CN203904135U - Low-temperature separation system for waste emulsified oil - Google Patents
Low-temperature separation system for waste emulsified oil Download PDFInfo
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- CN203904135U CN203904135U CN201420341833.XU CN201420341833U CN203904135U CN 203904135 U CN203904135 U CN 203904135U CN 201420341833 U CN201420341833 U CN 201420341833U CN 203904135 U CN203904135 U CN 203904135U
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model discloses a low-temperature separation system for waste emulsified oil. The low-temperature separation system comprises an original liquid input pipe, a heat exchanger, an evaporator, an oil-water separator, a condenser and a deodorizer, wherein the evaporator comprises a heating chamber, an evaporation chamber and a water vapor conveying pipe; a vapor compressor is arranged on the water vapor conveying pipe; the original liquid input pipe penetrates through the heat exchanger and is connected to the heating chamber of the evaporator; a distilled water conveying pipe penetrates through the heat exchanger and is connected to the oil-water separator; the oil-water separator is provided with a distilled water output pipe and an oil discharging pipe; the oil discharging pipe is sequentially connected with the condenser and the deodorizer. According to the low-temperature separation system, vaporization separation is carried out based on a purely physical manner according to the difference of boiling points of different liquids, distilled water and concentrates are obtained through pure distillation separation, generally, the distilled water can be reused again as industrial water, the concentrates are recycled and reused according to different sources, then, the zero discharge of wastewater of industrial enterprises is realized, and the systematization and instrumentation are facilitated, so that the floor area is greatly reduced compared with that of the traditional methods.
Description
Technical field
The utility model relates to useless oil in water emulsion cryogenic separation system.
Background technology
Oily(waste)water is a kind of of trade effluent, and is the discharge rich and influential family of trade effluent.Oily(waste)water is mainly derived from the industrial sectors such as oil, petrochemical complex, iron and steel, coking, gas generating station, mechanical workout, comprise oil field waste, the waste water of refinery and petroleum chemical plant, the water ballast of oil tanker, washwater, engine room water, the rinse water of oil tank (groove) car etc.Oily(waste)water is the main source that causes environment oil pollution, particularly marine oil pollution (as petroleum pollution).In the waste water of producer gas plant, coke-oven plant, contain coal tar, the waste water of tannery, food processing plant contains vegetable and animals oils, and these also belong to oily(waste)water, but proportion is little.
Conventionally the treatment technology of oily(waste)water is as follows:
1.1 mechanical phonograph recorder separation
The multiplex sewage primary treatment of doing of mechanical phonograph recorder separation, its action principle is in mechanical means, to utilize oil, water relative density difference to carry out separation.Its velocity of separation depends on that oil and the density difference of water are, the viscosity of size, flow state and the fluid of oil droplet particle.Conventional equipment has oil trap, and its kind is a lot, and what generally adopt both at home and abroad is the forms such as flat flow (APZ), parallel plate type (PlPI), corrugated plate dst (CPI).
1.2 By Bubble-floating Method
By Bubble-floating Method also claims flotation process, its principle is to manage to make to produce in water a large amount of microbubbles, to form the three-phase mixture of water, gas and pollutent, under the acting in conjunction of the many kinds of force such as interfacial tension, bubble rising buoyancy and hydrostaticpressure be poor, after promotion micro bubble sticks to and needs in removed tiny oil droplets, because adherend density is less than water, float to the water surface, thereby make the separated removal of elaioleucite in water.By Bubble-floating Method as a kind of efficiently, solid-liquid separation technique fast, start from ore dressing, and be widely used a kind of water technology during domestic and international oily(waste)water is processed at present.
By Bubble-floating Method is divided into according to aerogenesis mode difference: air-dissolving air-float, inflation air supporting and electrofloatation.
1.3 flocculent precipitation
In water treatment method flocculent precipitation most widely used general, cost is minimum.This method refers in waste water, adds a certain amount of flocculation agent, makes it carry out physical-chemical reaction, reaches the object of water body purification.At present both at home and abroad not only economy but also easy water technology are the processing efficiencies of increasing water quality, and one of its key issue is the selection of flocculation agent.The flocculation agent that flocculent precipitation is conventional is generally divided into inorganic flocculating agent, organic floculant and composite flocculation agent.In wastewater treatment, How to choose flocculation agent will be selected according to the concrete property of waste water, also will see in which link simultaneously and add flocculation agent, makes what purposes.
1.4 absorption method
It is the water treatment procedure that utilizes the separated water pollutant of porousness solid-phase material sorption that absorption method is processed.Sorbent material is generally divided into carbon absorbent, inorganic adsorbent and organic adsorbent.Conventional sorbent material has gac, activated coal, coke, cinder, resin, wood chip etc.Wherein gac use range is the widest, recyclable useful material, and high adsorption capacity, but working cost is high, and the pre-treatment requirement of in addition intaking is high, has limited its application.Absorption method is in processing the practical application of oily(waste)water, and key is to seek suitable sorbent material.Polymeric adsorbent is a kind of porous resin that in field of polymer technology recent years, new development is got up, and it is by monomers such as divinylbenzenes, under the organic solvents such as toluene exist, and the little ball of the roe sample making by suspension copolymerization method.Its absorption property is good, and easily regeneration, can Reusability, and recently increasing insider studies the synthetic and application of efficient oil-absorbing resin.
1.5 biochemical process
Biochemical process is to utilize microorganism cleaning sewage, the organic pollutant that they are usingd in water body is as the nutrition foodstuff of oneself, by processes such as absorption, absorption, oxidation, decomposition, organism is become to simple inorganics, both the needs that met microorganism breeding itself and vital movement, have purified again sewage.Biochemical process can be divided into aerobic treatment and anaerobic treatment, has the forms such as active sludge, microbial film and oxidation pond.Biochemical treatment process is that in waste water application is at most the most extensively and a kind of quite effective method, be specially adapted to process oily(waste)water, but exist lower to change of water quality and impact load, easily produce the shortcomings such as sludge bulking, and in waste water, the kind of oleaginous materials also has very big impact to the effect of biochemical treatment.
Except above several method, the treatment process of oily(waste)water is also had to electrolytic process, coalescence, salting-out process, filtration method etc.
Existing oily(waste)water processing mode is due to the restriction of technique means, reality implement and utilization process in there is many restrictions, no matter be that flocculent precipitation or biochemical process all cannot be avoided using a large amount of chemical agents and cause the high cost of processed in units and cause secondary pollution.In addition traditional mechanical filter mode and air-floating processing apparatus all can not good corresponding heavy metal ion and inorganic salts carry out separatedly, thereby must coordinate other chemical processes to carry out secondary treatment and pollute thing carrier, shift and cause secondary pollution and increase processing cost.
In addition traditional technology major part can not realize equipment, and the construction in anaerobic-aerobic pond will take large quantity space and a large amount of initial stage drops into and later maintenance expense.
Simultaneously for COD, often surpass the high density oil-containing industrial sewage of 100000ml/L, above treatment technology weak or old too high cannot the processing that often seem.
Utility model content
The purpose of this utility model is to provide a kind of useless oil in water emulsion cryogenic separation system, mode based on pure physics is carried out gasification separation according to different liqs boiling point difference, by pure fractionation by distillation, become distilled water and enriched material, conventionally distilled water can be used as process water reuse again, enriched material is reclaimed and is recycled according to different sources, realize industrial enterprise's wastewater zero discharge, realize recycle, the utility model is convenient to systematize, equipment, thereby floor space is significantly dwindled compared with traditional method.
For achieving the above object, the technical solution of the utility model is a kind of useless oil in water emulsion cryogenic separation system of design, comprises stoste input tube, interchanger, vaporizer, water-and-oil separator, condenser and odor eliminator;
Described vaporizer comprises heating chamber, evaporator room and moisture vapor transport pipe; In described heating chamber, be provided with heating tube, described heating chamber bottom is also provided with concentrated solution output tube, and described concentrated solution output tube is provided with valve; In described evaporator room, be provided with gas-liquid separator; Described moisture vapor transport pipe one end connects evaporator room, and the other end is connected to the input terminus of heating tube; The output terminal of described heating tube connects distilled water transfer lime; Described moisture vapor transport pipe is provided with vapour compressor;
Described stoste input tube runs through interchanger and is connected to the heating chamber of vaporizer;
Described distilled water transfer lime runs through interchanger and is connected to water-and-oil separator;
Described interchanger, for the heat exchange of stoste input tube and distilled water transfer lime;
Described water-and-oil separator is provided with distilled water output tube and oil exit pipe; Described oil exit pipe connects condenser and odor eliminator successively;
Described stoste input tube is provided with fresh feed pump and first flow control valve, and described first flow control valve is between interchanger and vaporizer; Described moisture vapor transport pipe is provided with second control valve, and described second control valve is between evaporator room and vapour compressor; Described distilled water transfer lime is provided with the 3rd flowrate control valve, and described the 3rd flowrate control valve is between interchanger and water-and-oil separator.
Preferably, described vapour compressor is a plurality of, on moisture vapor transport pipe, connects.
Preferably, described heating chamber bottom is also provided with scavenging solution input tube, and described scavenging solution input tube is provided with valve.
Preferably, described gas-liquid separator is spiral separator.
The water vapour of evaporator room output forms hyperthermal distilled water after heat exchange at heating chamber, hyperthermal distilled water is through interchanger and the heat exchange of low temperature stoste, after heat exchange, stoste becomes the interior evaporation of evaporator room that high temperature stoste enters vaporizer, distilled water after heat exchange enters oil removing in water-and-oil separator, distilled water directly reclaims after condenser and odor eliminator containing oil molecule, and gaseous emission is in atmosphere.Stoste after concentrated is discharged in vaporizer, after arrival setting-up time, vaporizer is cleaned by scavenging solution.
The utility model be for high density oily(waste)water realize industrial enterprise's wastewater zero discharge, realize the sharp weapon of recycle.
The utility model is that the mode based on pure physics is carried out gasification separation according to different liqs boiling point difference, because the utility model is convenient to systematize, thereby equipment floor space is significantly dwindled compared with traditional method, the utility model system is not added the pure physicsization of the whole technological process of any other chemical agent and is not produced secondary pollution, and utility model has certain cost advantage to high-COD waste water in addition.
The physics liquid separation technology that the utility model is is core based on MVR/MVC steam in compress technique and systematize industrial discharge solution, unmanageable contaminated liquid can by pure distillation be separated into distilled water and enriched material, conventionally distilled water can be used as process water reuse again, and enriched material is reclaimed and recycles according to different sources.The current consumption of current waste liquid per ton is 50～25 KWhs/ton, well below the level of like product in industry.
The utility model has following features:
Under vacuum condition, according to the difference of mixing liquid boiling point, trade effluent is carried out to separation.
Whole system is without extra dosing, and pure physics mode carries out separation and do not cause secondary pollution.
Optimization design based on to the heat-exchange system of system, the interchanger adopting at present can make energy consumption largely reduce.
The optimization design of spiral separator and the use of coating can make separating effect better.
Whole system can be realized unmanned, and equipmentization resettlement is set up.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
The concrete technical scheme of implementing of the utility model is:
As shown in Figure 1, a kind of useless oil in water emulsion cryogenic separation system, comprises stoste input tube 1, interchanger 2, vaporizer 3, water-and-oil separator 4, condenser 5 and odor eliminator 6;
Described vaporizer 3 comprises heating chamber 31, evaporator room 32 and moisture vapor transport pipe 33; In described heating chamber 31, be provided with heating tube 34, described heating chamber 31 bottoms are also provided with concentrated solution output tube 35, and described concentrated solution output tube 35 is provided with valve; In described evaporator room 32, be provided with gas-liquid separator; Described moisture vapor transport pipe 33 one end connect evaporator room 32, and the other end is connected to the input terminus of heating tube 34; The output terminal of described heating tube 34 connects distilled water transfer lime 36; Described moisture vapor transport pipe 33 is provided with vapour compressor 37;
Described stoste input tube 1 runs through interchanger 2 and is connected to the heating chamber 31 of vaporizer 3;
Described distilled water transfer lime 36 runs through interchanger 2 and is connected to water-and-oil separator 4;
Described interchanger 2, the heat exchange for stoste input tube 1 with distilled water transfer lime 36;
Described water-and-oil separator 4 is provided with distilled water output tube 41 and oil exit pipe 42; Described oil exit pipe 42 connects condenser 5 and odor eliminator 6 successively; Odor eliminator 6 is provided with venting port 61;
Described stoste input tube 1 is provided with fresh feed pump and first flow control valve 11, and described first flow control valve 11 is between interchanger 2 and vaporizer 3; Described moisture vapor transport pipe 33 is provided with second control valve 331, and described second control valve 331 is between evaporator room 32 and vapour compressor 37; Described distilled water transfer lime 36 is provided with the 3rd flowrate control valve 361, and described the 3rd flowrate control valve 361 is between interchanger 2 and water-and-oil separator 4.
Described heating chamber 31 bottoms are also provided with scavenging solution input tube 38, and described scavenging solution input tube 38 is provided with valve.
Described gas-liquid separator is spiral separator.
The water vapour of evaporator room 32 outputs forms hyperthermal distilled water at heating chamber 31 after heat exchange, hyperthermal distilled water is through interchanger 2 and the heat exchange of low temperature stoste, after heat exchange, stoste becomes the interior evaporation of evaporator room 32 that high temperature stoste enters vaporizer 3, distilled water after heat exchange enters the interior oil removing of water-and-oil separator 4, distilled water directly reclaims after condenser 5 and odor eliminator 6 containing oil molecule, and gaseous emission is in atmosphere.Stoste after concentrated, from the interior discharge of vaporizer 3, is cleaned by scavenging solution vaporizer 3 after arrival setting-up time.
Interchanger 2(preheater): a lot of situations, stoste to be evaporated temperature before entering vaporizer 3 is lower, in order to make full use of intrasystem heat energy, often adopts 2 pairs of stostes of shell and tube or plate-type heat exchanger to preheat.
Vapour compressor 37: it is the core component of MVR system, it is by secondary steam is compressed, and the heat content of secondary steam in raising system, for system provides steam continuously.According to characteristics such as the flow of stoste and boiling point elevation values, can select Roots or centrifugal vapour compressor 37.For the larger stoste of boiling point elevation value, vapour compressor 37 can use by plural serial stage.
Gas-liquid separator: it is that steam carries out separated device with concentrated liquid.For the stoste that has crystallization, separator and crystallizer can be designed to one, then install forced circulation pump additional, complete vapor-liquid separation, concentrate the function with crystallization.
Evaporator room 32(vapor heat exchanger 2): the source liquid after preheating is written into evaporator room 32 by fresh feed pump, carry out heat exchange with (being produced by vapour compressor 37) steam in heating tube 34, make its rapid vaporization.Can select according to the characteristic of stoste (whether viscosity has crystallization and fouling etc.) form of evaporator room 32.
Control center: adopt industrial computer and PLC to form the real-time Surveillance center of MVR series.By software programming, the status signal of the various sensors of Real-time Collection, thus automatically control rotating speed, valve closes and the adjusting of motor, the control of the flow velocity of liquid and flow, temperature and pressure and adjusting etc., make system works reach the state of running balance.This equipment also has automatic alarm, automatic recording parameters and the various functions of form are provided simultaneously.
The utility model is through permanent checking and experiment, distilled water after the distilled water of its concentrating and separating refilters can reach the strict European Emission standard of requirement, we take the assay that common waste emulsified mixture and releasing agent are done as example, for the distilled water COD after the analysis of casting mold-releasing agent single flash, reach 29-60mg/l (national standard is 150mg/l), COD attenuating rate to waste liquid meets or exceeds 98%, considerably beyond the COD reduction level of general distillation plant.
Native system is based on MVR technical research corresponding product and device, and MVR is that the English of " mechanical steam recompression " is called for short (Mechanical Vapor Recompression).Its ultimate principle is: the waste hot steam producing in evaporative process, by countercurrent washing and machinery recompression, is improved to degree of cleaning and the heat content of waste hot steam, re-use, reach energy-conservation and object environmental protection.MVR vaporizer (low temperature and pressure steam distillation) is most advanced vaporizer technology in the world at present, only has a few countries to grasp this technology.
The innovative point of MVR vaporizer:
(1) there is no waste hot steam discharge, energy-saving effect is very remarkable, is equivalent to multiple-effect evaporator.
(2) use this technology can realize the countercurrent washing to secondary steam, so water of condensation dry matter content is far below multiple-effect evaporator.
(3) adopt low-temperature negative-pressure evaporation (40-100 ℃), be conducive to prevent from being evaporated the high-temperature denatured of material.
(4) MVR vaporizer is the regeneration product of traditional multiple-effect falling film vaporizer, is by secondary steam countercurrent washing and recompression are re-used on the basis of single-effect evaporator.The material that all single-action and multiple-effect evaporator are applicable, is all applicable to adopting MVR vaporizer, has technically complete substitutability, and has better environmental protection and energy conservation characteristic.
The utility model processing data example in different industries is as shown in table 1.
Table 1 the utility model is processing data example in different industries
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. useless oil in water emulsion cryogenic separation system, is characterized in that, comprises stoste input tube, interchanger, vaporizer, water-and-oil separator, condenser and odor eliminator;
Described vaporizer comprises heating chamber, evaporator room and moisture vapor transport pipe; In described heating chamber, be provided with heating tube, described heating chamber bottom is also provided with concentrated solution output tube, and described concentrated solution output tube is provided with valve; In described evaporator room, be provided with gas-liquid separator; Described moisture vapor transport pipe one end connects evaporator room, and the other end is connected to the input terminus of heating tube; The output terminal of described heating tube connects distilled water transfer lime; Described moisture vapor transport pipe is provided with vapour compressor;
Described stoste input tube runs through interchanger and is connected to the heating chamber of vaporizer;
Described distilled water transfer lime runs through interchanger and is connected to water-and-oil separator;
Described interchanger, for the heat exchange of stoste input tube and distilled water transfer lime;
Described water-and-oil separator is provided with distilled water output tube and oil exit pipe; Described oil exit pipe connects condenser and odor eliminator successively;
Described stoste input tube is provided with fresh feed pump and first flow control valve, and described first flow control valve is between interchanger and vaporizer; Described moisture vapor transport pipe is provided with second control valve, and described second control valve is between evaporator room and vapour compressor; Described distilled water transfer lime is provided with the 3rd flowrate control valve, and described the 3rd flowrate control valve is between interchanger and water-and-oil separator.
2. useless oil in water emulsion cryogenic separation system according to claim 1, is characterized in that, described vapour compressor is a plurality of, on moisture vapor transport pipe, connects.
3. useless oil in water emulsion cryogenic separation system according to claim 2, is characterized in that, described heating chamber bottom is also provided with scavenging solution input tube, and described scavenging solution input tube is provided with valve.
4. useless oil in water emulsion cryogenic separation system according to claim 3, is characterized in that, described gas-liquid separator is spiral separator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420341833.XU CN203904135U (en) | 2014-06-25 | 2014-06-25 | Low-temperature separation system for waste emulsified oil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420341833.XU CN203904135U (en) | 2014-06-25 | 2014-06-25 | Low-temperature separation system for waste emulsified oil |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108822A (en) * | 2014-06-25 | 2014-10-22 | 苏州帝瀚环保科技有限公司 | Waste emulsified oil low-temperature separation system |
| CN105271589A (en) * | 2015-10-13 | 2016-01-27 | 南京常荣声学股份有限公司 | Waste-liquid zero-discharge processing apparatus and waste-liquid processing method |
| CN106430777A (en) * | 2016-10-17 | 2017-02-22 | 上海应用技术大学 | Oily sewage treatment device |
| CN107555693A (en) * | 2017-10-25 | 2018-01-09 | 江苏天航水处理有限公司 | A kind of emulsion waste liquid water oil piece-rate system |
| CN112387012A (en) * | 2019-08-13 | 2021-02-23 | 宝山钢铁股份有限公司 | Waste emulsion system of power station pulverized coal boiler and steam-water separation method thereof |
| CN118179055A (en) * | 2024-05-14 | 2024-06-14 | 长盛(廊坊)科技有限公司 | Treatment device and process method for carbon fiber precursor waste oil agent |
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2014
- 2014-06-25 CN CN201420341833.XU patent/CN203904135U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108822A (en) * | 2014-06-25 | 2014-10-22 | 苏州帝瀚环保科技有限公司 | Waste emulsified oil low-temperature separation system |
| CN104108822B (en) * | 2014-06-25 | 2016-05-25 | 苏州帝瀚环保科技股份有限公司 | Useless oil emulsion cryogenic separation system |
| CN105271589A (en) * | 2015-10-13 | 2016-01-27 | 南京常荣声学股份有限公司 | Waste-liquid zero-discharge processing apparatus and waste-liquid processing method |
| CN106430777A (en) * | 2016-10-17 | 2017-02-22 | 上海应用技术大学 | Oily sewage treatment device |
| CN107555693A (en) * | 2017-10-25 | 2018-01-09 | 江苏天航水处理有限公司 | A kind of emulsion waste liquid water oil piece-rate system |
| CN112387012A (en) * | 2019-08-13 | 2021-02-23 | 宝山钢铁股份有限公司 | Waste emulsion system of power station pulverized coal boiler and steam-water separation method thereof |
| CN118179055A (en) * | 2024-05-14 | 2024-06-14 | 长盛(廊坊)科技有限公司 | Treatment device and process method for carbon fiber precursor waste oil agent |
| CN118179055B (en) * | 2024-05-14 | 2024-08-06 | 长盛(廊坊)科技有限公司 | Treatment device and process method for carbon fiber precursor waste oil agent |
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