CN105854602A - Combined device for washing tail gas and treating waste water of low-speed diesel engine of ship - Google Patents

Combined device for washing tail gas and treating waste water of low-speed diesel engine of ship Download PDF

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Publication number
CN105854602A
CN105854602A CN201610423634.7A CN201610423634A CN105854602A CN 105854602 A CN105854602 A CN 105854602A CN 201610423634 A CN201610423634 A CN 201610423634A CN 105854602 A CN105854602 A CN 105854602A
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China
Prior art keywords
waste water
connects
gas
hypergravity
tank
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CN201610423634.7A
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Chinese (zh)
Inventor
周松
周金喜
朱元清
王占广
高瑞锋
刘佃涛
冯永明
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Harbin Engineering University
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Harbin Engineering University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/14—Packed scrubbers
    • 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
    • B01D53/1456—Removing acid components
    • B01D53/1481—Removing sulfur dioxide or sulfur trioxide
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • 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
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B01D2251/104—Ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/818—Employing electrical discharges or the generation of a plasma
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • 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
    • C02F2101/101—Sulfur compounds
    • 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
    • C02F2101/163—Nitrates
    • 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
    • C02F2101/20—Heavy metals or heavy metal compounds
    • 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
    • C02F2101/30—Organic compounds
    • C02F2101/32—Hydrocarbons, e.g. oil
    • C02F2101/327—Polyaromatic Hydrocarbons [PAH's]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

The invention aims at providing a combined device for washing tail gas and treating waste water of a low-speed diesel engine of a ship. The combined device comprises a supergravity tail gas washing system and a waste water treatment system, a plasma catalytic reactor oxidizes nitric oxide, and the purpose of absorbing waste gas pollutants simultaneously is achieved. A supergravity washing tower generates a supergravity field with the intensity from hundreds of to thousands of times gravitational acceleration through high-speed rotating filler, the flow velocity of a liquid film is increased by ten times in the gravity field, the liquid film is in countercurrent or cocurent or cross current contact with gas, micromixing between a gas phase and a liquid phase is greatly reinforced, mass transfer between gas and liquid is greatly intensified, and the combined device has the advantages of being small in equipment size, small in gas phase pressure drop, convenient to mount and maintain and the like. Cooperation between the classic water treatment technology and the reverse osmosis membrane treatment technology is adopted for a waste water treatment system, and the emission stands specified in IMO related to polycyclic aromatic hydrocarbon in waste water in the ship, the turbidity and pollutants such as nitrate and heavy metal are reached.

Description

A kind of marine low speed diesel engine vent gas washing and waste water process set composite
Technical field
The present invention relates at a kind of diesel engine exhaust gas treatment device, specifically marine diesel tail gas Reason device.
Background technology
Recently as the fast development of shipping industry, the NOx, SO of its power set discharge2Contain with particulate matter Amount increases further, and the control to exhaust emissions requires harsher.Main and auxiliary machine peculiar to vessel, fuel oil pot The NOx, SO that stove and incinerator are discharged in air2With particulate matter, the mankind and environment can be caused the biggest danger Evil, the Chinese government has formulated to answering regulation also for the emission behaviour of ship tail gas pollutant, and the row of determining Put the core port region in control zone.
The optimum measure usually wet method being used for removing marine low speed tail gas sulphur oxide and nitrogen oxides is washed Washing technology and SCR technology, will reach to remove the purpose of sulfur and nitrogen oxides simultaneously, being bound to will be by two The technology of kind combines, but the combination of two kinds of technology means the combination of two covering devices, can produce volume mistake Big and complicated operational issue.Wet scrubbing simultaneous SO_2 and NO removal technology is best suited for boats and ships, has body Long-pending little, behaviour does simple feature, and the advantage using hypergravity scrubbing tower to save boats and ships space becomes apparent from.Wash Washing denitration and can increase the nitrate content in waste water, IMO rules and regulations washings processing system should prevent nitric acid The discharge of salt exceedes the nitrate content in scavenging corresponding to 12%NOx, thus processes skill at tradition water The water treatment measures developing efficient removal nitrate on the basis of art are the most necessary.
In view of day by day closing on of Abgasgesetz, the efficient washing tail gas of development of new and waste water process set composite, Particularly can be supporting with spot ship power set, the processing equipment that shipowner more can accept, is to solve me State's current and future foreign-going ship frees in and out each marine site, the world, and promoting China's shipping cause to go to the world can not The important measures lacked.
In prior art, main ship tail gas washing and wastewater processing technology mainly have:
Patent " a kind of marine internal combustion engine tail gas desulfurization method of denitration (201410756640.5) ", by washing Technology combines corona catalysis technique, and its flow process is that tail gas is introduced into water-cooling tower, through desulfurizing tower desulfurization, takes off Tail gas after sulfur, after plasma discharge catalysis oxidation, enters denitrating tower, it is achieved simultaneous SO_2 and NO removal.The party The power consumption of case plasma discharge is big, and reaction vessel is more, and volume is relatively big, the nitric acid in washes after reaction Salt is difficult to remove.
Patent " a kind of New type wet marine exhaust integrated conduct method and device (201510175989.4) ", It is by tail gas being sequentially passed through sea water, strong oxidizing property, strongly acidic solution and strong reducing property, strong alkali solution Process, or with crossing pre-oxidation device, then removed by wash mill, obtain clean tail gas and waste liquid, Waste liquid is arranged after diluting with sea water and is arrived sea, and the various Strong oxdiative reducing agents etc. mentioned in scheme are relatively costly, Oxidation unit power consumption is big, and economy is not suitable for boats and ships, and the mode of disposing waste liquid is sea water dilution, it is impossible to Fundamentally solve pollution problem.
Patent " a kind of processing means (201310259855.1) for boats and ships washing desulphurization system waste liquid ", It is that including oil-water separation, chemical agent, aeration, flotation etc., technique is gone by utilizing tradition water technology Except the oil slick in washes, oil emulsion, granule and heavy metal hydroxide precipitation etc., but can not Remove the nitrate in cleaning mixture.
Summary of the invention
It is an object of the invention to provide NOx, the SO that can reach the most efficient removing2Mesh with particulate matter , and the pollutant such as polycyclic aromatic hydrocarbon in washes, sulfate, nitrate, heavy metal can be removed, meet A kind of marine low speed diesel engine vent gas washing of IMO vessel Waste discharge standard and waste water process set composite.
The object of the present invention is achieved like this:
One marine low speed diesel engine vent gas of the present invention washing and waste water process set composite, it is characterized in that: bag Include hypergravity vent gas washing system, Waste Water Treatment；
Described hypergravity vent gas washing system includes catalyst oxidation reactor, hypergravity scrubbing tower, baffle-box； Described Waste Water Treatment includes that Aeration tank, dissolving, flotation tank, active carbon filter, reverse osmosis membrane are anti- Answer device, after-filter, strong brine storage box, clean water storage box；The waste gas that electromotor is discharged is passed through catalysis Oxidation reactor, catalyst oxidation reactor connects hypergravity scrubbing tower, hypergravity scrubbing tower by gas exhaust piping Lower section arranges cleaning mixture outlet, and cleaning mixture outlet connects baffle-box, and on the one hand baffle-box is provided by first The circulation line of circulating pump connects hypergravity scrubbing tower, on the other hand connects Aeration tank by distribution pipeline, exposes Flotation tank, active carbon filter, reverse osmosis membrane reactor, after-filter, clean water it is sequentially connected with behind gas pond Storage box, water processes alkali adding tank and dosing tank connects waste water transfer pipeline, and waste water transfer pipeline connects flotation tank, Pressurized tank is respectively communicated with Aeration tank, dissolving, reverse osmosis membrane reactor by air delivering pipeline, and dissolving passes through Water transfer pipeline connection flotation tank after process, dissolving connects flotation tank, air supporting by dissolved air water transfer pipeline Pond connects slag case, and strong brine storage box connects reverse osmosis membrane reactor.
The present invention can also include:
1, described hypergravity scrubbing tower includes housing, demister, packing layer, motor, liquid distribution trough, shell The upper end of body arranges offgas outlet, and cleaning mixture outlet is arranged on the lower end of housing, demister, packing layer, liquid Body distributor is arranged in housing, and demister is positioned at above packing layer and liquid distribution trough, during packing layer is Hollow structure, liquid distribution trough is positioned in the hollow space of packing layer, and motor is positioned at below housing, and motor passes through Rotor bonding pad layer, circulation line connects liquid distribution trough.
2, described catalyst oxidation reactor includes ozone oxidation reaction device, catalyst oxidator, plasma oxygen Change device or plasma catalytic oxidator.
Present invention have an advantage that and the invention provides a kind of nitrogen oxidation of removing the most simultaneously that can be used for boats and ships The system of thing, oxysulfide and particulate matter, is particularly applicable to use the tail of high-sulfur heavy oil boats and ships low-speed machine Gas washing and waste water process set composite.Within the system, catalyst oxidation reactor is positioned at electromotor and overweight Between power scrubbing tower, it is simple to the oxidation of nitrogen oxides, reach the purpose that exhaust emission absorbs simultaneously.Overweight Power scrubbing tower utilizes the filler of high speed rotating to produce the super gravity field of hundreds to thousands times acceleration of gravity, makes Liquid film velocity ratio improves 10 times in gravitational field, carries out adverse current stream with gas or cross-flow contacts, the most by force Change the microcosmic mixing between gas-liquid two-phase, greatly enhanced the mass transfer between gas-liquid, had that equipment volume is little, gas The features such as phase pressure drop is little, convenient for installation and maintenance.Waste Water Treatment uses classical water technology and reverse osmosis The cooperation of membrane technology, reach polycyclic aromatic hydrocarbon, turbidity and nitrate in the vessel Waste that IMO specifies, The discharge standard of the pollutant such as heavy metal.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Illustrate below in conjunction with the accompanying drawings and the present invention be described in more detail:
In conjunction with Fig. 1, marine low speed diesel engine vent gas of the present invention washing and waste water process set composite and specifically include that Mainly include hypergravity vent gas washing system and Waste Water Treatment.Hypergravity vent gas washing system specifically includes that Hypergravity scrubbing tower 3, catalyst oxidation reactor 33, circulating pump 11, baffle-box 10；Waste Water Treatment bag Include: Aeration tank 12, dissolving 17, flotation tank 16, active carbon filter 20, reverse osmosis membrane reactor 21, Accurate filter 22, strong brine storage box 25, clean water storage box 26；Wherein hypergravity scrubbing tower 3 wraps Include: packing layer 4, demister 6, liquid distribution trough 5, motor 7.The waste gas that electromotor 1 is discharged is by row Air pipe 2, is connected with hypergravity scrubbing tower 3 through catalyst oxidation reactor 33, and hypergravity scrubbing tower 3 includes Packing layer 4, demister 6, liquid distribution trough 5, motor 7, motor 7 is by rotor 8 and packing layer 4 phase Even.Baffle-box 10, by circulation line 13, is connected with liquid distribution trough 5 through circulating pump 11, and cleaning mixture goes out Mouth 9 is connected with baffle-box 10 by pipeline.Baffle-box 10 is connected with Aeration tank 12 by distribution pipeline 14, Flotation tank 16, active carbon filter 20, reverse osmosis membrane reactor 21, essence it is connected with in turn after Aeration tank 12 Close filter 22 and clean water storage box 26.Water processes alkali adding tank 29 and dosing tank 30, through delivery pump 32 It is connected with waste water transfer pipeline 34 with pump 31.Pressurized tank 27 by air delivering pipeline 35 respectively with Aeration tank 12, Dissolving 17 is connected with reverse osmosis membrane reactor 21, and dissolving 17 is respectively by water transfer pipeline after processing 36 are connected with flotation tank 16 with pump 38 through delivery pump 18 with dissolved air water transfer pipeline 37.Flotation tank 16 He Active carbon filter 20 connecting line has delivery pump 19.Strong brine storage box 25 is by pipeline 24 and reverse osmosis Permeable membrane reactor 21 is connected.
Catalyst oxidation reactor 33, can be ozone oxidation, catalyst oxidation, plasma oxidation and etc. from Muonic catalysis aoxidizes, and introduces with plasma catalytic oxidation technology in this patent, and it is positioned at electromotor 1 and hypergravity Between scrubbing tower 3, inside includes electrode, catalyst and power supply.Major function is in catalysis oxidized tail gas Nitrogen oxides, is the preparatory stage of wet absorption.
Hypergravity scrubbing tower 3, main body is scrubbing tower, is furnished with motor 7, by the company of rotor 8 with packing layer 4 Connect, drive packing layer to rotate, utilize the filler of high speed rotating to produce super gravity field, it is achieved between strengthening gas-liquid Mass transfer.
Waste Water Treatment, comprise classics water technology and reverse osmosis membrane processing technology, first pass through through After allusion quotation water technology includes that waste water is processed by aeration, air supporting and activated carbon filtration, then by reverse osmosis membrane Reative cell carries out concentration to sulfate, Nitrates and the heavy metal substance in water after processing.
In conjunction with Fig. 1, washing tail gas function is achieved in that tail gas that electromotor 1 discharges is through exhaustor 2 Entering catalyst oxidation reactor 33, the tail gas after catalysis oxidation enters hypergravity scrubbing tower 3 and washs, The liquid distribution trough 5 at cleaning mixture center is sprayed at rotor internal cavity packing layer 4 surface, under centrifugal action, From centrally along radially across filler, in packing layer 4, carry out adverse current or cross-flow haptoreaction with tail gas, absorb After liquid, thrown exocoel, through shell come together in bottom liquid outlet 9 pipe be discharged to baffle-box 10. Air-liquid during rotary filler layer by the small liquid film of repeated segmentation, coalescence poling, brin and Drop, forms the boundary of huge and quick renewal, quickly absorbs the pollutant in tail gas, it is achieved pollutant Efficient removal.Tail gas after washing, after demister 6, is discharged by offgas outlet 28.Cleaning mixture is through circulation Pump 11 is delivered to liquid distribution trough 5 by circulation line 13 by baffle-box 10.Waste water after washing is by dividing Flow tube road 14 flows into Waste Water Treatment.For ensure contaminant removal efficiency, can arrange two-stage oxidation device and Hypergravity wash mill, i.e. tail gas enter to secondary oxidation device through one-level hypergravity scrubbing tower offgas outlet, Gas after oxidation enters two grades of hypergravity wash mills, is then discharged out.
In conjunction with Fig. 1, waste water processes and uses multistep treatment technology to realize liquid waste processing, carries out Air Exposure respectively, Waste water is quenched, waste water emulsifying, waste water flocks and waste water flotation and oxidation, and waste water essence filters, at reverse osmosis Filter after reason and waste water, thus can reach IMO emission request.Wastewater treatment function is specifically achieved in that Flowed into the waste water of Waste Water Treatment by distribution pipeline 14, initially enter Aeration tank 12 Air Exposure, oxygen Change sulphite therein and nitrite, reduce the COD of waste water, then at waste water transfer pipeline Carry out in 34 adding medicament, carry out waste water including alkali liquor, coagulant and flocculant quenched, then enter air supporting Pond 16 carries out the emulsifying of waste water, flocks, the water source of dissolving 17 by the waste water after processing through delivery pump 18 Being supplied by pipeline 36, the pressure-air of pressurized tank 27 35 entrance dissolvings 17 by the road produce dissolved air water, Derive from the dissolved air water of dissolving to be entered by pipeline 37 by delivery pump 38 flotation tank 16 carries out flotation oxygen Changing, the foam waste residue floatingly selected scrapes through scraper plate, is stored in waste residue storage box 39.Waste water after process is through work Property carbon filter 20, after reaching the inflow requirement of reverse osmosis membrane reactor 21, enter reverse osmosis membrane reactor 21, by pressurized tank 27, reverse osmosis membrane reactor 21 influent side is pressurizeed, it is achieved salts substances and heavy metal Concentration, concentrate remaining strong brine by the road 24 flow into strong brine storage box 25, the clear water after process exists Be stored in after accurate filter 22 clean water storage box 26 standby or discharge outboard.

Claims (3)

1. the washing of marine low speed diesel engine vent gas and waste water process a set composite, it is characterized in that: include surpassing Gravity vent gas washing system, Waste Water Treatment；
Described hypergravity vent gas washing system includes catalyst oxidation reactor, hypergravity scrubbing tower, baffle-box； Described Waste Water Treatment includes that Aeration tank, dissolving, flotation tank, active carbon filter, reverse osmosis membrane are anti- Answer device, after-filter, strong brine storage box, clean water storage box；The waste gas that electromotor is discharged is passed through catalysis Oxidation reactor, catalyst oxidation reactor connects hypergravity scrubbing tower, hypergravity scrubbing tower by gas exhaust piping Lower section arranges cleaning mixture outlet, and cleaning mixture outlet connects baffle-box, and on the one hand baffle-box is provided by first The circulation line of circulating pump connects hypergravity scrubbing tower, on the other hand connects Aeration tank by distribution pipeline, exposes Flotation tank, active carbon filter, reverse osmosis membrane reactor, after-filter, clean water it is sequentially connected with behind gas pond Storage box, water processes alkali adding tank and dosing tank connects waste water transfer pipeline, and waste water transfer pipeline connects flotation tank, Pressurized tank is respectively communicated with Aeration tank, dissolving, reverse osmosis membrane reactor by air delivering pipeline, and dissolving passes through Water transfer pipeline connection flotation tank after process, dissolving connects flotation tank, air supporting by dissolved air water transfer pipeline Pond connects slag case, and strong brine storage box connects reverse osmosis membrane reactor.
A kind of marine low speed diesel engine vent gas washing the most according to claim 1 and waste water process compound dress Put, it is characterized in that: described hypergravity scrubbing tower includes that housing, demister, packing layer, motor, liquid divide Cloth device, the upper end of housing arranges offgas outlet, and cleaning mixture outlet is arranged on the lower end of housing, demister, fills out The bed of material, liquid distribution trough are arranged in housing, and demister is positioned at above packing layer and liquid distribution trough, fills out The bed of material is hollow structure, and liquid distribution trough is positioned in the hollow space of packing layer, and motor is positioned at below housing, Motor passes through rotor bonding pad layer, and circulation line connects liquid distribution trough.
A kind of marine low speed diesel engine vent gas washing the most according to claim 1 and 2 and waste water process multiple Locking device, is characterized in that: described catalyst oxidation reactor include ozone oxidation reaction device, catalyst oxidator, Plasma oxidation device or plasma catalytic oxidator.
CN201610423634.7A 2016-06-15 2016-06-15 Combined device for washing tail gas and treating waste water of low-speed diesel engine of ship Withdrawn CN105854602A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
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CN106799122A (en) * 2017-03-17 2017-06-06 北京沃尔福环保科技有限公司 A kind of hypergravity takes off ammonium salt device and technique
CN106865866A (en) * 2017-04-20 2017-06-20 盐城工学院 A kind of ammonia-containing water recirculation system and desulphurization denitration dust pelletizing system
CN106904711A (en) * 2017-04-20 2017-06-30 盐城工学院 A kind of calcium carbonate waste water circulation recovery system and calcium carbonate circulating purification system
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CN109200819A (en) * 2018-10-29 2019-01-15 江苏科技大学 A kind of ship tail gas processing unit and its birotor supergravity reactor
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CN106799122A (en) * 2017-03-17 2017-06-06 北京沃尔福环保科技有限公司 A kind of hypergravity takes off ammonium salt device and technique
CN106799122B (en) * 2017-03-17 2023-08-01 北京沃尔福环保科技有限公司 Supergravity ammonium salt removal device and process
CN106865866A (en) * 2017-04-20 2017-06-20 盐城工学院 A kind of ammonia-containing water recirculation system and desulphurization denitration dust pelletizing system
CN106904711A (en) * 2017-04-20 2017-06-30 盐城工学院 A kind of calcium carbonate waste water circulation recovery system and calcium carbonate circulating purification system
CN106925101A (en) * 2017-04-20 2017-07-07 盐城工学院 Hypergravity emission-control equipment, the exhaust-gas treatment circulatory system and desulfurization and dust-removal method
JP7175636B2 (en) 2018-06-01 2022-11-21 オルガノ株式会社 Scrubber wastewater purification device and method, and salinity concentration difference power generation system
JP2019209241A (en) * 2018-06-01 2019-12-12 オルガノ株式会社 Device and method of decontaminating scrubber effluent, and salinity difference power generation system
CN112203989A (en) * 2018-06-01 2021-01-08 奥加诺株式会社 Scrubber drain water purification device and method, and salinity concentration difference power generation system
CN109395575A (en) * 2018-08-02 2019-03-01 哈尔滨工程大学 A kind of ship tail gas desulfurization and denitrification integral processing method and processing device
CN109200819A (en) * 2018-10-29 2019-01-15 江苏科技大学 A kind of ship tail gas processing unit and its birotor supergravity reactor
CN109200819B (en) * 2018-10-29 2021-06-25 江苏科技大学 Ship tail gas treatment device and dual-rotor hypergravity reactor thereof
CN111350571A (en) * 2020-02-21 2020-06-30 南通大学 Tail gas purification device of supergravity diesel engine
CN111715072A (en) * 2020-06-23 2020-09-29 南通大学 Hypergravity formula diesel engine tail gas is purifier in coordination
CN112808102A (en) * 2021-01-28 2021-05-18 江西同建机械发展有限公司 Petrochemical effluent disposal system
CN114835302A (en) * 2022-06-01 2022-08-02 中船动力研究院有限公司 Ship exhaust gas recirculation wastewater treatment system and ship
WO2024021215A1 (en) * 2022-07-29 2024-02-01 中船动力研究院有限公司 Water treatment system and ship
CN116241359A (en) * 2023-03-01 2023-06-09 哈尔滨工程大学 Ship engine tail gas pollutant treatment device and pollutant treatment method
CN116241359B (en) * 2023-03-01 2023-09-22 哈尔滨工程大学 Ship engine tail gas pollutant treatment device and pollutant treatment method

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Application publication date: 20160817