CN113896281A - Oil cleaning device for sewage treatment oil separation tank - Google Patents
Oil cleaning device for sewage treatment oil separation tank Download PDFInfo
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- CN113896281A CN113896281A CN202110999441.7A CN202110999441A CN113896281A CN 113896281 A CN113896281 A CN 113896281A CN 202110999441 A CN202110999441 A CN 202110999441A CN 113896281 A CN113896281 A CN 113896281A
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- 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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- Hydrology & Water Resources (AREA)
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Abstract
The invention relates to an oil cleaning device for a sewage treatment oil separation tank, which solves the problems that in the prior art, oil cleaning is not thorough and water is easy to contain in oil content; the technical scheme includes that the device comprises an oil separation tank, a clean oil unit, an oil scraping plate, a water collecting tank and an oil storage tank, wherein the clean oil unit is positioned in the oil separation tank, an oil inlet is formed in the clean oil unit, the oil scraping plate is positioned in the oil separation tank below the clean oil unit, the left side and the right side of the oil scraping plate are respectively provided with one oil, the water collecting tank is positioned below the oil separation tank, a water-stop plate capable of moving up and down is arranged in the water collecting tank, the water-stop plate divides the water collecting tank into an upper independent chamber and a lower independent chamber, a water outlet of the oil separation tank is communicated with the chambers above the water-stop plate through a pipeline, the oil storage tank is positioned in the chambers above the oil separation plate and is communicated with the clean oil unit through an oil pipe, and the oil scraping plate is connected with the chambers below the water-stop plate through a gas pipeline; the invention has novel conception, smart structure and strong practicability.
Description
Technical Field
The invention relates to the field of sewage treatment machinery, in particular to an oil cleaning device for a sewage treatment oil separation tank.
Background
The existing oil-water separation (refer to fig. 1) generally utilizes the difference of specific gravity of suspended matters and water in the waste water to achieve the separation purpose. The structure of the oil separation tank adopts a horizontal flow mode mostly, oily wastewater enters the oil separation tank with a rectangular plane through a water distribution tank, slowly flows along the horizontal direction, an oil product floats on the water surface in the flow, and is pushed into an oil collecting pipe by an oil collecting pipe or an oil scraper arranged on the surface of the tank to flow into a dehydration tank; this method has the following problems: firstly, the oil amount collected is uncertain, so that the position of an oil discharge port cannot be accurately determined; secondly, if new mixed liquid is continuously injected during the working period of controlling the oil discharging liquid, the liquid level fluctuation is improved, the oil outlet can overflow into the water layer, and the separation is unclear, so that no liquid is injected during oil discharging, no oil is discharged during liquid injecting, and the oil-water separator does not work continuously; and finally: the thin oil layer is difficult to be completely discharged, or more water is brought out when less oil layers are discharged, secondary separation is needed, and the efficiency is low.
Disclosure of Invention
In view of the above situation, in order to solve the problems in the prior art, the present invention aims to provide an oil cleaning device for an oil separation tank for sewage treatment, which solves the problems in the prior art that oil cleaning is not thorough and oil content is easy to contain water.
The technical scheme for solving the problem is as follows: the oil separator comprises an oil separation tank, an oil cleaning unit, an oil scraping plate, a water collecting tank and an oil storage tank, wherein the oil cleaning unit is positioned in the oil separation tank and is close to the upper part of the oil separation tank, an oil inlet communicated with the oil separation tank is formed in the oil cleaning unit, the oil scraping plate is positioned in the oil separation tank below the oil cleaning unit, the left side and the right side of the oil scraping plate are respectively provided with one oil, the water collecting tank is positioned below the oil separation tank, a water-stop plate capable of moving up and down is arranged in the water collecting tank, the water collecting tank is divided into an upper independent cavity and a lower independent cavity by the water-stop plate, a water outlet of the oil separation tank is communicated with the cavities above the water-stop plate through a pipeline, the oil storage tank is positioned in the cavities above the oil separation plate and is communicated with the oil cleaning unit through an oil pipe, and the oil scraping plate is connected with the cavities below the water-stop plate through a gas pipeline; when water after filtering in the oil separating tank flows into the water collecting tank above the water stop plate through a pipeline, the water stop plate is moved downwards by the gravity of the water, the oil scraping plate is moved towards the direction close to each other, the oil scraping plate extrudes the oil above the oil separating tank to enter the clean oil unit, the oil entering the clean oil unit can be discharged into the oil storage tank after being deposited for many times, and the water stop plate can be discharged out of the water collecting tank after being moved downwards.
Preferably, the oil cleaning unit comprises an outer barrel, a middle barrel and an inner barrel, the outer barrel, the middle barrel and the inner barrel are coaxial and have vertical axes, the middle barrel is positioned between the outer barrel and the inner barrel, the oil inlet is arranged on the side wall of the outer barrel, a one-way valve is arranged at the oil inlet, an opening at the upper end of the middle barrel is spaced from the upper end surface of the outer barrel, an opening at the lower end of the inner barrel is spaced from the bottom of the middle barrel, a sleeve is arranged between the lower end of the middle barrel and the bottom wall of the outer barrel, a pipeline is arranged in the inner barrel, the upper end of the pipeline is higher than the lower end surface of the inner barrel and is spaced from the upper end surface of the inner barrel, an annular groove communicated with the sleeve is arranged on the lower end surface of the middle barrel, an oil separating film is arranged on the annular groove, an installation groove is arranged on the side wall of the outer barrel, and penetrates through the side wall of the outer barrel and is positioned above the one-way valve, an oil separation film is arranged in the mounting groove, water can flow out of the oil separation film, a liquid outlet communicated with the sleeve is formed in the lower end face of the outer barrel, and a check valve is arranged on the liquid outlet.
Preferably, a horizontal baffle is installed in the oil separation tank, the baffle is located above a feed inlet of the clear oil unit, the front side, the rear side, the left side and the right side of the baffle are in contact with the side wall of the oil separation tank, the oil scraping plate is located below the baffle, the upper end surface of the oil scraping plate is in contact with the lower end surface of the baffle, the oil scraping plate is in sliding connection with the baffle, the front side, the rear side and the side wall of the oil separation tank are in contact, and the lower end of the oil scraping plate is located below the oil inlet.
Preferably, two elastic plates which are placed in front and at the back are installed in the cavity below the water-stop plate, springs are installed on the elastic plates, and the cavity below the water-stop plate is divided into three cavities by the elastic plates; the chambers on the left and right sides are respectively provided with an n-shaped gas pipeline, the upper pipeline of the gas pipeline is horizontally arranged in the oil separation tank, a horizontal piston rod is arranged in the pipeline, and the tail end of the piston rod is connected with the oil scraping plate through a vertical rod.
Preferably, the water-stop sheet on install the apopore, install the plugging device that can reciprocate on the apopore, plugging device including installing in the apopore and the plugging plate that can reciprocate, the plugging plate is with the apopore shutoff when being located the apopore, plugging plate below be connected with a horizontally connecting plate through the montant, the connecting plate on set up the through-hole that link up the connecting plate from top to bottom, the connecting plate with the water-stop sheet between through spring coupling, the catch basin under install outlet conduit on the terminal surface, the catch basin under install vertical ejector pin on the terminal surface, water-stop sheet and catch basin between install overload device.
The device has the following advantages:
1, at oil-water separation's in-process, the upper oil content is scraped to the water yield control frizing through sewage treatment's intermittent type for in the oil content enters into the edible vegetable oil unit, can in time clear away the oil interceptor with the oil content on upper strata, prevent that the oil content too much from influencing the filter effect.
2, through setting up the edible vegetable oil unit, outer bucket to and the oil separating film on the outer bucket, can realize no matter how much the oil content, can both guarantee that the oil reservoir of top oozes into the well bucket gradually, when oozing into at every turn can both guarantee to enter into in the well bucket be the oil content of many times accumulations, the moisture that reduction oil content as far as possible contained.
3, in the process of oil-water separation, the oil scraping plate is controlled by the water yield of sewage treatment to scrape the upper oil component intermittently, so that the oil component enters the oil cleaning unit, and the upper oil component can be removed out of the oil separation tank in time; the control method does not need to consider the arrangement of the oil outlet position, does not need to stop when scraping oil, and can improve the efficiency.
Drawings
Fig. 1 is a prior art oil interceptor.
Fig. 2 is a front sectional view of the present invention in use.
Fig. 3 is a front sectional view of the water-stop sheet of the present invention after moving downward.
Fig. 4 is an enlarged front sectional view of an oil collecting chamber of the present invention.
Fig. 5 is an enlarged sectional top view of an oil collection chamber of the present invention.
Fig. 6 is a top sectional view a-a of fig. 2 of the present invention.
Fig. 7 is a partial enlarged view of the invention at a in fig. 2.
Fig. 8 is a partial enlarged view of the present invention at D in fig. 2.
Fig. 9 is a partial enlarged view of the present invention at B in fig. 3.
Fig. 10 is a partial enlarged view at C in fig. 3 according to the present invention.
Detailed Description
The following describes in further detail embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 10, the invention comprises an oil separation tank 1, a clean oil unit 2, an oil scraping plate 3, a water collecting tank 4 and an oil storage tank 5, wherein the clean oil unit 2 is positioned in the oil separation tank 1 and close to the upper part of the oil separation tank 1, an oil inlet 6 communicated with the oil separation tank 1 is arranged on the clean oil unit 2, the oil scraping plate 3 is positioned in the oil separation tank 1 below the clean oil unit 2, the left side and the right side of the oil scraping plate are respectively provided with one, the water collecting tank 4 is positioned below the oil separation tank 1, a water baffle 7 capable of moving up and down is arranged in the water collecting tank, the water collecting tank is divided into an upper independent cavity and a lower independent cavity by the water baffle 7, a water outlet of the oil separation tank 1 is communicated with the cavity above the water baffle 7 by a pipeline, the oil storage tank 5 is positioned in the cavity above the oil baffle and is communicated with the clean oil unit 2 by an oil pipe, the oil scraping plate 3 is connected with a chamber below the water-stop plate 7 through a gas pipeline 11; when water filtered in the oil separation tank 1 flows into the water collecting tank 4 above the water stop plate 7 through a pipeline, the water stop plate 7 moves downwards due to the gravity of the water, the oil scraping plate 3 moves towards the direction close to each other, the oil scraping plate 3 extrudes the oil above the oil separation tank 1 to enter the clean oil unit 2, the oil entering the clean oil unit 2 can be discharged into the oil storage tank 5 after being deposited for many times, and the water stop plate 7 can discharge the water in the water collecting tank 4 after moving downwards.
In order to realize that the clean oil unit 2 can discharge the oil above the oil separation pool 1 after being precipitated for a plurality of times, the clean oil unit 2 comprises an outer barrel 201, a middle barrel 202 and an inner barrel 203, the outer barrel 201, the middle barrel 202 and the inner barrel 203 are coaxial and have vertical axes, the middle barrel 202 is positioned between the outer barrel 201 and the inner barrel 203, the oil inlet 6 is arranged on the side wall of the outer barrel 201, the oil inlet 6 is provided with a one-way valve, the upper end of the middle barrel 202 is opened and is spaced from the upper end surface of the outer barrel 201, the lower end of the inner barrel 203 is opened and is spaced from the bottom of the middle barrel 202, a sleeve 204 is arranged between the lower end of the middle barrel 202 and the bottom wall of the outer barrel 201, a pipeline is arranged in the inner barrel 203, the upper end of the pipeline is higher than the lower end surface of the inner barrel 203 and is spaced from the upper end surface of the inner barrel 203, the lower end surface of the middle barrel 202 is provided with an annular groove 205 communicated with the sleeve 204, an oil separating film 206 is arranged on the annular groove 205, a mounting groove 207 is formed in the side wall of the outer barrel 201, the mounting groove 207 penetrates through the side wall of the outer barrel 201 and is positioned above the one-way valve, the oil separating film 206 is arranged in the mounting groove 207, water can flow out of the oil separating film 206, a liquid outlet 208 communicated with the sleeve 204 is formed in the lower end face of the outer barrel 201, and the one-way valve is arranged on the liquid outlet 208; the oil above the oil separation pool 1 continuously enters the outer barrel 201, water is contained in the oil, but the oil floats to the upper layer due to low density of the oil, the water flows out through the oil separation membrane 206, and the oil layer above gradually overflows into the middle barrel 202 due to the fact that the water inlet of the outer barrel 201 is close to the lower part, when the high end of the oil in the outer barrel 201 and the uppermost end of the middle barrel 202 are located on the same horizontal plane, the oil enters from the lower part when the oil enters into the outer barrel 201 for the last time, and the oil accumulated for multiple times can be guaranteed to enter into the middle barrel 202 when the oil flows into the middle barrel 202 every time; when the height of the oil in the outer barrel 201 is the same as the uppermost end of the middle barrel 202, the oil scraper 3 can make the oil at the uppermost end of the outer barrel 201 enter the middle barrel 202 each time, even if part of the water entering the middle barrel 202 flows out from the oil separating film 206 below the outer barrel 201, and when the height of the oil in the middle barrel 202 is the same as the top end of the pipeline, a siphon effect is generated, so that the oil in the inner barrel 203 is completely discharged; therefore, the oil and water in the clear oil unit 2 are discharged after being precipitated for multiple times.
In order to realize that when the oil scraping plate 3 moves left and right, the oil in the oil separation tank 1 can be squeezed into the clean oil unit 2, a horizontal baffle plate 9 is installed in the oil separation tank 1, the baffle plate 9 is positioned above a feed inlet of the clean oil unit 2, the front, rear, left and right side surfaces of the baffle plate 9 are contacted with the side wall of the oil separation tank 1, the oil scraping plate 3 is positioned below the baffle plate 9, the upper end surface of the oil scraping plate 3 is contacted with the lower end surface of the baffle plate 9, the oil scraping plate 3 is in sliding connection with the baffle plate 9, the front and rear side surfaces of the oil scraping plate 3 are contacted with the side wall of the oil separation tank 1, the lower end of the oil scraping plate 3 is positioned below the oil inlet 6, when the oil scraping plate 3 moves towards the direction close to each other, the oil scraping plate 3 can squeeze the oil above the oil separation tank 1, so that the oil enters the edible oil unit 2.
In order to realize the up-and-down movement of the water-stop plate 7 and the horizontal movement of the oil scraping plate 3, two elastic plates 10 which are placed in front and at the back are installed in a cavity below the water-stop plate 7, springs are installed on the elastic plates 10, and the cavity below the water-stop plate 7 is divided into three cavities by the elastic plates 10; the chambers at the left side and the right side are respectively provided with an n-shaped gas pipeline 11, the pipeline at the upper side of the gas pipeline 11 is horizontally positioned in the oil separation tank 1, a horizontal piston rod 12 is arranged in the pipeline, and the tail end of the piston rod 12 is connected with the oil scraping plate 3 through a vertical rod 13; when the water stop sheet 7 moves downwards, the lower chamber is squeezed, so that the air pressure of the lower chamber is increased, the piston rod 12 is pushed by the air pressure to move towards the direction of mutual approach, and the piston rod 12 drives the oil scraping plate 3 to move towards the direction of mutual approach.
In order to realize that after the water stop sheet 7 moves downwards, the water in the cavity above the water stop sheet 7 can be discharged, the water stop sheet 7 is provided with a water outlet hole 701, a plugging device capable of moving up and down is arranged on the water outlet hole 701, the plugging device comprises a plugging plate 702 which is arranged in the water outlet hole 701 and can move up and down, the water outlet hole 701 is plugged when the plugging plate 702 is positioned in the water outlet hole 701, the lower part of the plugging plate 702 is connected with a horizontal connecting plate 703 through a vertical rod 13, the connecting plate 703 is provided with a through hole 704 which vertically penetrates through the connecting plate 703, the connecting plate 703 is connected with the water stop sheet 7 through a spring, the lower end face of the water collecting tank 4 is provided with a water outlet pipeline, the lower end face of the water collecting tank 4 is provided with a vertical push rod, an overload device 705 is arranged between the water stop sheet 7 and the water collecting tank 4, and when the water stop sheet 7 moves downwards to the lowest end of the displacement, the water-stop sheet 7 is fixed by the overload device, meanwhile, the ejector rod 705 pushes the connecting plate 703 to move upwards, meanwhile, the plugging plate 702 moves upwards to open the water outlet hole 701, water above the water-stop sheet 7 flows out through the water outlet hole 701, and after water flow above the water-stop sheet 7 is completed, the spring on the elastic plate 10 drives the water-stop sheet 7 to break through the overload and move upwards to reset.
In order to realize when water-stop sheet 7 moves down its displacement lower extreme, the position of the fixed water-stop sheet 7 of fixing device, water-stop sheet 7 including installing dowel 14 on the lateral wall of water-stop sheet 7, dowel 14 can water-stop sheet 7 on horizontal migration, locating pin and water-stop sheet 7 between install the spring, the lateral wall of catch basin 4 on offer with dowel 14 complex positioning groove 15, when water-stop sheet 7 moves down its displacement lower extreme, dowel 14 be located positioning groove 15, water-stop sheet 7's position is fixed.
When the device is used:
sewage enters a box body from an oil inlet 6 of an oil separation tank 1, the structure of the oil separation tank 1 is shown in figure 1 and comprises an inlet partition plate 16, a partition plate 17 and an outlet partition plate 17, the flowing mode of water in the box body is shown in figure 1, the sewage passes through the oil separation tank 1, so that oil is floated above the sewage, and the treated water flows out from a water outlet; as shown in fig. 3, the treated water flows into the water collecting tank 4 from the water outlet, and drives the water-stop sheet 7 to move downwards, the water-stop sheet 7 moves downwards to compress the chamber below, the air pressure in the chamber below increases to push the piston rod 12 to move towards the direction close to each other through the air pipe 11, the piston rod 12 is provided with a spring, the spring is pulled to deform, the oil scraping sheet 3 moves towards the direction close to each other, and the oil scraping sheet 3 makes the oil layer above enter the clear oil unit 2 through the one-way valve on the side wall of the outer barrel 201.
When the water-stop sheet 7 moves downwards to the lowest end of the displacement, the water-stop sheet 7 is fixed by the overload device, the ejector rod 705 pushes the connecting plate 703 to move upwards, the plugging plate 702 moves upwards to open the water outlet hole 701, water above the water-stop sheet 7 flows out through the water outlet hole 701, and after the water above the water-stop sheet 7 is completely flowed, the spring on the elastic plate 10 drives the water-stop sheet 7 to break through the overload and move upwards for resetting; in the process that the water stop sheet 7 moves upwards, the volume in the chambers on the left side and the right side is increased, the pressure intensity is reduced, and the piston rod 12 drives the oil scraping plate 3 to move and reset towards the direction away from each other under the action of the spring of the piston rod 12;
the water passes through the water collecting tank 4 continuously and drives the water-stop sheet 7 to move up and down in such a reciprocating way, so that the oil scraping plate 3 moves inside and outside, and the upper-layer oil is extruded into the clear oil unit 2; from this, at oil-water separation's in-process, the upper oil content is scraped to the play water content control frizing 3 interval through sewage treatment for in the oil content enters into edible vegetable oil unit 2, can in time clear away the oil content on upper strata and go out oil interceptor 1, prevent that the oil content is too much to influence the filter effect.
The oil in the clean oil unit 2 is more and more accumulated, when the oil enters the clean oil unit 2, the oil contains water, but because the density of the oil is lower, the oil can float to the upper layer, the water can flow out through the oil separating film 206, and because the water inlet of the outer barrel 201 is close to the lower part, when the high end of the oil in the outer barrel 201 is the same as the uppermost end of the middle barrel 202, the oil enters from the lower part when the latest oil enters the outer barrel 201, the oil layer above the oil gradually overflows into the middle barrel 202, and the oil accumulated for multiple times can be ensured to enter the middle barrel 202 when the oil overflows each time; therefore, in the process of oil-water separation, the oil scraping plate 3 is controlled to scrape the upper oil component intermittently by the water outlet quantity of sewage treatment, so that the oil component enters the clear oil unit 2, and the upper oil component can be removed out of the oil separation tank 1 in time; the control method does not need to consider the arrangement of the oil outlet position, does not stop when scraping oil, and can improve the efficiency.
When the height of the oil in the outer barrel 201 is the same as the uppermost end of the middle barrel 202, the oil scraper 3 can make the oil at the uppermost end of the outer barrel 201 enter the middle barrel 202 each time, even if part of the water entering the middle barrel 202 flows out from the oil separating film 206 below the outer barrel 201, and when the height of the oil in the middle barrel 202 is the same as the top end of the pipeline, a siphon effect is generated, so that the oil in the inner barrel 203 is completely discharged; through setting up edible vegetable oil unit 2, outer bucket 201 to and the oil separating film 206 on outer bucket 201, can realize no matter how much the oil content, can both guarantee that the oil reservoir of top oozes into well bucket 202 gradually, it is the oil content of many times accumulations to all can guarantee to enter into well bucket 202 when oozing into at every turn, the moisture that reduction oil content contains as far as possible.
Claims (6)
1. The oil cleaning device for the sewage treatment oil separation tank is characterized by comprising an oil separation tank (1), an oil cleaning unit (2), an oil scraping plate (3), a water collecting tank (4) and an oil storage tank (5), wherein the oil cleaning unit (2) is positioned in the oil separation tank (1) and is close to the upper part of the oil separation tank (1), the oil cleaning unit (2) is provided with an oil inlet (6) communicated with the oil separation tank (1), the oil scraping plate (3) is positioned in the oil separation tank (1) below the oil cleaning unit (2) and is respectively provided with one on the left side and the right side, the water collecting tank (4) is positioned below the oil separation tank (1), the water collecting tank is internally provided with a water baffle (7) capable of moving up and down, the water baffle (7) divides the water collecting tank into an upper independent cavity and a lower independent cavity, a water outlet of the oil separation tank (1) is communicated with the cavities above the water baffle (7) through a pipeline, the oil storage tank (5) is positioned in a cavity above the oil separation plate and is communicated with the clear oil unit (2) through an oil pipe, and the oil scraping plate (3) is connected with the cavity below the water separation plate (7) through a gas pipeline (11); when water after filtering flows into in the catch basin (4) of water-stop sheet (7) top in oil interceptor (1) through the pipeline, the gravity of water makes water-stop sheet (7) downstream, makes frizing plate (3) remove to the direction that is close to each other simultaneously, and frizing plate (3) extrusion oil interceptor (1) top oil enters into edible vegetable oil unit (2), and the oil that enters into edible vegetable oil unit (2) can be discharged after deposiing many times in oil storage tank (5), water-stop sheet (7) downstream after, can discharge the water in catch basin (4).
2. The oil cleaning device for the sewage treatment oil separation tank according to claim 1, wherein the oil cleaning unit (2) comprises an outer barrel (201), a middle barrel (202) and an inner barrel (203), the outer barrel (201), the middle barrel (202) and the inner barrel (203) are coaxial and have vertical axes, the middle barrel (202) is positioned between the outer barrel (201) and the inner barrel (203), the oil inlet (6) is arranged on the side wall of the outer barrel (201), a one-way valve is arranged at the position of the oil inlet (6), the upper end of the middle barrel (202) is opened and has a space with the upper end surface of the outer barrel (201), the lower end of the inner barrel (203) is opened and has a space with the bottom of the middle barrel (202), a sleeve (204) is arranged between the lower end of the middle barrel (202) and the bottom wall of the outer barrel (201), and a pipeline is arranged in the inner barrel (203), the upper end of the pipeline is higher than the lower end face of the inner barrel (203) and is spaced from the upper end face of the inner barrel (203), the lower end face of the middle barrel (202) is provided with an annular groove (205) communicated with the sleeve (204), an oil separating film (206) is installed on the annular groove (205), the side wall of the outer barrel (201) is provided with an installation groove (207), the installation groove (207) penetrates through the side wall of the outer barrel (201) and is positioned above the one-way valve, the oil separating film (206) is installed in the installation groove (207), moisture can flow out from the oil separating film (206), the lower end face of the outer barrel (201) is provided with a liquid outlet (208) communicated with the sleeve (204), and the liquid outlet (208) is provided with the one-way valve.
3. The oil cleaning device for the sewage treatment oil separation tank according to claim 1, wherein a horizontal baffle (9) is installed in the oil separation tank (1), the baffle (9) is located above a feed inlet of the oil cleaning unit (2), the front side, the rear side, the left side and the right side of the baffle (9) are in contact with the side wall of the oil separation tank (1), the oil scraping plate (3) is located below the baffle (9), the upper end surface of the oil scraping plate (3) is in contact with the lower end surface of the baffle (9), the oil scraping plate (3) is in sliding connection with the baffle (9), the front side and the rear side of the oil scraping plate (3) are in contact with the side wall of the oil separation tank (1), and the lower end of the oil scraping plate (3) is located below the oil inlet (6).
4. The oil cleaning device for the sewage treatment oil separation tank according to claim 1, wherein two elastic plates (10) which are placed in front and at the back are arranged in the chamber below the water-stop plate (7), a spring is arranged on each elastic plate (10), and the chamber below the water-stop plate (7) is divided into three chambers by the elastic plates (10); the chambers on the left side and the right side are respectively provided with an n-shaped gas pipeline (11), the upper side pipeline of the gas pipeline (11) is horizontally arranged in the oil separation tank (1) and a horizontal piston rod (12) is arranged in the pipeline, and the tail end of the piston rod (12) is connected with the oil scraping plate (3) through a vertical rod (13).
5. The oil cleaning device for the sewage treatment oil separation tank according to claim 1, wherein the water-stop plate (7) is provided with a water outlet hole (701), the water outlet hole (701) is provided with a plugging device capable of moving up and down, the plugging device comprises a plugging plate (702) which is arranged in the water outlet hole (701) and capable of moving up and down, the water outlet hole (701) is plugged when the plugging plate (702) is positioned in the water outlet hole (701), the lower part of the plugging plate (702) is connected with a horizontal connecting plate (703) through a vertical rod (13), the connecting plate (703) is provided with a through hole (704) which vertically penetrates through the connecting plate (703), the connecting plate (703) is connected with the water-stop plate (7) through a spring, the lower end face of the water collection tank (4) is provided with a water outlet pipeline, the lower end face of the water collection tank (4) is provided with a vertical push rod (705), and an overload device is arranged between the water-stop sheet (7) and the water collecting tank (4).
6. The oil cleaning device for the sewage treatment oil separation tank according to claim 1, wherein the fixing device fixes the position of the water stop plate (7), the water stop plate (7) comprises a positioning pin (14) installed on the side wall of the water stop plate (7), the positioning pin (14) can horizontally move on the water stop plate (7), a spring is installed between the positioning pin and the water stop plate (7), and a positioning groove (15) matched with the positioning pin (14) is formed in the side wall of the water collection tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110999441.7A CN113896281A (en) | 2021-08-29 | 2021-08-29 | Oil cleaning device for sewage treatment oil separation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110999441.7A CN113896281A (en) | 2021-08-29 | 2021-08-29 | Oil cleaning device for sewage treatment oil separation tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113896281A true CN113896281A (en) | 2022-01-07 |
Family
ID=79188000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110999441.7A Withdrawn CN113896281A (en) | 2021-08-29 | 2021-08-29 | Oil cleaning device for sewage treatment oil separation tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113896281A (en) |
-
2021
- 2021-08-29 CN CN202110999441.7A patent/CN113896281A/en not_active Withdrawn
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Application publication date: 20220107 |
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