CN108017214B

CN108017214B - Oily sewage recovery processing device after cleaning of aluminum profile extrusion die

Info

Publication number: CN108017214B
Application number: CN201711344310.5A
Authority: CN
Inventors: 黄秀华; 黄奋
Original assignee: FUJIAN FENAN ALUMINUM CO LTD
Current assignee: Fen An Aluminum Co ltd
Priority date: 2018-03-19
Filing date: 2018-03-19
Publication date: 2020-05-19
Anticipated expiration: 2038-03-19
Also published as: CN108017214A

Abstract

The invention provides an oily sewage recovery processing device after cleaning an aluminum profile extrusion die. When an oil layer enters from the oil inlet, firstly, the flow channel is widened, the oil layer starts to distribute and diffuse, and impurities in the oil layer are gradually deposited on the impurity adsorption layer; a plurality of pits and convex columns are formed on the impurity adsorption layer of the settling tank, so that the flow of the oil layer can be blocked, and the flow rate of the oil layer is further reduced; the contact area and the contact time of the impurity adsorption layer and an oil layer can be increased, and the adsorption effect of the impurity adsorption layer on impurities in the oil layer is enhanced; the pits can deposit naturally falling or adsorbed impurities, so that the influence of the flowing of an oil layer on the adsorption effect due to the flushing of the impurities is avoided; the oil layer treated by the slow flow settling mechanism flows out of the oil outlet and is collected and stored by the oil collecting tank.

Description

Oily sewage recovery processing device after cleaning of aluminum profile extrusion die

Technical Field

The invention relates to the field of oily sewage treatment equipment, in particular to an oily sewage recovery and treatment device after cleaning of an aluminum profile extrusion die.

Background

After the aluminum profile extrusion die finishes the aluminum profile extrusion processing, the aluminum profile extrusion die needs to be cleaned, a large amount of grease is contained in the cleaned sewage, the oily sewage needs to be treated, and the oil stain residue and the environmental pollution are avoided. At present, the treatment method of oily sewage after cleaning the aluminum profile extrusion die at home and abroad mainly comprises the following three types: chemical treatment, physical treatment and biochemical treatment. The physical treatment method does not need additional substances, the equipment can be repeatedly used, the overall cost is relatively low, and the method is the method which is used most. For the treatment of large-scale oily sewage, a centrifugal separation method is also adopted frequently. However, the existing method for treating the oily sewage after cleaning the aluminum profile extrusion die still has shortcomings in the comprehensive consideration of separation efficiency, separation cost and separation effect.

Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.

Disclosure of Invention

The invention aims to provide the oily sewage recovery and treatment device after the cleaning of the aluminum profile extrusion die, which has the advantages of simple operation, high efficiency and thoroughness of oil-water separation, obvious separation effect, safety, reliability, environmental protection, energy conservation, complete secondary or repeated use, novel and reasonable structure, low cost and strong practicability.

In order to achieve the purpose, the invention adopts the following technical scheme:

an oily sewage recovery processing device after cleaning an aluminum profile extrusion die sequentially comprises a gravity separation mechanism, a slow flow sedimentation mechanism and an oil collecting tank along an oily sewage treatment production line; the gravity separation mechanism comprises a barrel body which is used for containing oily sewage and has a large diameter, an oil collecting small-diameter pipe which is arranged at the upper end of the barrel body and has a small diameter, a conical transition section which is connected between the barrel body and the oil collecting small-diameter pipe and gradually becomes thick from top to bottom, and a pressurizing device which is arranged at the lower part of the barrel body and used for pressurizing the barrel body;

the barrel body comprises a barrel side wall and a barrel bottom wall arranged at the lower end of the barrel side wall, a vibration plate is arranged on the upper surface of the barrel bottom wall, and the edge of the vibration plate is hermetically connected with the inner surface of the barrel side wall; the vibration plate is provided with a vibration driving device;

the conical transition section is provided with a water inlet nozzle for oily sewage to enter the barrel body and an air inlet nozzle for air to enter the barrel body; a water outlet is formed at the lower end of the barrel body;

the pressurizing device comprises a cylinder body which is horizontally arranged and communicated with the lower part of the barrel body, a piston rod which is matched with the cylinder body, and a pressurizing driving device which drives the piston rod;

the oil collecting small-diameter pipe comprises a conducting valve, a first filter screen, a second filter screen and a floating sealing gasket, wherein the first filter screen, the second filter screen and the floating sealing gasket are arranged in the oil collecting small-diameter pipe; the first filter screen is positioned above the second filter screen, the conducting valve is positioned between the first filter screen and the second filter screen, and the floating sealing gasket is positioned above the first filter screen; an end cover is arranged at the upper end of the oil collecting small-diameter pipe and is in a conical shape which becomes thicker gradually from top to bottom, and the end cover is provided with an inner conical surface positioned on the lower surface;

after the oily sewage is layered, a water layer with higher density is positioned below the oily sewage, and an oil layer with lower density is positioned above the oily sewage; the average density of the floating sealing gasket is between the density of a water layer and the density of an oil layer, and the diameter of the floating sealing gasket is smaller than the inner diameter of the oil collecting small-diameter pipe; the floating sealing gasket comprises a floating layer, a flexible sealing layer and a first heating component, wherein the floating layer is positioned at the lower part and plays a role of floating, the flexible sealing layer is positioned at the upper part and can be in sealing contact with the end cover, and the first heating component is arranged in the flexible sealing layer; the floating layer is cylindrical and has a protruding section protruding from the water layer, which can ensure that the water layer is below the flexible sealing layer 1242 and the oil layer is above the floating layer 1241; the flexible sealing layer is in a conical shape which becomes thicker gradually from top to bottom, the flexible sealing layer is provided with an outer conical surface on the outer surface, and the included angle between the generatrix of the outer conical surface and the horizontal plane is smaller than the included angle between the generatrix of the inner conical surface and the horizontal plane; the flexible sealing layer is provided with a first through hole which penetrates through the flexible sealing layer up and down and is coaxial, and the first through hole is corresponding to the second through hole; the lower end of the first through hole is provided with a first elastic sealing and blocking film layer for sealing and blocking the first through hole, and the upper end of the second through hole is provided with a second elastic sealing and blocking film layer for sealing and blocking the second through hole;

the end cover is provided with a closing pressurizing switch for closing the pressurizing driving device, and the closing pressurizing switch comprises a main body part and a triggering part which protrudes downwards from the lower surface of the end cover and is used for triggering the second elastic blocking film layer;

the slow flow sedimentation mechanism comprises a sedimentation tank and a communicating pipe connected between the sedimentation tank and the end cover; the sedimentation tank comprises a tank side wall, a tank bottom wall detachably connected to the lower end of the tank side wall, and an impurity adsorption layer arranged on the upper surface of the tank bottom wall; the bottom wall of the box hermetically compresses the impurity adsorption layer to the lower end of the side wall of the box; the side wall of the tank is provided with an oil inlet which is positioned at one side and communicated with the communicating pipe and an oil outlet which is positioned at the other side and corresponds to the oil receiving tank; the settling tank gradually becomes wider from the oil inlet to the oil outlet and then gradually becomes narrower; the impurity adsorption layer is a resin material layer embedded with activated carbon particles, a plurality of pits and a plurality of convex columns are formed on the upper surface of the impurity adsorption layer, and the diameter of each pit is 0.1-1 mm; a second heating component is arranged in the box bottom wall;

an oil collecting outlet communicated with the communicating pipe is formed in the end cover, the oil collecting outlet is formed in the upper end of the inner conical surface, and a protective net layer for preventing the second elastic blocking film layer from entering the oil collecting outlet is arranged at the inner end opening of the oil collecting outlet; the oil inlet is formed in the upper part of the tank side wall;

the oil receiving tank is correspondingly positioned below the oil outlet.

The edge of the second elastic barrier film layer is connected with the upper end of the outer conical surface.

The peripheral surface of the floating sealing gasket is provided with a plurality of strip-shaped grooves parallel to the axis of the floating sealing gasket, and the strip-shaped grooves vertically penetrate through the peripheral surface of the floating sealing gasket and are uniformly arranged around the axis of the floating sealing gasket.

The projection of the settling tank on the horizontal plane is elliptical, and the connecting line of the oil inlet and the oil outlet is positioned on the short axis of the elliptical settling tank.

The impurity adsorption layer is an elastic resin material layer, a step groove for accommodating the impurity adsorption layer is formed at the lower end of the inner surface of the side wall of the box, and the height of the step groove is smaller than the thickness of the impurity adsorption layer; the box bottom wall is locked at the lower end of the box side wall through bolts.

The vibration driving device comprises a motor, an eccentric vibrating block connected to the output end of the motor, and a vibration transmission part connected between the eccentric vibrating block and the vibrating plate.

And the conducting valve is provided with an operating part positioned outside the oil collecting small-diameter pipe.

The first heat-generating component and the second heat-generating component are both electric heat-generating elements, and the first heat-generating component and the second heat-generating component are provided with batteries or leads connected with an external power supply.

After the technical scheme is adopted, in the oil-containing sewage recovery and treatment device after the aluminum profile extrusion die is cleaned, in the actual use process, the sewage is subjected to oil-water separation by using the gravity separation mechanism, then the oil is subjected to impurity precipitation and adsorption by the slow flow precipitation mechanism, and clean oil is obtained and is collected in the oil collection tank. The method comprises the steps of firstly injecting sewage to be treated into a barrel body through a water inlet nozzle, closing the water inlet nozzle and a conducting valve after a certain amount of sewage is injected, then filling air with a certain pressure into the barrel body through an air inlet nozzle to enable part of the air to be dissolved in the sewage, then closing the air inlet nozzle, driving a piston rod to be matched with a cylinder body through a pressurizing driving device to apply pressure into the barrel body, enabling most of the air in the barrel body to be dissolved in the sewage under high pressure, keeping the water inlet nozzle, the air inlet nozzle and the conducting valve closed, and keeping a certain time to enable the air to be uniformly dissolved in the sewage. When retrieving oil, open and lead to valve release pressure, the air that dissolves in the sewage can form countless even small bubble under the pressure diminishes condition, small bubble increases gradually and rises in sewage, small bubble can contact and adsorb with the tiny oil reservoir granule of suspension in sewage at the in-process that rises, and then the oil reservoir granule that drives in the sewage rises to the sewage surface, and the vibration drive arrangement drive vibration board vibration of accessible bucket diapire at the small bubble in-process that rises, can make and produce more small bubbles and rise fast in the sewage. After the small bubbles rise, the oily sewage is layered, the lower part is a water layer with higher density, the upper part is an oil layer with lower density, then the pressurizing device is used for pressurizing the interior of the barrel body again, the water layer drives the oil layer to enter the oil collecting small-diameter pipe through the transition of the conical transition section, and as the diameter of the oil collecting small-diameter pipe is obviously smaller than that of the barrel body, the thickness of the oil layer in the oil collecting small-diameter pipe is obviously increased, so that the oil layer can be conveniently collected; the oil layer and the water layer sequentially pass through the second filter screen and the first filter screen, when the water layer passes through the first filter screen, the floating sealing gasket on the upper surface of the first filter screen can float, and because the average density of the floating sealing gasket is between the density of the water layer and the density of the oil layer and the diameter of the floating sealing gasket is smaller than the inner diameter of the oil collecting small-diameter pipe, the oil layer with lower density can penetrate through the gap between the floating sealing gasket and the oil collecting small-diameter pipe to submerge the floating sealing gasket, the water layer with higher density cannot penetrate through the gap between the floating sealing gasket and the oil collecting small-diameter pipe, and the flexible sealing layer is completely positioned above; along with the pressurizing device continuously applying pressure to the barrel body, the water layer supports the oil layer to continuously move upwards along the oil collecting small-diameter pipe, and the oil layer flows out through the oil collecting outlet, enters the communicating pipe and enters the settling tank of the slow flow settling mechanism through the oil inlet.

When an oil layer enters from the oil inlet, firstly, the flow channel is widened, the oil layer starts to distribute and diffuse, the flow velocity of the oil layer is greatly reduced, and impurities in the oil layer are gradually deposited on the impurity adsorption layer; a plurality of pits and convex columns are formed on the impurity adsorption layer of the settling tank, so that the flow of the oil layer can be blocked, and a further flow slowing effect is performed, so that the flow rate of the oil layer is further reduced; the concave pits and the convex columns can increase the contact area and the contact time of the impurity adsorption layer and the oil layer, and enhance the adsorption effect of the impurity adsorption layer on impurities in the oil layer; the pits can deposit naturally falling or adsorbed impurities, so that the influence of the flowing of an oil layer on the adsorption effect due to the flushing of the impurities is avoided; the oil layer treated by the slow flow settling mechanism flows out of the oil outlet and is collected and stored by the oil collecting tank.

When the oil layer is about to completely flow out from the oil collecting outlet, the lower edge of the flexible sealing layer is in sealing contact with the inner conical surface of the end cover, at the moment, the water layer and a small part of the oil layer below the flexible sealing layer are sealed and cannot continuously move upwards, then, the pressure is continuously applied to the barrel body along with the pressurizing device, the water layer generates upward extrusion force on the whole floating sealing gasket, the outer conical surface of the flexible sealing layer gradually generates elastic deformation under the reaction force of the inner conical surface of the end cover, the oil layer between the outer conical surface and the inner conical surface is gradually extruded upwards to the position above the second elastic sealing film layer, meanwhile, the water layer generates upward pressure on the first elastic sealing film layer, the first elastic sealing film layer arches upwards, the first elastic sealing film layer can apply pressure to the air between the first elastic sealing film layer and the second elastic sealing film layer, and the air between the first elastic sealing film layer and the second elastic sealing film layer can generate upward pressure on the second elastic sealing film layer, then the second elastic blocking film layer arches upwards to extrude the oil layer above the second elastic blocking film layer out of the oil collecting outlet, and when the second elastic blocking film layer continues to arch upwards, the second elastic blocking film layer can abut against and trigger the pressurizing switch to be closed to close the pressurizing device, and the water layer does not rise any more; meanwhile, the upper end of the oil collecting small-diameter pipe is completely sealed by the flexible sealing layer, after the oil layer is separated, the water layer can not flow out along with the oil layer, and only a few parts of the oil layer are left in the oil collecting small-diameter pipe, so that the oil-water separation is clear, efficient and thorough. And first heating component and second heating component can heat the oil reservoir, have the effect that keeps the oil reservoir in the mobile state, solidify and the adhesion when avoiding the oil reservoir to pass through each passageway, and then flow smoothly. And the protective net layer on the oil collection outlet can prevent the air bag of the flexible sealing layer from expanding and extruding to enter the communicating pipe to cause damage. The treated sewage can be recycled, and the aluminum profile extrusion die is cleaned. Even if sewage is discharged, the environment is not polluted, and the energy is saved and the environment is protected.

Compared with the prior art, the oily sewage recovery and treatment device after cleaning the aluminum profile extrusion die is simple to operate, efficient and thorough in oil-water separation, remarkable in separation effect, safe, reliable, environment-friendly, energy-saving, capable of being reused or reused, novel and reasonable in structure, low in cost and high in practicability.

Drawings

FIG. 1 is a schematic cross-sectional view of a first embodiment of the present invention;

FIG. 2 is a schematic view, partly in section, of the second state of the invention;

FIG. 3 is a schematic view, partly in section, of a third aspect of the present invention;

FIG. 4 is a cross-sectional schematic view of the floating seal;

FIG. 5 is a schematic top view of the floating seal;

FIG. 6 is a schematic top view of a portion of a slow flow settling mechanism;

fig. 7 is a partial sectional structure diagram of the slow flow sedimentation mechanism.

In the figure:

1-gravity separation mechanism

11-barrel body

111-vibration plate 1111-vibration driving device

112-drainage outlet

12-oil collecting small-diameter pipe

121-conducting valve 122-first filter 123-second filter 124-floating sealing gasket

1241-floating layer b-first via e-first elastic barrier film layer

1242-Flexible sealing layer c-second through hole a-outer conical surface k-second elastic sealing barrier film layer

125-end cap

1251-closing pressure switch 1252-oil collecting outlet d-protective net layer 1253-inner cone surface

13-conical transition section 131-water inlet nozzle 132-air inlet nozzle

14-pressurizing device 141-cylinder 142-piston rod 143-pressurizing driving device

2-slow flow sedimentation mechanism

21-settling tank 211-tank side wall 2111-oil inlet 2112-oil outlet

212-box bottom wall 213-impurity adsorption layer 2131-concave pits 2132-convex columns

22-communicating pipe

And 3-oil collecting tank.

Detailed Description

In order to further explain the technical solution of the present invention, the following detailed description is given by way of specific examples.

The invention discloses an oily sewage recovery and treatment device after cleaning an aluminum profile extrusion die, which comprises a gravity separation mechanism 1, a slow flow sedimentation mechanism and an oil receiving tank in sequence along an oily sewage treatment production line as shown in figures 1-7.

The gravity separation mechanism 1 comprises a barrel body 11 which is used for containing oily sewage and has a large diameter, an oil collecting small-diameter pipe 12 which is arranged at the upper end of the barrel body 11 and has a small diameter, a conical transition section 13 which is connected between the barrel body 11 and the oil collecting small-diameter pipe 12 and gradually becomes thick from top to bottom, and a pressurizing device 14 which is arranged at the lower part of the barrel body 11 and used for pressurizing the barrel body 11;

the barrel body 11 comprises a barrel side wall and a barrel bottom wall arranged at the lower end of the barrel side wall, a vibration plate 111 is arranged on the upper surface of the barrel bottom wall, and the edge of the vibration plate 111 is connected with the inner surface of the barrel side wall in a sealing manner; the vibration driving device 1111 is disposed on the vibration plate 111;

the conical transition section 13 is provided with a water inlet nozzle 131 for oily sewage to enter the barrel body 11 and a gas inlet nozzle 132 for air to enter the barrel body 11; the lower end of the barrel body 11 is provided with a water outlet 112;

the pressurizing device 14 includes a cylinder 141 horizontally disposed and communicating with the lower portion of the tub 11, a piston rod 142 engaged with the cylinder 141, and a pressurizing driving device 143 driving the piston rod 142;

the oil collecting small-diameter pipe 12 comprises a conducting valve 121, a first filter screen 122, a second filter screen 123 and a floating sealing gasket 124 which are arranged in the oil collecting small-diameter pipe 12; the first filter 122 is positioned above the second filter 123, the conducting valve 121 is positioned between the first filter 122 and the second filter 123, and the floating sealing gasket 124 is positioned above the first filter 122; the upper end of the oil collecting small-diameter pipe 12 is provided with an end cover 125, the end cover 125 is conical and gradually becomes thicker from top to bottom, and the end cover 125 is provided with an inner conical surface 1253 positioned on the lower surface;

after the oily sewage is layered, a water layer with higher density is positioned below the oily sewage, and an oil layer with lower density is positioned above the oily sewage; the average density of the floating sealing gasket 124 is between the density of the water layer and the density of the oil layer, and the diameter of the floating sealing gasket 124 is smaller than the inner diameter of the oil collecting small-diameter pipe 12; the floating seal gasket 124 comprises a floating layer 1241 which plays a role of floating at the lower part, a flexible sealing layer 1242 which can be in sealing contact with the end cover 125 at the upper part, and a first heating component arranged in the flexible sealing layer 1242; the floating layer 1241 is cylindrical, and the floating layer 1241 has a protruding section protruding from the water layer, which can ensure that the water layer is below the flexible sealing layer 1242 and the oil layer is above the floating layer 1241; the flexible sealing layer 1242 is conical and gradually becomes thicker from top to bottom, the flexible sealing layer 1242 is provided with an outer conical surface a on the outer surface, and the included angle between the generatrix of the outer conical surface a and the horizontal plane is smaller than the included angle between the generatrix of the inner conical surface 1253 and the horizontal plane; a first through hole b which penetrates through the floating layer 1241 vertically and coaxially is formed, a second through hole c which penetrates through the flexible sealing layer 1242 vertically and coaxially is formed, and the first through hole b corresponds to the second through hole c; the lower end of the first through hole b is provided with a first elastic sealing and blocking film layer e for sealing and blocking the first through hole b, and the upper end of the second through hole c is provided with a second elastic sealing and blocking film layer k for sealing and blocking the second through hole c;

the end cover 125 is provided with a closing pressurizing switch 1251 for closing the pressurizing driving device 143, and the closing pressurizing switch 1251 comprises a main body part and a trigger part which protrudes downwards from the lower surface of the end cover 125 and is used for triggering the second elastic barrier film layer k;

the slow flow sedimentation mechanism 2 comprises a sedimentation tank 21 and a communicating pipe 22 connected between the sedimentation tank 21 and an end cover 125; the settling tank 21 comprises a tank side wall 211, a tank bottom wall 212 detachably connected to the lower end of the tank side wall 211, and an impurity adsorbing layer 213 provided on the upper surface of the tank bottom wall 212; the tank bottom wall 212 hermetically presses the impurity adsorbing layer 213 against the lower end of the tank side wall 211; the tank side wall 211 has an oil inlet 2111 at one side communicating with the communication pipe 22 and an oil outlet 2112 at the other side corresponding to the oil collection tank 3; the settling tank 21 gradually widens from the oil inlet 2111 to the oil outlet 2112 and then gradually narrows; the impurity adsorption layer 213 is a resin material layer embedded with activated carbon particles, a plurality of pits 2131 and a plurality of convex columns 2132 are formed on the upper surface of the impurity adsorption layer 213, and the diameter of each pit 2131 is 0.1-1 mm; a second heat generating component is provided in the case bottom wall 212;

an oil collection outlet 1252 communicated with the communicating pipe 22 is formed in the end cover 125, the oil collection outlet 1252 is formed in the upper end of the inner conical surface 1253, and a protective net layer d for preventing the second elastic blocking film layer k from entering the oil collection outlet 1252 is arranged at the inner end opening of the oil collection outlet 1252; an oil inlet 2111 is formed in an upper portion of the tank side wall 211;

the oil receiving tank 3 is correspondingly positioned below the oil outlet 2112.

In the actual use process of the oily sewage recovery and treatment device after cleaning the aluminum profile extrusion die, the sewage is subjected to oil-water separation by using the gravity separation mechanism 1, then the oil is subjected to impurity precipitation and adsorption by the slow flow precipitation mechanism 2, and clean oil is obtained and collected in the oil collection tank 3. Specifically, sewage to be treated is injected into the barrel body 11 through the water inlet nozzle 131, after a certain amount of sewage is injected, the water inlet nozzle 131 and the conduction valve 121 are closed, air with a certain pressure is filled into the barrel body 11 through the air inlet nozzle 131, so that part of air is dissolved in the sewage, then the air inlet nozzle 131 is closed, the piston rod 142 is driven by the pressurizing driving device 143 to be matched with the cylinder body 141 to apply pressure to the barrel body 11, most of air in the barrel body 11 is dissolved in the sewage under high pressure, the water inlet nozzle 131, the air inlet nozzle 132 and the conduction valve 121 are kept closed, and the air is kept for a certain time to be uniformly dissolved in the sewage. When oil is recovered, the conducting valve 121 is opened to release pressure, countless uniform small bubbles can be formed by air dissolved in sewage under the condition that the pressure is reduced, the small bubbles are gradually increased and rise in the sewage, the small bubbles can be contacted with and adsorbed by tiny oil layer particles suspended in the sewage in the rising process, the oil layer particles in the sewage are further driven to rise to the surface of the sewage, and the vibration driving device 1111 at the bottom wall of the bucket can drive the vibration plate 111 to vibrate in the rising process of the small bubbles, so that more small bubbles can be generated in the sewage and quickly rise. After the small bubbles rise, the oily sewage is layered, the lower part is a water layer with higher density, the upper part is an oil layer with lower density, then the pressurizing device applies pressure to the barrel body 11 again, the water layer drives the oil layer to enter the oil collecting small-diameter pipe 12 through the transition of the conical transition section, and as the diameter of the oil collecting small-diameter pipe 12 is obviously smaller than that of the barrel body 11, the thickness of the oil layer in the oil collecting small-diameter pipe 12 is obviously larger, the oil layer is convenient to collect; the oil layer and the water layer sequentially pass through the second filter screen 123 and the first filter screen 122, when the water layer passes through the first filter screen 122, the floating seal gasket 124 on the upper surface of the first filter screen 122 floats, because the average density of the floating seal gasket 124 is between the density of the water layer and the density of the oil layer, and the diameter of the floating seal gasket 124 is smaller than the inner diameter of the oil collecting small-diameter pipe 12, the oil layer with lower density penetrates through the gap between the floating seal gasket 124 and the oil collecting small-diameter pipe 12 to submerge the floating seal gasket 124, and the water layer with higher density cannot penetrate through the gap between the floating seal gasket 124 and the oil collecting small-diameter pipe 12, and the flexible seal layer 124 is completely above the water; as the pressurizing device 14 continues to pressurize the barrel body 11, the water layer holds the oil layer and continues to move upwards along the oil collecting small-diameter pipe 12, the oil layer flows out through the oil collecting outlet 1252, enters the communicating pipe 22 and enters the settling tank 21 of the slow flow settling mechanism 2 from the oil inlet 2111,

when an oil layer enters from the oil inlet 2111, firstly, the flow channel is widened, the oil layer starts to distribute and diffuse, the flow speed of the oil layer is greatly reduced, and impurities in the oil layer are gradually deposited on the impurity adsorption layer 213; a plurality of concave pits 2131 and convex columns 2132 are formed on the impurity adsorption layer 213 of the settling tank 21, so that the flow of the oil layer is blocked, a further flow slowing effect is performed, and the flow rate of the oil layer is further reduced; the concave pits 2131 and the convex columns 2132 can increase the contact area and the contact time of the impurity adsorption layer and an oil layer, and enhance the adsorption effect of the impurity adsorption layer 213 on impurities in the oil layer; the pits 2131 can deposit naturally falling or adsorbed impurities, so that the influence of the flowing of an oil layer on the adsorption effect due to the flushing of the impurities is avoided; the oil layer treated by the slow flow settling mechanism 2 flows out from the oil outlet 2112 and is collected and stored by the oil collecting tank 3.

When the oil layer is about to completely flow out from the oil collecting outlet 1252, the lower edge of the flexible sealing layer 1242 is in sealing contact with the inner conical surface 1253 of the end cover 125, at this time, the water layer and a small part of the oil layer below the flexible sealing layer 1242 are blocked and do not move upwards continuously, then, as the pressurizing device 14 continues to pressurize the inside of the barrel body 11, the water layer generates an upward extrusion force on the whole floating sealing gasket 124, the outer conical surface a of the flexible sealing layer 1242 gradually generates elastic deformation under the reaction force of the inner conical surface 1253 of the end cover 125, so that the oil layer between the outer conical surface a and the inner conical surface 1253 is gradually extruded upwards to the upper side of the second elastic blocking film layer k, meanwhile, the water layer generates an upward pressure on the first elastic blocking film layer e, the first elastic blocking film layer e arches upwards, and the first elastic blocking film layer e can pressurize the air between the first elastic blocking film layer e and the second elastic blocking film layer k, the air between the first elastic blocking film layer e and the second elastic blocking film layer k can generate upward pressure on the second elastic blocking film layer k, then the second elastic blocking film layer k arches upwards to extrude the oil layer above the second elastic blocking film layer k out of the oil collecting outlet 1252 almost completely, and then when the second elastic blocking film layer k continues to arch upwards, the second elastic blocking film layer k can abut against and trigger the closing of the pressurizing switch 1251 to close the pressurizing device 14, so that the water layer does not rise any more; meanwhile, the upper end of the oil collecting small-diameter pipe 12 is completely sealed by the flexible sealing layer 1242, after the oil layer is separated, the water layer can not flow out along with the oil layer, and only a few parts of the oil layer are left in the oil collecting small-diameter pipe 12, so that the oil-water separation is clear, efficient and thorough. And first heating component and second heating component can heat the oil reservoir, have the effect that keeps the oil reservoir in the mobile state, solidify and the adhesion when avoiding the oil reservoir to pass through each passageway, and then flow smoothly. A specific structure may be that the first heat generating component is disposed around the inside of the flexible sealing layer 1242. And the protective mesh layer d on the oil collection outlet 1252 can prevent the air bag of the flexible sealing layer 1242 from being squeezed into the communication pipe 22 and damaged. The treated sewage can be recycled, and the aluminum profile extrusion die is cleaned. Even if sewage is discharged, the environment is not polluted, and the energy is saved and the environment is protected.

Preferably, the edge of the second elastic barrier film layer k is connected with the upper end of the outer tapered surface a. This facilitates the lower edge of the flexible seal layer 1242 to sealingly contact the inner conical surface 1253 of the end cap 125 and to be resiliently deformed by the force.

In order to realize a specific structure of the floating seal 124, it is preferable that the peripheral surface of the floating seal 124 is formed with a plurality of strip-shaped grooves parallel to the axis of the floating seal 124, and each strip-shaped groove penetrates the peripheral surface of the floating seal 124 up and down and is uniformly arranged around the axis of the floating seal 124. Thus, the smooth passing of the oil layer is facilitated, and the separation is more thorough and efficient.

Preferably, the projection of the settling tank 21 on the horizontal plane is elliptical, and the connecting line of the oil inlet 2111 and the oil outlet 2112 is on the short axis of the elliptical settling tank 21. In the oily sewage recovery and treatment device after cleaning of the aluminum profile extrusion die, in the actual use process, the settling tank 21 is designed to be elliptical, so that an oil layer can smoothly and slowly flow on the impurity adsorption layer 213, the oil layer is diffused and shunted in the middle and then is converged to the oil outlet 2112 to flow out from the narrow part, and the oil layer flows more stably and efficiently.

Preferably, the impurity adsorbing layer 213 is a resin material layer having elasticity, a stepped groove for accommodating the impurity adsorbing layer 213 is formed at the lower end of the inner surface of the tank sidewall 211, and the height of the stepped groove is smaller than the thickness of the impurity adsorbing layer 213; the tank bottom wall 212 is fastened to the lower end of the tank side wall 211 by bolts. In the oily sewage recovery and treatment device after cleaning the aluminum profile extrusion die, in the actual use process, the impurity adsorption layer 213 has elasticity, and the height of the step groove is smaller than the thickness of the impurity adsorption layer 213, so that the locking and sealing effect on the settling tank 21 can be realized; the box bottom wall 212 is locked by bolts, the impurity adsorption layer 213 can be detachably replaced, and the operation is simple, convenient and fast.

In order to realize a specific structure of the vibration driving device 1111, it is preferable that the vibration driving device 1111 includes a motor, an eccentric oscillating block connected to an output end of the motor, and a vibration transmission member connected between the eccentric oscillating block and the oscillating plate 111. This can cause the vibration plate 111 to vibrate better, and the small bubbles at the lower end of the tub 11 to float and rise.

Preferably, the introduction valve 121 is provided with an operation member outside the oil collecting small diameter pipe 12. This facilitates the operational control of the conduction and the closure of the oil collecting small diameter pipe 12.

Preferably, the first heat generating component and the second heat generating component are both electric heat generating elements, and the first heat generating component and the second heat generating component are provided with batteries or wires connected with an external power supply.

The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.

Claims

1. The utility model provides an oily sewage recovery processing device after aluminium alloy extrusion die washs which characterized in that: the device sequentially comprises a gravity separation mechanism, a slow flow sedimentation mechanism and an oil collecting tank along the oily sewage treatment production line; the gravity separation mechanism comprises a barrel body which is used for containing oily sewage and has a large diameter, an oil collecting small-diameter pipe which is arranged at the upper end of the barrel body and has a small diameter, a conical transition section which is connected between the barrel body and the oil collecting small-diameter pipe and gradually becomes thick from top to bottom, and a pressurizing device which is arranged at the lower part of the barrel body and used for pressurizing the barrel body;

after the oily sewage is layered, a water layer with higher density is positioned below the oily sewage, and an oil layer with lower density is positioned above the oily sewage; the average density of the floating sealing gasket is between the density of a water layer and the density of an oil layer, and the diameter of the floating sealing gasket is smaller than the inner diameter of the oil collecting small-diameter pipe; the floating sealing gasket comprises a floating layer, a flexible sealing layer and a first heating component, wherein the floating layer is positioned at the lower part and plays a role of floating, the flexible sealing layer is positioned at the upper part and can be in sealing contact with the end cover, and the first heating component is arranged in the flexible sealing layer; the floating layer is cylindrical and is provided with a protruding section protruding out of the water layer, and the protruding section can ensure that the water layer is positioned below the flexible sealing layer and the oil layer is positioned above the floating layer; the flexible sealing layer is in a conical shape which becomes thicker gradually from top to bottom, the flexible sealing layer is provided with an outer conical surface on the outer surface, and the included angle between the generatrix of the outer conical surface and the horizontal plane is smaller than the included angle between the generatrix of the inner conical surface and the horizontal plane; the flexible sealing layer is provided with a first through hole which penetrates through the flexible sealing layer up and down and is coaxial, and the first through hole is corresponding to the second through hole; the lower end of the first through hole is provided with a first elastic sealing and blocking film layer for sealing and blocking the first through hole, and the upper end of the second through hole is provided with a second elastic sealing and blocking film layer for sealing and blocking the second through hole;

the oil receiving tank is correspondingly positioned below the oil outlet.

2. The oily sewage recovery and treatment device after cleaning of the aluminum profile extrusion die is characterized in that: the edge of the second elastic barrier film layer is connected with the upper end of the outer conical surface.

3. The oily sewage recovery and treatment device after cleaning of the aluminum profile extrusion die is characterized in that: the peripheral surface of the floating sealing gasket is provided with a plurality of strip-shaped grooves parallel to the axis of the floating sealing gasket, and the strip-shaped grooves vertically penetrate through the peripheral surface of the floating sealing gasket and are uniformly arranged around the axis of the floating sealing gasket.

4. The oily sewage recovery and treatment device after the cleaning of the aluminum profile extrusion die is characterized in that: the projection of the settling tank on the horizontal plane is elliptical, and the connecting line of the oil inlet and the oil outlet is positioned on the short axis of the elliptical settling tank.

5. The oily sewage recovery and treatment device after cleaning of the aluminum profile extrusion die is characterized in that: the impurity adsorption layer is an elastic resin material layer, a step groove for accommodating the impurity adsorption layer is formed at the lower end of the inner surface of the side wall of the box, and the height of the step groove is smaller than the thickness of the impurity adsorption layer; the box bottom wall is locked at the lower end of the box side wall through bolts.

6. The oily sewage recovery and treatment device after the cleaning of the aluminum profile extrusion die is characterized in that: the vibration driving device comprises a motor, an eccentric vibrating block connected to the output end of the motor, and a vibration transmission part connected between the eccentric vibrating block and the vibrating plate.

7. The oily sewage recovery and treatment device after the cleaning of the aluminum profile extrusion die is characterized in that: and the conducting valve is provided with an operating part positioned outside the oil collecting small-diameter pipe.

8. The oily sewage recovery and treatment device after the cleaning of the aluminum profile extrusion die is characterized in that: the first heat-generating component and the second heat-generating component are both electric heat-generating elements, and the first heat-generating component and the second heat-generating component are provided with batteries or leads connected with an external power supply.