Improving method for stirring practicability of rear reaction tank of first brine system

A reaction tank, a practical technology, applied in chemical instruments and methods, chemical/physical/physical chemical fixed reactors, mixers, etc., can solve the problem of excessive calcium ion in brine, frequent maintenance, and insufficient reaction of sodium carbonate and calcium chloride Complete and other problems, to extend the response time, to ensure the quality of the effect

Inactive Publication Date: 2018-03-20
ANHUI HUAXING CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The agitator reducer in the rear reaction tank of R-401A in the brine section often fails, resulting in incomplete reaction of sodium carbonate and calcium chloride, resulting in excessive calcium ions in the brine
At the same time, frequent maintenance of reducer gears and bearings and other components has caused a lot of waste of manpower, financial resources and material resources.

Method used

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  • Improving method for stirring practicability of rear reaction tank of first brine system
  • Improving method for stirring practicability of rear reaction tank of first brine system

Examples

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Effect test

Embodiment 1

[0026] The technical problem to be solved by the present invention adopts the following technical solutions to realize:

[0027] Such as figure 1 and 2 as shown, figure 1 The stirring paddle in the original mechanical stirring device of the rear reaction tank is changed to figure 2 Compressed gas aeration, three DN25 pipes; post-reaction tank compressed gas aeration device includes: 1--compressed gas aeration pipe; 2--feeding pipe; 3--exhaust port; 4--feeding port;

[0028] The 4-feed inlet is connected with the 2-feed pipeline, and the lower inlet in the feed inlet is the crude brine inlet; the upper feed inlet is the refined preparation sodium carbonate inlet;

[0029] The 2-feed pipeline is connected with the rear reaction tank, and the feed pipeline enters the tank body from the upper surface of the rear reaction tank;

[0030] The 1--compressed air aeration pipe has a main pipe that is input from the compressed air end near the reaction tank end, and then divided int...

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Abstract

The invention discloses an improving method for stirring practicability of a rear reaction tank of a first brine system, and relates to the technical field of chlor-alkali process improvement. According to the improving method, three DN25 pipelines are installed in the rear reaction tank to penetrate into the bottom, compressed air (0.5MPa) is introduced, an aeration reaction is carried out so that sodium carbonate and calcium chloride can be fully reacted, reaction time is prolonged, calcium carbonate can be better settled down, and therefore quality of brine is guaranteed; investment of manpower, financial resources and material resources is saved; energy conservation and consumption reduction are achieved; and daily maintenance work is greatly reduced, and the maintenance cycle is greatly prolonged.

Description

Technical field: [0001] The invention relates to a brine post-reaction tank stirring process method in the chlor-alkali process: the coarse brine from the preprocessor enters the post-reaction tank R-401A / B, and then adds the refined sodium carbonate to remove Ca in the brine 2+ Meet the requirements of entering the electrolyzer. In particular, it relates to a method for improving the practicability of stirring a reaction tank after a brine. Background technique: [0002] The quality of brine is one of the key factors in the electrolysis process in the chlor-alkali process. It is not only related to the economic operation of the electrolytic cell, but also to the operating life of the electrolytic cell. The agitator reducer in the rear reaction tank of R-401A in the brine section often fails, resulting in incomplete reaction of sodium carbonate and calcium chloride, resulting in excessive calcium ions in the brine. At the same time, frequent maintenance of parts such as re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B15/08C25B1/34B01J19/24B01F13/02B01F33/40
CPCB01J19/0053B01J19/24C25B1/34C25B15/08B01F33/405B01F33/4094
Inventor 李霞金奎王玉贵汪志稳李平赵龙凯
Owner ANHUI HUAXING CHEM IND CO LTD
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