CN104085936A - Embedded double-fluid efficient energy-saving deamination system - Google Patents
Embedded double-fluid efficient energy-saving deamination system Download PDFInfo
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- CN104085936A CN104085936A CN201410241518.4A CN201410241518A CN104085936A CN 104085936 A CN104085936 A CN 104085936A CN 201410241518 A CN201410241518 A CN 201410241518A CN 104085936 A CN104085936 A CN 104085936A
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- deamination
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- ammonia
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
An embedded double-fluid efficient energy-saving deamination system belongs to the technical field of sewage processing. Equipment mainly comprises a lifting pump, a circulating pump, a heat exchanger, a flow-pushing pressurizing blower fan, and an embedded double-fluid efficient energy-saving deamination tower. In a technological process, ammonia-nitrogen wastewater subjected to heat exchanging enters the tower body, and subjected to deamination by flow-pushing pressurizing steam and fresh steam; and at the same time, ammonia-containing steam is absorbed by circulating ammonium sulfate and circulating dilute sulfuric acid and an ammonium sulfate solution is obtained, and purified steam is cycled for usage by a flow-pushing pressurizing kettle. The invention provides the ammonia-nitrogen wastewater processing equipment which is high in efficiency, low in steam consumption and small in occupied space, and also provides the ammonia-nitrogen wastewater processing technology.
Description
Technical field
The present invention relates to trade effluent separating device and make field, specifically relate to by adopting an art breading technology for a vapor tower plug-flow supercharging and embedded double-current matter, reach the system that the processing of ammonia nitrogen waste water and resource utilization are carried out and utilized cycling hot simultaneously.
Background technology
Ammonia and nitrogen pollution is mainly, when ammonia nitrogen concentration increases in water body, can cause water eutrophication, makes organism in water raised growth.After these biological deaths, in microorganism decomposition course in water, consumed a large amount of oxygen, thereby made water body severe depletion of oxygen, caused organism in water mortality, thereby corrupt water quality makes again microorganism amount reproduction cause water body muddiness, stench, severe contamination water body.Along with < < national environmental protection " 12 " planning > > is formal, externally announce.< < planning > > proposes, China " 12 " principal pollutant reduced discharging target: by 2015, chemical oxygen demand (COD) total emission volumn will reduce by 8% than 2010, ammonia nitrogen total emission volumn reduces by 10%, sulfur dioxide emissions total amount reduces by 8%, and discharged nitrous oxides total amount reduces by 10%.Wherein ammonia nitrogen is as " 12 " environment protection leading indicator, and the total emission volumn of 2015 will decline 10% from 264.4 ten thousand tons in 2010, reaches the target of 238.0 ten thousand tons.Ammonia nitrogen has surpassed chemical oxygen demand (COD) becomes the leading indicator that affects water quality.In industries such as chemical fertilizer, agricultural chemicals, whipping agent, catalyzer and textile printing and dyeings, can produce a large amount of ammonia nitrogen waste waters.These enterprises are being faced with unprecedented reduction of discharging pressure.
The various technology processes that ammonia nitrogen waste water is processed both at home and abroad, have advantage and deficiency separately, due to the difference on different wastewater properties, also do not have a kind of general method can process all ammonia nitrogen waste waters.Therefore, must be for the wastewater property of different commercial runs, and the contained composition of waste water gos deep into systematic research, selects and definite treatment technology and technique.At present, biological denitrificaion method is mainly used in the processing containing organic low ammonia nitrogen concentration wastewater from chemical industry and sanitary sewage, and this law technology is reliable, and treatment effect is good.For middle and high concentration ammonia nitrogen wastewater, mainly adopt blow-off method or steam stripped method, blow-off method is that waste water is adjusted to alkalescence, then in stripping tower, pass into air or steam, by gas-to-liquid contact by the free ammonia stripping in waste water to atmosphere or steam, make ammonia nitrogen transfer to meteorology from liquid phase.Pass into steam, the wastewater temperature that can raise, thereby while improving certain pH value by the ratio of the ammonia of stripping.While processing ammonia by this method, need the free ammonia total amount of considering discharge should meet the atmospheric emission standard of ammonia, in order to avoid cause secondary pollution.Low concentration wastewater is used air stripping conventionally at normal temperatures, make steel, the high-concentration waste water of the industry such as petrochemical complex, chemical fertilizer, organic chemical industry's non-ferrous metal metallurgy conventional steam carry out stripping.But existing stripping process but exists that a lot of weak points are as large in occupation area of equipment and energy consumption is very high, particularly outstanding aspect steam mono-consumption especially, cause ammonia nitrogen waste water processing cost very high, cause enterprise to be reluctant or unablely bear its processing costs.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of floor space little, structural manufacturing process is simple, realizes the energy-efficient deamination system of embedded double-current matter of resource recycling.
For realizing the object of the invention, provide following technical scheme: the energy-efficient deamination system of a kind of embedded double-current matter, comprise plate-type heat exchanger, interior stream tower, ammonium sulfate tank and dilute sulphuric acid tank, described interior stream tower comprises tower body, in tower body, be arranged at intervals with S type composite screen hole column plate and flow plug, in tower body, be divided into waste steam deamination section and ammonium sulfate circulation absorber portion, the nearly bottom of described waste steam deamination section is separately provided with raw steam and enters pipeline, ammonia nitrogen waste water pipeline connects waste steam deamination section middle part, interior Liu Ta bottom tower reactor is provided with deamination waste pipe, described ammonia nitrogen waste water pipeline, deamination waste pipe all passes through plate-type heat exchanger, described ammonia nitrogen waste water pipeline, deamination waste pipe is provided with lift pump, described ammonium sulfate tank, dilute sulphuric acid tank all arranges circulating line and connects interior stream tower, circulating line liquid-inlet pipe is all arranged at ammonium sulfate circulation absorber portion, on described circulating line, be provided with recycle pump.
As preferably, ammonium sulfate circulation absorber portion top is provided with supercharging circulation pipe road and connects the nearly bottom of waste steam deamination section, and described supercharging circulation pipe road is provided with booster fan.
As preferably, dilute sulphuric acid tank circulating line liquid-inlet pipe is separately provided with pipeline and connects ammonium sulfate tank.
Below introduce principle of work of the present invention: first, by waste water lifting pump by ammonia nitrogen waste water after plate-type heat exchanger heat exchange, enter Nei Liuta waste steam deamination section after making ammonia nitrogen waste water be preheated to design temperature; Secondly, waste water enters behind tower inside, pass through the S type composite screen hole column plate of the patented technology of " a kind of S type high-efficiency guide composite screen hole column plate " from top to bottom, by the live steam and the cyclic steam counter current contact that rise at the bottom of tower, carry out mass exchange, ammonia in waste water enters gas phase by liquid phase, by high efficiency separation out.Waste water after deamination goes out water pump by tower reactor and discharges after the former ammonia nitrogen waste water heat exchange of plate-type heat exchanger and lift pump; The ammonia steam that contains of waste steam deamination section passes through spiral board ammonium sulfate circulation absorber portion, the patented technology column plate that simultaneously passes through " a kind of S type high-efficiency guide composite screen hole column plate " is first absorbed by acid ammonium sulfate circulation, then a small amount of residual ammonia steam that contains is absorbed by dilute sulphuric acid circulation, and the steam after purification is sent the recycle of Nei Liuta tower reactor back to by plug-flow booster fan.The acid ammonium sulfate circulation absorbing ammonia of ammonium sulfate circulation absorber portion produces ammoniumsulphate soln, by ammonium sulfate recycle pump, the ammoniumsulphate soln part in ammonium sulfate tank is proceeded to circulation and absorbs, another part shunting output; Dilute sulphuric acid circulation absorbs the ammonia in residual steam, by dilute sulphuric acid recycle pump, the dilute sulphuric acid part in dilute sulphuric acid tank is guaranteed to the cleanliness factor of steam, another part pass through pH in ammonium sulfate circulation accurately to control a minute inflow ammonium sulfate tank.In above-mentioned processing method, energy-optimised and implement on-the-spot industrial actual demand of space and carry out reasonable disposition according to entire system, and according to how many definite steam consumption quantities of ammonia-nitrogen content in actual treatment ammonia nitrogen waste water, the equipment column plate number of plies height size, dilute sulphuric acid and ammonium sulfate internal circulating load etc.
Beneficial effect of the present invention: the present invention is reduced to minimum limit by processing ammonia nitrogen waste water steam consumption, the actual steam consuming is only for supplementing a small amount of heat of taking out of in the heat exchange of deamination water and ammonium sulfate circulation, and system radiating loss.In addition, this technique is guaranteeing under the prerequisite of ammonia nitrogen removal frank, utilizes the heat of the chemical reaction release of ammonia and sulfuric acid, by being used after plug-flow supercharging, reaches the object of saving live steam.Conventional ammonia absorption unit is carried out to complementary design simultaneously, accurately control acid and add mode and dosage, rational deployment gas-to-liquid contact mass transfer parts, save the low problem of absorber portion device processes ability.Finally " a kind of S type high-efficiency guide composite screen hole column plate " patented technology is combined with the art breading technology of a vapor tower plug-flow supercharging and embedded double-current matter and reaches every section of tower diameter of appropriate design layout and height, solve the problem that occupation area of equipment is large and greatly reduce wastewater treatment expense.
Accompanying drawing explanation
Fig. 1 is the structural representation of system of the present invention.
Embodiment
The energy-efficient deamination system of a kind of embedded double-current matter, comprise plate-type heat exchanger 001, interior stream tower 002, ammonium sulfate tank 003 and dilute sulphuric acid tank 004, described interior stream tower 002 comprises tower body, in tower body, be arranged at intervals with S type composite screen hole column plate 021 and flow plug 022, in tower body, be divided into waste steam deamination section 023 and ammonium sulfate circulation absorber portion 024, the nearly bottom of described waste steam deamination section 023 is separately provided with raw steam and enters pipeline 005, ammonia nitrogen waste water pipeline 006 connects waste steam deamination section 023 middle part, interior Liu Ta bottom tower reactor is provided with deamination waste pipe 007, described ammonia nitrogen waste water pipeline 006, deamination waste pipe 007 is all by plate-type heat exchanger 001, described ammonia nitrogen waste water pipeline 006, deamination waste pipe 007 is provided with lift pump 008, described ammonium sulfate tank 003, dilute sulphuric acid tank 004 all arranges circulating line 009 and connects interior stream tower 002, circulating line 009 liquid-inlet pipe 091 is all arranged at ammonium sulfate circulation absorber portion 024, on described circulating line 009, be provided with recycle pump 092.Ammonium sulfate circulation absorber portion 024 top is provided with supercharging circulation pipe road 010 and connects waste steam deamination section 023 nearly bottom, and described supercharging circulation pipe road 010 is provided with booster fan 011.Dilute sulphuric acid tank 004 circulating line liquid-inlet pipe 091 is separately provided with pipeline 092 and connects ammonium sulfate tank 003.
Embodiment 1
Adopt the present invention to process ammonia nitrogen waste water import ammonia nitrogen concentration 3500mg/L, treatment capacity 5t/h.Adopt nessler reagent colorimetry (GB7479-87) methods analyst, the ammonia nitrogen concentration in processed waste water is 12mg/L.Steam consumption is 35kg/t.
Claims (3)
1. the energy-efficient deamination system of embedded double-current matter, comprise plate-type heat exchanger, interior stream tower, ammonium sulfate tank and dilute sulphuric acid tank, described interior stream tower comprises tower body, in tower body, be arranged at intervals with S type composite screen hole column plate and flow plug, in tower body, be divided into waste steam deamination section and ammonium sulfate circulation absorber portion, the nearly bottom of described waste steam deamination section is separately provided with raw steam and enters pipeline, ammonia nitrogen waste water pipeline connects waste steam deamination section middle part, interior Liu Ta bottom tower reactor is provided with deamination waste pipe, described ammonia nitrogen waste water pipeline, deamination waste pipe all passes through plate-type heat exchanger, described ammonia nitrogen waste water pipeline, deamination waste pipe is provided with lift pump, described ammonium sulfate tank, dilute sulphuric acid tank all arranges circulating line and connects interior stream tower, circulating line liquid-inlet pipe is all arranged at ammonium sulfate circulation absorber portion, on described circulating line, be provided with recycle pump.
2. the energy-efficient deamination system of a kind of embedded double-current matter according to claim 1, is characterized in that ammonium sulfate circulation absorber portion top is provided with supercharging circulation pipe road and connects the nearly bottom of waste steam deamination section, and described supercharging circulation pipe road is provided with booster fan.
3. the energy-efficient deamination system of a kind of embedded double-current matter according to claim 1, is characterized in that dilute sulphuric acid tank circulating line liquid-inlet pipe is separately provided with pipeline and connects ammonium sulfate tank.
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| CN201410241518.4A CN104085936B (en) | 2014-06-03 | 2014-06-03 | The energy-efficient deamination system of a kind of embedded double-current matter |
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| CN201410241518.4A CN104085936B (en) | 2014-06-03 | 2014-06-03 | The energy-efficient deamination system of a kind of embedded double-current matter |
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| CN104085936B CN104085936B (en) | 2016-05-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282800A (en) * | 2019-06-20 | 2019-09-27 | 四川省兴威钒业有限公司 | Vanadium extracting waste water ammonia nitrogen resource utilization technology |
| US10815132B2 (en) | 2017-04-21 | 2020-10-27 | China Petroleum & Chemical Corporation | Apparatus and method for treating waste water containing ammonium salts |
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| CN102030386A (en) * | 2010-10-15 | 2011-04-27 | 北京化工大学 | Efficient energy-saving coupling stripping deamination equipment and method |
| CN102190341A (en) * | 2010-03-09 | 2011-09-21 | 天华化工机械及自动化研究设计院 | Stripping ammonia-removing method based on flash evaporation and heat pump technologies |
| JP2012096171A (en) * | 2010-11-02 | 2012-05-24 | Mitsubishi Kakoki Kaisha Ltd | Apparatus and method for treating wastewater containing ammonia nitrogen |
| CN103752252A (en) * | 2013-12-18 | 2014-04-30 | 江苏华杉环保科技有限公司 | S-shaped high efficiency oriented composite sieve tray |
| CN203866060U (en) * | 2014-06-03 | 2014-10-08 | 江苏华杉环保科技有限公司 | Embedded type double-fluid high-efficiency and energy-saving deamination system |
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2014
- 2014-06-03 CN CN201410241518.4A patent/CN104085936B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190341A (en) * | 2010-03-09 | 2011-09-21 | 天华化工机械及自动化研究设计院 | Stripping ammonia-removing method based on flash evaporation and heat pump technologies |
| CN102030386A (en) * | 2010-10-15 | 2011-04-27 | 北京化工大学 | Efficient energy-saving coupling stripping deamination equipment and method |
| JP2012096171A (en) * | 2010-11-02 | 2012-05-24 | Mitsubishi Kakoki Kaisha Ltd | Apparatus and method for treating wastewater containing ammonia nitrogen |
| CN103752252A (en) * | 2013-12-18 | 2014-04-30 | 江苏华杉环保科技有限公司 | S-shaped high efficiency oriented composite sieve tray |
| CN203866060U (en) * | 2014-06-03 | 2014-10-08 | 江苏华杉环保科技有限公司 | Embedded type double-fluid high-efficiency and energy-saving deamination system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10815132B2 (en) | 2017-04-21 | 2020-10-27 | China Petroleum & Chemical Corporation | Apparatus and method for treating waste water containing ammonium salts |
| US11572289B2 (en) | 2017-04-21 | 2023-02-07 | China Petroleum & Chemical Corporation | Apparatus and method for treating waste water containing ammonium salts |
| CN110282800A (en) * | 2019-06-20 | 2019-09-27 | 四川省兴威钒业有限公司 | Vanadium extracting waste water ammonia nitrogen resource utilization technology |
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| CN104085936B (en) | 2016-05-11 |
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