Separation and purification equipment for treating oil-water mixed waste

Abstract

The invention discloses separation and purification equipment for oil-water mixed waste treatment, and relates to the field of separation and purification, the separation and purification equipment comprises a support frame, the top of the support frame is fixedly connected with a gravity settling mechanism, the outer surface of the support frame is fixedly connected with a collecting barrel mechanism, and the outer surface of the gravity settling mechanism is fixedly connected with a centrifugal separation mechanism; the bottom of the centrifugal separation mechanism is fixedly connected with a bottom plate, supporting legs are uniformly arranged at the bottom of the bottom plate, the center of the bottom of the bottom plate is fixedly connected with a supporting plate I, and the outer surface of the supporting plate I is fixedly connected with a servo motor. The primary separation of impurities, water and oil is realized, the separated oil flows into the collecting barrel mechanism, and the oil-water mixed liquid which is difficult to separate flows into the centrifugal separation mechanism, so that further separation and purification are realized.

Description

Technical Field

[0001] The invention relates to the technical field of separation and purification, in particular to separation and purification equipment for treating oil-water mixed waste. Background Art

[0002] Oil-water mixed waste refers to a mixture of waste containing both oil and water, which is commonly found in industrial production, transportation, catering services and other fields. In industry, processes such as mechanical processing and metal cleaning will produce oil-water mixed waste containing emulsified oil, cutting oil, etc. In the field of transportation, vehicle maintenance and gas station operations may produce a mixture of waste oil and water. In the catering industry, oily wastewater from the kitchen is also a common oil-water mixed waste. If this type of waste is discharged directly without proper treatment, it will cause serious harm to the environment, such as polluting the soil and water sources and affecting the ecological balance. The treatment of oil-water mixed waste usually requires the use of physical, chemical or biological methods to separate oil and water in order to achieve the purpose of resource recovery and environmental protection.

[0003] When separating and purifying oil-water mixed waste, there may be fine solid particles in the oil-water mixed waste: such as dust, metal debris, fiber, etc., which may be mixed with oil and water and easily clog the separation equipment or affect the separation effect during the separation process. Summary of the invention

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the present invention to solve the technical problems is as follows: the separation and purification equipment for treating oil-water mixed wastes described in the present invention comprises a support frame, the top of the support frame is fixedly connected with a gravity sedimentation mechanism, the outer surface of the support frame is fixedly connected with a collecting bucket mechanism, the outer surface of the gravity sedimentation mechanism is fixedly connected with a centrifugal separation mechanism, the bottom of the centrifugal separation mechanism is fixedly connected with a bottom plate, the bottom of the bottom plate is evenly provided with supporting feet, the bottom center of the bottom plate is fixedly connected with a support plate 1, and the outer surface of the support plate 1 is fixedly connected with a servo motor;

[0005] The gravity sedimentation mechanism comprises a sedimentation bin, the top of which is fixedly connected to an oil outlet pipe 1, the top of which is provided with a control valve 1, the bottom of which is fixedly connected to an outflow pipe, the top of which is provided with a control valve 2, the inner wall of the sedimentation bin is symmetrically provided with side grooves, the outer surface of which is fixedly connected to a separation mechanism, the end of the sedimentation bin away from the oil outlet pipe 1 is fixedly connected to a collecting plate, and the outer surface of the sedimentation bin is fixedly connected to an oil discharge mechanism;

[0006] The separation mechanism includes an arc-shaped rod, the outer surface of which is slidably connected to an isolation plate, the top of which is symmetrically provided with iron wires, the top of which is fixedly connected to a block, the end of the iron wire away from the isolation plate is fixedly connected to a fixed block, side slides are provided at both ends of the isolation plate, the inner wall of the side slide is slidably connected to a sliding block, and the opposite surface of the sliding block is fixedly connected to a scratch plate.

[0007] Preferably, the bottom of the sedimentation bin is fixedly connected to the top of the support frame, the bottom of the arc rod is fixedly connected to the inner wall of the side groove, and the outer surface of the isolation plate is slidably connected to the inner wall of the side groove.

[0008] Preferably, the oil drain mechanism includes an oil storage plate, the inner wall of the oil storage plate is symmetrically provided with oil outlets, the top of the oil storage plate is symmetrically provided with a support rod 1, the bottom of the support rod 1 is fixedly connected with a bottom block, the outer surface of the support rod 1 is slidably provided with a baffle, and the baffle and the oil outlet are in the same horizontal plane.

[0009] Preferably, the outer surface of the oil storage plate is slidably connected to the outer surface of the sedimentation bin, and the outer surface of the oil storage plate is fixedly connected to a side of the fixed block away from the wire.

[0010] Preferably, the collecting barrel mechanism includes a support plate 1, one end of which is fixedly connected to the outer surface of the support frame, the top of the support plate 1 is fixedly connected to an oil storage barrel 1, the top of the oil storage barrel 1 is fixedly connected to a support rod 2, and the top of the support rod 2 is fixedly connected to a baffle plate.

[0011] Preferably, the centrifugal separation mechanism includes a centrifugal bin, a top cover is fixedly connected to the top of the centrifugal bin, an oil outlet pipe 2 is fixedly connected to the outer surface of the centrifugal bin, a liquid pump 1 is arranged on the oil outlet pipe 2, an oil storage barrel is fixedly connected to the bottom of the oil outlet pipe 2, a water outlet pipe is fixedly connected to the bottom of the centrifugal bin, a liquid pump 2 is arranged on the water outlet pipe, a water storage barrel is fixedly connected to the bottom of the water outlet pipe, an output end of the servo motor 1 is fixedly connected to a motor shaft, a centrifugal mechanism is fixedly connected to the top of the motor shaft, and a support plate 2 is fixedly connected to the outer surface of the liquid pump 1.

[0012] Preferably, the centrifugal mechanism comprises a drum, the outer surface of which is evenly provided with streamlined plates, the inner wall of which is fixedly connected with a liquid storage column, the top of which is fixedly connected with a liquid inlet, and the outer surface of which is evenly provided with a rotating mechanism.

[0013] Preferably, the rotating mechanism includes a rotating plate, the top of the rotating plate is fixedly connected to an infusion tube, the top of the infusion tube is fixedly connected to the outer surface of the liquid storage column, the end of the rotating plate away from the liquid storage column is provided with a scratch tip, the outer surface of the scratch tip is provided with a leakage port, the outer surface of the rotating plate is fixedly connected to a protruding plate, and the inner wall of the rotating plate is fixedly connected to an extrusion mechanism.

[0014] Preferably, the extrusion mechanism includes a telescopic spring, one end of the telescopic spring is fixedly connected to a push plate, the end of the push plate away from the telescopic spring is fixedly connected to a support rod three, the end of the support rod three away from the push plate is fixedly connected to an extrusion plate two, support plates three are symmetrically arranged at both ends of the extrusion plate two, the opposite surface of the support plate three is rotatably connected to a rotating shaft, and the outer surface of the rotating shaft is fixedly connected to a stirring blade.

[0015] Preferably, the bottom of the drum is fixedly connected to the top of the motor shaft, one end of the rotating plate is fixedly connected to the outer surface of the liquid storage column, and one end of the telescopic spring away from the pushing plate is fixedly connected to the inner wall of the rotating plate.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention sets a gravity sedimentation mechanism. First, the waste with oil-water mixture is poured into the sedimentation bin. After a period of sedimentation, most of the oil and water will be separated. Since the density of the oil is relatively small, it will be at the top of the sedimentation bin. A Y-shaped double barrel pipe is connected to the oil outlet pipe 1 and the control valve 1 is opened to allow the oil layer at the top to flow into the oil discharge mechanism and drive the separation mechanism to start working.

[0018] 2. The present invention sets a separation mechanism. When pouring waste, since the waste contains not only a water-oil mixture but also fine solid particles such as dust, metal debris, fiber, etc., which may be mixed with oil and water and easily clog the separation equipment or affect the separation effect during the separation process, the isolation plate will block the fine solid particles to prevent these particles from entering the subsequent centrifugal separation mechanism. At the same time, as the oil layer enters the oil discharge mechanism, it will drive the wire to move downward and make the isolation plate move along the arc rod. When it moves to the top of the arc rod, it will be blocked. At this time, the isolation plate will be in an inclined state, and the sliding plate will slide downward along the side slide and drive the scratch plate to scrape the solid particles on the isolation plate onto the collecting plate.

[0019] 3. The present invention sets an oil discharge mechanism. After the oil layer enters the oil storage plate, as the oil accumulates, the weight on the oil storage plate increases, and the oil storage plate moves downward. After moving to a certain distance, the baffle plate and the ground baffle plate are squeezed, so that the baffle plate moves upward along the support rod 1, and finally the oil flows from the oil outlet into the oil storage barrel 1, realizing the first step of oil separation.

[0020] 4. The present invention sets a centrifugal mechanism, and controls valve 2 to allow oil containing high viscosity, polymerized oil or chemically modified oil and water to enter the centrifugal bin through the outflow pipe. Then the servo motor drives the motor shaft to rotate, and then drives the drum to rotate, so that water with higher density is subjected to a larger centrifugal force and is thrown to the outside of the drum, while oil with lower density is subjected to a smaller centrifugal force and is concentrated on the inside of the drum. At the same time, after the water is thrown to the outside of the drum, it will pass through the streamlined plate, so that the water flow will flow into the bottom of the separation bin more quickly, and the internal oil layer will be at the top of the separation bin.

[0021] 5. The present invention provides a rotating mechanism, and pours a suitable demulsifier into the liquid storage column through the liquid inlet. Then the demulsifier enters the inner cavity of the rotating plate along the infusion tube. As the drum rotates, the rotating plate is also driven to rotate, further improving the centrifugal effect. At the same time, since the high-viscosity oil is very easy to adhere to the inner wall of the drum, the rotation of the rotating plate will drive the scratch tip to contact the oil adhered to the inner wall and separate the oil from the inner wall of the drum. Then the centrifugal force generated by the rotation will cause the telescopic spring to Stretch and make the push plate squeeze the demulsifier in the inner cavity of the rotating plate, and then the demulsifier will flow out from the leakage port and react chemically with high-viscosity oil, polymerized oil or chemically modified oil, destroying its original structure and reducing its binding degree with water, which is convenient for subsequent separation. As the push plate moves, the two pairs of scratch tips of the squeezing plate will also be scratched to prevent the leakage port from being covered by the oil layer, resulting in the demulsifier being unable to flow out. The stirring blades will also rotate with the water flow, thereby increasing the binding efficiency of the outflowing demulsifier and the mixed liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a bottom view of the structure of the present invention.

[0024] Figure 3 It is a structural cross-sectional view of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the gravity sedimentation mechanism of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the separation mechanism of the present invention.

[0027] Figure 6 It is a partial structural schematic diagram of the separation mechanism of the present invention.

[0028] Figure 7 It is a structural schematic diagram of the oil release mechanism of the present invention.

[0029] Figure 8 It is a structural schematic diagram of the collecting barrel mechanism of the present invention.

[0030] Fig. 9 It is a structural schematic diagram of the centrifugal separation mechanism of the present invention.

[0031] Fig.10 It is a structural sectional view of the centrifugal separation mechanism of the present invention.

[0032] Fig.11 It is a structural schematic diagram of the centrifugal mechanism of the present invention.

[0033] Fig.12 It is a structural schematic diagram of the rotating mechanism of the present invention.

[0034] Fig.13 It is a structural schematic diagram of the extrusion mechanism of the present invention.

[0035] In the figure: 1. support frame; 2. gravity sedimentation mechanism; 3. collection barrel mechanism; 4. bottom plate; 5. support foot; 6. centrifugal separation mechanism; 7. support plate 1; 8. servo motor; 21. sedimentation bin; 22. oil outlet pipe 1; 23. outflow pipe; 24. side groove; 25. collection plate; 26. separation mechanism; 27. control valve 1; 28. control valve 2; 29. ​​oil discharge mechanism; 261. arc rod; 262. isolation plate; 263. stopper; 264. wire; 265. fixed block; 266. side slide; 267. sliding block; 268. scratch plate; 291. oil storage plate; 292. oil outlet; 293. support rod 1; 294. bottom block; 295. baffle; 31. support plate; 32. oil storage barrel 1; 33. support rod 2; 34. resist Plate; 61, centrifugal bin; 62, top cover; 63, oil outlet pipe 2; 64, liquid pump 1; 65, oil storage barrel 2; 66, water outlet pipe; 67, liquid pump 2; 68, support plate 2; 69, centrifugal mechanism; 610, water storage barrel; 611, motor shaft; 691, drum; 692, streamlined plate; 693, liquid storage column; 694, rotating mechanism; 695, liquid inlet; 6941, rotating plate; 6942, infusion tube; 6943, scratch tip; 6944, leakage port; 6945, protruding plate; 6946, extrusion mechanism; 69461, telescopic spring; 69462, push plate; 69463, support rod 3; 69464, extrusion plate 2; 69465, support plate 3; 69466, shaft; 69467, stirring blade. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0037] Example 1, using Figure 1-Figure 13 A separation and purification device for treating oil-water mixed waste according to one embodiment of the present invention is described as follows.

[0038] like Figure 1-Figure 3 As shown, a separation and purification device for treating oil-water mixed waste of the present invention comprises a support frame 1, a gravity sedimentation mechanism 2 is fixedly connected to the top of the support frame 1, a collecting bucket mechanism 3 is fixedly connected to the outer surface of the support frame 1, a centrifugal separation mechanism 6 is fixedly connected to the outer surface of the gravity sedimentation mechanism 2, a bottom plate 4 is fixedly connected to the bottom of the centrifugal separation mechanism 6, supporting feet 5 are evenly arranged at the bottom of the bottom plate 4, a support plate 7 is fixedly connected to the bottom center of the bottom plate 4, and a servo motor 8 is fixedly connected to the outer surface of the support plate 7;

[0039] When a separation and purification device for treating oil-water mixed waste is working, the waste containing the oil-water mixture is first poured into the gravity sedimentation mechanism 2 to achieve preliminary separation of debris, water and oil. The separated oil will then flow into the collection barrel mechanism 3, and then the oil-water mixture that is difficult to separate will flow into the centrifugal separation mechanism 6 to achieve further separation and purification.

[0040] like Figure 4 As shown, the gravity sedimentation mechanism 2 includes a sedimentation bin 21, the top of the sedimentation bin 21 is fixedly connected to an oil outlet pipe 22, the top of the oil outlet pipe 22 is provided with a control valve 27, the bottom of the sedimentation bin 21 is fixedly connected to an outflow pipe 23, the top of the outflow pipe 23 is provided with a control valve 28, the inner wall of the sedimentation bin 21 is symmetrically provided with side grooves 24, the outer surface of the side grooves 24 is fixedly connected to a separation mechanism 26, the end of the sedimentation bin 21 away from the oil outlet pipe 22 is fixedly connected to a collecting plate 25, and the outer surface of the sedimentation bin 21 is fixedly connected to an oil discharge mechanism 29;

[0041] First, pour the waste with oil-water mixture into the sedimentation bin 21. After a period of sedimentation, most of the oil and water will separate. Since the density of oil is relatively small, it will be at the top of the sedimentation bin 21. Connect a Y-type double barrel pipe to the oil outlet pipe 22 and open the control valve 27 to allow the oil layer at the top to flow into the oil discharge mechanism 29 and drive the separation mechanism 26 to start working.

[0042] like Figure 5-Figure 6 As shown, the separation mechanism 26 includes an arc-shaped rod 261, the outer surface of which is slidably connected to an isolation plate 262, a wire 264 is symmetrically arranged on the top of the isolation plate 262, a stopper 263 is fixedly connected to the top of the arc-shaped rod 261, an end of the wire 264 away from the isolation plate 262 is fixedly connected to a fixed block 265, side slides 266 are arranged at both ends of the isolation plate 262, a sliding block 267 is slidably connected to the inner wall of the side slide 266, and a scratch plate 268 is fixedly connected to the opposite surface of the sliding block 267.

[0043] When pouring in the waste, since the waste contains not only a water-oil mixture but also fine solid particles, such as dust, metal debris, fibers, etc., which may be mixed with oil and water and easily clog the separation equipment or affect the separation effect during the separation process, the isolation plate 262 will block the fine solid particles to prevent these particles from entering the subsequent centrifugal separation mechanism 6. At the same time, as the oil layer enters the oil discharge mechanism 29, it will drive the wire 264 to move downward and move the isolation plate 262 along the arc rod 261. When it moves to the top of the arc rod 261, it will be blocked. At this time, the isolation plate 262 will be in an inclined state, and the sliding plate will slide downward along the side slide 266 and drive the scratch plate 268 to scrape the solid particles on the isolation plate 262 onto the collecting plate 25.

[0044] The bottom of the sedimentation bin 21 is fixedly connected to the top of the support frame 1 , the bottom of the arc rod 261 is fixedly connected to the inner wall of the side groove 24 , and the outer surface of the isolation plate 262 is slidably connected to the inner wall of the side groove 24 .

[0045] like Figure 7 As shown, the oil drain mechanism 29 includes an oil storage plate 291, the inner wall of the oil storage plate 291 is symmetrically provided with an oil outlet 292, the top of the oil storage plate 291 is symmetrically provided with a support rod 293, the bottom of the support rod 293 is fixedly connected with a bottom block 294, the outer surface of the support rod 293 is slidably provided with a baffle 295, and the baffle 295 and the oil outlet 292 are in the same horizontal plane.

[0046] The outer surface of the oil storage plate 291 is slidably connected to the outer surface of the sedimentation bin 21 , and the outer surface of the oil storage plate 291 is fixedly connected to a side of the fixing block 265 away from the wire line 264 .

[0047] like Figure 8 As shown, the collecting barrel mechanism 3 includes a supporting plate 31, one end of the supporting plate 31 is fixedly connected to the outer surface of the supporting frame 1, the top of the supporting plate 31 is fixedly connected to an oil storage barrel 32, the top of the oil storage barrel 32 is fixedly connected to a supporting rod 2 33, and the top of the supporting rod 2 33 is fixedly connected to a baffle plate 34.

[0048] After the oil layer enters the oil storage plate 291, as the oil accumulates, the weight on the oil storage plate 291 increases, and the oil storage plate 291 will move downward. After moving to a certain distance, the baffle plate 295 and the ground baffle plate 295 will be squeezed, so that the baffle plate 295 moves upward along the support rod 293, and finally the oil flows from the oil outlet 292 into the oil storage barrel 32, realizing the first step of oil separation.

[0049] The specific workflow is as follows:

[0050] During operation, the waste with oil-water mixture is first poured into the sedimentation bin 21. After a period of sedimentation, most of the oil and water will separate. Since the density of the oil is relatively small, it will be at the top of the sedimentation bin 21. A Y-shaped double barrel pipe is connected to the oil outlet pipe 22 and the control valve 27 is opened to allow the oil layer at the top to flow into the oil discharge mechanism 29 and drive the separation mechanism 26 to start working. When pouring the waste, since the waste contains not only a water-oil mixture but also fine solid particles, the isolation plate 262 will block the fine solid particles to prevent these particles from entering the subsequent centrifugal separation mechanism 6. At the same time, as the oil layer enters the oil discharge mechanism 29, it will drive the wire 264 to move downward and make the oil layer flow into the oil discharge mechanism 29. The isolation plate 262 moves along the arc rod 261, and will be blocked when it moves to the top of the arc rod 261. At this time, the isolation plate 262 will be in an inclined state, and the sliding plate will slide downward along the side slide 266 and drive the scratch plate 268 to scrape the solid particles on the isolation plate 262 onto the collecting plate 25. At the same time, after the oil layer enters the oil storage plate 291, as the oil accumulates, the weight on the oil storage plate 291 increases, and the oil storage plate 291 will move downward. After moving to a certain distance, the baffle plate 295 and the ground baffle plate 295 will be squeezed, so that the baffle plate 295 moves upward along the support rod 293, and finally the oil flows from the oil outlet 292 into the oil storage barrel 32, realizing the first step of oil separation.

[0051] Example 2, using Figure 1-Figure 13 A separation and purification device for treating oil-water mixed waste according to one embodiment of the present invention is described as follows.

[0052] like Figure 9-10As shown, a separation and purification device for treating oil-water mixed waste of the present invention is based on the first embodiment, and the centrifugal separation mechanism 6 includes a centrifugal chamber 61, the top of the centrifugal chamber 61 is fixedly connected to a top cover 62, the outer surface of the centrifugal chamber 61 is fixedly connected to an oil outlet pipe 63, the oil outlet pipe 63 is provided with a liquid pump 64, the bottom of the oil outlet pipe 63 is fixedly connected to an oil storage barrel, the bottom of the centrifugal chamber 61 is fixedly connected to a water outlet pipe 66, the top of the water outlet pipe 66 is provided with a liquid pump 67, the bottom of the water outlet pipe 66 is fixedly connected to a water storage barrel 610, the output end of the servo motor 8 is fixedly connected to a motor shaft 611, the top of the motor shaft 611 is fixedly connected to a centrifugal mechanism 69, and the outer surface of the liquid pump 64 is fixedly connected to a support plate 68.

[0053] like Fig.11 As shown, the centrifugal mechanism 69 includes a rotating drum 691, the outer surface of which is evenly provided with streamlined plates 692, the inner wall of the rotating drum 691 is fixedly connected with a liquid storage column 693, the top of the liquid storage column 693 is fixedly connected with a liquid inlet 695, and the outer surface of the liquid storage column 693 is evenly provided with a rotating mechanism 694.

[0054] Through the control valve 28, oil containing high viscosity, polymerized oil or chemically modified oil and water enter the centrifugal chamber 61 through the outflow pipe 23, and then the servo motor 8 will drive the motor shaft 611 to rotate, and then drive the drum 691 to rotate, so that the water with higher density will be subjected to a larger centrifugal force and will be thrown to the outside of the drum 691, while the grease with lower density will be subjected to a smaller centrifugal force and will be concentrated on the inside of the drum 691. At the same time, after the water is thrown to the outside of the drum 691, it will pass through the streamlined plate 692, so that the water flow will flow into the bottom of the separation chamber more quickly, and the internal oil layer will be at the top of the separation chamber.

[0055] like Fig.12 As shown, the rotating mechanism 694 includes a rotating plate 6941, the top of the rotating plate 6941 is fixedly connected to an infusion tube 6942, the top of the infusion tube 6942 is fixedly connected to the outer surface of the liquid storage column 693, a scratching tip 6943 is provided at the end of the rotating plate 6941 away from the liquid storage column 693, the outer surface of the scratching tip 6943 is provided with a leakage port 6944, the outer surface of the rotating plate 6941 is fixedly connected to a protruding plate 6945, and the inner wall of the rotating plate 6941 is fixedly connected to an extrusion mechanism 6946.

[0056] A suitable demulsifier is poured into the liquid storage column 693 through the liquid inlet 695, and then the demulsifier enters the inner cavity of the rotating plate 6941 through the infusion tube 6942. As the drum 691 rotates, the rotating plate 6941 will also be driven to rotate, further improving the centrifugal effect. At the same time, since the high-viscosity oil will easily adhere to the inner wall of the drum 691, the rotation of the rotating plate 6941 will drive the scratch tip 6943 to contact the oil adhered to the inner wall and separate the oil from the inner wall of the drum 691.

[0057] like Fig.13 As shown, the extrusion mechanism 6946 includes a telescopic spring 69461, one end of the telescopic spring 69461 is fixedly connected to a push plate 69462, the end of the push plate 69462 away from the telescopic spring 69461 is fixedly connected to a support rod three 69463, the end of the support rod three 69463 away from the push plate 69462 is fixedly connected to an extrusion plate two 69464, support plates three 69465 are symmetrically arranged at both ends of the extrusion plate two 69464, the opposite surface of the support plate three 69465 is rotatably connected to a rotating shaft 69466, and the outer surface of the rotating shaft 69466 is fixedly connected to a stirring blade 69467.

[0058] The centrifugal force generated by the rotation will stretch the telescopic spring 69461 and cause the pushing plate 69462 to squeeze the demulsifier in the inner cavity of the rotating plate 6941. The demulsifier will then flow out from the leakage port 6944 and react chemically with the high-viscosity oil, polymerized oil or chemically modified oil, destroying its original structure and reducing its degree of binding with water, making subsequent separation easier. As the pushing plate 69462 moves, the squeezing plate 2 69464 will also cause the scratch tip 6943 to be scratched to prevent the leakage port 6944 from being covered by the oil layer, which would prevent the demulsifier from flowing out. The stirring blade 69467 will also rotate with the water flow, thereby increasing the binding efficiency of the flowing demulsifier and the mixed liquid.

[0059] Finally, after the separation chamber is separated by centrifugation, the oil layer at the top will flow out from the oil outlet pipe 63 and enter the oil storage barrel 65. After the oil is pumped out, the water layer at the bottom will flow into the water storage barrel 610 through the water outlet pipe 66.

[0060] The bottom of the rotating drum 691 is fixedly connected to the top of the motor shaft 611 , one end of the rotating plate 6941 is fixedly connected to the outer surface of the liquid storage column 693 , and one end of the telescopic spring 69461 away from the pushing plate 69462 is fixedly connected to the inner wall of the rotating plate 6941 .

[0061] The specific workflow is as follows:

[0062] During operation, the servo motor 8 drives the motor shaft 611 to rotate, and then drives the drum 691 to rotate, so that the water with higher density will be subjected to a larger centrifugal force and will be thrown to the outside of the drum 691, while the oil with lower density will be subjected to a smaller centrifugal force and will be concentrated on the inside of the drum 691. At the same time, after the water is thrown to the outside of the drum 691, it will pass through the streamlined plate 692, so that the water will flow into the bottom of the separation chamber more quickly, and the internal oil layer will be at the top of the separation chamber. A suitable demulsifier is poured into the liquid storage column 693 through the liquid inlet 695, and then the demulsifier will enter the inner cavity of the rotating plate 6941 through the infusion tube 6942. As the drum 691 rotates, the rotating plate 6941 will also be driven to rotate, further enhancing the centrifugal effect. At the same time, since the high-viscosity oil will easily adhere to the inner wall of the drum 691, as The rotation of the rotating plate 6941 will drive the scratch tip 6943 to contact the oil attached to the inner wall and separate the oil from the inner wall of the drum 691. Then, the centrifugal force generated by the rotation will stretch the telescopic spring 69461 and cause the push plate 69462 to squeeze the demulsifier in the inner cavity of the rotating plate 6941. Then, the demulsifier will flow out from the leakage port 6944. As the push plate 69462 moves, the squeezing plate 2 69464 will also drive the scratch tip 6943 to prevent the leakage port 6944 from being covered by the oil layer, resulting in the demulsifier being unable to flow out. The stirring blade 69467 will also rotate with the water flow, thereby increasing the combination efficiency of the outflowing demulsifier and the mixed liquid. Finally, the top oil layer will flow out from the oil outlet pipe 2 63 and enter the oil storage barrel 2 65. After the oil is pumped out, the water layer at the bottom will flow into the water storage barrel 610 through the water outlet pipe 66.

[0063] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A separation and purification device for treating oil-water mixed waste, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly connected to a gravity sedimentation mechanism (2), the outer surface of the support frame (1) is fixedly connected to a collection bucket mechanism (3), the outer surface of the gravity sedimentation mechanism (2) is fixedly connected to a centrifugal separation mechanism (6), the bottom of the centrifugal separation mechanism (6) is fixedly connected to a bottom plate (4), the bottom of the bottom plate (4) is evenly provided with support feet (5), the bottom center of the bottom plate (4) is fixedly connected to a support plate 1 (7), and the outer surface of the support plate 1 (7) is fixedly connected to a servo motor (8); The gravity sedimentation mechanism (2) comprises a sedimentation bin (21), the top of the sedimentation bin (21) is fixedly connected to an oil outlet pipe (22), the top of the oil outlet pipe (22) is provided with a control valve (27), the bottom of the sedimentation bin (21) is fixedly connected to an outflow pipe (23), the top of the outflow pipe (23) is provided with a control valve (28), the inner wall of the sedimentation bin (21) is symmetrically provided with side grooves (24), the outer surface of the side grooves (24) is fixedly connected to a separation mechanism (26), the end of the sedimentation bin (21) away from the oil outlet pipe (22) is fixedly connected to a collecting plate (25), and the outer surface of the sedimentation bin (21) is fixedly connected to an oil discharge mechanism (29); The separation mechanism (26) comprises an arc-shaped rod (261), the outer surface of which is slidably connected to an isolation plate (262), the top of which is symmetrically provided with an iron wire (264), the top of which is fixedly connected to a stopper (263), the end of which away from the isolation plate (262) is fixedly connected to a fixed block (265), side slideways (266) are provided at both ends of the isolation plate (262), the inner wall of which is slidably connected to a sliding block (267), and the opposite surface of the sliding block (267) is fixedly connected to a scratch plate (268).

2. The separation and purification equipment for treating oil-water mixed waste according to claim 1, characterized in that: The bottom of the sedimentation bin (21) is fixedly connected to the top of the support frame (1), the bottom of the arc rod (261) is fixedly connected to the inner wall of the side groove (24), and the outer surface of the isolation plate (262) is slidably connected to the inner wall of the side groove (24).

3. The separation and purification equipment for treating oil-water mixed waste according to claim 1, characterized in that: The oil discharge mechanism (29) comprises an oil storage plate (291), the inner wall of the oil storage plate (291) is symmetrically provided with an oil outlet (292), the top of the oil storage plate (291) is symmetrically provided with a support rod (293), the bottom of the support rod (293) is fixedly connected with a bottom block (294), and the outer surface of the support rod (293) is slidably provided with a baffle (295), and the baffle (295) and the oil outlet (292) are in the same horizontal plane.

4. The separation and purification equipment for treating oil-water mixed waste according to claim 3, characterized in that: The outer surface of the oil storage plate (291) is slidably connected to the outer surface of the sedimentation bin (21), and the outer surface of the oil storage plate (291) is fixedly connected to a side of the fixing block (265) away from the iron wire (264).

5. The separation and purification equipment for treating oil-water mixed waste according to claim 1, characterized in that: The collecting barrel mechanism (3) comprises a supporting plate (31), one end of which is fixedly connected to the outer surface of the supporting frame (1), the top of which is fixedly connected to an oil storage barrel (32), the top of which is fixedly connected to a supporting rod (33), and the top of which is fixedly connected to a stop plate (34).

6. The separation and purification equipment for treating oil-water mixed waste according to claim 1, characterized in that: The centrifugal separation mechanism (6) comprises a centrifugal chamber (61), the top of the centrifugal chamber (61) is fixedly connected to a top cover (62), the outer surface of the centrifugal chamber (61) is fixedly connected to an oil outlet pipe (63), the oil outlet pipe (63) is provided with a liquid pump (64), the bottom of the oil outlet pipe (63) is fixedly connected to an oil storage bucket, the bottom of the centrifugal chamber (61) is fixedly connected to a water outlet pipe (66), the water outlet pipe (66) is provided with a liquid pump (67), the bottom of the water outlet pipe (66) is fixedly connected to a water storage bucket (610), the output end of the servo motor (8) is fixedly connected to a motor shaft (611), the top of the motor shaft (611) is fixedly connected to a centrifugal mechanism (69), and the outer surface of the liquid pump (64) is fixedly connected to a support plate (68).

7. The separation and purification equipment for treating oil-water mixed waste according to claim 6, characterized in that: The centrifugal mechanism (69) comprises a rotating drum (691), the outer surface of which is evenly provided with streamlined plates (692), the inner wall of which is fixedly connected with a liquid storage column (693), the top of which is fixedly connected with a liquid inlet (695), and the outer surface of which is evenly provided with a rotating mechanism (694).

8. The separation and purification equipment for treating oil-water mixed waste according to claim 7, characterized in that: The rotating mechanism (694) comprises a rotating plate (6941), the top of the rotating plate (6941) is fixedly connected to an infusion tube (6942), the top of the infusion tube (6942) is fixedly connected to the outer surface of the liquid storage column (693), a scratching tip (6943) is provided at one end of the rotating plate (6941) away from the liquid storage column (693), the outer surface of the scratching tip (6943) is provided with a liquid leakage port (6944), the outer surface of the rotating plate (6941) is fixedly connected to a protruding plate (6945), and the inner wall of the rotating plate (6941) is fixedly connected to an extrusion mechanism (6946).

9. The separation and purification equipment for treating oil-water mixed waste according to claim 8, characterized in that: The extrusion mechanism (6946) includes a telescopic spring (69461), one end of the telescopic spring (69461) is fixedly connected to a push plate (69462), the end of the push plate (69462) away from the telescopic spring (69461) is fixedly connected to a support rod three (69463), the end of the support rod three (69463) away from the push plate (69462) is fixedly connected to an extrusion plate two (69464), support plates three (69465) are symmetrically arranged at both ends of the extrusion plate two (69464), the opposite surface of the support plate three (69465) is rotatably connected to a rotating shaft (69466), and the outer surface of the rotating shaft (69466) is fixedly connected to a stirring blade (69467).

10. The separation and purification equipment for treating oil-water mixed waste according to claim 9, characterized in that: The bottom of the rotating drum (691) is fixedly connected to the top of the motor shaft (611), one end of the rotating plate (6941) is fixedly connected to the outer surface of the liquid storage column (693), and one end of the telescopic spring (69461) away from the pushing plate (69462) is fixedly connected to the inner wall of the rotating plate (6941).

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