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CN202671253U - Preliminary oily sewage separation device - Google Patents

Preliminary oily sewage separation device Download PDF

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Publication number
CN202671253U
CN202671253U CN 201220230616 CN201220230616U CN202671253U CN 202671253 U CN202671253 U CN 202671253U CN 201220230616 CN201220230616 CN 201220230616 CN 201220230616 U CN201220230616 U CN 201220230616U CN 202671253 U CN202671253 U CN 202671253U
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CN
China
Prior art keywords
separation device
regulating tank
oily
waste
inner canister
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Expired - Lifetime
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CN 201220230616
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Chinese (zh)
Inventor
蒋晓峰
彭忠军
丁文林
张元湘
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China Petroleum and Chemical Corp
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China Petroleum and Chemical Corp
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Priority to CN 201220230616 priority Critical patent/CN202671253U/en
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Abstract

The utility model discloses a preliminary oily sewage separation device, which comprises an adjusting tank and a hydraulic cyclone separation device, wherein the hydraulic cyclone separation device comprises an oil spill collector and a cyclone separator; an inner tank is arranged in the adjusting tank; the inner tank is arranged at the bottom of the adjusting tank; the upper side in the inner tank is provided with the hydraulic cyclone separation device; the bottom of the inner tank is provided with a settling area; the bottom of the settling area is connected with a mud discharge port outside the adjusting tank through a mud discharge pipeline; the cyclone separator of the hydraulic cyclone separation device is connected with an oily sewage inlet outside the adjusting tank through a water inlet pipeline; the oil spill collector of the hydraulic cyclone separation device is connected with an oil outlet outside the adjusting tank through an oil outlet pipeline; and the inner tank is communicated with the adjusting tank through a plurality of overflow pipes. The preliminary oily sewage separation device has novel functions of preliminary oil removal, oil accumulation prevention, improvement of the treatment capacity of the device and the like, particularly for capacity expansion and transformation of the old device; the preliminary oily sewage separation device has the characteristics of shortness, flatness and rapidness; the problems that the original sewage adjusting tank is low in efficiency and the two functions of homogenizing and buffering are difficult to consider are basically solved; and the lowest liquid level control of the outer tank is ensured, and the long-term stable operation of the adjusting tank is realized.

Description

Oily(waste)water initial gross separation device
Technical field
The utility model relates to a kind of oil production and refining oil-contained waste water treatment device, particularly a kind of oily(waste)water initial gross separation device.
Background technology
In recent years oily water treatment technical development is very fast, and treatment process commonly used mainly contains following several.
(1) Physical
A gravitational separation process: utilize the difference in specific gravity of oil and water and mutual insoluble separation of oil and water, comprise come-up partition method, mechanical phonograph recorder separation and hydraulic cyclone method.
B coalescence: utilize the avidity difference of oil, water two relative coalescence materials and separate.It processes object mainly is dispersed oil in the water, and coalescence material commonly used has polyethylene particle, quartz sand, haydite and hard coal etc.
C filtration method: mainly remove dispersed oil and oil in water emulsion.
D membrane separation process: utilize porous membrane different from the solid film surface affinity and reach and separate purpose to two-phase in liquid-liquid dispersion system.
(2) physico-chemical processes
The A flotation process: after utilizing oil droplet to adhere to microbubble in the water, buoyancy increases and come-up is separated.
B absorption method: utilize the porosu solid sorbent material that the dissolving oil in the oily(waste)water and other Dissolved Organic Matter are carried out surface adsorption.Sorbent material commonly used has gac and charcoal.
(3) chemical demulsification method
This method is to throw in chemical agent (emulsion splitter) in oil-containing oil emulsion sewage, makes the emulsion demulsification, reaches oily water separation, and breakdown of emulsion generally comprises pH regulator, cohesion, the processes such as absorption.
(4) biochemical process
Biochemical process is to utilize microorganism to make partial organic substances (comprising oils) be new microorganism as organic composition or the propagation that nutritive substance is absorbed, transforms, synthesizes in the microbe, and rest part is decomposed into simple inorganic or organism.Be divided into activated sludge process, oxidation pond process and biomembrance process from process form.
(5) electrochemical process
A electrolytic process: comprise the floating upper method of electrolysis-coagulation absorption method and electrolysis.Electrolysis-coagulation absorption utilizes the solvability electrolysis to contain emulsifying greasy dirt water, goes out metal ion from the solvability anode dissolution, and metal ion generation hydrolytic action generates oxyhydroxide absorption.The floating upper rule of electrolysis utilizes the insoluble electrode electrolysis to contain oil in water emulsion and dissolving oil waste water, utilizes the floating upper effect of the micro-bubble of electrolytic separation effect and status nascendi, oil in water emulsion is destroyed, the oil droplet come-up.
B electromagnetism fractionation by adsorption: this method is that melting property particle and oily(waste)water are blended in the adsorption process, utilizes the magnetization effect of oil droplet, by magnetic filter device oil content is removed again.Japan early Tian Wenlong adopts High-gradient Magnetic isolation technique (GHMS) to purify oily(waste)water, and demulsification is remarkable.
In addition, the method for processing oily(waste)water also has the oily water treatment technology such as concentrated burning method, heating method, ultrasonic separation method to be divided into coagulation, second-stage treatment and tertiary treatment by degree for the treatment of.The used method of coagulation comprises settling methods, flotation process etc.; The second-stage treatment method mainly is coacervation, biochemical process etc.; The tertiary treatment method has absorption method, membrane separation process etc.Sewage from oil refinery generally can reach emission standard through second-stage treatment, and the enterprise of domestic employing tertiary treatment is few, and external a lot of sewage from oil refinery generally all adopts three grades or advanced treatment process.Have as the coagulation Main Means at present: regulating tank+secondary oil removal+secondary air-floatation, regulating tank+one-level oil removal+secondary air-floatation, regulating tank+one-level oil removal+one-level air supporting, some only has oil removal+air supporting without regulating tank.Parallel flow intercepter is generally selected in oil removal, the less use of inclined tube tilted plate intercepter; On secondary air-floatation, make up variedly, mainly contain air-dissolving air-float+cavitation air flotation, air-dissolving air-float+screw-pushing type air supporting etc., being set up at cloth also has series connection and in parallel dividing.
But the processing cost of above-mentioned oil-sewage separation device is higher, and deoiling effect is low, be difficult to take into account homogeneous and cushion two kinds " chronic illnesses " such as functions; And greasy dirt treatment capacity ability is low, and the treatment process of chemistry has certain pollution to atmosphere, and workman's operating environment is poor.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art and a kind of oily(waste)water initial gross separation device that has preliminary oil removing, anti-oil accumulation, improves the new functions such as device processing power is provided, particularly on old device capacity expansion revamping, have short, flat, fast characteristics, substantially solved original sewage regulating tank inefficiency, be difficult to take into account homogeneous and cushioned two kinds " chronic illnesses " such as functions, guarantee the control of outer tank minimum liquid level, realize regulating tank operation steady in a long-term.
A kind of oily(waste)water initial gross separation device, comprise regulating tank, the waterpower spiral liquid separation device, described waterpower spiral liquid separation device comprises floating-oil collector and wet cyclone, in the described regulating tank inner canister is installed, described inner canister is arranged on the bottom of described regulating tank, upside in the described inner canister is equipped with described waterpower spiral liquid separation device, the bottom is provided with the negative area, the bottom of described negative area is connected by the outer mud discharging mouth of spoil disposal pipeline and described regulating tank, the wet cyclone of described waterpower spiral liquid separation device is connected by the outer oily(waste)water import of inlet channel and described regulating tank, the floating-oil collector of described waterpower spiral liquid separation device is connected by the outer oil outlet of flowline and described regulating tank, and described inner canister is communicated with described regulating tank by a plurality of upflow tubes.
In the utility model, described inner canister also is communicated with by return line with described regulating tank, and the vertical height of described return line and described regulating tank junction is lower than the vertical height of described return line and described inner canister junction.
In the utility model, the vertical height of described upflow tube end in described inner canister is lower than the vertical height of described upflow tube end in described regulating tank, and described upflow tube end in described inner canister is higher than described negative area.
In the utility model, described regulating tank is provided with two de-oiling sewage outlet, one of them de-oiling sewage outlet is arranged on the bottom of described regulating tank, and another de-oiling sewage outlet is connected with outlet conduit, the import of described outlet conduit be arranged on described regulating tank in, top.
In the utility model, be equipped with valve on described return line, spoil disposal pipeline, inlet channel, flowline and the outlet conduit.
In the utility model, described inner canister is arranged in the described regulating tank with one heart.
In the utility model, described negative area is the back taper bodily form, is provided with described spoil disposal pipeline at the bottom of the cone of described negative area.
In the utility model, described floating-oil collector top is provided with steam heating coil.
Adopt such scheme, the utlity model has following advantage:
1, arrange one in original regulating tank and separate inner canister, utilized existing equipment, investment reduces, and the homogeneous deoiling effect improves;
2, because inner canister is arranged in the described regulating tank with one heart, prevent that in operational process produce large vibrations, the sewage regulating tank is reliable;
3, utilize the waterpower spiral liquid separation device, accelerated water and oil separating speed, under equal conditions can improve 2~3 times for the treatment of capacity abilities; And sewage adaptability is large, and regulation range is large, is not substantially advanced the impact of water oleaginousness height, stable effluent quality;
5, be the mode of physical sepn owing to what adopt, without topsoil, improve operating environment;
6, the negative area is the back taper bodily form, the convenient solid particulate of getting rid of in the negative area;
7, pass through return line so that when the initial launch of this device, lower the height of liquid in the inner canister, prevent from producing when the waterpower spiral liquid separation device moves because the interior liquid of inner canister is too high excessive vibrations.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, describe a kind of embodiment of oily(waste)water initial gross separation device in detail.
As shown in Figure 1, the waterpower spiral liquid separation device model of this device is that WS-II-50/200 is fastened marine boat company and produced.Its groundwork principle: sewage at first passes through the oily(waste)water import 11 of the sewage conveying tube of reducing, enter into the hydrocyclone separation technology district of the wet cyclone 4 of inner canister 2, oily(waste)water produces high speed rotating in a multitubular bundles waterpower wet cyclone of waterpower spinning liquid disengaging zone, utilize oil and the different centrifuge field of the poor generation of the different densities of water, under the effect of centrifugal force, oily(waste)water is carried out pre-treatment.Because liquid can produce secondary lifting liquid stream in swirler, so, not only can immiscible profit be separated, also can produce larger effect of settling to the solid phase in the liquid, so that the solid part in the liquid is deposited in the negative area 7, realize oily(waste)water is carried out the purpose of three phase separation.
Settling region 7 is the back taper bodily form, is provided with described spoil disposal pipeline at the bottom of the cone of described settling region 7 and is connected with mud discharging mouth 8.
Inner canister 2 also is communicated with by return line 6 with regulating tank 1, and the vertical height of described return line 6 and regulating tank 1 junction is lower than the vertical height of return line 6 and inner canister 2 junctions
Above the floating-oil collector 3 above the waterpower wet cyclone, be provided with steam heating coil, can be used for winter temperature when low, be convenient to receive oil.
Negative area 7 is the back taper bodily form, is provided with described spoil disposal Residue extraction pipeline at the bottom of the cone of negative area 7.
Be provided with collection tube everywhere at floating-oil collector 3 centers of waterpower spiral liquid separation device and be connected with oil outlet 10, can be interrupted by self-pressure or pump mode being delivered in the slop oil tank.
The even many upflow tubes 5 that distribute are used for inner canister 2 middle and lower part sewage overflows to regulating tank 1 around inner canister 2.
One pipe connecting 6 that links to each other with regulating tank 1 is set in inner canister 2 bottoms, as opening, stop work use, shakes to prevent the excessively low inner canister 2 that makes of regulating tank 1 liquid level.
All adopt metallic hose to link to each other at inner canister 2 and regulating tank 1 all pipelines that link to each other.
Be provided with de-oiling sewage effluent 12 in the regulating tank 1, de-oiling sewage effluent 12 tops are a concentric reducer funnel, in order in time regulating tank top oil slick is discharged, prevent from gathering at regulating tank.
The numerical value that is compared with the prior art for this device embodiments in the table one.
Table one
Figure BDA00001664511800061
Table two is the numerical value of this device operational condition and the contrast of prior art operational condition.
Table two
Operational condition Prior art Embodiment
Regulating tank inlet velocity (m/s) 1~3 Do not consider
The regulating tank sewage temperature (℃) 20~60 20~60
Regulating tank intake pressure (MPa) 0.1~0.3 Do not consider
Regulating tank liquid level (m) 6~9 ≤9

Claims (8)

1. oily(waste)water initial gross separation device, comprise regulating tank, the waterpower spiral liquid separation device, described waterpower spiral liquid separation device comprises floating-oil collector and wet cyclone, it is characterized in that: in the described regulating tank inner canister is installed, described inner canister is arranged on the bottom of described regulating tank, upside in the described inner canister is equipped with described waterpower spiral liquid separation device, the bottom is provided with the negative area, the bottom of described negative area is connected by the outer mud discharging mouth of spoil disposal pipeline and described regulating tank, the wet cyclone of described waterpower spiral liquid separation device is connected by the outer oily(waste)water import of inlet channel and described regulating tank, the floating-oil collector of described waterpower spiral liquid separation device is connected by the outer oil outlet of flowline and described regulating tank, and described inner canister is communicated with described regulating tank by a plurality of upflow tubes.
2. oily(waste)water initial gross separation device according to claim 1, it is characterized in that: described inner canister also is communicated with by return line with described regulating tank, and the vertical height of described return line and described regulating tank junction is lower than the vertical height of described return line and described inner canister junction.
3. oily(waste)water initial gross separation device according to claim 2, it is characterized in that: the vertical height of described upflow tube end in described inner canister is lower than the vertical height of described upflow tube end in described regulating tank, and described upflow tube end in described inner canister is higher than described negative area.
4. according to claim 1 to one of 3 described oily(waste)water initial gross separation devices, it is characterized in that: described regulating tank is provided with two de-oiling sewage outlet, one of them de-oiling sewage outlet is arranged on the bottom of described regulating tank, another de-oiling sewage outlet is connected with outlet conduit, and the import of described outlet conduit is arranged on the middle part of described regulating tank.
5. oily(waste)water initial gross separation device according to claim 4 is characterized in that: be equipped with valve on described return line, spoil disposal pipeline, inlet channel, flowline and the outlet conduit.
6. according to claim 1 to one of 3 described oily(waste)water initial gross separation devices, it is characterized in that: be concentric setting in described inner canister and the described regulating tank.
7. oily(waste)water initial gross separation device according to claim 5, it is characterized in that: described negative area is the back taper bodily form, is provided with described spoil disposal pipeline at the bottom of the cone of described negative area.
8. oily(waste)water initial gross separation device according to claim 1 is characterized in that: be provided with steam heating coil above the described floating-oil collector.
CN 201220230616 2012-05-21 2012-05-21 Preliminary oily sewage separation device Expired - Lifetime CN202671253U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106007209A (en) * 2016-07-08 2016-10-12 南京日嘉新环保科技有限公司 Oil removing pretreatment technology for petroleum oil refining wastewater
CN111018163A (en) * 2020-01-08 2020-04-17 海南海嘉惠科技有限公司 An electrical elimination cation water processor cracks the aging oil treatment device
CN111875149A (en) * 2020-07-03 2020-11-03 季丹萍 Oil-containing and slag-containing wastewater treatment system
CN113666557A (en) * 2021-07-29 2021-11-19 鄯善万顺发新能源科技有限公司 Preparation method for treating and recycling coal tar hydrogenation wastewater

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106007209A (en) * 2016-07-08 2016-10-12 南京日嘉新环保科技有限公司 Oil removing pretreatment technology for petroleum oil refining wastewater
CN106007209B (en) * 2016-07-08 2018-12-25 南京日嘉新环保科技有限公司 A kind of oil refinery's sewage oil removing pretreating process
CN111018163A (en) * 2020-01-08 2020-04-17 海南海嘉惠科技有限公司 An electrical elimination cation water processor cracks the aging oil treatment device
CN111875149A (en) * 2020-07-03 2020-11-03 季丹萍 Oil-containing and slag-containing wastewater treatment system
CN111875149B (en) * 2020-07-03 2022-07-15 季丹萍 Oil-containing and slag-containing wastewater treatment system
CN113666557A (en) * 2021-07-29 2021-11-19 鄯善万顺发新能源科技有限公司 Preparation method for treating and recycling coal tar hydrogenation wastewater

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Granted publication date: 20130116