CN113511703A - Multistage edible vegetable oil device of oil interceptor of sewage treatment - Google Patents
Multistage edible vegetable oil device of oil interceptor of sewage treatment Download PDFInfo
- Publication number
- CN113511703A CN113511703A CN202110999425.8A CN202110999425A CN113511703A CN 113511703 A CN113511703 A CN 113511703A CN 202110999425 A CN202110999425 A CN 202110999425A CN 113511703 A CN113511703 A CN 113511703A
- Authority
- CN
- China
- Prior art keywords
- oil
- water
- plate
- tank
- separation tank
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
-
- 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
- B01D17/0208—Separation of non-miscible liquids by sedimentation
-
- 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
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- 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 relates to a multistage clear oil device of an oil separation tank for sewage treatment, which solves the problems that clear oil is not thorough and water is easy to contain in oil in the prior art; the technical scheme includes that the device comprises an oil separation tank, a primary oil filtering unit, an oil scraping plate, a water collecting tank and a secondary oil filtering unit, wherein the primary oil filtering unit is located in the oil separation tank and close to the upper side of the oil separation tank, the oil scraping plate is in sliding connection with the oil separation tank, one oil filtering unit is arranged on each of the left side and the right side of the oil scraping plate and close to the primary oil filtering unit, the water collecting tank is located 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 cavity and a lower 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 secondary oil filtering unit is located in the cavities above the oil separation plate and communicated with the primary oil filtering unit through an oil pipe, and the oil scraping plate is connected with the cavities 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 a multistage oil cleaning device for an oil separation tank for sewage treatment.
Background
Referring to fig. 1, in the conventional oil-water separation, the separation is generally achieved by utilizing the difference of specific gravities of suspended matters and water in wastewater. 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 a multistage oil cleaning device for an oil separation tank for sewage treatment, which solves the problems in the prior art that the oil cleaning is not thorough and the oil content is easy to contain water.
The technical scheme for solving the problem is as follows: the oil separation device comprises an oil separation tank, a primary oil filtering unit, an oil scraping plate, a water collecting tank and a secondary oil filtering unit, wherein the primary oil filtering unit is positioned in the oil separation tank and is close to the upper part of the oil separation tank, the oil scraping plate is in sliding connection with the oil separation tank, one oil scraping plate is arranged on each of the left side and the right side of the oil scraping plate and is close to the primary oil filtering unit, 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 secondary oil filtering unit is positioned in the chambers above the oil separation plate and is communicated with the primary oil filtering unit through an oil pipe, and the oil scraping plate is connected with the chambers below the water-stop plate through a gas pipeline; when water filtered 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 plates are moved towards the mutually approaching direction, the oil scraping plates extrude the oil above the oil separating tank to sequentially enter the first-stage oil filtering unit and the second-stage oil filtering unit for filtering, and the water stop plate can discharge the water in the water collecting tank after moving downwards.
Preferably, the primary oil filtering unit comprises an outer barrel and a middle barrel which are vertically arranged, a gap is arranged between the outer barrel and the middle barrel, the upper end of the middle barrel is opened, the upper end of the middle barrel is spaced from the upper end of the outer barrel, the lower end face of the middle barrel is fixed with the lower end face of the outer barrel, a sleeve is arranged in the middle barrel, the lower end of the sleeve is connected with the oil pipe and is communicated with the secondary oil filtering unit through the oil pipe, the upper end of the sleeve is positioned in the middle barrel, a vertical pipe is connected in the sleeve in a sliding way, a float is arranged at the upper end of the vertical pipe, the opening of the vertical pipe is close to the float and is positioned below the float, an oil inlet is respectively arranged at the left side and the right side of the outer barrel, the oil inlet penetrates through the side wall of the outer barrel, and is close to the lower part of the outer barrel, the oil inlet is provided with a check valve, the side wall of the outer barrel is provided with an annular groove, the annular groove is positioned between the oil inlet and the upper end surface of the middle barrel, the annular groove is close to the oil inlet, an oil separating film is arranged in the annular groove, and water can flow out through the oil separating film.
Preferably, the secondary oil filtering unit comprises an oil accumulating tank arranged on the lower end face of the oil separating tank, a sleeve is arranged in the oil accumulating tank, the upper end of the sleeve is closed and is separated from the upper end face of the oil separating tank, the lower end of the sleeve is fixed with the bottom face of the oil accumulating tank, a vertical plate is arranged on the right side of the sleeve and divides the space between the oil accumulating tank and the sleeve into two independent chambers, an oil filtering chamber is arranged on the left side of the vertical plate, an oil storage chamber is arranged on the right side of the vertical plate, the lower end of the oil pipe is communicated with the oil filtering chamber, a piston is arranged in the sleeve, a piston rod of the piston is fixedly connected with the water separating plate, two through holes are arranged on the side wall of the sleeve, a one-way valve is arranged on each through hole, and the through hole on the left side is communicated with the oil filtering chamber, the through hole on the right side is communicated with the oil storage cavity, the through hole on the left side is provided with an n-shaped pipeline, the left end of the n-shaped pipeline is connected with a sliding pipe in a sliding manner, the lower end of the sliding pipe is provided with a buoy, a liquid inlet of the sliding pipe is positioned below the buoy, and the right end of the n-shaped pipeline is connected with the through hole on the left side through a pipeline.
Preferably, the oil accumulation box bottom surface of piston below on seted up the outage, the sleeve pipe lateral wall on seted up a liquid groove, the liquid groove be close to the lower terminal surface of oil accumulation box, the liquid groove on install oil-separating film, oil accumulation box under seted up on the terminal surface with the communicating through-hole of sleeve, the liquid groove on be connected with a riser that can reciprocate, the riser with the liquid groove between sliding connection, the riser with the liquid groove between install the spring, the lower terminal surface of piston on install the bracing piece, the lower extreme of bracing piece be located directly over the riser.
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 positioned at the left side and the right side are respectively provided with an n-shaped gas pipeline, the pipeline at the upper side of the gas pipeline is horizontally positioned 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; the cavity below is extruded when the water-stop sheet moves downwards for the atmospheric pressure of the cavity below increases, and atmospheric pressure pushes the piston rod to move towards the direction that is close to each other, and the piston rod drives the frizing to move towards the direction that is close to each other.
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.
Preferably, the fixing device fix the position of the water-stop sheet, the water-stop sheet include the dowel pin of installing on the water-stop sheet lateral wall, the dowel pin can the water-stop sheet on horizontal migration, locating pin and water-stop sheet between install the spring, the lateral wall of catch basin on seted up with dowel pin complex positioning groove, when the water-stop sheet moves down to the lower extreme of its displacement, the dowel pin be located positioning groove, the position of water-stop sheet is fixed.
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 one-level oil strain 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 in 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 accumulatively, the moisture that the reduction oil content contains as far as possible.
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 filtering 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 sectional front view of the primary oil filter unit of the present invention.
FIG. 5 is an enlarged sectional front view of the secondary oil filter unit 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 present invention at B in fig. 2.
Fig. 8 is a partial enlarged view of the present invention at C in fig. 3.
Fig. 9 is a partial enlarged view of the present invention at D in fig. 5.
Fig. 10 is an enlarged partial cross-sectional view of an overload device between a water-stop sheet and a sump according to the present invention.
Fig. 11 is a top sectional view of a secondary oil filter unit of the 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 11, the invention comprises an oil separation tank 1, a primary oil filtering unit 2, an oil scraping plate 3, a water collecting tank 4 and a secondary oil filtering unit 5, wherein the primary oil filtering unit 2 is positioned in the oil separation tank 1 and close to the upper part of the oil separation tank 1, the oil scraping plate 3 is connected with the oil separation tank 1 in a sliding manner, one oil scraping plate 3 is respectively arranged at the left side and the right side of the oil scraping plate 3 and close to the primary oil filtering unit 2, the water collecting tank 4 is positioned below the oil separation tank 1, a water baffle 6 capable of moving up and down is arranged in the water collecting tank 4, the water baffle 6 divides the water collecting tank 4 into an upper independent chamber and a lower independent chamber, a water outlet of the oil separation tank 1 is communicated with the chambers above the water baffle 6 through a pipeline, the secondary oil filtering unit 5 is positioned in the chambers above the oil separation plate and is communicated with the primary oil filtering unit 2 through an oil pipe, the oil scraping plate 3 is connected with a chamber below the water-stop plate 6 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 sheet 6 through a pipeline, the water stop sheet 6 moves downwards due to the gravity of the water, the oil scraping plates 3 move towards the mutually approaching direction, the oil scraping plates 3 extrude the oil above the oil separation tank 1 to sequentially enter the first-stage oil filtering unit 2 and the second-stage oil filtering unit 5 for filtering, and the water in the water collecting tank 4 can be discharged after the water stop sheet 6 moves downwards.
The primary oil filtering unit 2 comprises an outer barrel 201 and a middle barrel 202 which are vertically arranged, a gap is arranged between the outer barrel 201 and the middle barrel 202, the upper end of the middle barrel 202 is opened, the upper end of the middle barrel 202 is spaced from the upper end of the outer barrel 201, the lower end surfaces of the middle barrel 202 and the outer barrel 201 are fixed, a sleeve 203 is installed in the middle barrel 202, the lower end of the sleeve 203 is connected with the oil pipe and is communicated with the secondary oil filtering unit 5 through the oil pipe, the upper end of the sleeve 203 is positioned in the middle barrel 202, a vertical pipe 204 is connected in the sleeve 203 in a sliding way, a float is installed at the upper end of the vertical pipe 204, the opening of the vertical pipe 204 is close to the float and is positioned below the float, an oil inlet is respectively arranged at the left side and the right side of the outer barrel 201, and the oil inlet penetrates through the side wall of the outer barrel 201, the oil inlet is close to the lower part of the outer barrel 201, a one-way valve is installed on the oil inlet, an annular groove 205 is formed in the side wall of the outer barrel 201, the annular groove 205 is located between the oil inlet and the upper end face of the middle barrel 202, the annular groove 205 is close to the oil inlet, an oil separating film 206 is installed in the annular groove 205, and water can flow out through the oil separating film 206; when the oil scraping plate 3 moves towards the direction close to each other, the oil content above the oil separation pool 1 is squeezed by the oil scraping plate 3 to enter the space between the outer barrel 201 and the middle barrel 202 through the one-way valve, the oil content above the oil separation pool 1 continuously enters the outer barrel 201, water is contained in the oil content, but the oil content floats to the upper layer due to the low density of the oil, the water flows out through the oil separation membrane 206, and since the oil inlet of the outer barrel 201 is close to the lower part, when the high end of the oil content in the outer barrel 201 and the uppermost end of the middle barrel 202 are positioned at the same horizontal plane, the oil content at the latest time enters the outer barrel 201 from the lower part, the oil layer above the oil separation pool gradually overflows into the middle barrel 202, the oil content accumulated for multiple times can be ensured to enter the middle barrel 202 during each overflow, the arrangement of the outer barrel 201 and the middle barrel 202 can filter the oil content once, and the vertical pipe 204 is provided with a float, therefore, the arrangement of the float can ensure that all substances entering the secondary oil filtering unit 5 are oil layers floating above the middle barrel 202.
The second-stage oil filtering unit 5 comprises an oil accumulating tank 501 arranged on the lower end surface of the oil separating tank 1, a sleeve 502 is arranged in the oil accumulating tank 501, the upper end of the sleeve 502 is closed and is spaced from the upper end surface of the oil separating tank 1, the lower end of the sleeve 502 is fixed with the bottom surface of the oil accumulating tank 501, a vertical plate 503 is arranged on the right side of the sleeve 502, the vertical plate 503 divides the space between the oil accumulating tank 501 and the sleeve 502 into two independent chambers, an oil filtering chamber 504 is arranged on the left side of the vertical plate 503, an oil storage chamber 505 is arranged on the right side of the vertical plate 503, the lower end of the oil pipe is communicated with the oil filtering chamber 504, a piston is arranged in the sleeve 502, a piston rod 12 of the piston is fixedly connected with the water separating plate 6, two through holes are arranged on the side wall of the sleeve 502, and a one-way valve is arranged on each through hole, the through hole on the left side is communicated with the oil filtering chamber 504, the through hole on the right side is communicated with the oil storage chamber 505, the through hole on the left side is provided with an n-shaped pipeline 506, the left end of the n-shaped pipeline 506 is connected with a sliding pipe 507 in a sliding way, the lower end of the sliding pipe 507 is provided with a buoy, the liquid inlet of the sliding pipe 507 is positioned below the buoy, and the right end of the n-shaped pipeline 506 is connected with the through hole 704 on the left side through a pipeline; when the water-stop sheet 6 moves downwards, the piston is driven to move downwards, so that negative pressure is formed above the piston, and due to the existence of the float, the liquid sucked is the uppermost liquid of the oil filtering chamber 504 during liquid suction, and since water is heavier than oil and the oil floats above, the oil above the oil filtering chamber 504 is sucked into the sleeve 502; when the water-stop sheet 6 moves upward, the piston is driven to move upward together, and the oil in the sleeve 502 is pressed to enter the oil storage chamber 505 through the check valve on the right side, so that secondary filtration is performed.
In order to discharge the water in the oil filtering chamber 504, a drain hole 508 is formed on the bottom surface of the oil accumulating box 501 below the piston, a liquid outlet groove 509 is formed on the side wall of the sleeve 203, the liquid outlet groove 509 is close to the lower end surface of the oil accumulating box 501, an oil separating film 206 is installed on the liquid outlet groove 509, a through hole communicated with the sleeve 502 is formed on the lower end surface of the oil accumulating box 501, a vertical plate 510 capable of moving up and down is connected to the liquid outlet groove 509, the vertical plate 510 is in sliding connection with the liquid outlet groove 509, a spring is installed between the vertical plate 510 and the liquid outlet groove 509, a support rod 511 is installed on the lower end surface of the piston, the lower end of the support rod 511 is located right above the vertical plate 510, when the water separating plate 6 drives the piston to move downwards, the support rod 511 below the piston contacts with the vertical plate 510, and drives the vertical plate 510 to move downwards, after the vertical plate 510 moves downwards, the liquid outlet groove 509 is opened, and the water in the oil filtering chamber 504 enters the lower part of the piston through the oil separating film 206 and is discharged through the liquid outlet hole 508.
In order to realize that the oil scraper 3 moves left and right, the oil in the oil separation tank 1 can be squeezed into the clear oil unit, a horizontal baffle 9 is arranged in the oil separation tank 1, the baffle 9 is positioned above the feed inlet of the clear oil unit, the front, back, left and right side surfaces of the baffle 9 are all contacted with the side wall of the oil separation tank 1, the oil scraping plate 3 is positioned below the baffle 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 connected with the baffle plate 9 in a sliding way, the front side and the rear side 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, when the oil scraping plates 3 move in the direction of approaching each other, the oil scraping plates 3 press the oil above the oil separation tank 1, so that the oil enters the oil cleaning unit.
In order to realize the up-and-down movement of the water-stop plate 6 and the horizontal movement of the oil scraping plate 3, two elastic plates 10 which are placed in front and at the back are arranged in a cavity below the water-stop plate 6, springs are arranged on the elastic plates 10, and the cavity below the water-stop plate 6 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 6 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 mutually approaching direction, and the piston rod 12 drives the oil scraping plate 3 to move towards the mutually approaching direction.
In order to realize that after the water-stop sheet 6 moves downwards, the water in the cavity above the water-stop sheet 6 can be discharged, the water-stop sheet 6 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 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 sheet 6 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 is arranged between the water-stop sheet 6 and the water-collecting tank 4, and when the water-stop sheet 6 moves downwards to the lowest end of the displacement thereof, the water-stop sheet 6 is fixed by the overload device, and ejector pin 705 pushes connecting plate 703 upward movement simultaneously, and shutoff board 702 upward movement opens apopore 701 simultaneously, and the water of water-stop sheet 6 top flows out through apopore 701, and the rivers of water-stop sheet 6 top are accomplished the back, and the spring on the elastic plate 10 drives water-stop sheet 6 and breaks through the overload upward movement and resets.
In order to realize when the water-stop sheet 6 moves down to its displacement lower extreme, the position of the fixed water-stop sheet 6 of fixing device, the water-stop sheet 6 including installing the dowel 14 on the 6 lateral walls of water-stop sheet, the dowel 14 can the water-stop sheet 6 on horizontal migration, locating pin and water-stop sheet 6 between install the spring, the lateral wall of catch basin 4 on offer with dowel 14 complex positioning groove 15, when the water-stop sheet 6 moves down to its displacement lower extreme, dowel 14 be located positioning groove 15, the position of water-stop sheet 6 is fixed.
When the device is used:
sewage enters a box body from an oil inlet 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 17, a partition plate 17 and an outlet partition plate 18, 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 content is floated above, and 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 6 to move downward, the water-stop sheet 6 moves downward to compress the chamber below, the increase of the air pressure in the chamber below pushes the piston rods 12 to move in the direction of approaching each other through the air pipe 11, the piston rods 12 are provided with springs which deform under tension, the oil-scraping sheets 3 move in the direction of approaching each other, and the oil-scraping sheets 3 make the oil layer above enter the primary oil filtering unit 2 through the one-way valve on the side wall of the outer barrel 201; namely: when the oil scraping plates 3 move towards the direction of approaching each other, the oil scraping plates 3 extrude the oil above the oil separation pool 1 to enter the space between the outer barrel 201 and the middle barrel 202 through the one-way valve;
when the water-stop sheet 6 moves downwards to the lowest end of the displacement, the water-stop sheet 6 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 6 flows out through the water outlet hole 701, and after the water above the water-stop sheet 6 is completely flowed, the spring on the elastic plate 10 drives the water-stop sheet 6 to break through the overload and move upwards for resetting; in the process that the water-stop sheet 6 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 in 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 6 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 primary oil filtering 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 one-level oil strain unit 2, can in time clear away the oil content on upper strata oil interceptor 1, prevent that the oil content is too much to influence the filter effect.
The oil in the outer barrel 201 and the middle barrel 202 of the primary oil filtering unit 2 is more and more gathered, when the oil enters into the interval between the outer barrel 201 and the inner barrel, the oil contains water, but because the density of the oil is lower, the oil floats to the upper layer, the water flows out through the oil separation 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 content in outer bucket 201 and well 202 the top are located the same horizontal plane, last time oil water enters into outer bucket 201, it gets into from the below, so can make the oil reservoir of top spill into well 202 gradually in, what can both guarantee to enter into well 202 when spilling into at every turn is the oil content of many times accumulations, so outer bucket 201 and well 202 set up and can once filter the oil content, and because standpipe 204 top is provided with the cursory, so, the setting of cursory can guarantee that the material that enters into in second grade oil filter unit 5 all is the showy oil reservoir in well 202 top.
When the oil in the outer barrel 201 overflows into the middle barrel 202, the overflowed oil enters the secondary oil filtering unit 5 through the oil pipe, namely enters the oil filtering chamber 504, and when the water-stop plate 6 moves downwards, the pistons in the sleeve 502 are driven to move downwards together, so that negative pressure is formed above the pistons, and due to the existence of floating, the sucked liquid is the liquid at the top of the oil filtering chamber 504 during liquid suction, and because water is heavier than oil, the oil floats above, so the oil above the oil filtering chamber 504 can be sucked into the sleeve 502; when the water-stop sheet 6 drives the piston to move downwards, the support rod 511 below the piston contacts with the baffle 9 and drives the baffle 9 to move downwards, after the baffle 9 moves downwards, the liquid outlet groove 509 is opened, and water in the oil filtering chamber 504 enters below the piston through the oil-stop film 206 and is discharged through the liquid outlet hole 508; when the water-stop sheet 6 moves upward, the piston is driven to move upward together, and the oil in the sleeve 502 is pressed to enter the oil storage chamber 505 through the check valve on the right side, so that secondary filtration is performed.
In the process of oil-water separation, the oil scraping plate 3 is controlled by the water outlet amount of sewage treatment to scrape the upper oil component intermittently, so that the oil component enters the primary oil filtering unit 2 and the secondary oil filtering unit 5 in sequence, 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 that of the uppermost end of the middle barrel 202, the oil scraping plate 3 can enable the uppermost oil in the outer barrel 201 to enter the middle barrel 202 every time the oil in the outer barrel 201 moves, even if the water entering the part in the middle barrel 202 is filtered again through the secondary oil filtering unit 5, the floating is arranged, so that the uppermost oil can enter when the substances in the middle barrel 202 enter the oil filtering chamber 504, and the uppermost oil can enter when the oil in the oil filtering chamber 504 enters the sleeve 502, so that the upper oil layer can be ensured to gradually overflow into the middle barrel 202 no matter how much oil is, the oil accumulated for multiple times can be ensured to enter into the middle barrel 202 every time overflow, and the water contained in the oil can be reduced as much as possible.
Claims (8)
1. The multistage oil cleaning device for the oil separation tank for sewage treatment is characterized by comprising an oil separation tank (1), a first-stage oil filtering unit (2), an oil scraping plate (3), a water collecting tank (4) and a second-stage oil filtering unit (5), wherein the first-stage oil filtering 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 scraping plate (3) is in sliding connection with the oil separation tank (1), the left side and the right side of the oil scraping plate (3) are respectively provided with one oil filtering unit (2) and are close to the first-stage oil filtering unit, the water collecting tank (4) is positioned below the oil separation tank (1), the water collecting tank (4) is internally provided with a water baffle plate (6) capable of moving up and down, the water baffle plate (6) divides the water collecting tank (4) into an upper independent chamber and a lower independent chamber, a water outlet of the oil separation tank (1) is communicated with the chambers above the water baffle plate (6) through a pipeline, the second-stage oil filtering unit (5) is positioned in a cavity above the oil separating plate and communicated with the first-stage oil filtering unit (2) through an oil pipe, and the oil scraping plate (3) is connected with the cavity below the oil separating plate (6) through a gas pipeline (11); when water filtered in the oil separation tank (1) flows into the water collection tank (4) above the water stop plate (6) through a pipeline, the water stop plate (6) 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) and sequentially enters the first-stage oil filtering unit (2) and the second-stage oil filtering unit (5) for filtering, and the water in the water collection tank (4) can be discharged after the water stop plate (6) moves downwards.
2. The multistage oil cleaning device of the oil separation tank for sewage treatment according to claim 1, wherein the primary oil filtering unit (2) comprises an outer barrel (201) and a middle barrel (202) which are vertically arranged, a space is arranged between the outer barrel (201) and the middle barrel (202), the upper end of the middle barrel (202) is open, the upper end of the middle barrel (202) is spaced from the upper end of the outer barrel (201), the middle barrel (202) is fixed with the lower end surface of the outer barrel (201), a sleeve (203) is arranged in the middle barrel (202), the lower end of the sleeve (203) is connected with the oil pipe and is communicated with the secondary oil filtering unit (5) through the oil pipe, the upper end of the sleeve (203) is positioned in the middle barrel (202), a vertical pipe (204) is slidably connected in the sleeve (203), and a float is arranged at the upper end of the vertical pipe (204), the opening of the standpipe (204) is close to the float and is positioned below the float, the left side and the right side of the outer barrel (201) are respectively provided with an oil inlet, the oil inlets penetrate through the side wall of the outer barrel (201), the oil inlets are close to the lower part of the outer barrel (201), one-way valves are installed on the oil inlets, the side wall of the outer barrel (201) is provided with an annular groove (205), the annular groove (205) is positioned between the oil inlets and the upper end surface of the middle barrel (202), the annular groove (205) is close to the oil inlets, an oil isolating film (206) is installed in the annular groove (205), and water can flow out through the oil isolating film (206).
3. The multistage oil cleaning device of the oil separation tank for sewage treatment according to claim 1, wherein the secondary oil filtering unit (5) comprises an oil accumulation tank (501) arranged on the lower end surface of the oil separation tank (1), a sleeve (502) is arranged in the oil accumulation tank (501), the upper end of the sleeve (502) is closed and is spaced from the upper end surface of the oil separation tank (1), the lower end of the sleeve (502) is fixed with the bottom surface of the oil accumulation tank (501), a vertical plate (503) is arranged on the right side of the sleeve (502), the vertical plate (503) divides the space between the oil accumulation tank (501) and the sleeve (502) into two independent chambers, the left side of the vertical plate (503) is an oil filtering chamber (504), the right side of the vertical plate (503) is an oil storage chamber (505), and the lower end of the oil pipe is communicated with the oil filtering chamber (504), the oil filter is characterized in that a piston is installed in the sleeve (502), a piston rod (12) of the piston is fixedly connected with the water stop plate (6), two through holes are formed in the side wall of the sleeve (502), a one-way valve is installed on each through hole, the through hole located on the left side is communicated with the oil filtering chamber (504), the through hole located on the right side is communicated with the oil storage chamber (505), an n-shaped pipeline (506) is installed on the through hole located on the left side, the left end of the n-shaped pipeline (506) is connected with a sliding pipe (507) in a sliding mode, a buoy is installed at the lower end of the sliding pipe (507), a liquid inlet of the sliding pipe (507) is located below the buoy, and the right end of the n-shaped pipeline (506) is connected with the through hole (704) on the left side through a pipeline.
4. The multistage oil cleaning device for the oil separation tank for sewage treatment according to claim 1, a liquid discharge hole (508) is arranged on the bottom surface of the oil accumulation tank (501) below the piston, a liquid outlet groove (509) is arranged on the side wall of the sleeve (203), the liquid outlet groove (509) is close to the lower end surface of the oil accumulation tank (501), an oil separating film (206) is arranged on the liquid outlet groove (509), a through hole communicated with the sleeve (502) is arranged on the lower end surface of the oil accumulating tank (501), the liquid outlet groove (509) is connected with a vertical plate (510) which can move up and down, the vertical plate (510) is connected with the liquid outlet groove (509) in a sliding way, a spring is arranged between the vertical plate (510) and the liquid outlet groove (509), the lower end face of the piston is provided with a support rod (511), and the lower end of the support rod (511) is positioned right above the vertical plate (510).
5. The multistage oil cleaning device of the oil separation tank for sewage treatment 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, 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. The multistage oil cleaning device of the oil separating tank for sewage treatment according to claim 1, wherein two elastic plates (10) which are placed in front and at the back are installed in the chamber below the water separating plate (6), the elastic plates (10) are provided with springs, and the chamber below the water separating plate (6) 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).
7. The multistage oil cleaning device of the oil separation tank for sewage treatment according to claim 1, wherein the water-stop plate (6) 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), a horizontal connecting plate (703) is connected below the plugging plate (702) 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 (6) 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 (6) and the water collecting tank (4).
8. The multistage oil cleaning device of the oil separating tank for sewage treatment according to claim 1, wherein the water separating plate (6) comprises a positioning pin (14) installed on the side wall of the water separating plate (6), the positioning pin (14) can horizontally move on the water separating plate (6), a spring is installed between the positioning pin and the water separating plate (6), and a positioning groove (15) matched with the positioning pin (14) is formed in the side wall of the water collecting tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110999425.8A CN113511703A (en) | 2021-08-29 | 2021-08-29 | Multistage edible vegetable oil device of oil interceptor of sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110999425.8A CN113511703A (en) | 2021-08-29 | 2021-08-29 | Multistage edible vegetable oil device of oil interceptor of sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113511703A true CN113511703A (en) | 2021-10-19 |
Family
ID=78063029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110999425.8A Withdrawn CN113511703A (en) | 2021-08-29 | 2021-08-29 | Multistage edible vegetable oil device of oil interceptor of sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113511703A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117886489A (en) * | 2024-03-18 | 2024-04-16 | 福建英辉新材料科技有限公司 | Oil removal pond for domestic sewage treatment |
-
2021
- 2021-08-29 CN CN202110999425.8A patent/CN113511703A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117886489A (en) * | 2024-03-18 | 2024-04-16 | 福建英辉新材料科技有限公司 | Oil removal pond for domestic sewage treatment |
| CN117886489B (en) * | 2024-03-18 | 2024-06-04 | 福建英辉新材料科技有限公司 | Oil removal pond for domestic sewage treatment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111589187B (en) | Organic extractant and water separating equipment with automatic flow channel flow dividing valve | |
| CN107619122B (en) | Restaurant sewage treatment equipment with oil collecting and backflow device and working method thereof | |
| CN209210512U (en) | Industrial oily wastewater water-oil separating oil-isolating device | |
| CN113511703A (en) | Multistage edible vegetable oil device of oil interceptor of sewage treatment | |
| CN201762140U (en) | Oil water separator of industrial cleaning machine | |
| CN1425484A (en) | Automatic control float valve oil and water separator | |
| CN1296286C (en) | Method and device used for recovering floating oil on water surface | |
| CN110075575B (en) | Settling tank for sewage treatment for timely separating precipitates | |
| CN113896281A (en) | Oil cleaning device for sewage treatment oil separation tank | |
| CN210261223U (en) | Oil-water separation device | |
| CN113511702A (en) | Sewage treatment's profit autosegregation device | |
| CN112142229A (en) | Oil-water separator | |
| CN205759882U (en) | Cutting fluid containing oil slick is carried out the trough body structure of fluid secondary separation | |
| CN209286826U (en) | Separating for several times oil water separator | |
| CN201052422Y (en) | Automatic oil water separation device | |
| CN203728614U (en) | Efficient vertical type oil-water separation device | |
| CN219098826U (en) | Oil removal pond of centralized clearance | |
| CN216837243U (en) | Oil separation tank for separating oil-containing wastewater | |
| CN201949686U (en) | Catering oily wastewater recycling system | |
| CN117819781B (en) | Fatty acid wastewater treatment device and process | |
| CN220887109U (en) | Oil and slag removing equipment | |
| CN215161207U (en) | Scraped car disassembles and uses oil-water separator | |
| CN204298104U (en) | Fiberglass oil interceptor | |
| CN212941588U (en) | Efficient oil removal device | |
| CN220078709U (en) | Deep oil separation device for extraction waste liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 450000 building 3, phase I, headquarters enterprise base, No. 1, Cuizhu street, high tech Zone, Zhengzhou City, Henan Province Applicant after: Gai Mingxiu Address before: 450000 headquarters enterprise base, No. 1, Cuizhu street, Zhongyuan District, Zhengzhou City, Henan Province Applicant before: Gai Mingxiu |
|
| CB02 | Change of applicant information | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211019 |
|
| WW01 | Invention patent application withdrawn after publication |