Oil-water separation device and separation method for food testing

Abstract

The invention discloses an oil-water separation device and a separation method for food detection, belonging to the technical field of food detection equipment. The device comprises a conical bucket and a liquid separation tube; an oil-water separation port is arranged on the top of the conical bucket, a peripheral edge is arranged on the side of the conical bucket, and a plurality of liquid separation ports and liquid separation tubes that are connected to each other are respectively arranged on the upper and lower sides of the bottom of the peripheral edge; a method for oil-water separation using the oil-water separation device comprises: vertically inserting the conical bucket into a containing groove, so that a grease layer rises upward from the middle side of the bottom of the conical bucket, flows through the oil-water separation port, the outer surface of the conical bucket and the liquid separation port, and enters into a plurality of liquid separation tubes; the application can optimize the efficiency of cleaning and maintenance of the device on the basis of ensuring the oil-water separation efficiency, thereby effectively avoiding cross-contamination of grease caused by repeated use of the equipment, and reducing the exposure time of the grease sample by isolating and storing the separated grease, thereby improving the accuracy of grease quality detection.

Description

Technical Field

[0001] The invention relates to the technical field of food testing equipment, in particular to an oil-water separation device and a separation method for food testing. Background Art

[0002] In the field of food testing, oil-water separation technology is an important part of assessing the oil content in food. By separating the oil and water in food and measuring the oil content, it ensures that it meets relevant food safety standards. It helps prevent food quality problems caused by excessive oil content and poor oil quality, such as poor taste, shortened shelf life and reduced nutritional value, and maintains product safety and consumer health.

[0003] The existing application number is CN202210467797.0, which is an oil-water separation device for food waste. The patent document discloses a method of utilizing the property of a buoy floating between oil and water with different densities. As the amount of liquid inside the container changes, the position of the buoy is automatically adjusted to control the flow or cutoff of the oil guide passage, thereby realizing the oil-water separation operation. Specifically, the overall density of the second buoy is adjusted between the density of water and oil in the sewage. As the water surface rises, the second buoy rises accordingly. When the water surface rises to a position close to the oil outlet, in order to prevent sewage from flowing out of the oil outlet, the second buoy drives the plug plate to rise, and the plug plate opens the water outlet. The sewage is discharged from the water outlet into the water tank, and the oil flows from the oil outlet into the oil storage barrel;

[0004] However, when using the technical solution in the above patent document, oil and water separation is carried out for a long time, and grease is easily accumulated on the surface of the mechanical parts with relatively complex structures in the patent document, which will cause the movement of the mechanical parts to be obstructed and affect their normal working efficiency; in addition, the equipment is difficult to clean, and when the oil component analysis is required, the separated oil will be contaminated, thereby affecting the accuracy of the detection result. Therefore, the present application provides an oil-water separation device and separation method for food detection. Summary of the invention

[0005] In order to address the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide an oil-water separation device for food testing, which can optimize the efficiency of cleaning and maintenance of the device on the basis of ensuring the oil-water separation efficiency, thereby effectively avoiding cross-contamination of oil and fat caused by multiple uses of the equipment, and by isolating and storing the separated oil and fat, reducing the exposure time of the oil and fat sample, thereby improving the accuracy of oil quality detection.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] Provided is an oil-water separation device for food testing, comprising a container, a conical bucket and a liquid separation tube; the conical bucket is movably installed in the container, the top of the conical bucket is provided with an oil-water separation port, the side of the conical bucket is integrally formed with a peripheral edge, the upper and lower sides of the bottom of the peripheral edge are respectively provided with a plurality of liquid separation ports and liquid separation tubes that are connected to each other at equal angles, and the liquid separation tube is rotatably installed in a slide groove at the bottom of the peripheral edge.

[0008] Wherein, a receiving tank for storing oil-water mixture is arranged at the lower end of the container, and the diameter of the bottom of the conical bucket corresponds to the inner diameter of the receiving tank;

[0009] Furthermore, a U-shaped frame is fixedly installed on the side of the conical bucket, an observation camera is provided on the lower middle side of the U-shaped frame, the observation camera is located directly above the oil-water separation port, and a vertical handle is fixedly installed on the upper middle side of the U-shaped frame, the end of the vertical handle extends toward the outside of the top opening of the container.

[0010] A method for oil-water separation using an oil-water separation device is also provided, comprising the following steps:

[0011] Step 1: Add an oil-water mixture into the holding tank at the lower end of the container, and add an additive that can promote oil-water separation into the oil-water mixture as needed;

[0012] Step 2: When the oil-water mixture is separated, the conical bucket is vertically inserted into the containing tank, so that the grease layer rises upward from the middle side of the bottom of the conical bucket, flows along the conical bucket with a gradually shrinking inner diameter to the oil-water separation port, and then is discharged to the outer surface of the conical bucket, and finally flows through the liquid separation port and enters the liquid separation pipe;

[0013] Step 3: Use an observation camera to monitor the grease flow state at the oil-water separation port. When the grease content decreases, lift the conical bucket upward to extract it from the containing tank;

[0014] Step 4: Rotate the vertical handle. Under the action of centrifugal force, the opening of the dispensing tube is staggered with the dispensing port. Utilize the magnetic sheet I and the magnetic sheet II at the corresponding position to maintain this staggered state and isolate the oil sample stored in the dispensing tube.

[0015] Furthermore, the container is installed on the placement area through a support seat, and a vertical track is also installed on the placement area. A lifting arm is vertically slidably installed in the vertical track. The vertical handle is rotatably installed on the lifting arm, and a second rotating driver for driving the vertical handle to rotate is installed on the lifting arm.

[0016] Furthermore, an arc-shaped sealing sheet capable of sealing the bottom of the liquid separation port is fixedly installed on the top of the liquid separation tube; magnetic sheets I are embedded and installed on both sides of the arc-shaped sealing sheet, and a plurality of magnetic sheets II capable of being connected to the magnetic sheet I through magnetic adsorption coupling are embedded and installed on the inner side wall of the slide groove.

[0017] Furthermore, an end cap is detachably mounted on the bottom of the dispensing tube, a telescopic driver is mounted on the lower side of the end cap, a piston I is fixedly mounted on the movable end of the telescopic driver, and the piston I passes through the end cap and is slidably connected to the dispensing tube.

[0018] Furthermore, an extrusion channel is fixedly disposed on the outer side of the top of the liquid separation tube and is connected to the extrusion channel, and a collecting tube II is connected to the extrusion channel.

[0019] Furthermore, a side sealing cover is detachably installed in the periphery, a collecting pipe I is installed in the side sealing cover, an introduction channel is fixed and connected to the outer side of the top of the side sealing cover, and the collecting pipe II is connected to the collecting pipe I through the introduction channel.

[0020] Furthermore, a flexible embedding seat is provided on the side of the side sealing cover close to the conical bucket axis, and a guide channel and a finger insertion hole are provided on the flexible embedding seat. The two ends of the guide channel are respectively connected to the introduction channel and the collection pipe II, and the collection pipe II can be detachably installed in the flexible embedding seat.

[0021] Furthermore, a cavity is provided on the side of the side sealing cover away from the axis of the conical bucket, a suction assembly is provided in the cavity, a sealing cover is detachably installed at the end of the cavity, the suction assembly includes a piston II and a magnetic end head, the piston II is slidably installed in the collection tube I, an exhaust hole is provided at the bottom of the collection tube I, the magnetic end head is slidably installed in the cavity, a screw rod II and a third rotating driver for driving the screw rod II to rotate are installed in the cavity, and the magnetic end head is connected to the magnetic core in the piston II through magnetic adsorption coupling.

[0022] Furthermore, a cleaning tank is provided at the upper end of the container, and a plurality of cleaning nozzles are fixedly and connectedly provided at equal angles on the side of the cleaning tank.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the oil-water separation device for food testing of the example of the present invention, the diameter of the bottom of the conical bucket corresponds to the inner diameter of the receiving tank, so that the bottom of the conical bucket fully covers the upper liquid surface of the receiving tank, thereby increasing the capacity of the upper layer of grease in the receiving tank; and the inner diameter of the conical bucket is small at the top and large at the bottom, and as the grease layer surges upward, the oil-water separation is more obvious, thereby ensuring the oil-water separation efficiency; after the grease layer passes through the oil-water separation port and flows into the outside of the conical bucket, the flow rate of the grease is slow, so that the solid residue can adhere to the outer side of the conical bucket and separate from the grease, and the use effect is good.

[0025] 2. The oil-water separation device for food testing in the example of the present invention controls the rotation of the vertical handle. Under the action of centrifugal force, the opening of the separation tube is staggered with the separation port, and the oil sample stored in the separation tube is isolated and stored, so that the oil sample will not be affected by oxygen in the air and become corrupt, thereby improving the accuracy of oil quality testing. In addition, multiple separation tubes can be used at the same time to divide the separated oil into multiple equal amounts for subsequent oil quality testing and heavy metal testing.

[0026] 3. In the oil-water separation device for food testing in the example of the present invention, a cleaning tank is provided at the upper end of the container, and a plurality of cleaning nozzles are fixedly and connectedly provided at equal angles on the side of the cleaning tank, and the other end of the cleaning nozzle is connected to a water pump. When the water pump is started, water flows through the plurality of cleaning nozzles to rinse the surface of the conical bucket. Since the outer surface of the conical bucket is smooth without dead angles, the conical bucket can be fully cleaned, thereby optimizing the efficiency of cleaning and maintenance of the device, avoiding cross-contamination of grease caused by multiple uses of the equipment, and shortening the waiting time during multiple grease separation operations.

[0027] 4. The oil-water separation device for food testing in the example of the present invention controls the vertical handle to rotate continuously at a high height. Under the action of centrifugal force, the opening of the separation tube is staggered with the separation port, so that the oil and fat samples stored in multiple separation tubes are isolated and stored. During the continuous rotation of the vertical handle, the oil and fat samples in the separation tubes are centrifuged to further purify the oil and fat samples originally stored in the separation tubes. The above operation does not require manual picking up of the separation tubes and transferring them to the centrifuge, thereby optimizing the oil-water separation process, having good operational convenience, and a high degree of overall automation of the equipment.

[0028] 5. The oil-water separation device for food testing in the example of the present invention controls piston I to slide in the separator tube, and pushes the grease after centrifugal separation into the collecting tube I through the collecting tube II for collection. In this process, the grease collected after the first separation and the grease collected after the second centrifugal separation are kept isolated from the external air, so that they will not be affected by the oxygen in the air and become corrupt, thereby further improving the accuracy of grease quality detection.

[0029] 6. In the oil-water separation device for food testing of the example of the present invention, when the separatory tube is kept in an inclined state, the extrusion channel is located directly above the separatory tube, so that the oil layer floating on the upper layer can be fully pushed into the collection tube II, thereby increasing the accuracy of the measurement of the oil content inside the food. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0031] Figure 1A schematic diagram of the overall structure of the oil-water separation device provided by an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of a structure in which a plurality of liquid dispensing tubes provided in an embodiment of the present invention are placed vertically at the bottom of a conical bucket;

[0033] Figure 3 A schematic diagram of a structure in which a plurality of liquid dispensing tubes provided in an embodiment of the present invention are placed in an inclined state at the bottom of a conical bucket;

[0034] Figure 4 A cross-sectional view of a conical bucket and a peripheral edge provided by an embodiment of the present invention;

[0035] Figure 5 For the present invention Figure 4 The enlarged view of point A in the middle;

[0036] Figure 6 An exploded view of the structure of the liquid dispensing tube, the end cover and the telescopic actuator provided in an embodiment of the present invention;

[0037] Figure 7 A schematic diagram of the structure of a conical bucket, a U-shaped frame and an observation camera provided in an embodiment of the present invention;

[0038] Figure 8 A schematic diagram of the structure of the liquid dispensing port, the slide trough and the magnetic sheet II provided in an embodiment of the present invention;

[0039] Fig. 9 The structural decomposition of the side sealing cover, the flexible embedded seat and the sealing cover provided in the embodiment of the present invention Figure 1 ;

[0040] Fig.10 The structural decomposition of the side sealing cover, the flexible embedded seat and the sealing cover provided in the embodiment of the present invention Figure 2 ;

[0041] Fig.11 A cross-sectional view of a side sealing cover and a flexible embedded seat provided in an embodiment of the present invention.

[0042] In the figure: 11, placement area, 12, vertical track, 13, screw rod I, 14, first rotation driver, 15, support seat, 16, container, 17, cleaning nozzle, 21, conical bucket, 211, oil-water separation port, 22, surrounding edge, 23, liquid separation port, 24, slide, 25, magnetic sheet II, 26, U-shaped frame, 261, observation camera, 27, vertical handle, 28, lifting arm, 29, second rotation driver, 31, liquid separation pipe, 311, extrusion channel, 3 12. End cover, 32. Arc sealing sheet, 33. Magnetic sheet I, 34. Telescopic actuator, 35. Piston I, 41. Collecting tube I, 42. Exhaust hole, 43. Piston II, 44. Magnetic core, 51. Side sealing cover, 511. Inlet channel, 512. Insert column, 513. Collecting tube II, 52. Flexible embedded seat, 521. Diversion channel, 522. Finger jack, 53. Sealing cover, 54. Screw II, 55. Magnetic end, 56. Third rotating actuator. DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0044] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0045] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0049] Embodiment 1:

[0050] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the present embodiment provides an oil-water separation device and separation method for food testing, comprising a container 16, a conical bucket 21 and a liquid separation tube 31; the lower end of the container 16 is provided with a receiving tank for storing an oil-water mixture, the conical bucket 21 is movably installed in the container 16, the top of the conical bucket 21 is provided with an oil-water separation port 211, the side of the conical bucket 21 is integrally formed with a peripheral edge 22, and the upper and lower sides of the bottom of the peripheral edge 22 are respectively provided with a plurality of liquid separation ports 23 and a liquid separation tube 31 that are connected to each other at equal angles, and the liquid separation tube 31 is rotatably installed in the slide groove 24 at the bottom of the peripheral edge 22.

[0051] like Figure 5 and Figure 6 As shown, an arc-shaped sealing sheet 32 ​​capable of blocking the bottom of the liquid dispensing port 23 is fixedly installed on the top of the liquid dispensing tube 31; magnetic sheets I 33 are embedded and installed on both sides of the arc-shaped sealing sheet 32, and a plurality of magnetic sheets II 25 capable of being coupled with the magnetic sheets I 33 by magnetic adsorption are embedded and installed on the inner side wall of the slide groove 24; Figure 8 As shown, the magnetic sheets II 25 are provided in plurality, so that the liquid dispensing tube 31 can be stably placed in various tilt angles.

[0052] like Figure 1 and Figure 7 As shown, a U-shaped frame 26 is fixedly installed on the side of the conical bucket 21, and an observation camera 261 is provided on the lower middle side of the U-shaped frame 26. The observation camera 261 is located directly above the oil-water separation port 211, and a vertical handle 27 is fixedly installed on the upper middle side of the U-shaped frame 26. The end of the vertical handle 27 extends toward the outside of the top opening of the container 16.

[0053] The method for oil-water separation using the oil-water separation device of the present application comprises the following steps:

[0054] Step 1: Add an oil-water mixture into the holding tank at the lower end of the container 16, and add an additive that can promote oil-water separation to the oil-water mixture as needed;

[0055] Step 2: When the oil-water mixture is separated, hold the vertical handle 27 and vertically insert the conical bucket 21 into the containing tank, so that the grease layer rises upward from the middle side of the bottom of the conical bucket 21, flows along the conical bucket 21 with a gradually shrinking inner diameter to the oil-water separation port 211, and then is discharged to the outer surface of the conical bucket 21, and finally flows through the liquid separation port 23 and enters the liquid separation pipe 31;

[0056] Step 3: Use the observation camera 261 to monitor the grease flow state at the oil-water separation port 211. When the grease content decreases, lift the conical bucket 21 upward to extract it from the containing tank;

[0057] Step 4: Hold and rotate the vertical handle 27. Under the action of centrifugal force, the opening of the dispensing tube 31 is staggered with the dispensing port 23. The magnetic sheet I 33 and the magnetic sheet II 25 at the corresponding position are used to maintain this staggered state, and the oil sample stored in the dispensing tube 31 is isolated and stored.

[0058] In step 1, the additive capable of promoting oil-water separation may be any one or more of surfactants, polymer additives, ester additives and demulsifiers available on the market.

[0059] In step 2, the bottom diameter of the conical bucket 21 corresponds to the inner diameter of the receiving tank, so that the bottom of the conical bucket 21 completely covers the upper liquid surface of the receiving tank, thereby increasing the capacity to absorb the grease in the upper layer of the receiving tank; the inner diameter of the conical bucket 21 is small at the top and large at the bottom, and as the grease layer surges upward, the oil-water separation is more obvious, thereby ensuring the efficiency of oil-water separation; after the grease layer passes through the oil-water separation port 211 and flows into the outside of the conical bucket 21, the flow rate of the grease is slow, so that the solid residue can adhere to the outer side of the conical bucket 21 and separate from the grease, thereby achieving a good use effect.

[0060] In step four, the oil and fat samples stored in the separation tube 31 are isolated and stored so that the oil and fat samples will not be affected by oxygen in the air and become corrupt, thereby improving the accuracy of oil and fat quality detection. In addition, multiple separation tubes 31 are used at the same time to divide the separated oil and fat into multiple equal amounts for subsequent oil quality detection and heavy metal detection.

[0061] The above operation in this embodiment can be repeated for multiple times so as to fully separate the oil-water mixture in the containing tank; the lifting, moving and rotating control of the vertical handle 27 can be carried out by manual control.

[0062] In order to facilitate the cleaning of the conical bucket 21, Figure 1 As shown, a cleaning tank is provided at the upper end of the container 16, and a plurality of cleaning nozzles 17 are fixedly and connectedly provided at equal angle intervals on the side of the cleaning tank. The other end of the cleaning nozzle 17 is connected to a water pump. The water pump is started so that water flows through the plurality of cleaning nozzles 17 to rinse the surface of the conical bucket 21. Since the outer surface of the conical bucket 21 is smooth without dead angles, the conical bucket 21 can be fully cleaned, thereby optimizing the efficiency of cleaning and maintenance of the device, avoiding cross-contamination of grease caused by repeated use of the equipment, and shortening the waiting time during multiple grease separation operations.

[0063] Embodiment 2:

[0064] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 1 As shown, in this embodiment, the container 16 is installed on the placement area 11 through the support seat 15, and the placement area 11 is also installed with a vertical track 12. A lifting arm 28 is vertically slidably installed in the vertical track 12. The vertical handle 27 is rotatably installed on the lifting arm 28, and a second rotating driver 29 for driving the vertical handle 27 to rotate is installed on the lifting arm 28.

[0065] Start the second rotating driver 29 to drive the vertical handle 27 to rotate. Under the action of centrifugal force, the opening of the separatory tube 31 is staggered with the separatory port 23, so that the oil samples stored in multiple separatory tubes 31 are isolated and stored. During the continuous rotation of the vertical handle 27, the oil samples in the separatory tube 31 are centrifuged to further purify the oil samples originally stored in the separatory tube 31. The above operation does not require manual picking up of the separatory tube 31 and transferring it to the centrifuge, thereby optimizing the oil-water separation process, having good operational convenience and a high degree of overall automation of the equipment.

[0066] In the present application, the lifting and lowering control method of the lifting arm 28 is as follows: a screw rod Ⅰ13 is rotatably installed in the vertical track 12, and a first rotating driver 14 for driving the screw rod Ⅰ13 to rotate is installed on the vertical track 12, and the screw rod Ⅰ13 is connected to the lifting arm 28 through a threaded transmission; start the first rotating driver 14, control the rotation of the screw rod Ⅰ13, and drive the conical bucket 21 to move vertically up and down in the container 16.

[0067] Compared with the control method of the vertical handle 27 in the first embodiment, the above-mentioned solution of this embodiment can reduce the workload of the operator and improve the efficiency of automated control.

[0068] Embodiment three:

[0069] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment, an extrusion channel 311 is fixedly and connectedly provided on the outer side of the top of the liquid dispensing tube 31, and a collecting tube II 513 is connectedly provided on the extrusion channel 311. An end cap 312 is detachably installed on the bottom of the liquid dispensing tube 31, and a telescopic driver 34 is installed on the lower side of the end cap 312. A piston I 35 is fixedly installed on the movable end of the telescopic driver 34, and the piston I 35 passes through the end cap 312 and is slidably connected to the liquid dispensing tube 31.

[0070] Start the telescopic driver 34, control the piston I 35 to slide in the liquid separation tube 31, and push the grease after centrifugal separation into the collection tube II 513. Figure 5 As shown, by utilizing the stable adsorption of magnetic sheet I 33 and magnetic sheet II 25, the separatory tube 31 is kept in an inclined state. At this time, the extrusion channel 311 is located directly above the separatory tube 31, so that the oil layer floating on the upper layer can be fully pushed into the collection tube II 513, thereby increasing the accuracy of the measurement of the oil content inside the food.

[0071] In the present application, both the separation tube 31 and the collection tube II 513 can be made of transparent material to facilitate observation of the oil stratification after centrifugation.

[0072] Embodiment 4:

[0073] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 4 and Figure 5 As shown, in this embodiment, a side sealing cover 51 is detachably installed in the surrounding edge 22, and the side sealing cover 51 is easy to clean and maintain. A collecting pipe I 41 is installed in the side sealing cover 51, and an introduction channel 511 is fixed and connected to the outer side of the top of the side sealing cover 51, and the collecting pipe II 513 is connected to the collecting pipe I 41 through the introduction channel 511.

[0074] like Fig. 9 and Fig.10 As shown, the bottom and sides of the side sealing cover 51 are respectively provided with plug posts and slide bars, which are slidably engaged with the surrounding edge 22 to increase the installation firmness of the side sealing cover 51 at the side of the surrounding edge 22.

[0075] Start the telescopic drive 34, control the piston I35 to slide in the liquid separation tube 31, and push the grease after centrifugal separation to the collection tube I41 through the collection tube II513 for collection. In this process, the grease collected after the first separation and the grease separated by the second centrifugation are kept isolated from the external air, so that they will not be affected by the oxygen in the air and become corrupt, thereby further improving the accuracy of grease quality detection.

[0076] In order to improve the convenience of disassembly of the collecting pipe I 41 in the side sealing cover 51, as shown in FIG. Figure 5 As shown, a flexible embedding seat 52 is provided on one side of the side sealing cover 51 close to the axis of the conical bucket 21, and a guide channel 521 and a finger insertion hole 522 are provided on the flexible embedding seat 52, so that the two ends of the guide channel 521 are respectively connected to the introduction channel 511 and the collection pipe II 513, and the collection pipe II 513 is detachably installed in the flexible embedding seat 52;

[0077] The flexible embedding seat 52 is made of elastic and deformable material, such as rubber or silicone, and the collecting tube II 513 can be inserted from Fig. 9 As shown, the side opening of the flexible embedded seat 52 is directly squeezed into between the side sealing cover 51 and the flexible embedded seat 52;

[0078] When it is necessary to remove the collecting tube II 513 from the side sealing cover 51, insert the thumb and index finger. Fig. 9 At the finger insertion hole 522 shown, the collection tube II 513 is pulled out by utilizing the elastic deformation of the flexible embedding seat 52, and the operation is simple and convenient.

[0079] Embodiment five:

[0080] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Fig. 9 , Fig.10 and Fig.11 As shown, in this embodiment, when the purity of the oil initially entering the separatory tube 31 is high, the proportion of oil after centrifugal separation will also be at a high level, so that when using the collection tube II 513 to transport this part of the oil to the collection tube I 41, some oil will remain in the separatory tube 31.

[0081] Based on the above situation, a suction assembly is added in the side sealing cover 51 to suck the oil remaining in the collecting tube II 513 into the collecting tube I 41, so as to further increase the accuracy of the measurement of the oil content inside the food.

[0082] Specifically: a cavity is provided on the side of the side sealing cover 51 away from the axis of the conical bucket 21, a suction assembly is provided in the cavity, a sealing cover 53 is detachably installed at the end of the cavity, the suction assembly includes a piston II 43 and a magnetic end head 55, the piston II 43 is slidably installed in the collection tube I 41, an exhaust hole 42 is provided at the bottom of the collection tube I 41, the magnetic end head 55 is slidably installed in the cavity, a screw rod II 54 and a third rotating driver 56 for driving the screw rod II 54 to rotate are installed in the cavity, and the magnetic end head 55 is connected to the magnetic core 44 in the piston II 43 through magnetic adsorption coupling.

[0083] When it is necessary to suck the grease remaining in the collecting tube II 513 into the collecting tube I 41;

[0084] First, adjust the liquid dispensing tube 31 to a vertical state so that the opening of the liquid dispensing tube 31 is connected to the liquid dispensing port 23;

[0085] Afterwards, the control piston I 35 moves downward, and since the liquid dispensing tube 31 is connected to the external atmosphere, the grease inside the collecting tube II 513 will not be drawn back;

[0086] Finally, the third rotary driver 56 is started to control the rotation of the screw rod II 54, driving the magnetic end 55 to slide vertically in the cavity, and utilizing the magnetic adsorption between the magnetic end 55 and the magnetic core 44 to drive the piston II 43 to move downward in the collecting tube I 41, thereby sucking the oil remaining in the collecting tube II 513 into the collecting tube I 41, thereby increasing the accuracy of the measurement of the oil content inside the food.

[0087] In the present application, the telescopic drive uses a linear electric cylinder or a hydraulic cylinder that can be purchased on the market; the rotation drive uses a stepper motor or a servo motor that can be purchased on the market.

[0088] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

[0089] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described here in detail.

Claims

1. An oil-water separation device for food testing, comprising a container (16), characterized in that: A conical bucket (21) is movably installed in the container (16), an oil-water separation port (211) is provided at the top of the conical bucket (21), a peripheral edge (22) is integrally formed on the side of the conical bucket (21), a receiving groove for storing an oil-water mixture is provided at the lower end of the container (16), the bottom diameter of the conical bucket (21) corresponds to the inner diameter of the receiving groove, and the inner diameter of the conical bucket (21) is smaller at the top and larger at the bottom; A U-shaped frame (26) is fixedly mounted on the side of the conical bucket (21); an observation camera (261) is provided on the lower middle side of the U-shaped frame (26); the observation camera (261) is located directly above the oil-water separation port (211); a vertical handle (27) is fixedly mounted on the upper middle side of the U-shaped frame (26); the end of the vertical handle (27) extends toward the outside of the top opening of the container (16); A plurality of mutually communicating liquid dispensing ports (23) and liquid dispensing pipes (31) are respectively arranged at equal angular intervals on the upper and lower sides of the bottom of the peripheral edge (22); the liquid dispensing pipes (31) are rotatably mounted in a slide groove (24) at the bottom of the peripheral edge (22); The container (16) is installed on one side of the top of the placement area (11) via a support seat (15); a vertical track (12) is installed on the other side of the top of the placement area (11); a lifting arm (28) is vertically slidably installed in the vertical track (12); a vertical handle (27) is rotatably installed on the lifting arm (28); and a second rotation driver (29) for driving the vertical handle (27) to rotate is installed on the lifting arm (28); The vertical handle (27) is rotated, and under the action of centrifugal force, the opening of the liquid separation tube (31) and the liquid separation port (23) are staggered, so that the oil sample stored in the liquid separation tube (31) is isolated and stored.

2. The oil-water separation device for food testing according to claim 1, characterized in that: An arc-shaped sealing sheet (32) capable of sealing the bottom of the liquid separation port (23) is fixedly mounted on the top of the liquid separation tube (31); Magnetic sheets I (33) are respectively embedded and installed on both sides of the arc-shaped sealing sheet (32), and a plurality of magnetic sheets II (25) capable of being connected to the magnetic sheets I (33) through magnetic adsorption coupling are embedded and installed on the inner side wall of the slide groove (24).

3. The oil-water separation device for food testing according to claim 2, characterized in that: The bottom of the liquid dispensing tube (31) is detachably mounted with an end cap (312), the lower side of the end cap (312) is mounted with a telescopic driver (34), the movable end of the telescopic driver (34) is fixedly mounted with a piston I (35), the piston I (35) passes through the end cap (312) and is slidably connected to the liquid dispensing tube (31).

4. The oil-water separation device for food testing according to claim 3, characterized in that: An extrusion channel (311) is fixedly disposed on the outer side of the top of the liquid separation tube (31) and is in communication with the extrusion channel (311), and a collection tube II (513) is in communication with the extrusion channel (311).

5. The oil-water separation device for food testing according to claim 4, characterized in that: A side sealing cover (51) is detachably mounted inside the peripheral edge (22), a collecting pipe I (41) is mounted inside the side sealing cover (51), an introduction channel (511) is fixedly disposed on the outer side of the top of the side sealing cover (51) and is in communication with the collecting pipe II (513), and the collecting pipe I (41) is connected to the collecting pipe I (41) via the introduction channel (511).

6. The oil-water separation device for food testing according to claim 5, characterized in that: A flexible embedding seat (52) is provided on one side of the side sealing cover (51) close to the axis of the conical bucket (21); a flow guide channel (521) and a finger insertion hole (522) are provided on the flexible embedding seat (52); two ends of the flow guide channel (521) are respectively connected to the introduction channel (511) and the collection pipe II (513); and the collection pipe II (513) is detachably installed in the flexible embedding seat (52).

7. The oil-water separation device for food testing according to claim 5, characterized in that: A cavity is provided on a side of the side sealing cover (51) away from the axis of the conical bucket (21), a suction assembly is provided in the cavity, and a sealing cover (53) is detachably mounted on the end of the cavity; The suction assembly comprises a piston II (43) and a magnetic end head (55). The piston II (43) is slidably mounted in a collection tube I (41). An exhaust hole (42) is provided at the bottom of the collection tube I (41). The magnetic end head (55) is slidably mounted in a cavity. A screw rod II (54) and a third rotation driver (56) for driving the screw rod II (54) to rotate are installed in the cavity. The magnetic end head (55) is connected to the magnetic core (44) in the piston II (43) by magnetic adsorption coupling.

8. The oil-water separation device for food testing according to claim 1, characterized in that: A cleaning tank is provided at the upper end of the container (16), and a plurality of cleaning nozzles (17) are provided on the side of the cleaning tank at fixed and equiangular intervals and in communication with each other.

9. A method for oil-water separation using the oil-water separation device for food testing according to claim 2, characterized in that: The following steps are involved: Step 1: Add an oil-water mixture into the containing tank at the lower end of the container (16), and add an additive capable of promoting oil-water separation to the oil-water mixture as required; Step 2: When the oil-water mixture is separated into layers, the conical bucket (21) is vertically inserted into the containing tank, so that the oil layer rises upward from the middle side of the bottom of the conical bucket (21), flows along the conical bucket (21) with a gradually shrinking inner diameter to the oil-water separation port (211), and then is discharged to the outer surface of the conical bucket (21), and finally flows through the liquid separation port (23) and enters the liquid separation pipe (31); Step 3: Using the observation camera (261) to monitor the grease flow state at the oil-water separation port (211), when the grease content decreases, the conical bucket (21) is lifted upward to extract the grease from the containing tank; Step 4: Rotate the vertical handle (27). Under the action of centrifugal force, the opening of the dispensing tube (31) is staggered with the dispensing port (23). The magnetic sheet I (33) and the magnetic sheet II (25) at the corresponding position are used to maintain this staggered state, and the oil sample stored in the dispensing tube (31) is isolated and stored.

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