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Stripping, evaporating, reducing, burning and quenching device and method for acrylic acid wastewater

An acrylic acid reduction technology, applied in combustion methods, chemical instruments and methods, incinerators, etc., can solve problems such as energy waste, large fuel consumption, and uneconomical treatment methods, and achieve environmental protection problems, easy operation, and systematic running smooth effect

Inactive Publication Date: 2016-09-21
BEIJING AEROSPACE PETROCHEM TECH & EQUIP ENG CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of treatment process consumes a lot of fuel and causes a great waste of energy. It is an extremely uneconomical treatment method.

Method used

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  • Stripping, evaporating, reducing, burning and quenching device and method for acrylic acid wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like figure 1 As shown, a stripping, evaporation, reduction, incineration and quenching device for acrylic acid wastewater according to the present invention includes a wastewater neutralization and concentration system, an incineration system, a flue gas quenching system, and a flue gas dust removal system.

[0029] The wastewater neutralization and concentration system includes a wastewater neutralization tank 2 that collects acrylate wastewater, the wastewater outlet of the wastewater neutralization tank 2 is connected to the inlet of the mixed wastewater feed pump 3, and the outlet of the mixed wastewater feed pump 3 is connected to 1# steam The entrance to the middle of Tita 5.

[0030] The upper gas outlet of 1# stripper 5 is connected to the inlet of the incinerator 28 of the incineration system, and the lower waste water outlet of 1# stripper 5 is connected to 6 inlets of 1# stripping delivery pump, and the 6 inlet of 1# stripping delivery pump 6 The outlet is ...

Embodiment 2

[0038] like figure 1 Shown, a kind of acrylic acid wastewater of the present invention is stripped, evaporated, reduced, incinerated and quenched, and it comprises the steps:

[0039] (a) The acrylate wastewater 1 discharged from the production unit is collected in the wastewater neutralization tank 2 for neutralization and decomposition; the decomposed wastewater is sent to 1# stripper 5 for stripping, and the light organic phase and steam are stripped Flow out from the top of the tower into the incinerator 28 for incineration, and the waste water after removing the light components is sent to 1# evaporator 7 and 2# evaporator 8 successively for evaporation and concentration, and the concentrated waste water enters the incinerator 28 for incineration;

[0040] (b) The steam coming out from the 2# evaporator 8 enters the condenser 9 and is cooled by circulating water, and the condensate formed is stored in the condensate tank 12; the condensate is transported to the 2# strippe...

Embodiment 3

[0044] like figure 1 Shown, a kind of acrylic acid wastewater of the present invention is stripped, evaporated, reduced, incinerated and quenched, and it comprises the steps:

[0045] (a) The acrylate waste water 1 discharged from the production unit is collected in the waste water and the tank 2, and the waste water is heated to 90°C by the steam coil to neutralize and decompose with the added caustic soda to generate sodium salt and alcohol, and the decomposed waste water After the mixed waste water feed pump 3 is sent to the packing section of the lower section of the 1# stripper 5 for stripping; the acrylate wastewater enters the middle part of the 1# stripper 7, and is stripped of the light component organic phase and steam, and flows out from the top of the tower Enter the incinerator 28 for incineration; another stream of acrylic acid waste water 4 enters the upper part of the 1# stripping tower 5, and after stripping the light component organic phase and steam, it flow...

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PUM

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Abstract

The invention provides a stripping, evaporation, reduction, incineration and quenching device and method for acrylic acid wastewater. The device includes a wastewater neutralization and concentration system, an incineration system, a flue gas quenching system, and a flue gas dust removal system. In this method, the waste water containing acrylic acid is sent to the stripping tower, and the organic light components are stripped off, and then sent to the steamer for concentration. The concentrated waste water is sent to the incinerator for harmless treatment, and the generated flue gas is washed by the Venturi dust collector and then discharged into the atmosphere. The invention realizes the stripping, concentration and removal of the final organic components of the waste water to ensure that the discharge of the three wastes can meet the requirements of the national environmental protection standards, and effectively solves the waste of energy caused by the consumption of a large amount of fuel by the direct incineration method, which is an extremely economical treatment.

Description

technical field [0001] The invention belongs to industrial waste water reduction and harmless treatment technology, in particular to a stripping, evaporation, reduction, incineration and quenching treatment method and device for acrylic acid and acrylic acid ester organic waste water produced in the production process of an acrylic acid plant. Background technique [0002] The production process of the acrylic acid industry produces a large amount of organic wastewater, and the water content in the wastewater is very high. At present, the direct incineration method is mainly used in China to incinerate the wastewater at high temperature to decompose the organic matter in the wastewater. This kind of treatment process needs to consume a large amount of fuel, which causes a great waste of energy, and is an extremely uneconomical treatment method. Contents of the invention [0003] The object of the present invention is to provide a stripping, evaporation, reduction, incinera...

Claims

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Application Information

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IPC IPC(8): F23G7/04F23J15/04F23J15/06C02F9/10
CPCF23G7/04C02F1/04C02F1/20C02F1/66C02F9/00F23G2209/101F23J15/04F23J15/06F23J2217/50
Inventor 张杰郭亮李玉峰董志明祁艳军杨志刚胡佳
Owner BEIJING AEROSPACE PETROCHEM TECH & EQUIP ENG CORP LTD