KR20150124508A - Apparatus for separating oil and water - Google Patents

Apparatus for separating oil and water

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Publication number
KR20150124508A
KR20150124508A KR1020140050729A KR20140050729A KR20150124508A KR 20150124508 A KR20150124508 A KR 20150124508A KR 1020140050729 A KR1020140050729 A KR 1020140050729A KR 20140050729 A KR20140050729 A KR 20140050729A KR 20150124508 A KR20150124508 A KR 20150124508A
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KR
South Korea
Prior art keywords
oil
water
tank
water tank
mixture
Prior art date
Application number
KR1020140050729A
Other languages
Korean (ko)
Inventor
안광민
Original Assignee
현대제철 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 현대제철 주식회사 filed Critical 현대제철 주식회사
Priority to KR1020140050729A priority Critical patent/KR20150124508A/en
Publication of KR20150124508A publication Critical patent/KR20150124508A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
    • 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

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Removal Of Floating Material (AREA)

Abstract

The invention related to an apparatus for separating oil and water is disclosed. According to the present invention, an apparatus for separating oil and water comprises: an oil and water tank for introducing an oil and water mixture containing oil and water through an inflow tube; an oil skimmer installed on the oil and water tank for separating and collecting oil from the oil and water mixture; and an oil storage tank for storing the oil separated and collected by the oil skimmer.

Description

[0001] APPARATUS FOR SEPARATING OIL AND WATER [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water separator, and more particularly, to a separator for separating oil and water from a sealing oil used in a blast furnace gas holder (BFG holder) Oil separator.

The blast furnace gas holder is a facility for maintaining the gas storage and pressure balance during blast furnace manufacturing in the blast furnace plant and sealing oil is used to prevent the gas from leaking between the piston constituting the blast furnace gas holder and the side wall of the gas holder .

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2004-0017402 (published on Feb.22, 2004, entitled "Sealing Apparatus for Gas Holder").

An object of the present invention is to provide an oil water separating apparatus capable of separating oil and water from a sealing oil used in a blast furnace gas holder and reusing the oil.

A water-oil separator according to the present invention comprises: a water tank in which a water-containing mixture containing oil and water flows through an inlet pipe; An oil skimmer installed in the water tank and separating and collecting the oil in the water mixture; And an oil storage tank for storing the oil separated and collected by the oil skimmer.

In the present invention, the water tank may include: a first water tank in which a water mixture flowing through the inlet pipe forms an oil layer and a water layer in an upper and lower portions by a specific gravity; A partition wall having a lower portion of the first water tank; And a second water tank separated from the first water tank by the partition wall and through which water flows into the water mixture in the first water tank through a lower portion of the partition wall.

In the present invention, the first water tank and the second water tank are filled with water up to a position where they are opened by the partition.

In the present invention, the first water tank is provided with a heater for heating the water-flow mixture.

In the present invention, a drain pipe for discharging water to the outside is installed in the lower part of the second water tank and the oil storage tank.

In the present invention, the oil skimmer may include: a belt conveyor installed in the first water tank for moving the oil adsorbed in the water mixture upward; A support plate installed on the belt conveyor; A knife slantingly installed on the support plate and contacting the belt of the belt conveyor to scrape the oil adsorbed on the belt; And an oil transfer pipe for transferring the oil flowing along the inclined surface of the knife to the oil storage tank.

In the present invention, the oil storage tank is provided with an oil pipe for transferring the collected oil to an oil tank, and at least one pump for transferring the oil of the oil pipe to the oil tank is installed in the oil pipe, A filter for filtering out the water is installed.

In the present invention, the oil storage tank is provided with an oil level sensor for sensing that the amount of oil stored is equal to or greater than a certain level.

The oil water separator according to the present invention can separate oil and water from the sealing oil used in the blast furnace gas holder and prevent oil from being discharged to the outside.

According to the present invention, it is possible to prevent oil from being discharged to the outside, thereby preventing environmental pollution.

According to the present invention, it is possible to separate the oil and water from the sealing oil, thereby reusing the oil and reducing the additional cost of using the oil.

1 is a perspective view schematically showing a water-oil separator according to an embodiment of the present invention.
2 is a front view schematically showing a state before operation of the water separation apparatus according to an embodiment of the present invention.
3 is a front view schematically showing a first operation state of the oil water separator according to an embodiment of the present invention.
4 is a front view schematically showing a second operation state of the water separation apparatus according to the embodiment of the present invention.
5 is a front view schematically showing a state after operation of the water separator according to an embodiment of the present invention.
6 is a front view schematically illustrating an oil skimmer according to an embodiment of the present invention.
7 is a partial enlarged view schematically showing "A" in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a water separation apparatus according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. Further, terms to be described below are defined in consideration of the functions of the present invention, which may vary according to the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view schematically showing a water separation apparatus according to an embodiment of the present invention, FIG. 2 is a front view schematically showing a state before operation of a water separation apparatus according to an embodiment of the present invention, 4 is a front view schematically showing a second operation state of the water separator according to the embodiment of the present invention, and FIG. 5 is a front view of the oil separator according to the embodiment of the present invention. FIG. 6 is a front view schematically showing an oil skimmer according to an embodiment of the present invention, and FIG. 7 is a front elevational view schematically showing an oil skimmer according to an embodiment of the present invention, Quot; A ".

Referring to FIG. 1, a water separation apparatus according to an embodiment of the present invention includes a water tank 10, an oil skimmer 20, and an oil storage tank 30.

The water tank 10 includes a first water tank 11, a second water tank 12, and a partition wall 13, which are connected to the first water tank 11, the second water tank 12, . The inlet pipe 15 is a pipe for collecting the sealing oil used in the blast gas holder (not shown) and introducing the sealing oil into the water tank 10. The recovered sealing oil is condensed by contact with the outside air to become a water-containing mixture containing oil and water.

The first water retention tank 11 is a space in which the water-flow mixture introduced through the inflow pipe 15 forms the oil layer and the water layer by the specific gravity. The oil skimmer 20 is installed in the first water tank 11 and the oil separated from the water in the oil-water mixture by the operation of the oil skimmer 20 is collected. The first water tank 11 is provided with a heater 14 for heating the water-flow mixture. The heater 14 heats the oil-water mixture to a predetermined temperature when the oil-water mixture is frozen through the inlet pipe 15, thereby making the oil and water in the oil-water mixture into a state of 0 ° C or higher, thereby facilitating the separation of oil and water.

The second water tank 12 is connected to the first water tank 11 so as to be opened to the lower side so that the water in the lower part of the first water tank 11 flows into the second water tank 12. A drain pipe (19) is installed in the lower part of the second water tank (12). When the valve of the drain pipe 19 is opened, the water in the second water tank 12 is collected in the drain tank 60. The water collected in the drain tank (60) can be filtered and discharged to the outside or recycled. A water level sensor 16 is installed on the sidewall of the second water tank 12 to sense that the water has a certain level difference. The water level sensor 16 transmits a signal to the control unit (not shown) if water does not reach the open part of the partition wall 13 in the second water tank 12, and the water level sensor 16 transmits the signal to the second water tank 12 The water is cooled to the portion where the partition 13 is opened.

The partition wall 13 separates the first water tank 11 and the second water tank 12 so that the lower portions of the first water tank 11 and the second water tank 12 are opened. Water having a specific gravity larger than that of oil in the water mixture is moved from the first water tank 11 to the second water tank 12 through the lower part of the opened partition 13.

Referring to FIG. 2, the first water tank 11 and the second water tank 12 are filled with water up to the open position of the partition 13. The oil in the upper layer of the water due to the specific gravity of the oil-water mixture is supplied to the first water tank 11 and the second water tank 12 by the partition wall 13 It can not pass to the second water tank 12 and remains in the first water tank 11.

Referring to FIG. 3, the water mixture is introduced into the first water tank 11 through the inlet pipe 15. The water level of the water-rich mixture in the first water tank 11 is increased, and the oil-water mixture containing oil and water is layered up and down by the difference in specific gravity. The water can be transferred to the second water tank 12 through the lower space of the partition wall 13 but the oil is blocked by the partition wall 13 and can not pass to the second water tank 12, .

3 and 4, the oil in the first water tank 11 is collected by the operation of the oil skimmer 20. That is, the oil remaining in the first water tank 11 is transferred to the oil storage tank 30 through the oil transfer pipe 24 by the operation of the oil skimmer 20.

Referring to FIG. 5, if there is more water than the predetermined amount in the second water tank 12, the water in the second water tank 12 is discharged to the outside by opening the water pipe 19. The size of the second water tank 12 is limited, so that water having a certain amount of accumulated water is discharged to the outside, and this water can be recycled as cooling water for other facilities. The water discharged through the drain pipe (19) collects in the drain tank (60). When the water in the second water tank 12 is discharged through the water pipe 19, the water in the first water tank 11 is also discharged through the lower part of the opened partition 13. At this time, the first water tank 11 and the second water tank 12 are detected by the water level sensor 16 so that the water level of the water does not decrease below a certain height. The water level sensor 16 senses that the water level of the water in the first water tank 11 and the second water tank 12 reaches the open position of the partition wall 13, Signal to close the valve before it drops below the position.

Referring to Figs. 6 and 7, the oil skimmer 20 is installed in the first water tank 11 of the water tank 1, and separates and collects the oil in the water mixture. The oil skimmer 20 comprises a belt conveyor 21, a support plate 22, a knife 23, and an oil transfer pipe 24. [

The belt conveyor 21 is provided with an upper pulley 21a and a lower pulley 21b respectively and the belt 21c is connected to the upper pulley 21a and the lower pulley 21b, And is moved by driving the pulley 21a and the lower pulley 21b. A cover (25) is provided on the upper side of the belt conveyor (21). The cover 25 closes the upper part of the upper pulley 21a and the belt 21c to block foreign substances such as dust from being adsorbed on the oil conveyed by the belt 21c.

The belt conveyor 21 is installed to be spaced apart from the bottom surface of the first water tank 11 so that the oil in the upper part of the water mixture forming the layer with oil and water in the first water tank 11 is moved upward . That is, the oil in the water mixture introduced into the first water tank 11 is adsorbed on the belt 21c and moved upward.

The support plate 22 is provided at a position adjacent to the belt conveyor 21 and the support plate 22 is provided with a knife 23.

The knife 23 is installed on the support plate 22 in an inclined manner and abuts on the belt 21c of the belt conveyor 21. [ The knife 23 is inclined so as to form an obtuse angle with the surface of the coming belt 21c. The knife 23 is brought into contact with the belt 21c to scrape the oil adsorbed on the rotating belt 21c to separate the oil from the belt 21c.

The oil transfer pipe 24 is located below the knife 23 and transfers the oil flowing along the inclined surface of the knife 23 to the oil storage tank 30.

The oil storage tank 30 stores oil that is separated and collected by the oil skimmer 20. The oil stored in the oil storage tank 30 flows into the oil storage tank 30 through the oil transfer pipe 24. The oil stored in the oil storage tank 30 flows into the oil tank 40 through the oil pipeline 24, 35).

The oil pump 35 is provided with a pump 50 for transferring the oil stored in the oil storage tank 30 to the oil tank 40. At least one pump 50 is installed in the oil pipeline 35. 1 and 2, the pump 50 is shown as an example of a main pump 51 and an auxiliary pump 52. The main pump 51 transfers the oil from the oil storage tank 30 to the oil tank 40 through the oil supply pipe 35. When an error occurs in the main pump 51, the auxiliary pump 52 is driven, (30) to the oil tank (40) through the oil passage (35). Therefore, even when an abnormality occurs in any one of the pumps 50, the other pump 50 can be driven to transfer the oil from the oil storage tank 30 to the oil tank 40.

The oil pipe 35 is provided with a filter 37 for removing foreign substances from the oil conveyed from the oil storage tank 30 to the oil tank 40. The filter 37 filters the oil to be transferred so that pure oil can be stored in the oil tank 40. The filter 37 used for a predetermined time is replaceably installed in the oil pipeline 35.

The oil storage tank 30 is provided with an oil level sensor 31 for detecting oil accumulated through the oil skimmer 20 at a predetermined height. The oil stored in the oil storage tank 30 is transferred to the oil tank 40 through the oil pipeline 35 by the signal detected by the oil level sensor 31. [ The oil level sensor 31 prevents accumulation of the oil in the oil storage tank 30 more than the oil capacity and transfers the oil accumulated in the oil tank 40 to the oil tank 40 for immediate recycling.

When water remaining in the oil collected in the oil skimmer 20 is present in the lower part of the oil storage tank 30, the water is positioned at the lower part due to the difference in specific gravity between the oil and the water. A drain pipe 39 connected to the drain tank 60 is installed below the oil storage tank 30. The water in the oil storage tank 30 is drained to the drain tank 60 by opening the valve of the drain pipe 39. In the present invention, each pipe or pipe is provided with a valve that can be opened or closed.

The operation of the present invention will be described as follows.

The sealing oil used in the blast furnace gas holder is introduced into the first water tank 11 through the inlet pipe 15. The outside air comes into contact with the sealing oil and condenses and becomes water. The sealing oil will contain condensed water, resulting in a water-based mixture comprising oil and water.

The oil in the water mixture is adsorbed on the belt 21c and transported in the upward direction by the operation of the oil skimmer 20 installed in the first water retention tank 11. The oil is scraped by the knife 23, The adsorbed oil is separated. The separated oil is transferred to the oil transfer pipe (24). The oil transfer pipe 24 is connected to the oil storage tank 30, and the collected oil is stored in the oil storage tank 30.

When the oil level sensor 31 detects that the oil stored in the oil storage tank 30 is accumulated to a predetermined level or more, the oil stored in the oil storage tank 30 flows through the oil supply pipe 35, And is transferred to the tank 40. At this time, the oil passing through the oil pipeline 35 is filtered by the filter 37.

The oil stored in the oil tank 40 is recycled as fuel for other equipment or sealing oil for blast furnace gas holders.

The water in the lower part of the second water tank 12 and the oil storage tank 30 is discharged to the drain tank 60 by opening the valves of the drain pipes 19 and 39.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined by the appended claims. will be. Accordingly, the true scope of the present invention should be determined by the following claims.

10: Water tank 11: First water tank
12: second water tank 13: partition wall
14: heater 15: inlet pipe
16: water level sensor 19: water pipe
20: Oil skimmer 21: Belt conveyor
21a: Upper pulley 21b: Lower pulley
21c: belt 22: support plate
23: Knife 24: Oil transfer pipe
25: Cover 30: Oil storage tank
31: Oil level sensor 35: Oil pipeline
37: filter 39: drain pipe
40: Oil tank 50: Pump
51: main pump 52: auxiliary pump
60: drainage tank

Claims (8)

A water tank in which a water-containing mixture containing oil and water flows through an inlet pipe;
An oil skimmer installed in the water tank and separating and collecting the oil in the water mixture; And
An oil storage tank for storing the oil separated and collected by the oil skimmer;
And an oil separator connected to the oil separator.
The method according to claim 1,
The water tank includes:
A first water tank in which the water-flowing mixture flowing through the inlet pipe forms an oil layer and an oil layer in an upper and a lower portion by a specific gravity;
A partition wall installed to open the lower part of the first water tank; And
A second water tank separated from the first water tank by the partition wall and through which water flows into the water mixture in the first water tank through a lower portion of the partition wall;
And an oil separator connected to the oil separator.
3. The method of claim 2,
Wherein the first water tank and the second water tank are filled with water to a position where they are opened by the partition.
3. The method of claim 2,
Wherein the first water tank is provided with a heater for heating the water mixture.
3. The method of claim 2,
And a drain pipe for discharging water to the outside is installed in the lower part of the second water tank and the oil storage tank.
3. The method of claim 2,
The oil skimmer,
A belt conveyor installed in the first water tank for moving the oil adsorbed in the water mixture upward;
A support plate installed on the belt conveyor;
A knife slantingly installed on the support plate and contacting the belt of the belt conveyor to scrape the oil adsorbed on the belt; And
An oil transfer pipe for transferring oil flowing along an inclined surface of the knife to the oil storage tank;
And an oil separator connected to the oil separator.
The method according to claim 1,
Wherein the oil storage tank is provided with an oil pipe for transferring the collected oil to the oil tank,
At least one pump for transferring the oil in the oil pipeline to the oil tank is installed in the oil pipeline,
Wherein the oil pipe is provided with a filter for filtering foreign substances in the oil.
The method according to claim 1,
Wherein the oil storage tank is provided with an oil level sensing sensor for sensing that the amount of oil stored becomes equal to or greater than a predetermined level.
KR1020140050729A 2014-04-28 2014-04-28 Apparatus for separating oil and water KR20150124508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140050729A KR20150124508A (en) 2014-04-28 2014-04-28 Apparatus for separating oil and water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140050729A KR20150124508A (en) 2014-04-28 2014-04-28 Apparatus for separating oil and water

Publications (1)

Publication Number Publication Date
KR20150124508A true KR20150124508A (en) 2015-11-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107617232A (en) * 2017-09-28 2018-01-23 江西清华泰豪三波电机有限公司 A kind of water-oil separating fluid reservoir
CN108661006A (en) * 2018-04-28 2018-10-16 浙江海洋大学 A kind of novel lifting anti-leak fire wall
KR20210009100A (en) * 2019-07-16 2021-01-26 박종경 Apparatus for separating water and oil with structure of extracting high concentrated oil liquid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107617232A (en) * 2017-09-28 2018-01-23 江西清华泰豪三波电机有限公司 A kind of water-oil separating fluid reservoir
CN108661006A (en) * 2018-04-28 2018-10-16 浙江海洋大学 A kind of novel lifting anti-leak fire wall
KR20210009100A (en) * 2019-07-16 2021-01-26 박종경 Apparatus for separating water and oil with structure of extracting high concentrated oil liquid

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