Rigid-flexible combined ozone-liquid emulsion mixing and separating equipment and rigid-flexible combined ozone-liquid emulsion mixing and separating method

Abstract

The invention relates to the technical field of food processing, in particular to rigid-flexible combined ozone-liquid emulsion mixing and separating equipment and method.The rigid-flexible combined ozone-liquid emulsion mixing and separating equipment comprises a rigid-flexible combined static mixing device, a barrel cyclone separation device, a multi-pipe separation device and a storage and separation device; a flexible static mixer element in the rigid-flexible combined static mixing device not only can cut, mix and converge ozone gas and liquid emulsion, but also can generate a chaos stirring effect to efficiently complete the mixing, stirring and sterilizing process, and two stirrers in the barrel cyclone separation device are matched for stirring, so that the separation effect can be improved; the multi-pipe separation device performs separation operation under the action of gravity, inertia, buoyancy and the like, and the storage and separation device completes final separation through multiple stirring and filtering. According to the invention, the gas-liquid mass transfer effect between the liquid emulsion and the ozone can be improved, the sterilization effect can be improved, and the gas-liquid separation efficiency between the ozone and the liquid emulsion can be enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of food processing, and in particular to a rigid-flexible combined ozone-liquid emulsion mixing separation device and method. Background Art

[0002] The safety of dairy foods is generally achieved through thermal processing (pasteurization and sterilization). Currently, due to the obvious advantages of ozone in the sterilization of dairy foods, such as small residual effect after use, rapid decomposition into oxygen, minimal pollution; no need for thermal processing, little effect on the properties of dairy foods; and the ability to effectively extend the shelf life of food, it has attracted widespread attention.

[0003] However, there are two main problems in using ozone to sterilize dairy foods (the present invention is aimed at liquid dairy foods, hereinafter referred to as liquid emulsion). First, liquid emulsions are basically non-Newtonian fluids with relatively high viscosity and have complex nonlinear rheological properties. The current traditional gas-liquid mixing equipment and production processes often have a lot of problems such as low gas-liquid mass transfer efficiency and poor mixing uniformity, making it difficult to ensure the sterilization effect; second, after sterilization, the gas-liquid separation efficiency and separation quality of ozone-liquid emulsion are low. Therefore, according to the two-phase dispersion characteristics of ozone-liquid emulsion, designing and inventing suitable mixing-separation equipment and related production process methods has important practical significance for enhancing the gas-liquid two-phase mass transfer efficiency, improving the ozone sterilization effect and gas-liquid separation performance. Summary of the invention

[0004] In view of the problems of low gas-liquid mass transfer efficiency, poor mixing uniformity and poor separation effect in gas-liquid mixing equipment in the prior art, the present invention provides a rigid-flexible combination of ozone-liquid emulsion mixing separation equipment and method, which are used to improve the gas-liquid mass transfer effect between liquid emulsion and ozone, improve the sterilization effect, and at the same time enhance the gas-liquid separation efficiency between ozone and liquid emulsion.

[0005] The present invention is achieved through the following technical solutions: A rigid-flexible combined ozone-liquid emulsion mixing and separation device, comprising a rigid-flexible combined static mixing device, a drum cyclone separation device, a multi-tube separation device and a storage separation device; The rigid-flexible static mixing device comprises a liquid emulsion input pipeline, an ozone pipeline and a mixing pipeline. The outlets of the liquid emulsion input pipeline and the ozone input pipeline are connected to the inlet of the mixing pipeline. A static mixer internal stirring paddle is arranged at the inlet of the mixing pipeline. A static mixer element is arranged inside the mixing pipeline along its length axis. A plurality of mixing holes are arranged on the static mixer element. The drum cyclone separation device comprises a drum cylinder body, a stirring drive unit, a drum stirring unit and a first gas sensor. The top of the drum cylinder body is connected to the outlet of the mixing pipe, the drum stirring unit is arranged inside the drum cylinder body, the stirring drive unit is arranged at the bottom of the drum cylinder body, and the output end of the stirring drive unit passes through the bottom wall of the drum cylinder body and is connected to the drum stirring unit; a drum ozone outlet is provided above the drum cylinder body, and a drum bottom outlet pipe is provided below, the drum bottom outlet pipe is connected to a second drum liquid milk outlet pipe and a first drum liquid milk outlet pipe through a drum solenoid valve, the second drum liquid milk outlet pipe is used to be connected to the storage separation device, and the first gas sensor is arranged on the drum bottom outlet pipe; the first drum liquid milk outlet pipe is used to be connected to the multi-tube separation device, and a drum multi-tube solenoid valve is provided on the first drum liquid milk pipe; The multi-tube separation device includes a plurality of single tubes and a plurality of separation solenoid valves, wherein a single tube is connected to the first barrel liquid emulsion outlet pipe as an ozone-liquid emulsion mixed flow delivery pipe, a single tube is connected to the ozone inlet of the storage separation device as an ozone output pipe, and a single tube is connected to the liquid emulsion inlet of the storage separation device as a liquid emulsion output pipe; the plurality of solenoid valves are independently controlled by a main control machine; on the same vertical plane, the height of the ozone-liquid emulsion mixed flow delivery pipe is lower than the height of the ozone output pipe, and the height of the ozone-liquid emulsion mixed flow delivery pipe is higher than the height of the liquid emulsion output pipe; The storage and separation device comprises a storage and separation barrel, an ozone filtering unit, a separation and stirring unit and a side stirring unit. The outlets of the second barrel liquid milk outlet pipe and the liquid milk output pipe are both connected to the liquid milk inlet of the storage and separation barrel, the barrel ozone outlet and the ozone output pipe are both connected to the ozone inlet on the storage and separation barrel, and the ozone filtering unit is arranged at the top of the storage and separation barrel; the separation and stirring unit is located at the bottom of the storage and separation barrel, at least two side stirring units are arranged, and are respectively arranged on both sides inside the storage and separation barrel, the stirring axis of the separation and stirring unit is vertically upward, and the stirring axis of the side stirring unit is perpendicular to the stirring axis of the separation and stirring unit; when in use, the stirring directions of the side stirring units on both sides are opposite; an ozone reflux port is provided at the top of the storage and separation barrel, and a liquid milk outlet is provided at the bottom.

[0006] Preferably, the static mixer element is in a ribbon-shaped spiral structure, and a plurality of flexible elements are provided on the static mixer element, the flexible elements correspond to the mixing holes one by one, and all the flexible elements are located on the same side of the mixing holes.

[0007] Preferably, the drum stirring unit includes a first stirring mechanism and a second stirring mechanism, the first stirring mechanism includes a first stirring shaft and a plurality of first stirring blades, the first stirring shaft is fixedly connected to the driving end of the stirring unit, and the plurality of first stirring blades are fixedly connected to the first stirring shaft; the second stirring mechanism includes a second stirring shaft and a plurality of second stirring blades, the second stirring shaft is fixedly connected to the driving end of the stirring unit, and the plurality of second stirring blades are fixed to the second stirring shaft, and the second stirring blades are made of flexible material.

[0008] Preferably, the ozone filter unit comprises a first filter plate, a second filter plate, a third filter plate and a fourth filter plate which are arranged in sequence from bottom to top, the first filter plate is provided with a plurality of first strip grooves arranged in parallel, the second filter plate is provided with a plurality of second strip grooves arranged in parallel, the first strip grooves are perpendicular to the length axis of the second strip grooves, and the width of the first strip grooves is greater than the width of the second strip grooves; the third filter plate is provided with a plurality of first filter holes, the fourth filter plate is provided with a plurality of second filter holes, and the cross-sectional area of ​​the first filter holes is greater than the cross-sectional area of ​​the second filter holes.

[0009] Preferably, a sawtooth separation plate is arranged above the fourth filter plate, and a plurality of sawteeth in different directions are arranged inside the sawtooth separation plate.

[0010] Preferably, two separation stirring units are provided, and the stirring directions of the two separation stirring units are opposite; the separation stirring unit comprises a separation stirring motor, a separation stirring shaft and a plurality of separation stirring blades, the shell of the separation stirring motor is fixed to the outside of the bottom of the storage separation barrel, the output shaft of the separation stirring motor passes through the bottom of the storage separation barrel and is fixedly connected to the separation stirring shaft, and the plurality of separation stirring blades are fixed on the separation stirring shaft in a fan shape.

[0011] Preferably, the side stirring unit includes a side stirring motor, a side stirring shaft and a plurality of side stirring blades. The shell of the side stirring motor is fixed to the outer side of the side of the storage and separation barrel. The output shaft of the side stirring motor passes through the side wall of the storage and separation barrel and is fixedly connected to the side stirring shaft. The plurality of side stirring blades are fixed on the circumference of the side stirring shaft. A flexible brush is provided at one end of the side stirring blade away from the side stirring shaft.

[0012] Preferably, a plurality of flow-guiding protrusions are provided on the inner side wall of the storage and separation barrel.

[0013] Preferably, the ozone reflux port is located above the ozone filter unit, and the ozone reflux port is connected to an ozone reflux pipe as an ozone reflux port. One end of the ozone reflux pipe away from the ozone reflux port is connected to the ozone pipe, and a second gas sensor is arranged on the ozone reflux pipe.

[0014] Preferably, the liquid milk outlet is connected to a finished product outflow pipe and a liquid milk return pipe, a third gas sensor is provided at the connection between the finished product outflow pipe and the liquid milk return pipe, and the other end of the liquid milk return pipe is connected to the drum cyclone separation device.

[0015] A rigid-flexible combined ozone-liquid emulsion mixed separation method, using the rigid-flexible combined ozone-liquid emulsion mixed separation device, has the following specific steps: S1, liquid emulsion and ozone enter the mixing pipe through the liquid emulsion input pipe and the ozone input pipe respectively; S2, the liquid emulsion and ozone are mixed in the mixing pipe under the action of the static mixer to complete the mixed sterilization operation and form an ozone-liquid emulsion gas-liquid two-phase mixed flow; S3, the ozone-liquid emulsion mixed flow enters from the top of the drum cylinder, and the drum stirring unit stirs the ozone-liquid emulsion mixed flow under the drive of the stirring driving unit, and the first separation of ozone-liquid emulsion is achieved under the action of gravity, centrifugal force and buoyancy; Ozone gas enters the storage and separation device from the ozone outlet of the upper barrel, and the liquid emulsion-ozone mixture flowing out from the bottom outlet of the barrel is detected by the first gas sensor to determine whether it needs to enter the multi-tube separation device for re-separation, as follows: S31, when further separation is required, the drum solenoid valve and the drum multi-tube solenoid valve are opened, and the liquid emulsion-ozone mixed flow passes through the drum solenoid valve and the drum multi-tube solenoid valve from the first drum liquid emulsion outlet pipe into the ozone-liquid emulsion mixed flow delivery pipe of the multi-tube separation device, and the ozone-liquid emulsion mixed flow from the ozone-liquid emulsion mixed flow delivery pipe is separated for the second time in the multi-tube separation device composed of a plurality of solenoid valves and a plurality of single tubes, and the ozone enters the storage separation device from the ozone output pipe, and the liquid emulsion enters the storage separation device from the liquid emulsion output pipe; wherein, the more the content of ozone gas in the ozone-liquid emulsion mixed flow, the longer the path of the ozone-liquid emulsion mixture in the multi-tube separation device; S32, when further separation is not required, the barrel solenoid valve is opened, the barrel multi-tube solenoid valve is closed, and the liquid milk flows through the barrel solenoid valve and enters the storage separation barrel through the second barrel liquid milk outlet pipe, and the liquid milk enters the storage separation barrel through the second barrel liquid milk outlet; S4, after the ozone enters the storage and separation barrel, it is filtered and separated by the ozone filter unit arranged on the top of the barrel and then discharged from the ozone reflux port; After the liquid emulsion enters the storage separation barrel, it is finally separated by the separation stirring unit at the bottom and the side stirring unit. The residual ozone gas rises and is discharged after passing through the ozone passing unit. The liquid emulsion after separation is discharged from the liquid emulsion outlet.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a combination of rigid and flexible ozone-liquid emulsion mixing and separation equipment, which comprehensively uses multiple technologies such as static mixing, cyclone separation, multi-tube separation and storage separation to achieve efficient and accurate separation of ozone and liquid emulsion mixture. At the same time, the equipment also focuses on the combination of rigid stirring and flexible stirring, the improvement of mass transfer capacity and separation efficiency, and the strengthening of safety assurance, providing strong support for the production of related industries. The static mixer element in the rigid-flexible static mixer can cut, mix, and converge ozone gas and liquid emulsion to complete the mixing and stirring sterilization process; the mixing holes on the static mixer element can improve the gas-liquid mass transfer effect, and the flexible components installed on it can break the periodicity of the flow field movement, produce a chaotic stirring effect, and further enhance the mixing and ozone sterilization effect. The paddle stirrer can avoid the local accumulation of ozone gas.

[0017] A plurality of solenoid valves are arranged in the multi-tube separation device, which can adjust the migration route of the ozone-liquid emulsion gas-liquid mixture in the device according to the needs of the actual separation working conditions, realize the customized separation process, and reduce energy consumption and separation production time.

[0018] The separation stirring unit set in the storage separation barrel can push the ozone gas inside the liquid emulsion upward to improve the gas-liquid separation effect. The side stirring unit can further clean the ozone bubbles attached to the edge of the barrel wall by controlling its rotation direction, and on the other hand, it can push the ozone bubbles to move upward and to the center.

[0019] The ozone reflux port can reuse the ozone gas. At the same time, a solenoid valve and a gas sensor are installed in the pipeline to detect the ozone gas concentration and replenish ozone gas as needed.

[0020] Furthermore, static mixer elements can be combined according to actual production needs, including combinations of different rotation directions and quantities, to achieve customized production needs.

[0021] Furthermore, the flexible element below the mixing hole helps to break the periodicity of the mixing process, thereby improving the mass transfer efficiency and sterilization effect while reducing power consumption.

[0022] Furthermore, in the drum cyclone separation device, the ozone-liquid emulsion gas-liquid two-phase mixed flow flows in from its upper inlet, and high-speed turbulence is generated under the combined action of gravity, centrifugal force and buoyancy, so that a certain liquid cone can be formed in the drum cyclone separation device, wherein the liquid emulsion can spiral downward along the wall and be discharged from the lower liquid outlet, and the ozone gas moves upward along the center of the vortex and finally flows out from the gas outlet on the upper right side, with better separation effect; the paddle agitator and propeller agitator installed in the drum cyclone separation device can generate different radial flows, axial flows and circumferential flows, and the coordinated stirring of the two agitators helps to improve the separation effect; and the paddle agitator is installed with flexible material, which can produce a chaotic effect on the one hand, further breaking the periodicity of the flow field, and on the other hand, it can clean up the ozone bubbles adhering to the wall, further improving the separation efficiency of ozone-liquid emulsion.

[0023] Furthermore, the multi-layer filter plate is provided with a plurality of rectangular and circular filter holes, which can prevent small liquid emulsion droplets from entering the upper space and further improve the separation effect; the rectangular width and circular hole diameter exist in a certain range to adapt to the mixed separation process of ozone gas and liquid emulsion of different flow rates and types.

[0024] Furthermore, a plurality of sawtooth-shaped protrusions and inner grooves are arranged inside the sawtooth separation plate. When ozone gas containing liquid emulsion droplets enters the sawtooth separation plate from the bottom, the protrusions can prevent the droplets from moving upward, and the inner grooves can capture the droplets. The collected droplets can be discharged along the inner wall surface in the opposite direction of the ozone gas flow under the action of gravity.

[0025] Furthermore, the flexible component can reduce damage to the wall material while cleaning the wall.

[0026] Furthermore, the guide protrusions can prevent ozone bubbles from adhering to the wall surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the external structure of a rigid-flexible combined ozone-liquid emulsion mixing and separation device of the present invention; Figure 2 It is a schematic diagram of a rigid-flexible combined static mixing device in a rigid-flexible combined ozone-liquid emulsion mixing and separation device of the present invention; Figure 3 is a schematic diagram of a static mixer element in a rigid-flexible combined static mixing device; Figure 4 It is a schematic diagram of a drum cyclone separation device in a rigid-flexible combined ozone-liquid emulsion mixing separation device of the present invention; Figure 5 It is a schematic diagram of a multi-tube separation device in a rigid-flexible combined ozone-liquid emulsion mixing separation device of the present invention; Figure 6It is a schematic diagram of the internal structure of a storage and separation device in a rigid-flexible combined ozone-liquid emulsion mixing and separation device of the present invention; Figure 7 yes Figure 6 A partial enlarged view of the middle A; Figure 8 yes Figure 6 A partial enlarged view of point B in the middle; Fig. 9 This is a schematic diagram of the migration route of the ozone-liquid emulsion mixed flow in the multi-tube separation device when the ozone content is 0.5 mg / L>0.2 mg / L; Fig.10 This is a schematic diagram of the migration route of the ozone-liquid emulsion mixed flow in the multi-tube separation device when the ozone content is greater than 0.5 mg / L; Fig.11 It is a three-dimensional schematic diagram of the flow path of a liquid-emulsion mixed flow in a multi-tube separation device.

[0028] In the figure, 1, liquid emulsion inlet metering pump; 2, ozone inlet metering pump; 3, ozone supplementary metering pump; 4, ozone reflux metering pump; 5, liquid emulsion reflux metering pump; 6, liquid emulsion pipeline inlet; 7, liquid emulsion inlet solenoid valve; 8, liquid emulsion input pipeline; 9, ozone pipeline inlet; 10, ozone inlet solenoid valve; 11, ozone reflux port solenoid valve; 12, ozone reflux pipeline; 13, ozone supplementary solenoid valve; 14, ozone supplementary pipeline; 15, ozone input pipeline; 16, stirring paddle in static mixer; 17, static mixer element; 18, static mixer outlet solenoid valve; 1 9. static mixer outlet pipe; 20. static mixer reflux pipe; 21. first motor; 22. first coupling; 23. first stirring shaft; 24. first stirring blade; 25. drum pipe inlet; 26. drum cylinder; 27. first drum liquid milk outlet pipe; 28. drum solenoid valve; 29. ​​second drum liquid milk outlet pipe; 30. first gas sensor; 31. second stirring shaft; 32. second stirring blade; 33. second coupling; 34. drum bottom outlet pipe; 35. second motor; 36. ozone-liquid milk mixed flow delivery pipe; 37. Single tube; 38, separation solenoid valve; 39, ozone output pipeline; 40, liquid emulsion output pipeline; 41, liquid emulsion reflux pipeline; 42, first storage separation barrel liquid emulsion inlet; 43, second storage separation barrel liquid emulsion inlet; 44, storage separation barrel; 45, first storage separation barrel ozone inlet; 46, second storage separation barrel ozone inlet; 47, third storage separation barrel ozone inlet; 48, storage separation barrel ozone reflux port; 49, first filter plate; 50, second filter plate; 51, third filter plate; 52, fourth filter plate; 53, second gas sensor; 54, sawtooth separation Plate; 55, side stirring device; 56, guide protrusion; 57, side coupling; 58, side motor; 59, bracket; 60, rubber pad; 61, separation stirring blade; 62, separation coupling; 63, separation stirring motor; 64, finished product outflow pipeline; 65, separation barrel bottom solenoid valve; 66, third gas sensor; 67, liquid emulsion outlet; 68, separation liquid emulsion inlet solenoid valve; 69, drum multi-tube solenoid valve; 100, rigid-flexible combination static mixing device; 200, drum cyclone separation device; 300, multi-tube separation device; 400, storage separation device. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0030] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 a limitation on the present invention. 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The present invention discloses a rigid-flexible combined ozone-liquid emulsion mixing and separation device, referring to Figure 1 , including a rigid-flexible combined static mixing device 100, a barrel cyclone separation device 200, a multi-tube separation device 300 and a storage separation device 400, which are connected in sequence from left to right.

[0032] Reference Figure 2 The rigid-flexible static mixing device 100 includes a liquid emulsion input pipeline 8, an ozone input pipeline 15 and a mixing pipeline. The outlets of the liquid emulsion input pipeline 8 and the ozone input pipeline 15 are connected to the inlet of the mixing pipeline. In this embodiment, the liquid emulsion pipeline inlet of the liquid emulsion input pipeline 8 is located at the lower left part of the rigid-flexible static mixing device 100, and the liquid emulsion inlet metering pump 1 and the liquid emulsion inlet solenoid valve 7 are installed on the liquid emulsion input pipeline 8 at the liquid emulsion pipeline inlet. The ozone pipeline inlet 9 of the ozone input pipeline 15 is located at the upper part of the rigid-flexible static mixing device 100, and the ozone inlet metering pump 2 and the ozone inlet solenoid valve 10 are installed on the ozone input pipeline 15 at the ozone pipeline inlet 9.

[0033] Two mixing pipes are provided, and the inlets of the two mixing pipes are connected to the outlets of the ozone input pipe 15 and the liquid emulsion input pipe 8. Static mixer outlet solenoid valves 18 are provided at the outlet ends of the two mixing pipes. A static mixer reflux pipe 20 is connected between the two static mixer outlet solenoid valves 18. At the same time, the outlet ends of the two mixing pipes are connected to the static mixer outlet pipe 19 and the drum cyclone separation device 200.

[0034] A static mixer agitator 16 is provided at the inlet of the mixing pipe, and a static mixer element 17 with a ribbon-shaped spiral structure is provided inside the mixing pipe along its length axis. Figure 3The static mixer element 17 is provided with a plurality of mixing holes and a plurality of flexible elements, the flexible elements correspond to the mixing holes one by one, and all the flexible elements are located on the same side of the mixing holes. In this embodiment, the diameter of the mixing holes ranges from 2 to 5 mm, and the flexible elements are made of silicone, rubber or other elastic materials, which helps to break the periodicity of the mixing process, and improve the gas-liquid mass transfer efficiency and sterilization effect while reducing power consumption.

[0035] Reference Figure 4 The drum cyclone separation device 200 includes a drum cylinder body 26, a stirring drive unit, a drum stirring unit and a first gas sensor 30. The top of the drum cylinder body 26 is connected to the outlet of the mixing pipe, the drum stirring unit is arranged inside the drum cylinder body 26, the stirring drive unit is arranged at the bottom of the drum cylinder body 26, and the output end of the stirring drive unit passes through the bottom wall of the drum cylinder body 26 and is connected to the drum stirring unit; a drum ozone outlet is opened above the drum cylinder body 26, and a drum bottom outlet pipe 34 is arranged below, and the drum bottom outlet pipe 34 is connected to the second drum liquid milk outlet pipe 29 and the first drum liquid milk outlet pipe 27 through a drum solenoid valve 28. The second drum liquid milk outlet pipe 29 is used to be connected to the storage separation device 400, and the first gas sensor 30 is arranged on the drum bottom outlet pipe 34; the first drum liquid milk outlet pipe 27 is used to be connected to the multi-tube separation device 300, and a drum multi-tube solenoid valve 69 is arranged on the first drum liquid milk pipe 27.

[0036] The drum stirring unit includes a first stirring mechanism and a second stirring mechanism, the stirring drive unit includes a first motor 21 and a second motor 35, the first stirring mechanism includes a first stirring shaft 23 and a plurality of first stirring blades 24, the first stirring shaft 23 is fixedly connected to the output shaft of the first motor 21 through a first coupling 22, and the plurality of first stirring blades 24 are fixedly connected to the first stirring shaft 23.

[0037] The second stirring mechanism includes a second stirring shaft 31 and a plurality of second stirring blades 32. The second stirring shaft 31 is fixedly connected to the output shaft of the second motor 35 via a second coupling 33. The plurality of second stirring blades 32 are fixed on the second stirring shaft 31. The second stirring blades 32 are made of flexible material.

[0038] In this embodiment, the first motor 21 is installed on the left side of the bottom of the barrel body 26, and the first motor 21 is connected to the first stirring shaft 23 through the first coupling 22, and the second motor 35 is installed on the right side of the bottom of the barrel body 26, and is connected to the second stirring shaft 31 through the second coupling 33. The first stirring mechanism and the second stirring mechanism have opposite rotation directions, wherein the first stirring mechanism rotates counterclockwise, and the second stirring mechanism rotates clockwise, and the rotation speed is 800-1000 r / min. The left top of the barrel cylinder body 26 is connected to the static mixer outlet pipe 19, the outlet of the static mixer outlet pipe 19 is the barrel pipe inlet 25, and a barrel ozone exhaust pipe is provided at the barrel ozone outlet on the upper right side of the barrel cylinder body 26, and the barrel ozone exhaust pipe is connected to the storage separation device 400. Multiple barrel cyclone separation devices 200 can be provided to improve the separation efficiency. In this embodiment, two barrel cyclone separation devices 200 are provided, and the first barrel liquid emulsion outlet pipes 27 of the two barrel cyclone separation devices 200 are connected by a pipe, and a barrel solenoid valve 28 is provided at the connection point for connection control.

[0039] Reference Figure 5 The multi-tube separation device 300 includes a plurality of single tubes 37 and a plurality of separation solenoid valves 38. A single tube 37 is connected to the first barrel liquid emulsion outlet pipe 27 as an ozone-liquid emulsion mixed flow delivery pipe 36, a single tube 37 is connected to the ozone inlet of the storage separation device 400 as an ozone output pipe 39, and a single tube 37 is connected to the liquid emulsion inlet of the storage separation device 400 as a liquid emulsion output pipe 40; the plurality of solenoid valves are independently controlled by a main control machine; on the same vertical plane, the height of the ozone-liquid emulsion mixed flow delivery pipe 36 is lower than the height of the ozone output pipe 39, and the height of the ozone-liquid emulsion mixed flow delivery pipe 36 is higher than the height of the liquid emulsion output pipe 40. In this embodiment, there are two drum cyclone separation devices 200, and the inlets of the two corresponding ozone-liquid emulsion mixed flow delivery pipelines 36 are respectively arranged on the left and right sides of the multi-tube separation device 300, and the ozone-liquid emulsion mixed flow delivery pipeline 36 is connected to the outlet of the first drum liquid emulsion outlet pipeline 27, the liquid emulsion output pipeline 40 is located at the right lower part of the whole device, and the ozone output pipeline 39 is located at the right upper part of the whole device. The main control machine controls the opening and closing of the drum solenoid valve 28 according to the ozone content data transmitted by the first gas sensor 30. If the drum solenoid valve 28 is opened, the ozone-liquid emulsion mixed flow enters the multi-tube separation device 300 through the first drum liquid emulsion outlet pipeline 27. Through the opening and closing control of several separation solenoid valves 38 and the mutual connection of several single tubes 37, the separation path of the ozone-liquid emulsion mixture in this device is controlled, and the control and optimization of the separation path are realized, which ensures the stability and efficiency of the separation process, and ensures the automation, intelligence and efficiency of the entire separation process.

[0040] In order to speed up the separation efficiency of ozone-liquid emulsion, two drum cyclone separation devices 200 are provided in the present embodiment, corresponding to the mixing pipes one by one. According to the working conditions and use requirements, they can work separately or simultaneously, but share a multi-tube separation device 300. This is because the ozone flow channel and the liquid emulsion flow channel of the multi-tube separation device 300 can control the flow rate, flow rate and distance by controlling the separation solenoid valve 38, so as to fully realize the re-separation of ozone.

[0041] Reference Figure 6 The storage and separation device 400 includes a storage and separation barrel 44, an ozone filtering unit, a separation stirring unit and a side stirring unit. The outlets of the bottom outlet pipe 34 of the barrel and the liquid milk output pipe 40 are both connected to the liquid milk inlet of the storage and separation barrel 44, and the ozone outlet of the barrel and the ozone output pipe 39 are both connected to the ozone inlet on the storage and separation barrel 44. In this embodiment, a first storage and separation barrel liquid milk inlet 42 and a second storage and separation barrel liquid milk inlet 43 are provided at the left bottom of the storage and separation barrel 44, and a liquid milk inlet solenoid valve is provided at the first storage and separation barrel liquid milk inlet 42. The first storage and separation barrel liquid milk inlet 42 is connected to the second barrel liquid milk outlet pipe 29 of the barrel cyclone separation device 200, and the second storage and separation barrel liquid milk inlet 43 is connected to the liquid milk output pipe 40 of the multi-tube separation device 300. A first storage and separation barrel ozone inlet 45, a second storage and separation barrel ozone inlet 46 and a third storage and separation barrel ozone inlet 47 are provided on the left side wall of the storage and separation barrel 44. The first storage and separation barrel ozone inlet 45 is connected to the ozone output pipe 39 of the multi-tube separation device 300, and the second storage and separation barrel ozone inlet 46 and the third storage and separation barrel ozone inlet 47 are respectively connected to the two barrel ozone discharge auxiliary pipes.

[0042] The separation stirring unit is located at the bottom of the storage separation barrel 44. There are two separation stirring units, and the stirring directions of the two separation stirring units are opposite, such as the separation stirring unit on the left rotates clockwise, and the separation stirring unit on the right rotates counterclockwise, with a speed range of 100-150 r / min. In this embodiment, the separation stirring unit is symmetrically arranged at the bottom of the inner side of the storage separation barrel 44. The separation stirring unit includes a separation stirring motor 63, a separation stirring shaft and a plurality of separation stirring blades 61. The housing of the separation stirring motor 63 is fixed to the outside of the bottom of the storage separation barrel 44. The output shaft of the separation stirring motor 63 passes through the bottom of the storage separation barrel 44 and is fixedly connected to the separation stirring shaft through a separation coupling 62. A plurality of separation stirring blades 61 are fixed on the separation stirring shaft in a fan shape.

[0043] At least two side stirring units are provided, and eight are provided in this embodiment, and are respectively provided on both sides of the storage separation barrel 44. The stirring axis of the separation stirring unit is vertically upward, and the stirring axis of the side stirring unit is perpendicular to the stirring axis of the separation stirring unit; when in use, the stirring directions of the side stirring units on both sides are opposite; an ozone reflux port is provided at the top of the storage separation barrel 44, and a liquid emulsion outlet is provided at the bottom. The side stirring unit includes a side stirring motor, a side stirring shaft and a plurality of side stirring blades. The housing of the side stirring motor is fixed to the outer side of the storage separation barrel 44, and the output shaft of the side stirring motor penetrates the side wall of the storage separation barrel 44 and is fixedly connected to the side stirring shaft through a side coupling 57. A plurality of side stirring blades are fixed to the circumference of the side stirring shaft. A flexible brush is provided at one end of the side stirring blade away from the side stirring shaft. The flexible brush is made of silicone or rubber. On the one hand, it plays the role of cleaning the wall ozone bubbles, and on the other hand, it can play the role of chaotic stirring, which can further clean the ozone gas attached to the side wall, and improve the separation efficiency and separation quality of ozone-liquid emulsion.

[0044] The ozone filter unit is arranged on the top of the storage and separation barrel 44, and includes a first filter plate 49, a second filter plate 50, a third filter plate 51 and a fourth filter plate 52 which are arranged in sequence from bottom to top. The first filter plate 49 is provided with a plurality of first strip grooves arranged in parallel, and the second filter plate 50 is provided with a plurality of second strip grooves arranged in parallel. The first strip grooves are perpendicular to the length axis of the second strip grooves, and the width of the first strip grooves is greater than the width of the second strip grooves; the third filter plate 51 is provided with a plurality of first filter holes, and the fourth filter plate 52 is provided with a plurality of second filter holes, and the cross-sectional area of ​​the first filter holes is greater than the cross-sectional area of ​​the second filter holes. In this embodiment, the first filter hole and the second filter hole are both circular holes, the first strip groove and the second strip groove are both rectangular grooves, the diameter of the circular hole and the width of the rectangular groove are in the range of 5 to 20 mm, wherein the first strip groove and the second strip groove can more effectively capture and guide large bubbles due to the relatively large width of the rectangular groove to prevent them from interfering with the subsequent ozone treatment process, and are used to filter and separate larger ozone bubbles; the first filter hole and the second filter hole are used to separate and filter smaller ozone bubbles, and their circular structure provides sufficient filtering area, which can finely filter out small bubbles and ensure the efficiency and effect of ozone treatment.

[0045] Reference Figure 8A sawtooth separation plate 54 is provided on the side of the fourth filter plate 52 opposite to the ozone inlet. A plurality of sawtooths in different directions are provided inside the sawtooth separation plate 54. When ozone gas with liquid emulsion droplets enters the sawtooth separation plate from the bottom, the sawtooths can prevent the droplets from moving upward. The inner grooves left between two adjacent sawtooths can capture the droplets. The collected droplets can be discharged along the inner wall surface in the opposite direction of the ozone gas flow under the action of gravity. In this embodiment, four channels are arranged in the sawtooth separation plate 54, and three groups of concave and convex sawtooth structures are arranged in each channel. The upper and lower parts are concave sawtooths, which can accumulate liquid emulsion liquid. When the liquid flows through these recesses, due to the effects of gravity and surface tension, the liquid will accumulate in the recesses, thereby slowing down the flow rate of the liquid and increasing the contact time between the liquid and the sawtooth structure, which is beneficial to subsequent separation operations; the middle part is convex sawtooth, which can prevent the liquid from flowing upward. When the liquid tries to flow upward from the recess, the convex sawtooth will form a physical barrier to prevent or slow down the upward speed of the liquid, so that more liquid can stay and accumulate in the recess, thereby achieving further separation of the liquid emulsion-ozone mixture, which helps to improve the separation efficiency and accuracy.

[0046] Four brackets 59 and four rubber pads 60 are arranged at the bottom edge of the storage separation barrel 44. The brackets 59 are the main supporting structures of the storage separation barrel 44, and the rubber pads 60 are used to provide stable support and buffering and shock-absorbing effects, and can also protect the ground and the barrel itself from damage.

[0047] In order to reduce the adhesion of ozone gas to the side wall, a number of guide protrusions 56 are provided on the inner wall of the storage and separation barrel 44. The guide protrusions 56 are designed based on the principles of fluid mechanics and gas dynamics. The contact time and area between the gas and the side wall are reduced by changing the path and speed of the gas flow, thereby reducing the adhesion effect. This has a positive effect on improving the uniformity of the distribution of ozone gas in the storage and separation barrel, accelerating the reaction rate or improving the separation efficiency.

[0048] A liquid emulsion outlet 67 is provided in the middle of the bottom of the storage separation barrel 44, and the liquid emulsion outlet 67 is connected to the finished product outflow pipe 64, and a third gas sensor 66 and a solenoid valve 65 at the bottom of the separation barrel are installed at the position of the liquid emulsion outlet 67. In this embodiment, a liquid emulsion reflux pipe 41 is also connected to the position of the liquid emulsion outlet 67, and the other end of the liquid emulsion reflux pipe 41 is connected to the static mixer reflux pipe 20. When the liquid emulsion after the separation process still contains ozone gas, it can flow back to the static mixer reflux pipe 20 through the liquid emulsion reflux pipe 41, and then flow into the drum cyclone separation device 200 again, and the ozone-liquid emulsion gas-liquid separation process operation is performed again, so as to ensure the separation quality and further ensure the complete separation of liquid emulsion and ozone.

[0049] The ozone reflux port is located above the ozone filter unit. The ozone reflux port is connected to an ozone reflux pipe 12 as an ozone reflux port. One end of the ozone reflux pipe 12 away from the ozone reflux port is connected to an ozone input pipe 15. A second gas sensor 53 is provided at the entrance of the ozone reflux pipe 12. An ozone reflux metering pump 4 is provided on the ozone reflux pipe 12. The other end of the ozone reflux pipe 12 is connected to the ozone input pipe 15 through an ozone reflux port solenoid valve 11. At the same time, the ozone reflux port solenoid valve 11 is connected to an ozone replenishing pipe 14 through an ozone replenishing solenoid valve 13. The other end of the ozone replenishing pipe 14 is connected to an ozone replenishing metering pump 3. The ozone replenishing metering pump 3 is connected to an external ozone source. The ozone reflux port can reuse ozone gas. At the same time, the ozone reflux port solenoid valve 11 and the second gas sensor 53 are provided in the ozone reflux pipe 12 to detect the concentration of ozone gas and replenish ozone gas through the ozone replenishing pipe 14 as needed.

[0050] The present invention also discloses a rigid-flexible combined ozone-liquid emulsion mixed separation method, using the rigid-flexible combined ozone-liquid emulsion mixed separation device, and the specific steps are as follows: S1, liquid emulsion and ozone enter the mixing pipe through the liquid emulsion input pipe 8 and the ozone input pipe 15 respectively; S2, liquid emulsion and ozone are mixed and sterilized in a mixing pipeline under the action of a static mixer to form an ozone-liquid emulsion gas-liquid two-phase mixed flow; S3, the ozone-liquid emulsion mixed flow enters from the top of the drum cylinder 26, and the drum stirring unit stirs the ozone-liquid emulsion mixed flow under the drive of the stirring driving unit, and the first separation of ozone-liquid emulsion is achieved under the action of gravity, centrifugal force and buoyancy; Ozone gas enters the storage and separation device 400 from the ozone outlet of the upper barrel, and the liquid emulsion-ozone mixed flow flowing out from the outlet pipe 34 at the bottom of the barrel is detected by the first gas sensor 30 to determine whether it needs to enter the multi-tube separation device 300 for re-separation, as follows: S31, when further separation is required, the barrel solenoid valve 28 and the barrel multi-tube solenoid valve 69 are opened, and the liquid emulsion-ozone mixed flow flows from the bottom outlet pipe 34 of the barrel below through the solenoid valve 28 and the barrel multi-tube solenoid valve 69 and enters the ozone-liquid emulsion mixed flow delivery pipe 36 of the multi-tube separation device 300 from the first barrel liquid emulsion outlet pipe 27; the ozone-liquid emulsion mixed flow from the ozone-liquid emulsion mixed flow delivery pipe 36 is separated for the second time in the multi-tube separation device 300 composed of a plurality of solenoid valves and a plurality of single tubes 37, and the ozone enters the storage separation device 400 from the ozone output pipe 39, and the liquid emulsion enters the storage separation device 400 from the liquid emulsion output pipe 40; S32, when further separation is not required, the barrel solenoid valve 28 is opened, the barrel multi-tube solenoid valve 69 is closed, and the liquid milk flows through the barrel solenoid valve 28 and enters the storage separation barrel 44 through the second barrel liquid milk outlet pipe 29; S4, after the ozone enters the storage and separation barrel 44, it is filtered by the ozone filter unit arranged on the top thereof and then discharged from the ozone reflux port; After the liquid emulsion enters the storage separation barrel 44, it is finally separated by the separation stirring unit at the bottom and the side stirring unit at the side. The residual ozone gas rises and is discharged after passing through the ozone filtering unit, and the liquid emulsion is discharged from the liquid emulsion outlet.

[0051] The details are as follows: when in use, driven by the liquid emulsion inlet metering pump 1 and the ozone inlet metering pump 2, the liquid emulsion liquid and ozone gas are introduced from the liquid emulsion pipeline inlet 6 and the ozone pipeline inlet 9 respectively, wherein the liquid emulsion flows through the liquid emulsion inlet solenoid valve 7 into the liquid emulsion input pipeline 8, and the ozone flows through the ozone inlet solenoid valve 10 into the ozone input pipeline 15, and both enter the stirring, mixing and sterilization area of ​​the rigid-flexible combination static mixing device 100 at the same time, and start mixing and stirring under the action of the static mixer element 17 to carry out continuous production; after the stirring is completed, the ozone-liquid emulsion gas-liquid mixture flows through the static mixer outlet solenoid valve 18, the static mixer outlet pipeline 19, and the barrel pipeline inlet 25 into the barrel cylinder 26 in the barrel cyclone separation device 200.

[0052] The ozone-liquid emulsion gas-liquid mixture entering the drum cyclone separation device 200 begins to undergo a gas-liquid separation process of ozone-liquid emulsion under the action of the first stirring blade 24 and the second stirring blade 32; the separated ozone gas flows out through the upper outlet on the right side of the drum cylinder body 26, and enters the upper part of the storage separation barrel 44 through the ozone inlet 46 of the second storage separation barrel and the ozone inlet 47 of the third storage separation barrel; the liquid emulsion flows out from the outlet pipe 34 at the bottom of the drum below, and is detected by the first gas sensor 30. If further separation is required, the liquid emulsion flows through the drum solenoid valve 28 and the drum multi-tube solenoid valve 69, and enters the ozone-liquid emulsion mixed flow conveying pipe 36 of the multi-tube separation device through the first drum liquid emulsion outlet pipe 27, and enters the multi-tube separation device 300 to continue the separation operation; If separation is not required (for example, when the ozone content is less than or equal to 0.1 mg / L, this value can be set according to different requirements), the separated liquid emulsion flows through the drum bottom outlet pipe 34 through the drum solenoid valve 28, and enters the bottom of the storage separation drum 44 through the second drum liquid emulsion outlet 29, the first storage separation drum liquid emulsion inlet 42, and the separation liquid emulsion inlet solenoid valve 68.

[0053] If further separation is required, the ozone-liquid emulsion mixed flow entering the ozone-liquid emulsion mixed flow delivery pipeline 36 continues to undergo separation operation. Fig. 9, the separation operation is completed under the combination of a single tube 37 and a multi-tube separation solenoid valve 38; the ozone gas enters the upper part of the storage separation barrel 44 through the upper ozone output pipe 39 and the first storage separation barrel ozone inlet 45; the liquid emulsion flows out through the lower liquid emulsion output pipe 40 and the second storage separation barrel liquid emulsion inlet 43 and enters the bottom of the storage separation barrel 44.

[0054] The more ozone gas content in the ozone-liquid emulsion mixed flow, the longer the path of the ozone-liquid emulsion mixed flow in the multi-tube separation device 300 is. By opening more multi-tube separation solenoid valves 38 and single tubes 37, more time and opportunities are provided for the ozone-liquid emulsion mixed flow to be fully separated from the liquid. For example, when 0.5 mg / L>ozone content>0.2 mg / L, the liquid emulsion mixed flow in the multi-tube separation device is Fig. 9 The separation operation is performed along the path shown; when the ozone content is greater than 0.5 mg / L, refer to Fig.10 The paths shown are separated.

[0055] Fig.11 This is a three-dimensional schematic diagram of the flow path of a liquid-emulsion mixed flow in a multi-tube separation device. When in use, the number of pipes passed can be adjusted according to the actual separation needs to achieve the best separation effect. In addition, gas-liquid separation in the form of pipes takes up less space, not only because of its compact structure and relatively small space, but also because the pipe layout is flexible and changeable, and can easily adapt to various complex installation environments and space restrictions.

[0056] The ozone gas entering the upper part of the storage and separation barrel 44 is separated multiple times by the first filter plate 49, the second filter plate 50, the third filter plate 51, the fourth filter plate 52 and the serrated separation plate 54, and flows out through the ozone reflux port at the top of the storage and separation barrel 44; the liquid emulsion liquid entering the bottom of the storage and separation barrel 44 is further gas-liquid separated under the stirring action of the separation stirring blade 61, and the separated ozone gas flows out from the top through the upper ozone filter unit, and the liquid emulsion liquid flows out from the bottom through the liquid emulsion outlet 67 at the bottom of the storage and separation barrel; the outflowing liquid emulsion needs to pass through the third gas sensor 66 to detect whether the gas-liquid separation is completed. If it is completed, it will flow out through the solenoid valve 65 at the bottom of the storage and separation barrel and the finished product outflow pipe 64; if the separation is not completed, it will flow back through the solenoid valve 65 at the bottom of the storage and separation barrel and the liquid emulsion reflux pipe 41 into the static mixer reflux pipe 20 to perform the separation operation again.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to impose any limitation on the technical solution of the present invention. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can also be subjected to several simple modifications and substitutions, and these modifications and substitutions are also within the scope of protection covered by the claims.

Claims

1. A rigid and flexible combination of ozone-liquid emulsion mixing and separation equipment, It is characterized in that It comprises a rigid-flexible combined static mixing device (100), a drum cyclone separation device (200), a multi-tube separation device (300) and a storage separation device (400); The rigid-flexible combined static mixing device (100) comprises a liquid emulsion input pipeline (8), an ozone input pipeline (15) and a mixing pipeline, wherein the outlets of the liquid emulsion input pipeline (8) and the ozone input pipeline (15) are both connected to the inlet of the mixing pipeline, a static mixer internal stirring paddle (16) is arranged at the inlet of the mixing pipeline, a static mixer element (17) is arranged inside the mixing pipeline along its longitudinal axis, and a plurality of mixing holes are arranged on the static mixer element (17); The drum cyclone separation device (200) comprises a drum cylinder (26), a stirring drive unit, a drum stirring unit and a first gas sensor (30); the top of the drum cylinder (26) is connected to the outlet of the mixing pipe, the drum stirring unit is arranged inside the drum cylinder (26), the stirring drive unit is arranged at the bottom of the drum cylinder (26), and the output end of the stirring drive unit penetrates the bottom wall of the drum cylinder (26) and is connected to the drum stirring unit; a drum ozone outlet is provided at the top of the drum cylinder (26), and a drum bottom outlet pipe ( 34), the bottom outlet pipe (34) of the drum is connected to the second liquid milk outlet pipe (29) of the drum and the first liquid milk outlet pipe (27) of the drum through a drum solenoid valve (28), the second liquid milk outlet pipe (29) of the drum is used to be connected to the storage separation device (400), and the first gas sensor (30) is arranged on the bottom outlet pipe (34) of the drum; the first liquid milk outlet pipe (27) of the drum is used to be connected to the multi-tube separation device (300), and the first liquid milk outlet pipe (27) of the drum is provided with a drum multi-tube solenoid valve (69); The multi-tube separation device (300) comprises a plurality of single tubes (37) and a plurality of separation solenoid valves (38); a single tube (37) is connected to the first barrel liquid emulsion outlet pipe (27) as an ozone-liquid emulsion mixed flow delivery pipe (36); a single tube (37) is connected to the ozone inlet of the storage separation device (400) as an ozone output pipe (39); and a single tube (37) is connected to the liquid emulsion inlet of the storage separation device (400) as a liquid emulsion output pipe (40); the plurality of solenoid valves are independently controlled by a main control machine; on the same vertical plane, the height of the ozone-liquid emulsion mixed flow delivery pipe (36) is lower than the height of the ozone output pipe (39), and the height of the ozone-liquid emulsion mixed flow delivery pipe (36) is higher than the height of the liquid emulsion output pipe (40); The storage and separation device (400) comprises a storage and separation barrel (44), an ozone filtering unit, a separation and stirring unit and a side stirring unit. The outlets of the second barrel liquid milk outlet pipe (29) and the liquid milk output pipe (40) are both connected to the liquid milk inlet of the storage and separation barrel (44). The barrel ozone outlet and the ozone output pipe (39) are both connected to the ozone inlet on the storage and separation barrel (44). The ozone filtering unit is arranged at the top of the storage and separation barrel (44); the separation and stirring unit is located at the bottom of the storage and separation barrel (44); at least two side stirring units are arranged and are respectively arranged on both sides inside the storage and separation barrel (44); the stirring axis of the separation and stirring unit is vertically upward, and the stirring axis of the side stirring unit is perpendicular to the stirring axis of the separation and stirring unit; when in use, the stirring directions of the side stirring units on both sides are opposite; the top of the storage and separation barrel (44) is provided with an ozone reflux port, and the bottom is provided with a liquid milk outlet (67).

2. The rigid-flexible combined ozone-liquid emulsion mixing and separation equipment according to claim 1, It is characterized in that The static mixer element (17) is in a ribbon-shaped spiral structure. A plurality of flexible elements are also arranged on the static mixer element (17). The flexible elements correspond to the mixing holes one by one, and all the flexible elements are located on the same side of the mixing holes.

3. The rigid-flexible combined ozone-liquid emulsion mixing and separation equipment according to claim 1, It is characterized in that The drum stirring unit comprises a first stirring mechanism and a second stirring mechanism. The first stirring mechanism comprises a first stirring shaft (23) and a plurality of first stirring blades (24). The first stirring shaft (23) is fixedly connected to the driving end of the stirring unit, and the plurality of first stirring blades (24) are fixedly connected to the first stirring shaft (23). The second stirring mechanism comprises a second stirring shaft (31) and a plurality of second stirring blades (32). The second stirring shaft (31) is fixedly connected to the driving end of the stirring unit, and the plurality of second stirring blades (32) are fixed to the second stirring shaft (31). The second stirring blades (32) are made of flexible material.

4. The rigid-flexible combined ozone-liquid emulsion mixing and separation equipment according to claim 1, It is characterized in that The ozone filtering unit comprises a first filter plate (49), a second filter plate (50), a third filter plate (51) and a fourth filter plate (52) which are arranged in sequence from bottom to top. The first filter plate (49) is provided with a plurality of first strip grooves arranged in parallel, the second filter plate (50) is provided with a plurality of second strip grooves arranged in parallel, the first strip grooves are perpendicular to the longitudinal axes of the second strip grooves, and the width of the first strip grooves is greater than the width of the second strip grooves; the third filter plate (51) is provided with a plurality of first filter holes, the fourth filter plate (52) is provided with a plurality of second filter holes, and the cross-sectional area of ​​the first filter holes is greater than the cross-sectional area of ​​the second filter holes.

5. The rigid-flexible combined ozone-liquid emulsion mixing and separation equipment according to claim 4, It is characterized in that A sawtooth separation plate (54) is arranged above the fourth filter plate (52), and a plurality of sawteeth in different directions are arranged inside the sawtooth separation plate (54).

6. The rigid-flexible combined ozone-liquid emulsion mixing and separation equipment according to claim 1, It is characterized in that Two separation stirring units are provided, and the stirring directions of the two separation stirring units are opposite; the separation stirring units comprise a separation stirring motor (63), a separation stirring shaft and a plurality of separation stirring blades (61); the shell of the separation stirring motor (63) is fixed to the outside of the bottom of the storage separation barrel (44); the output shaft of the separation stirring motor (63) passes through the bottom of the storage separation barrel (44) and is fixedly connected to the separation stirring shaft; and the plurality of separation stirring blades (61) are fixed on the separation stirring shaft in a fan shape.

7. The rigid-flexible combined ozone-liquid emulsion mixing and separation equipment according to claim 1, It is characterized in that The side stirring unit comprises a side stirring motor, a side stirring shaft and a plurality of side stirring blades. The shell of the side stirring motor is fixed to the outer side of the side of the storage separation barrel (44). The output shaft of the side stirring motor passes through the side wall of the storage separation barrel (44) and is fixedly connected to the side stirring shaft. The plurality of side stirring blades are fixed to the circumference of the side stirring shaft. A flexible brush is arranged at one end of the side stirring blade away from the side stirring shaft.

8. The rigid-flexible combined ozone-liquid emulsion mixing and separation equipment according to claim 1, It is characterized in that The ozone reflux port is located above the ozone filter unit, the ozone reflux port is connected to an ozone reflux pipe (12), one end of the ozone reflux pipe (12) away from the ozone reflux port is connected to an ozone input pipe (15), and a second gas sensor (53) is arranged on the ozone reflux pipe (12).

9. The rigid-flexible combined ozone-liquid emulsion mixing and separation equipment according to claim 1, It is characterized in that The liquid emulsion outlet is connected to a finished product outflow pipe (64) and a liquid emulsion return pipe (41); a third gas sensor (66) is provided at the connection between the finished product outflow pipe (64) and the liquid emulsion return pipe (41); and the other end of the liquid emulsion return pipe (41) is connected to a round cyclone separation device (200).

10. A rigid-flexible combined ozone-liquid emulsion mixed separation method, It is characterized in that The ozone-liquid emulsion mixing separation device with a rigid-flexible combination as described in any one of claims 1 to 9 is used, and the specific steps are as follows: S1, liquid emulsion and ozone enter the mixing pipe through the liquid emulsion input pipe (8) and the ozone input pipe (15) respectively; S2, liquid emulsion and ozone complete the mixed sterilization operation in the mixing pipeline under the action of the static mixer, and form an ozone-liquid emulsion gas-liquid two-phase mixed flow; S3, the ozone-liquid emulsion mixed flow enters from the top of the drum cylinder (26), and the drum stirring unit stirs the ozone-liquid emulsion mixed flow under the drive of the stirring driving unit, and the first separation of ozone-liquid emulsion is achieved under the action of gravity, centrifugal force and buoyancy; Ozone gas enters the storage and separation device (400) from the ozone outlet of the upper drum, and the liquid emulsion-ozone mixed flow flowing out from the outlet pipe (34) at the bottom of the drum is detected by the first gas sensor (30) to determine whether it needs to enter the multi-tube separation device (300) for re-separation, as follows: S31, when further separation is required, the drum solenoid valve (28) and the drum multi-tube solenoid valve (69) are opened, and the liquid emulsion-ozone mixed flow passes through the drum solenoid valve (28) and the drum multi-tube solenoid valve (69) and enters the ozone-liquid emulsion mixed flow delivery pipeline (36) of the multi-tube separation device (300) from the first drum liquid emulsion outlet pipeline (27). The ozone-liquid emulsion mixed flow is separated for the second time in the multi-tube separation device (300) composed of a plurality of solenoid valves and a plurality of single tubes (37), and the ozone enters the storage separation device (400) from the ozone output pipeline (39), and the liquid emulsion enters the storage separation device (400) from the liquid emulsion output pipeline (40); wherein, the higher the content of ozone gas in the ozone-liquid emulsion mixed flow, the longer the path of the ozone-liquid emulsion mixed flow in the multi-tube separation device (300); S32, when further separation is not required, the barrel solenoid valve (28) is opened, the barrel multi-tube solenoid valve (69) is closed, and the liquid milk flows through the barrel solenoid valve (28) and enters the storage separation barrel (44) through the second barrel liquid milk outlet pipe (29); S4, after the ozone enters the storage and separation barrel (44), it is filtered by the ozone filter unit arranged on the top thereof and then discharged from the ozone reflux port; After the liquid emulsion enters the storage separation barrel (44), it is finally separated by stirring at the separation stirring unit at the bottom and the side stirring unit at the side. The residual ozone gas rises and is discharged after passing through the ozone filtering unit. The liquid emulsion after separation is discharged from the liquid emulsion outlet.

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