Controllable concentration device for yeast liquid purification and concentration method thereof

Abstract

The invention relates to the technical field of yeast production, in particular to a controllable concentration device for yeast liquid purification and a concentration method thereof. Comprising a concentration tank, a finished product discharging pipe is arranged on the central axis of the concentration tank, a concentration unit is arranged in the concentration tank in the vertical direction, the central axis of the concentration unit coincides with the finished product discharging pipe, and a main body of the concentration unit is of a spiral structure; a circulating pipe is arranged on one side of the concentration unit. According to the present invention, the rapid layered purification is achieved, and compared with the traditional tank stirring mode, the stirring heating dead angle does not appear, and the purified yeast concentrate does not re-mix due to stirring. Therefore, the concentration speed is accelerated, and the concentration efficiency is improved. And meanwhile, the yeast liquid flowing out of the bottom of the concentration unit can be conveyed back into the concentration unit by using the circulating pipe for repeated concentration, so that the controllable purpose is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of yeast production, and particularly relates to a controllable concentration device for purifying yeast liquid and a concentration method thereof. Background Art

[0002] During the yeast production process, the liquid yeast solution needs to be concentrated into a viscous yeast concentrate to facilitate subsequent drying and crystallization work.

[0003] After searching, the cited announcement number is CN221332760U, the announcement date is July 16, 2024, and the patent document is named a concentrating device for yeast protein purification, including a concentrating tank, the top of the concentrating tank is movably connected with a rotating shaft, the circumferential outer wall of the rotating shaft is located in the position array in the concentrating tank and is fixedly connected with a stirring shaft, the upper end of the stirring shaft is fixedly connected with a driven disk, the top of the concentrating tank is fixedly connected with a motor through a bracket, the output shaft of the motor is connected with an active disk, the bottom surface of the active disk is symmetrically fixedly connected with a slide bar, and the driven disk is movably sleeved on the circumferential outer wall of the two slide bars. The above embodiment can make the rotating shaft move vertically back and forth while rotating, and a plurality of stirring shafts and a plurality of mesh plates stir the raw materials in the concentrating tank horizontally and vertically, so as to achieve stirring in multiple different directions inside the box, and the stirring effect is good, which effectively guarantees the product quality.

[0004] However, the above embodiment still has the following defects: The above embodiment adopts the traditional stirring method, which is prone to stirring dead corners, and the purified yeast concentrate is redissolved in the yeast solution due to continuous stirring, and can only be taken out after all the yeast solution is completely concentrated, resulting in a long yeast concentration time and reduced concentration efficiency. In addition, when the concentration is not thorough, cyclic concentration cannot be performed, resulting in the problem of uncontrollable concentration work. Summary of the invention

[0005] In view of the above problems, the present invention provides a controllable concentration device for purifying yeast liquid, comprising a concentration tank, a finished product discharge pipe is arranged on the central axis of the concentration tank, a concentration unit is arranged in the vertical direction inside the concentration tank, the central axis of the concentration unit coincides with the finished product discharge pipe, and the main body of the concentration unit is a spiral structure; a circulation pipe is arranged on one side of the concentration unit; The concentrating unit comprises a plurality of groups of concentrating curved pipes, which are fan-shaped in cross-section when viewed from above and are arranged at equal intervals along a spiral path. A group of separation mechanisms are connected between two adjacent groups of the concentrating curved pipes; the upper and lower groups of the concentrating curved pipes are connected to the circulation pipe; and each group of the separation mechanisms is connected to the finished product discharge pipe; The yeast liquid is always in motion along the spiral path and is heated during the motion. The viscous yeast concentrate and the yeast liquid can be separated once when passing through each set of separation mechanisms, and circulated and concentrated through the circulation pipe until the yeast liquid is completely purified.

[0006] Furthermore, an external heating unit is provided on the inner wall of the bottom of the concentrating tank, and the external heating unit includes a heating chassis, which is installed on the inner wall of the bottom of the concentrating tank, and the central axis of the heating chassis coincides with the central axis of the concentrating tank; the input end of the heating chassis is connected to the output end of the heating device; and a plurality of groups of first heat release ports are evenly distributed on the top of the heating chassis.

[0007] Furthermore, a plurality of groups of extension tube racks are distributed in a circular array on the heating chassis, and the top heights of the plurality of extension tube racks are successively and equidistantly increased in a counterclockwise direction; the extension tube racks include an inner transfer tube and an outer transfer tube, the inner transfer tube is located on a side of the concentration unit body close to the central axis of the concentration tank, and the outer transfer tube is located on a side of the concentration unit away from the central axis of the concentration tank.

[0008] Furthermore, an upper heating mechanism is provided between the outer transfer tube and the inner transfer tube, and the upper heating mechanism includes an inclined heating top block, and the cavity of the heating top block is connected with the cavity of the heating bottom plate through the inner transfer tube and the outer transfer tube; a group of arc grooves with a fan-shaped cross-section in side view are opened on the upper and lower side walls of the heating top block, both ends of the arc groove are open structures, and a plurality of groups of second heat release ports are evenly distributed on the arc groove.

[0009] Furthermore, the separation mechanism includes a separation tube, wherein both ends of the separation tube are respectively connected to a separation inlet tube and a separation outlet tube, the output end of the separation inlet tube extends into the separation tube and is connected to a liquid outlet cylinder, a plurality of groups of liquid outlets are distributed in a circular array on the side wall of the liquid outlet cylinder, each group of the liquid outlets is provided with a group of microporous filter membranes, a feed extraction pipe is connected to the liquid outlet cylinder, the other end of the feed extraction pipe is connected to a finished product discharge pipe, and a second feed extraction pump is provided between the feed extraction pipe and the finished product discharge pipe.

[0010] Furthermore, a plurality of groups of flow conversion mechanisms are arranged at equal intervals in the concentrating elbow; the flow conversion mechanism includes a flow conversion tube, a central inlet tube and a central outlet tube are respectively provided at both ends of the flow conversion tube, a heat medium cavity is opened in the inner wall of the central inlet tube and the central outlet tube, a heat inlet pipe is connected to the heat medium cavity, and the other end of the heat inlet pipe extends to the outside of the concentrating elbow.

[0011] Furthermore, an isolation plate is provided at the input end of the central outlet pipe; a central outlet head is provided on the output end of the central inlet pipe, and one end of several groups of dispersion pipes are distributed in a circular array on the central outlet head, and the other ends of the several groups of dispersion pipes all pass through the isolation plate and are located around the central outlet pipe.

[0012] Furthermore, a liquid collecting hopper is provided on the side of the center outlet close to the isolation plate, the liquid collecting hopper is a trumpet-shaped structure, and the diameter of the liquid collecting hopper at one end close to the center outlet is larger than the diameter of the other end; the edges of the port of the liquid collecting hopper close to the center outlet are tightly fitted with the inner wall of the exchange tube; the end of the liquid collecting hopper away from the center outlet is connected to one end of the liquid collecting tube, and the other end of the liquid collecting tube is connected to the input end of the center outlet pipe.

[0013] Furthermore, a group of liquid stirring mechanisms is provided between two adjacent groups of the flow conversion mechanisms; the liquid stirring mechanisms include a plurality of groups of liquid stirring bases distributed in a circular array, and a group of liquid stirring plates are installed on a side wall of each group of liquid stirring bases close to the central axis of the concentration bend pipe, and the width of the side wall of the liquid stirring plate away from the liquid stirring base is greater than the width of the side wall close to the liquid stirring base; and a plurality of groups of isolation rings are arranged at equal intervals on both side walls of the liquid stirring plate.

[0014] A concentration method of a controllable concentration device for purifying yeast liquid, the concentration method comprising: The yeast solution is transported into the cavity of the concentration unit, and the yeast solution flows along the spiral path of the concentration unit; The yeast liquid is heated while the yeast liquid is flowing; After the yeast liquid is exchanged, the liquid at the center is displaced to the edge, and the liquid at the edge is displaced to the center, achieving balanced heating; The heated yeast liquid enters the separation mechanism, and the yeast concentrate that has been purified into a viscous state will be intercepted, while the unpurified yeast liquid will be discharged and continue to be separated by the subsequent separation mechanism; After the yeast liquid completely leaves the separation tube, the yeast concentrate in the separation mechanism is sucked out and discharged for unified collection; After the yeast liquid leaves the concentration unit from the bottom, it is reintroduced into the concentration unit from the top through the circulation pipe for repeated circulation concentration work until the concentration work is completed.

[0015] The beneficial effects of the present invention are: 1. By setting the concentration unit as a spiral structure, the yeast liquid is heated and descends along the spiral path during concentration, so that the yeast liquid is always in motion, and each set of separation mechanisms arranged at equal intervals can be separated independently, so that the viscous yeast concentrate can be separated from the liquid yeast liquid in time. It can achieve rapid layered purification. Compared with the traditional tank stirring method, there will be no dead corners for stirring and heating, and the purified yeast concentrate will not be re-mixed due to stirring. Thereby speeding up the concentration speed and improving the concentration efficiency. At the same time, the yeast liquid flowing out from the bottom of the concentration unit can be transported back to the concentration unit for repeated concentration by using the circulation pipe, achieving the purpose of controllability.

[0016] 2. After the yeast liquid enters the exchange tube, the central part flows into the central inlet tube, then passes through the central outlet and each group of dispersion tubes, and flows out of the exchange tube from the surrounding of the central outlet tube. The yeast liquid at the edge passes through the liquid collecting hopper and the liquid collecting tube and is finally discharged from the central outlet tube. The yeast liquid can be repeatedly exchanged between the center and the edge during the flow, which also increases the activity of the yeast liquid, increases the flow rate of the yeast liquid, and improves the smoothness of the movement of the yeast liquid while improving the heating balance.

[0017] 3. When the yeast liquid passes through the liquid stirring mechanism, it contacts with each group of liquid stirring plates distributed in the annular array. The agglomerates in the yeast liquid can be divided by utilizing the characteristic that the width of the side wall of the liquid stirring plate away from the liquid stirring base is greater than the width of the side wall close to the liquid stirring base. The divided agglomerates contact with each group of isolation rings and are secondary-divided by the side walls of the isolation rings. The isolation rings can also prevent the secondary-divided agglomerates from spreading around. After the flow is changed, the agglomerates can be evenly cut, thereby ensuring that the agglomerates in the yeast liquid will not be unable to be cut.

[0018] 4. First, the concentration unit is heated from the bottom through each group of first heat release ports, and then discharged from each group of second heat release ports on the upper and lower groups of arc grooves. Since the top height of each group of extended pipe racks increases in asymmetric increments in the counterclockwise direction, and the inner and outer transfer pipes are respectively set on both sides of the pipe body of the concentration unit, each group of inclined heating top blocks is exactly located on the extension path of the concentration unit. The heat energy released by the two groups of arc grooves can act on the parts of the concentration unit located at the upper and lower ends of itself at the same time, and through the fan-shaped characteristics of the arc grooves, the heat energy released by each group of second heat release ports can be concentrated to the center, reducing the waste of heat energy. Each part of the concentration unit can be evenly heated, thereby improving the heating effect.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A cross-sectional schematic diagram of a concentrating device according to an embodiment of the present invention is shown.

[0022] Figure 2 A schematic structural diagram of an external heating unit according to an embodiment of the present invention is shown.

[0023] Figure 3 A structural schematic diagram of an upper heating mechanism according to an embodiment of the present invention is shown.

[0024] Figure 4 A schematic diagram showing the connection between a concentration unit and a circulation pipe according to an embodiment of the present invention is shown.

[0025] Figure 5 A schematic diagram of the connection between the concentrating elbow and the separation mechanism according to an embodiment of the present invention is shown.

[0026] Figure 6 A schematic cross-sectional view of a concentrating elbow according to an embodiment of the present invention is shown.

[0027] Figure 7 A cross-sectional schematic diagram of a commutation mechanism according to an embodiment of the present invention is shown.

[0028] Figure 8 A schematic diagram of the connection between a central inlet pipe, a central outlet and each group of dispersed pipes according to an embodiment of the present invention is shown.

[0029] Fig. 9 A schematic structural diagram of a liquid stirring mechanism according to an embodiment of the present invention is shown.

[0030] Fig.10 A schematic cross-sectional view of a separation mechanism according to an embodiment of the present invention is shown.

[0031] In the figure: 100, concentration tank; 110, feed pipe; 120, exhaust pipe; 200, finished product box; 300, external heating unit; 310, heating bottom plate; 311, first heat release port; 320, extension pipe rack; 321, inner transfer pipe; 322, outer transfer pipe; 330, upper heating mechanism; 331, heating top block; 332, arc groove; 333, second heat release port; 400, finished product discharge pipe; 500, concentration unit; 510, concentration elbow; 520, conversion mechanism; 521, conversion pipe; 522 , center inlet pipe; 523, center outlet pipe; 524, heat inlet pipe; 525, center outlet; 526, dispersion pipe; 527, liquid collecting bucket; 528, liquid collecting pipe; 529, isolation plate; 530, liquid stirring mechanism; 531, liquid stirring base; 532, liquid stirring plate; 533, isolation ring; 540, separation mechanism; 541, separation pipe; 542, separation inlet pipe; 543, separation outlet pipe; 544, liquid outlet cylinder; 545, liquid outlet; 546, microporous filter membrane; 547, extraction pipe; 600, circulation pipe. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The present invention provides a controllable concentration device for purifying yeast liquid, for example, Figure 1 As shown, it includes a concentration tank 100, and a feed pipe 110 and an exhaust pipe 120 are provided on the top of the concentration tank 100. The exhaust pipe 120 is used to exhaust the water vapor generated when the yeast liquid is heated.

[0034] A finished product discharge pipe 400 is disposed on the central axis of the concentration tank 100 , and the bottom of the finished product discharge pipe 400 is connected to the finished product box 200 .

[0035] Exemplarily, a concentration unit 500 is vertically arranged in the concentration tank 100, and the central axis of the concentration unit 500 coincides with the central axis of the finished product discharge pipe 400. The main body of the concentration unit 500 is a spiral structure. The concentration unit 500 is used to purify and concentrate the yeast solution.

[0036] A circulation pipe 600 is vertically disposed on one side of the concentration unit 500. The top of the circulation pipe 600 is connected to the feed pipe 110. The upper and lower ends of the concentration unit 500 are both connected to the circulation pipe 600. A first pump is disposed in the circulation pipe 600. The circulation pipe 600 is used to transport the yeast liquid discharged from the bottom of the concentration unit 500 back to the top of the concentration unit 500 to achieve circulation concentration.

[0037] Exemplarily, an external heating unit 300 is disposed on the inner wall of the bottom of the concentration tank 100. The external heating unit 300 is used to heat the yeast solution in the concentration unit 500 from the outside.

[0038] Specifically, a heating device is provided on one side of the concentration tank 100 , and an output end of the heating device is communicated with the concentration unit 500 and the external heating unit 300 , respectively.

[0039] For example, Figure 2 and Figure 3As shown, the external heating unit 300 includes a heating chassis 310, and the heating chassis 310 is installed on the inner wall of the bottom of the concentration tank 100, and the central axis of the heating chassis 310 coincides with the central axis of the concentration tank 100. The input end of the heating chassis 310 is connected to the output end of the heating device. A plurality of groups of first heat release ports 311 are evenly distributed on the top of the heating chassis 310. A plurality of groups of extension tube racks 320 are distributed in a circular array on the heating chassis 310, and the top heights of the plurality of groups of the extension tube racks 320 are successively and equidistantly increased in the counterclockwise direction. The extension tube rack 320 includes an inner transfer tube 321 and an outer transfer tube 322, wherein the inner transfer tube 321 is located on the side of the main body of the concentration unit 500 close to the central axis of the concentration tank 100, and the outer transfer tube 322 is located on the side of the concentration unit 500 away from the central axis of the concentration tank 100.

[0040] Exemplarily, an upper heating mechanism 330 is provided between the outer transfer tube 322 and the inner transfer tube 321. The upper heating mechanism 330 includes an inclined heating top block 331. The cavity of the heating top block 331 is connected to the cavity of the heating bottom plate 310 through the inner transfer tube 321 and the outer transfer tube 322. A group of arc grooves 332 with a fan-shaped cross section in side view are opened on the upper and lower side walls of the heating top block 331. Both ends of the arc groove 332 are open structures, and a plurality of groups of second heat release ports 333 are evenly distributed on the arc groove 332.

[0041] The heating device is started, and heat energy is transported into the heating bottom plate 310 through the heating device. A portion of the heat energy is discharged through each group of first heat release ports 311, and heats the concentration unit 500 from the bottom. At the same time, the heat energy enters each group of heating top blocks 331 through each group of extension tube racks 320, and then is discharged from each group of second heat release ports 333 on the upper and lower arc grooves 332, and acts on the tube body of the concentration unit 500. Since the top height of each group of extension tube racks 320 increases in asymmetric increments in the counterclockwise direction, and the inner transfer tube 321 and the outer transfer tube 322 are respectively mounted on both sides of the tube body of the concentration unit 500, each group of inclined heating top blocks 331 is exactly located on the extension path of the concentration unit 500, and the heat energy released by its two groups of arc grooves 332 can simultaneously act on the parts of the concentration unit 500 located at the upper and lower ends thereof, and through the fan-shaped characteristics of the arc grooves 332, the heat energy released by each group of second heat release ports 333 can be concentrated to the center, reducing the waste of heat energy. Each part of the concentration unit 500 can be heated evenly, thereby improving the heating effect.

[0042] For example, Figure 4 , Figure 5 and Figure 6As shown, the concentration unit 500 includes a plurality of groups of concentration elbows 510, the concentration elbows 510 are arranged as a tubular structure with a fan-shaped cross section in a top view, the plurality of groups of the concentration elbows 510 are arranged at equal intervals along a spiral path, and a group of separation mechanisms 540 are connected between two adjacent groups of the concentration elbows 510. The upper and lower groups of the concentration elbows 510 are both connected to the circulation pipe 600. Each group of the separation mechanisms 540 is connected to the finished product discharge pipe 400. A plurality of groups of flow conversion mechanisms 520 are arranged at equal intervals in the concentration elbows 510, and a group of liquid stirring mechanisms 530 is provided between two adjacent groups of the flow conversion mechanisms 520.

[0043] By setting the concentration unit 500 as a spiral structure, the yeast liquid is heated and descends along the spiral path during the concentration, so that the yeast liquid is always in motion, and each group of separation mechanisms 540 arranged at equal intervals can perform independent separation, so that the viscous yeast concentrate can be separated from the liquid yeast liquid in time. Rapid layered purification is achieved. Compared with the traditional tank stirring method, there will be no dead corners for stirring and heating, and the purified yeast concentrate will not be re-mixed due to stirring. Thereby accelerating the concentration speed and improving the concentration efficiency. At the same time, the circulation pipe 600 can be used to transport the yeast liquid flowing out from the bottom of the concentration unit 500 back to the concentration unit 500 for repeated concentration, achieving the purpose of controllability.

[0044] For example, Figure 7 and Figure 8 As shown, the commutation mechanism 520 includes a commutation tube 521, and the two ends of the commutation tube 521 are respectively provided with a central inlet tube 522 and a central outlet tube 523. The inner walls of the central inlet tube 522 and the central outlet tube 523 are both provided with a heat medium cavity, and the heat medium cavity is connected with a heat inlet tube 524, and the other end of the heat inlet tube 524 extends to the outside of the concentration elbow 510 and is connected with the heating device. An isolation plate 529 is provided at the input end of the central outlet tube 523. A central outlet 525 is provided at the output end of the central inlet tube 522, and one end of a plurality of groups of dispersion tubes 526 are distributed in a circular array on the central outlet 525, and the other ends of the plurality of groups of dispersion tubes 526 all penetrate the isolation plate 529 and are located around the central outlet tube 523. A liquid collecting hopper 527 is provided on one side of the central outlet 525 close to the isolation plate 529. The liquid collecting hopper 527 is a trumpet-shaped structure, and the diameter of the liquid collecting hopper 527 at one end close to the central outlet 525 is larger than the diameter of the other end. The edges around the port of the liquid collecting hopper 527 close to the central outlet 525 are tightly fitted with the inner wall of the exchange tube 521. The end of the liquid collecting hopper 527 away from the central outlet 525 is connected to one end of the liquid collecting pipe 528, and the other end of the liquid collecting pipe 528 is connected to the input end of the central outlet pipe 523.

[0045] The heat medium enters the inner cavity of the central inlet pipe 522 and the central outlet pipe 523 through the heat inlet pipe 524. When the fermentation liquid flows through the center or the periphery and contacts the central inlet pipe 522 or the central outlet pipe 523, it can be heated. In this way, the effect of layered heating is achieved.

[0046] After the yeast liquid enters the exchange tube 521, the central part of the yeast liquid flows into the central inlet tube 522, and then flows out of the exchange tube 521 from the periphery of the central outlet tube 523 after passing through the central outlet 525 and each group of dispersion tubes 526. The yeast liquid at the edge passes through the liquid collecting bucket 527 and the liquid collecting tube 528 and is finally discharged from the central outlet tube 523. The yeast liquid can be repeatedly exchanged between the center and the edge during the flow, thereby increasing the activity of the yeast liquid, increasing the flow rate of the yeast liquid, and improving the heating balance while also improving the smoothness of the movement of the yeast liquid.

[0047] For example, Fig. 9 As shown, the liquid stirring mechanism 530 includes a plurality of groups of liquid stirring bases 531 distributed in a circular array, and a group of liquid stirring plates 532 are installed on a side wall of each group of liquid stirring bases 531 close to the central axis of the concentration elbow 510, and the width of the side wall of the liquid stirring plate 532 away from the liquid stirring base 531 is greater than the width of the side wall close to the liquid stirring base 531. A plurality of groups of isolation rings 533 are evenly spaced and arranged on both side walls of the liquid stirring plate 532.

[0048] When the yeast liquid passes through the liquid stirring mechanism 530, it contacts with the groups of liquid stirring plates 532 distributed in the annular array. The width of the side wall of the liquid stirring plate 532 away from the liquid stirring base 531 is greater than the width of the side wall close to the liquid stirring base 531, so that the lumps in the yeast liquid can be divided. The divided lumps contact with the groups of isolation rings 533 and are divided twice by the side walls of the isolation rings 533. The isolation rings 533 can also prevent the secondary divided lumps from spreading to the surroundings. After the flow is changed, the lumps can be evenly cut, thereby ensuring that the lumps in the yeast liquid will not be unable to be cut.

[0049] For example, Fig.10As shown, the separation mechanism 540 includes a separation tube 541, and the two ends of the separation tube 541 are respectively connected to a separation inlet tube 542 and a separation outlet tube 543, the output end of the separation inlet tube 542 extends into the separation tube 541, and is connected to a liquid outlet cylinder 544, and a plurality of groups of liquid outlets 545 are distributed in a circular array on the side wall of the liquid outlet cylinder 544, and each group of the liquid outlets 545 is provided with a group of microporous filter membranes 546, and the liquid outlet cylinder 544 is connected to a pumping tube 547, and the other end of the pumping tube 547 is connected to the finished product discharge pipe 400, and a second pumping pump is provided between the pumping tube 547 and the finished product discharge pipe 400. The separation tube 541 is connected to an exhaust valve, and an exhaust pipe is provided on the exhaust valve, and the output end of the exhaust pipe is connected to the exhaust pipe.

[0050] After the yeast liquid enters the liquid outlet cylinder 544 through the separation inlet pipe 542, the yeast concentrate that has been purified into a viscous state will be intercepted by the microporous filter membrane 546, while the yeast liquid that has not been purified will pass through the microporous filter membrane 546 and enter the separation tube 541, and then be discharged through the separation outlet pipe 543 and, after being heated, wait for the next set of separation mechanisms 540 to continue purification. When the yeast liquid leaves the separation tube 541, the second pump is turned on to suck the yeast concentrate in the liquid outlet cylinder 544 and discharge it into the finished product discharge pipe 400, and finally enter the finished product box 200.

[0051] The above embodiments have the following beneficial effects: 1. By setting the concentration unit 500 as a spiral structure, the yeast liquid is heated and descends along the spiral path during concentration, so that the yeast liquid is always in motion, and each set of separation mechanisms 540 arranged at equal intervals can perform independent separation, so that the viscous yeast concentrate can be separated from the liquid yeast liquid in time. It can achieve rapid layered purification. Compared with the traditional tank stirring method, there will be no dead corners for stirring and heating, and the purified yeast concentrate will not be re-mixed due to stirring. Thereby accelerating the concentration speed and improving the concentration efficiency. At the same time, the circulation pipe 600 can be used to transport the yeast liquid flowing out from the bottom of the concentration unit 500 back to the concentration unit 500 for repeated concentration, achieving the purpose of controllability.

[0052] 2. After the yeast liquid enters the exchange tube 521, the central part of the yeast liquid flows into the central inlet tube 522, and then flows out of the exchange tube 521 from the periphery of the central outlet tube 523 after passing through the central outlet 525 and each group of dispersion tubes 526. The yeast liquid at the edge passes through the liquid collecting bucket 527 and the liquid collecting tube 528 and is finally discharged from the central outlet tube 523. The yeast liquid can be repeatedly exchanged between the center and the edge during the flow, thereby increasing the activity of the yeast liquid, increasing the flow rate of the yeast liquid, and improving the heating balance while also improving the smoothness of the movement of the yeast liquid.

[0053] 3. When the yeast liquid passes through the liquid stirring mechanism 530, it contacts with the groups of liquid stirring plates 532 distributed in the annular array. By utilizing the characteristic that the width of the side wall of the liquid stirring plate 532 away from the liquid stirring base 531 is greater than the width of the side wall close to the liquid stirring base 531, the lumps in the yeast liquid can be divided. The divided lumps contact with the groups of isolation rings 533 and are divided twice by the side walls of the isolation rings 533. The isolation rings 533 can also prevent the secondary divided lumps from spreading around. After the flow is changed, the lumps can be evenly cut, thereby ensuring that the lumps in the yeast liquid will not be unable to be cut.

[0054] 4. First, the concentration unit 500 is heated from the bottom through each group of first heat release ports 311, and then discharged from each group of second heat release ports 333 on the upper and lower two groups of arc grooves 332. Since the top height of each group of extension tube racks 320 increases in asymmetric increments in the counterclockwise direction, and the inner transfer tube 321 and the outer transfer tube 322 are respectively mounted on both sides of the tube body of the concentration unit 500, each group of inclined heating top blocks 331 is exactly located on the extension path of the concentration unit 500, and the heat energy released by the two groups of arc grooves 332 can simultaneously act on the parts of the concentration unit 500 located at the upper and lower ends thereof, and through the fan-shaped characteristics of the arc grooves 332, the heat energy released by each group of second heat release ports 333 can be concentrated to the center, reducing the waste of heat energy. Each part of the concentration unit 500 can be evenly heated, thereby improving the heating effect.

[0055] Based on the above controllable concentrating device for purifying yeast solution, an embodiment of the present invention further provides a concentrating method of the controllable concentrating device for purifying yeast solution. Exemplarily, the concentrating method includes: The yeast solution is transported into the cavity of the concentration unit, and the yeast solution flows along the spiral path of the concentration unit; Turn on the heating device to heat the flowing yeast solution through the external heating unit and each group of flow conversion mechanisms; The yeast liquid flows through the flow conversion mechanism, and the liquid at the center is displaced to the edge through the center outlet and each group of dispersion pipes, while the liquid at the edge is displaced to the center through the liquid collecting hopper and the liquid collecting pipe, so as to achieve balanced heating; The heated yeast liquid flows through the separation inlet tube into the liquid outlet tube. The yeast concentrate that has been purified into a viscous state will be intercepted by the microporous filter membrane, while the unpurified yeast liquid will pass through the microporous filter membrane into the separation tube and be discharged to be separated by the subsequent separation mechanism. After the yeast liquid completely leaves the separation tube, the second pump is turned on to absorb the yeast concentrate in the liquid discharge tube and discharge it into the finished product discharge pipe, and finally into the finished product box; After the yeast liquid leaves the concentration unit from the bottom, it is reintroduced into the concentration unit from the top through the circulation pipe for repeated circulation concentration work until the concentration work is completed.

[0056] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A controllable concentration device for purifying yeast liquid, comprising a concentration tank (100), a finished product discharge pipe (400) being provided on the central axis of the concentration tank (100), and a concentration unit (500) being provided in the concentration tank (100) along the vertical direction, characterized in that: The central axis of the concentration unit (500) coincides with the finished product discharge pipe (400), and the main body of the concentration unit (500) is a spiral structure; a circulation pipe (600) is provided on one side of the concentration unit (500); The concentration unit (500) comprises a plurality of groups of concentration curved pipes (510) having a fan-shaped cross section in a top view and arranged at equal intervals along a spiral path; a group of separation mechanisms (540) are connected between two adjacent groups of the concentration curved pipes (510); the upper and lower groups of the concentration curved pipes (510) are connected to the circulation pipe (600); and each group of the separation mechanisms (540) is connected to the finished product discharge pipe (400); The yeast liquid is always in motion along the spiral path and is heated during the motion. When passing through each set of separation mechanisms (540), the viscous yeast concentrate and the yeast liquid can be separated once, and circulated and concentrated through the circulation pipe (600) until the yeast liquid is completely purified.

2. A controllable concentration device for purifying yeast liquid according to claim 1, characterized in that: An external heating unit (300) is provided on the inner wall of the bottom of the concentrating tank (100), and the external heating unit (300) comprises a heating base (310). The heating base (310) is installed on the inner wall of the bottom of the concentrating tank (100), and the central axis of the heating base (310) coincides with the central axis of the concentrating tank (100); the input end of the heating base (310) is connected to the output end of the heating device; and a plurality of groups of first heat release ports (311) are evenly distributed on the top of the heating base (310).

3. A controllable concentration device for purifying yeast liquid according to claim 2, characterized in that: A plurality of groups of extension tube racks (320) are distributed in a circular array on the heating base plate (310), and the top heights of the plurality of groups of extension tube racks (320) are successively and equidistantly increased in a counterclockwise direction; the extension tube rack (320) comprises an inner transfer tube (321) and an outer transfer tube (322), the inner transfer tube (321) being located on a side of the main body of the concentration unit (500) close to the central axis of the concentration tank (100), and the outer transfer tube (322) being located on a side of the concentration unit (500) far from the central axis of the concentration tank (100).

4. A controllable concentration device for purifying yeast liquid according to claim 3, characterized in that: An upper heating mechanism (330) is provided between the outer transfer tube (322) and the inner transfer tube (321), and the upper heating mechanism (330) comprises an inclined heating top block (331), and the cavity of the heating top block (331) is connected to the cavity of the heating bottom plate (310) through the inner transfer tube (321) and the outer transfer tube (322); a group of arc grooves (332) with a fan-shaped cross section in side view are opened on the upper and lower side walls of the heating top block (331), both ends of the arc groove (332) are open structures, and a plurality of groups of second heat release ports (333) are evenly distributed on the arc groove (332).

5. The controllable concentration device for purifying yeast liquid according to claim 1, characterized in that: The separation mechanism (540) comprises a separation tube (541), the two ends of the separation tube (541) are respectively connected to a separation inlet tube (542) and a separation outlet tube (543), the output end of the separation inlet tube (542) extends into the separation tube (541) and is connected to a liquid outlet cylinder (544), a plurality of groups of liquid outlets (545) are distributed in a circular array on the side wall of the liquid outlet cylinder (544), each group of the liquid outlets (545) is provided with a group of microporous filter membranes (546), the liquid outlet cylinder (544) is connected to a pumping tube (547), the other end of the pumping tube (547) is connected to a finished product discharge pipe (400), and a second pumping pump is provided between the pumping tube (547) and the finished product discharge pipe (400).

6. A controllable concentration device for purifying yeast liquid according to claim 1, characterized in that: A plurality of groups of flow conversion mechanisms (520) are arranged at equal intervals in the concentrating curved pipe (510); the flow conversion mechanism (520) comprises a flow conversion pipe (521); two ends of the flow conversion pipe (521) are respectively provided with a central inlet pipe (522) and a central outlet pipe (523); inner walls of the central inlet pipe (522) and the central outlet pipe (523) are both provided with a heat medium cavity; the heat medium cavity is connected to a heat inlet pipe (524); the other end of the heat inlet pipe (524) extends to the outside of the concentrating curved pipe (510).

7. A controllable concentration device for purifying yeast liquid according to claim 6, characterized in that: An isolation plate (529) is provided at the input end of the central outlet pipe (523); a central outlet head (525) is provided at the output end of the central inlet pipe (522), and one end of a plurality of groups of dispersion pipes (526) are distributed in a circular array on the central outlet head (525), and the other ends of the plurality of groups of dispersion pipes (526) all pass through the isolation plate (529) and are located around the central outlet pipe (523).

8. A controllable concentration device for purifying yeast liquid according to claim 7, characterized in that: A liquid collecting hopper (527) is provided on one side of the center outlet (525) close to the isolation plate (529); the liquid collecting hopper (527) is a trumpet-shaped structure, and the diameter of the end of the liquid collecting hopper (527) close to the center outlet (525) is larger than the diameter of the other end; the edges around the port of the liquid collecting hopper (527) close to the end of the center outlet (525) are tightly fitted with the inner wall of the exchange tube (521); the end of the liquid collecting hopper (527) away from the center outlet (525) is connected to one end of a liquid collecting tube (528), and the other end of the liquid collecting tube (528) is connected to the input end of the center outlet tube (523).

9. A controllable concentration device for purifying yeast liquid according to claim 6, characterized in that: A group of liquid stirring mechanisms (530) is provided between two adjacent groups of the flow conversion mechanisms (520); the liquid stirring mechanisms (530) include a plurality of groups of liquid stirring bases (531) distributed in a ring array, a group of liquid stirring plates (532) are installed on a side wall of each group of the liquid stirring bases (531) close to the central axis of the concentration curved pipe (510), and the width of a side wall of the liquid stirring plate (532) away from the liquid stirring base (531) is greater than the width of a side wall close to the liquid stirring base (531); and a plurality of groups of isolation rings (533) are arranged at equal intervals on both side walls of the liquid stirring plate (532).

10. A concentration method for the controllable concentration device for purifying yeast solution according to any one of claims 1 to 9, characterized in that: The concentration method comprises: The yeast solution is transported into the cavity of the concentration unit, and the yeast solution flows along the spiral path of the concentration unit; The yeast liquid is heated while the yeast liquid is flowing; After the yeast liquid is exchanged, the liquid at the center is displaced to the edge, and the liquid at the edge is displaced to the center, achieving balanced heating; The heated yeast liquid enters the separation mechanism, and the yeast concentrate that has been purified into a viscous state will be intercepted, while the unpurified yeast liquid will be discharged and continue to be separated by the subsequent separation mechanism; After the yeast liquid completely leaves the separation tube, the yeast concentrate in the separation mechanism is sucked out and discharged for unified collection; After the yeast liquid leaves the concentration unit from the bottom, it is reintroduced into the concentration unit from the top through the circulation pipe for repeated circulation concentration work until the concentration work is completed.

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