A fermentation device for dairy product production

Abstract

The present invention relates to the technical field of dairy fermentation, and in particular to a fermentation device for dairy production, which includes a tank body, a stirring rod and a driving assembly; two groups of symmetrically arranged blades, the blades are hollow inside and have a spray hole at the bottom, and are sequentially connected to two auxiliary tanks of the two groups of blades, the side walls of the auxiliary tanks are provided with a feed channel and a hatch, and the side walls of the feed channel abut against the inner wall of the tank body; a rotating shaft rotatably arranged in the auxiliary tank, a fermentation liquid feeding channel is provided between the top wall of the rotating shaft and the side wall of the top, an auger blade is fixedly provided on the side wall of the rotating shaft, and a sliding block is vertically slidably inserted in the auxiliary tank, and a spiral groove matching the auger blade is provided on the sliding block. The present invention can improve the uniformity of the material in the tank body, is conducive to uniform fermentation, improves the fermentation effect, and can crush the lumps attached to the inner wall of the tank body, further improving the uniformity of the material.

Description

Technical Field

[0001] The invention relates to the technical field of dairy product fermentation, and in particular to a fermentation device for dairy product production. Background Art

[0002] Dairy fermentation equipment is an indispensable key tool in the dairy fermentation process. Its main function is to provide a suitable growth environment for microorganisms such as lactic acid bacteria.

[0003] In the existing dairy fermentation tank, the fermentation liquid is directly poured into the fermentation tank when the starter is added, and this pouring method causes the fermentation liquid and the milk to be mixed unevenly. In order to solve this problem, the existing equipment stirs the mixture in the fermentation tank.

[0004] Referring to the Chinese patent with authorization announcement number CN112155055B and announcement date January 1, 2021, entitled "A lactic acid bacteria beverage fermentation tank for avoiding fermentation and agglomeration", a stirring rod and a crushing rod are provided in the tank body, and a crushing blade is provided on the crushing rod. The stirring rod stirs the material inside the tank body, and the crushing rod separates and crushes the internal material.

[0005] With respect to the above-mentioned related technologies, the existing stirring equipment is usually installed at the center of the fermentation tank, which makes it difficult for the dairy products on the inner wall of the fermentation tank to fully participate in the stirring work, which will cause the fermentation liquid to be unevenly distributed in the tank, resulting in different fermentation processes in various areas of the fermentation tank, affecting the overall fermentation time and fermentation effect, and will also cause the dairy products located on the inner wall of the fermentation tank to be more prone to caking than the dairy products in the center of the fermentation tank; and the breaking rod and breaking blade in the above-mentioned device are difficult to handle the lumps attached to the inner wall of the fermentation tank. Summary of the invention

[0006] In view of this, the present invention provides a fermentation device for dairy product production, aiming to solve the technical problems in the prior art of uneven mixing of materials in a fermentation tank and the need to treat lumps attached to the inner wall of the fermentation tank.

[0007] In order to solve the above technical problems, the present invention provides a fermentation device for dairy product production, which adopts the following technical solution: a fermentation device for dairy product production, comprising a tank body, a stirring rod and a driving assembly for controlling the rotation of the stirring rod;

[0008] Two groups of blades 1 are symmetrically arranged and connected to the side wall of the stirring rod. The blades 1 are hollow inside and have injection holes at the bottom. They are connected to the two auxiliary tanks of the two groups of blades 1 in sequence. The side wall of the auxiliary tank is provided with a feed channel and a hatch. The side wall of the feed channel abuts against the inner wall of the tank body, and the seal controls the movement of the hatch.

[0009] A rotating shaft arranged in the auxiliary tank is rotated, a fermentation liquid feeding channel is provided between the top wall of the rotating shaft and the side wall of the top, an auger blade is fixedly sleeved on the side wall of the rotating shaft, a gap is left between the auger blade and the inner wall of the auxiliary tank, a sliding block is vertically slidably inserted in the auxiliary tank, a spiral groove matching the auger blade is provided on the sliding block, and the driving component controls the rotation of the rotating shaft;

[0010] Avoidance parts are symmetrically provided on the top and bottom of the auxiliary tank, and the avoidance parts include a baffle, a compression spring and a one-way valve. The baffle is slidably inserted into the inner wall of the auxiliary tank, and the top compression spring is arranged between the top of the inner wall of the auxiliary tank and the top surface of the baffle. The top one-way valve is located above the top baffle, and the one-way valve allows liquid to flow from the inside of the auxiliary tank to the outside.

[0011] By adopting the above technical solution, when the stirring rod rotates, the auxiliary tank disturbs the material on the inner wall of the tank body, thereby improving the stirring effect on the material in the tank body and improving the uniformity of the material. The fermentation liquid is added to the auxiliary tank through the fermentation liquid feeding channel, the rotating shaft and the auger blades rotate, and the fermentation liquid and the material in the auxiliary tank are premixed. After the premixing is completed, the rotation direction of the rotating shaft is changed. As the auger blades rotate, the sliding block moves upward, and the premixed material in the auxiliary tank moves into the tank body through the injection hole on blade one, which helps to evenly distribute the fermentation liquid. During the rotation of the auxiliary tank, the lumps attached to the inner wall of the tank body are scraped off, and the lumps enter the auxiliary tank and are broken up by the auger blades. The setting of the avoidance member is used to ensure the smooth operation of the device.

[0012] Optionally, the injection hole is inclined downward.

[0013] By adopting the above technical solution, the material sprayed from the spray hole has an impact effect on the material in the tank body, which helps to mix the material in the tank body evenly.

[0014] Optionally, the driving assembly includes a stirring driving member for controlling the rotation of the stirring rod and a rotating driving member for controlling the rotation of the rotating shaft.

[0015] By adopting the above technical solution, the two driving members respectively control the rotation of the stirring rod and the rotating shaft, which makes it easy to meet the rotation requirements of the device for the stirring rod and the rotating shaft and improves the flexibility of the device.

[0016] Optionally, the stirring drive component includes a stirring motor, which is arranged on the top of the tank body, and an output end of the stirring motor extends downward into the interior of the tank body and is connected to the top of the stirring rod.

[0017] By adopting the above technical solution, it is convenient to control the rotation direction and rotation speed of the stirring rod.

[0018] Optionally, the rotating drive component includes a rotating motor and a transmission shaft. The rotating motor is arranged on the top of the tank body, and the transmission shaft is passed through the top of the tank body in a rotating connection manner. The output end of the rotating motor and the transmission shaft are driven by a belt, and the transmission shaft and the rotating shaft are driven by a belt.

[0019] By adopting the above technical solution, belt transmission is beneficial to the rational layout of the structure.

[0020] Optionally, a partition plate is rotatably connected inside the tank body, the partition plate is fixedly sleeved on the top of the stirring rod, the bottom surface of the partition plate is fixedly connected to the top surface of the auxiliary tank, and the rotating shaft is rotatably connected to the partition plate.

[0021] By adopting the above technical solution and setting a partition plate, it is beneficial to improve the stability of the device and facilitate the reasonable layout of the structure.

[0022] Optionally, a rotating ring located above the partition plate is provided in the tank body, the top wall inside the tank body is connected to a convex ring, the bottom surface of the convex ring is provided with a through groove for the rotating ring to rotate, the top of the tank body is connected to a feed pipe 1, feed pipe 1 is connected to the top of the through groove, and the top of the rotating shaft is connected to a feed pipe 2, and feed pipe 2 is inserted into the rotating ring in a rotatable connection.

[0023] By adopting the above technical solution, it is convenient to add the fermentation liquid into the auxiliary tank. The fermentation liquid enters the through groove through the feed pipe 1, and then flows along the top surface of the rotating ring to the feed pipe 2, thereby entering the auxiliary tank.

[0024] Optionally, the top surface of the rotating ring is tilted, and the two feed pipes are located at the bottom point of the top surface of the rotating ring.

[0025] By adopting the above technical solution, the inclined setting of the top surface of the rotating ring is conducive to the fermentation liquid flowing into the interior of the auxiliary tank.

[0026] Optionally, the sealing component includes an air inlet pipe 1 arranged on the side of the tank body, and two concentrically arranged annular air grooves 1 and 2 are provided on the side wall of the partition plate. Air groove 1 is connected to the air inlet pipe, and air groove 1 and air groove 2 are connected by multiple through grooves extending radially along the partition plate. A pressurized chamber is provided inside the auxiliary tank, and air groove 2 and the pressurized chamber are connected by air inlet pipe 2.

[0027] By adopting the above technical solution, since the auxiliary tank rotates around the central axis of the stirring rod, the air groove one and the air groove two are provided, which facilitates the control of the opening or closing of the hatch.

[0028] In summary, the present invention includes the following beneficial technical effects:

[0029] 1. The setting of the auxiliary tank, auger blades, sliding blocks and hatches can not only disturb the material on the inner wall of the tank, which is conducive to uniform mixing of the materials in the tank; but also can premix the fermentation liquid and the milk in the auxiliary tank. After premixing, the fermentation liquid is gradually discharged into the tank from bottom to top, which is conducive to uniform mixing of the fermentation liquid and the milk in the tank; and can scrape off the lumps attached to the inner wall of the tank. The auger blades, the inner wall of the auxiliary tank and the sliding blocks cooperate to break the lumps, and collect and process the lumps, which is conducive to uniform mixing of the materials in the tank and improving the mixing effect of the device. The auger blades can evenly mix the materials in the vertical direction, which is conducive to fermentation.

[0030] 2. The material sprayed out from the spray hole can disturb the flow of the material in the tank, which is conducive to uniform mixing of the material.

[0031] 3. The two driving parts control the rotation of the stirring rod and the rotating shaft respectively, which is convenient for meeting the rotation requirements of the device for the stirring rod and the rotating shaft, improving the flexibility of the device, and facilitating a reasonable structural layout.

[0032] 4. The arrangement of the rotating ring, the convex ring, the feed pipe 1, the feed pipe 2, the air groove 1 and the air groove 2 enables the device to add fermentation liquid into the auxiliary tank while the auxiliary tank rotates around the axis of the stirring rod, and facilitates the control of the movement of the hatch. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0034] Figure 2 A schematic cross-sectional view of the overall structure in an embodiment of the present invention;

[0035] Figure 3 It is a schematic cross-sectional view of the auxiliary tank along a vertical plane in an embodiment of the present invention;

[0036] Figure 4 for Figure 2 A partial enlarged schematic diagram of part A;

[0037] Figure 5 It is a schematic cross-sectional view of the auxiliary tank along the horizontal plane according to an embodiment of the present invention.

[0038] Explanation of the reference numerals: 1. tank body; 11. milk feed pipe; 12. material discharge pipe; 2. stirring element; 21. stirring rod; 22. blade one; 23. blade two; 24. injection hole; 3. auxiliary tank; 4. auxiliary component; 41. rotating shaft; 42. fermentation liquid feeding channel; 43. auger blade; 44. sliding block; 45. spiral groove; 46. baffle; 47. compression spring; 48. one-way valve; 5. hatch; 51. feeding channel; 6. driving component; 61. stirring motor; 62. rotating motor; 7. sealing element; 71. air inlet pipe one; 72. air groove one; 73. air groove two; 74. pressurizing chamber; 75. air inlet pipe two; 8. partition plate; 9. fermentation liquid feeding element; 91. rotating ring; 92. convex ring; 93. feed pipe one; 94. feed pipe two. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0040] The following is combined with Figure 1 -Attached Figure 5 The present invention is described in further detail.

[0041] The embodiment of the present invention discloses a fermentation device for producing dairy products. Figures 1 to 5 A fermentation device for dairy product production includes a tank body 1, a stirring member 2, an auxiliary tank 3, an auxiliary component 4, a hatch 5, a driving component 6 and a sealing member 7. Milk and fermentation liquid are stirred and fermented in the tank body 1, and the stirring member 2 stirs the materials in the tank body 1 to make the materials mixed evenly; the setting of the auxiliary tank 3 can not only improve the stirring effect of the materials on the inner wall of the tank body 1, which is conducive to the uniform mixing of the materials, but also enable the fermentation liquid to be premixed with the milk in the auxiliary tank 3, and after premixing, the fermentation liquid is discharged to different positions in the tank body 1 through the auxiliary component 4, further improving the uniformity of the materials in the device; the hatch 5 is set to scrape the lumps on the inner wall of the tank body 1 into the auxiliary tank 3, and the auxiliary component 4 can crush the lumps; the driving component 6 is used to control the rotation of the stirring member 2 and the auxiliary component 4, and the sealing member 7 is used to control the movement of the hatch 5.

[0042] Reference Figure 1 and Figure 2 The tank body 1 is hollow inside, and the top of the side wall of the tank body 1 is connected to a milk feeding pipe 11, and the fermentation liquid and milk are mixed and fermented inside the tank body 1. The bottom of the tank body 1 is connected to a material discharge pipe 12, and the fermented material is discharged through the material discharge pipe 12.

[0043] Reference Figure 2 The stirring member 2 is used to stir the material in the tank body 1. The stirring member 2 includes a stirring rod 21, two groups of blades 1 22 and two groups of blades 2 23. The stirring rod 21 is vertically arranged in the tank body 1, and the driving component 6 controls the stirring rod 21 to rotate the stirring rod 21 around its own axis. Each group of blades 1 22 is composed of a plurality of vertically arranged blades 1 22, and each group of blades 2 23 is composed of a plurality of vertically arranged blades 2 23. The two groups of blades 1 22 and the two groups of blades 2 23 are staggered in the circumferential direction of the stirring rod 21. When the stirring rod 21 rotates, the blades 1 22 and the blades 2 23 push the material in the tank body 1 to move, so that the material is mixed evenly.

[0044] Reference Figure 2 The auxiliary tank 3 is provided with two blades 22 connected in sequence. The outer wall of the auxiliary tank 3 is connected to the inner wall of the tank body 1. As the stirring rod 21 rotates, the auxiliary tank 3 disturbs the material at the inner wall of the tank body 1, which is beneficial to improve the uniformity of the material inside the tank body 1.

[0045] Reference Figure 2 and Figure 3 The auxiliary tank 3 is hollow inside, the blade 1 22 is hollow inside, the auxiliary tank 3 is connected to the inside of the blade, and a downwardly inclined injection hole 24 is provided at the bottom of the blade 1 22. The fermentation liquid is premixed with the milk in the auxiliary tank 3 first, and the mixed materials are discharged from the injection hole 24 into the tank body 1 through the auxiliary tank 3 and the blade 1 22, so that the fermentation liquid is distributed at multiple blades 1 22, which helps to mix the fermentation liquid and the milk in the tank body 1 evenly.

[0046] Reference Figure 2 and Figure 3 The auxiliary component 4 includes a premixer, a pusher, and an avoider. The premixer is used to mix the milk and fermentation liquid in the auxiliary tank 3 evenly, the pusher is used to control the movement of the material in the auxiliary tank 3 so that the material can enter the tank body 1 through the blade 22 and the injection hole 24, and the avoider is used to ensure the smooth operation of the device and improve the stability of the device.

[0047] Reference Figure 3 The premixing part includes a rotating shaft 41, a fermentation liquid feeding channel 42 and an auger blade 43.

[0048] The rotating shaft 41 is vertically arranged inside the auxiliary tank 3, and the top of the rotating shaft 41 is rotatably connected to the top of the auxiliary tank 3, and the rotating shaft 41 rotates around its own axis. The fermentation liquid feeding channel 42 is opened on the top wall of the rotating shaft 41 and the side wall of the top of the rotating shaft 41. The fermentation liquid flows along the fermentation liquid feeding channel 42 to the four sides of the rotating shaft 41 and mixes with the milk in the auxiliary tank 3.

[0049] The auger blade 43 is fixedly connected to the circumferential side wall of the rotating shaft 41, and the auger blade 43 extends along the axial direction of the rotating shaft 41. A gap is left between the blade edge of the auger blade 43 and the inner wall of the auxiliary tank 3 for the material in the auxiliary tank 3 to pass through. When the rotating shaft 41 rotates clockwise, the auger blade 43 can push the material in the auxiliary tank 3 to move downward, and when the rotating shaft 41 rotates counterclockwise, the auger blade 43 can push the material in the auxiliary tank 3 to move upward.

[0050] During premixing, the fermentation liquid enters the top of the internal cavity of the auxiliary tank 3 along the fermentation liquid feeding channel 42, and the fermentation liquid flows to the four sides of the rotating shaft 41. The rotating shaft 41 rotates, the auger blades 43 rotate, and the material near the central axis of the auxiliary tank 3 moves downward under the push of the auger blades 43, and the material near the inner wall of the auxiliary tank 3 moves upward along the interval. During the movement, the auger blades 43 have a turbulent effect on the material, so that the fermentation liquid and milk are mixed evenly, thereby improving the mixing effect of the device.

[0051] Reference Figure 3 The pusher includes a sliding block 44 and a spiral groove 45 .

[0052] The sliding block 44 is vertically slidably inserted into the inner wall of the auxiliary tank 3, and the side wall of the sliding block 44 is tightly attached to the inner wall of the auxiliary tank 3. The sliding block 44 is provided with a spiral groove 45, which matches the auger blade 43. When the auger blade 43 rotates, the auger blade 43 abuts against the inner wall of the spiral groove 45, which can push the sliding block 44 to reciprocate vertically. When the auger blade 43 rotates clockwise, the sliding block 44 moves upward, and when the auger blade 43 rotates counterclockwise, the sliding block 44 moves downward.

[0053] When the rotating shaft 41 rotates clockwise, the sliding block 44 is always located at the bottom of the auxiliary tank 3. After the premixing is completed, the direction of the rotating shaft 41 is changed, and the rotating shaft 41 rotates counterclockwise. The auger blade 43 has a pushing effect on the inner wall of the spiral groove 45, so that the sliding block 44 moves upward. The sliding block 44 is tightly attached to the inner wall of the auxiliary tank 3. The sliding block 44 makes the material in the auxiliary tank 3 move upward and is discharged through the injection hole 24 on the blade 1 22, completing the discharge of the premixed material.

[0054] Reference Figure 2 and Figure 3 The avoidance member is provided with two groups, and the two groups of avoidance members are symmetrically arranged and sequentially arranged at the top and bottom of the auxiliary tank 3. The avoidance member includes a baffle 46, a compression spring 47 and a one-way valve 48.

[0055] Taking the avoidance member at the top as an example, the baffle 46 is slidably inserted at the top of the auxiliary tank 3, and the side wall of the baffle 46 is tightly attached to the inner wall of the auxiliary tank 3. The compression spring 47 is arranged between the top wall of the internal cavity of the auxiliary tank 3 and the top surface of the baffle 46. The one-way valve 48 is arranged at the top of the auxiliary tank 3, and the one-way valve 48 allows the liquid to flow from the inside of the auxiliary tank 3 to the outside. The one-way valve 48 at the top is arranged above the baffle 46 at the top.

[0056] When the auger blade 43 continues to rotate clockwise, the sliding block 44 moves downward until it contacts the baffle 46, and the auger blade 43 continues to rotate, and the compression spring 47 is compressed until the sliding block 44 separates from the auger blade 43, so that the structure can operate reasonably. During the rotation of the auger blade 43, the wear caused by the mutual friction between the sliding block 44 and the auxiliary tank 3 is reduced. When the auger blade 43 changes to rotate counterclockwise, the compression spring 47 can also push the sliding block 44 upward, so that the auger blade 43 enters the spiral groove 45.

[0057] The one-way valve 48 is provided to help all the materials in the auxiliary tank 3 to be discharged. When the sliding block 44 moves upward, the materials enter the blade 1 22 and are discharged. The sliding block 44 continues to move upward, and the materials above the top blade 1 22 are difficult to be discharged through the blade 1 22, so that the sliding block 44 continues to move upward. Under the action of pressure, the compression spring 47 is compressed, the pressure plate moves upward, and the one-way valve 48 is exposed. The materials enter the tank body 1 through the one-way valve 48.

[0058] A feed channel 51 for material to pass through is provided on the side wall of the auxiliary tank 3. The feed channel 51 extends axially along the auxiliary tank 3. The vertical height of the feed channel 51 is consistent with the height of the inner cavity of the auxiliary tank 3. The hatch 5 is slidably plugged into the inner wall of the auxiliary tank 3. The hatch 5 is used to control the opening and closing of the feed channel 51. The hatch 5 is used to control the entry and exit of materials in the auxiliary tank 3. When the hatch 5 is opened, the milk in the tank body 1 enters the auxiliary tank 3. When the hatch 5 is opened, the materials in the auxiliary tank 3 are discharged together with the materials in the tank body 1.

[0059] The side wall of the feed channel 51 abuts against the inner wall of the tank body 1. The hatch 5 is opened, and as the auxiliary tank 3 rotates around the central axis of the tank body 1, the side wall of the feed channel 51 abuts against the inner wall of the auxiliary tank 3, so that the lumps on the inner wall of the tank body 1 are scraped off and enter the auxiliary tank 3. The auger blades 43 in the auxiliary tank 3 rotate, which has a crushing effect on the lumps, which helps to improve the uniformity of the material in the tank body 1. The lumps enter the auxiliary tank 3, the hatch 5 is closed, and the auger blades 43 continue to rotate counterclockwise. The blade edges of the auger blades 43 cooperate with the inner wall of the auxiliary tank 3 to crush the lumps. At the same time, the top of the auger blades 43 can cooperate with the bottom surface of the sliding block 44 to crush the lumps. It can improve the uniformity of the material in the tank body 1. The crushed lumps move to the outside of the auxiliary tank 3 along the feed channel 51, improving the uniformity of the material in the tank body 1. Here, the auger blade 43 rotates counterclockwise, which can transport the material at the bottom of the tank body 1 upward, further improving the uniformity of the material in the tank body 1.

[0060] Reference Figure 2 The driving assembly 6 is used to control the rotation of the stirring rod 21 and the rotating shaft 41. The driving assembly 6 includes a stirring driving member and a rotating driving member. The stirring driving member is used to control the stirring rod 21 to rotate around its own axis, and the rotating driving member is used to control the rotating shaft 41 to rotate around its own axis.

[0061] The stirring drive member includes a stirring motor 61, which is arranged at the top of the tank body 1, and the output end of the stirring motor 61 extends downward into the tank body 1 and is connected to the top of the stirring rod 21. When the stirring motor 61 is started, the stirring rod 21 can be driven to rotate, so that the rotation direction and rotation speed of the stirring rod 21 can be controlled.

[0062] The rotating drive member includes a rotating motor 62 and a transmission shaft. The rotating motor 62 is arranged on the top of the tank body 1. The transmission shaft is arranged on the top of the tank body 1 in a rotating connection. The output end of the rotating motor 62 and the transmission shaft are driven by a belt, and the transmission shaft and the rotating shaft 41 are driven by a belt. Belt transmission is conducive to a reasonable structural layout.

[0063] Further, refer to Figure 2 The tank body 1 is rotatably connected with a partition plate 8, which is fixedly sleeved on the top of the stirring rod 21, and the bottom surface of the partition plate 8 is fixedly connected to the top surface of the auxiliary tank 3, and the rotating shaft 41 is rotatably connected to the partition plate 8. This facilitates the installation of the structure and helps to improve the stability of the device.

[0064] Further, refer to Figure 4 The tank body 1 is provided with a fermentation liquid feeding member 9. The fermentation liquid feeding member 9 comprises a rotating ring 91, a convex ring 92, a feeding pipe 1 93 and a feeding pipe 2 94.

[0065] The rotating ring 91 is arranged above the partition plate 8, the convex ring 92 is fixedly connected to the top wall inside the tank body 1, the bottom surface of the convex ring 92 is provided with a through groove for the rotating ring 91 to rotate, the feed pipe 1 93 is connected to the top of the tank body 1, the feed pipe 1 93 is connected to the top of the through groove, the feed pipe 2 94 is connected to the fermentation liquid feeding channel 42 at the top of the rotating shaft 41, and the feed pipe 2 94 is rotatably connected to the rotating ring 91. It is convenient to add the fermentation liquid into the auxiliary tank 3. The fermentation liquid enters the through groove through the feed pipe 1 93, and then flows to the feed pipe 2 94 along the top surface of the rotating ring 91, thereby entering the auxiliary tank 3.

[0066] The top surface of the rotating ring 91 is inclined, and the two feed pipes 94 are located at the bottom point of the top surface of the rotating ring 91. The inclined setting is conducive to the fermentation liquid flowing into the inside of the auxiliary tank 3.

[0067] Reference Figure 4 and Figure 5 The sealing member 7 includes an air inlet pipe 1 71 , an air groove 1 72 , an air groove 2 73 , a pressurizing chamber 74 and an air inlet pipe 2 75 .

[0068] The air inlet pipe 1 71 is arranged at the side of the tank body 1, the air groove 1 72 and the air groove 2 73 are both annular, the air groove 1 72 is arranged at the circumferential side wall of the partition plate 8, the air inlet pipe 1 71 is connected to the air groove 1 72, the air groove 2 73 is arranged concentrically with the air groove 1 72, the air groove 1 72 and the air groove 2 73 are connected through a plurality of through grooves extending radially along the partition plate 8, the pressurizing chamber 74 is arranged inside the auxiliary tank 3, the hatch 5 is slidably plugged into the inner wall of the pressurizing chamber 74, and the air groove 2 73 and the pressurizing chamber 74 are connected through the air inlet pipe 2 75. Since the auxiliary tank 3 rotates around the central axis of the stirring rod 21, the air groove 1 72 and the air groove 2 73 are arranged to facilitate the control of the opening or closing of the hatch 5.

[0069] The implementation principle of a fermentation device for dairy product production according to an embodiment of the present invention is as follows:

[0070] The milk enters the tank body 1 through the milk feed pipe 11 on the top of the tank body 1, and the hatch 5 on the auxiliary tank 3 is opened, and the milk enters the auxiliary tank 3 through the feed channel 51 and fills the internal cavity of the auxiliary tank 3. The milk in the tank body 1 is filled to the top of the top blade 22, and the milk liquid level is located below the baffle 46 on the top.

[0071] Close the hatch 5 on the auxiliary tank 3, start the stirring motor 61, drive the stirring rod 21 to rotate, and the auxiliary tank 3, the rotating ring 91 and the stirring rod 21 rotate synchronously; start the rotating motor 62, and through the belt transmission, make the rotating shaft 41 rotate clockwise around its own axis, and the auger blade 43 pushes the sliding block 44, so that the sliding block 44 is located at the bottom of the auxiliary tank 3, and the sliding block 44 abuts against the baffle plate 46 at the bottom, and the compression spring 47 at the bottom is compressed, and the milk originally located below the bottom baffle plate 46 is discharged through the one-way valve 48 at the bottom.

[0072] The fermentation liquid enters the groove above the rotating ring 91 through the feed pipe 1 93, flows along the top surface of the rotating ring 91, enters the fermentation liquid feeding channel 42 at the top of the rotating shaft 41 through the feed pipe 2 94, and is discharged to the top of the internal cavity of the auxiliary tank 3. The auger blade 43 rotates continuously clockwise to push the material in the auxiliary tank 3 to move, the material close to the central axis of the auxiliary tank 3 is pushed downward, and the material close to the inner wall of the auxiliary tank 3 is squeezed and moved upward, so that the fermentation liquid in the auxiliary tank 3 is premixed with the milk.

[0073] After the premixing is completed, the direction of the output end of the rotating motor 62 is changed to make the rotating shaft 41 and the auger blade 43 rotate counterclockwise. The compression spring 47 at the bottom pushes the sliding block 44 to move upward, and the spiral groove 45 and the auger blade 43 cooperate. As the auger blade 43 rotates, the sliding block 44 is driven to move upward. During the movement of the sliding block 44, the premixed material in the auxiliary tank 3 is pushed upward. Under the push of the sliding block 44, the material enters the tank body 1 through the blade 1 22 and the injection hole 24, and the material is discharged from bottom to top in sequence, which helps to evenly distribute the fermentation liquid.

[0074] The sliding block 44 moves upward until it abuts against the top pressure plate, the top compression spring 47 is compressed, and the remaining material in the auxiliary tank 3 is discharged through the one-way valve 48 on the top of the auxiliary tank 3.

[0075] The blade 1 22 and the blade 2 23 continuously stir the material in the tank body 1 to make the material mixed evenly as much as possible. As the stirring rod 21 rotates, the auxiliary tank 3 disturbs the material at the inner wall of the tank body 1, which helps to evenly distribute the material in the tank body 1.

[0076] The hatch 5 on the auxiliary tank 3 is opened, and the side wall of the feed channel 51 abuts against the inner wall of the tank body 1, so that the lumps attached to the inner wall of the tank body 1 can be scraped off, and the lumps near the inner wall of the tank body 1 enter the auxiliary tank 3 through the feed channel 51. The hatch 5 is closed, and the auger blades 43 in the auxiliary tank 3 continue to rotate counterclockwise to transport the lumps at the bottom of the auxiliary tank 3 upward. During the transportation process, the auger blades 43, the inner wall of the auxiliary tank 3 and the bottom surface of the sliding block 44 cooperate to crush the lumps multiple times and make the materials in the auxiliary tank 3 evenly mixed. The hatch 5 is opened, and the crushed lumps in the auxiliary tank 3 can be discharged to the outside of the auxiliary tank 3 through the feed channel 51. The crushing effect of the lifting device on the lumps is improved, and the problem of poor material uniformity caused by the lumps attached to the inner wall of the tank body 1 in the past is improved.

[0077] After a period of crushing, the hatch 5 is opened, and the lumps on the inner wall of the tank body 1 are scraped off again, and the above operation is repeated to crush the lumps.

[0078] After the fermentation is completed, the hatch 5 is opened, and the material in the tank body 1 is discharged through the material discharge pipe 12 at the bottom of the tank body 1.

[0079] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A fermentation device for dairy product production, comprising a tank body (1), a stirring rod (21), and a driving assembly (6) for controlling the rotation of the stirring rod (21), characterized in that: Also includes: Two groups of blades (22) are symmetrically arranged and connected to the side walls of the stirring rod (21); the blades (22) are hollow inside and have injection holes (24) at the bottom, which are sequentially connected to the two auxiliary tanks (3) of the two groups of blades (22); the side walls of the auxiliary tanks (3) are provided with a feed channel (51) and a hatch (5); the side walls of the feed channel (51) are in contact with the inner wall of the tank body (1); and the sealing member (7) controls the movement of the hatch (5); A rotating shaft (41) is rotatably arranged in the auxiliary tank (3); a fermentation liquid feeding channel (42) is provided between the top wall of the rotating shaft (41) and the side wall at the top; an auger blade (43) is fixedly sleeved on the side wall of the rotating shaft (41); a gap is left between the auger blade (43) and the inner wall of the auxiliary tank (3); a sliding block (44) is vertically slidably inserted in the auxiliary tank (3); a spiral groove (45) matching the auger blade (43) is provided on the sliding block (44); and a driving component (6) controls the rotation of the rotating shaft (41); Avoidance members are symmetrically provided at the top and bottom of the auxiliary tank (3), and the avoidance members include a baffle (46), a compression spring (47) and a one-way valve (48). The baffle (46) is slidably plugged into the inner wall of the auxiliary tank (3), the top compression spring (47) is arranged between the top of the inner wall of the auxiliary tank (3) and the top surface of the baffle (46), and the top one-way valve (48) is located above the top baffle (46). The one-way valve (48) allows liquid to flow from the inside of the auxiliary tank (3) to the outside.

2. A fermentation device for dairy product production according to claim 1, characterized in that: The injection hole (24) is inclined downward.

3. A fermentation device for dairy product production according to claim 1, characterized in that: The driving assembly (6) comprises a stirring driving member for controlling the rotation of the stirring rod (21) and a rotating driving member for controlling the rotation of the rotating shaft (41).

4. A fermentation device for dairy product production according to claim 3, characterized in that: The stirring drive component comprises a stirring motor (61), which is arranged on the top of the tank body (1), and the output end of the stirring motor (61) extends downward into the interior of the tank body (1) and is connected to the top of the stirring rod (21).

5. A fermentation device for dairy product production according to claim 3, characterized in that: The rotary drive member comprises a rotary motor (62) and a transmission shaft, the rotary motor (62) being arranged at the top of the tank body (1), the transmission shaft being arranged through the top of the tank body (1) in a rotary connection, the output end of the rotary motor (62) and the transmission shaft being driven by a belt, and the transmission shaft and the rotary shaft (41) being driven by a belt.

6. A fermentation device for dairy product production according to claim 1, characterized in that: A partition plate (8) is rotatably connected inside the tank body (1); the partition plate (8) is fixedly sleeved on the top of the stirring rod (21); the bottom surface of the partition plate (8) is fixedly connected to the top surface of the auxiliary tank (3); and the rotating shaft (41) is rotatably connected to the partition plate (8).

7. A fermentation device for dairy product production according to claim 6, characterized in that: The tank body (1) is provided with a rotating ring (91) located above the partition plate (8); the top wall inside the tank body (1) is connected to a convex ring (92); the bottom surface of the convex ring (92) is provided with a through groove for the rotating ring (91) to rotate; the top of the tank body (1) is connected to a feed pipe 1 (93); the feed pipe 1 (93) is connected to the top of the through groove; the top of the rotating shaft (41) is connected to a feed pipe 2 (94); the feed pipe 2 (94) is rotatably connected and penetrates the rotating ring (91).

8. A fermentation device for dairy product production according to claim 7, characterized in that: The top surface of the rotating ring (91) is arranged to be inclined, and the two feed pipes (94) are located at the bottom point of the top surface of the rotating ring (91).

9. A fermentation device for dairy product production according to claim 1, characterized in that: The sealing member (7) comprises an air inlet pipe (71) arranged at the side of the tank body (1); a side wall of the partition plate (8) is provided with two concentrically arranged annular air grooves (72) and (73); the air groove (72) is communicated with the air inlet pipe (71); the air grooves (72) and (73) are communicated with each other via a plurality of through grooves extending radially along the partition plate (8); a pressurizing chamber (74) is provided inside the auxiliary tank (3); the air grooves (73) and (74) are communicated with each other via the air inlet pipe (75).

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