CN201882936U - ADC foamer condensation mother liquor and washes recycle device - Google Patents
ADC foamer condensation mother liquor and washes recycle device Download PDFInfo
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- CN201882936U CN201882936U CN2010206503707U CN201020650370U CN201882936U CN 201882936 U CN201882936 U CN 201882936U CN 2010206503707 U CN2010206503707 U CN 2010206503707U CN 201020650370 U CN201020650370 U CN 201020650370U CN 201882936 U CN201882936 U CN 201882936U
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- mother liquor
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Abstract
The utility model discloses an ADC foamer condensation mother liquor and washes recycle device which uses the chlorine contained in the chlor-alkali production tail gas to treat the condensation mother liquor generated in the ADC foamer productive technology so as to obtain acid sodium hydrosulfide solution and hydrochloric acid and realize condensation mother liquor zero release. The sodium hydrosulfide solution obtained by the device can be used for producing sodium fluosilicate, and the device uses the waste gas to treat the liquid waste, is low in operating cost and high in economic benefit, and has no secondary pollution to the environment.
Description
Technical field
The utility model relates to chemical field, especially chemical industry middle and high concentration NH
3– N recovery of Waste Water device is specially ADC foaming agent condensed mother liquor and washes recycle device.
Background technology
The ADC whipping agent is the AC whipping agent again, the formal name used at school Cellmic C 121, and it can be used as the whipping agent of polyethylene, polyvinyl chloride, polypropylene, polymeric amide, Polyurethane and various rubber.It has that gas forming amount is big, bubble evenly, gas that goods are not polluted, produced is nontoxic, mould is not corroded, easily controlled temperature, do not influence and solidify or characteristics such as shaping speed, be most widely used efficient aerating powder.Just because of this, the ADC whipping agent is the chemical foaming agent of foam production producer first-selection always, is the kind of production and consumption amount maximum in the whipping agent field in the world.
China is world ADC whipping agent first big producing country, mainly adopts Wyler's process production, is raw material with urea, caustic soda, chlorine, and this technology is made up of workshop sections such as clorox preparation, rough hydrazine hydrate, freezing desalination, condensation, oxidation, dryings.The ammonium ion, sulfate ion, sodium ion and the chlorion that wherein in the hydrazo-dicarbonamide mother liquor (being called condensed mother liquor) of condensation workshop section discharging and washes, contain high density.These waste water that contain ammonia nitrogen in high density will stimulate waterplant excessive multiplications such as algae as not treated lake, the river of directly entering, and form eutrophication phenomenons such as red tide, the existence of hydrocoles such as fish is constituted a threat to, and be very big pollution to environment.
Present treatment process to this condensed mother liquor and washes mainly contains uses alkali extraction method, evaporation and freeze crystallization and biochemical treatment process.Use alkali extraction method, the principle of this method is to extract free state ammonia after adding alkali, though have certain effect, shortcoming is that ammonia nitrogen can not be removed fully, and the alkali number that consumes is too much, causes the processing cost height; Evaporation and freeze crystallization are to condensed mother liquor and washes replaces freezing and evaporate, therefrom reclaim(ed) sulfuric acid sodium and ammonium chloride, and this method energy expenditure is excessive, and cost is very high; Handle condensed mother liquor with biochemical treatment process, inorganic salt in the waste water (NaCl) to reach can be biochemical concentration, must dilution 30-40 doubly, not having in the condensed mother liquor during ADC produces simultaneously can biochemical carbon source, for keeping normal biochemical treatment process, also need other supplementary carbon source.Therefore these three kinds of methods all have certain defective at present.
Ammonia nitrogen in the ADC whipping agent waste water is handled difficulty and processing cost height, how to administer just can accomplish little and treatment cost is low to the pollution of environment, make the production of ADC whipping agent can environmental protection, operation efficiently, be a problem of needing solution badly.
Summary of the invention
Not enough in order to overcome in the above-mentioned prior art, the utility model provides a kind of ADC foaming agent condensation waste water reclamation use device, this device utilizes condensed mother liquor and the washes that produces in the chlorine treatment ADC whipping agent production technique that contains in some tail gas that produce in the chlor-alkali production, finally obtain sodium bisulfate solution and hydrochloric acid, accomplish " condensed mother liquor " zero release.Utilize this sodium bisulfate solution that obtains to can be used for producing Sodium Silicofluoride, this installs with " waste gas " improvement " waste liquid ", and running cost is low, the economic benefit height.
The purpose of this utility model is achieved in that
ADC foaming agent condensed mother liquor and washes recycle device, mother liquor collecting tank 1 passes through pipe connection with mother liquor cycle of treatment pond 2, mother liquor cycle of treatment pond 2 is connected with reaction tower 4 by pipeline, reaction tower 4 and rinse bath 6 pipe connection, rinse bath 6 and packing tower 7 pipe connection, packing tower 7 and water cycle cuvette 8 pipe connection;
Mother liquor cycle of treatment pond 2 also with metabisulfite solution hold-up vessel 5 pipe connection; Water cycle cuvette 8 also with hydrochloric acid hold-up vessel 10 pipe connection;
Mother liquor cycle of treatment pond 2 comprises first pipeline a-1 that is connected with reaction tower 4 tops and the second pipeline a-2 that is connected with reaction tower 4 bottoms with connecting tube between the reaction tower 4; Packing tower 7 comprises the 3rd pipeline b-1 that is connected with packing tower 7 tops and the 4th pipeline b-2 that is connected with packing tower 7 bottoms with connecting tube between the water cycle cuvette 8;
The first pipeline a-1 is provided with first recycle pump 3; The 3rd pipeline b-1 is provided with second recycle pump 9.
Advantage of the present utility model is: in conjunction with the chlor-alkali industry own characteristic, utilize the chloride treating tail gas condensation waste liquid of chlor-alkali industry, fully recycle the material that produces in the wastewater treatment process simultaneously: sodium sulfate and hydrogenchloride, with " waste gas " improvement " waste liquid ", reduce cost for wastewater treatment, realize the condensed mother liquor zero release, environment is not had secondary pollution, the utility model is simple in structure, and efficient height, running cost are low.
Description of drawings
Fig. 1 is a process flow sheet of the present utility model:
Among the figure be: mother liquor collecting tank 1, mother liquor cycle of treatment pond 2, first recycle pump 3, reaction tower 4, metabisulfite solution hold-up vessel 5, rinse bath 6, packing tower 7, water cycle cuvette 8, second recycle pump 9, hydrochloric acid hold-up vessel 10, the first pipeline a-1, the second pipeline a-2, the 3rd pipeline b-1, the 4th pipeline b-2.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
ADC foaming agent condensed mother liquor and washes recycle device, mother liquor collecting tank 1 passes through pipe connection with mother liquor cycle of treatment pond 2, mother liquor cycle of treatment pond 2 is connected with reaction tower 4 by pipeline, reaction tower 4 and rinse bath 6 pipe connection, rinse bath 6 and packing tower 7 pipe connection, packing tower 7 and water cycle cuvette 8 pipe connection;
Mother liquor cycle of treatment pond 2 also with metabisulfite solution hold-up vessel 5 pipe connection; Water cycle cuvette 8 also with hydrochloric acid hold-up vessel 10 pipe connection;
Mother liquor cycle of treatment pond 2 comprises first pipeline a-1 that is connected with reaction tower 7 tops and the second pipeline a-2 that is connected with reaction tower 4 bottoms with connecting tube between the reaction tower 4; Packing tower 7 comprises the 3rd pipeline b-1 that is connected with packing tower 7 tops and the 4th pipeline b-2 that is connected with packing tower 7 bottoms with connecting tube between the water cycle cuvette 8;
The first pipeline a-1 is provided with first recycle pump 3; The 3rd pipeline b-1 is provided with second recycle pump 9;
ADC foaming agent condensation waste water reclamation utilizes method technology to be:
A, ADC foaming agent condensed mother liquor and washes are concentrated and are discharged in the mother liquor collecting tank 1, are disposed in the Recycling Mother Solution treating pond 2 from mother liquor collecting tank 1 then;
Condensed mother liquor in b, the mother liquor cycle of treatment pond 2 and washes are sent into reaction tower 7 tops by first recycle pump 3 and are reacted fully with the chloride tail gas that enters from reaction tower 7 bottoms;
The solution that reacted in c, the b step is sent in the mother liquor cycle of treatment pond 2 by the second pipeline a-2, mixes, and continues to participate in reaction, NH in circulatory pool
3– N content is less than 5 mg/L, and the metabisulfite solution of generation enters metabisulfite solution hold-up vessel 5 and stores; Nitrogen that produces in the reaction process and hydrogenchloride enter in the rinse bath 6 by the pipeline between reaction tower 4 and the rinse bath 6 and wash fully, remove ammonium chloride;
Send in the packing tower 7 by pipeline through the gas of washing removal ammonium chloride in d, the c step, open second recycle pump 9 simultaneously, water in the water cycle cuvette 8 is sent into packing tower 7 tops contact with the back flow of gas of sending into packing tower 7 bottoms through washing removal ammonium chloride from top to bottom, absorb hydrogen chloride gas wherein;
The noncondensable gas nitrogen emptying that produces in the water absorption process in e, the d step; Residuum enters in the water cycle cuvette 8 by the 4th pipeline b-2, send into packing tower top by second recycle pump 9 again, continue the absorption that secondary participates in hydrogen chloride gas, the hydrogen chloride gas in this process generates hydrochloric acid, and stores by hydrochloric acid hold-up vessel 10;
Washings in the rinse bath 6 is strong acid or its sodium salt; Ammonium chloride concentration in the rinse bath 6 enters reaction tower 4 processing ammonia nitrogen and recovery wherein after 20%.
Described chloride tail gas comprises liquid chlorine tail gas, Mono Chloro Acetic Acid tail gas, and the chloride tail gas during ADC whipping agent oxidation section tail gas and other chlorine productss are produced is when chlorine content in the tail gas can add 5-50% electrolytic chlorine gas less than 2% the time.
Withdrawal mother liquor and the washes of centralized collection in mother liquor collecting tank 1 is discharged in the mother liquor cycle of treatment pond 2, wherein contains NH
4 +21050mg/L, SO
4 2-1.8-3.7%, Na
+0.8-1.7%, Cl
-0.6-1.5%, to open first recycle pump 3 and send into reaction tower 4 tops and flow down, liquid chlorine tail gas enters from reaction tower 4 bottoms and the mother liquor reaction, and reaction solution flows back to mother liquor cycle of treatment pond 2 from pipeline a-2, continues to participate in reaction.NH in mother liquor cycle of treatment pond 2
3-N content is less than 5 mg/L, and the sodium bisulfate solution of generation enters metabisulfite solution hold-up vessel 5 and stores.The gas that comes out from reaction tower 4 enters rinse bath 6, enters packing tower 7 bottoms behind sulphuric acid soln removal ammonium chloride wherein.Open second recycle pump 9, the water in the water cycle cuvette 8 is entered packing tower 7 flow down the back flow of gas that enters with packing tower 7 bottoms and contact from the top, hydrogen chloride gas wherein generates hydrochloric acid and enters water cycle cuvette 8, continues to participate in reaction.Entering hydrochloric acid storage storage tank 10 when content of hydrochloric acid reaches 28-30% in the water cycle cuvette 8 stores; The noncondensable gas nitrogen emptying of coming out from packing tower 7 tops.
Withdrawal mother liquor and the washes of centralized collection in mother liquor collecting tank 1 is discharged in the mother liquor cycle of treatment pond 2, wherein contains NH
4 +18620mg/L, SO
4 2-1.8-3.7%, Na
+0.8-1.7%, Cl
-0.6-1.5%, to open first recycle pump 3 and send into reaction tower 4 tops and flow down, Mono Chloro Acetic Acid tail gas enters from reaction tower 4 bottoms and the mother liquor reaction, and reaction solution flows back to mother liquor cycle of treatment pond 2 from pipeline a-2, continues to participate in reaction.NH in mother liquor cycle of treatment pond 2
3-N content is less than 5 mg/L, and the sodium bisulfate solution of generation enters metabisulfite solution hold-up vessel 5 and stores.The gas that comes out from reaction tower 4 enters rinse bath 6, enters packing tower 7 bottoms behind metabisulfite solution removal ammonium chloride wherein.Open second recycle pump 9, the water in the water cycle cuvette 8 is entered packing tower 7 flow down the back flow of gas that enters with packing tower 7 bottoms and contact from the top, hydrogen chloride gas wherein generates hydrochloric acid and enters water cycle cuvette 8, continues to participate in reaction.Entering hydrochloric acid storage storage tank 10 when content of hydrochloric acid reaches 28-30% in the water cycle cuvette 8 stores; The noncondensable gas nitrogen emptying of coming out from packing tower 7 tops.
Withdrawal mother liquor and the washes of centralized collection in mother liquor collecting tank 1 is discharged in the mother liquor cycle of treatment pond 2, wherein contains NH
4 +18620mg/L, SO
4 2-1.8-3.7%, Na
+0.8-1.7%, Cl
-0.6-1.5%, to open first recycle pump 3 and send into reaction tower 4 tops and flow down, ADC whipping agent oxidation section tail gas enters from reaction tower 4 bottoms and the mother liquor reaction, and reaction solution flows back to mother liquor cycle of treatment pond 2 from pipeline a-2, continues to participate in reaction.NH in mother liquor cycle of treatment pond 2
3-N content is less than 5 mg/L, and the sodium bisulfate solution of generation enters metabisulfite solution hold-up vessel 5 and stores.The gas that comes out from reaction tower 4 enters rinse bath 6, enters packing tower 7 bottoms behind sodium bisulfate removal ammonium chloride wherein.Open second recycle pump 9, the water in the water cycle cuvette 8 is entered packing tower 7 flow down the back flow of gas that enters with packing tower 7 bottoms and contact from the top, hydrogen chloride gas wherein generates hydrochloric acid and enters water cycle cuvette 8, continues to participate in reaction.When content of hydrochloric acid reaches 28-30% in the water cycle cuvette, enter the hydrochloric acid storage and wear jar 10 storages.The noncondensable gas nitrogen emptying of coming out from packing tower 7 tops.
Advantage of the present utility model is: in conjunction with the chlor-alkali industry own characteristic, utilize the chloride treating tail gas condensation waste liquid of chlor-alkali industry, fully recycle the material that produces in the wastewater treatment process simultaneously: sodium sulfate and hydrogenchloride, with " waste gas " improvement " waste liquid ", reduce cost for wastewater treatment, realize the condensed mother liquor zero release, environment is not had secondary pollution, the utility model is simple in structure, and efficient height, running cost are low.
Above embodiment only is used to illustrate preferred implementation of the present utility model; but the utility model is not limited to above-mentioned embodiment; in the ken that described field those of ordinary skill is possessed; any modification of being done within spirit of the present utility model and the principle, be equal to and substitute and improvement etc., it all should be encompassed within the technical scheme scope that the utility model asks for protection.
Claims (4)
1.ADC foaming agent condensed mother liquor and washes recycle device, it is characterized in that: mother liquor collecting tank (1) passes through pipe connection with mother liquor cycle of treatment pond (2), mother liquor cycle of treatment pond (2) is connected with reaction tower (4) by pipeline, reaction tower (4) and rinse bath (6) pipe connection, rinse bath (6) and packing tower (7) pipe connection, packing tower (7) and water cycle cuvette (8) pipe connection.
2. ADC foaming agent condensed mother liquor according to claim 1 and washes recycle device is characterized in that: mother liquor cycle of treatment pond (2) also with metabisulfite solution hold-up vessel (5) pipe connection; Water cycle cuvette (8) also with hydrochloric acid hold-up vessel (10) pipe connection.
3. ADC foaming agent condensed mother liquor according to claim 1 and washes recycle device is characterized in that: mother liquor cycle of treatment pond (2) comprises first pipeline (a-1) that is connected with reaction tower (4) top and second pipeline (a-2) that is connected with reaction tower (4) bottom with connecting tube between the reaction tower (4); Packing tower (7) comprises the 3rd pipeline (b-1) that is connected with packing tower (7) top and the 4th pipeline (b-2) that is connected with packing tower (7) bottom with connecting tube between the water cycle cuvette (8).
4. ADC foaming agent condensed mother liquor according to claim 3 and washes recycle device is characterized in that: first pipeline (a-1) is provided with first recycle pump (3); The 3rd pipeline (b-1) is provided with second recycle pump (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206503707U CN201882936U (en) | 2010-12-09 | 2010-12-09 | ADC foamer condensation mother liquor and washes recycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206503707U CN201882936U (en) | 2010-12-09 | 2010-12-09 | ADC foamer condensation mother liquor and washes recycle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201882936U true CN201882936U (en) | 2011-06-29 |
Family
ID=44180474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206503707U Expired - Lifetime CN201882936U (en) | 2010-12-09 | 2010-12-09 | ADC foamer condensation mother liquor and washes recycle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201882936U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153157A (en) * | 2010-12-09 | 2011-08-17 | 河南煤业化工集团有限责任公司 | ADC (Azodicarbonamide) foaming agent condensation mother liquor as well as washing waste water recycling device and method |
| CN106277478A (en) * | 2016-08-08 | 2017-01-04 | 田晋丞 | Sulfur acid sodium waste water treatment process in precipitated silica production process |
| CN111377833A (en) * | 2018-12-29 | 2020-07-07 | 江西世龙实业股份有限公司 | Preparation method of AC foaming agent |
| CN115960019A (en) * | 2022-12-30 | 2023-04-14 | 江苏索普化工股份有限公司 | Method for treating ADC foaming agent condensation mother liquor |
-
2010
- 2010-12-09 CN CN2010206503707U patent/CN201882936U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153157A (en) * | 2010-12-09 | 2011-08-17 | 河南煤业化工集团有限责任公司 | ADC (Azodicarbonamide) foaming agent condensation mother liquor as well as washing waste water recycling device and method |
| CN102153157B (en) * | 2010-12-09 | 2012-07-25 | 河南煤业化工集团有限责任公司 | ADC (Azodicarbonamide) foaming agent condensation mother liquor as well as washing waste water recycling device and method |
| CN106277478A (en) * | 2016-08-08 | 2017-01-04 | 田晋丞 | Sulfur acid sodium waste water treatment process in precipitated silica production process |
| CN111377833A (en) * | 2018-12-29 | 2020-07-07 | 江西世龙实业股份有限公司 | Preparation method of AC foaming agent |
| CN111377833B (en) * | 2018-12-29 | 2022-05-20 | 江西世龙实业股份有限公司 | Preparation method of AC foaming agent |
| CN115960019A (en) * | 2022-12-30 | 2023-04-14 | 江苏索普化工股份有限公司 | Method for treating ADC foaming agent condensation mother liquor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110629 Effective date of abandoning: 20120718 |