Multiple-effect coupled atomization evaporator

Abstract

The invention belongs to a low-cost high-efficiency multiple-effect coupled atomization evaporator which consists of a tower drum, an atomizing device, a waste liquor pool, a crystalline particle collection device, a crystalline particle collection bin, a thermo-fluid inlet pipeline and an evaporation fluid outlet pipeline, wherein the lower bottom of the tower drum is provided with an air inlet regulation device; the atomizing device is positioned inside the tower drum; the waste liquor pool is positioned below the tower drum; the crystalline particle collection device is used for collecting the atomized and evaporated crystalline particles; the crystalline particle collection bin is adjacent to the waste liquid pool; and the thermo-fluid inlet pipeline and the evaporation fluid outlet pipeline are used for accelerated evaporation. According to the device, the functions of atomization, evaporation, crystallization and collection of crystalline particles are integrated into a whole, the multiple evaporation effects of evaporating and atomizing the fluid together by using wind power and thermo-fluid are combined, the time needed by natural wind evaporation is effectively shortened, and the wind and thermal evaporation effects can be freely regulated, so that the atomization evaporator can safely and efficiently operate all the year round, and huge floor space of the waste liquor pool or a natural evaporation pond is greatly reduced. According to the equipment, the natural wind power and various waste heat fluid can be used for auxiliary evaporation, any intermediate dosing treatment process is not needed, the investment is saved, and the operating cost is low.

Description

technical field [0001] The invention relates to an evaporation and crystallization device, in particular to a multi-effect coupled atomization evaporator for atomizing and evaporating concentrated brine and accelerating crystallization. Background technique [0002] In recent years, more and more attention has been paid to the waste water and circulating cooling sewage generated in industrial production processes such as electric power, metallurgy, oil refining, and coal chemical industry. With the continuous increase of the cost of water resources and the strengthening of the state's control over corporate sewage discharge, sewage reuse technology has been widely popularized. In the process of sewage treatment, the treatment of concentrated brine is the most difficult, such as desulfurization wastewater discharged from desulfurization towers in the power industry, coal chemical wastewater, etc. [0003] At present, there are mainly two solutions for the treatment of this p...

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Problems solved by technology

Both of the above two methods have advantages and disadvantages: the first method is the most thorough treatment of high-salt wastewater, and the relative technology is also the most mature. The disadvantage is that the treatment cost is too high. The water volume is treated with high-concentration brine, and the evaporation and crystallization reaction equipment has high requirements on materials, resulting in a large one-time investment; the second method, making full use of natural conditions, has very low operating costs and simple equipment management. The disadvantage is that it occupies an area The area is too large, the cost of land is extremely high, and it is greatly affected by climatic conditions, such as light, wind, temperature, seasons and other factors, resulting in low long-term efficiency, and natural evaporation is affected by seasons, and continuous evaporation tasks cannot be achieved in winter, resulting in Storage of concentrated brine requires larger evaporation ponds

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