A salted egg yolk salad dressing, a preparation method thereof and a preparation emulsifying device

Abstract

This invention discloses a salted egg yolk salad dressing, its preparation method, and an emulsifying device for preparation. The raw materials for the salted egg yolk salad dressing include the following components: water, maltose, heat-resistant egg yolk liquid, salted egg yolk, monosodium glutamate, edible salt, potassium sorbate, β-carotene, soybean oil, xanthan gum, and brewed vinegar. The raw materials are processed using the emulsifying device provided by this invention. After the oil phase mixture is fully mixed, a servo hydraulic cylinder drives a sealed piston to descend, causing the oil phase mixture to be pressurized and ejected at high speed from a high-pressure discharge pipe and nozzle. Under centrifugal force, it disperses into smaller droplets, which are evenly sprayed to different positions, contacting and colliding with the water phase mixture, rapidly fusing and improving emulsification efficiency and quality. The sealed piston then enters a reciprocating lifting and lowering anti-sedimentation suction spray mode, which can suck in and spray sediment and mixture, thereby improving the emulsification effect. The resulting salted egg yolk salad dressing product has a delicious flavor, uniform texture, and is suitable for a wide range of consumers.

Description

Technical Field

[0001] This invention relates to the field of food technology, and in particular to a salted egg yolk salad dressing, its preparation method, and an emulsifying device for preparation. Background Technology

[0002] Salted egg yolks are a traditional food, rich in protein, phospholipids, and vitamins, making them an ideal food for supplementing vitamins and enhancing brain function. Salted egg yolks are also rich in essential nutrients such as calcium, potassium, iron, and phosphorus, which are beneficial for bone development and can help prevent anemia and improve overall health. Despite their many benefits, salted egg yolks are a semi-processed product, and their main sales channel is through their use in fillings such as mooncakes, egg yolk pies, and egg yolk pastries.

[0003] Most commercially available egg yolk salad dressings only contain egg yolks, resulting in a monotonous flavor that fails to meet diverse consumer needs. While there has been no successful attempt in the industry to create a high-quality salted egg yolk salad dressing using salted egg yolks as the primary ingredient, the urgent need within the industry is to develop a flavorful and nutritious salted egg yolk salad dressing that can be mass-produced, catering to consumers who prefer salted egg yolks and salad dressings.

[0004] In addition, existing salad dressing emulsification devices often result in salad dressing adhering to the inner wall and salted egg yolks and other materials settling, leading to insufficient mixing and uneven emulsification, which affects the emulsification effect. Furthermore, when the mixtures from the aqueous premixing tank and the oil premixing tank are mixed in the emulsification tank, the aqueous phase mixture from the aqueous premixing tank is first introduced into the emulsification tank, and then the oil phase mixture from the oil premixing tank is gradually introduced into the emulsification tank. The initial velocity of the oil phase mixture is slow, and it cannot quickly blend with the aqueous phase mixture during the introduction process, thus failing to improve the emulsification efficiency and quality of the emulsification tank. Summary of the Invention

[0005] To address the aforementioned problems, one objective of this invention is to provide a salted egg yolk salad dressing, the raw materials of which, by weight, comprise the following components: 10-20 parts water, 3-5 parts maltitol, 2-5 parts heat-resistant egg yolk liquid, 30-40 parts salted egg yolk, 0.4-0.8 parts monosodium glutamate, 1-2 parts edible salt, 0.04-0.08 parts potassium sorbate, 0.1-0.3 parts β-carotene, 35-45 parts soybean oil, 0.2-0.3 parts xanthan gum, and 1-1.5 parts brewed vinegar.

[0006] The second objective of this invention is to provide a method for preparing salted egg yolk salad dressing as described above, comprising the following steps:

[0007] (1) Weigh the raw materials according to the stated weight proportions;

[0008] (2) Divide the soybean oil into two portions, add salted egg yolks to one portion of the soybean oil, grind it into salted egg yolk paste, and then pack the salted egg yolk paste into bags for sterilization; wherein, the weight ratio of salted egg yolks to soybean oil is 2.5~3:1;

[0009] (3) Add maltitol, heat-resistant egg yolk liquid, monosodium glutamate, edible salt, potassium sorbate, β-carotene, brewed vinegar, and salted egg yolk paste to water, stir and dissolve to obtain an aqueous mixture;

[0010] (4) Add xanthan gum to another part of soybean oil and stir to disperse xanthan gum evenly to obtain an oil phase mixture;

[0011] (5) Mix the water phase mixture and the oil phase mixture, stir quickly until emulsification is complete, and obtain salted egg yolk salad dressing.

[0012] Furthermore, the water temperature is 15-20℃, the soybean oil temperature is 15-20℃, the room temperature is 15-25℃, and the heat-resistant egg yolk liquid temperature is 0-8℃.

[0013] Furthermore, after the salted egg yolk mud is packaged, it is sterilized by water bath at a temperature of 90℃~95℃ for 50-80 minutes.

[0014] The third objective of this invention is to provide an emulsification device for preparing the salted egg yolk salad dressing described above, comprising a frame, an emulsification tank, an aqueous phase premixing tank, and an oil phase premixing tank. The emulsification tank and the aqueous phase premixing tank are mounted on the frame. The bottom of the emulsification tank has a sauce outlet with a sauce outlet valve installed thereon. The bottom of the aqueous phase premixing tank has an aqueous phase outlet pipe, the other end of which is connected to the emulsification tank. An aqueous phase outlet valve is installed on the aqueous phase outlet pipe. The oil phase premixing tank is rotatably mounted on the emulsification tank via a first rotary bearing. The oil phase premixing tank is coaxially positioned above the emulsifying tank. From top to bottom, it is divided into a premixing section, an expanding discharge section, and an emulsifying section. The upper part of the premixing section is located above the emulsifying tank, and an oil phase feed pipe is installed on the premixing section. The emulsifying section is located inside the emulsifying tank. The inner diameters of the premixing section and the emulsifying section are the same and smaller than the inner diameter of the expanding discharge section. A sealing piston is installed inside the emulsifying tank. The sealing piston can be slidably and sealingly connected to the premixing section and the emulsifying section. An oil phase agitator is rotatably mounted on the upper end of the sealing piston through a first bearing. An oil phase stirring shaft is equipped with oil phase stirring blades. An emulsification tank extends from the upper end of the oil phase stirring shaft. A high-pressure discharge pipe and a suction pipe are installed on the emulsification stirring section. The high-pressure discharge pipe is radially installed at the lower part of the emulsification stirring section and close to its bottom end. A first check valve and a nozzle are installed on the high-pressure discharge pipe. The suction pipe is installed on the bottom end face of the emulsification stirring section and a second check valve is installed on the suction pipe. An emulsification stirring mechanism is installed inside the emulsification tank. The emulsification stirring mechanism includes at least two emulsification stirring shafts, with the second shaft... The bearing is rotatably mounted on the emulsification tank. The axis of the emulsification stirring shaft is parallel to the axis of the oil phase premixing tank. The emulsification stirring shaft is equipped with gears and multiple side emulsification stirring blades. The oil phase premixing tank is equipped with a first gear ring and multiple central emulsification stirring blades. The gears are meshed with the first gear ring. The bearing also includes a first power mechanism and a second power mechanism. The first power mechanism is connected to the oil phase stirring shaft to drive the oil phase stirring shaft to lift and rotate. The second power mechanism is driven by one of the emulsification stirring shafts to drive the emulsification stirring shaft to rotate.

[0015] Furthermore, the first power mechanism includes a mounting base, a servo hydraulic cylinder, a lifting frame, a motor base, and an oil phase stirring motor. The mounting base is fixedly installed on the outer wall of the emulsification tank, the servo hydraulic cylinder is fixedly installed on the mounting base, the lifting frame is fixedly installed on the telescopic end of the servo hydraulic cylinder, the motor base is fixedly installed on the lifting frame, the oil phase stirring motor is fixedly installed on the motor base, the output end of the oil phase stirring motor is connected to the oil phase stirring shaft, and the oil phase stirring shaft is rotatably installed on the lifting frame through a third bearing.

[0016] Furthermore, the central emulsifying stirring blade and the side emulsifying stirring blades are spaced apart in the vertical direction.

[0017] Furthermore, the extraction pipe includes a vertical extraction pipe and a bent extraction pipe. The axis of the vertical extraction pipe is parallel to the axis of the emulsifying tank, and the bent extraction pipe has a bent section parallel to the bottom end face of the emulsifying tank, with multiple extraction ports on the bent section.

[0018] Furthermore, the device also includes an aqueous phase stirring mechanism, which includes an aqueous phase stirring shaft and aqueous phase stirring blades. The aqueous phase stirring shaft is rotatably mounted at the bottom of the aqueous phase premixing tank via a sealed bearing. Multiple aqueous phase stirring blades are mounted on the aqueous phase stirring shaft. The lower end of the aqueous phase stirring shaft extends out of the bottom of the aqueous phase premixing tank and is equipped with a first pulley. The upper end of one of the emulsifying stirring shafts extends out of the emulsifying tank and is equipped with a second pulley. The first pulley and the second pulley are connected by a transmission belt.

[0019] Furthermore, it also includes a wall scraping mechanism, which includes a fixed ring disc, a second rotating disc bearing, and a rotating ring disc. The fixed ring disc is fixedly installed on the inner wall of the emulsifying tank. The outer ring of the second rotating disc bearing is fixedly installed on the fixed ring disc. A second gear ring is fixedly installed on the inner ring of the second rotating disc bearing. The rotating ring disc is located below the fixed ring disc and is fixedly connected to the inner ring of the second rotating disc bearing through a connecting rod. A scraper that contacts and engages with the inner wall of the emulsifying tank is fixed at the lower end of the rotating ring disc.

[0020] The beneficial effects of this invention are:

[0021] Using pre-cured salted egg yolks as raw materials, a new type of salted egg yolk salad dressing has been developed through emulsification and modulation technology. It has a delicious taste, uniform texture, and is suitable for a wide range of people. At the same time, the production process is simple and the cost is low, providing people with a food with a completely new sensory experience.

[0022] By placing the oil phase premixing tank inside the emulsification tank, after the oil phase mixture is fully mixed, the sealing piston is driven to descend by a servo hydraulic cylinder, moving it from the premixing section to the expanding discharge section. This causes the oil phase mixture to flow downwards into the emulsification section, thus transferring its position. The sealing piston is then driven to descend again, squeezing the oil phase mixture within the emulsification section. This causes the oil phase mixture to be ejected at high speed from the high-pressure discharge pipe and nozzle with a large initial velocity. Since the oil phase premixing tank is rotating, the ejected oil phase mixture not only has a large initial velocity but is also dispersed into smaller droplets under centrifugal force, evenly sprayed to different positions, and colliding with the water phase mixture for rapid fusion, thus improving emulsification efficiency and quality.

[0023] When the sealed piston enters the reciprocating lifting anti-sedimentation suction and spray mode, the sediment and mixture at the bottom of the emulsification tank can be sucked into the emulsification and stirring section through the suction pipe. The bent suction pipe rotates together with the oil phase premixing tank, and the sediment and mixture at different positions at the bottom of the emulsification tank can be sucked into the emulsification and stirring section through the suction port. The sediment and mixture are then sprayed out at high speed from the nozzle, where they collide, contact, and merge with the mixture at a higher position, thereby improving the emulsification effect.

[0024] During the emulsification process, the scraper rotates to scrape away the material adhering to the inner wall of the emulsification tank, so that the material is fully stirred and the emulsification effect is improved.

[0025] During the emulsification process, the next batch of raw materials can be added to the aqueous phase mixing tank in advance for premixing, which can reduce the premixing time of the next batch of emulsification and thus improve emulsification efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the emulsification device provided in the embodiment;

[0027] Figure 2 This is a schematic diagram of another state of the emulsification device provided in the embodiment;

[0028] Figure 3 yes Figure 1 A magnified view of a section at point A in the middle;

[0029] Figure 4 yes Figure 1 A magnified view of a section at point B in the middle;

[0030] Figure 5 yes Figure 1 A cross-sectional view along the CC line;

[0031] In the diagram, 1. Frame; 2. Emulsifying tank; 21. Sauce outlet; 22. Sauce outlet valve; 23. First turntable bearing; 3. Aqueous phase premixing tank; 31. Aqueous phase outlet pipe; 32. Aqueous phase outlet valve; 4. Oil phase premixing tank; 41. Premixing section; 42. Expanding diameter feeding section; 43. Emulsifying section; 44. Oil phase feed pipe; 45. Sealing piston; 46. Oil phase stirring shaft; 47. Oil phase stirring blade; 48. High-pressure outlet pipe; 481. First check valve; 482. Nozzle; 49. Extraction pipe; 491. Second check valve; 492. Extraction port; 5. Emulsifying stirring mechanism; 51. Emulsifying agitator. 52. Gear; 53. Side emulsifying agitator blades; 54. First gear ring; 55. Central emulsifying agitator blades; 6. First power mechanism; 61. Mounting base; 62. Servo hydraulic cylinder; 63. Lifting frame; 64. Motor base; 65. Oil phase agitator motor; 7. Second power mechanism; 8. Water phase agitator mechanism; 81. Water phase agitator shaft; 82. Water phase agitator blades; 83. First pulley; 84. Second pulley; 85. Transmission belt; 9. Wall scraping mechanism; 91. Fixed ring disc; 92. Second turntable bearing; 93. Rotating ring disc; 94. Second gear ring; 95. Connecting rod; 96. Scraper. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of protection of this invention.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terms "first" and "second" used in this invention do not represent a specific quantity or order, but are merely used for distinguishing names. Example 1

[0034] A salted egg yolk salad dressing comprises the following ingredients in parts by weight: 15.69 parts water, 4 parts maltitol, 3 parts heat-resistant egg yolk liquid, 34 parts salted egg yolk, 0.6 parts monosodium glutamate, 1.1 parts edible salt, 0.6 parts potassium sorbate, 0.2 parts β-carotene, 40 parts soybean oil, 0.25 parts xanthan gum, and 1.1 parts brewed vinegar.

[0035] The preparation method of the above-mentioned salted egg yolk salad dressing includes the following steps:

[0036] (1) Weigh the raw materials according to the above-mentioned weight proportions;

[0037] (2) Divide the soybean oil into two portions, add salted egg yolks to one portion of the soybean oil and grind it into salted egg yolk paste, then pack the salted egg yolk paste into bags and sterilize it by water bath sterilization at a temperature of 95°C for 60 minutes; the weight ratio of salted egg yolks to soybean oil is 2.8:1.

[0038] (3) Add maltitol, heat-resistant egg yolk liquid, monosodium glutamate, edible salt, potassium sorbate, β-carotene, brewed vinegar and salted egg yolk paste to water, stir to dissolve, and obtain an aqueous mixture; keep the water temperature at 18℃, the soybean oil temperature at 18℃, the room temperature at 23℃, and the heat-resistant egg yolk liquid temperature at 5℃.

[0039] (4) Add xanthan gum to another part of soybean oil and stir to disperse xanthan gum evenly to obtain an oil phase mixture;

[0040] (5) Mix the water phase mixture and the oil phase mixture, control the flow rate of the oil phase mixture into the water phase mixture, stir quickly and evenly, emulsify at 3000 rpm / min for 2 minutes until emulsification is complete, and obtain salted egg yolk salad dressing.

[0041] Among them, heat-resistant egg yolk liquid is stored frozen. When using it, it should be taken out of the warehouse, cleaned and sterilized, and then the outer packaging should be removed. It should be placed in a special egg thawing box and placed in a sealed refrigerator at 1-8℃ for 48 hours before use. Example 2

[0042] This embodiment is largely the same as Embodiment 1, except that the salted egg yolk salad dressing provided includes the following components by weight: 10 parts water, 3 parts maltitol, 5 parts heat-resistant egg yolk liquid, 38 parts salted egg yolk, 0.6 parts monosodium glutamate, 1.1 parts edible salt, 0.6 parts potassium sorbate, 0.2 parts β-carotene, 40 parts soybean oil, 0.25 parts xanthan gum, and 1.25 parts brewed vinegar. Example 3

[0043] This embodiment is largely the same as Embodiment 1, except that the salted egg yolk salad dressing provided includes the following components by weight: 11 parts water, 4 parts maltitol, 4 parts heat-resistant egg yolk liquid, 37 parts salted egg yolk, 0.6 parts monosodium glutamate, 1.1 parts edible salt, 0.5 parts potassium sorbate, 0.3 parts β-carotene, 40 parts soybean oil, 0.25 parts xanthan gum, and 1.25 parts brewed vinegar.

[0044] After public tasting and evaluation, the egg yolk salad dressing prepared in Example 1 scored better than that in Examples 2 and 3 in terms of appearance, texture, and taste. Compared to Examples 2 and 3, the egg yolk salad dressing prepared in Example 1 is the best and more in line with public taste. Example 4

[0045] Please refer to Figures 1-5This embodiment provides an emulsification device for preparing the salted egg yolk salad dressing of Examples 1-3, including a frame 1, an emulsification tank 2, an aqueous premixing tank 3, and an oil premixing tank 4. The emulsification tank 2 and the aqueous premixing tank 3 are mounted on the frame 1. The bottom of the emulsification tank 2 is provided with a sauce outlet 21, and a sauce outlet valve 22 is installed at the sauce outlet 21. The bottom of the aqueous premixing tank 3 is provided with an aqueous discharge pipe 31, the other end of which is connected to the emulsification tank 2. An aqueous discharge valve 32 is installed on the aqueous discharge pipe 31. The oil premixing tank 4 is rotatably mounted on the emulsification tank 2 via a first turntable bearing 23 and is coaxially arranged with the emulsification tank 2. The oil premixing tank 4 is divided into a premixing section 41, a diameter expansion and feeding section 42, and an emulsification and stirring section from top to bottom. Section 43, the upper part of the premixing section 41 is located above the emulsifying tank 2. An oil phase feed pipe 44 is installed on the premixing section 41. The emulsifying section 43 is located inside the emulsifying tank 2. The inner diameters of the premixing section 41 and the emulsifying section 43 are the same and smaller than the inner diameter of the expanding discharge section 42. A sealing piston 45 is installed inside the emulsifying tank 2. The sealing piston 45 can be slidably sealed to the premixing section 41 and the emulsifying section 43. An oil phase stirring shaft 46 is rotatably mounted on the upper end of the sealing piston 45 via a first bearing. This prevents the sealing piston 45 from rotating when the oil phase stirring shaft 46 rotates. An oil phase stirring blade 47 is installed on the oil phase stirring shaft 46. The upper end of the oil phase stirring shaft 46 extends out of the emulsifying tank 2. A high-pressure discharge pipe 48 and... The suction pipe 49 and the high-pressure discharge pipe 48 are radially installed at the lower part of the emulsifying and mixing section 43 and close to its bottom end. A first one-way valve 481 and a nozzle 482 are installed on the high-pressure discharge pipe 48. The suction pipe 49 is installed on the bottom end face of the emulsifying and mixing section 43, and a second one-way valve 491 is installed on it. Through the up-and-down movement of the sealing piston 45, the suction pipe 49 can draw in the sediment from the bottom of the emulsifying tank 2, and the drawn-in material is sprayed out at high speed through the high-pressure discharge pipe 48, reducing sedimentation and improving the mixing and blending effect. Installing the first one-way valve 481 on the high-pressure discharge pipe 48 allows it to form a one-way passage for only outward discharge, and installing the second one-way valve 491 on the suction pipe 49 allows it to form a one-way passage for only outward discharge. The unidirectional feeding passage allows the sealed piston 45 to discharge through the high-pressure discharge pipe 48 when it descends in the emulsification and stirring section 43, and to feed through the suction pipe 49 when it rises in the emulsification and stirring section 43, drawing in the sediment from the bottom of the emulsification tank 2. The emulsification tank 2 is equipped with an emulsification stirring mechanism 5, which includes at least two emulsification stirring shafts 51. The emulsification stirring shafts 51 are rotatably mounted on the emulsification tank 2 via a second bearing. The axis of the emulsification stirring shafts 51 is parallel to the axis of the oil phase premixing tank 4. The emulsification stirring shafts 51 are equipped with gears 52 and multiple side emulsification stirring blades 53. The oil phase premixing tank 4 is equipped with a first gear ring 54 and multiple central emulsification stirring blades 55. The gears 52 are meshed with the first gear ring 54.It also includes a first power mechanism 6 and a second power mechanism 7. The first power mechanism 6 is connected to the oil phase stirring shaft 46 to drive the oil phase stirring shaft 46 to lift and rotate. The second power mechanism 7 is driven by one of the emulsifying stirring shafts 51 to drive the emulsifying stirring shaft 51 to rotate. The second power mechanism 7 is a rotary motor, which is mounted on the emulsifying tank 2 via a bracket. The output end of the rotary motor is driven by one of the emulsifying stirring shafts 51 via a coupling, or it can be driven by one of the emulsifying stirring shafts 51 via a belt drive assembly.

[0046] To facilitate the rotation and lifting of the oil phase stirring shaft 46, the first power mechanism 6 includes a mounting base 61, a servo hydraulic cylinder 62, a lifting frame 63, a motor base 64, and an oil phase stirring motor 65. The mounting base 61 is fixedly mounted on the outer wall of the emulsification tank 2, the servo hydraulic cylinder 62 is fixedly mounted on the mounting base 61, the lifting frame 63 is fixedly mounted on the telescopic end of the servo hydraulic cylinder 62, the motor base 64 is fixedly mounted on the lifting frame 63, and the oil phase stirring motor 65 is fixedly mounted on the motor base 64. The output end of the oil phase stirring motor 65 is connected to the oil phase stirring shaft 46 via a transmission connection. The oil phase stirring shaft 46 is rotatably mounted on the lifting frame 63 via a third bearing. In other embodiments, the servo hydraulic cylinder 62 can also be replaced with a servo electric cylinder, servo pneumatic cylinder, or other linear actuator with controllable stroke.

[0047] To improve the mixing effect, the central emulsifying mixing blade 55 and the side emulsifying mixing blades 53 are arranged at intervals in the vertical direction. This allows for thorough mixing of the materials, improving the quality of mixing and thus enhancing the emulsification quality.

[0048] To facilitate the intake of sediment at different locations at the bottom of the emulsifying tank 2, the extraction pipe 49 includes a vertical extraction pipe and a bent extraction pipe. The axis of the vertical extraction pipe is parallel to the axis of the emulsifying tank 2, and the bent extraction pipe has a bent section parallel to the bottom end face of the emulsifying tank 2, with multiple extraction ports 492 on the bent section. During stirring, the bent extraction pipe also rotates together with the oil phase premixing tank 4 to agitate the material at the bottom of the emulsifying tank 2, improving the stirring effect.

[0049] To facilitate the stirring of the raw materials in the aqueous premixing tank 3, an aqueous stirring mechanism 8 is also provided. The aqueous stirring mechanism 8 includes an aqueous stirring shaft 81 and aqueous stirring blades 82. The aqueous stirring shaft 81 is rotatably mounted at the bottom of the aqueous premixing tank 3 through a sealed bearing. Multiple aqueous stirring blades 82 are mounted on the aqueous stirring shaft 81. The lower end of the aqueous stirring shaft 81 extends out of the bottom of the aqueous premixing tank 3 and is equipped with a first pulley 83. The upper end of one of the emulsifying stirring shafts 51 extends out of the emulsifying tank 2 and is equipped with a second pulley 84. The first pulley 83 and the second pulley 84 are connected by a transmission belt 85.

[0050] To prevent material from adhering to the inner wall of the emulsifying tank 2, a scraping mechanism 9 is also provided. The scraping mechanism 9 includes a fixed ring disc 91, a second rotating disc bearing 92, and a rotating ring disc 93. The fixed ring disc 91 is fixedly installed on the inner wall of the emulsifying tank 2. The outer ring of the second rotating disc bearing 92 is fixedly installed on the fixed ring disc 91, and a second gear ring 94 is fixedly installed on the inner ring of the second rotating disc bearing 92. The rotating ring disc 93 is located below the fixed ring disc 91 and is fixedly connected to the inner ring of the second rotating disc bearing 92 via a connecting rod 95. A scraper 96 is fixed to the lower end of the rotating ring disc 93, which contacts and engages with the inner wall of the emulsifying tank 2. The scraper 96 can scrape off the material adhering to the inner wall of the emulsifying tank 2, allowing it to be fully stirred and improving the emulsification effect.

[0051] To reduce material splashing upwards and contacting the first gear ring 54 of gear 52, a baffle can be fixed in the premixing section 41 near the rotating ring disk 93 to block most of the splashed material.

[0052] The working principle of this implementation scheme is as follows: Open the top cover of the aqueous phase premixing tank 3, add water to the aqueous phase premixing tank 3, and then add maltitol, heat-resistant egg yolk liquid, monosodium glutamate, edible salt, potassium sorbate, β-carotene, brewed vinegar, and salted egg yolk paste to the aqueous phase premixing tank 3; add xanthan gum and soybean oil to the oil phase premixing tank 4 through the oil phase feed pipe 44; start the oil phase stirring motor 65 and the second power mechanism 7. The oil phase stirring motor 65 drives the oil phase stirring shaft 46 and the oil phase stirring blades 47 to rotate. The sealed piston 45 is in the premixing section 41, which can prevent xanthan gum and soybean oil from flowing down. The oil phase stirring blades 47 stir the xanthan gum and soybean oil, making... Xanthan gum is dispersed evenly to obtain an oil phase mixture. The second power mechanism 7 drives the side emulsifying stirring shaft 51 to rotate. The side emulsifying stirring shaft 51 drives the first gear ring 54 and the oil phase premixing tank 4 to rotate through the gear 52. The first gear ring 54 drives the gears 52 of other side emulsifying stirring shafts 51 to rotate, thereby making all side emulsifying stirring shafts 51 rotate synchronously. The side emulsifying stirring shaft 51 drives the first gear ring 83 and the aqueous phase stirring shaft 81 to rotate through the second pulley 84 and the transmission belt 85. The aqueous phase stirring shaft 81 drives the aqueous phase stirring blades 82 to rotate, stirring the raw materials in the aqueous phase premixing tank 3, dissolving the raw materials, and obtaining an aqueous phase mixture.

[0053] Then, the aqueous phase discharge valve 32 is opened, and the aqueous phase mixture in the aqueous phase premixing tank 3 enters the emulsification tank 2 through the aqueous phase discharge pipe 31. Inside the emulsification tank 2, the side emulsification stirring blades 53 and the central emulsification stirring blades 55 continuously stir the aqueous phase mixture. After all the aqueous phase mixture has entered the emulsification tank 2, the servo hydraulic cylinder 62 is controlled to retract a certain displacement. The servo hydraulic cylinder 62 drives the lifting frame 63, the oil phase stirring shaft 46, and the sealing piston 45 to descend until the sealing piston 45 descends to the expanded diameter feeding section 42. Since the inner diameter of the expanded diameter feeding section 42 is larger than the diameter of the sealing piston 45, therefore... The oil phase mixture flows downward into the emulsification and stirring section 43. Then, the servo hydraulic cylinder 62 contracts again, and the sealing piston 45 continues to descend and squeeze the oil phase mixture in the emulsification and stirring section 43. This causes the oil phase mixture to be pressurized and sprayed out at high speed from the high-pressure discharge pipe 48 and the nozzle 482 at a large initial velocity. Meanwhile, the oil phase premixing tank 4 is in a rotating state. The sprayed oil phase mixture not only has a large initial velocity, but is also dispersed into smaller droplets under the action of centrifugal force. These droplets are evenly sprayed to different positions, come into contact with and collide with the water phase mixture, and quickly blend together, thereby improving emulsification efficiency and emulsification quality.

[0054] When the servo hydraulic cylinder 62 drives the lifting frame 63 and the sealing piston 45 to descend to the lowest position, such as Figure 2 As shown, the sealing piston 45 is located near the high-pressure discharge pipe 48 and abuts against the inner wall of the bottom end of the oil phase premix tank 4. Then, the servo hydraulic cylinder 62 drives the sealing piston 45 to enter the reciprocating lifting and lowering anti-sedimentation suction and spray mode. The servo hydraulic cylinder 62 drives the sealing piston 45 to rise in the emulsification stirring section 43, so that a negative pressure is generated at the bottom of the sealing piston 45. The sediment and mixture at the bottom of the emulsification tank 2 are sucked into the emulsification stirring section 43 through the suction pipe 49. The bent suction pipe rotates together with the oil phase premix tank 4. The sediment and mixture at different positions at the bottom of the emulsification tank 2 can be sucked into the emulsification stirring section 43 through the suction port 492. Then, the servo hydraulic cylinder 62 drives the sealing piston 45 to descend to the lowest point, and the sediment and mixture are squeezed out. The sediment and mixture are sprayed out at high speed from the nozzle 482 and collide, contact and merge with the mixture at a higher position, thereby improving the emulsification effect.

[0055] During emulsification, gear 52 meshes with the second gear ring 94, driving the inner ring of the second rotary bearing 92 to rotate. The inner ring of the second rotary bearing 92 drives the rotating ring disc 93 and scraper 96 to rotate via the connecting rod 95. The scraper 96 scrapes away the material adhering to the inner wall of the emulsification tank 2, ensuring that the material is fully stirred and improving the emulsification effect. Furthermore, during the emulsification process, since the aqueous phase stirring shaft 81 rotates continuously, and the premixing time of the raw materials in the aqueous phase premixing tank 3 is longer than the premixing time in the oil phase premixing tank 4, the next batch of raw materials can be added to the aqueous phase stirring tank in advance for premixing. This reduces the premixing time when performing the next batch of emulsification, thereby improving the emulsification efficiency.

[0056] After emulsification is complete, open the sauce outlet valve 22 at the bottom of the emulsification tank 2 to discharge the prepared salted egg yolk salad dressing from the sauce outlet 21.

[0057] The above technical solutions only embody the preferred technical solutions of the present invention. Any modifications that may be made by those skilled in the art to certain parts thereof embody the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. An emulsifying apparatus for preparing salted egg yolk salad dressing, wherein the raw materials of the salted egg yolk salad dressing are formulated by weight as follows: 10-20 parts water, 3-5 parts maltitol, 2-5 parts heat-resistant egg yolk liquid, 30-40 parts salted egg yolk, 0.4-0.8 parts monosodium glutamate, 1-2 parts edible salt, 0.04-0.08 parts potassium sorbate, 0.1-0.3 parts β-carotene, 35-45 parts soybean oil, and xanthan gum. 0.2-0.3 parts, brewed vinegar 1-1.5 parts; the emulsification device includes a frame, an emulsification tank, an aqueous phase premixing tank, and an oil phase premixing tank; the emulsification tank and the aqueous phase premixing tank are mounted on the frame, the bottom of the emulsification tank is provided with a sauce outlet, and a sauce outlet valve is installed at the sauce outlet; the bottom of the aqueous phase premixing tank is provided with an aqueous phase outlet pipe, the other end of which is connected to the emulsification tank, and an aqueous phase outlet valve is installed on the aqueous phase outlet pipe, characterized in that, The oil phase premixing tank is rotatably mounted on the emulsifying tank via a first rotary bearing and is coaxially arranged with the emulsifying tank. The oil phase premixing tank is divided into a premixing section, an expanding discharge section, and an emulsifying section from top to bottom. The upper part of the premixing section is located above the emulsifying tank, and an oil phase feed pipe is installed on the premixing section. The emulsifying section is located inside the emulsifying tank. The inner diameters of the premixing section and the emulsifying section are the same and smaller than the inner diameter of the expanding discharge section. A sealing piston is installed inside the emulsifying tank, and the sealing piston is slidably sealed to the premixing section and the emulsifying section. An oil phase stirring shaft is rotatably mounted on the upper end of the sealing piston via the first bearing. Oil phase stirring blades are installed on the oil phase stirring shaft, and the upper end of the oil phase stirring shaft extends out of the emulsifying tank. A high-pressure discharge pipe and a suction pipe are installed on the emulsifying section. The high-pressure discharge pipe is radially installed at the lower part of the emulsifying section and close to the emulsifying tank. At the bottom of the mixing section, a first one-way valve and a nozzle are installed on the high-pressure discharge pipe, and a suction pipe is installed on the bottom surface of the emulsifying mixing section, with a second one-way valve installed on the suction pipe. An emulsifying mixing mechanism is installed inside the emulsifying tank, comprising at least two emulsifying mixing shafts. The emulsifying mixing shafts are rotatably mounted on the emulsifying tank via second bearings. The axis of the emulsifying mixing shafts is parallel to the axis of the oil phase premixing tank. Gears and multiple side emulsifying mixing blades are installed on the emulsifying mixing shafts, and a first gear ring and multiple central emulsifying mixing blades are installed on the oil phase premixing tank. The gears mesh with the first gear ring. The system also includes a first power mechanism and a second power mechanism. The first power mechanism is connected to the oil phase mixing shaft to drive its lifting and rotation, and the second power mechanism is connected to one of the emulsifying mixing shafts to drive its rotation.

2. The emulsification device of claim 1, wherein, The first power mechanism includes a mounting base, a servo hydraulic cylinder, a lifting frame, a motor base, and an oil phase stirring motor. The mounting base is fixedly installed on the outer wall of the emulsification tank, the servo hydraulic cylinder is fixedly installed on the mounting base, the lifting frame is fixedly installed on the telescopic end of the servo hydraulic cylinder, the motor base is fixedly installed on the lifting frame, the oil phase stirring motor is fixedly installed on the motor base, the output end of the oil phase stirring motor is connected to the oil phase stirring shaft, and the oil phase stirring shaft is rotatably installed on the lifting frame through a third bearing.

3. The emulsification device of claim 1, wherein, The central emulsifying agitator blade and the side emulsifying agitator blades are spaced apart in the vertical direction.

4. The emulsification device of claim 1, wherein, The extraction pipe includes a vertical extraction pipe and a bent extraction pipe. The axis of the vertical extraction pipe is parallel to the axis of the emulsifying tank. The bent extraction pipe has a bent section parallel to the bottom end face of the emulsifying tank, and multiple extraction ports are opened on the bent section.

5. An emulsifying device according to any one of claims 1-4, characterized in that It also includes an aqueous phase stirring mechanism, which includes an aqueous phase stirring shaft and aqueous phase stirring blades. The aqueous phase stirring shaft is rotatably mounted at the bottom of the aqueous phase premixing tank via a sealed bearing. Multiple aqueous phase stirring blades are mounted on the aqueous phase stirring shaft. The lower end of the aqueous phase stirring shaft extends out of the bottom of the aqueous phase premixing tank and is equipped with a first pulley. The upper end of one of the emulsifying stirring shafts extends out of the emulsifying tank and is equipped with a second pulley. The first pulley and the second pulley are connected by a transmission belt.

6. The emulsification device of claim 5, wherein, It also includes a wall scraping mechanism, which includes a fixed ring disc, a second rotating disc bearing, and a rotating ring disc. The fixed ring disc is fixedly installed on the inner wall of the emulsifying tank. The outer ring of the second rotating disc bearing is fixedly installed on the fixed ring disc. A second gear ring is fixedly installed on the inner ring of the second rotating disc bearing. The rotating ring disc is located below the fixed ring disc and is fixedly connected to the inner ring of the second rotating disc bearing through a connecting rod. A scraper that contacts and engages with the inner wall of the emulsifying tank is fixed at the lower end of the rotating ring disc.

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