Cooling device and cooling method for maltol sublimation section

Abstract

A cooling device for a maltol sublimation section comprises a reaction kettle; the reaction kettle is provided with a jacket; the jacket is provided with a condensate water inlet and a condensate water outlet; the reaction kettle is provided with a gas phase opening and a discharging opening; the discharging opening is provided with a butterfly valve; a sublimation gas phase inlet is formed in the middle of the reaction kettle; four throttling plates are arranged on the upper portion in the reaction kettle, and inner cavities of the throttling plates are communicated with the jacket; first through holes are formed in the throttling plates, a plurality of second through holes are formed around the first through holes, a motor is arranged above the reaction kettle, a rotating shaft of the motor penetrates through all the first through holes and is provided with stirring paddles, and the rotating shaft is provided with scraping plates corresponding to the throttling plates. The cooling method comprises the following steps: introducing cooling water into thejacket andthe inner cavities of the throttling plates through the condensate water inlet and the condensate water outlet, starting the motor for stirring, vacuumizing by utilizing the gas phase opening, and introducing a sublimated gas phase into the reaction kettle through the gas phase inlet by the sublimation kettle; carrying out deposition on the sublimated gas phaseto obtain a solid material, and making the solid material scraped by thescraping plates to fall into the bottom of the reaction kettle; and finally, opening the butterfly valve for blanking. According to the method, water resources are saved, the speed is higher, and the efficiency is higher.

Description

technical field [0001] The invention relates to a cooling device and a cooling method of a maltol sublimation section. Background technique [0002] In the production process of maltol, it is purified in the sublimation section. The sublimated gaseous state of the material is absorbed in the cooled water to form an aqueous solution, and the absorbed aqueous solution is cooled to a solid again at a low temperature, dehydrated by a centrifuge, and the material is taken out for use in the next section. Cooling and absorbing materials with water requires a lot of water, and then the materials are cooled by a freezer and then centrifuged for dehydration, resulting in a large amount of sewage pollution. At the same time, a lot of manpower and material resources are wasted by centrifugal dehydration, and the pipes are often blocked when the materials are put into the centrifuge. , Need to disassemble and clean the tube, not only waste a lot of manpower and material resources, but a...

AI Technical Summary

Problems solved by technology

Cooling and absorbing materials with water requires a lot of water, and then the materials are cooled by a freezer and then centrifuged for dehydration, resulting in a large amount of sewage pollution. At the same time, a lot of manpower and material resources are wasted by centrifugal dehydration, and the pipes are often blocked when the materials are put into the centrifuge. , needs to disassemble and clean the tubes, which not only wastes a lot of manpower and material resources, but also causes material pollution and waste. At the same time, a lot of odor will be generated during centrifugal dehydration, causing environmental pollution.

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