CN105214463B - A kind of processing method of aliphatic hydroxyl sulphonate water-reducing agent production exhaust gas - Google Patents
A kind of processing method of aliphatic hydroxyl sulphonate water-reducing agent production exhaust gas Download PDFInfo
- Publication number
- CN105214463B CN105214463B CN201510623118.4A CN201510623118A CN105214463B CN 105214463 B CN105214463 B CN 105214463B CN 201510623118 A CN201510623118 A CN 201510623118A CN 105214463 B CN105214463 B CN 105214463B
- Authority
- CN
- China
- Prior art keywords
- waste gas
- spray tower
- gas
- exhaust gas
- exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The present invention provides the processing methods that a kind of aliphatic hydroxyl sulphonate water-reducing agent produces exhaust gas, emission-control equipment used in the method for the invention includes spray tower for waste gas, waste gas absorption slot and exhaust tube, it is connected by pipeline between three, it is equipped with one section of packing layer in the spray tower for waste gas, solution is housed in spray tower for waste gas and waste gas absorption slot；The processing method includes：Production exhaust gas is introduced into spray tower for waste gas；After spray tower for waste gas, production exhaust gas is fed in waste gas absorption slot；It is sent to 15 meters of high altitude discharges through exhaust tube after fluid-tight absorbs.Processing method of the present invention will be higher by much compared to the effect that traditional water or buck absorb；By spraying and the vent gas treatment mode of fluid-tight both forms is combined, the absorption efficiency for exhaust gas is further promoted；Sodium metabisulfite solution for absorbing acetone and formaldehyde can be used as the synthesis material of water-reducing agent, will not cause secondary pollution.
Description
Technical field
The present invention relates to the processing methods that a kind of aliphatic hydroxyl sulphonate water-reducing agent produces exhaust gas.
Background technology
Aliphatic hydroxyl sulphonate water-reducing agent is with acetone, formaldehyde, sulphite etc. for main raw material(s), in alkaline matter
Catalysis is lower to be made by sulfonation and condensation.It has many advantages, such as high water-reducing rate, cheap, simple production process, without bleed.But
It is due in its raw material, acetone and formaldehyde are all that the substance of highly volatile is put along with stirring and reaction in process of production
Heat will have a large amount of harmful exhaust effusion reaction system.
For this problem, in aliphatic hydroxyl sulphonate water-reducing agent production line, exhaust gas can be set up above reaction kettle
The production exhaust gas that reaction kettle generates uniformly is sent to emission-control equipment and handled by pipe.It is directed to aliphatic hydroxyl sulfonic acid at present
The emission-control equipment that the production exhaust gas of salt water-reducing agent uses at present is mainly water spray system and activated carbon adsorption device.Wherein
Water spray system is respectively 75% and 85% for the uniprocessing efficiency of acetone and formaldehyde, and single-stage is difficult to meet environmental requirement,
Therefore the mode of generally use plural serial stage, but the treatment effeciency of the limit usually not more than 96%.And activated carbon adsorption fills
The treatment effeciency set is higher, can generally achieve 99% or more, but the activated carbon in device needs to be replaced frequently, and replaces
The processing of the activated carbon to get off is also very cumbersome.
The production exhaust-gas treatment of aliphatic hydroxyl sulphonate water-reducing agent is always a difficult problem of environmental protection, along with infrastructure
The dosage of the extensive development of construction, concrete rises year by year, and aliphatic hydroxyl sulphonate water-reducing agent is as main water-reducing agent
One of agent kind, demand also increasingly increase.Therefore there is an urgent need for a kind of simply and effectively production waste gas processing methods of exploitation, to solve
Environmental burden in industrialization process.
Invention content
For in the prior art in order to improve aliphatic hydroxyl sulphonate water-reducing agent produce exhaust gas treatment effeciency, cause to give up
The cumbersome problem of gas disposal method, the present invention provide a kind of processing method of aliphatic hydroxyl sulphonate water-reducing agent production exhaust gas.
A kind of processing method of aliphatic hydroxyl sulphonate water-reducing agent production exhaust gas of the present invention：It gives up used in this method
Flash Gas Compression Skid System includes spray tower for waste gas, waste gas absorption slot and exhaust tube, is connected by pipeline between three, the exhaust gas spray
It is equipped with one section of packing layer in tower, solution is housed in spray tower for waste gas and waste gas absorption slot；It the treating method comprises：Produce exhaust gas
It is introduced into spray tower for waste gas；After spray tower for waste gas, production exhaust gas is fed in waste gas absorption slot；After fluid-tight absorbs
It is sent to 15 meters of high altitude discharges through exhaust tube；
Solution in the spray tower for waste gas and waste gas absorption slot is the aqueous solution of sodium pyrosulfite；
Packing layer material in the spray tower for waste gas is hollow polypropylene microballoon；
The height liquid seal is difference in height of the gas outlet in waste gas absorption slot to liquid level.
The mass fraction of the aqueous solution of sodium pyrosulfite of the present invention is 10~30%, when concentration is higher than 30%,
Solution has the risk that pyrosulfurous acid sodium crystal is precipitated, and then injury device when temperature is relatively low；When concentration is less than 10%, assimilation effect
It is poor, and need to frequently replace solution.
For packing layer thickness control of the present invention between 0.5~1.0 meter, filler layer thickness is bigger, waste gas absorption effect
It is better, but the transport resistance of gas can increase, and be unfavorable for the operation of equipment；Filler layer thickness is smaller, the assimilation effect of exhaust gas
It is deteriorated.
Spray tower for waste gas middle section solution spraying amount of the present invention is 20~100kg/ (m2* min), spray flux is bigger,
Waste gas absorption effect is better, but corresponding energy consumption can increase；Spray flux is too small, then the assimilation effect of exhaust gas is poor.
Height liquid seal in waste gas absorption slot of the present invention is between 0.5~1 meter, and height liquid seal is higher than 1 meter, then fluid-tight
Pressure is excessive, is unfavorable for the effusion of exhaust gas, and height liquid seal is less than 0.5 meter, then assimilation effect is poor.
The pH value range of solution is no more than 8.0 in spray tower for waste gas and waste gas absorption slot of the present invention, when pH reaches 8.0
When, it needs to replace using fresh solution.
PH can be used for aliphatic hydroxyl sulphur after 8.0 or so solution is replaced by fresh solution after the absorption exhaust gas
The synthetic raw material of hydrochlorate water-reducing agent, not will produce secondary pollution.
The present invention mainly utilizes sodium pyrosulfite that can be produced in aqueous solution with aliphatic hydroxyl sulphonate water-reducing agent
Fast chemical reaction occurs for primary waste gases acetone and formaldehyde in journey, and to efficient absorption exhaust gas, the method compares traditional water
Or the effect that buck absorbs will be higher by very much；In addition the vent gas treatment mode that the present invention passes through both forms of spray and fluid-tight
It is combined, further promotes the absorption efficiency for exhaust gas；And for absorbing the sodium metabisulfite solution of acetone and formaldehyde still
It can so be used as the synthesis material of aliphatic hydroxyl sulphonate water-reducing agent, secondary pollution will not be caused.
Description of the drawings：
Fig. 1 is that aliphatic hydroxyl sulphonate water-reducing agent produces waste gas processing method Structure and Process schematic diagram.
1 spray tower for waste gas in figure, 2 waste gas absorption slots, 3 exhaust tubes, 4 production exhaust gas inlets, 5 packing layers, 6 spray ports, 7 is useless
Solution in gas spray column and waste gas absorption slot, 8 circulating pumps, 9 through spray tower for waste gas treated waste gas outlet, 10 exhaust gas outlets
Mouthful, the gas outlet of 11 exhaust tubes.
Specific implementation mode
Exhaust gas enters spray tower for waste gas 1 by production exhaust gas inlet 4 in aliphatic hydroxyl sulphonate water-reducing agent production process,
There is one section of packing layer 5 in spray tower for waste gas 1, and spray tower for waste gas bottom storage has solution 7, driving of the solution 7 in circulating pump 8
Under sprayed by spray port 6, and carry out gas-liquid contact with production exhaust gas in spray tower for waste gas 1 and absorb production exhaust gas；Production is useless
Gas is after the processing of spray tower for waste gas 1, via the exhaust gas in spray tower for waste gas treated waste gas outlet 9 and waste gas absorption slot 2
It after the absorption of waste gas absorption slot 2, is discharged into waste gas absorption slot 2 by gas outlet 11 by exhaust tube 3 gas outlet 10.
Using above-mentioned processing method, solution concentration, the bed stuffing height of spray column, spray flux and waste gas absorption slot are adjusted
Height liquid seal can form the emission-control equipment with different exhaust-gas treatment effects.
Following table gives different embodiments：
The parameter of the different embodiments of table 1
Under different embodiments, tested using exhaust gas.Acetone concentration is above standard 10 times in used exhaust gas,
Concentration of formaldehyde is above standard 20 times, and exhaust gas parameters are as shown in the table：
The composition of 2 test exhaust gas of table
Test result is as follows for specific exhaust gas：
3 exhaust gas test result of table
The processing mode of Examples 1 to 10 can realize the qualified discharge of acetone and formaldehyde, and treatment effeciency is all super
Cross 99%.By analyzing upper table data, it can be found that the spray for improving the concentration of sodium metabisulfite solution, increasing spray column
Amount, the thickness for improving spray column packing layer and the height liquid seal for increasing absorption plant can reduce the concentration of emission of exhaust gas, increase
Add the treatment effeciency of exhaust gas.
Comparative example 1 and 2 shows that the absorption slot of sodium metabisulfite solution helps further to promote the treatment effeciency of exhaust gas,
And height liquid seal is bigger, and exhaust-gas treatment effect is better；The data comparison of embodiment 1 and comparative example 2 is found, is cancelled and is absorbed slot
Afterwards, although exhaust gas is still qualified discharge, concentration of emission increases nearly 2 times.
Comparative example 3 and 4 shows after reducing spray flux that the treatment effeciency of exhaust gas reduces；After cancelling spray, exhaust gas discharge is tight
Weight is exceeded, and the treatment effeciency of acetone only only has 66.86%, and the treatment effeciency of formaldehyde also only has 85.4%, this is absolutely proved
The importance of spray.
Comparative example 5 and 6 shows to reduce the filler layer thickness in spray equipment, the treatment effeciency reduction of exhaust gas；It is sprayed when cancelling
After packing layer in shower device, the concentration of exhaust gas discharge increases nearly 4 times.This illustrates that the addition of packing layer helps to increase gas-liquid
The area of contact, to promote absorption efficiency.
Comparative example 7 and 8 shows after reducing spray sodium metabisulfite solution concentration that the absorption efficiency of exhaust gas is greatly reduced；
It is severely exceeded when adopting water consumption substitution pyrosulfurous acid solution come after spray, exhaust gas discharges, this absolutely proves that sodium pyrosulfite is molten
Liquid has extraordinary assimilation effect to acetone and formaldehyde gas.
It is found by comparing commercially available 2 kinds of device for absorbing tail gas, 2 grades of water spray systems are unable to reach wanting for qualified discharge
It asks, and activated carbon adsorption device is although may be implemented qualified discharge, treatment effeciency compares processing side provided by the present invention
Method is compared and wants poor.
In conclusion the processing method of aliphatic hydroxyl sulphonate water-reducing agent provided by the present invention production exhaust gas have compared with
High treatment effeciency, spray and absorbing liquid can be used for the synthesis material of aliphatic water reducing agent, will not cause secondary pollution, and
Simple in equipment, it is easy to operate.
Claims (2)
1. a kind of processing method of aliphatic hydroxyl sulphonate water-reducing agent production exhaust gas, it is characterised in that：Exhaust-gas treatment dress used
It sets including spray tower for waste gas (1), waste gas absorption slot (2) and exhaust tube (3), is connected by pipeline between three, the exhaust gas spray
It drenches and is equipped with one section of packing layer (5) in tower, solution is housed in spray tower for waste gas (1) and waste gas absorption slot (2)；The processing method
Including：Production exhaust gas is introduced into spray tower for waste gas (1)；After spray tower for waste gas (1), production exhaust gas is fed to waste gas absorption
In slot (2)；It is sent to 15 meters of high altitude discharges through exhaust tube (3) after fluid-tight absorbs；
Solution in the spray tower for waste gas (1) and waste gas absorption slot (2) is the aqueous solution of sodium pyrosulfite；
Described filler layer (5) material is hollow polypropylene microballoon；
The height liquid seal is difference in height of the gas outlet (10) in waste gas absorption slot to liquid level；
The mass fraction of the aqueous solution of the sodium pyrosulfite is 10~30%；
Described filler layer (5) thickness control is between 0.5~1.0 meter；
Spray tower for waste gas (1) middle section solution spraying amount is 20~100kg/ (m2*min)；
The height liquid seal is between 0.5~1 meter.
2. it is according to claim 1 production exhaust gas processing method, which is characterized in that the spray tower for waste gas (1) and give up
The pH value range of solution is no more than 8.0 in aspiration slot (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510623118.4A CN105214463B (en) | 2015-09-25 | 2015-09-25 | A kind of processing method of aliphatic hydroxyl sulphonate water-reducing agent production exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510623118.4A CN105214463B (en) | 2015-09-25 | 2015-09-25 | A kind of processing method of aliphatic hydroxyl sulphonate water-reducing agent production exhaust gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105214463A CN105214463A (en) | 2016-01-06 |
| CN105214463B true CN105214463B (en) | 2018-07-20 |
Family
ID=54983939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510623118.4A Active CN105214463B (en) | 2015-09-25 | 2015-09-25 | A kind of processing method of aliphatic hydroxyl sulphonate water-reducing agent production exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105214463B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107573472B (en) * | 2017-08-31 | 2019-10-29 | 浙江吉盛化学建材有限公司 | A kind of production technology of aliphatic water reducing agent |
| CN110917858A (en) * | 2019-12-13 | 2020-03-27 | 安徽卓锐三维科技有限公司 | Flue gas purification device for laser printing |
| CN113926283A (en) * | 2021-10-19 | 2022-01-14 | 科之杰新材料集团河南有限公司 | Treatment method and treatment device for waste gas generated in production of aliphatic water reducing agent |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201551948U (en) * | 2009-11-24 | 2010-08-18 | 山东聊城鲁西化工第六化肥有限公司 | Tail gas absorption device of methane chloride generating tower |
| CN103691268A (en) * | 2013-12-25 | 2014-04-02 | 华纺股份有限公司 | Method and device for treating waste gas generated by printing and dyeing wastewater |
| CN204193778U (en) * | 2014-10-17 | 2015-03-11 | 河北大唐国际王滩发电有限责任公司 | A kind of double absorption column series connection flue gas desulfur device |
-
2015
- 2015-09-25 CN CN201510623118.4A patent/CN105214463B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105214463A (en) | 2016-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205199283U (en) | Tail gas recovery unit in water -reducing agent production system | |
| CN105214463B (en) | A kind of processing method of aliphatic hydroxyl sulphonate water-reducing agent production exhaust gas | |
| WO2016082269A1 (en) | Method for preparing bio-methane by purifying biogas | |
| CN102061206A (en) | Pressure reduction gas desulfurization method | |
| CN105771553A (en) | Low-concentration formaldehyde waste gas collecting and processing technique and special equipment | |
| CN104926009B (en) | Ammonia-nitrogen wastewater treatment system | |
| CN105344224B (en) | A kind of styrene waste gases processing method | |
| CN207745702U (en) | A kind of tail gas pickling tower prepared by H acid monosodium salt | |
| CN102872693B (en) | Processing method of waste nitric acid fume and device thereof | |
| CN104667709B (en) | Natural gas carbonization treatment system | |
| CN207520829U (en) | One kind is directed to containing ammonia, chlorine tail gas absorption concentrate complete set of equipments | |
| CN103613107A (en) | Biogas slurry deamination and ammonia recovery method | |
| CN203947049U (en) | A kind of device of preparing formaldehyde | |
| CN103570085A (en) | Device for treating high-concentration ammonia nitrogen in coking wastewater by using surfactant | |
| CN204261536U (en) | A kind of hydrogen chloride synthesis circulation of tail gas absorption system | |
| CN208824247U (en) | The processing unit of hydrogen purification in a kind of plus hydrogen tail gas | |
| CN204170587U (en) | A kind of device strengthening iodomethane in absorption acetate acid tail gas | |
| CN102489121A (en) | Method for treating waste gas in production of naphthalene based superplasticizer and special equipment utilizing same | |
| CN203816465U (en) | Waste gas absorption tower | |
| CN204057979U (en) | A kind of high density ammoniacal liquor match system | |
| CN107008133A (en) | Phenmethylol produces waste gas and integrated wastewater treatment plant | |
| CN103566731B (en) | A kind of continuous absorption and the method separating carbon dioxide | |
| CN202506298U (en) | Device for reducing sulfuric acid production exhaust emissions | |
| CN104888586B (en) | Method and device for flue gas desulfurization by two times of seawater washing | |
| CN204637940U (en) | A kind of oxynitrides waste gas comprehensive treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |