A vacuum homogenizing emulsifier

Abstract

The present invention discloses a vacuum homogenizing emulsifier, which, with the help of an emulsifier, can fully mix and stir water-phase raw materials, oil-phase raw materials, etc., and complete the emulsification process. During operation, it has the ability to eliminate bubbles in raw materials and finished products, has the ability to automatically separate impurities in raw materials, and can effectively improve the emulsification efficiency while avoiding demulsification. The main structure of the application includes an emulsifying pot with an open top, a pot cover, and a vacuum tube. The pot cover is provided with a main shaft, and the main shaft is provided with a stirring structure. It also includes a stirring motor. A reverse retention cylinder is provided in the emulsifying pot, and a liquid return loop is formed between the reverse retention cylinder and the inner side wall of the emulsifying pot. A plurality of reverse cylinder connecting rods are provided on the inner side wall of the emulsifying pot. The reverse retention cylinder includes a reverse upper cylinder and a reverse lower cylinder. The inner diameter of the reverse upper cylinder gradually decreases from top to bottom, and the inner diameter of the reverse lower cylinder gradually increases from top to bottom. The stirring structure includes a plurality of stirring rods provided on the main shaft and located in the reverse retention cylinder.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment and emulsification devices, and in particular relates to a vacuum homogenizing emulsifier. Background Art

[0002] Emulsification is the phenomenon in which a liquid is evenly dispersed in tiny droplets throughout another immiscible liquid. Emulsification occurs at the liquid-liquid interface, where two immiscible liquids, such as oil and water, separate into two layers in a container: the less dense oil in the upper layer and the denser water in the lower layer. With the addition of an appropriate surfactant and vigorous stirring, the oil is dispersed in the water, forming an emulsion. This process is called emulsification. Vacuum homogenizers are often used in the pharmaceutical field to produce products. These systems integrate mixing, dispersing, homogenizing, emulsifying, and powder extraction. They can also be used in conjunction with peripheral oil and water phase tanks, as well as vacuum and heating / cooling systems. Summary of the Invention

[0003] The present invention provides a vacuum homogenizing emulsifier, which overcomes the shortcomings of a conventional emulsifying pot in which the upper oil phase raw materials and the lower water phase raw materials rotate and rise together, but the overall contact range of the different raw materials is limited, resulting in insufficient emulsification efficiency. A reverse retention cylinder is provided, so that when stirring, a large amount of upper oil phase liquid in the reverse retention cylinder rotates and rises along the inner wall of the reverse retention cylinder and enters a liquid return loop, while the amount of liquid rotating and rising in the liquid return loop is small, so that most of the oil phase liquid in the liquid return loop can flow out through the lower end of the liquid return loop, and these outflowing oil phase liquids can directly contact with the water phase raw materials relatively below on a large scale, be stirred and emulsified together, so that the overall emulsification efficiency is effectively improved.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A vacuum homogenizing emulsifier comprises an emulsifying pot with an upper opening, a pot cover for closing the opening of the emulsifying pot, a vacuum tube for evacuating the interior of the emulsifying pot, and a servo electric cylinder for driving the pot cover to rise and fall;

[0006] The pot cover is provided with a main shaft that passes through the pot cover and rotates and seals with the pot cover, the main shaft is provided with a stirring structure located inside the emulsification pot, and also includes a stirring motor located outside the emulsification pot and used to drive the main shaft;

[0007] The emulsification pot is provided with a reverse retention cylinder, a liquid return loop is formed between the reverse retention cylinder and the inner wall of the emulsification pot, a plurality of reverse cylinder connecting rods connected to the reverse retention cylinder are provided on the inner wall of the emulsification pot, the reverse retention cylinder includes a reverse upper cylinder and a reverse lower cylinder, the inner diameter of the reverse upper cylinder gradually decreases from top to bottom, and the distance between the outer wall of the reverse upper cylinder and the inner wall of the emulsification pot gradually increases from top to bottom, the inner diameter of the reverse lower cylinder gradually increases from top to bottom, and the distance between the outer wall of the reverse lower cylinder and the inner wall of the emulsification pot gradually decreases from top to bottom;

[0008] The stirring structure includes a plurality of stirring rods which are arranged on the main shaft and located in the reverse retention cylinder.

[0009] Preferably, the emulsification pot is provided with a baffle ring structure that can seal the lower end of the liquid return loop. The baffle ring structure includes a liquid return baffle plate located below the liquid return loop. A plurality of liquid return connecting rods connected to the liquid return baffle plate are provided on the inner side wall of the emulsification pot. When the pot cover closes the opening of the emulsification pot, a liquid return gap is provided between the liquid return baffle plate and the lower end of the liquid return loop.

[0010] Preferably, the baffle ring structure also includes a wall-attached baffle ring arranged coaxially with the liquid return baffle ring, and the outer wall of the wall-attached baffle ring is in contact with the inner wall of the emulsification pot. When the top surface of the liquid return baffle ring plate is in contact with the bottom surface of the reverse lower cylinder: the top surface of the liquid return baffle ring plate is in contact with the bottom surface of the wall-attached baffle ring, and the lower end of the liquid return channel is sealed by the baffle ring structure.

[0011] Preferably, a forward retention cylinder is provided in the emulsification pot, and the forward retention cylinder includes a forward upward cylinder and a forward downward cylinder. The outer wall of the forward upward cylinder is in contact with the inner wall of the emulsification pot, the inner diameter of the forward upward cylinder gradually increases from top to bottom, the outer wall of the forward downward cylinder is in contact with the inner wall of the emulsification pot, the inner diameter of the forward downward cylinder gradually decreases from top to bottom, and the bottom of the forward downward cylinder is in contact with the bottom of the emulsification pot. The stirring structure includes a plurality of stirring rods provided on the main shaft and located in the forward retention cylinder.

[0012] Preferably, an adaptive isolation cylinder is provided in the forward downward cylinder, and the stirring rod located in the forward retention cylinder is also located in the adaptive isolation cylinder. The outer sleeve of the main shaft is provided with a sleeve located in the adaptive isolation cylinder. The sleeve and the main shaft are in sliding fit, and the sleeve and the main shaft are in rotation fit. Two spiral bevels extending along the circumference of the sleeve are provided on the side wall of the sleeve, and the two spiral bevels are symmetrically arranged along the center axis of the sleeve. Two sliding columns corresponding to the spiral bevels are provided on the main shaft, and the sliding columns are in sliding fit with the corresponding spiral bevels. A number of isolation cylinder connecting rods connecting the adaptive isolation cylinder are provided on the sleeve;

[0013] When the slide column slides to the lowest point of the chute: the space between the adaptive isolation cylinder and the bottom of the emulsification pot is the discharge gap;

[0014] When the bottom of the adaptive isolation tube contacts the bottom of the emulsification pot: the sliding column is in the middle of the spiral chute, and the bottom of the adaptive isolation tube and the bottom of the emulsification pot are sealed.

[0015] Preferably, a plurality of stirring plates are provided at the lower part of the side wall of the main shaft, the stirring plates are perpendicular to the bottom of the emulsification pot, and the stirring plates are evenly distributed along the circumference of the main shaft. The bottom of the emulsification pot is provided with a first sinking groove opening to the bottom surface of the emulsification pot. The bottom surface of the stirring plate is in the first sinking groove, and there is a gap between the bottom surface of the stirring plate and the bottom of the first sinking groove.

[0016] Preferably, the bottom of the emulsifying pot is provided with a second sink groove opening at the bottom of the first sink groove. When the bottom of the adaptive isolation cylinder contacts the bottom of the emulsifying pot, there is a gap between the notch of the second sink groove and the bottom of the main shaft.

[0017] Preferably, the main shaft includes an upper shaft section, a jet flat cylinder with closed ends and a lower extension tube arranged in sequence from top to bottom. The upper end of the lower extension tube is connected to the interior of the jet flat cylinder. The lower extension tube is provided with a plurality of guide impellers fixed relative to the lower extension tube. A plurality of jet mixing holes are provided on the circumferential side wall of the jet flat cylinder, and the injection direction of the jet mixing hole is toward the inner wall of the opposite upper cylinder.

[0018] Preferably, the pot cover comprises an outer ring cover and an inner circular cover which can be pressed together with the outer ring cover, wherein the outer ring cover is provided with a cover hole, and when the inner circular cover and the outer ring cover are pressed together, the inner circular cover seals the cover hole, and the inner circular cover and the cover hole are sealed;

[0019] The main shaft passes through the inner circular cover and cooperates with the inner circular cover in a rotating seal. The servo electric cylinder is used to drive the inner circular cover, the main shaft and the stirring motor to rise and fall together, and also includes an outer lifting cylinder for driving the outer ring cover to rise and fall.

[0020] The beneficial effects of the present invention are: it overcomes the shortcomings of the conventional emulsifying pot in which the upper oil phase raw materials and the lower water phase raw materials rotate and rise together, but the overall contact range of the different raw materials is limited, resulting in insufficient emulsification efficiency. A reverse retention cylinder is provided, so that when stirring, a large amount of upper oil phase liquid in the reverse retention cylinder rotates and rises along the inner wall of the reverse retention cylinder and enters the liquid return loop, while the amount of liquid rotating and rising in the liquid return loop is small, so that most of the oil phase liquid in the liquid return loop can flow out through the lower end of the liquid return loop, and these outflowing oil phase liquids can directly contact with the water phase raw materials relatively below on a large scale, be stirred and emulsified together, so that the overall emulsification efficiency is effectively improved; during the working process, it has the ability to eliminate bubbles in raw materials and finished products; it has the ability to automatically separate impurities in raw materials, and the function of separating impurities includes separating and isolating light impurities and separating and isolating heavy impurities, with good overall separation effect and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of a part of the structure of the present invention;

[0023] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 is a cross-sectional view of the present invention;

[0025] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0026] Figure 6 yes Figure 4 Enlarged view of point C in the middle.

[0027] Figure numerals: emulsifying pot 1, first trough 1a, second trough 1b, pot cover 2, outer ring cover 201, inner circular cover 202, vacuum tube 21, main shaft 3, upper shaft section 301, jet flat cylinder 302, jet mixing hole 302a, lower extension tube 303, sleeve 3.1, spiral chute 3.1a, sliding column 3.2, reverse retention cylinder 4, liquid return annular channel 4a, reverse upper cylinder 401, reverse lower cylinder 402, annular inner retraction area 403, reverse cylinder connecting rod 4.1, stirring rod 501, stirring plate 502, liquid return baffle plate 601, liquid return connecting rod 601.1, wall-attached baffle ring 602, forward retention cylinder 7, forward upper cylinder 701, forward lower cylinder 702, annular outer retraction area 703, adaptive isolation cylinder 8, isolation cylinder connecting rod 8.1. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown,

[0030] A vacuum homogenizing emulsifying machine comprises an emulsifying pot 1 with an opening at the top, a pot cover 2 for closing the opening of the emulsifying pot 1, a vacuum tube 21 for evacuating the interior of the emulsifying pot 1, and a servo electric cylinder for driving the pot cover 2 to rise and fall;

[0031] The pot cover 2 is provided with a main shaft 3 that passes through the pot cover 2 and rotates and seals with the pot cover 2. The main shaft 3 is provided with a stirring structure located inside the emulsifying pot 1, and also includes a stirring motor located outside the emulsifying pot 1 and used to drive the main shaft 3;

[0032] The emulsifying pot 1 is provided with a reverse retention cylinder 4, and a liquid return loop 4a is formed between the reverse retention cylinder 4 and the inner wall of the emulsifying pot 1. A plurality of reverse cylinder connecting rods 4.1 connected to the reverse retention cylinder 4 are provided on the inner wall of the emulsifying pot 1. The reverse retention cylinder 4 includes a reverse upper cylinder 401 and a reverse lower cylinder 402. The inner diameter of the reverse upper cylinder 401 gradually decreases from top to bottom, and the distance between the outer wall of the reverse upper cylinder 401 and the inner wall of the emulsifying pot 1 gradually increases from top to bottom. The inner diameter of the reverse lower cylinder 402 gradually increases from top to bottom, and the distance between the outer wall of the reverse lower cylinder 402 and the inner wall of the emulsifying pot 1 gradually decreases from top to bottom.

[0033] The stirring structure includes a plurality of stirring rods 501 disposed on the main shaft 3 and located in the reverse retention cylinder 4 .

[0034] The inner wall of the emulsifying pot 1 is a bottomless cylinder. The maximum distance between the reverse retention cylinder 4 and the inner wall of the emulsifying pot 1 is M, and the minimum distance between the reverse retention cylinder 4 and the main shaft 3 is L, where L is greater than 3M. The outer end of the vacuum tube 21 is connected to the vacuum pump, while the inner end of the vacuum tube 21 communicates with the interior of the emulsifying pot 1 (the inner end of the vacuum tube 21 does not contact the raw materials, emulsifier, or emulsion in the emulsifying pot 1). In this embodiment, the vacuum tube 21 is mounted on the pot lid 2, and the vacuum tube 21 and the vacuum pump are connected via a deformable tubing such as a metal bellows or a plastic hose. Within the liquid return loop 4a, the area near the connection between the reverse upper cylinder 401 and the reverse lower cylinder 402 is an annular inner retracted area 403. The reverse cylinder connecting rod 4.1 also serves as an agitation mechanism.

[0035] The servo electric cylinder drives the pot cover 2 to rise. After the operator adds the liquid raw material and emulsifier into the emulsifying pot 1, the servo electric cylinder drives the pot cover 2 to descend and close the opening of the emulsifying pot 1. At this time, the liquid level is lower than the upper end of the reverse retention cylinder 4 and the liquid level is higher than the lower end of the reverse retention cylinder 4.

[0036] The stirring motor is started, driving the main shaft 3 and the stirring mechanism to stir the liquid raw materials in the emulsification pot 1, gradually forming an emulsion until the emulsification is complete. During this process, a vacuum pump and vacuum tube 21 are used to maintain a negative pressure within the emulsion (this negative pressure prevents the liquid raw materials from entering the vacuum tube 21). This eliminates bubbles near the top of the liquid surface (the bubbles will burst, and the air within them will be discharged above the liquid surface). The lid 2 can then be raised again, and the produced emulsion can be removed by pumping. Alternatively, a valve can be provided on the emulsification pot 1 to allow the produced emulsion to be discharged through the valve. After a certain number of uses, the interior of the emulsification pot 1 can be cleaned with a cleaning fluid.

[0037] In a conventional emulsifying pot 1, during the stirring and emulsifying process, the liquid in the emulsifying pot 1 will rotate, and the liquid level near the side wall of the emulsifying pot 1 will become higher, while the liquid level in the center will decrease ("side high middle low"), i.e., in a vortex shape. Unlike the conventional emulsifying pot 1, the present invention has a reverse retention tube 4 relatively close to the side. After the stirring starts, the main direction of the liquid is still to rotate and "side high middle low", but the difference is that the reverse retention tube 4 will temporarily separate a part of the liquid. At the beginning, a large amount of liquid will rise while rotating along the inner wall of the reverse retention tube 4, and a small amount of liquid will rise while rotating along the return liquid loop 4a (L>3M). After the liquid rises and passes over the top of the reverse retention tube 4, the amount of liquid coming from the inside of the reverse retention tube 4 is significantly greater than that of the reverse retention tube 4. Considering the amount of liquid flowing through the liquid return channel 4a, the main flow direction of the liquid in the reverse retention tube 4 is naturally as follows: "The liquid rises while rotating along the inner wall of the reverse retention tube 4. After a portion of the liquid passes over the top of the reverse retention tube 4, it either directly enters the liquid return channel 4a or first reaches the inner wall of the emulsifying pot 1 (the part above the reverse retention tube 4) and then enters the liquid return channel 4a under the action of gravity." Therefore, throughout the entire subsequent process, most of the liquid in the liquid return channel 4a flows out through the lower end of the liquid return channel 4a. It should be emphasized here that the overall flow direction of the liquid in the liquid return channel 4a is not simply downward movement, but also rotation (rotation along the inner wall of the emulsifying pot 1).

[0038] It should be emphasized that no matter what the stirring rate is, as long as L is much larger than M, the goal of most of the liquid in the liquid return channel 4a flowing out through the lower end of the liquid return channel 4a can always be achieved.

[0039] Taking the mixing and emulsification of an aqueous and oily phase feedstock (where the density of the aqueous feedstock is greater than that of the oily phase feedstock) as an example (this example will be used later), before stirring begins, the aqueous feedstock is relatively below, while the oily phase feedstock is relatively above. Once stirring begins, the aqueous feedstock rotates and rises, and a portion of the aqueous feedstock comes into contact with a portion of the oily phase feedstock. Under the action of the emulsifier and the agitation structure, emulsification occurs, but the overall "water below, oil above" trend remains unchanged. To address this issue, a reverse retention tube 4 is provided to allow a portion of the oily phase feedstock to flow from above, over the top of the reverse retention tube 4, and into the liquid return channel 4a. The majority of the oily phase feedstock in the liquid return channel 4a then flows out of the space between the sidewall of the emulsifying pot 1 and the lower end of the reverse retention tube 4, directly contacting the rotating and rising aqueous feedstock below. This significantly improves the contact efficiency between the aqueous and oily phase feedstocks, and, in conjunction with the agitation structure, enhances emulsification efficiency.

[0040] Note: The faster the stirring mechanism's agitation rate, the better. Intense shear forces can break up emulsion droplets, leading to oil-water separation, also known as demulsification. Therefore, the rotational speed of main shaft 3 (the agitation mechanism) is limited (the specific limit can be determined based on actual testing). Given an upper limit on the agitation rate (and preventing demulsification), the reverse retention cylinder 4 accelerates the contact and mixing of the oil-phase and water-phase materials, thereby improving emulsification efficiency.

[0041] Furthermore, in many cases, impurities are unavoidable in the emulsion. In some cases, impurity removal is performed before emulsification, while in others, it is performed after emulsification. Naturally, in some cases, impurity removal during emulsification is also possible or necessary. In the present invention, regarding light impurities (impurities that ultimately float above the liquid surface when left at rest are considered light impurities, while impurities that ultimately sink to the bottom of the emulsion when left at rest are considered heavy impurities), once agitation begins, a large amount of light impurities will flow with the liquid from above, over the top of the reverse retention cylinder 4, and into the liquid return channel 4a. As the liquid rotates within the liquid return channel 4a, centrifugal force causes the light impurities to move toward the annular inner zone 403, while the liquid moves toward the sidewalls of the emulsifying pot 1. Due to the presence of the reverse lower cylinder 402, the liquid is unable to continue to carry the light impurities downward, meaning that the annular inner zone 403 traps the light impurities. Consequently, as the agitation process continues, the light impurities accumulate in the annular inner zone 403. The presence of impurities will affect the emulsification efficiency (impurities are stirred together and affect the efficiency of emulsion formation). In the present invention, during the emulsification process, light impurities are continuously allowed to leave the main stirring area as quickly as possible (the stirring structure is not in the liquid return loop 4a), thereby improving the emulsification efficiency.

[0042] The emulsifying pot 1 is provided with a baffle ring structure that can seal the lower end of the liquid return channel 4a. The baffle ring structure includes a liquid return baffle plate 601 located below the liquid return channel 4a. A plurality of liquid return connecting rods 601.1 connected to the liquid return baffle plate 601 are provided on the inner side wall of the emulsifying pot 1. When the pot cover 2 closes the opening of the emulsifying pot 1, a liquid return gap is formed between the liquid return baffle plate 601 and the lower end of the liquid return channel 4a.

[0043] The liquid return connecting rod 601.1 also serves as a stirring structure.

[0044] The installation of the return liquid baffle plate 601 further increases the difficulty of liquid entering the return liquid channel 4a from below, thereby reinforcing the tendency for liquid to exit the return liquid channel 4a from below. After complete emulsification, the liquid level is located between the upper and lower ends of the reverse retention cylinder 4, and light impurities are retained at the top of the liquid surface within the return liquid channel 4a. The servo electric cylinder drives the pot lid 2, spindle 3, and stirring motor upward, and the return liquid baffle plate 601 also rises to a position that seals the lower end of the return liquid channel 4a. This allows the finished emulsion to be quickly extracted directly from the emulsification pot 1 using a liquid extraction pipe. (A small amount of emulsion containing light impurities remains in the return liquid channel 4a. If this does not affect the next emulsification, it can continue to be used and can be cleaned after a certain number of uses. If this does affect the next emulsification, it should be cleaned directly.) Before extracting the finished emulsion from the emulsification pot 1 with a suction pipe, the emulsion should be left to stand for a while to allow heavy impurities to settle to the bottom first. The suction position of the suction pipe should be kept at a certain distance from the bottom of the emulsification pot 1, and the suction position of the suction pipe cannot be within the liquid return loop 4a.

[0045] The baffle ring structure also includes a wall-attached baffle ring 602 arranged coaxially with the liquid return baffle ring. The outer wall of the wall-attached baffle ring 602 is in contact with the inner wall of the emulsifying pot 1. When the top surface of the liquid return baffle plate 601 is in contact with the bottom surface of the reverse lower cylinder 402, the top surface of the liquid return baffle plate 601 is in contact with the bottom surface of the wall-attached baffle ring 602, and the lower end of the liquid return channel 4a is sealed by the baffle ring structure.

[0046] With the wall-adhering baffle ring 602, the return liquid baffle plate 601 does not need to be attached to the inner wall of the emulsifying pot 1. In this way, during the emulsification process, the return liquid baffle plate 601 and the inner wall of the emulsifying pot 1 will not wear each other, which can greatly extend the service life of the return liquid baffle plate 601 and avoid wear of the inner wall of the emulsifying pot 1.

[0047] The emulsifying pot 1 is provided with a forward retention cylinder 7, which includes a forward upward cylinder 701 and a forward downward cylinder 702. The outer wall of the forward upward cylinder 701 is in contact with the inner wall of the emulsifying pot 1, and the inner diameter of the forward upward cylinder 701 gradually increases from top to bottom. The outer wall of the forward downward cylinder 702 is in contact with the inner wall of the emulsifying pot 1, and the inner diameter of the forward downward cylinder 702 gradually decreases from top to bottom. The bottom of the forward downward cylinder 702 is in contact with the inner bottom of the emulsifying pot 1. The stirring structure includes a plurality of stirring rods 501 provided on the main shaft 3 and located in the forward retention cylinder 7.

[0048] The forward retention cylinder 7 is fixed relative to the emulsification pot 1. Within the emulsification pot 1, the area near the connection between the forward upward cylinder 701 and the forward downward cylinder 702 is an annular outer retracted area 703. The stirring structure also includes a plurality of stirring rods 501 located between the forward retention cylinder 7 and the reverse retention cylinder 4 and fixed to the main shaft 3.

[0049] As mentioned above, the presence of impurities can affect emulsification efficiency. In the present invention, during the emulsification process, heavy impurities at the bottom rise with the liquid. Due to centrifugal force, these impurities move toward the annular outer collection area 703. Due to the presence of the upward cylinder 701, the liquid cannot continue to carry the heavy impurities upward, so the annular outer collection area 703 traps the heavy impurities. Thus, as the stirring process progresses, the heavy impurities accumulate in the annular outer collection area 703, thereby improving emulsification efficiency.

[0050] An adaptive isolation cylinder 8 is provided in the forward downward cylinder 702. The stirring rod 501 located in the forward retention cylinder 7 is also located in the adaptive isolation cylinder 8. A sleeve 3.1 located in the adaptive isolation cylinder 8 is provided on the outer shell of the main shaft 3. The sleeve 3.1 and the main shaft 3 are in sliding engagement and rotational engagement. Two spiral chute grooves 3.1a extending circumferentially along the sleeve 3.1 are provided on the side wall of the sleeve 3.1. The two spiral chute grooves 3.1a are symmetrically arranged along the axis of the sleeve 3.1. The main shaft 3 is provided with two sliding posts 3.2 corresponding one to one with the spiral chute 3.1a. The sliding posts 3.2 are in sliding engagement with the corresponding spiral chute 3.1a. The sleeve 3.1 is provided with a plurality of isolation cylinder connecting rods 8.1 connected to the adaptive isolation cylinder 8.

[0051] When the slide column 3.2 slides to the lowest point of the spiral chute 3.1a: the space between the adaptive isolation cylinder 8 and the bottom of the emulsification pot 1 is the discharge gap;

[0052] When the bottom of the adaptive isolation cylinder 8 contacts the bottom of the emulsification pot 1 , the sliding column 3 . 2 is located in the middle of the spiral chute 3 . 1 a , and the bottom of the adaptive isolation cylinder 8 and the bottom of the emulsification pot 1 are sealed.

[0053] The isolating tube connecting rod 8.1 also plays the role of a stirring structure.

[0054] Normally, due to gravity, the bottom of the adaptive isolation cylinder 8 contacts the bottom of the emulsification pot 1. During operation, the slide 3.2 moves relative to the sleeve 3.1 (actually, the sleeve 3.1 rotates and slides). The slide 3.2 slides to the lowest point of the spiral chute 3.1a (during this process, the sleeve 3.1 rises) and remains in this position. The adaptive isolation cylinder 8 rotates with the main shaft 3. After complete emulsification is completed, as the speed of the main shaft 3 decreases, the slide 3.2 begins to slide up along the spiral chute 3.1a, and the sleeve 3.1 spirals downward until the bottom of the adaptive isolation cylinder 8 contacts the bottom of the emulsification pot 1. At this point, heavy impurities accumulated in the annular outer retraction area 703 sink to the bottom between the adaptive isolation cylinder 8 and the positive retention cylinder 7. Afterwards, the finished emulsion can be quickly extracted directly from the emulsification pot 1 using the extraction tube. (A small amount of emulsion containing heavy impurities will eventually remain between the adaptive isolation cylinder 8 and the forward retention cylinder 7. If this does not affect the next emulsification, it can continue to be used. After a certain number of uses, it can be cleaned. If this does affect the next emulsification, it can be cleaned directly.) Before extracting the finished emulsion from the emulsification pot 1 using the extraction tube, it is no longer necessary to let the emulsion stand for a while beforehand; it can be extracted directly. The extraction position of the extraction tube should preferably be inside the adaptive isolation cylinder 8.

[0055] A plurality of stirring plates 502 are provided at the lower portion of the side wall of the main shaft 3. The stirring plates 502 are perpendicular to the bottom of the emulsifying pot 1. The stirring plates 502 are evenly distributed circumferentially along the main shaft 3. A first trough 1a opening to the inner bottom surface of the emulsifying pot 1 is provided at the bottom of the emulsifying pot 1. The bottom surface of the stirring plate 502 is located in the first trough 1a, and there is a gap between the bottom surface of the stirring plate 502 and the bottom of the first trough 1a.

[0056] In the initial stage, heavy impurities are always at the relative bottom, and the stirring plate 502 is also set at a position close to the bottom, so that the bottom liquid raw materials can quickly and in large quantities adhere to the wall with heavy impurities, thereby making full use of the forward retention cylinder 7 to quickly intercept heavy impurities and improve the overall emulsification efficiency.

[0057] The main shaft 3 includes an upper shaft section 301, a jet flat cylinder 302 with closed ends, and a lower extension tube 303 arranged in sequence from top to bottom. The upper end of the lower extension tube 303 is connected to the interior of the jet flat cylinder 302. The lower extension tube 303 is provided with a plurality of guide impellers fixed relative to the lower extension tube 303. The circumferential side wall of the jet flat cylinder 302 is provided with a plurality of jet mixing holes 302a. The injection direction of the jet mixing hole 302a is toward the inner wall of the reverse upper cylinder 401.

[0058] As the main shaft 3 rotates, the presence of the various impellers rapidly draws a portion of the lower layer of liquid into the lower extension tube 303 and jet flat cylinder 302, where it is ejected through the jet mixing hole 302a. This significantly accelerates the contact and fusion efficiency between the aqueous and oil-phase raw materials, significantly improving emulsification efficiency. Furthermore, since bubbles are encapsulated by liquid, some bubbles in the lower layer cannot easily reach the upper layer. In this solution, the lower layer of liquid, along with the bubbles, is drawn upward and ejected relatively upward, thereby utilizing the vacuum tube 21 to rapidly remove excess air and achieve rapid defoaming.

[0059] The bottom of the emulsifying pot 1 is provided with a second sink 1b opened at the bottom of the first sink 1a. When the bottom of the adaptive isolation cylinder 8 contacts the bottom of the emulsifying pot 1, there is a gap between the notch of the second sink 1b and the bottom of the main shaft 3.

[0060] There is no mutual wear between the main shaft 3 and the bottom of the emulsifying pot 1. Before the rotation starts, the lower end of the lower extension tube 303 is not closed (there is a gap between the notch of the second sink 1b and the bottom of the main shaft 3), and liquid can be smoothly absorbed.

[0061] The pot cover 2 includes an outer ring cover 201 and an inner circular cover 202 that can be pressed together with the outer ring cover 201. The outer ring cover 201 is provided with a cover hole. When the inner circular cover 202 is pressed together with the outer ring cover 201, the inner circular cover 202 seals the cover hole, and the inner circular cover 202 and the cover hole are sealed.

[0062] The main shaft 3 passes through the inner circular cover 202 and rotates and seals with the inner circular cover 202. The servo electric cylinder is used to drive the inner circular cover 202, the main shaft 3 and the stirring motor to rise and fall together, and also includes an outer lifting cylinder for driving the outer ring cover 201 to rise and fall.

[0063] Originally, the spindle 3 had to both lift relative to a lid and maintain a rotational seal with the lid, making it difficult to ensure tightness. In this solution, the spindle 3 and the inner circular lid 202 only need to rotate and seal together, easily ensuring tightness, while lifting and lowering are achieved by the relative lifting of the inner circular lid 202 and the outer ring cover 201.

[0064] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A vacuum homogenizing emulsifier, comprising an emulsifying pot with an upper opening, a pot cover for closing the opening of the emulsifying pot, a vacuum tube for evacuating the interior of the emulsifying pot, and a servo electric cylinder for driving the pot cover to rise and fall; wherein: The pot cover is provided with a main shaft that passes through the pot cover and rotates and seals with the pot cover, the main shaft is provided with a stirring structure located inside the emulsification pot, and also includes a stirring motor located outside the emulsification pot and used to drive the main shaft; The emulsification pot is provided with a reverse retention cylinder, a liquid return loop is formed between the reverse retention cylinder and the inner wall of the emulsification pot, a plurality of reverse cylinder connecting rods connected to the reverse retention cylinder are provided on the inner wall of the emulsification pot, the reverse retention cylinder includes a reverse upper cylinder and a reverse lower cylinder, the inner diameter of the reverse upper cylinder gradually decreases from top to bottom, and the distance between the outer wall of the reverse upper cylinder and the inner wall of the emulsification pot gradually increases from top to bottom, the inner diameter of the reverse lower cylinder gradually increases from top to bottom, and the distance between the outer wall of the reverse lower cylinder and the inner wall of the emulsification pot gradually decreases from top to bottom; The stirring structure includes a plurality of stirring rods which are arranged on the main shaft and located in the reverse retention cylinder.

2. A vacuum homogenizing emulsifier according to claim 1, characterized in that: The emulsifying pot is provided with a baffle ring structure that can seal the lower end of the liquid return loop. The baffle ring structure includes a liquid return baffle plate located below the liquid return loop. A plurality of liquid return connecting rods connected to the liquid return baffle plate are provided on the inner side wall of the emulsifying pot. When the pot cover closes the opening of the emulsifying pot, a liquid return gap is formed between the liquid return baffle plate and the lower end of the liquid return loop.

3. A vacuum homogenizing emulsifier according to claim 2, characterized in that: The baffle ring structure also includes a wall-attached baffle ring coaxially arranged with the liquid return baffle ring, the outer wall of the wall-attached baffle ring is in contact with the inner wall of the emulsifying pot, and when the top surface of the liquid return baffle plate is in contact with the bottom surface of the reverse lower cylinder: the top surface of the liquid return baffle plate is in contact with the bottom surface of the wall-attached baffle ring, and the lower end of the liquid return channel is sealed by the baffle ring structure.

4. A vacuum homogenizing emulsifier according to claim 1, 2 or 3, characterized in that: A forward retention cylinder is provided in the emulsification pot, and the forward retention cylinder includes a forward upward cylinder and a forward downward cylinder. The outer wall of the forward upward cylinder is in contact with the inner wall of the emulsification pot, the inner diameter of the forward upward cylinder gradually increases from top to bottom, the outer wall of the forward downward cylinder is in contact with the inner wall of the emulsification pot, the inner diameter of the forward downward cylinder gradually decreases from top to bottom, and the bottom of the forward downward cylinder is in contact with the inner bottom of the emulsification pot. The stirring structure includes a plurality of stirring rods provided on the main shaft and located in the forward retention cylinder.

5. A vacuum homogenizing emulsifier according to claim 4, characterized in that: An adaptive isolation cylinder is provided in the forward downward cylinder, and the stirring rod located in the forward retention cylinder is also located in the adaptive isolation cylinder. A sleeve located in the adaptive isolation cylinder is provided on the outer sleeve of the main shaft. The sleeve and the main shaft are in sliding cooperation, and the sleeve and the main shaft are in rotation cooperation. Two spiral bevels extending along the circumference of the sleeve are provided on the side wall of the sleeve. The two spiral bevels are symmetrically arranged along the center of the sleeve axis. Two sliding columns corresponding to the spiral bevels are provided on the main shaft. The sliding columns are in sliding cooperation with the corresponding spiral bevels. A plurality of isolation cylinder connecting rods connected to the adaptive isolation cylinder are provided on the sleeve. When the slide column slides to the lowest point of the chute: the space between the adaptive isolation cylinder and the bottom of the emulsification pot is the discharge gap; When the bottom of the adaptive isolation tube contacts the bottom of the emulsification pot: the sliding column is in the middle of the spiral chute, and the bottom of the adaptive isolation tube and the bottom of the emulsification pot are sealed.

6. A vacuum homogenizing emulsifier according to claim 4, characterized in that: A plurality of stirring plates are provided at the lower part of the side wall of the main shaft. The stirring plates are perpendicular to the bottom of the emulsification pot. The stirring plates are evenly distributed along the circumference of the main shaft. A first sinking groove opening to the bottom surface of the emulsification pot is provided at the bottom of the emulsification pot. The bottom surface of the stirring plate is located in the first sinking groove, and there is a gap between the bottom surface of the stirring plate and the bottom of the first sinking groove.

7. A vacuum homogenizing emulsifier according to claim 6, characterized in that: The bottom of the emulsifying pot is provided with a second sinking groove opened at the bottom of the first sinking groove. When the bottom of the adaptive isolation cylinder contacts the bottom of the emulsifying pot, there is a gap between the notch of the second sinking groove and the bottom of the main shaft.

8. A vacuum homogenizing emulsifier according to claim 1, 2 or 3, characterized in that: The main shaft includes an upper shaft section, a jet flat cylinder with closed ends and a lower extension tube arranged in sequence from top to bottom. The upper end of the lower extension tube is connected to the interior of the jet flat cylinder. The lower extension tube is provided with a plurality of guide impellers fixed relatively to the lower extension tube. A plurality of jet mixing holes are provided on the circumferential side wall of the jet flat cylinder, and the injection direction of the jet mixing hole is toward the inner wall of the opposite upper cylinder.

9. The vacuum homogenizing emulsifier according to claim 7, characterized in that: The main shaft includes an upper shaft section, a jet flat cylinder with closed ends and a lower extension tube arranged in sequence from top to bottom. The upper end of the lower extension tube is connected to the interior of the jet flat cylinder. The lower extension tube is provided with a plurality of guide impellers fixed relatively to the lower extension tube. A plurality of jet mixing holes are provided on the circumferential side wall of the jet flat cylinder, and the injection direction of the jet mixing hole is toward the inner wall of the opposite upper cylinder.

10. A vacuum homogenizing emulsifier according to claim 1, 2 or 3, characterized in that: The pot cover comprises an outer ring cover and an inner circular cover which can be pressed together with the outer ring cover. The outer ring cover is provided with a cover hole. When the inner circular cover and the outer ring cover are pressed together, the inner circular cover seals the cover hole, and the inner circular cover and the cover hole are sealed. The main shaft passes through the inner circular cover and cooperates with the inner circular cover in a rotating seal. The servo electric cylinder is used to drive the inner circular cover, the main shaft and the stirring motor to rise and fall together, and also includes an outer lifting cylinder for driving the outer ring cover to rise and fall.

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