Counter-flow cleaning device for multi-effect evaporation and concentration crystallizer
A multi-effect evaporation, concentration and crystallization technology, applied in the direction of cleaning hollow objects, cleaning methods and utensils, chemical instruments and methods, etc., can solve the problems of increased heat transfer resistance of equipment, affecting normal production, and reduced production intensity of evaporators, etc., to achieve The effect of enhancing the effect
Pending Publication Date: 2018-10-23
XIAN TPRI WATER & ENVIRONMENTAL PROTECTION
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Problems solved by technology
The fouling of the evaporator leads to an increase in the heat transfer resistance of the equipment, a decrease in the production intensity of the evaporator, a large unit steam consumption, and in severe cases, it will affect the normal production. Therefore, it is necessary to design a cleaning device for the multi-effect evaporation concentration crystallizer
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[0020] The present invention is described in further detail below in conjunction with accompanying drawing:
[0021] refer to figure 1 , the countercurrent multi-effect evaporation concentration crystallizer cleaning device of the present invention comprises a solution tank 1, a cleaning solution return flow main pipe 17 and several effect evaporators 7, wherein each effect evaporator 7 is equipped with a heater 10 and a forced circulation Pump 13; the cleaning liquid outlet of the evaporator 7 is connected with the cleaning liquid circulation inlet of the effect evaporator 7 through the heater 10 and the forced circulation pump 13, and the cleaning liquid outlet of the latter effect evaporator 7 is connected with the previous effect evaporator The concentrated brine outlet of 7 is connected, and the water outlet of the solution tank 1 is connected with the cleaning solution inlet of the last effect evaporator 7 through the cleaning solution filter 3, and the cleaning solution...
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The invention discloses a counter-flow cleaning device for a multi-effect evaporation and concentration crystallizer. The counter-flow cleaning device for the multi-effect evaporation and concentration crystallizer comprises a solution box, a cleaning liquid backflow main pipe and a plurality of effect evaporators. Each effect evaporator is provided with a heater and a forced circulation pump; anda cleaning liquid outlet of each effect evaporator communicates with a cleaning liquid circulation inlet of the effect evaporator through the corresponding heater and the corresponding forced circulation pump, a cleaning liquid series outlet of the latter effect evaporator communicates with a strong brine discharging outlet of the former effect evaporator, a water outlet of the solution box communicates with a cleaning liquid inlet of the last effect evaporator through a cleaning liquid filter, a cleaning liquid discharging outlet of the last effect evaporator and a cleaning liquid outlet ofthe first effect evaporator both communicate with the cleaning liquid backflow main pipe, and the cleaning liquid backflow main pipe communicates with a water inlet of the solution box. The counter-flow cleaning device for the multi-effect evaporation and concentration crystallizer can realize cleaning of the multi-effect evaporative and concentration crystallizer.
Description
technical field [0001] The invention belongs to the technical field of waste water treatment, and relates to a countercurrent multi-effect evaporation concentration crystallizer cleaning device. Background technique [0002] The low-temperature multi-effect evaporation concentration crystallization system is composed of multiple evaporators connected in series, which circulates the heat energy of the steam and reuses it many times to reduce heat energy consumption and cost. The heated brine is evaporated in multiple series-connected evaporators, using the secondary steam generated by the front-effect evaporation as the heat source of the after-effect evaporator, and the brine that has reached the crystallization degree after multi-effect evaporation enters the crystallizer to produce crystals, and through separation The device realizes solid-liquid separation and fresh water recycling. In recent years, the shortage of water resources has restricted my country's economic and...
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IPC IPC(8): B08B9/032
CPCB08B9/0325B08B2209/022
Inventor 许臻卢剑李亚娟降晓艳曹瑞雪
Owner XIAN TPRI WATER & ENVIRONMENTAL PROTECTION