CN113045016B

CN113045016B - Multi-stage oil-water separation device for catering

Info

Publication number: CN113045016B
Application number: CN202110299873.7A
Authority: CN
Inventors: 王忠义; 王锦洋; 覃子珍; 宋天楚; 李宴儒; 邢馨予; 王松
Original assignee: Harbin Engineering University
Current assignee: Harbin Engineering University
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2022-11-01
Anticipated expiration: 2041-03-22
Also published as: CN113045016A

Abstract

The invention aims to provide a multi-stage oil-water separation device for catering, which comprises a box body, a double-layer shell and an oil outlet disc, wherein the lower half part of the box body is positioned in the double-layer shell, a spiral pipeline is arranged in the double-layer shell, a corrugated plate is arranged in the spiral pipeline, an inlet of the spiral pipeline is positioned at the top end of the spiral pipeline, an outlet of the spiral pipeline is positioned at the bottom end of the spiral pipeline, an oil outlet disc support frame is fixed on the inner wall of the box body, the oil outlet disc is arranged on the oil outlet disc support frame, the oil outlet disc is connected with an oil outlet pipe, the oil outlet pipe extends out of the box body, an oil scraping plate is arranged above the oil outlet disc and is connected with a motor, and a water outlet pipe is arranged on the side wall of the box body. The oil-water mixture is separated in the box body through two stages of centrifugal separation and gravity separation to obtain a better separation effect. In the cyclone separator, the corrugated plate is helpful for the oil phase to coalesce into large oil drops, thereby improving the secondary gravity separation effect. The orifice plate and the rectifying plate in the box improve the liquid flow stability in the box, and greatly enhance the stability of the floating oil layer.

Description

Multi-stage oil-water separation device for catering

Technical Field

The invention relates to a kitchen waste treatment device, in particular to an oil-water separation device.

Background

In recent years, with the annual increase of the discharge amount of kitchen waste, global kitchen waste treatment faces huge pressure, large-scale nonstandard waste treatment not only causes huge influence on the environment, but also has the risk that the kitchen waste oil is made into illegal cooking oil and flows into the market again, so that the oil-water separation device for catering has high application value. The current meal and drinking water oil-water separation device usually adopts vertical gravity separation, but because the separation efficiency is small and inferior to industrial horizontal gravity separation, a high-efficiency vertical oil-water separation device is urgently needed.

Disclosure of Invention

The invention aims to provide a multistage oil-water separation device for catering, which achieves multistage separation by utilizing two separation modes of centrifugal separation and gravity separation so as to improve the oil-water separation efficiency.

The purpose of the invention is realized as follows:

the invention relates to a multi-stage oil-water separation device for catering, which is characterized in that: the power distribution box comprises a box body, double-layer housing, go out the oil pan, the box lower half is located double-layer housing, be provided with the helical piping in the double-layer housing, set up the buckled plate in the helical piping, the import of helical piping is located its top, the export of helical piping is located its bottom, the inner wall of box is fixed with out the oil pan support frame, it installs on a food pan support frame to go out the oil pan, it connects out oil pipe to go out the oil pan, it stretches out to the box outside to go out the oil pipe, it sets up the frizing to go out the oil pan top, the motor is connected to the frizing, set up the outlet pipe on the box lateral wall.

The present invention may further comprise:

1. the lower end of the inner ring baffle of the box body is fixed with a pore plate, three round holes are formed in the pore plate, and the outlet of the spiral pipeline is located below the pore plate.

2. The middle part of the interior of the box body is fixed with a rectifying plate, and the surface of the rectifying plate is vertical to the water outlet pipe.

3. The oil outlet pipe is positioned above the water outlet pipe, the water outlet pipe is positioned at the height of the rectifying plate, and the oil outlet disc and the box body are coaxially arranged.

4. In the helical pipeline, three buckled plates constitute a set of, parallel arrangement between three buckled plates, and the buckled plate is arranged along helical line of helical pipeline.

The invention has the advantages that: the oil-water mixture is separated in the box body through two stages of centrifugal separation and gravity separation to obtain a better separation effect. In the cyclone separator, the corrugated plate is helpful for the oil phase to coalesce into large oil drops, and the secondary gravity separation effect is improved. The orifice plate and the rectifying plate in the box improve the liquid flow stability in the box, and greatly enhance the stability of the floating oil layer.

Drawings

FIG. 1 is a schematic view of the overall operation of the present invention;

FIG. 2 is a schematic view of the internal workings of the present invention;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a schematic view of the internal structure of the present invention (1);

FIG. 5 is a schematic view (2) of the internal structure of the present invention;

FIG. 6 is a schematic view of a cyclonic separator;

FIG. 7 is a schematic view of a corrugated plate in the cyclone separator;

FIG. 8 is a schematic view of an orifice plate in a tank.

Detailed Description

The invention will now be described in more detail by way of example with reference to the accompanying drawings in which:

referring to fig. 1-8, the invention provides a multi-stage oil-water separation device for catering, comprising: main tank 1, cyclone separator 2. The cyclone separator 2 is used for first-level centrifugal separation, and the main tank body 1 is used for second-level gravity separation.

The cyclone separator 2 is composed of a spiral pipeline 2.1 and a corrugated plate 2.2 and is arranged in a double-layer structure at the lower half part of the main box body 1. The corrugated sheets 2.2 are uniformly distributed in the pipe 2.1 along the spiral line of the spiral pipe. The incoming flow oil-water mixture enters the cyclone separator 2 through the inlet, and the oil-water mixture is subjected to primary centrifugal separation in the pipe. In addition, the corrugated plate 2.2 promotes the oil drops to be coalesced into large oil drops in the centrifugal separation process, and secondary gravity separation is facilitated. The orifice plate 1.2 welds in box 1.1 inner circle baffle lower extreme, and cowling panel 1.3 welds in box 1.1 middle part, and cowling panel 1.3 face is perpendicular with the delivery port. The oil outlet disc 1.5 and the box body 1.1 are coaxially arranged, the oil outlet pipe 1.4 is arranged at the lower end of the oil outlet disc 1.5, the oil outlet pipe 1.4 and the oil outlet disc 1.5 are supported and limited through an oil outlet disc support frame 1.6, and the oil outlet disc support frame 1.6 is connected with the barrel wall of the box body 1.1 through bolt connection. An oil scraping plate 1.7 is arranged at the upper end of the oil outlet disc 1.5, and the oil scraping plate 1.7 is driven by a motor 1.8.

The lower half part is a box body with a double-layer structure. The inner ring baffle ensures that the oil-water mixture is smooth in the main tank body, and is favorable for stably carrying out secondary gravity separation. The orifice plate 1.2 can balance the flow velocity of the oil-water mixture on the left side and the right side of the box body 1.1 to a certain degree, and is beneficial to more stably carrying out secondary gravity separation. The fairing plate 1.3 is arranged along the axial direction of the box body. The rectifying plate 1.3 can weaken the rotational flow of the oil-water mixture in the barrel, maintain the whole flow in the vertical direction and facilitate the two-stage gravity separation more stably. Each group has three corrugated plates 2.2, which are arranged in parallel in the spiral pipeline 2.1. The surface of the rectifying plate 1.3 is vertical to the water outlet, which is beneficial to the smooth discharge of the water phase. The orifice plate 1.2 is provided with three large-diameter round holes, and the resistance is low while the large-diameter round holes stably flow. An oil outlet disc 1.5 and an oil outlet pipe 1.4 in the box body are supported and limited by an oil outlet disc support frame 1.6.

The working process is as follows: the oil-water mixture enters the main tank body 1 through the cyclone separator 2, primary centrifugal separation is carried out in the cyclone separator 2, and small oil drops in the oil-water mixture are coalesced into large oil drops under the action of the corrugated plate 2.2. The oil-water mixture enters the main tank body 1 for secondary oil-water separation through primary centrifugal separation, and the inner hole plate 1.2 and the rectifying plate 1.3 in the tank body 1.1 have a stabilizing effect on liquid flow. The oil drips and floats on the surface of water and forms the oil slick layer, and when the oil slick layer reached oil dish 1.5 quotation height, the grease was scraped into oil dish 1.5 by frizing 1.7 and is flowed out through oil outlet pipe 1.4. The separated water phase flows out of the box body 1 through the water outlet pipe 3.

Claims

1. A multi-stage oil-water separation device for catering is characterized in that: the power distribution box comprises a box body, double-layer housing, go out the oil pan, the box lower half is located double-layer housing, be provided with the helical piping in the double-layer housing, set up the buckled plate in the helical piping, the import of helical piping is located its top, the export of helical piping is located its bottom, the inner wall of box is fixed with out the oil pan support frame, it installs on a food pan support frame to go out the oil pan, it connects out oil pipe to go out the oil pan, it stretches out to the box outside to go out the oil pipe, it sets up the frizing to go out the oil pan top, the motor is connected to the frizing, set up the outlet pipe on the box lateral wall.

2. The catering multistage oil-water separation device according to claim 1, which is characterized in that: the lower end of the inner ring baffle of the box body is fixed with a pore plate, three round holes are formed in the pore plate, and the outlet of the spiral pipeline is located below the pore plate.

3. The catering multistage oil-water separation device according to claim 1 or 2, which is characterized in that: the middle part of the interior of the box body is fixed with a rectifying plate, and the surface of the rectifying plate is vertical to the water outlet pipe.

4. The multi-stage oil-water separation device for catering according to claim 3, which is characterized in that: the oil outlet pipe is positioned above the water outlet pipe, the water outlet pipe is positioned at the height of the rectifying plate, and the oil outlet disc and the box body are coaxially arranged.

5. The multi-stage oil-water separation device for catering according to claim 1 or 2, which is characterized in that: in the helical pipeline, three buckled plates constitute a set of, parallel arrangement between three buckled plates, and the buckled plate is arranged along helical line of helical pipeline.

6. The multi-stage oil-water separation device for catering according to claim 3, which is characterized in that: in the helical pipeline, three buckled plates constitute a set of, parallel arrangement between three buckled plates, and the buckled plate is arranged along helical line of helical pipeline.

7. The catering multistage oil-water separation device according to claim 4, which is characterized in that: in the helical pipeline, three buckled plates constitute a set of, parallel arrangement between three buckled plates, and the buckled plate is arranged along helical line of helical pipeline.