CN205874093U - Caprolactam waste water preprocessing device - Google Patents
Caprolactam waste water preprocessing device Download PDFInfo
- Publication number
- CN205874093U CN205874093U CN201620868367.XU CN201620868367U CN205874093U CN 205874093 U CN205874093 U CN 205874093U CN 201620868367 U CN201620868367 U CN 201620868367U CN 205874093 U CN205874093 U CN 205874093U
- Authority
- CN
- China
- Prior art keywords
- waste water
- sensor
- regulation valve
- blender
- pipeline
- 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
- 0 C(CC1)CCC11*C2(CCCCC2)NCC1 Chemical compound C(CC1)CCC11*C2(CCCCC2)NCC1 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model provides a caprolactam waste water preprocessing device, includes that waste water reation kettle top warp way pipeline and waste gas absorption tank top be connected, waste gas absorption tank bottom warp way pipeline is connected with waste water reation kettle upper portion, waste water reation kettle bottom warp way pipeline is connected with the waste water delivery pump, and the waste water delivery pump line pipe be connected with the blender, and the blender is connected to waste water biochemical treatment device. Adopt the device to be oleum, sodium hydroxide solution to caprolactam waste water preliminary treatment, raw materials, treatment cost is cheap, no secondary pollution. Process flow is simple, the equipment investment expense is low. It all is automatically regulated that the acidification adds the alkali number, and degree of automation is high.
Description
Technical field
This utility model relates to a kind of wastewater of caprolactam production pretreatment unit, belongs to field of chemical equipment.
Background technology
Caprolactam is a kind of important Organic Chemicals, is mainly used as producing polyamide 6 engineering plastics and polyamide 6
Fiber, and cyclohexanone-oxime is the key intermediate producing caprolactam, current domestic cyclohexanone-oxime is mainly by Ketohexamethylene amidoxime
Change reaction preparation.Cyclohexanone oxamidinating reaction is to carry out under 0.4MPa (A), 83 DEG C, about 3～4%wt catalyst concn, hexamethylene
Ketone, gas ammonia, hydrogen peroxide add reactor by a certain percentage, and in solvent tertiary butanol, reaction generates cyclohexanone-oxime, reaction equation
As follows:
In addition to above-mentioned primary response, the side reaction such as generation being also accompanied by the decomposition of hydrogen peroxide, heavy thing occurs:
4H2O2+2NH3→N2O+7H2O+Q2 (2)
3H2O2+2NH3→N2+6H2O+Q3 (3)
2H2O2→2H2O+O2+Q4 (4)
……
The waste water of oximes device mainly comes extremely: the waste water that oximes primary response and side reaction produce, raw material hydrogen peroxide, ring
The waste water that hexanone is brought into, tail gas absorption tower top be absorb ammonia in tail gas, demineralized water that the tert-butyl alcohol adds.These waste water pass through
At the bottom of extraction tower tower, in backflash aqueous phase side entrance water vaporization tower recovery waste water, most toluene, the tert-butyl alcohol etc. are rear to waste water
Pretreatment unit reduces the ammonia nitrogen in waste water and COD, finally delivers to the waste water collection that waste water biochemical treatment device comes with other devices
Middle process.
This effluent part mainly contains other that side reaction in toluene, the tert-butyl alcohol, cyclohexanone-oxime, Ammoximation reaction still generates
Organic impurities, as being directly entered biochemical treatment apparatus, is likely to result in the mortality of microorganism, it is therefore necessary to entering biochemistry
Before processing means, waste water is processed again, reduce COD, ammonia nitrogen in waste water.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, it is provided that a kind of wastewater of caprolactam production pretreatment unit.
A kind of wastewater of caprolactam production pretreatment unit, including waste water reaction still, waste water reaction still top via line pipe
Road is connected with waste gas absorption groove top, and waste gas absorption trench bottom via line pipeline is connected with waste water reaction still top；Waste water reaction
Bottom portion via line pipeline is connected with waste water delivery pump, and waste water delivery pump cable tubing is connected with blender, and blender is connected to
Waste water biochemical treatment device.
Being provided with agitator in waste water reaction still, reactor wall is provided with on-line sensor 1；Waste water reaction still top is provided with acid
Liquid conveying pipeline and waste water conveying pipeline, acid solution conveying pipeline is provided with oleum regulation valve, oleum regulation valve and reactor wall
Between be provided with PH transmitter 1, and, sensor 1, oleum regulation valve, PH transmitter 1 composition control loop.
Blender top is additionally provided with alkali liquor conveying pipeline, and between blender and waste water biochemical treatment device, pipeline is provided with biography
Sensor 2, alkali liquor conveying pipeline are provided with alkali liquor regulation valve, and alkali liquor regulation valve is directly additionally provided with PH sensor 2, alkali with sensor 2
Liquid regulation valve, PH transmitter 2 and sensor 2 composition control loop.
Gas absorption cell is provided with blow-down pipe.
Technique of the present utility model is achieved in that employing wastewater of caprolactam production pretreatment unit, including following
Step:
(1) it is passed through in waste water reaction still to the cyclohexanone oxamidinating waste water at the bottom of water vaporization tower in the future, adds oleum
Being uniformly mixed, the oleum amount being automatically adjusted addition by oleum regulation valve controls the online pH meter of waste water reaction still
Reading is 4～6.5；
(2) waste water mixed liquor is squeezed into blender mixed with the alkali liquor added by waste water delivery pump from waste water reaction bottom portion
Closing uniformly, the pH of the alkali liquor amount regulation waste water mixed liquor being automatically adjusted addition by alkali liquor regulation valve is to be mixed by waste water after 7～8
Liquid is driven in follow-up wastewater biochemical treatment device.
(3) waste gas in reactor then enters into waste gas absorption groove by reactor top gas phase pipeline and is absorbed useless by waste water
SO in gas3Emptying Deng after available gas, absorbing liquid enters back into waste water reaction still and processes.
A kind of technique reducing cyclohexanone oxamidinating ammonia nitrogen in waste water and COD that this utility model provides, has following useful
Effect:
1, with oleum, sodium hydroxide solution as raw material, processing cost is cheap, non-secondary pollution.
2, technological process is simple, equipment investment expense is low.
3, acid adding caustic dosage is all automatically adjusted, and automaticity is high.
Accompanying drawing explanation
Fig. 1 is a kind of wastewater of caprolactam production pretreatment unit structural representation, and 1. waste water reaction still, 2. reactor stirs
Mix device, 3. waste gas absorption groove, 4. oleum regulation valve, 5.PH transmitter 1,6.PH sensor 1,7. waste water delivery pump, 8. mixed
Clutch, 9. alkali liquor regulation valve, 10.PH transmitter 2,11.PH sensor 2,12. blow-down pipe.
Detailed description of the invention
Embodiment 1
Containing toluene, the tert-butyl alcohol, cyclohexanone-oxime, other organic impuritiess waste water from the bottom of water vaporization tower tower to waste water reaction
Use the mode of continuous stirring to mix homogeneously with oleum in still, be automatically adjusted being fuming of addition by oleum regulation valve
It is 4～6.5 that sulfuric acid amount controls waste water reaction still online pH meter reading, and waste water mixed liquor passes through waste water delivery pump from waste water reaction still
Bottom is squeezed in blender and is mixed homogeneously with the alkali liquor added, and the alkali liquor amount regulation being automatically adjusted addition by alkali liquor regulation valve is useless
The pH of water mixed liquid is to be driven in follow-up wastewater biochemical treatment device by waste water mixed liquor after 7～8.Waste gas in reactor then leads to
Cross reactor top gas phase pipeline and enter into waste gas absorption groove by the SO in waste water absorption waste gas3Empty Deng after available gas, inhale
Receipts liquid enters back into waste water reaction still and processes.
Embodiment 2
A kind of wastewater of caprolactam production pretreatment unit, including waste water reaction still 1, waste water reaction still 1 top via line
Pipeline is connected with waste gas absorption groove 3 top, and bottom waste gas absorption groove 3, via line pipeline is connected with waste water reaction still 1 top；Waste water
Bottom reactor 1, via line pipeline is connected with waste water delivery pump 7, and waste water delivery pump 7 cable tubing is connected with blender 8, mixing
Device 8 is connected to waste water biochemical treatment device.
Being provided with agitator 2 in waste water reaction still 1, reactor wall is provided with on-line sensor 16；Waste water reaction still 1 top is arranged
Having acid solution conveying pipeline and waste water conveying pipeline, acid solution conveying pipeline is provided with oleum regulation valve 4, and oleum regulation valve 4 is with anti-
Answer and between still wall, be provided with PH transmitter 15, and, sensor 16, oleum regulate valve 4, PH transmitter 15 composition control loop.
Blender 8 top is additionally provided with alkali liquor conveying pipeline, and between blender 8 and waste water biochemical treatment device, pipeline is provided with
Sensor 211, alkali liquor conveying pipeline are provided with alkali liquor regulation valve 9, and alkali liquor regulation valve 9 is directly additionally provided with PH with sensor 211 and passes
Sensor 210, alkali liquor regulation valve 9, PH transmitter 210 and sensor 211 composition control loop.
Waste gas absorption groove 3 is provided with blow-down pipe 12.
Claims (4)
1. a wastewater of caprolactam production pretreatment unit, including waste water reaction still (1), it is characterised in that: waste water reaction still
(1) via line pipeline in top is connected with waste gas absorption groove (3) top, and waste gas absorption groove (3) bottom via line pipeline is anti-with waste water
Still (1) top is answered to connect；Waste water reaction still (1) bottom via line pipeline is connected with waste water delivery pump (7), waste water delivery pump (7)
Cable tubing is connected with blender (8), and blender (8) is connected to waste water biochemical treatment device.
Wastewater of caprolactam production pretreatment unit the most according to claim 1, it is characterised in that: waste water reaction still (1)
Inside being provided with agitator (2), reactor wall is provided with on-line sensor 1(6)；Waste water reaction still (1) top is provided with acid solution conveying pipeline
And waste water conveying pipeline, acid solution conveying pipeline is provided with oleum regulation valve (4), between oleum regulation valve (4) and reactor wall
Be provided with PH transmitter 1(5), and, sensor 1(6), oleum regulation valve (4), PH transmitter 1(5) composition control loop.
Wastewater of caprolactam production pretreatment unit the most according to claim 1, it is characterised in that: blender (8) top
Being additionally provided with alkali liquor conveying pipeline, between blender (8) and waste water biochemical treatment device, pipeline is provided with sensor 2(11), alkali liquor
Conveying pipeline be provided with alkali liquor regulation valve (9), alkali liquor regulation valve (9) and sensor 2(11) between be additionally provided with PH sensor 2
(10), alkali liquor regulation valve (9), PH transmitter 2(10) and sensor 2(11) composition control loop.
Wastewater of caprolactam production pretreatment unit the most according to claim 1, it is characterised in that: waste gas absorption groove (3)
It is provided with blow-down pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620868367.XU CN205874093U (en) | 2016-08-11 | 2016-08-11 | Caprolactam waste water preprocessing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620868367.XU CN205874093U (en) | 2016-08-11 | 2016-08-11 | Caprolactam waste water preprocessing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205874093U true CN205874093U (en) | 2017-01-11 |
Family
ID=57703394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620868367.XU Active CN205874093U (en) | 2016-08-11 | 2016-08-11 | Caprolactam waste water preprocessing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205874093U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039339A (en) * | 2020-01-07 | 2020-04-21 | 沧州旭阳化工有限公司 | Wastewater treatment system |
| CN111547943A (en) * | 2020-05-13 | 2020-08-18 | 福建天辰耀隆新材料有限公司 | Pretreatment and treatment method for wastewater produced in cyclohexanone oxime production by cyclohexanone ammoximation method |
-
2016
- 2016-08-11 CN CN201620868367.XU patent/CN205874093U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039339A (en) * | 2020-01-07 | 2020-04-21 | 沧州旭阳化工有限公司 | Wastewater treatment system |
| CN111547943A (en) * | 2020-05-13 | 2020-08-18 | 福建天辰耀隆新材料有限公司 | Pretreatment and treatment method for wastewater produced in cyclohexanone oxime production by cyclohexanone ammoximation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101979349B (en) | Tubular pyrohydrolysis treatment method and device for sludge | |
| CN106698561B (en) | A kind of urea method preparation ADC foaming agent biruea condensation sewage-treatment plant and its application method | |
| CN106976949A (en) | A kind of oxidation treatment method of Leachate site biological treatment water outlet | |
| CN205874093U (en) | Caprolactam waste water preprocessing device | |
| CN104193058B (en) | A kind of gold mine cyanide wastewater comprehensive processing method | |
| CN104496004A (en) | High-concentration organic pesticide wastewater supercritical water oxidation treatment system and method | |
| CN105502842B (en) | The waste water Fenton oxidation life assemblage processing method and its device that a kind of sludge circulation utilizes | |
| CN203807156U (en) | Integrated chlorine dioxide preparation device | |
| CN201158590Y (en) | Chlorine dioxide generator | |
| CN103864019B (en) | A kind of chlorine dioxide preparation apparatus of integration and method | |
| CN108423953A (en) | Recovery of nitrogen and phosphorus system and method in a kind of municipal sludge based on supercritical technology | |
| CN101412499A (en) | Chlorine dioxide continuous generation technique by chemical method and special equipment therefor | |
| CN207659165U (en) | A kind of Fenton oxidation reaction tower apparatus | |
| CN108191029A (en) | A kind of device and method of chemistry removal nitrite | |
| CN211800093U (en) | Disinfectant diluting device for secondary water supply tank | |
| CN201495121U (en) | Multifunctional chlorine dioxide disinfection device | |
| CN103951142A (en) | Treatment method and device for cyclohexanone ammoximation wastewater | |
| CN103752244B (en) | A kind of micro-structured reactor for implementing chlorine and bromine iodide ion solution reaction | |
| CN210237220U (en) | Device for treating wastewater by catalytic oxidation of ozone | |
| CN105601014A (en) | Ammonia-nitrogen wastewater resourceful treatment system and treatment method of ammonia-nitrogen wastewater resourceful treatment system | |
| CN106396187A (en) | Cyanide wastewater treating and recycling method | |
| CN205740599U (en) | A kind of high-concentration coal gasification waste water processing system | |
| CN106745304B (en) | A method of preparing ferrate solution online | |
| CN206089151U (en) | Fenton oxidation reacts integrated device | |
| CN203128187U (en) | Chlorine dioxide generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |