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Equipment and process for condensing and collecting steam and waste gas at tail end of multi-grade flash evaporation device

A flash evaporation device and steam technology, which can be used in steam condensation, chemical instruments and methods, and dispersed particle separation, etc., can solve problems such as air pollution and harm the environment, and achieve the effect of protecting the environment and avoiding air pollution.

Inactive Publication Date: 2016-01-20
山东丰特环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The used cooling water enters the cooling tower for cooling. During the cooling process of the cooling tower, the H in the water 2 S, CS 2 Wait for the toxic and odorous gas to volatilize and discharge into the air, causing air pollution and endangering the environment

Method used

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  • Equipment and process for condensing and collecting steam and waste gas at tail end of multi-grade flash evaporation device

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Embodiment Construction

[0016] Embodiments of the present invention are further described below in conjunction with accompanying drawings:

[0017] Such as figure 1 As shown, the equipment for condensing and collecting steam and exhaust gas at the end of the multi-stage flash evaporator includes a multi-stage flash evaporator 2, and the end of the multi-stage flash evaporator 2 is connected to the first-level indirect condenser M1 and the second-level condenser M2 through pipelines, The first-stage indirect condenser M1 and the second-stage condenser M2 are connected through pipelines, the second-stage condenser M2 is connected to the steam jet pump 7 and the third-stage condenser M3 through the pipeline in turn, the steam jet pump 7 is connected to the steam source 5, and the third-stage condensing The device M3 is sequentially connected to the vacuum pump 10 and the waste gas treatment system 9 through the pipeline;

[0018] The first-stage indirect condenser M1, the second-stage condenser M2 and ...

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Abstract

The invention relates to equipment and a process for condensing and collecting steam and waste gas at the tail end of a multi-grade flash evaporation device and belongs to the technical field of production of viscose. The equipment comprises the multi-grade flash evaporation device, wherein the tail end of the multi-grade flash evaporation device is connected with a primary indirect condenser and a secondary condenser; the primary indirect condenser and the secondary condenser are connected through a pipeline; the secondary condenser is connected with a steam injection pump and a tertiary condenser through a pipeline in sequence; the steam injection pump is connected with a steam source; and the tertiary condenser is connected with a vacuum pump and a waste gas treatment system through a pipeline in sequence. The process can be used for completely collecting uncondensed waste gas generated by multi-grade flash evaporation so that all toxic waste gas generated by the multi-grade flash evaporation enters the waste gas treatment system, and furthermore, the air pollution is avoided and the environment is protected.

Description

technical field [0001] The invention relates to equipment and a process for condensing and collecting terminal steam and waste gas of a multi-stage flash evaporation device, belonging to the technical field of viscose fiber production. Background technique [0002] In the production process of viscose fiber, the acid bath solution mainly composed of sulfuric acid and sodium sulfate, the viscose mainly composed of cellulose and sodium hydroxide react to form fibers, and the neutralization reaction of acid and alkali in the process generates a large amount of Water and sodium sulfate reduce the concentration of sulfuric acid in the acid bath after the reaction to become a dilute acid bath, and then use a multi-stage flash device to evaporate and concentrate the acid bath to finally make the concentration of sulfuric acid meet the process requirements. [0003] At the end of the multi-stage evaporation device, the evaporated low-temperature steam and the H degassed due to negat...

Claims

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Application Information

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IPC IPC(8): B01D5/00B01D53/00
Inventor 刘伟常宗义
Owner 山东丰特环保科技有限公司
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