Forward osmosis coupled reverse osmosis concentration device for milk

Abstract

The invention belongs to the field of concentration devices, and particularly relates to a milk forward osmosis coupled reverse osmosis concentration device which comprises a milk concentration tank, a milk processing frame is arranged on the inner wall of the milk concentration tank, and a concentration anti-aggregation mechanism is arranged in the milk concentration tank. According to the invention, the surface of the membrane is kept clean through a physical scraping effect, and the selective separation function of the reverse osmosis membrane is ensured to be fully exerted, so that the high and stable desalination rate is ensured; besides, the cleaning scraper and the turbulent flow column do reciprocating motion in the membrane runner to generate strong shearing force and turbulent flow, and the forced disturbance effectively destroys and thinns a static boundary layer on the surface of the membrane, so that the osmotic pressure additionally increased due to concentration polarization is directly reduced, and the osmotic pressure on the surface of the membrane is reduced due to the fact that the concentration polarization is weakened; and meanwhile, a newly generated pollution layer is removed in time, the water flow resistance is reduced, and the newly generated pollution layer and the water flow resistance act together, so that the driving pressure required by the system is remarkably reduced under the condition of the same water yield, and energy conservation and consumption reduction are realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of concentration devices, in particular to a milk forward osmosis coupled reverse osmosis concentration device. BACKGROUND

[0002] During the processing of milk, it is often necessary to concentrate the milk to remove part of the water, improve the efficiency of subsequent processing, reduce transportation costs, or produce products with specific flavors and concentrations (such as condensed milk, concentrated milk, etc.). Traditional methods of concentrating milk mainly include evaporation concentration and reverse osmosis concentration. Among them, reverse osmosis technology, as a membrane separation technology, uses the pressure difference on both sides of the semi-permeable membrane as the driving force, so that water molecules flow from the high concentration side to the low concentration side through the membrane, while most of the solutes (such as proteins, lactose, minerals, etc.) are retained, thereby achieving the purpose of concentration.

[0003] After searching, the patent with publication number CN217662593U discloses a milk forward osmosis coupled reverse osmosis concentration device, which belongs to the technical field of reverse osmosis concentration devices. The milk forward osmosis coupled reverse osmosis concentration device includes a raw liquid storage mechanism, a cleaning mechanism, and an osmosis mechanism. The raw liquid storage mechanism includes a storage tank, a tank cover, and a water addition pipe. The tank cover is arranged on the top of the storage tank, and the water addition pipe is connected and arranged above the tank cover. One side of the bottom of the storage tank is provided with a liquid outlet. The cleaning mechanism includes a circular plate, a cleaning brush, a threaded rod, a guide rod, and a driving part. The circular plate is arranged inside the storage tank. The cleaning brush cleans the inner wall of the storage tank, and the clean water flowing into the storage tank flows from the cleaning brush, so that the cleaning brush and the inner wall of the storage tank are cleaned together. The driving part drives the threaded rod to move reciprocally in the vertical direction, and drives the cleaning brush to clean the storage tank quickly and thoroughly.

[0004] However, the concentration device still has the following defects: as the concentration proceeds, the solute concentration on the membrane surface increases sharply, forming a concentration polarization, so that the pollutants (such as scaling, organic matter, microorganisms, etc.) are compacted and attached to the surface of the semi-permeable membrane under high pressure, forming a stubborn pollution layer, causing the transmembrane pressure difference to rise sharply, the water flux to decrease, and the desalination rate to decrease, thereby causing the operating efficiency of the entire reverse osmosis system to decrease seriously. SUMMARY

[0005] The purpose of the present application is to provide a milk forward osmosis coupled reverse osmosis concentration device to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application is implemented by the following technical scheme: a milk forward osmosis coupled reverse osmosis concentration device, comprising: a milk concentration tank; the inner wall of the milk concentration tank is provided with a milk processing rack, and the inside of the milk concentration tank is provided with a concentration anti-aggregation mechanism; The concentrated anti-aggregation mechanism is used for continuous stirring and scrubbing the inside of the concentration device through the linkage of the motor-driven stirring plate and the cleaning plate, and the concentrated anti-aggregation mechanism comprises a motor, a transmission belt, a transmission wheel, a threaded rod, a stirring plate, a cleaning plate and a limiting plate. The reminding mechanism is used for prompting the impurity accumulation condition after the milk is concentrated and filtered.

[0007] Preferably, the three transmission wheels are rotationally connected to the front face of the milk concentration tank, the back faces of two of the transmission wheels are fixedly connected with threaded rods, the middle portions of the two threaded rods are threadedly connected with stirring plates, the inner walls of the two stirring plates are fixedly connected with a plurality of stirring rods, the inner sides of the two stirring plates are clampingly connected with cleaning plates, a transmission belt is sleeved between the three transmission wheels, the inside of the milk concentration tank is provided with two semi-permeable membrane filters, one side of the milk concentration tank is provided with a milk storage tank, the top portions of the two semi-permeable membrane filters are provided with liquid pumps, the liquid inlets of the liquid pumps are connected with the semi-permeable membrane filters, the liquid outlets of the liquid pumps are fixedly connected with transmission pipes, the inner sides of the stirring plates are provided with flexible wiping strips, the middle portions of the stirring plates are provided with a plurality of turbulence columns, and the inside front side of the milk concentration tank is provided with a flow channel guide opening.

[0008] Preferably, the reminding mechanism comprises a cover plate, a filter box, a filter screen plate, a reminding box, a trigger rod, a buffer spring, a sealing plate, a display plate and a reminding groove, the inside of the filter box is vertically slidingly connected with two filter screen plates, the bottom end of the filter box is clampingly connected with the reminding box, the inner wall of the reminding box is fixedly connected with a sealing plate, the bottom ends of the two filter screen plates are fixedly connected with trigger rods, the outer walls of the trigger rods are sleeved with buffer springs, one end of the trigger rod penetrates through the sealing plate, the bottom end of the trigger rod is fixedly connected with a display plate, the display plate is slidingly connected to the inner wall of the reminding box, and two reminding grooves are formed in the front face of the reminding box.

[0009] Preferably, the bottom end of the milk processing rack is fixedly connected with a collection box, the bottom end of the collection box is fixedly connected with two connecting rods, one end of each of the two connecting rods is fixedly connected to the back face of the milk concentration tank, the front face of the milk concentration tank is fixedly connected with a milk inlet pipe, and the back face of the milk storage tank is fixedly connected with a milk outlet pipe.

[0010] Preferably, one end of each of the two threaded rods is rotationally connected with a limiting plate, and the two ends of the limiting plate are respectively fixedly connected to the inner walls of the milk concentration tank.

[0011] Preferably, the motor is fixedly connected to the front face of the milk concentration tank, and the output end of the motor is fixedly connected to the front face of the other transmission wheel.

[0012] Preferably, the inner sides of the two cleaning wipers are respectively attached to the side walls of the two semi-permeable membrane filters, and the bottom ends of the two stirring plates are slidingly connected to the inner walls of the bottom end of the milk concentration tank.

[0013] Preferably, the bottom ends of the two transmission pipes are fixedly connected with support rods, and the bottom ends of the two support rods are fixedly connected to the top end of the milk storage tank.

[0014] Preferably, the bottom end of the buffer spring is fixedly connected to the top end of the sealing plate, and the top end of the buffer spring is fixedly connected to the inner side of the top end of the trigger rod.

[0015] Preferably, the top end of the filter box is hingedly connected with a cover plate, one end of the display plate penetrates through the reminding groove and is slidingly connected with the reminding groove, and the side wall of the filter box is fixedly connected with two branch pipes.

[0016] Compared with the prior art, the present application has the following advantages: 1、The concentration anti-aggregation mechanism is arranged, the milk to be concentrated is introduced into the milk concentration tank through the milk inlet pipe, the water molecules in the milk enter the draw solution on the other side through the semi-permeable membrane filter under the driving of the osmotic pressure difference in the process of forward osmosis concentration, as the concentration proceeds, the protein, fat and other components in the milk may aggregate to form impurities and adhere to the surface of the semi-permeable membrane filter, resulting in membrane pollution and concentration efficiency reduction, when it is observed by the reminding mechanism that the semi-permeable membrane filter 13 needs to be cleaned, the motor is started, the transmission wheel connected with the output end of the motor drives the other transmission wheel to rotate through the transmission belt, so as to drive the two threaded rods fixed on the back of the transmission wheel to rotate synchronously, the rotating threaded rods drive the stirring plates fixedly connected with the threaded rods to move axially along the threaded rods, the stirring plates and the plurality of stirring rods fixed thereon agitate the milk in the milk concentration tank in the moving process, scatter the aggregates that may be formed, at the same time, the inner sides of the cleaning wipers fixedly connected with the stirring plates or moving synchronously tightly abut against the side walls of the semi-permeable membrane filter to wipe and clean, remove the adhered pollutants, the flexible wiping strips maintain contact with the membrane surface in the running process, remove the pollution layer being formed in line and in real time through the physical scraping action, prevent the pollution layer from aging, compacting and solidifying, maintain the cleanliness of the membrane surface, and ensure that the selective separation function of the reverse osmosis membrane can be fully exerted, so as to ensure high and stable desalination rate; in addition, the cleaning scraper and the turbulence column reciprocate in the membrane flow channel, generate strong shear force and turbulent flow, the forced disturbance effectively destroys and thins the static boundary layer on the membrane surface, so as to directly reduce the osmotic pressure that is additionally increased due to the concentration difference polarization, the concentration difference polarization is weakened, and the osmotic pressure on the membrane surface is reduced; at the same time, the newly generated pollution layer is timely removed, the water flow resistance is reduced, and the two jointly act, so that the driving pressure required by the system is significantly reduced under the condition of the same water production, so that energy saving and consumption reduction are realized. 2、The present application is provided with a reminder mechanism, milk after forward osmosis concentration, containing a certain amount of impurities concentrated liquid or subsequent processing liquid through the transmission pipe into the filter box, the inside of the filter box vertical sliding connection two filter screen plate plays a filtering role, when the milk flow through the filter screen plate, the suspended impurities, larger particles and other filter screen plate interception attached to the surface of the filter screen plate, with the filtering process, the impurities on the filter screen plate gradually accumulated, resulting in the weight of the filter screen plate itself is constantly increasing, the bottom end of each filter screen plate is fixedly connected with a trigger rod, the outer wall of the trigger rod is sleeved with a buffer spring, the both ends of the spring are fixed to the top inside of the filter screen plate and the top of the sealing plate of the reminder box, in the initial state, the buffer spring provides a certain upward support force, so that the filter screen plate remains in its initial position, as the weight of the filter screen plate increases due to the attachment of impurities, its gravity gradually overcomes the support force of the buffer spring, when the impurities on the filter screen plate accumulate to a certain amount, its weight is enough to make the filter screen plate overcome the spring force to move downward, the trigger rod fixedly connected with the filter screen plate moves downward, the display panel fixedly connected with the bottom end of the trigger rod also moves downward, the color of the display panel is designed to be more eye-catching, the purpose is to form obvious visual contrast in the reminder box, the display panel can slide on the inner wall of the reminder box, the front of the reminder box is provided with two reminder slots matched with the size of the display panel, in the initial stage of normal filtration, the display panel is located in the upper part of the reminder slot or outside the slot due to the support of the buffer spring, and it is not easy to be noticed, when the weight of the impurities accumulated on the filter screen plate is large enough, the trigger rod drives the display panel to move downward to completely enter the reminder slot and locate the bottom of the inner wall of the reminder slot, the eye-catching display panel can be clearly displayed in the reminder slot, the staff can observe the reminder mechanism on the side of the transmission pipe, if the display panel is observed to appear at the bottom of the reminder slot, it can be judged that the filter screen plate has been blocked by a large amount of impurities, affecting the filtering effect, and the filter screen plate needs to be cleaned or replaced in time, through timely cleaning or replacing the blocked filter screen plate, the smooth flow of the material in the transmission pipe and the filtering effect are ensured, the adverse effects of poor filtration on the subsequent forward osmosis or reverse osmosis unit are avoided, thereby enhancing the stability and reliability of the operation of the entire milk forward osmosis coupled reverse osmosis concentration device, ensuring the continuity of the concentration process and the consistency of the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a partial perspective view of the present application; Figure 2 is a schematic view of the overall structure of the present application; Figure 3 is a schematic view of the structure of the left half of the present application; Figure 4 is a schematic view of the structure of the concentration anti-aggregation mechanism of the present application; Figure 5 is a schematic view of the local structure of the concentration anti-aggregation mechanism of the present application; Figure 6The structure schematic diagram of the reminding mechanism of the present application; Figure 7 The structure schematic diagram of the reminding mechanism of the present application Figure 1 The structure schematic diagram of the reminding mechanism of the present application Figure 8 The structure schematic diagram of the reminding mechanism of the present application Figure 6 The structure schematic diagram of the reminding mechanism of the present application

[0018] In the figure: 1, milk processing frame; 2, collection box; 3, connecting rod; 4, milk storage pool; 5, reminding mechanism; 501, cover plate; 502, filter box; 503, filter screen plate; 504, reminding box; 505, trigger rod; 506, buffer spring; 507, sealing plate; 508, display plate; 509, reminding groove; 6, concentrated anti-aggregation mechanism; 601, motor; 602, transmission belt; 603, transmission wheel; 604, threaded rod; 605, stirring plate; 606, cleaning wipe plate; 607, limiting plate; 608, stirring rod; 609, spoiler column; 610, flexible wiping strip; 8, liquid pump; 9, milk concentration pool; 10, transmission pipe; 11, branch pipe; 12, supporting rod; 13, semi-permeable membrane filter; 14, milk inlet pipe; 15, milk outlet pipe; 16, flow channel guide port. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0020] Please refer to Figure 1 - Figure 8 The present application provides two technical solutions, specifically including the following embodiments: Embodiment one The application discloses a milk concentration device coupled with forward osmosis and reverse osmosis, which comprises a milk concentration tank 9 and a concentration anti-aggregation mechanism 6. The inner wall of the milk concentration tank 9 is provided with a milk processing rack 1, and the inside of the milk concentration tank 9 is provided with the concentration anti-aggregation mechanism 6. The concentration anti-aggregation mechanism 6 is used for continuously stirring and scrubbing the inside of the concentration device through the linkage of an agitator plate 6005 and a cleaning squeegee plate 606 driven by a motor 601, so that the aggregation and blockage of milk protein and other components are effectively prevented. The concentration anti-aggregation mechanism 6 comprises the motor 601, a transmission belt 602, three transmission wheels 603, two threaded rods 604, two agitator plates 605, two cleaning squeegee plates 606 and a limiting plate 607. The three transmission wheels 603 are rotationally connected to the front face of the milk concentration tank 9, the back faces of two transmission wheels 603 are fixedly connected with the threaded rods 604, the middle portions of the two threaded rods 604 are threadedly connected with the agitator plates 605, the inner walls of the two agitator plates 605 are fixedly connected with a plurality of stirring rods 608, the agglomerated impurities can be dispersed to avoid the blockage of the semi-permeable membrane filter 13, the inner sides of the two agitator plates 605 are clampingly connected with the cleaning squeegee plates 606, the transmission belt 602 is sleeved between the three transmission wheels 603, the inside of the milk concentration tank 9 is provided with two semi-permeable membrane filters 13, one side of the milk concentration tank 9 is provided with a milk storage tank 4, the top portions of the two semi-permeable membrane filters 13 are provided with liquid pumps 8, a plurality of pores are formed in the biological membrane, the pores can filter impurities, the liquid pumps 8 are matched with the pores, the suction force generated by the liquid pumps 8 can convey the milk passing through the pores into the transmission pipes 10, according to the prior art, the liquid inlet of the liquid pump 8 is connected with the semi-permeable membrane filter 13, the liquid outlet of the liquid pump 8 is fixedly connected with the transmission pipe 10, the bottom end of the milk processing rack 1 is fixedly connected with a collection box 2, the bottom end of the collection box 2 is fixedly connected with two connecting rods 3, one end of the two connecting rods 3 is fixedly connected to the back face of the milk concentration tank 9, the front face of the milk concentration tank 9 is fixedly connected with a milk inlet pipe 14, the milk can be conveyed into the milk concentration tank 9 through the milk inlet pipe 14, the back face of the milk storage tank 4 is fixedly connected with a milk outlet pipe 15, the concentrated and filtered milk can be discharged by opening the milk outlet pipe 15, one end of the two threaded rods 604 is rotationally connected with the limiting plate 607, the limiting plate 607 can provide support for the threaded rods 604 and limit the threaded rods 604, the two ends of the limiting plate 607 are fixedly connected to the inner walls of the milk concentration tank 9, the motor 601 is fixedly connected to the front face of the milk concentration tank 9, the output end of the motor 601 is fixedly connected to the front face of the other transmission wheel 603, the inner sides of the two cleaning squeegee plates 606 are respectively attached to the side walls of the two semi-permeable membrane filters 13, the bottom ends of the two agitator plates 605 are slidingly connected to the inner walls of the bottom end of the milk concentration tank 9, the bottom ends of the two transmission pipes 10 are fixedly connected with support rods 12, and the bottom ends of the two support rods 12 are fixedly connected to the top end of the milk storage tank 4.It should be noted that the application can be seamlessly integrated with the PLC or DCS control system of the reverse osmosis system, by monitoring the transmembrane pressure difference, water flow and other key parameters, the system can intelligently judge the pollution trend, and start the cleaning program as needed; the inner side of the stirring plate 605 is provided with a flexible wiping strip 610, the middle part of the stirring plate 605 is provided with a plurality of turbulence columns 609, and the inner front side of the milk concentration tank 9 is provided with a flow channel guide 16.

[0021] In operation, the milk to be concentrated is introduced into the milk concentration tank 9 through the milk inlet pipe 14, and the milk is subjected to forward osmosis concentration in the milk concentration tank 9. In this process, water molecules in the milk are driven by the osmotic pressure difference to pass through the semi-permeable membrane filter 13 into the draw solution on the other side. As the concentration proceeds, the protein, fat and other components in the milk may aggregate to form impurities and adhere to the surface of the semi-permeable membrane filter 13, causing membrane fouling and reducing the concentration efficiency. When the semi-permeable membrane filter 13 needs to be cleaned as observed by the reminding mechanism 5, the motor 601 is started, and the transmission wheel 603 connected to the output end of the motor 601 drives the other transmission wheel 603 to rotate through the transmission belt 602, thereby driving the two threaded rods 604 fixed on the back of the transmission wheel 603 to rotate synchronously. The rotating threaded rods 604 drive the stirring plate 605 connected with the threaded rods 604 to move axially along the threaded rods 604. The stirring plate 605 and the plurality of stirring rods 608 fixed thereon stir the milk in the milk concentration tank 9 during the movement, dispersing the aggregates that may be formed. At the same time, the cleaning wiper plate 606 fixedly connected with or synchronously moving with the stirring plate 605 abuts against the side wall of the semi-permeable membrane filter 13 on the inside, and performs wiping and cleaning to remove the adhered pollutants. The limiting plate 607 ensures that the threaded rods 604 and the stirring plate 605 stably operate in the predetermined track. Under the joint action of the stirring plate 605 and the milk processing rack 1, the dispersed impurities flow with the milk and finally fall into the collection box 2, realizing the linkage separation of the concentration process and the impurity collection. During the process of the concentration anti-aggregation mechanism 6 synchronously with the forward osmosis concentration process, the stirring of the stirring plate 605 and the wiping of the cleaning wiper plate 606 can be started as needed or on a fixed time basis. This dynamic linkage mode effectively prevents the semi-permeable membrane filter 13 from being blocked, avoids fluctuations or interruptions in the concentration efficiency, significantly improves the continuity and stability of the entire forward osmosis concentration process, and ensures the continuous and efficient performance of the concentration process. The stirring of the stirring plate 605 not only disperses the aggregates, but also guides the impurities upward in cooperation with the milk processing rack 1. This guiding action forms a linkage with the collection box 2, so that the impurities can be more effectively and automatically collected, reducing manual intervention. Compared with the traditional periodic chemical cleaning or high-pressure flushing method, the present application performs continuous cleaning in the concentration process by a physical method with low intensity. This linkage cleaning mode on demand and with low energy consumption avoids the occurrence of serious blockage and realizes energy saving and consumption reduction. At the same time, the continuous cleaning ensures the high flux of the membrane, indirectly improves the concentration efficiency, and realizes the linkage optimization of energy saving and efficiency.

[0022] Example Two On the basis of the first embodiment, one side of the transmission pipe 10 is provided with a reminding mechanism 5, the reminding mechanism 5 comprises a cover plate 501, a filter box 502, a filter screen plate 503, a reminding box 504, a trigger rod 505, a buffer spring 506, a sealing plate 507, a display plate 508 and a reminding groove 509, two filter screen plates 503 are vertically and slidably connected in the filter box 502, the filter box 502 is clamped and connected with the reminding box 504 at the bottom end, the inner wall of the reminding box 504 is fixedly connected with the sealing plate 507, the bottom end of each filter screen plate 503 is fixedly connected with the trigger rod 505, the outer wall of the trigger rod 505 is sleeved with the buffer spring 506, the buffer spring 506 can provide a certain support for the filter screen plate 503, so as to avoid that the milk liquid impacts on the filter screen plate 503, so that the filter screen plate 503 is lowered, one end of the trigger rod 505 penetrates through the sealing plate 507, the bottom end of the trigger rod 505 is fixedly connected with the display plate 508, the display plate 508 is eye-catching in color, the display plate 508 is slidably connected to the inner wall of the reminding box 504, two reminding grooves 509 are formed on the front surface of the reminding box 504, when the user observes that the display plate 508 is arranged at the bottom end of the inner wall of the reminding groove 509, it indicates that the weight of the filter screen plate 503 is too large, the amount of impurities on the surface is too much, and it needs to be replaced in time.The bottom end of the buffer spring 506 is fixedly connected to the top end of the sealing plate 507, and the top end of the buffer spring 506 is fixedly connected to the inner side of the top end of the trigger rod 505. The top end of the filter box 502 is clampingly connected with the cover plate 501. One end of the display plate 508 penetrates the reminding groove 509 and is slidingly connected with the reminding groove 509. The sidewall of the filter box 502 is fixedly connected with two branch pipes 11. After the milk is concentrated by the forward osmosis, the concentrated liquid containing impurities or subsequent treatment liquid flows into the filter box 502 through the transmission pipe 10. The two filter screen plates 503 slidingly connected in the filter box 502 have a filtering effect. When the milk flows through the filter screen plate 503, the suspended impurities and larger particles in the milk are intercepted and attached to the surface of the filter screen plate 503. As the filtering process proceeds, the impurities on the filter screen plate 503 gradually accumulate, causing the weight of the filter screen plate 503 to continuously increase. The bottom end of each filter screen plate 503 is fixedly connected with a trigger rod 505. The outer wall of the trigger rod 505 is sleeved with a buffer spring 506. The two ends of the spring are fixed to the top end of the filter screen plate 503 and the top end of the sealing plate 507 on the inner wall of the reminding box 504, respectively. In the initial state, the buffer spring 506 provides a certain upward supporting force, so that the filter screen plate 503 remains in its initial position. As the weight of the filter screen plate 503 increases due to the attachment of impurities, its gravity gradually overcomes the supporting force of the buffer spring 506. When the impurities on the filter screen plate 503 accumulate to a certain amount, and the weight is enough to make the filter screen plate 503 overcome the spring force and move downward, the trigger rod 505 fixedly connected with the filter screen plate 503 moves downward. During the downward movement of the trigger rod 505, the display plate 508 fixedly connected to the bottom end of the trigger rod 505 also moves downward. The color of the display plate 508 is designed to be eye-catching, so as to form a clear visual contrast in the reminding box 504. The display plate 508 can slide on the inner wall of the reminding box 504. Two reminding grooves 509 with a size suitable for the display plate 508 are arranged on the front surface of the reminding box 504. In the initial filtering stage, the display plate 508 is located in the upper part of the reminding groove 509 or outside the groove due to the supporting effect of the buffer spring 506, and is not easy to be noticed. When the weight of the impurities accumulated on the filter screen plate 503 is large enough, the trigger rod 505 drives the display plate 508 to move downward to completely enter the reminding groove 509 and is located at the bottom end of the inner wall of the reminding groove 509. The eye-catching display plate 508 can be clearly displayed in the reminding groove 509. The staff can observe the reminding mechanism 5 on the side of the transmission pipe 10. If the display plate 508 is observed to appear at the bottom of the reminding groove 509, it can be judged that the filter screen plate 503 has been blocked by a large amount of impurities, affecting the filtering effect, and the filter screen plate 503 needs to be cleaned or replaced in time. By cleaning or replacing the blocked filter screen plate 503 in time, the smooth flow of the material in the transmission pipe 10 and the filtering effect are ensured, and the adverse effects of poor filtration on the subsequent forward osmosis or reverse osmosis unit are avoided, thereby enhancing the stability and reliability of the operation of the entire milk forward osmosis coupled reverse osmosis concentration device, ensuring the continuity of the concentration process and the consistency of the product quality.

[0023] The above merely provides the preferred embodiment of the present application and not intended to limit the present application. Accordingly, any modification, equivalent replacement, and improvement made without departing from the spirit and principle of the present application shall fall in the scope of protection of the present application.

Claims

1. A milk concentration device with forward osmosis coupled to reverse osmosis, characterized in that: include: Milk concentration tank (9); the inner wall of the milk concentration tank (9) is provided with a milk processing rack (1), and the inside of the milk concentration tank (9) is provided with a concentration and anti-agglomeration mechanism (6). Concentration and anti-agglomeration mechanism (6); The concentration and anti-agglomeration mechanism (6) is used to continuously stir and scrub the inside of the concentration device through the linkage between the stirring plate driven by the motor and the cleaning wiping plate. The concentration and anti-agglomeration mechanism (6) includes a motor (601), a transmission belt (602), a transmission wheel (603), a threaded rod (604), a stirring plate (605), a cleaning wiping plate (606), and a limiting plate (607). The reminder mechanism (5) is used to indicate the accumulation of impurities after milk concentration and filtration.

2. The milk concentration device with forward osmosis coupled to reverse osmosis according to claim 1, characterized in that: All three drive wheels (603) are rotatably connected to the front of the milk concentration tank (9). Two of the drive wheels (603) have threaded rods (604) fixedly connected to their backs. A stirring plate (605) is threadedly connected to the middle of each of the two threaded rods (604). Multiple stirring rods (608) are fixedly connected to the inner walls of each of the two stirring plates (605). A cleaning wiping plate (606) is engaged with the inner side of each of the two stirring plates (605). A drive belt (602) is sleeved between the three drive wheels (603). The milk concentration tank (9) is internally equipped with… There are two semi-permeable membrane filters (13), and a milk storage tank (4) is provided on one side of the milk concentration tank (9). A liquid pump (8) is provided on the top of each of the two semi-permeable membrane filters (13). The inlet of the liquid pump (8) is connected to the semi-permeable membrane filter (13), and a transmission pipe (10) is fixedly connected to the outlet of the liquid pump (8). A flexible wiping strip (610) is provided on the inner side of the stirring plate (605), and multiple turbulence columns (609) are provided in the middle of the stirring plate (605). A flow channel guide port (16) is provided on the front side of the inside of the milk concentration tank (9).

3. The milk concentration device with forward osmosis coupled to reverse osmosis according to claim 1, characterized in that: The reminder mechanism (5) includes a cover plate (501), a filter box (502), a filter screen plate (503), a reminder box (504), a trigger rod (505), a buffer spring (506), a sealing plate (507), a display plate (508), and a reminder slot (509). Two filter screen plates (503) are vertically slidably connected inside each filter box (502). The bottom end of the filter box (502) is engaged with the reminder box (504), and the inner wall of the reminder box (504) is fixedly connected with a sealing plate. The sealing plate (507) and the bottom ends of the two filter plates (503) are fixedly connected to trigger rods (505). The outer walls of the trigger rods (505) are fitted with buffer springs (506). One end of the trigger rod (505) passes through the sealing plate (507). The bottom end of the trigger rod (505) is fixedly connected to a display plate (508). The display plate (508) is slidably connected to the inner wall of the reminder box (504). The front of the reminder box (504) has two reminder slots (509).

4. The milk concentration device with forward osmosis coupled to reverse osmosis according to claim 2, characterized in that: The bottom of the milk processing rack (1) is fixedly connected to a collection box (2), and the bottom of the collection box (2) is fixedly connected to two connecting rods (3). One end of the two connecting rods (3) is fixedly connected to the back of the milk concentration tank (9). The front of the milk concentration tank (9) is fixedly connected to a milk inlet pipe (14), and the back of the milk storage tank (4) is fixedly connected to a milk outlet pipe (15).

5. The milk concentration device with forward osmosis coupled to reverse osmosis according to claim 1, characterized in that: One end of each of the two threaded rods (604) is rotatably connected to a limiting plate (607), and the two ends of the limiting plate (607) are respectively fixedly connected to the inner wall of the milk concentration tank (9).

6. The milk concentration device with forward osmosis coupled to reverse osmosis according to claim 1, characterized in that: The motor (601) is fixedly connected to the front of the milk concentration tank (9), and the output end of the motor (601) is fixedly connected to the front of another transmission wheel (603).

7. The milk concentration device with forward osmosis coupled to reverse osmosis according to claim 1, characterized in that: The inner sides of the two cleaning wipers (606) are respectively attached to the sidewalls of the two semi-permeable membrane filters (13), and the bottom ends of the two stirring plates (605) are slidably connected to the inner wall of the bottom end of the milk concentration tank (9).

8. The milk concentration device with forward osmosis coupled to reverse osmosis according to claim 2, characterized in that: The bottom ends of the two transmission tubes (10) are fixedly connected to support rods (12), and the bottom ends of the two support rods (12) are fixedly connected to the top of the milk storage tank (4).

9. A milk concentration device with forward osmosis coupled to reverse osmosis according to claim 3, characterized in that: The bottom end of the buffer spring (506) is fixedly connected to the top end of the sealing plate (507), and the top end of the buffer spring (506) is fixedly connected to the inner side of the top end of the trigger rod (505).

10. A milk concentration device with forward osmosis coupled to reverse osmosis according to claim 3, characterized in that: The top of the filter box (502) is fitted with a cover plate (501), one end of the display panel (508) passes through the reminder slot (509) and is slidably connected to the reminder slot (509), and two branch pipes (11) are fixedly connected to the side wall of the filter box (502).

Images