CN110272140A - A kind of vehicular fire-fighting accident water scene rapid disposal method and equipment - Google Patents
A kind of vehicular fire-fighting accident water scene rapid disposal method and equipment Download PDFInfo
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- CN110272140A CN110272140A CN201810211132.7A CN201810211132A CN110272140A CN 110272140 A CN110272140 A CN 110272140A CN 201810211132 A CN201810211132 A CN 201810211132A CN 110272140 A CN110272140 A CN 110272140A
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- Prior art keywords
- flotation cell
- fire
- flotation
- water
- fighting
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005188 flotation Methods 0.000 claims abstract description 130
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000002893 slag Substances 0.000 claims description 30
- 238000007790 scraping Methods 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 24
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000008396 flotation agent Substances 0.000 claims description 2
- 238000001802 infusion Methods 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 9
- 239000010865 sewage Substances 0.000 abstract description 8
- 238000012545 processing Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000000047 product Substances 0.000 abstract description 4
- 230000007812 deficiency Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000013589 supplement Substances 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 description 65
- 239000003921 oil Substances 0.000 description 41
- 239000007789 gas Substances 0.000 description 9
- 239000006260 foam Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000012071 phase Substances 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 208000019901 Anxiety disease Diseases 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 210000003934 vacuole Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C02F1/20—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
- C02F1/24—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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/008—Mobile apparatus and plants, e.g. mounted on a vehicle
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The present invention relates to a kind of vehicular fire-fighting accident water scene rapid disposal method and equipment, which includes filter, stirred tank, one or more flotation cells, dissolving, air compressor machine or air container;For the technology of the present invention based on FLOTATION SEPARATION, oil-containing water body is re-used for Fire-fighting cooling fire extinguishing procedure after the link processings such as filtering, flotation.The fire-fighting accident water and similar sewage that can be generated through the invention for petrochemical industry fire are handled, and processing gained water body can be re-used for fire water extinguishing by cooling.By separating oil product from the scene of the accident, live oil content is reduced, and then reduce re-ignition risk;The water of acquisition is re-used for fire-fighting fire extinguishing, emergency supplement when as fire water supply deficiency.
Description
Technical field
The present invention relates to a kind of vehicular sewage scene rapid disposal method and equipment, in particular to a kind of fire-fighting accident is existing
Field fire-fighting accident water rapid disposal method and equipment.
Background technique
Fire fighting supply be put out a fire combat duty an important component, be determine fire extinguishing success or failure key factor it
One.The large-sized fire that chemical industry occurs, usual attack time is longer, and fire-fighting water content consumption is larger, easily occurs in fire extinguishing procedure
The situation of fire water supply anxiety.A large amount of unburned oil products and fire and cooling water system etc. are mixed in trickling liquid, if fire is held
The continuous time is longer, and the accumulation of fire-fighting accident water is excessive in fire wall, it may occur however that unrestrained dike accident, consequence are extremely serious.In addition, occurring
When large area, long-time fire, fire-fighting accident water water is very big, and the pollutants such as oils contained cause environment very big
Harm.
For the cycling and reutilization process of the mixing liquid, unburned oil is the largest one of problem in water.These
Oils can enter formation oil-containing water body in water by different approaches.Typically, according to the difference of oil droplet size size, can be divided into
Oil slick, dispersed oil, oil emulsion and dissolved oil.Wherein, oil emulsion is then present in water with emulsus form stable, it is more difficult to is removed.
Therefore, oil emulsion is separated from the water is technology emphasis of the invention.When common technique all has bad separating effect, processing
Between it is long the problems such as.It is shorter, no often to there is liquid residence time in the especially biggish continuous flowing oil water separation process for the treatment of capacity
The disadvantages of energy depth removal small particle oil droplet, it is unable to reach good separation requirement.
Since fire-fighting accident water usually contains the constituent of fire foam, with conventional sewage most very much not
Together, it is the surfactant containing more amount.The component easily foams.It is excessive that conventional treatment means will cause gas release, into
And it is poor to generate separating effect, the problem of water resource waste.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of quick disposition sides in vehicular fire-fighting accident water scene
Method and equipment, for fire-fighting accident water (unburned oil product, fire and cooling water system, the bubble generated during petrochemical industry fire-fighting fire extinguishing
The mixing liquid of the substances such as foam extinguishing agent) it is handled.In the present invention signified fire-fighting accident water include extinguishing chemical put out it is all kinds of
During petrochemical industry oils fire or after remaining sewage.Involved extinguishing chemical includes fire foam, water based fire suppressant
And its system mixed with other types extinguishing chemical.Involved oils includes: gasoline, diesel oil, solvent naphtha, crude oil etc..
The technical solution adopted by the present invention are as follows:
A kind of fire-fighting accident water disposal facility, including filter, stirred tank, one or more flotation cells, dissolving, pneumatics
Machine or air container;
When the quantity of flotation cell is 1;Filter is connected with stirred tank;Stirred tank is connected with flotation cell;Flotation cell side
Top is equipped with liquid outlet, and liquid outlet is connected with outlet tube, and a return pipe is communicated in the middle part of outlet tube, and one end of the return pipe connects
It connects on outlet tube, the other end is connected with the top of dissolving;The bottom of dissolving is connected with flotation trench bottom;At the top of flotation cell
Equipped with Slag Scraping Device, bottom is equipped with mud valve;Slag Scraping Device at the top of flotation cell is connected with oil storage tank, at the top of dissolving also with sky
Press or air container are connected;
When the quantity of flotation cell is multiple;Filter is connected with stirred tank;Stirred tank with along liquid flow direction first
A flotation cell is connected;It is connected in series between flotation cell, liquid outlet is equipped with above the last one flotation cell side, liquid outlet is connected with
Outlet tube is communicated with a return pipe in the middle part of outlet tube, and one end of the return pipe is connected on outlet tube, the other end and dissolving
Top be connected;The bottom of dissolving is connected with each flotation trench bottom;Slag Scraping Device, bottom installation are equipped at the top of each flotation cell
There is mud valve;Slag Scraping Device at the top of each flotation cell is connected with oil storage tank, also holds with air compressor machine or gas storage at the top of dissolving
Device is connected.
Preferably, the quantity of the flotation cell is 2-5.
Preferably, detachable choked flow grid is housed inside the flotation cell.It is highly preferred that choked flow grid aperture 3-
20mm, choked flow grid is arranged number of plies 1-5 layers in flotation cell.
Preferably, it is provided with snorkel on the oil storage tank, the breather valve with fire arrester is provided on snorkel.
The one or two of defoaming agent and/or demulsifier are placed in the stirred tank.
Preferably, the flotation sump volume is 0.5-40m3Cube, 0.5-2 meters of height, length-width ratio: 2:1-10:1.
The effect of flotation cell is to realize the depth FLOTATION SEPARATION of fire-fighting accident water.
The effect of multiple flotation cell settings is to improve the controllability and separative efficiency of the separation process of fire-fighting accident water.
The effect of filter is the big partial size solid for filtering fire-fighting accident water.
Dissolving effect is to provide dissolved air water.
The present invention also provides a kind of fire-fighting accident method for treating water, include the following steps:
1) fire-fighting accident water, is transported to filter, filter medium mesh diameter 0.8-20mm, the rate of filtration by pump
5m3/(m2*h)-50m3/(m2*h);
2) enter stirred tank after, filtering, be placed with defoaming agent and/or flotation agent in stirred tank;Stir 10-40min;Stirring
Revolving speed 50-300r/min;
3) enter in one or more flotation cells after, being mixed,
When the quantity of flotation cell is 1, flotation starts latter first 20 minutes, does not discharge, and the liquid for flowing out flotation cell enters
Dissolved air water is formed in dissolving, is flowed back into flotation cell again;When floating to Slag Scraping Device bottom containing oil whip, at the top of flotation cell
Slag Scraping Device brings into operation, and floats at the top of flotation cell containing oil whip, is scraped by Slag Scraping Device into slag-guiding plate, flows out flotation cell and enters oil storage
Tank, flotation after twenty minutes, open the valve on outlet tube, and water phase a part is flowed out by outlet tube, made as fire-fighting fire extinguishing water
With;A part enters dissolving, is then refluxed for entering in flotation cell;
When flotation cell is multiple, flotation cell is connected in series each other, and flotation starts latter first 20 minutes, do not discharge, and flows
The liquid of the last one flotation cell, which enters, out forms dissolved air water in dissolving, flowed back into each flotation cell again;Containing oil vacuole
When foam floats to Slag Scraping Device bottom, the Slag Scraping Device at the top of corresponding flotation cell brings into operation, and floats at the top of flotation cell containing oil whip, by scraping
Slag machine is scraped into slag-guiding plate, is flowed out flotation cell and is entered oil storage tank, and flotation after twenty minutes, opens the valve on outlet tube, and water phase one
Divide and flowed out by outlet tube, is used as fire-fighting fire extinguishing water;A part enters dissolving, is then refluxed for entering in flotation cell;
The defoaming agent is mainly used for reducing a large amount of foams occurred during FLOTATION SEPARATION, is active carbon, alumina silicate
Powder, waterglass, hydrophobicity silica flour, sodium tripolyphosphate, calgon, organic siloxane polymer, polyamines, Gao Juyi bis-
The combination of one or more of alcohol.
The demulsifier is mainly used for being demulsified to the pretreatment before the oily waste water air bearing containing oil emulsion, including SP type
One of agent, AP type demulsifier, AE type demulsifier or AR type demulsifier or two or more combinations.
Preferably, the temperature of fire-fighting fire extinguishing sewage is 0-60 DEG C in the step 1).
The flotation sump volume is 0.5-40m3Cube, 0.5-2 meters of height, length-width ratio: 2:1-10:1.
Preferably, detachable choked flow grid is housed inside flotation cell.It is highly preferred that choked flow grid aperture 3-20mm, flotation
Choked flow grid is arranged number of plies 1-5 layers in slot.
Preferably, the quantity of the flotation cell is 2-5.
Preferably, flotation cell flow 8-300m3/h.Preferably, flotation sump volume (m3) and flotation cell flow (m3/ h) number
Value is than being 1:(1-30).
Preferably, it is 0.5s/ -10s/ that Slag Scraping Device, which scrapes slag frequency,.
Preferably, dissolving pressure 0.5-0.9MPa.
Preferably, water phase has the aqueous-phase reflux of 5-50% to enter molten gas after liquid outlet outflow in the step 3)
In tank.
Possessed by of the invention the utility model has the advantages that
The fire-fighting accident water that the present invention is generated for petrochemical industry fire is handled, and is ultimately formed one kind and is disappeared for scene
The rapid disposal method and equipment of accident prevention water.For the technology of the present invention based on FLOTATION SEPARATION, oil-containing water body passes through filtering, flotation etc.
Fire-fighting cooling fire extinguishing procedure is re-used for after link processing.The fire-fighting accident that can be generated through the invention for petrochemical industry fire
Water and similar sewage are handled, and processing gained water body can be re-used for fire water extinguishing by cooling.By the way that oil product is showed from accident
Field is separated, and reduces live oil content, and then reduce re-ignition risk;The water of acquisition is re-used for fire-fighting fire extinguishing, as fire-fighting
Emergency supplement when insufficient water sources, effectively makes up the status that fire water supply is in short supply in chemical industrial park, increases China's fire-fighting police strength and goes out
The weapon and means that fire is fought, for protecting the country and people's property, life security to have a very important significance.
Detailed description of the invention
Fig. 1 is the schematic diagram of present device.
Fig. 2 is flotation cell equipment vertical section schematic diagram of the present invention;
Fig. 3 is the schematic diagram of choked flow grid.
Wherein, A-filter;B-stirred tank;C-flotation cell;D-dissolving;E-air compressor machine or air container;F-oil storage tank;
G-choked flow grid;H-screen hole.
1-fire-fighting accident water;2-filtered fire-fighting accident waters;3-defoaming agents;4-demulsifiers;5-filterings/defoaming/demulsification
Fire-fighting accident water afterwards;6-contain oil whip;7-gases (air or inert gas);8-dissolved air waters;9-separation water.
The water that the compressed air or inert gas and flotation cell come out from air compressor machine or air container comes out enters dissolving,
Dissolved air water is formed after being sufficiently mixed dissolution, dissolved air water enters in flotation cell by flotation trench bottom release.Due to pressure reduction,
The gas being dissolved in water can be discharged from water, and the gas released generates foam after contacting with oil-containing fire-fighting accident water, be floated
It at the top of to flotation cell, is scraped by Slag Scraping Device into slag-guiding plate, flows out flotation cell and enter oil storage tank, water phase is flowed out from flotation cell side.If
Surface-active contents are higher in oil-containing fire-fighting fire extinguishing sewage, and generation bubble is larger, more, then pass through to be arranged in flotation cell and hinder
Grid is flowed, flotation bubble rate and Air Bubble Size are reduced.Choked flow grid is Multi-layer lattice grid plate structure, by adjusting grid Board position
Adjust choked flow aperture.Meanwhile using multi-stage flotation groove form, the FLOTATION SEPARATION load in every grade of flotation cell, Jin Eryou can be reduced
The generation of effect control bubble.It is handled by multistage continuous flotation, realizes the scene quickly disposition of fire-fighting accident water.Air compressor machine or storage
When gas container inner pressure or gas deficiency, ftercompction or tonifying Qi are carried out to it, and pressure in dissolving is maintained to stablize.
Specific embodiment
The present invention is further explained in the light of specific embodiments, but the scope of protection of the present invention is not limited.
Embodiment 1:
A kind of fire-fighting fire extinguishing sewage disposal plant, including filter (A), stirred tank (B), three flotation cells (C), dissolvings
(D), air compressor machine or air container (E), wherein
Filter (A) is connected with stirred tank (B);Stirred tank (B) and first flotation cell (C) phase flowed to along liquid
Even;It is connected in series between three flotation cells (C), liquid outlet is equipped with above the last one side flotation cell (C), liquid outlet is connected with
Outlet tube is communicated with a return pipe in the middle part of outlet tube, and one end of the return pipe is connected on outlet tube, the other end and dissolving
(D) top is connected;The bottom of dissolving (D) is connected with three flotation cell (C) bottoms respectively;The top of each flotation cell (C)
Equipped with Slag Scraping Device, bottom is equipped with mud valve;Slag Scraping Device at the top of flotation cell (C) is connected with oil storage tank (F), dissolving
(D) top is also connected (E) with air compressor machine or air container.
It is provided with snorkel on the oil storage tank (D), the breather valve with fire arrester is provided on snorkel.
Dismountable choked flow grid (G) is housed inside each flotation cell (C).Choked flow grid (G) aperture 8mm, flotation cell (C)
Interior choked flow grid (G) is arranged 2 layers of the number of plies.
The one or two of defoaming agent and/or demulsifier are placed in stirred tank (B).
Each flotation cell (C) volume is 10m3Cube, height 1.5 meters, length-width ratio: 3:1.
Embodiment 2
Fire-fighting accident water 60t is handled with hour, continuous processing time 10h is handled for scene.Oils used of putting out a fire is
Diesel oil, extinguishing chemical type are fluoroprotein foam extinguishing agent.
Using equipment described in embodiment 1.
The fire-fighting accident water inlet amount that the scene of the accident generates is 60m3/ h, temperature are 30 DEG C.Fire-fighting accident water initially enters
Filter (A), filter medium mesh diameter 8mm, rate of filtration 9m3/(m2*h).Enter stirred tank (B) after filtering, SP type is added
Demulsifier and aluminium silicate powder, initial incremental amount are the 0.03% of inlet amount, (after according to flotation cell (C) flotation situation adjust) stirring
30min, speed of agitator 80r/min.It is sequentially entered after mixing in three flotation cells (C);Flotation starts latter first 20 minutes,
It does not discharge, the liquid for flowing out the last one flotation cell (C) forms dissolved air water by dissolving (D), flows back into three again and floats
It selects in slot (C);Detachable choked flow grid (G) is equipped in each flotation cell (C), choked flow grid (G) aperture 8mm is arranged 3 layers;It is molten
The control of gas tank (D) pressure carries out after ten minutes in 0.58MPa, flotation, and the Slag Scraping Device at the top of each flotation cell (C) brings into operation,
Scraping slag frequency is 1.5s/ times, is floated at the top of flotation cell (C) containing oil whip, is scraped by Slag Scraping Device into slag-guiding plate, is flowed out flotation cell (C)
Into oil storage tank (F), flotation after twenty minutes, opens the valve on outlet tube, and water phase 80% is flowed out from outlet tube, and residue passes through back
Flow tube enters dissolving (D), is then refluxed for entering in three flotation cells (C).
10min before floatation process stops charging;10-20min, feed flow rate is according to the interior level condition tune of flotation cell (C)
Section;After 20min, it is gradually brought to initial charge flow velocity, and keeps stable.
By the method for the invention, water-oil separating rate is up to 90%.
Claims (10)
1. a kind of fire-fighting accident water disposal facility, it is characterised in that: including filter, stirred tank, one or more flotation cell, molten
Gas tank, air compressor machine or air container;
When the quantity of flotation cell is 1;Filter is connected with stirred tank;Stirred tank is connected with flotation cell;Above flotation cell side
Equipped with liquid outlet, liquid outlet is connected with outlet tube, and a return pipe is communicated in the middle part of outlet tube, and one end of the return pipe is connected to
On outlet tube, the other end is connected with the top of dissolving;The bottom of dissolving is connected with flotation trench bottom;It is equipped at the top of flotation cell
Slag Scraping Device, bottom are equipped with mud valve;Slag Scraping Device at the top of flotation cell is connected with oil storage tank, and dissolving top is gone back and air compressor machine
Or air container is connected;
When the quantity of flotation cell is multiple;Filter is connected with stirred tank;Stirred tank with it is floating along first of liquid flow direction
Slot is selected to be connected;It is connected in series between flotation cell, liquid outlet is equipped with above the last one flotation cell side, liquid outlet is connected with out liquid
It manages, is communicated with a return pipe in the middle part of outlet tube, one end of the return pipe is connected on outlet tube, the top of the other end and dissolving
Portion is connected;The bottom of dissolving is connected with each flotation trench bottom;Slag Scraping Device is equipped at the top of each flotation cell, bottom is equipped with row
Slurry valve door;Slag Scraping Device at the top of each flotation cell is connected with oil storage tank, at the top of dissolving also with air compressor machine or air container phase
Even.
2. a kind of fire-fighting accident water disposal facility according to claim 1, it is characterised in that: the quantity of the flotation cell is 2-
5.
3. a kind of fire-fighting accident water disposal facility according to claim 1, it is characterised in that: being equipped with inside the flotation cell can
Dismantle choked flow grid;It is highly preferred that choked flow grid aperture 3-20mm, choked flow grid is arranged number of plies 1-5 layers in flotation cell.
4. a kind of fire-fighting accident water disposal facility according to claim 1, it is characterised in that: be placed with and disappear in the stirred tank
The one or two of infusion and/or demulsifier.
5. a kind of fire-fighting accident water disposal facility according to claim 1, it is characterised in that: the flotation sump volume is 0.5-
40m3Cube, 0.5-2 meters of height, length-width ratio: 2:1-10:1.
6. a kind of fire-fighting accident method for treating water, characterized by the following steps:
1) fire-fighting accident water, is transported to filter, filter medium mesh diameter 0.8-20mm, rate of filtration 5m by pump3/
(m2*h)-50m3/(m2*h);
2) enter stirred tank after, filtering, be placed with defoaming agent and/or flotation agent in stirred tank;Stir 10-40min;Speed of agitator
50-300r/min;
3) enter in one or more flotation cells after, being mixed,
When the quantity of flotation cell is 1, flotation starts latter first 20 minutes, does not discharge, and the liquid for flowing out flotation cell enters molten gas
Dissolved air water is formed in tank, is flowed back into flotation cell again;When floating to Slag Scraping Device bottom containing oil whip, slag is scraped at the top of flotation cell
Machine brings into operation, and floats at the top of flotation cell containing oil whip, is scraped by Slag Scraping Device into slag-guiding plate, flows out flotation cell and enters oil storage tank, floats
Choosing after twenty minutes, opens the valve on outlet tube, and water phase a part is flowed out by outlet tube, used as fire-fighting fire extinguishing water;One
Part enters dissolving, is then refluxed for entering in flotation cell;
When flotation cell is multiple, flotation cell is connected in series each other, and flotation starts latter first 20 minutes, do not discharge, and outflow is most
The liquid of the latter flotation cell, which enters, forms dissolved air water in dissolving, flowed back into each flotation cell again;It is floating containing oil whip
When to Slag Scraping Device bottom, the Slag Scraping Device at the top of corresponding flotation cell brings into operation, and floats at the top of flotation cell containing oil whip, by Slag Scraping Device
It scrapes into slag-guiding plate, flows out flotation cell and enter oil storage tank, flotation after twenty minutes, opens the valve on outlet tube, and water phase a part is logical
Outlet tube outflow is crossed, is used as fire-fighting fire extinguishing water;A part enters dissolving, is then refluxed for entering in flotation cell.
7. a kind of fire-fighting accident method for treating water according to claim 6, it is characterised in that: being equipped with inside the flotation cell can
Dismantle choked flow grid;It is highly preferred that choked flow grid aperture 3-20mm, choked flow grid is arranged number of plies 1-5 layers in flotation cell.
8. a kind of fire-fighting accident method for treating water according to claim 6, it is characterised in that: the quantity of the flotation cell is 2-
5.
9. a kind of fire-fighting accident method for treating water according to claim 6, it is characterised in that: Slag Scraping Device scrapes slag frequency and is
0.5s/ times -10s/ times.
10. a kind of fire-fighting accident method for treating water according to claim 6, it is characterised in that: dissolving pressure 0.5-
0.9MPa。
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CN203319808U (en) * | 2013-07-02 | 2013-12-04 | 四川高通环保科技股份有限公司 | Mobile sewage treatment plant |
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CN205222737U (en) * | 2015-12-21 | 2016-05-11 | 俞洋 | Multistage single pump air supporting of corridor formula deoiling device |
CN205803146U (en) * | 2016-06-29 | 2016-12-14 | 重庆开达环保工程有限公司 | Oily waste water efficient cyclone |
CN206126930U (en) * | 2016-11-03 | 2017-04-26 | 上海泰霖科环保工程有限公司 | Modular backward flow pressure dissolves gas air supporting device |
CN208071494U (en) * | 2018-03-14 | 2018-11-09 | 公安部天津消防研究所 | A kind of quick disposal facility in vehicular fire-fighting accident water scene |
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CN202113943U (en) * | 2011-06-10 | 2012-01-18 | 烟台鑫海矿山机械有限公司 | Foam damper for flotation machine and flotation machine |
CN103771653A (en) * | 2012-10-24 | 2014-05-07 | 周鼎力 | Method and special vehicle used for movable-type sewage purification treatment |
CN203319808U (en) * | 2013-07-02 | 2013-12-04 | 四川高通环保科技股份有限公司 | Mobile sewage treatment plant |
CN205222737U (en) * | 2015-12-21 | 2016-05-11 | 俞洋 | Multistage single pump air supporting of corridor formula deoiling device |
CN205803146U (en) * | 2016-06-29 | 2016-12-14 | 重庆开达环保工程有限公司 | Oily waste water efficient cyclone |
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Application publication date: 20190924 |