Open type calcium brine preheating process system

Abstract

The invention provides an open type calcium brine preheating process system, which comprises a primary preheating device, a secondary preheating device, and a settling device. The primary preheating device and the second preheating device both comprises a heat exchanger (a tube type heat exchanger) and a storage chamber. The bottoms of the heat exchangers are connected to the lower section of an upper guide pipe through flanges. One end of the lower section of the upper guide pipe is connected to a cross section of a lower guide pipe. One end of the cross section of the lower guide pipe is connected to a bottom material propeller through a flange, which is suspended from the ground and is taken as a free end for thermal expansion and contraction. The other end of the cross section of the lower guide pipe is fixedly connected to the lower guide pipe. One side of the bottom of the lower guide pipe is provided with a feed pipe opening and a feedback pipe opening. The top of the lower guide pipe is fixedly connected to the storage chamber. The top of the storage chamber is fixedly connected to a cross section of the upper guide pipe. The design of the open type calcium brine preheating process system is reasonable, continuous operation is realized, and the effective production time is effectively prolonged.

Description

technical field [0001] The invention belongs to the application field of heat transfer technology and crystallization technology, and in particular relates to an open calcium type brine preheating system process. Background technique [0002] Salt industry, petrochemical industry, metallurgical industry, coal chemical industry, wastewater treatment industry and other related industries that require evaporation and concentration of calcium sulfate-containing solution (or calcium sulfate-containing brine solution) and preheating before evaporation crystallization, calcium sulfate-containing solution (or calcium sulfate-containing brine solution) Calcium sulfate brine solution) in preheating production, use preheating equipment such as plate preheater, traditional tube preheater, plate preheater, etc. When these equipment are preheated, calcium sulfate crystals will rise with temperature However, the precipitation, the bonder wall or the bonded heat exchange surface will reduce...

AI Technical Summary

Problems solved by technology

[0002] Salt industry, petrochemical industry, metallurgical industry, coal chemical industry, wastewater treatment industry and other related industries that require evaporation and concentration of calcium sulfate-containing solution (or calcium sulfate-containing brine solution) and preheating before evaporation crystallization, calcium sulfate-containing solution (or calcium sulfate-containing brine solution) Calcium sulfate brine solution) in preheating production, use preheating equipment such as plate preheater, traditional tube preheater, plate preheater, etc. When these equipment are preheated, calcium sulfate crystals will rise with temperature However, the precipitation, the bonder wall or the bonded heat exchange surface will reduce the heat transfer coefficient or block the channel, and cannot work continuously, seriously affecting the effective production time; or multiple sets of equipment are used alternately, not only the investment is increased, but also the cleaning is frequent (generally 6 It will be cleaned every hour), the consumption of chemicals is high, the amount of equipment maintenance is also large, and a large amount of waste water is generated. For this reason, the present invention proposes an open calcium type brine preheating system process

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