Wastewater treatment device for unsaturated polyester resin production and processing

Abstract

The invention discloses a wastewater treatment device for unsaturated polyester resin production and processing, and belongs to the field of wastewater treatment. The wastewater treatment device comprises a distillation barrel, a built-in mounting pipe is arranged on the bottom face of the interior of the distillation barrel, a liquid inlet pipe is arranged on the upper face of the distillation barrel, a steam outlet pipe is arranged on the distillation barrel and located on the side face of the liquid inlet pipe, an upper outlet valve is arranged on the upper portion of the side face of the distillation barrel, a lower outlet valve is arranged on the lower portion of the side face of the distillation barrel, and a middle filter plate is arranged in the distillation barrel. According to the wastewater treatment device for unsaturated polyester resin production and processing, through an arranged heat conduction structure, a heating source makes contact with wastewater all the time and is prevented from being separated; through a side face air guide pipe, naturally-rising hot air is guided back to the bottom of the wastewater, and the heating and distillation effect is better; through a mud scraping structure, dirt on the middle filter plate and the bottom surface of the distillation barrel can be scraped; and through a through plug structure, the middle filter plate is avoided from blockage.

Description

technical field [0001] The invention relates to the field of wastewater treatment devices, in particular to a wastewater treatment device for unsaturated polyester resin production and processing. Background technique [0002] Unsaturated polyester resins are generally linear polymer compounds with ester bonds and unsaturated double bonds formed by polycondensation of unsaturated dibasic acids and diols or saturated dibasic acids and unsaturated diols. Usually, The polyester polycondensation reaction is carried out at 190-220°C until the expected acid value is reached. After the polyester polycondensation reaction is completed, a certain amount of vinyl monomer is added while it is hot to form a viscous liquid. Such polymerization The solid solution is called unsaturated polyester resin. During the production process of unsaturated polyester resin, a large amount of waste water will be generated. For these waste water, distillation equipment is often used to treat the waste ...

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Problems solved by technology

[0003] Existing wastewater distillation treatment devices, such as the public document CN212076475U, in this patent document, the distillation treatment device uses fan blades to absorb hot air, thereby sucking the hot air from the upper part into the lower part of the wastewater, expanding the heated area, making the heating uniform, and the distillation effect Good, but the heating device is at the upper position, which causes the heating source to be at the upper position. When the water level is lower than the incubator, the heat transfer effect will be significantly reduced, and the distillation effect will be worse. Moreover, a large amount of hot air will still pass through the upper part through the fan blade suction method. The air port floats out, the use of hot air is incomplete, the heat utilization rate is poor, and there is no treatment structure for the mud scraping on the leaking plate in the middle, and the through holes on the leaking plate are also easily blocked, and there is no dredging structure

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