Purifying device for recycled sump oil of oil refining sewage treatment system

Abstract

The invention discloses a purification device for sump oil recovered by an oil refining sewage treatment system, and relates to the technical field of sump oil recovery and purification. The device comprises a purification device body, and a mixing mechanism and a layering mechanism are arranged in the purification device body; the layering mechanism comprises a bubble generation plate arranged in the purification device body, a bubble generator is arranged on one side of the purification device body, and the bubble generator is connected with the bubble generation plate. The mixing plate is arranged on the base, contact and mixing between bubbles and dirty oil can be enhanced, when the mixing plate inclines upwards, the bubbles can be helped to rise, the dirty oil is pushed to flow, contact between the bubbles and oil dirt is enhanced, when the mixing plate inclines downwards, rolling and stirring of the oil dirt and the bubbles can be better promoted, separation is further promoted, and therefore the recovery and purification effect of the dirty oil is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste oil recovery and purification equipment, and particularly relates to a purification device for recovering waste oil in a refinery sewage treatment system. Background Art

[0002] Petroleum, also known as crude oil, is a dark brown combustible viscous liquid extracted from deep underground. It is mainly a mixture of various alkanes, cycloalkanes, and aromatic hydrocarbons. It is a mixture formed by the long-term evolution of organisms in ancient oceans or lakes and belongs to fossil fuels like coal. Petroleum is mainly used as fuel oil and gasoline, and fuel oil and gasoline constitute one of the most important primary energy sources in the world. Petroleum is also a raw material for many chemical industrial products such as solutions, fertilizers, pesticides, and plastics. During the petroleum processing process, a lot of oil stains are generated. During the flushing and cleaning process in refineries, pollutants containing oil stains are washed away together. Sewage and impurities contain a large amount of oil stains, and direct discharge will cause great adverse effects on the environment.

[0003] In the patent (application number: CN201810033051.2), an oil stain treatment device for petroleum refining is disclosed, including a separation tank. The surface of the separation tank is fixedly connected with a first base, the surface of the first base is fixedly connected with a water pump, the water inlet end of the water pump is fixedly connected with a water inlet pipe, the water outlet end of the water pump is fixedly connected with a first water outlet pipe, and one end of the first water outlet pipe penetrates and extends into the interior of the separation tank. The surface of the separation tank is fixedly connected with a second base, and the surface of the second base is fixedly connected with a motor. For this oil stain treatment device for petroleum refining, when the first filter screen needs to be replaced, the first fixing bolt and the second fixing bolt are opened, and the first filter screen slides on the inner wall of the chute and slides out of the filter tank, achieving the effect of facilitating the disassembly and replacement of the first filter screen, thus effectively solving the problem that it is not very convenient to remove the oil stains in impurities in general oil stain treatment devices, and there are still oil stains when the impurities are discharged, which will pollute the environment to a certain extent.

[0004] The following technical problems exist in the actual use process of this patent and the prior art: When performing recovery and purification, it is mostly filtered through multiple filter screens. However, affected by the pore size of the filter screens, the waste oil may contain certain impurities, which may cause blockage during filtration. When using the air flotation method, due to the different viscosities in the waste oil, it is difficult for the bubbles to be evenly mixed with the waste oil inside. Summary of the Invention

[0005] The purpose of the present invention is: to solve the above problems, the present invention provides a purification device for recovering waste oil in a refinery sewage treatment system.

[0006] The present invention specifically adopts the following technical solutions to achieve the above purpose: A purification device for recovering waste oil from a refinery sewage treatment system, comprising a purification device body, wherein a mixing mechanism and a stratification mechanism are arranged inside the purification device body; The stratification mechanism includes a bubble generating plate arranged inside the purification device body, and a bubble generator is arranged on one side of the purification device body. The bubble generator is connected to the bubble generating plate; The mixing mechanism includes a mixing cylinder arranged inside the purification device body. Mixing frames are arranged on both sides of the mixing cylinder. An installation part is fixedly installed on one side of the mixing frame. Four groups of installation parts are symmetrically arranged. A mixing plate is fixedly installed between the installation parts. The mixing plate has a certain toughness. An installation plate is arranged between the interiors of the mixing frames. The installation plate can slide between the mixing frames. The installation plate is located on one side of the mixing plate; A sliding plate is arranged inside the installation plate, and a pressure detector is arranged inside the sliding plate. The sliding plate can horizontally move between the inner walls of the installation plate.

[0007] Further, an adjusting rod is rotatably installed inside the mixing cylinder. A spiral groove is formed on the surface of the adjusting rod. An adjusting ring is slidably installed on the adjusting rod through the spiral groove. A connecting rod is fixedly installed on the surface of the adjusting ring. Two groups of connecting rods are symmetrically arranged.

[0008] Further, sliding grooves are formed on the surface of the mixing cylinder. Two groups of sliding grooves are symmetrically arranged. The connecting rod is fixedly connected to the installation plate through the sliding groove. A connecting spring is sleeved on the surface of the adjusting rod. The connecting spring is fixedly connected to the adjusting ring.

[0009] Further, an adding box is fixedly installed on one side of the purification device body. An adding pump is arranged inside the adding box. The output end of the adding pump is fixedly installed with an adding pipe. The adding pipe is fixedly communicated with the purification device body. The pressure detector is electrically connected to the adding pump.

[0010] Further, an electric telescopic rod is fixedly installed inside the installation plate. The output end of the electric telescopic rod is fixedly connected to the sliding plate. The sliding plate is slidably connected to the installation plate.

[0011] Further, a first driving rod is fixedly installed on the top of the mixing cylinder. A second driving rod is fixedly installed on the top of the adjusting rod. Both the first driving rod and the second driving rod penetrate and extend above the purification device body. Connecting gears are fixedly installed on the surfaces of both the first driving rod and the second driving rod.

[0012] Furthermore, a motor mount is fixedly installed at the top of the purification device body. A driving motor is fixedly installed at the top of the motor mount. The output end of the driving motor is fixedly installed with a driving gear. There are two sets of driving gears arranged symmetrically. The driving gear is meshed with a connecting gear, and the sizes of the driving gear and the connecting gear are arranged in a staggered manner.

[0013] Furthermore, a support base is fixedly installed at the top of the purification device body, and the bubble generator is fixedly connected to the support base.

[0014] Furthermore, an oil storage cylinder is fixedly installed on one side of the purification device body. An electric telescopic pipe is fixedly installed at the top of the purification device body. A drain pipe is fixedly connected between the oil storage cylinder and the electric telescopic pipe. A drain pipe is fixedly connected to one side of the purification device body.

[0015] Furthermore, a filter frame is fixedly installed between the inner walls of the mixing frame.

[0016] The beneficial effects of the present invention are as follows: 1. Through the mixing mechanism provided in the present invention, when purifying waste oil, by adjusting the angle of the mixing plate, the contact and mixing between bubbles and waste oil can be enhanced. When the mixing plate tilts upward, it can help the bubbles rise and promote the flow of waste oil, enhancing the contact between bubbles and oil stains. When the mixing plate tilts downward, it can better promote the tumbling and stirring of oil stains and bubbles, further promoting separation, thereby improving the recovery and purification effect of waste oil.

[0017] 2. By continuously changing the tilt angle of the mixing plate in the present invention, it can help the bubbles be evenly distributed inside the entire purification device body. At the same time, under the reciprocating movement of the mounting plate, the bubbles and oil stain particles can come into contact at different angles multiple times, which helps the oil stains adhere and float better, reduces the immersion time of bubbles in water, and improves the separation effect.

[0018] 3. Through the pressure detector provided in the present invention, the resistance received by the mixing plate can be continuously detected. When the viscosity of the oil stain inside the purification device body is relatively high, the resistance received will become larger. When it exceeds the threshold, the pressure detector will control the dosing pump inside the dosing tank to transport the demulsifier inside through the dosing pipe to the inside of the purification device body, thereby mixing the waste oil inside, and then reducing the emulsification inside the waste oil, enabling the oil droplets to quickly aggregate and separate. At the same time, when the electric telescopic rod pushes out the sliding plate, the tilt angle of the mixing plate will become larger or smaller at this time. For high-viscosity oil stains, increase the tilt angle of the mixing plate to improve the mixing effect, so as to increase the contact area and mixing efficiency between waste oil and bubbles. On the contrary, in low-viscosity oil stains, the tilt angle can be reduced, thereby reducing the stirring force. Description of the Drawings

[0019] Figure 1 is the overall schematic diagram of the present invention; Figure 2 is the front view schematic diagram of the whole of the present invention; Figure 3 is the present invention Figure 3 schematic diagram at position A in; Figure 4 is the internal schematic diagram of the purification device body of the present invention; Figure 5 is the schematic diagram of the mixing frame of the present invention; Figure 6 is the schematic diagram of the mounting plate of the present invention; Figure 7 is the schematic diagram of the pressure detector of the present invention; Figure 8 is the schematic diagram of the mixing cylinder of the present invention; Figure 9 is the schematic diagram of the spiral groove of the present invention.

[0020] Reference numerals: 1, purification device body; 2, mixing mechanism; 201, mixing cylinder; 202, mixing frame; 203, mounting member; 204, mixing plate; 205, mounting plate; 206, sliding plate; 207, pressure detector; 3, stratifying mechanism; 301, bubble generating plate; 302, bubble generator; 4, adjusting rod; 5, spiral groove; 6, adjusting ring; 7, connecting rod; 8, chute; 9, connecting spring; 10, adding tank; 11, adding pipe; 12, electric telescopic rod; 13, first driving rod; 14, second driving rod; 15, connecting gear; 16, motor frame; 17, driving motor; 18, driving gear; 19, support seat; 20, oil storage cylinder; 21, filter frame; 22, drain pipe; 23, drain pipe. Detailed implementation manners

[0021] To make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0022] A purification device for recovering waste oil in a refinery sewage treatment system according to a preferred embodiment of the present invention will be elaborated in detail below.

[0023] Embodiment 1, as Figures 1-9 shown, includes a purification device body 1, and a mixing mechanism 2 and a stratifying mechanism 3 are arranged inside the purification device body 1; The stratifying mechanism 3 includes a bubble generating plate 301 arranged inside the purification device body 1, a bubble generator 302 is arranged on one side of the purification device body 1, and the bubble generator 302 is connected to the bubble generating plate 301; The mixing mechanism 2 includes a mixing cylinder 201 disposed inside the purification device body 1. Mixing frames 202 are provided on both sides of the mixing cylinder 201. An installation member 203 is fixedly installed on one side of the mixing frame 202. Four groups of installation members 203 are symmetrically arranged. A mixing plate 204 is fixedly installed between the installation members 203. The mixing plate 204 has a certain toughness. An installation plate 205 is disposed between the interiors of the mixing frames 202. The installation plate 205 can slide between the mixing frames 202. The installation plate 205 is located on one side of the mixing plate 204; A sliding plate 206 is disposed inside the installation plate 205. A pressure detector 207 is disposed inside the sliding plate 206. The sliding plate 206 can horizontally move between the inner walls of the installation plate 205; First, the staff injects the waste oil to be recycled and purified into the purification device body 1. Subsequently, the staff starts the bubble generator 302. The bubble generator 302 injects bubbles into the purification device body 1 through the bubble generating plate 301, so as to contact the waste oil inside it. At the same time, the mixing cylinder 201 is controlled to drive the mixing frame 202 to rotate, so as to mix the waste oil inside the purification device body 1 with the bubbles generated by the bubble generating plate 301. The small bubbles generated by the bubble generating plate 301 contact the waste oil particles and make them float; At the same time, in the initial stage of waste oil purification, the staff controls the installation plate 205 to slide inside the mixing frame 202. When the installation plate 205 inside the mixing frame 202 moves upward, due to the certain toughness of the mixing plate 204, when the mixing frame 202 moves upward, the mixing plate 204 presents a downward inclined state. The mixing plate 204 will generate more stirring effects on the waste oil, promote the distribution of bubbles, and evenly distribute the bubbles into the oil stain, making the oil stain float; In the later stage of waste oil purification, at this time the oil stain has begun to float and gather on the water surface. At this time, the installation plate 205 is controlled to move downward. At this time, the mixing plate 204 presents an upward inclined state. At this time, the mixing effect of the mixing plate 204 is weakened. At the same time, due to the upward inclined state, the oil stain can float upward more concentratedly on the water surface and will not be dispersed by the mixing plate 204 again, making the waste oil form an obvious oil layer. After the purification is completed, the staff can extract the purified oil stain layer and the clear water layer through the device respectively; Through the set mixing mechanism 2, when purifying the waste oil, by adjusting the angle of the mixing plate 204, the contact and mixing between the bubbles and the waste oil can be enhanced. When the mixing plate 204 is inclined upward, it can help the bubbles rise, promote the flow of the waste oil, and enhance the contact between the bubbles and the oil stain. When the mixing plate 204 is inclined downward, it can better promote the tumbling and stirring of the oil stain and the bubbles, further promoting the separation, thereby improving the recovery and purification effect of the waste oil.

[0024] Embodiment 2, as Figures 1-9As shown in the figure, a regulating rod 4 is rotatably installed inside a mixing cylinder 201. A spiral groove 5 is formed on the surface of the regulating rod 4. An adjusting ring 6 is slidably installed on the regulating rod 4 through the spiral groove 5. A connecting rod 7 is fixedly installed on the surface of the adjusting ring 6. Two groups of connecting rods 7 are symmetrically arranged. A sliding groove 8 is formed on the surface of the mixing cylinder 201. Two groups of sliding grooves 8 are symmetrically arranged. The connecting rod 7 is fixedly connected with a mounting plate 205 through the sliding groove 8. A connecting spring 9 is sleeved on the surface of the regulating rod 4. The connecting spring 9 is fixedly connected with the adjusting ring 6; When the regulating rod 4 rotates, the adjusting ring 6 can move spirally along the spiral groove 5 formed on the surface of the regulating rod 4. The adjusting ring 6 will squeeze the connecting spring 9 during the movement. At the same time, since the end of the spiral groove 5 is set to be vertical, when the adjusting ring 6 is driven by the rotation of the regulating rod 4 and moves to the vertical part of the spiral groove 5, the adjusting ring 6 will be pushed back to its original position by the elastic potential energy of the connecting spring 9, so that it makes a reciprocating motion. At this time, the adjusting ring 6 can drive the mounting plate 205 to move reciprocally through the connecting rod 7. Further, under the movement of the mounting plate 205, the mixing plate 204 continuously tilts upward and downward, so as to mix the waste oil in the purification device body 1; By continuously changing the inclination angle of the mixing plate 204, it can help the bubbles to be evenly distributed inside the entire purification device body 1. At the same time, under the reciprocating motion of the mounting plate 205, the bubbles and oil pollution particles can be in contact at different angles for multiple times, which helps the oil pollution to better adhere and float, reduces the immersion time of the bubbles in the water, and improves the separation effect.

[0025] Embodiment 3, as Figures 1-7 shown, a dosing tank 10 is fixedly installed on one side of the purification device body 1. A dosing pump is arranged inside the dosing tank 10. The output end of the dosing pump is fixedly installed with a dosing pipe 11. The dosing pipe 11 is fixedly communicated with the purification device body 1. A pressure detector 207 is electrically connected to the dosing pump; The staff first injects a demulsifier into the dosing tank 10. At the same time, the pressure detector 207 detects the viscosity of the oil pollution inside the purification device body 1. When it detects that the viscosity is high, it will control the dosing pump to transport the demulsifier to the inside of the purification device body 1 through the dosing pipe 11. An electric telescopic rod 12 is fixedly installed inside the mounting plate 205. The output end of the electric telescopic rod 12 is fixedly connected with a sliding plate 206. The sliding plate 206 is slidably connected with the mounting plate 205; The resistance received by the mixing plate 204 can be continuously detected by the pressure detector 207 provided. When the viscosity of the oil stain inside the purification device body 1 is relatively high, the resistance received will become larger. When it exceeds the threshold value, the pressure detector 207 will control the addition pump inside the addition tank 10 to transport the demulsifier inside through the addition pipe 11 into the purification device body 1, so as to mix the oil stain inside, thereby reducing the emulsification property inside the oil stain, enabling the oil droplets to quickly aggregate and separate. At the same time, when the electric telescopic rod 12 pushes out the sliding plate 206, the inclined angle of the mixing plate 204 will be larger or smaller at this time. For high-viscosity oil stains, the inclined angle of the mixing plate 204 is increased to improve the mixing effect, so as to increase the contact area and mixing efficiency between the oil stain and the bubbles. On the contrary, in low-viscosity oil stains, the inclined angle can be reduced, thereby reducing the stirring force.

[0026] Example Four, as Figures 1-4 shown, a first driving rod 13 is fixedly installed at the top of the mixing cylinder 201, a second driving rod 14 is fixedly installed at the top of the adjusting rod 4. Both the first driving rod 13 and the second driving rod 14 penetrate and extend above the purification device body 1. Connecting gears 15 are fixedly installed on the surfaces of the first driving rod 13 and the second driving rod 14. A motor bracket 16 is fixedly installed at the top of the purification device body 1, a driving motor 17 is fixedly installed at the top of the motor bracket 16. The output end of the driving motor 17 is fixedly installed with a driving gear 18. Two groups of driving gears 18 are symmetrically arranged. The driving gear 18 is meshed and connected with the connecting gear 15. The sizes of the two groups of driving gears 18 and the connecting gear 15 are set differently; When the driving motor 17 drives the driving gear 18 to rotate, the driving gear 18 can be meshed with the connecting gear 15 and drive the connecting gear 15 to rotate synchronously. Since the sizes of the two groups of driving gears 18 and the connecting gear 15 are set differently, when the connecting gear 15 drives the first driving rod 13 and the second driving rod 14 to rotate, the first driving rod 13 and the second driving rod 14 can further drive the mixing cylinder 201 and the adjusting rod 4 to rotate.

[0027] Example Five, as Figures 1-9 shown, a support seat 19 is fixedly installed at the top of the purification device body 1. The bubble generator 302 is fixedly connected with the support seat 19. A storage oil cylinder 20 is fixedly installed on one side of the purification device body 1. An electric telescopic pipe is fixedly installed at the top of the purification device body 1. A drain pipe 22 is fixedly communicated between the storage oil cylinder 20 and the electric telescopic pipe. A drain pipe 23 is fixedly communicated on one side of the purification device body 1. A filter frame 21 is fixedly installed between the inner walls of the mixing frame 202; After the waste oil purification is completed, the electric telescopic pipe extends, and the purified waste oil inside the purification device body 1 is pumped out into the oil storage cylinder 20 through the oil discharge pipe 22 by using an external water pump. After the oil to be separated is pumped out, the drain pipe 23 is opened to discharge the purified water. The filter frame 21 provided can collect the impurities precipitated from the waste oil during rotation.

[0028] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A purification device for recovering waste oil from a refinery sewage treatment system, comprising a purification device body (1), characterized in that, The purification device body (1) is provided with a mixing mechanism (2) and a stratification mechanism (3) inside; The layered structure (3) includes a bubble generating plate (301) arranged inside the purification device body (1), a bubble generator (302) is provided on one side of the purification device body (1), and the bubble generator (302) is connected to the bubble generating plate (301); The mixing mechanism (2) comprises a mixing cylinder (201) arranged inside the purification device body (1), mixing frames (202) are arranged on both sides of the mixing cylinder (201), a mounting member (203) is fixedly mounted on one side of the mixing frame (202), four groups of mounting members (203) are symmetrically arranged, mixing plates (204) are fixedly mounted between the mounting members (203), the mixing plates (204) have a certain toughness, mounting plates (205) are arranged between the insides of the mixing frames (202), the mounting plates (205) are capable of sliding between the mixing frames (202), and the mounting plates (205) are located on one side of the mixing plates (204); A sliding plate (206) is provided inside the mounting plate (205), a pressure detector (207) is provided inside the sliding plate (206), and the sliding plate (206) is capable of horizontally moving between inner walls of the mounting plate (205).

2. The purification device for recovering waste oil in a refinery sewage treatment system according to claim 1, characterized in that, An adjusting rod (4) is rotatably mounted inside the mixing barrel (201), a spiral groove (5) is provided on the surface of the adjusting rod (4), an adjusting ring (6) is slidably mounted on the adjusting rod (4) through the spiral groove (5), a connecting rod (7) is fixedly mounted on the surface of the adjusting ring (6), and two groups of connecting rods (7) are symmetrically arranged.

3. A purification device for recovering waste oil from a refinery sewage treatment system according to claim 2, characterized in that, The surface of the mixing barrel (201) is provided with a slide groove (8), and the slide groove (8) is symmetrically arranged in two groups. The connecting rod (7) is fixedly connected to the mounting plate (205) through the slide groove (8). The surface of the adjusting rod (4) is provided with a connecting spring (9), and the connecting spring (9) is fixedly connected to the adjusting ring (6).

4. A purification device for recovering waste oil in a refinery sewage treatment system according to claim 1, characterized in that, An addition box (10) is fixedly installed on one side of the purification device body (1), an addition pump is provided inside the addition box (10), an addition pipe (11) is fixedly installed at the output end of the addition pump, the addition pipe (11) is fixedly connected to the purification device body (1), and the pressure detector (207) is electrically connected to the addition pump.

5. A purification device for recovering waste oil from a refinery sewage treatment system according to claim 1, characterized in that, An electric telescopic rod (12) is fixedly installed inside the mounting plate (205), an output end of the electric telescopic rod (12) is fixedly connected to a sliding plate (206), and the sliding plate (206) is slidably connected to the mounting plate (205).

6. The purification device for recovering waste oil in a refinery sewage treatment system according to claim 1, characterized in that, A first driving rod (13) is fixedly mounted on the top of the mixing barrel (201), and a second driving rod (14) is fixedly mounted on the top of the regulating rod (4). Both the first driving rod (13) and the second driving rod (14) pass through and extend above the purification device body (1). Connecting gears (15) are fixedly mounted on the surfaces of both the first driving rod (13) and the second driving rod (14).

7. A purification device for recovering waste oil in a refinery sewage treatment system according to claim 6, characterized in that, A motor frame (16) is fixedly installed at the top of the purification device body (1). A driving motor (17) is fixedly installed at the top of the motor frame (16). A driving gear (18) is fixedly installed at the output end of the driving motor (17). Two groups of driving gears (18) are symmetrically arranged. The driving gear (18) is meshed with the connecting gear (15). The sizes of the driving gear (18) and the connecting gear (15) are set to be staggered.

8. The purification device for recovering waste oil from a refinery sewage treatment system according to claim 1, characterized in that, A support base (19) is fixedly installed at the top of the purification device body (1). The bubble generator (302) is fixedly connected to the support base (19).

9. The purification device for recovering waste oil from a refinery wastewater treatment system according to claim 1, characterized in that: An oil storage cylinder (20) is fixedly installed on one side of the purification device body (1). An electric telescopic pipe is fixedly installed at the top of the purification device body (1). An oil discharge pipe (22) is fixedly communicated between the oil storage cylinder (20) and the electric telescopic pipe. A drain pipe (23) is fixedly communicated on one side of the purification device body (1).

10. The purification device for recovering waste oil from a refinery wastewater treatment system according to claim 1, characterized in that: A filter frame (21) is fixedly installed between the inner walls of the mixing frame (202).

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