Styrene rectification device capable of effectively reducing energy consumption of pre-separation tower

Abstract

The present invention discloses a styrene rectification device capable of effectively reducing energy consumption of pre-separation tower. The styrene rectification device capable of effectively reducing the energy consumption of the pre-separation tower comprises a pre-separation tower, and a first supporting base, a steam generator, an ethylbenzene dehydrogenation device, a second supporting base, a first water supply pump, a second water supply pump, a third supporting base, a third water supply pump and a fourth water supply pump are movably arranged on the right portion of the pre-separation tower. A fourth heat preservation sleeve is fixedly installed at the upper end of the first supporting base, a preheating body is fixedly installed on the inner wall of the fourth heat preservation sleeve, and a second steam inlet pipe is fixedly installed on an air outlet port of the steam generator. According to the tyrene rectification device capable of effectively reducing energy consumption of pre-separation tower, by arranging the preheating body and the preheating tank, the effect of recycling waste heat of high-temperature condensate of an ethylbenzene dehydrogenation device is achieved, the utilization rate of heat is high, and the production cost can be saved; and by arranging a second heat preservation sleeve and a connecting pipe, the effect of preserving heat of the pretreatment tower by utilizing steam and high-temperature condensate is realized, the heat preservation efficiency is good, and the use is convenient.

Description

technical field [0001] The invention relates to the technical field of styrene rectification devices, in particular to a styrene rectification device that can effectively reduce the energy consumption of a pre-separation tower. Background technique [0002] At present, the production technology of domestic chemical enterprises is basically mature, and the main work of each enterprise is to optimize the adjustment of the process and save energy and reduce consumption in the production of the device. Through a series of optimization and adjustment of the production process, the process of the device is slightly adjusted and changed, so To reduce the consumption of water, electricity, steam, etc., and reduce the energy consumption of the production of the device. The styrene rectification device is a device that consumes a relatively large amount of energy in the process of producing finished styrene, mainly due to the consumption of steam. Due to the low feed temperature of abo...

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of styrene rectification device that effectively reduces the energy consumption of the pre-separation tower, to solve the existing styrene distillation problem proposed in the above-mentioned background technology The rectification device cannot effectively reduce the energy consumption of the separation tower, cannot preheat the steam pipe of the pre-separation tower, and cannot use the high-temperature condensate produced by the ethylbenzene dehydrogenation device to preheat the steam pipe, and the utilization rate of heat is not high question

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