CN212631845U

CN212631845U - Oil-water separation device for coking crude benzene vacuum oil

Info

Publication number: CN212631845U
Application number: CN202021328139.6U
Authority: CN
Inventors: 程常华; 蔡志锋
Original assignee: Qujing Shengkai Coking Co ltd
Current assignee: Qujing Shengkai Coking Co ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-03-02
Anticipated expiration: 2030-07-08

Abstract

The utility model discloses an oil-water separator for coking crude benzol emptying oil, including washing oil emptying groove and oil-water separation groove, oil-water separation groove includes cell body and capping, and the vertical interval in the bottom in the cell body is provided with first baffle and second baffle, and first baffle and second baffle separate into filter residue buffer zone, oil-water separation district and oil storage area with the space in the cell body, the vertical third baffle that is provided with in the filter residue buffer zone that is close to first baffle, are provided with the oil distributor in the oil-water separation district, and the oil distributor is including the circular arc section that connects gradually, vertical section and horizontal segment, and upper portion in the oil-water separation district is provided with oil absorption mechanism. In the process of oil-water separation, the device mainly depends on the physical adsorption characteristic of the oil absorption cotton, has short separation period, can finish oil-water separation operation without long standing time, has high working efficiency, has good separation effect due to the oleophylic and hydrophobic characteristics of the oil absorption cotton, and has remarkable economic value and social value.

Description

Oil-water separation device for coking crude benzene vacuum oil

Technical Field

The utility model relates to a coking equipment technical field, concretely relates to an oil-water separator for coking crude benzol emptying oil.

Background

In the process of producing and recovering crude benzene purified by coke oven gas in a coking plant, in order to store new wash oil from an oil depot, collect wash oil carried by the gas and discharged from an equipment pipeline, an oil-water separation device is generally arranged, and the wash oil is separated from water by utilizing the principles of different oil-water specific gravity, poor intersolubility and long-time standing, and then is respectively discharged to achieve the purpose of oil-water separation. However, the oil-water separation device has the following problems in the use process: wash the oil import and all set up at oil water separator's top usually, wash oil from the top from top to bottom form and spray the form and fall down, because powerful stirring effect, the fluctuation and the undulant too big of oil reservoir and water layer, can lead to wash oil and water that originally separated in the oil water separator to mix again, if the stationary time is short, wash oil can't realize thorough separation at all in oil water separator, can not realize continuous separation more, work efficiency is low, separation effect is poor, the aquatic oiliness that separates out is many, it is big to cause the wash oil to consume, the big problem of the waste water treatment degree of difficulty. Therefore, it is objectively needed to develop an oil-water separation device for coking crude benzene vacuum oil with short separation period, high working efficiency and good separation effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a separation cycle is short, and work efficiency is high, separates effectual an oil-water separator for coking crude benzol emptying oil.

The utility model aims to realize the method, which comprises a washing oil emptying groove and an oil-water separation groove, wherein the oil-water separation groove comprises a groove body and a groove cover, a first baffle plate and a second baffle plate are vertically arranged at the bottom in the groove body at intervals, the heights of the first baffle plate and the second baffle plate are both lower than the height of the groove body, the height of the first baffle plate is higher than the height of the second baffle plate, the space in the groove body is divided into a filter residue buffer area, an oil-water separation area and an oil storage area by the first baffle plate and the second baffle plate, a third baffle plate is vertically arranged in the filter residue buffer area close to the first baffle plate, the upper end of the third baffle plate is fixed on the groove cover, a circulation channel is left between the lower end of the third baffle plate and the bottom of the groove body, a plurality of supporting bars are arranged at intervals between the third baffle plate and the groove body, a filter frame is placed on the supporting bars, an emptying oil inlet pipe is arranged on the groove cover above the filter frame, the emptying oil, the emptying oil conveying pipe is provided with a first oil pump, the oil distribution device is arranged in the oil-water separation area and comprises an arc section, a vertical section and a transverse section which are sequentially connected, the arc section, the vertical section and the transverse section are all of a rectangular pipe structure, the oil inlet end of the arc section is fixed at the upper end of the first partition plate, the vertical section is tightly attached to the side face of the first partition plate, the transverse section is positioned at the bottom of the oil-water separation area, the oil outlet end of the transverse section is of a blocking structure, a plurality of oil outlet holes are uniformly processed at the top of the transverse section, a drain pipe is arranged at the bottom of the oil-water separation area close to the second partition plate, a drain valve is arranged on the drain pipe, the upper part in the oil-water separation area is provided with an oil absorption mechanism, the oil absorption mechanism comprises a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft which are arranged in parallel, the first rotating shaft and the second rotating, the both ends of first pivot and second pivot are all rotated and are connected on the cell body, the third pivot is located the top of oil storage area, the height that highly is higher than the second pivot of third pivot, fourth pivot and third pivot are the interval side by side and are set up, the one end of third pivot and fourth pivot is rotated and is connected on the cell body, the transmission is connected with actuating mechanism behind the other end stretches out the cell body, third pivot anticlockwise rotation, fourth pivot clockwise rotation, first pivot, be provided with the conveyer belt between second pivot and the third pivot, the surface upper berth of conveyer belt is equipped with the oil absorption cotton, spacing distance between fourth pivot and the third pivot is less than the thickness behind the oil absorption cotton oil absorption, the upper portion in oil storage area is provided with the oil drain port, the bottom is provided with the drain mouth.

Furthermore, the bottom of the tank body is obliquely arranged, the filter residue buffer area is located at the higher end of the bottom of the tank body, and the oil storage area is located at the lower end of the bottom of the tank body.

Furthermore, a communicating pipe is arranged at the bottom of the filter residue buffer area close to the first partition plate, the oil outlet end of the communicating pipe is communicated with the middle of the transverse section, and a communicating valve and a second oil pump are arranged on the communicating pipe.

Furthermore, an oil return pipe is arranged at the bottom of the filter residue buffer area, the end part of the oil return pipe is communicated with a drain pipe, and an oil return valve and an oil return pump are arranged on the oil return pipe.

Furthermore, observation windows are arranged on the tank bodies of the oil-water separation zone and the oil storage zone.

Furthermore, a plurality of oleophylic and hydrophobic plates are vertically arranged in the oil-water separation area between the transverse section and the oil absorption mechanism at intervals.

Furthermore, actuating mechanism includes the motor and sets up the driving gear on the motor output shaft, and the motor is installed on the outer wall of cell body, all is provided with a driven gear in the third pivot and the fourth pivot that lie in the cell body outside, two driven gear intermeshing, and the driving gear meshes with one of them driven gear mutually.

The utility model has the advantages that: when in operation, the coking crude benzene emptying oil enters the filtering buffer area of the device from the emptying oil inlet pipe, the emptying oil is filtered by the filtering frame to remove impurities and dirt mixed in the emptying oil, and due to the arrangement of the third partition plate, the emptying oil can be effectively separated from stirring the emptying oil in the groove body after entering the groove body, so that the emptying oil can slowly enter the oil distributor and is discharged from the oil outlet hole arranged on the transverse section of the oil distributor, the oil can continuously rise due to the difference of oil-water gravity, the water can continuously fall, when the oil is contacted with the oil absorption cotton of the oil absorption mechanism, the oil in the emptying oil can be continuously absorbed due to the characteristic that the oil absorption cotton has the property of absorbing oil and does not absorb water, the oil absorption cotton full of oil can continuously move under the driving of the conveyor belt, and when the oil absorption cotton reaches the third rotating shaft and the fourth rotating shaft, the oil absorbed in the oil absorption cotton can be extruded by the third rotating shaft and the fourth rotating shaft, and falls to the oil reservoir for storage. In the oil-water separation process, the device mainly depends on the physical adsorption characteristic of the oil absorption cotton, compared with the oil-water standing separation mode, the separation period is short, the oil-water separation operation can be completed without too long standing time, the whole treatment process can be continuously carried out, the working efficiency is high, and due to the oleophylic and hydrophobic characteristics of the oil absorption cotton, the water content in the finally separated oil is low, the separation effect is good, and the device has remarkable economic value and social value.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the oil-water separation tank of the present invention;

in the figure: 1-washing oil emptying groove, 2-groove body, 3-groove cover, 4-first clapboard, 5-second clapboard, 6-filter residue buffer zone, 7-oil-water separation zone, 8-oil storage zone, 9-third clapboard, 10-stay, 11-filter frame, 12-emptying oil inlet pipe, 13-emptying oil delivery pipe, 14-first oil pump, 15-arc segment, 16-vertical segment, 17-horizontal segment, 18-water discharge pipe, 19-first rotating shaft, 20-second rotating shaft, 21-third rotating shaft, 22-fourth rotating shaft, 23-conveyor belt, 24-oil absorption cotton, 25-oil discharge port, 26-oil discharge port, 27-communicating pipe, 28-oil return pipe, 29-observation window, 30-oleophylic hydrophobic plate, 31-motor, 32-driving gear, 33-driven gear.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited in any way, and any changes or improvements based on the present invention are all within the protection scope of the present invention.

As shown in figures 1-2, the utility model comprises a washing oil emptying tank 1 and an oil-water separation tank, the oil-water separation tank comprises a tank body 2 and a tank cover 3, a first baffle 4 and a second baffle 5 are vertically arranged at the bottom in the tank body 2 at intervals, the heights of the first baffle 4 and the second baffle 5 are both lower than the height of the tank body 2, the height of the first baffle 4 is higher than the height of the second baffle 5, the space in the tank body 2 is divided into a filter residue buffer zone 6, an oil-water separation zone 7 and an oil storage zone 8 by the first baffle 4 and the second baffle 5, a third baffle 9 is vertically arranged in the filter residue buffer zone 6 close to the first baffle 4, the upper end of the third baffle 9 is fixed on the tank cover 3, a circulation channel is left between the lower end and the bottom of the tank body 2, a plurality of braces 10 are arranged at intervals between the third baffle 9 and the tank body 2, a filter frame 11 is placed on the braces 10, an emptying oil inlet pipe 12 is arranged on the tank cover 3, the emptying oil inlet pipe 12 is communicated with the emptying port of the washing oil emptying groove 1 through an emptying oil conveying pipe 13, a first oil pump 14 is arranged on the emptying oil conveying pipe 13, an oil distributor is arranged in the oil-water separation zone 7 and comprises an arc section 15, a vertical section 16 and a transverse section 17 which are sequentially connected, the arc section 15, the vertical section 16 and the transverse section 17 are of rectangular pipe structures, the oil inlet end of the arc section 15 is fixed at the upper end of the first partition plate 4, the vertical section 16 is tightly attached to the side surface of the first partition plate 4, the transverse section 17 is positioned at the bottom of the oil-water separation zone 7, the oil outlet end of the transverse section 17 is of a plugging structure, a plurality of oil outlet holes are uniformly processed at the top of the transverse section 17, a drain pipe 18 is arranged at the bottom of the oil-water separation zone 7 close to the second partition plate 5, a drain valve is arranged on the drain pipe 18, an oil absorption mechanism is arranged at the upper part in, A second rotating shaft 20, a third rotating shaft 21 and a fourth rotating shaft 22, wherein the first rotating shaft 19 and the second rotating shaft 20 are positioned at the same height, the first rotating shaft 19 is positioned at a position close to the vertical section 16, the second rotating shaft 20 is positioned at a position close to the second partition plate 5, both ends of the first rotating shaft 19 and the second rotating shaft 20 are rotatably connected to the tank body 2, the third rotating shaft 21 is positioned above the oil storage area 8, the third rotating shaft 21 is higher than the second rotating shaft 20, the fourth rotating shaft 22 and the third rotating shaft 21 are arranged side by side at intervals, one ends of the third rotating shaft 21 and the fourth rotating shaft 22 are rotatably connected to the tank body 2, the other ends of the third rotating shaft 21 and the fourth rotating shaft 22 extend out of the tank body 2 and are connected with a driving mechanism in a transmission manner, the third rotating shaft 21 rotates counterclockwise, the fourth rotating shaft 22 rotates clockwise, a conveyor belt 23 is arranged between the first rotating shaft 19, the second rotating shaft 20, the oil absorption cotton 24 is the existing material, is made of oleophilic superfine fiber non-woven fabric, does not contain chemical agent, does not cause secondary pollution, can rapidly absorb liquid such as oil stain, organic solvent, hydrocarbon, vegetable oil and the like which are dozens of times of the weight of the oil absorption cotton, the spacing distance between the fourth rotating shaft 22 and the third rotating shaft 21 is smaller than the thickness of the oil absorption cotton 24 after oil absorption, the upper part of the oil storage area 8 is provided with an oil discharge port 25, the bottom is provided with a drain port 26, and the oil falling into the oil storage area 8 after extrusion possibly contains a small amount of moisture, after re-separation in the oil reservoir 8, the oil is discharged through the oil drain 25, the water sinks to the bottom and is discharged through the drain 26, secondly, when the oil-water separation operation of the emptying oil is finished, the oil in the oil storage area 8 can be completely discharged through the drain port 26, in order to balance the pressure in the oil-water separation tank, a vent may be provided in the tank cover 3 above the oil-water separation zone 7.

When the device is operated, crude benzene emptying oil in the washing oil emptying groove 1 enters the filtering buffer zone 6 of the device from an emptying oil inlet pipe 12 through an emptying oil delivery pipe 13, the emptying oil is filtered by a filtering frame 11 to remove impurities and dirt mixed in the emptying oil, and due to the arrangement of a third partition plate 9, the emptying oil can be effectively isolated from stirring the emptying oil in the groove body 2 after entering the groove body 2, so that the emptying oil can slightly enter the oil distributor, sequentially flows through the circular arc section 15, the vertical section 16 and the horizontal section 17 of the oil distributor, and is finally discharged from an oil outlet hole arranged on the horizontal section 17, because of the difference of oil-water gravity, the oil can continuously rise, the water can continuously fall, when the oil is contacted with the oil absorption cotton 24 of the oil absorption mechanism, the oil absorption cotton 24 in the emptying oil can continuously absorb the oil 24, and the oil absorption cotton 24 full of the oil can continuously move under the driving of the conveyor belt 23, when reaching the third rotating shaft 21 and the fourth rotating shaft 22, the oil is squeezed between the third rotating shaft 21 and the fourth rotating shaft 22, so that the oil adsorbed in the oil absorption cotton 24 is squeezed out and falls to the oil storage area 8 for storage. This device is at oil water separation's in-process, mainly relies on the physical adsorption characteristic of oil absorption cotton 24, compares the mode of profit separation of stewing, and the separation cycle is short, does not need too long stewing time to accomplish the oil water separation operation, and whole processing procedure can be continuous goes on, and work efficiency is high, and because the cotton 24 oleophylic hydrophobic characteristics of oil absorption, the water content is lower in the oil that finally the separation obtained, and separation effect is good.

In order to facilitate the drainage of oil or water in the tank body 2, the bottom of the tank body 2 is obliquely arranged, the filter residue buffer zone 6 is positioned at the higher end of the bottom of the tank body 2, and the oil storage zone 8 is positioned at the lower end of the bottom of the tank body 2.

Be provided with communicating pipe 27 in the filter residue buffer 6 bottom that is close to first baffle 4, the middle part intercommunication of the play oil end of communicating pipe 27 and horizontal segment 17 is provided with intercommunication valve and second oil pump on communicating pipe 27, after accomplishing the oil-water separation work of a blowdown oil, still can leave some blowdown oils that can't get into oil-water separation zone 7 in the filter residue buffer 6, at this moment, accessible communicating pipe 27 carries horizontal segment 17 with these blowdown oils, get into oil-water separation zone 7 from horizontal segment 17 and carry out oil-water separation work.

An oil return pipe 28 is arranged at the bottom of the filter residue buffer area 6, the end part of the oil return pipe 28 is communicated with the drain pipe 18, and an oil return valve and an oil return pump are arranged on the oil return pipe 28. After the oil-water separation of the emptied oil in the oil-water separation zone 7, the water is discharged from the drain pipe 18, but if the water still contains more oil, the water can be introduced into the residue buffer zone 6 through the oil return pipe 28, and the oil-water separation work is performed again.

In order to facilitate the real-time observation of the oil-water separation condition in the oil-water separation zone 7 and the mastering of the oil storage condition in the oil storage zone 8, observation windows 29 are arranged on the groove bodies of the oil-water separation zone 7 and the oil storage zone 8.

A plurality of oleophylic and hydrophobic plates 30 are vertically arranged in the oil-water separation zone 7 between the transverse section 17 and the oil absorption mechanism at intervals. The oleophylic and hydrophobic plate 30 is made of the existing oleophylic and hydrophobic material, so that oil drops can be gathered on the plate, and are continuously changed from small to large, absorption of the oil absorption cotton 24 is facilitated after rising, and the separation efficiency of oil-water separation is improved.

The driving mechanism comprises a motor 31 and a driving gear 32 arranged on an output shaft of the motor 31, the motor 31 is arranged on the outer wall of the tank body 2, a driven gear 33 is arranged on the third rotating shaft 21 and the fourth rotating shaft 22 which are positioned outside the tank body 2, the two driven gears 33 are meshed with each other, and the driving gear 32 is meshed with one of the driven gears 33. After the motor 31 is started, the driving gear 32 is driven to rotate, the driving gear 32 drives one of the driven gears 33 to rotate, the driven gear 33 drives the other driven gear 33 to rotate, the two driven gears 33 respectively drive the third rotating shaft 21 and the fourth rotating shaft 22 to rotate reversely at the same speed, the oil absorption cotton 24 can be extruded, and oil absorbed in the oil absorption cotton 24 is extruded.

Claims

1. The utility model provides an oil-water separator for coking crude benzol vacuum oil, includes wash oil vacuum chamber (1) and oil-water separation groove, its characterized in that: the oil-water separation tank comprises a tank body (2) and a tank cover (3), wherein a first partition plate (4) and a second partition plate (5) are vertically arranged at the bottom in the tank body (2) at intervals, the heights of the first partition plate (4) and the second partition plate (5) are lower than the height of the tank body (2), the height of the first partition plate (4) is higher than the height of the second partition plate (5), the space in the tank body (2) is divided into a filter residue buffer area (6), an oil-water separation area (7) and an oil storage area (8) by the first partition plate (4) and the second partition plate (5), a third partition plate (9) is vertically arranged in the filter residue buffer area (6) close to the first partition plate (4), the upper end of the third partition plate (9) is fixed on the tank cover (3), a circulation channel is reserved between the lower end and the bottom of the tank body (2), a plurality of supporting strips (10) are arranged between the third partition plate (9) and, the oil distributor is characterized in that a filter frame (11) is placed on a supporting bar (10), an emptying oil inlet pipe (12) is arranged on a groove cover (3) above the filter frame (11), the emptying oil inlet pipe (12) is communicated with an emptying port of a washing oil emptying groove (1) through an emptying oil conveying pipe (13), a first oil pump (14) is arranged on the emptying oil conveying pipe (13), an oil distributor is arranged in an oil-water separation area (7) and comprises an arc section (15), a vertical section (16) and a transverse section (17) which are sequentially connected, the arc section (15), the vertical section (16) and the transverse section (17) are all of a rectangular pipe structure, the oil inlet end of the arc section (15) is fixed at the upper end of a first partition plate (4), the vertical section (16) is tightly attached to the side surface of the first partition plate (4), the transverse section (17) is located at the bottom in the oil-water separation area (7), and the oil outlet end of the transverse section (17) is of a plugging structure, a plurality of oil outlets are uniformly processed at the top of the transverse section (17), a drain pipe (18) is arranged at the bottom of an oil-water separation area (7) close to the second partition plate (5), a drain valve is arranged on the drain pipe (18), an oil absorption mechanism is arranged at the upper part in the oil-water separation area (7), the oil absorption mechanism comprises a first rotating shaft (19), a second rotating shaft (20), a third rotating shaft (21) and a fourth rotating shaft (22) which are arranged in parallel, the first rotating shaft (19) and the second rotating shaft (20) are positioned at the same height, the first rotating shaft (19) is positioned at the position close to the vertical section (16), the second rotating shaft (20) is positioned at the position close to the second partition plate (5), the two ends of the first rotating shaft (19) and the second rotating shaft (20) are rotatably connected on the groove body (2), the third rotating shaft (21) is positioned above the oil storage area (8), and the height of the third rotating shaft (21) is higher than that of the second rotating shaft (, fourth pivot (22) and third pivot (21) are the interval setting side by side, the one end of third pivot (21) and fourth pivot (22) is rotated and is connected on cell body (2), and the other end stretches out cell body (2) back transmission and is connected with actuating mechanism, third pivot (21) anticlockwise rotation, fourth pivot (22) clockwise rotation, be provided with conveyer belt (23) between first pivot (19), second pivot (20) and third pivot (21), the surface upper berth of conveyer belt (23) is equipped with oil absorption cotton (24), and the spacing distance between fourth pivot (22) and third pivot (21) is less than the thickness behind oil absorption cotton (24) the oil absorption, the upper portion of oil storage district (8) is provided with oil drain port (25), and the bottom is provided with clean mouth of row (26).

2. The oil-water separation device for the coking crude benzene vacuum oil according to claim 1, characterized in that the bottom of the tank body (2) is obliquely arranged, the filter residue buffer area (6) is positioned at the higher end of the bottom of the tank body (2), and the oil storage area (8) is positioned at the lower end of the bottom of the tank body (2).

3. The oil-water separation device for the coking crude benzene vacuum oil according to claim 1, characterized in that a communicating pipe (27) is arranged at the bottom of the filter residue buffer area (6) close to the first partition plate (4), the oil outlet end of the communicating pipe (27) is communicated with the middle part of the transverse section (17), and a communicating valve and a second oil pump are arranged on the communicating pipe (27).

4. The oil-water separation device for the coking crude benzene emptying oil according to claim 1, characterized in that an oil return pipe (28) is arranged at the bottom of the filter residue buffer area (6), the end part of the oil return pipe (28) is communicated with a drain pipe (18), and an oil return valve and an oil return pump are arranged on the oil return pipe (28).

5. The oil-water separation device for the coking crude benzene vacuum oil according to claim 1, characterized in that observation windows (29) are arranged on the groove bodies of the oil-water separation zone (7) and the oil storage zone (8).

6. The oil-water separation device for the coking crude benzene vacuum oil according to claim 1, characterized in that a plurality of oleophilic and hydrophobic plates (30) are vertically arranged at intervals in the oil-water separation zone (7) between the transverse section (17) and the oil absorption mechanism.

7. The oil-water separation device for the coking crude benzene vacuum oil is characterized in that the driving mechanism comprises a motor (31) and a driving gear (32) arranged on an output shaft of the motor (31), the motor (31) is installed on the outer wall of the tank body (2), a driven gear (33) is arranged on a third rotating shaft (21) and a fourth rotating shaft (22) which are positioned outside the tank body (2), the two driven gears (33) are meshed with each other, and the driving gear (32) is meshed with one of the driven gears (33).