CN100467392C

CN100467392C - Multifunctional oil-water separator, and separation technique

Info

Publication number: CN100467392C
Application number: CNB200710019525XA
Authority: CN
Inventors: 强光初
Original assignee: YANGSHI GENERAL ENVIRONMENT PROTECTION EQUIPMENT PLANT WUXI CITY
Current assignee: Wuxi Jongoal Machinery Co., Ltd.
Priority date: 2007-01-08
Filing date: 2007-01-08
Publication date: 2009-03-11
Anticipated expiration: 2027-01-08
Also published as: CN101003398A

Abstract

This invention relates to apparatus and technique for treating wastewater, more specifically, a multifunctional oil-water separator and its separation technique. A first and a second chamber are set in the tank. A horizontal filter is set below the first chamber. Several parallel inclined plates are set in the horizontal filter. A residue discharge mouth is set below the horizontal filter. A raw water inlet is set on the horizontal filter. A passage is set above the first and the second chambers. Pipeline filter and adjuster are set on the passage. A filter core is set in the second chamber. A water outlet is connected with the filter core. After treated by this oil-water separator, the oil-containing wastewater has oil content reduced from 20000ppm to 15ppm. Besides, the oil-water separator has small floor area, and can utilize a wide variety of heat sources.

Description

Multifunctional oil-water separator

Technical field

The present invention relates to sewage disposal device and technology, specifically a kind of multifunctional oil-water separator and separating technology thereof.

Background technology

In the oily(waste)water that needs are handled, ubiquity solid impurity, adopt domestic traditional sloping plate deposition tower or prefilter to handle, machine connects complicated, floor space is big, and can only work independently, and also must increase pipeline valve when connecting with general water-and-oil separator, therefore, construction investment cost height.

The oil slick that exists in the oily(waste)water can be discharged from the machine top under interior pressure situation, but still exist oil-in-water, water in oil oil in water emulsion in the liquid, critical temperature according to profit, must increase the steam heating breakdown of emulsion, now the steam heating breakdown of emulsion equipment that uses both at home and abroad have equally that the machine volume is big, steam select strict, must special configuration and adjusting, can not carry out shortcomings such as solid and liquid separation.The vapour pipe of steam heater generally all designs growth coil tube type sample both at home and abroad, and institute takes up space big, heat passage inhomogeneous, heat transfer rate is slow.

Summary of the invention

The present invention is intended to address the above problem, and a kind of multifunctional oil-water separator is provided, utilize this water-and-oil separator to handle oily(waste)water after, oleaginousness in the water can be reduced to less than 15PPM from 20000PPM, and occupation area of equipment is little, can utilize the thermal source kind many, applied widely.

According to technical scheme provided by the invention, first chamber and second chamber are set in casing, it is characterized in that: the bottom in first chamber is provided with the flat flow strainer, the swash plate that is in tilted layout that in the flat flow strainer, has several to be parallel to each other, the cinder notch that runs in the bottom of flat flow strainer is provided with original water inlet on the flat flow strainer; Between the top of first chamber and second chamber, a passage is arranged, line strainer and setter are set on this passage, in second chamber, filter core is set, on filter core, connect water outlet.

The sewage draining exit that is provided for adding the heating unit of pyrogen water respectively and is used to get rid of the oil slick that swims in former layer waterborne at the top of first chamber and second chamber.

On sewage draining exit, connect drain line, connect oil-containing groove in the outer end of drain line.Filter core is divided into inside and outside two portions, and the outside is made by the polypropylene fibre silk floss, and inside is the CCF filter core.Water pump is set on casing, and the outlet of this water pump is connected with the sewage import.

The technology of utilizing multifunctional oil-water separator to separate oily(waste)water may further comprise the steps:

A, coarse filtration: former water enters the lower end of the flat flow strainer that is positioned at lower box under the pressure of water pump, passage between several swash plates in the flat flow strainer upwards flows again, utilizes the effect of swash plate to isolate impurity bigger in the former water and gets primary purification liquid;

B, an emulsification: the primary purification liquid that separates behind the impurity is heated to 80 ℃～85 ℃ by the heating unit that is positioned at casing top, gets secondary-cleaned liquid with the oil in water emulsion of isolating in the former water;

C, finly filtration: make the secondary-cleaned liquid that separates behind the oil in water emulsion enter the line strainer that is positioned at the casing middle part, filtering out the soft metal in the former water, three scavenging solutions;

D, second emulsifying: three scavenging solutions that will filter out the soft metal are handled through heating unit again, make the temperature of former water drop to 5 ℃～20 ℃, isolate oil in water emulsion once more, get four scavenging solutions;

E, smart filter: divide four scavenging solutions that filter behind the oil in water emulsion after setter is regulated water level, to enter in the filter core once more, utilize filter element filtering to fall less solid particulate and particulate oil, filter the water outlet of five scavenging solutions on filter core that the back obtains and discharge.

The invention has the beneficial effects as follows: 1, multifunctional oil-water separator gathers multi-function in integral whole, utilize physical means such as pedesis, steam heating, filtration, absorption handle and control water in oil and the content of mechanical impurity, can be widely used in the oily water separation of industries such as boats and ships, oil field, petrochemical industry, grease, airport, Surface Engineering degreasing, middle water reuse, the qualified discharge.2, the oleaginousness in the former water can be less than 15PPM from 20000PPM through handling, and can directly reclaim as process water and use.3, the vapour pipe of steam heater is designed to helical pattern, and compared with the long coil pipe style of generally using both at home and abroad, shared locus is littler, and is heat passage more even, quick.And steam heater can utilize waste heat and other steam and the thermal source work of engine, and the thermal source source is wide.4, can select the machine of different size according to the size of treatment capacity, be particularly useful for less places, space such as boats and ships.5, filter core adopts inside and outside two-layer structure, can be at first with thicker particulate blockage in cartridge surface, inner filter core just is not easy to stop up, and has improved the service efficiency of filter core, has saved running cost.6, whole flat flow swash plate is installed in the chamber, and does not have pipeline to be connected with valve, has saved machine volume and cost.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Wherein: 1, slag-drip opening, 2, water pump, 3, the flat flow swash plate, 4, steam heater, 5, strainer, 6, line strainer, 7, sewage draining exit, 8, setter, 9, drain line, 10, oil-containing groove, 11, water outlet.

Embodiment

As shown in the figure: first chamber and second chamber are set in casing, bottom in first chamber is provided with flat flow strainer 3, the swash plate that is in tilted layout that in flat flow strainer 3, has several to be parallel to each other, the cinder notch 1 that runs in the bottom of flat flow strainer 3 is provided with original water inlet on flat flow strainer 3; Between the top of first chamber and second chamber, a passage is arranged, line strainer 6 and setter 8 are set on this passage, filter core 5 is set in second chamber, on filter core 5, connect water outlet 11.

The sewage draining exit 7 that is provided for adding the heating unit 4 of pyrogen water respectively and is used to get rid of the oil slick that swims in former layer waterborne at the top of first chamber and second chamber.

On sewage draining exit 7, connect drain line 9, connect oil-containing groove 10 in the outer end of drain line 9.

Filter core 5 is divided into inside and outside two portions, and the outside is made by the polypropylene fibre silk floss, and aperture 5～10 μ m can adsorb thicker solid particulate; Inner is CCF filter core (seeing CN03135073.9), and the aperture is little of 0.2 μ m, can separating particles oil.Water pump 2 is set on casing, and the outlet of this water pump 2 is connected with the sewage import.

A, coarse filtration: former water enters the lower end of the flat flow strainer 3 that is positioned at lower box under the pressure of water pump 2, passage between several swash plates in the flat flow strainer 3 upwards flows again, utilize the effect of swash plate to isolate impurity bigger in the former water, get primary purification liquid;

B, an emulsification: the primary purification liquid that separates behind the impurity is heated to 80 ℃～85 ℃ by the heating unit 4 that is positioned at casing top, isolating the oil in water emulsion in the former water, secondary-cleaned liquid;

C, finly filtration: make the secondary-cleaned liquid that separates behind the oil in water emulsion enter the line strainer 6 that is positioned at the casing middle part, filtering out the soft metal in the former water, three scavenging solutions;

D, second emulsifying: three scavenging solutions that will filter out the soft metal are handled through heating unit 4 again, make the temperature of former water drop to 5 ℃～20 ℃, isolate oil in water emulsion once more, get four scavenging solutions;

E, smart filter: divide four scavenging solutions that filter behind the oil in water emulsion to enter in the filter core 5 after setter 8 is regulated water levels once more, utilize filter core 5 to filter out less solid particulate and particulate oil, the water outlet 11 of five scavenging solutions after the filtration on filter core 5 discharged.

Concrete working process is as follows: former water (oily(waste)water) enters flat flow swash plate 3 under the pressure effect of water pump 2, and through pedesis, the solid in the former water is deposited to the bottom of machine rapidly in flat flow swash plate 3, discharges machine by slag-drip opening 1.Low weight oil floats to the machine top on rapid under water pump 2 pressure, discharge through sewage draining exit 7, obtains primary purification liquid; Steam heater 4 through first chamber roof when this primary purification liquid flows through pipeline heats, oil in water emulsion in the liquid is by breakdown of emulsion, make separating of oil come out that is contained within originally in the water, isolated oil float is to the casing top, sewage draining exit 7 through being arranged at the casing top is discharged, and remaining is secondary-cleaned liquid; Secondary-cleaned liquid enters line strainer 6, and the soft metal in the secondary-cleaned liquid is filtered, and obtains scavenging solution three times; Three times scavenging solution heats breakdown of emulsion once more through the steam heater 4 of second chamber roof, and make the temperature of liquid adjusted simultaneously, the oil slick of breakdown of emulsion gained is discharged by sewage draining exit 7, obtain scavenging solution four times, four times scavenging solution enters setter 8 again, regulate the water level of liquid by setter 8, make oil slick just discharge and can not enter setter 8, and four scavenging solutions just enter setter 8 and can not enter sewage draining exit 7 from sewage draining exit 7.Four times scavenging solution enters filter core 5 from setter 8, and at first, thicker solid particulate is blocked in the superficies of filter core 5 in four scavenging solutions, all the other liquid enter filter core 5 inside, and in inside, thinner particle and particulate oil are adsorbed, obtain scavenging solution five times, five times scavenging solution is discharged through water outlet 11.Through above-mentioned purifying step, the water quality of five times last scavenging solutions of acquisition can be less than 15PPM, can directly be used as process water.

Claims

1, a kind of multifunctional oil-water separator, comprise and be arranged at intravital first chamber of case and second chamber, it is characterized in that: the bottom in first chamber is provided with flat flow strainer (3), the swash plate that is in tilted layout that in flat flow strainer (3), has several to be parallel to each other, the cinder notch (1) that runs in the bottom of flat flow strainer (3) is provided with original water inlet on flat flow strainer (3); Between the top of first chamber and second chamber, a passage is arranged, line strainer (6) and setter (8) are set on this passage, filter core (5) is set in second chamber, go up connection water outlet (11) at filter core (5); All be provided for adding the heating unit (4) of pyrogen water at the top of first chamber and second chamber and be used to get rid of the sewage draining exit (7) that swims in former waterborne layer oil slick.

2, multifunctional oil-water separator as claimed in claim 1 is characterized in that: go up connection drain line (9) at sewage draining exit (7), connect oil-containing groove (10) in the outer end of drain line (9).