CN103785281B - High concentration chlorine emergency processing method and device - Google Patents
High concentration chlorine emergency processing method and device Download PDFInfo
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- CN103785281B CN103785281B CN201210426765.2A CN201210426765A CN103785281B CN 103785281 B CN103785281 B CN 103785281B CN 201210426765 A CN201210426765 A CN 201210426765A CN 103785281 B CN103785281 B CN 103785281B
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Abstract
The invention discloses a kind of high concentration chlorine emergency processing method and device.Its method is to be introduced directly in the distributor of cylinder body bottom from gas feed by high concentration chlorine, makes high concentration chlorine overflow from the aperture that distributor top gathers and reacts with the alkali liquor in cylinder；Discharged by gas outlet from cylinder top after the harmful components in the alkali liquor absorption high concentration chlorine in cylinder, enter back into other operations and continue subsequent treatment or import smoke stack emission；Cooling circulating water by being located in cylinder inner coil pipe assembly absorbs the course of reaction substantial amounts of heat of generation simultaneously.Its device is made up of interface, liquidometer lower interface, sample tap, alkali liquor outlet and distributor on cylinder, coil pack, top cover, manhole, water inlet, alkali liquor import, gas outlet, gas feed, outlet, liquidometer, process technique can be simplified, reduce equipment cost.
Description
Technical field
The present invention relates to one
High concentration chlorine emergency processing method and device,
Belong to harmful gas processing technology field.
Background technology
Chlorine in human being's production, life process purposes widely, particularly many fields of Chemical Manufacture are all important raw materials.But chlorine belongs to severe toxicity hazardous chemical, environment is had serious harm, can pollute water body.At chemical industry, pesticide, medicine and colored metallurgical industrial
A little production processes have chlorine output, is discharged the most incorrect process of a large amount of chlorine contained exhaust gas, personal safety accident can be produced and cause environmental pollution.
The chlorine contained exhaust gas discharged normal productive process at present is (containing Cl2, HCl etc., its content≤5%) it is commonly configured with exhaust treatment system, mainly it is in series by multi-stage water wash circulated sprinkling tower and multistage alkali cleaning circulated sprinkling tower, chlorine contained exhaust gas is washed by spray columns at different levels step by step, the oxious components such as Cl2, HCl in waste gas are by circulated sprinkling drop absorption, and remaining tail gas passes through chimney emptying up to standard.Product in water lotion mainly has HCl；Product in alkali wash water mainly has the NaOH etc. of NaCl, NaOCl and remnants.Needing to change washing liquid respectively after the product in water lotion and alkali wash water reaches finite concentration, waste hydrochloric acid (HCl) liquid discharged and abraum salt (NaCl, NaOCl, NaOH) mixed liquor send chlor-alkali plant process and recycle as its raw material resources.Owing to spray medium is hydrochloric acid solution, alkali and sodium hypochlorite mixed liquor, all having the strongest corrosivity, therefore exhaust treatment system device therefor and material are required to anti-corrosion.When some production system breaks down, the chlorine of higher concentration (such as: Cl2 concentration >=80%) can be produced, as processed yet by above-mentioned exhaust treatment system, will: owing to the reaction heat of Cl2 with NaOH is significantly increased, the temperature causing spray container involved by medium, pipeline, equipment etc. is substantially increased, until exceeding the allowable work temperature of relevant anticorrosion material, exhaust treatment system is caused to damage；For high concentration chlorine, the spray washing efficiency of existing exhaust treatment system does not reaches the exhaust emission standard of national regulations.In current industrial system, for by high concentration chlorine contained exhaust gas produced by production system fault, there is no emergency treatment device the most targetedly.Once fault occurs, and the selection that some She Lv enterprise domestic can only be helpless is without processing emptying, and this is also the one of the main reasons that recent year environmental protection, security incident take place frequently.
Summary of the invention
It is an object of the invention to, it is provided that a kind of
High concentration chlorine emergency processing method and device.For produced high concentration chlorine during the associated production system failures such as chemical industry, pesticide, medicine and colored metallurgical industrial, a kind of novel high density chlorine emergency treatment device is provided, timely alkali liquor absorption processes, thus avoid directly emptying and cause Heavy environmental pollution, and guarantee the job safety of producers.Process technique with simplification, reduce equipment cost.
To overcome the deficiencies in the prior art.
Technical scheme:
High concentration chlorine emergency processing method, the method is to be introduced directly in the distributor of cylinder body bottom from gas feed by high concentration chlorine, makes high concentration chlorine overflow from the aperture that distributor top gathers and reacts with the alkali liquor in cylinder；Discharged by gas outlet from cylinder top after the harmful components in the alkali liquor absorption high concentration chlorine in cylinder, enter back into other operations and continue subsequent treatment or import smoke stack emission；Cooling circulating water by being located in cylinder inner coil pipe assembly absorbs the course of reaction substantial amounts of heat of generation simultaneously.
In preceding method, described distributor is the sealing container being located at cylinder body bottom, the top sealing container is provided with densely covered aperture, is made by distributor the high concentration chlorine of entrance distributor overflow from densely covered aperture uniformly, makes high concentration chlorine react with the alkali liquor in cylinder to greatest extent.
In preceding method, described coil pack is connected in parallel by the spiral coil of two or more different-diameter and constitutes, and the spiral coil of two or more different-diameter uses and is connected in parallel along barrel diameter direction hierarchal arrangement, every layer of coil pipe, to improve cooling effect.
The device constituted according to preceding method, including cylinder, cylinder top is provided with top cover, and cylinder body bottom side is provided with alkali liquor outlet, and top cover is provided with gas feed, gas outlet and alkali liquor import；Bottom in cylinder is provided with distributor, and distributor is the sealing container that top is provided with Process, seals container intracavity and is connected with the gas feed being located on top cover through pipeline；Being provided with chiller in cylinder, chiller is made up of coil pack.
In aforementioned means, described coil pack includes the spiral coil of at least two different-diameter, and the spiral coil of different-diameter is connected in parallel with water inlet and outlet respectively along barrel diameter direction hierarchal arrangement, each spiral coil two ends.
In aforementioned means, described alkali liquor outlet side is provided with sample tap, is provided with valve at sample tap.
In aforementioned means, described cylinder side is provided with interface and liquidometer lower interface on liquidometer.
In aforementioned means, described top cover is provided with manhole.
Compared with prior art, the present invention can simplify process technique, reduces equipment cost.The present invention better simply technique and less equipment, economical, reasonably solve existing conventional techniques (spray column exhaust treatment system) problem of high concentration chlorine can not be processed, can learn from other's strong points to offset one's weaknesses with prior art, collaborative work.Relative to the spray column exhaust treatment system run continuously the whole year, emergency method processes mainly for high concentration chlorine produced by (generally 4～5 hours) during fault, and after failture evacuation, i.e. stopping processes and recovers the properly functioning of exhaust treatment system.Present invention employs the more conventional technology of the mode making high concentration chlorine be passed directly in alkali liquor (chlorine contained exhaust gas contacts with spray droplet) and absorption efficiency is greatly improved, and tail gas emptying up to standard after process can be made；Have employed inner coil pipe water-cooling pattern and reduce the operating temperature of medium, facility, it is ensured that the normal working temperature of anti-corrosion material, compensate for the deficiency of routine techniques.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Being labeled as in accompanying drawing: interface, 11-liquidometer lower interface, 12-sample tap, the outlet of 13-alkali liquor, 14-distributor on 1-cylinder, 2-coil pack, 3-top cover, 4-manhole, 5-water inlet, 6-alkali liquor import, 7-gas outlet, 8-gas feed, 9-outlet, 10-liquidometer.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings, but not as any limitation of the invention.
High concentration chlorine emergency processing method, as shown in Figure 1.The method is to be introduced directly in the distributor of cylinder body bottom from gas feed by high concentration chlorine, makes high concentration chlorine overflow from the aperture that distributor top gathers and reacts with the alkali liquor in cylinder；Discharged by gas outlet from cylinder top after the harmful components in the alkali liquor absorption high concentration chlorine in cylinder, enter back into other operations and continue subsequent treatment or import smoke stack emission；Cooling circulating water by being located in cylinder inner coil pipe assembly absorbs the course of reaction substantial amounts of heat of generation simultaneously.Described distributor is the sealing container being located at cylinder body bottom, the top sealing container is provided with densely covered aperture, the high concentration chlorine being made entrance distributor by distributor is overflowed from densely covered aperture uniformly, makes high concentration chlorine react with the alkali liquor in cylinder to greatest extent.Described coil pack is connected in parallel by the spiral coil of two or more different-diameter and constitutes, and the spiral coil of two or more different-diameter uses and is connected in parallel along barrel diameter direction hierarchal arrangement, every layer of coil pipe, to improve cooling effect.
The device constituted according to preceding method, as shown in Figure 1.Including cylinder 1, cylinder is the container containing alkali liquor, and cylinder 1 top is provided with top cover 3, and top cover can be connected with cylinder by bolt and sealing gasket.Cylinder 1 bottom side is provided with alkali liquor outlet 13, and top cover 3 is provided with gas feed 8, gas outlet 7 and alkali liquor import 6；Bottom in cylinder 1 is provided with distributor 14, and distributor 14 is the sealing container that top is provided with Process, seals container intracavity and is connected with the gas feed 8 being located on top cover 3 through pipeline；Being provided with chiller in cylinder 1, chiller is made up of coil pack 2.Described coil pack 2 includes the spiral coil of at least two different-diameter, and the spiral coil of different-diameter is along barrel diameter direction hierarchal arrangement, and each spiral coil two ends are connected in parallel with water inlet 5 and outlet 9 respectively.Described alkali liquor exports 13 sides and is provided with sample tap 12, is provided with valve at sample tap 12.Described cylinder side is provided with interface 10 and liquidometer lower interface 11 on liquidometer.Described top cover 3 is provided with manhole 4, in order to personnel carry out cylinder 1 and carry out upkeep operation.
The work process of the present invention and principle
In actual motion, it is internal that alkali liquor (NaOH) pours into cylinder 1 from alkali liquor import 6, observed the height of alkali liquor by the liquidometer being arranged on the liquidometer of cylinder side on interface 10 and liquidometer lower interface 11, after alkali liquor height reaches predetermined altitude, alkali liquor import is closed.High concentration chlorine contained exhaust gas is in the distributor 14 that gas feed 8 is directly entered bottom cylinder 1, and gather aperture at distributor 14 top, and chlorine overflows in aperture and reacts with the alkali liquor in cylinder.Because reaction to produce substantial amounts of heat, needing to cool down, cooling circulating water enters in coil pack 2 from water inlet 5, then discharges from outlet 9, to reach the purpose cooling down device inside.The a small amount of residual exhaust not carrying out in this device reacting is discharged from gas outlet 7, enters other operations and continues subsequent treatment or import smoke stack emission.From sample tap 12, liquid being carried out sampling analysis, when the reactions are completed, product should be that the mixed liquor of NaOH, NaCl and NaOCl is from outlet 13 discharge.
Claims (6)
1. a high concentration chlorine emergency processing method, it is characterised in that: the method is to be introduced directly in the distributor of cylinder body bottom from gas feed by high concentration chlorine, makes high concentration chlorine overflow from the aperture that distributor top gathers and reacts with the alkali liquor in cylinder；Discharged by gas outlet from cylinder top after the harmful components in the alkali liquor absorption high concentration chlorine in cylinder, enter back into other operations and continue subsequent treatment or import smoke stack emission；Cooling circulating water by being located in cylinder inner coil pipe assembly absorbs the course of reaction substantial amounts of heat of generation simultaneously；Coil pack is connected in parallel by the spiral coil of two or more different-diameter and constitutes, and the spiral coil of two or more different-diameter uses and is connected in parallel along barrel diameter direction hierarchal arrangement, every layer of coil pipe, to improve cooling effect.
Method the most according to claim 1, it is characterized in that: described distributor is the sealing container being located at cylinder body bottom, the top sealing container is provided with densely covered aperture, the high concentration chlorine being made entrance distributor by distributor is overflowed from densely covered aperture uniformly, makes high concentration chlorine react with the alkali liquor in cylinder to greatest extent.
3. the device that a method according to claim 1 or claim 2 is constituted, it is characterized in that: include cylinder (1), cylinder (1) top is provided with top cover (3), cylinder (1) bottom side is provided with alkali liquor outlet (13), and top cover (3) is provided with gas feed (8), gas outlet (7) and alkali liquor import (6)；Bottom in cylinder (1) is provided with distributor (14), and distributor (14) is the sealing container that top is provided with Process, seals container intracavity and is connected with the gas feed (8) being located on top cover (3) through pipeline；Cylinder is provided with chiller in (1), and chiller is made up of coil pack (2)；Coil pack (2) includes the spiral coil of at least two different-diameter, and the spiral coil of different-diameter is along barrel diameter direction hierarchal arrangement, and each spiral coil two ends are connected in parallel with water inlet (5) and outlet (9) respectively.
Device the most according to claim 3, it is characterised in that: described alkali liquor outlet (13) side is provided with sample tap (12), and sample tap (12) place is provided with valve.
Device the most according to claim 4, it is characterised in that: described cylinder (1) side is provided with interface on liquidometer (10) and liquidometer lower interface (11).
Device the most according to claim 5, it is characterised in that: described top cover (3) is provided with manhole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426765.2A CN103785281B (en) | 2012-10-31 | 2012-10-31 | High concentration chlorine emergency processing method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426765.2A CN103785281B (en) | 2012-10-31 | 2012-10-31 | High concentration chlorine emergency processing method and device |
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| CN103785281A CN103785281A (en) | 2014-05-14 |
| CN103785281B true CN103785281B (en) | 2016-08-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113426274B (en) * | 2021-06-02 | 2022-05-03 | 浙江天成工程设计有限公司 | Chlorine tail gas treatment device and treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1436582A (en) * | 2003-03-14 | 2003-08-20 | 王淑文 | Leaked chlorine absorbing apparatus and process |
| CN201257357Y (en) * | 2008-08-21 | 2009-06-17 | 杭州科利化工有限公司 | Residual chlorine recovering device in tail gas |
| CN202052469U (en) * | 2011-04-19 | 2011-11-30 | 张步芳 | Halogen removing tank |
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2012
- 2012-10-31 CN CN201210426765.2A patent/CN103785281B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1436582A (en) * | 2003-03-14 | 2003-08-20 | 王淑文 | Leaked chlorine absorbing apparatus and process |
| CN201257357Y (en) * | 2008-08-21 | 2009-06-17 | 杭州科利化工有限公司 | Residual chlorine recovering device in tail gas |
| CN202052469U (en) * | 2011-04-19 | 2011-11-30 | 张步芳 | Halogen removing tank |
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| CN103785281A (en) | 2014-05-14 |
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