Polymerization and esterification wastewater denitrification system

Abstract

The invention relates to a polymerization and esterification wastewater denitrification system, which comprises a packed stripping tower, a vapor inlet pipe, and water guide plates, a sprinkling platform is mounted in the packed stripping tower, connecting lugs are connected into the sprinkling platform, water flow outlets are fixedly arranged at the lower ends of the connecting lugs, the vapor inlet pipe is connected to the left side of the sprinkling platform, a movable pipe is arranged at the upper end of the packed stripping tower, a separator is connected to the right side of the movablepipe, a vapor guide plate is fixedly arranged in the separator, sponge adsorbing blocks are mounted under the vapor guide plate, and the water guide plates are fixed at the lower ends of the sponge adsorbing blocks. According to the novel polymerization and esterification wastewater denitrification process, because the sprinkling platform and the water flow outlets are formed into a disassemblablestructure by means of the connecting lugs, the water flow outlets can be rotated to be fitted on the sprinkling platform by means of the connecting lugs, so that esterification vapor can be sprinkledonto Pall rings via the water flow outlets on the bottom of the sprinkling platform, consequently, the water flow outlets can be conveniently replaced and dismounted, and thereby the difficulty of cleaning cannot be caused by the long-time use of the water flow outlets.

Description

technical field [0001] The invention relates to the technical field of polymerized esterification wastewater, in particular to a unit removal device for polymerized esterification wastewater. Background technique [0002] In the esterification reaction stage of existing polyester production, organic waste water with different organic content will be produced. The chemical oxygen demand (COD) is generally between 25000-35000mg / L. The main organic components contained in the waste water are ethylene glycol. , acetaldehyde, etc. At present, most polyester manufacturers use steam stripping devices to remove these organic molecules that are not easy to biochemically treat. [0003] The existing traditional stripping tower has complicated equipment, high cost and energy consumption, and cannot directly heat the esterified water to separate the mass and liquid quickly, so that it cannot vaporize the small gas molecules inside the esterified water better and faster , it is not conv...

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of unitization device of polymeric esterification wastewater, to solve the existing traditional stripper equipment proposed in the above-mentioned background technology, the cost and energy consumption are high, and the esterification water cannot be directly and quickly Heat the mass-liquid separation, so that the small gas molecules inside the esterified water cannot be quickly vaporized better and faster, and it is not convenient for them to become gaseous and discharged. At the same time, no compressed air is added to the water storage tank, so it is not convenient for the esterified water For aeration, there is no temperature detection device installed inside the stripper, which makes it inconvenient to adjust the required temperature inside the stripper

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