CN108585331A - The reclaimer of ammonia in a kind of composite waste of multiphase containing ammonia - Google Patents
The reclaimer of ammonia in a kind of composite waste of multiphase containing ammonia Download PDFInfo
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- CN108585331A CN108585331A CN201810396722.1A CN201810396722A CN108585331A CN 108585331 A CN108585331 A CN 108585331A CN 201810396722 A CN201810396722 A CN 201810396722A CN 108585331 A CN108585331 A CN 108585331A
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- ammonia
- composite waste
- steam
- tower
- multiphase
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1418—Recovery of products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
Abstract
The present invention relates to a kind of reclaimers of ammonia in composite waste of multiphase containing ammonia, it is characterised in that：Including containing ammonia multiphase composite waste pre-processing device, deamination equipment and wet scrubbing apparatus are stripped.The function of stripping deamination equipment is that dense ammonia is stripped off using steam in the ammonia contained in ammonia multiphase composite waste in stripper, dense ammonia discharge stripper enters wet scrubbing apparatus, it is concentrated ammonia liquor to absorb ammonia with cold water high efficiency in wet scrubbing apparatus, makees resource recycling.Purified gas is by absorption tower outlet drain, and the waste water after deamination is lowered to tower bottom sink, and the waste water of other ingredients is discharged into next treatment process.This equipment removes the ammonia in ammonia-containing water by way of steam stripping, to reduce the discharge of dangerous waste.The equipment high efficiency of the present invention is energy saving, has economic value high, highly practical, build simple, at low cost, the advantages that applicability is wider, and can highly effective and safe ammonia is recycled, realize resource reutilization.
Description
Technical field
The present invention relates to the reclaimers of ammonia in sewage treatment field more particularly to a kind of multiphase containing ammonia composite waste.
Background technology
With the fast development of the industries such as China's chemical industry, metallurgy, petrochemical industry, pharmacy, food, the problem of the pollution of ammonia-containing water
Become increasingly severe.The discharge of a large amount of ammonia-containing waters can lead to body eutrophication, cause water pollution, seriously endangered people
Health, affect the normal life of people.Wave of the random discharge of a large amount of ammonia-containing waters also for resource simultaneously
Take.The pollutant of ammonia-containing water is mainly the ammonia of free state and with ammonia existing for ammonium salts.Common processing method has：Oxygen
Change method, Activated Zeolite Adsorption, pressurization ammonia still process method, biochemical process and WATER-WASHING METHOD etc..These methods are for the processing of low concentration ammonia-containing water
It is with obvious effects, and handle strong ammonia wastewater and then there are problems that, as ammonia removal rate is relatively low, complex process, cost compared with
It is high.
Steam stripping method is the hot spot of Recent study.This method is to make strong ammonia wastewater with steam in stripper
Counter current contacting.Using the principle to balance each other, the ammonia in liquid phase is made to be moved in the smaller gas phase of equilibrium partial pressure, it is de- to reach
Except the purpose of ammonia in waste water.The equipment that vaporizing extract process mainly uses is stripper.Enter after wastewater to reach standard after processed next
Treatment process, and dense Ammonia recovery typically installs acid bath or condensing unit additional to complete.It is to pass through wherein to install acid bath additional
The mode of acid-base neutralization realizes the recycling of ammonia.The process needs to be passed through the acid solutions such as sulfuric acid, to the complexity that brings of operation and
Risk；And installing condensing unit additional or installing additional often has cooling with heat exchanger associated with other devices, these condensation methods
Speed is not fast enough, and the efficiency of cooling is more low, the problem of recovery process complexity.In addition vaporizing extract process is asked there is also energy consumption is larger etc.
Topic.Therefore it provides in a kind of efficient quick, energy-saving safe, the composite waste of multiphase containing ammonia highly practical, at low cost, applicability is wide
The reclaimer of ammonia is problem to be solved by this invention.
Invention content
The present invention overcomes the deficiencies in the prior art, provide a kind of efficient quick, energy-saving safe, it is highly practical, at low cost,
The reclaimer of ammonia is problem to be solved by this invention in the wide composite waste of multiphase containing ammonia of applicability.
In order to achieve the above objectives, the technical solution adopted by the present invention is：It includes the composite waste of multiphase containing ammonia to provide a kind of
Pre-processing device strips deamination equipment and wet scrubbing apparatus；
The composite waste of multiphase containing the ammonia pre-processing device includes pH value regulating reservoir and heating system, and the two passes through pipeline
It is connected；
The stripping deamination equipment includes steam stripping tower, vapor injection system and discharge of wastewater control system；It is described
Steam stripping top of tower is provided with dense ammonia outlet, and the composite waste entrance of multiphase containing ammonia and spray are provided with below dense ammonia outlet
Leaching system；The steam stripping tower bottom is provided with low concentrated ammonia liquor outlet, and steam inlet is provided with above the outlet of low concentrated ammonia liquor；
The vapor injection system is connected by pipeline with steam inlet；The discharge of wastewater control system passes through pipeline and low dense ammonia
Water out is connected；It is provided with mass-transfer filler between the spray system and steam inlet；
The wet scrubbing apparatus includes wet scrubber tower, chilled(cooling) water supply (CWS) system and ammonium hydroxide emission control systems；Institute
It states wet scrubbing top of tower and is provided with low content ammonia outlet, cooling water inlet and spray are provided with below low content ammonia outlet
Leaching system；The wet scrubbing tower bottom is provided with high concentrated ammonia liquor outlet, and being provided with dense ammonia above the outlet of high concentrated ammonia liquor enters
Mouthful；The chilled(cooling) water supply (CWS) system is connected by pipeline with cooling water inlet；The ammonium hydroxide emission control systems pass through pipeline
It is connected with the outlet of high concentrated ammonia liquor；It is provided with mass-transfer filler between the spray system and dense ammonia entrance；
The composite waste pre-processing device of multiphase containing ammonia is connected by pipeline with the composite waste of multiphase containing the ammonia entrance
It connects；The dense ammonia outlet of the steam stripping tower is connected with the dense ammonia entrance of the wet scrubber tower by pipeline.
As a preferred embodiment, the filler is structured packing, and filler unit is cylindrical frame structure；In the filler
At the top of unit, bottom and it is internally provided with several hollow out lamellas；The hollow out lamella be arranged it is several extend to filler unit it is thin
Columnar protrusions.
As a kind of more preferable scheme, the filler unit is regular quadrangle cylindrical frame structure；Filler unit max-flow
Speed is 5m/s.
As a kind of more preferable scheme, the material of the filler unit is Kynoar.
As a preferred embodiment, the top of the steam stripping tower spray system and wet scrubber tower spray system is all provided with
It is equipped with and removes water mist device.
As a kind of more preferable scheme, liquid uniform distributor is respectively set on the filler.
As a kind of more preferable scheme, the steam stripping tower and wet scrubbing top of tower are both provided with pressure gauge and temperature
Spend table.The steam stripping tower and wet scrubber tower lower part are provided with liquid level gauge；In the low concentrated ammonia liquor of the steam stripping tower
The high concentrated ammonia liquor of outlet and wet scrubber tower outlet top is respectively arranged with liquid level gauge.
As a kind of more preferable scheme, the vapor injection system includes flowmeter, thermometer and steam jet ejector, institute
Flowmeter, thermometer are stated, is arranged on the pipeline that steam jet ejector is connect with steam stripping tower.
As a kind of more preferable scheme, thermometer is arranged in the pipeline between the pH value regulating reservoir and heating system；Institute
It states the pipeline between heating system and steam stripping tower and is provided with thermometer, flowmeter and pH meter.
As a kind of more preferable scheme, the heating system is EH-01 electric heaters.
The beneficial technical effect of the present invention lies in：
(1) a kind of reclaimer of ammonia in the composite waste of multiphase containing ammonia is provided, the equipment is by way of steam stripping
Remove the ammonia in ammonia-containing water.Relative to traditional equipment, this equipment ammonia removal rate is high, to reduce the discharge of dangerous waste.
(2) compared to traditional equipment, this equipment has thin columnar protrusions, high surface area, high open volume, most using internal
The structured packing that big flow velocity is 5m/s, to substantially reduce pressure drop, increase mass-transfer efficiency, to improve steam stripped effect
Rate reduces the tower diameter of stripper, reduces the consumption of the energy, saves the energy and cost.
(3) this equipment is recycled using the dense ammonia that wet scrubber tower generates stripping.Wet scrubber tower and stripper
Structure is similar with principle, is passed through in the middle part of tower by the dense ammonia for generating stripping and is passed through cooling water from tower top, made
They inversely meet strips again.Ammonia in dense ammonia is transferred to formation ammonium hydroxide in cooling water according to the principle that balances each other and is returned
It receives and utilizes.Compared to current existing cooling means, since ammonia contacts with the help of filler with water more abundant, mass transfer is more
Quickly, therefore this method can be realized the cooling of ammonia and recycles in a short time.And this method need not introduce acid solution, more pacify
Entirely, practicability is stronger, applicability is wider.The ammonia of recycling can be widely applied to industrial and mineral industry, and such as alternatively property catalysis reduction is de-
The denitrfying agent of nitre (SCR) technique, to realize the recycling of resource.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of the preferred embodiment of the present invention.
Fig. 2 is the front view of filler of the present invention.
In figure：1 is the composite waste pre-processing device of multiphase containing ammonia, 11 is pH value regulating reservoir, 12 is heating system, 151 is
Thermometer between pH value regulating reservoir and heating system, 152 be thermometer between heating system and steam stripping tower, 153 be
Flowmeter between heating system and steam stripping tower, 154 be pH meter between heating system and steam stripping tower, 2 be stripping
Deamination equipment, 21 be steam stripping tower, 211 for the composite waste of multiphase containing ammonia entrance, 212 be steam stripping tower spray system,
213 be dense ammonia outlet, 214 be steam inlet, 215 be the outlet of low concentrated ammonia liquor, 216 be the filler of steam stripping tower, 217 be steaming
The liquid uniform distributor of vapour stripper, 218 are steam stripping tower except water mist device, 22 are vapor injection system, 221 are steam
Injector, 23 be discharge of wastewater control system, 251 be the liquid level gauge of steam stripping tower lower part, 252 be steam stripping tower pressure
Table, 253 be the thermometer of steam stripping tower, 254 be flowmeter between steam jet ejector and steam stripping tower, 255 be steam
Thermometer between injector and steam stripping tower, 3 be wet scrubbing apparatus, 31 be wet scrubber tower, 311 be cooling water inlet,
312 it is the spray system of wet scrubber tower, 313 be low content ammonia outlet, 314 be dense ammonia entrance, 315 is that high concentrated ammonia liquor goes out
Mouthful, 316 be the filler of wet scrubber tower, 317 be the liquid uniform distributor of wet scrubber tower, 318 be removing for wet scrubber tower
Water mist device, 32 be chilled(cooling) water supply (CWS) system, 33 be ammonium hydroxide emission control systems, 351 be wet scrubber tower lower part liquid level gauge,
352 it is the pressure gauge of wet scrubber tower, 353 be the thermometer of wet scrubber tower, 40 be filler unit, 41 is hollow out lamella, 42
For thin columnar protrusions.
Specific implementation mode
Presently in connection with drawings and examples, the present invention is described in further detail, these attached drawings are simplified signal
Figure, the basic structure of the invention will be illustrated schematically only, therefore it only shows the composition relevant to the invention.
As shown in Figure 1, in a kind of composite waste of multiphase containing ammonia ammonia reclaimer, including before containing ammonia multiphase composite waste
Manage equipment 1, stripping deamination equipment 2 and wet scrubbing apparatus 3.
Ammonia-containing water pre-processing device 1 includes pH value regulating reservoir 11 and heating system 12, and the two is connected by pipeline,
Thermometer 151 is set on pipeline.Heating system is EH-01 electric heaters.
It includes steam stripping tower 21, vapor injection system 22 and discharge of wastewater control system 23 to strip deamination equipment 2；It steams
21 top of vapour stripper is provided with dense ammonia outlet 213, and below dense ammonia outlet 213, the top of steam stripping tower 21 is arranged
There are the composite waste of multiphase containing ammonia entrance 211 and spray system 212.21 bottom of steam stripping tower is provided with low concentrated ammonia liquor outlet 215,
Above low concentrated ammonia liquor outlet 215, the middle part of steam stripping tower 21 is provided with steam inlet 214.Vapor injection system 22 passes through
Pipeline is connected with steam inlet 214, and flowmeter 254, thermometer 255 are provided on pipeline；Discharge of wastewater control system 23 is logical
Piping is connected with low concentrated ammonia liquor outlet 215.In addition pressure gauge 252 and thermometer 253 are set in 21 tower top of steam stripping tower,
In tower lower part, liquid level gauge 251 is set.The setting of these instrument can preferably control entire process.In steam stripping tower 21 also
It is provided with mass-transfer filler 216, is set between spray system 212 and steam inlet 214.Filler 216 is that material is polyvinylidene fluoride
Alkene, maximum flow rate are the structured packing of 5m/s.Filler unit 40 is regular quadrangle cylindrical frame structure.Its top, bottom difference
It is provided with hollow out lamella 41, is additionally provided with two layers of hollow out lamella 41 inside it.Hollow out lamella 41 at 40 top of filler unit
Lower surface several thin columnar protrusions 42 are set, in the upper surface of the hollow out lamella 41 of 40 bottom of filler unit, several buttress shafts are set
Several thin columnar protrusions 42 are arranged in the upper and lower surface of shape protrusion 42, the hollow out lamella 41 inside filler unit 40.It should
Design increases the contact area of gas-liquid, and filler 216 is made to have high surface area and high open volume, substantially reduce pressure drop,
Mass-transfer efficiency is increased, to improve steam stripped efficiency, reduces the tower diameter of stripper, reduces the consumption of the energy, is saved
The energy and cost.In addition the cylindrical structure of regular quadrangle is more conducive to piling up for filler, and filler not will produce after making equipment operation
The phenomenon that mutual intussusception, will not detract efficiency or generate short stream.The selection of vinylidene material makes filler more high temperature resistant simultaneously
And chemical substance.Liquid uniform distributor 217 is set above filler 216, is distributed when to make ammonia-containing water enter filler 216
More uniformly, keep stripping more abundant；It is provided with except water mist device 218 on 212 top of steam stripping tower spray system, reduces mist
The generation of gas.
Wet scrubbing apparatus 3 includes wet scrubber tower 31, chilled(cooling) water supply (CWS) system 32 and ammonium hydroxide emission control systems 33；
The structure and steam stripping tower 21 of wet scrubber tower 31 are similar.31 top of wet scrubber tower is provided with low content ammonia outlet 313；
Below low content ammonia outlet 313,31 top of wet scrubber tower is provided with cooling water inlet 311 and spray system 312.Wet type
31 bottom of scrubbing tower is provided with high concentrated ammonia liquor outlet 315；Above high concentrated ammonia liquor outlet 315, the middle part of wet scrubber tower 31 is set
It is equipped with dense ammonia entrance 314.Chilled(cooling) water supply (CWS) system 32 is connected by pipeline with cooling water inlet 311, cooling water supply system
32 main bodys are heat exchanger, and wet scrubber tower 31 is sent into after cooling down deionized water by water cycle；Ammonium hydroxide emission control systems 33
It is connected with high concentrated ammonia liquor outlet 315 by pipeline；In addition pressure gauge 352 and thermometer are set in 31 tower top of steam stripping tower
353, tower lower part is provided with liquid level gauge 351.The setting of these instrument can preferably control entire process.In wet scrubber tower
It is additionally provided with mass-transfer filler 316 in 31, is set to the filler that between spray system and dense ammonia entrance and steam stripping tower is arranged
216 structures having the same have and improve steam stripping efficiency, reduce energy consumption, save the effect of the energy and cost.With steam vapour
Stripper 21 is similar, and wet scrubber tower 31 is arranged above filler 316 makes the more uniform liquid of ammonia-containing water distribution be uniformly distributed
Device 317；It is provided with except water mist device 318 on 312 top of steam stripping tower spray system.
Ammonia-containing water pre-processing device 1 is connected by pipeline with the composite waste of multiphase containing ammonia entrance 211 simultaneously, on pipeline
It is provided with thermometer 152, flowmeter 153 and pH meter 154, effect is also for more preferably controlling entire technical process；Steam vapour
The dense ammonia outlet 213 of stripper is connected with the dense ammonia entrance 314 of wet scrubber tower by pipeline.
It is used to illustrate the operation principle of the present invention as one example below：
The waste water that 20 DEG C of ammonia content is 150kg/h is passed through pH value regulating reservoir 11, flow velocity 5m3/h.It is adjusted to pH value
Sodium hydroxide solution is added in pond 11, adjusts the pH value of waste water system to 12.0.Use EH-01 electric heaters to pending later
The composite waste of multiphase containing ammonia carries out being heated to 40 DEG C, which is conducive to being smoothed out for stripping process.
It is 12.0 by pH value, the composite waste of multiphase containing ammonia that temperature is 40 DEG C is with 5m3The flow velocity of/h is passed through steam stripping tower
21 tops are moved from top to bottom by spray system 212, while 120 DEG C of steam enter steam vapour by vapor injection system 22
Stripper 21 moves from bottom to top behind middle part, and the two counter current contacting at steam stripping tower packing 216 is stripped, temperature when stripping
Degree is 80 DEG C.Filler 216 is the structured packing that material is Kynoar, maximum flow rate 5m/s, 40 inside setting of filler unit
Several thin columnar protrusions 42.Due to the use of such efficient filler, compared to conventional 100 DEG C or so of stripping temperature, ontology
System only needs 80 DEG C, and the energy is thus greatly saved.By stripping, gas is entered by liquid phase according to the ammonia in the principle waste water that balances each other
Phase generates dense ammonia and low concentrated ammonia liquor.Wherein low concentrated ammonia liquor is discharged by 21 bottom discharge pump of steam stripping tower, and flow velocity is
1.5m3/h.The low concentrated ammonia liquor temperature of discharge is 40 DEG C, and ammonia content is that 14mg/L meets country《Integrated wastewater discharge standard》
(GB8978-1996) regulation primary standard ammonia nitrogen concentration is less than the standard of 15mg/L, the deamination rate of waste water after the present apparatus strips
Reach 99%.Enter next treatment process by purification, ammonia content waste water up to standard.
Another product after stripping：Content is that the dense ammonia of 15% (volume) is discharged from 21 top of steam stripping tower, and flow velocity is
1000m3/h.The process that 31 middle part of wet scrubber tower carries out recycling ammonia is entered by pipeline later, into after wet scrubber tower 31
Dense ammonia moves from bottom to top.After deionized water carries out cooling processing under normal temperature condition by heat exchanger simultaneously, as cooling
Water enters wet scrubber tower 31.Cooling water temperature control is at 5 DEG C, flow velocity 1.35m3/h.Cooling water enters wet scrubber tower 31
It is moved from top to bottom by spray system 312 afterwards.It is anti-that stripping occurs at the filler 316 of wet scrubber tower for dense ammonia and cooling water
It answers.Thin columnar protrusions 42 are internally provided with, the High Efficient Standard Packing 316 that maximum flow rate is 5m/s keeps stripping process more quick high
Effect.By stripping, liquid phase is entered by gas phase according to the ammonia in the dense ammonia of the principle that balances each other, it is only 4.5mg/m to generate ammonia content3's
Low ammonia content purification steam is discharged by wet scrubber tower 31, flow velocity 1000m3/h.Another product is that content is 1500kg/h's
Concentrated ammonia liquor pumps discharge by the highly concentrated ammonia circulation of 31 bottom of wet scrubber tower, and the concentrated ammonia liquor of discharge can be configured to 10% ammonia
Water can be widely applied to industrial and mineral industry, such as the denitrfying agent of alternatively catalytic-reduction denitrified (SCR) technique of property, to realize
The recycling of resource.
Based on the above description of the preferred embodiments of the present invention, through the above description, related personnel completely can be with
Without departing from the scope of the technological thought of the present invention', various changes and amendments are carried out.The technical scope of this invention
It is not limited to the contents of the specification, it is necessary to determine the technical scope according to the scope of the claims.
Claims (10)
1. the reclaimer of ammonia in a kind of composite waste of multiphase containing ammonia, it is characterised in that：Before containing ammonia multiphase composite waste
Manage equipment (1), stripping deamination equipment (2) and wet scrubbing apparatus (3)；
The composite waste of multiphase containing the ammonia pre-processing device (1) includes pH value regulating reservoir (11) and heating system (12), the two
It is connected by pipeline；
The stripping deamination equipment (2) includes steam stripping tower (21), vapor injection system (22) and discharge of wastewater control system
It unites (23)；It is provided with dense ammonia outlet (213) at the top of the steam stripping tower (21), is arranged below dense ammonia outlet (213)
There are the composite waste entrance of multiphase containing ammonia (211) and spray system (212)；Steam stripping tower (21) bottom is provided with low dense ammonia
Water out (215) is provided with steam inlet (214) above low concentrated ammonia liquor outlet (215)；The vapor injection system (22) is logical
Piping is connected with steam inlet (214)；The discharge of wastewater control system (23) is exported by pipeline and low concentrated ammonia liquor
(215) it is connected；Mass-transfer filler (216) is provided between the spray system (212) and steam inlet (214)；
The wet scrubbing apparatus (3) includes wet scrubber tower (31), chilled(cooling) water supply (CWS) system (32) and ammonium hydroxide emission control
System (33)；It is provided with low content ammonia outlet (313) at the top of the wet scrubber tower (31), in low content ammonia outlet
(313) lower section is provided with cooling water inlet (311) and spray system (312)；Wet scrubber tower (31) bottom is provided with height
Concentrated ammonia liquor exports (315), and dense ammonia entrance (314) is provided with above high concentrated ammonia liquor outlet (315)；The chilled(cooling) water supply (CWS) system
System (32) is connected by pipeline with cooling water inlet (311)；The ammonium hydroxide emission control systems (33) by pipeline with it is highly concentrated
Ammonium hydroxide outlet (315) is connected；It is provided with mass-transfer filler between the spray system (312) and dense ammonia entrance (314)
(316)；
The composite waste of multiphase containing the ammonia pre-processing device (1) passes through pipeline and the composite waste of multiphase containing the ammonia entrance (211)
It is connected；The dense ammonia outlet (213) of the steam stripping tower (21) and the dense ammonia entrance of the wet scrubber tower (31)
(314) it is connected by pipeline.
2. the reclaimer of ammonia in the composite waste of multiphase containing ammonia according to claim 1, it is characterised in that：The filler
(216 and 316) are structured packing, and filler unit (40) is cylindrical frame structure；At the top of the filler unit (40), bottom and
It is internally provided with several hollow out lamellas (41)；Several buttress shaft shapes extended to filler unit (40) of hollow out lamella (41) setting
Protrusion (42).
3. the reclaimer of ammonia in the composite waste of multiphase containing ammonia according to claim 2, it is characterised in that：The filler list
First (40) are regular quadrangle cylindrical frame structure；Filler unit maximum flow rate is 5m/s.
4. the reclaimer of ammonia in the composite waste of multiphase containing ammonia according to claim 3, it is characterised in that：The filler list
The material of first (40) is Kynoar.
5. according to the reclaimer of ammonia in any composite wastes of multiphase containing ammonia of claim 1-4, it is characterised in that：It is described
The top of steam stripping tower spray system (212) and wet scrubber tower spray system (312) is respectively arranged with except water mist device (218
With 318).
6. the reclaimer of ammonia in the composite waste of multiphase containing ammonia according to claim 5, it is characterised in that：The filler
Liquid uniform distributor (217 and 317) is respectively set on (216 and 316).
7. the reclaimer of ammonia in the composite waste of multiphase containing ammonia according to claim 6, it is characterised in that：The steam vapour
It is both provided with pressure gauge (252 and 352) and thermometer (253 and 353) at the top of stripper (21) and wet scrubber tower (31)；Institute
It states and divides above the low concentrated ammonia liquor outlet (215) of steam stripping tower (21) and the high concentrated ammonia liquor outlet (315) of wet scrubber tower (31)
It is not provided with liquid level gauge (251 and 351).
8. the reclaimer of ammonia in the composite waste of multiphase containing ammonia according to claim 7, it is characterised in that：The steam spray
It includes flowmeter (254), thermometer (255) and steam jet ejector (221) to penetrate system (22)；The flowmeter (254), temperature
(255) are counted to be arranged on the pipeline that steam jet ejector (221) is connect with steam stripping tower (21).
9. the reclaimer of ammonia in the composite waste of multiphase containing ammonia according to claim 8, it is characterised in that：The pH value tune
Save the pipeline setting thermometer (151) between pond (11) and heating system (12)；The heating system (12) and steam stripping
Pipeline between tower (21) is provided with thermometer (152), flowmeter (153) and pH meter (154).
10. the reclaimer of ammonia in the composite waste of multiphase containing ammonia according to claim 9, it is characterised in that：The heating
System (12) is EH-01 electric heaters.
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Application publication date: 20180928 |