00C02F11/10C02F11/122
CPCB01D19/0078B01D19/0073C02F11/122C02F11/10
Inventor 王一坤刘辉柳宏刚张广才佘园元周平
Owner HUANENG POWER INT INC