Lactose production and purification device and use method

Abstract

The lactose production and purification device comprises a support, a stirring box is installed on one side in the support, a stirring motor is installed at the top of the stirring box, the bottom output end of the stirring motor penetrates into the stirring box to be connected with a stirring piece, and a liquid outlet is formed in the bottom of the stirring box. The device has the beneficial effects that through the design of the connecting mechanism and the filtering mechanism, when a nanofiltration membrane in a current filtering structure cannot be used, the other group of nanofiltration membranes can be automatically switched to be matched with a purification device for use, and the used nanofiltration membranes can be switched to a cleaning station; the nanofiltration membrane and the filter cavity are replaced and cleaned by a mechanical arm or a cleaning worker, so that the cleaning and replacement of the nanofiltration membrane and the use of the purification equipment do not influence each other and are relatively independent, and finally, the purification device can be used without shutdown and can meet the use requirements of an automatic production line.

Description

Technical Field

[0001] The present invention relates to the technical field of lactose purification equipment, and in particular to a lactose production and purification device and a use method thereof. Background Art

[0002] Lactose only exists in the milk of mammals in nature. One lactose molecule can be digested into one glucose molecule and one galactose molecule. Galactose can promote the formation of cerebrosides and mucopolysaccharides, so it is very important for the intellectual development of young children. At the same time, lactose, as an important component of dairy products, can not only be used as a source of carbohydrates, but also meet the needs of modern consumers for a healthy low-sugar diet due to its low sweetness and natural properties. Therefore, high-purity lactose needs to be further purified. With the rapid development of industrial technology, the purification equipment for continuous production of high-purity lactose has also been improved.

[0003] However, in the prior art, the purification of crude lactose requires the use of nanofiltration membranes to filter and remove residual proteins and other colored impurities in the lactose mixture. However, the nanofiltration membrane cannot meet the filtration requirements after being used for a period of time and needs to be replaced. However, the replacement of the nanofiltration membrane is as follows: while pulling out the old nanofiltration membrane and replacing it with a new one, the cavity containing the nanofiltration membrane needs to be cleaned. This replacement process wastes a long time. During this period, the equipment cannot be used and is in a shutdown state, which seriously affects the operation of the production line. Therefore, a lactose production and purification device is needed that can replace the nanofiltration membrane without stopping the machine to ensure the operation of the automated production line.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] In view of the problems in the related art, the present invention proposes a lactose production and purification device and a method of use to overcome the above-mentioned technical problems existing in the existing related art.

[0006] To this end, the specific technical solution adopted by the present invention is as follows:

[0007] A lactose production and purification device comprises a support, wherein a stirring box is installed on one side of the support, a stirring motor is installed on the top of the stirring box, a bottom output end of the stirring motor penetrates into the interior of the stirring box and is connected to a stirring member, a liquid outlet is provided at the bottom of the stirring box, the bottom end of the liquid outlet is connected to a valve, the bottom end of the valve is connected to one end of an infusion pipe, a pump is provided on the infusion pipe, the other end of the infusion pipe is connected to an infusion pipe 2 installed on the top of the support, a three-way valve is provided in the middle of the infusion pipe 2, the two ends of the three-way valve are respectively connected to a return water tank and a delivery pipe, the return water tank is fixed to the top of the rear side of the support, the return water tank is connected to the stirring box through a return water hose, the end of the delivery pipe is connected to a connecting mechanism, the middle part of the connecting mechanism is connected to a filtering mechanism, the bottom end of the connecting mechanism is connected to a liquid outlet pipe, and the end of the liquid outlet pipe penetrates to the outside of the support and extends into a crystallization pool.

[0008] Preferably, the connecting mechanism includes two groups of mobile frames slidably connected to the inside of the bracket and a fixed shell installed on the inner wall of one side of the bracket, a group of docking ports are respectively installed on the upper and lower mobile frames, an infusion hose and a liquid outlet hose are respectively connected to the upper and lower docking ports, the infusion hose is connected to the delivery pipe, and the liquid outlet hose is connected to the liquid outlet pipe, a guide plate and a rack plate are respectively provided on the opposite sides of the upper and lower mobile frames, the inner middle part of the fixed shell is rotatably connected with a linkage gear, the upper and lower groups of guide plates and the rack plates respectively penetrate into the fixed shell from the upper and lower sides, the two rack plates are respectively meshed on the two sides of the linkage gear, the two guide plates are slidably connected to the inside of the fixed shell, a limiting component matching with the rack plate is provided on the mobile frame, and a pushing member matching with the limiting component is provided on the inner wall of the bracket.

[0009] Preferably, the limiting assembly includes an insertion slot provided on the movable frame, the insertion slot is connected with a groove provided on the outer surface of the other side of the movable frame through a receiving slot and a connecting slot on the side wall, a ramp block is slidably connected inside the receiving slot, a slot matching the ramp block is provided on the rack plate, a travel rod and a traction rope are provided on one side of the outer surface of the ramp block, an end of the traction rope passes through the connecting slot into the groove and is connected to a movable plate, the movable plate is movably connected to the inside of the groove, and a movable hole is provided on the movable plate.

[0010] Preferably, the pushing member is arranged in a cylinder on the inner wall of the bracket, the telescopic end of the cylinder is connected to the pushing block, a sliding plate is arranged on the outer surface of the pushing block, a sliding groove matching the sliding plate is arranged on the inner wall of the groove, a movable groove is arranged at the end of the pushing block, a pushing rod is installed on the inner wall of the movable groove, and the pushing rod is slidably connected to the inside of the movable hole.

[0011] Preferably, a guide groove is provided on the inner wall of the bracket, a slider is fixed to the end of the movable frame, the slider is slidably connected in the guide groove, a slide plate is provided on the outer surface of the inclined block, a groove matching the slide plate is provided on the inner wall of the accommodating groove, and a spring is provided between the inner wall of the groove and the outer surface of the slide plate.

[0012] Preferably, the filtering mechanism includes a fixed cover shell fixedly mounted on one side of the inner part of the bracket, the fixed cover shell is rotatably connected to the inner part of the fixed cover shell, a filter cartridge is fixed inside the annular part, a plurality of placement grooves are evenly opened on the top of the filter cartridge, a nanofiltration membrane is placed inside the placement groove, a plurality of supporting blocks are arranged on the inner bottom side wall of the placement groove, the bottom of the nanofiltration membrane is pressed on the supporting blocks, and the upper and lower docking ports respectively correspond to the upper and lower notches of the placement groove, the filtering mechanism also includes an inner tooth ring groove opened in the middle of the circumferential outer surface of the annular part and a rotating motor fixed on the bracket, the bottom output end of the rotating motor is connected to a rotating gear, the end of the rotating gear passes through the bracket to the fixed cover shell and meshes with the engaging teeth of the inner tooth ring groove.

[0013] Preferably, a group of limiting rods are provided on one side of the movable frame close to the filter cartridge, and a plurality of groups of limiting grooves cooperating with the limiting rods are provided in the middle of the outer surface of the end of the filter cartridge.

[0014] Preferably, a limit block cooperating with the movable plate is provided on the inner wall of the groove, a plurality of groups of splash shields cooperating with the placement groove are provided on the top of the filter cylinder, a heating chamber is opened in the inner wall of the mixing box, a heating plate is provided on the inner wall of the heating chamber, a filter screen is provided at the inner top of the liquid outlet, and the side of the filter screen is welded to the top of the liquid outlet.

[0015] Preferably, the stirring element includes a coupling and an agitator, the top end of the coupling is connected to the bottom output end of the stirring motor, the agitator includes a stirring shaft and cross stirring blades, the top end of the stirring shaft is connected to the bottom end of the coupling, and a plurality of cross stirring blades are staggered on the outer surface of the stirring shaft.

[0016] According to another aspect of the present invention, a method for using a lactose production and purification device is provided, which is used in the lactose production and purification device, comprising the following steps:

[0017] Pour crude lactose into the mixing box through the feed port, add purified water, and use the stirring motor to drive the stirrer to stir the materials inside the mixing box, so that the crude lactose and purified water are evenly mixed and quickly dissolved to form a lactose mixed liquid;

[0018] When the crude lactose in the mixing tank is dissolved, the valve is opened, and the lactose mixture in the mixing tank is pumped through the first and second infusion tubes to the nanofiltration membrane inside the filter cartridge for liquid filtration to remove residual protein and other colored impurities in the lactose mixture to form a pure lactose mixture;

[0019] The pure lactose mixture enters the liquid outlet pipe through the liquid outlet hose, and then enters the crystallization pool through the liquid outlet pipe. The liquid is cooled and crystallized in the crystallization pool. After filtration and crystallization, what is left is high-purity lactose.

[0020] The beneficial effects of the present invention are:

[0021] According to the present invention, the nanofiltration membrane currently in use needs to be replaced after filtering for a period of time. At this time, it is necessary to replace another group of nanofiltration membranes on the filter cartridge and connect them to the upper and lower docking ports to continue the filtering work. At this time, the cylinder is started, and the cylinder contracts to pull the push block to move. The push block moves through the push rod on the inner wall of the movable groove to squeeze the movable hole on the movable plate, thereby pulling the movable plate to rotate in the groove. While the movable plate rotates, the traction rope will be pulled. The traction rope will be pulled to pull the inclined surface block whose end passes through the plug-in groove to move, so that the inclined surface block moves to the inside of the accommodating groove, thereby releasing the inclined surface block from releasing the clamping limit of the rack plate. When the inclined surface block is completely received in the accommodating groove, the movable plate also rotates to the side of the limit block and is squeezed together with the limit block. Thereafter, the contraction and pulling of the cylinder will pull the two movable frames to move synchronously, and the movement of the two movable frames will drive the docking ports on the two to move, thereby realizing the synchronous separation of the docking port and the filter cartridge.

[0022] Through the design of the limiting component, when the upper and lower moving frames are butt-jointed with the filter cartridge, the upper and lower moving frames can be locked and connected together, and the two moving frames can be connected into a whole, thereby improving the stability of the device.

[0023] Through the design of the pushing member, the limit assembly can have a movable and adjustable space inside the moving frame under the premise of pushing the moving frame, and the pushing member can then simultaneously trigger the limit assembly to move under the premise of pushing the moving member to move.

[0024] Through the design of the filtering mechanism of the present invention, after the docking port moves and disengages from the filter cartridge, the rotating motor drives the rotating gear to rotate, and the rotating gear drives the annular member to rotate by engaging with the inner gear ring groove, and the annular member drives the filter cartridge to rotate, so that the unused placement slot on the filter cartridge rotates to a position docking with the docking port, thereby realizing automatic switching of the nanofiltration membrane in the placement slot.

[0025] The present invention can limit the movable frame through the design of the electric push rod and the limit piece, so that after the movable frame is matched with the filter cartridge, the end of the limit piece can be pushed by the electric push rod to be inserted into the slot at the end of the movable frame, thereby realizing a stable connection between the docking port and the filter cartridge.

[0026] The present invention adopts the design of the limiting rod and the limiting groove, so that when the movable frame is matched with the filter cartridge, the filter cartridge can be limited by the limiting rod and the limiting groove, so that the filter cartridge can be in a stable connection state.

[0027] The invention solves the problem of low heating and melting efficiency of crude lactose and reduced work efficiency through the design of a heating plate. Purified water and crude lactose are added to a feed inlet, and the heating plate is used for heating. A stirring motor drives a stirrer to rotate clockwise through a coupling to achieve rapid heating and melting. The rotation of a cross stirring blade drives the crude lactose and the purified water to be evenly mixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only 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.

[0029] Figure 1 is a schematic diagram of the overall structure of a lactose production and purification device according to an embodiment of the present invention;

[0030] Figure 2 is a partial structural schematic diagram of a lactose production and purification device according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of a filtering mechanism of a lactose production and purification device according to an embodiment of the present invention;

[0032] Figure 4 Schematic diagram of the connection mechanism structure of a lactose production and purification device according to an embodiment of the present invention Figure 1 ;

[0033] Figure 5 Schematic diagram of the connection mechanism structure of a lactose production and purification device according to an embodiment of the present invention Figure 2 ;

[0034] Figure 6 This is a schematic diagram of a partial structure of a connection mechanism of a lactose production and purification device according to an embodiment of the present invention;

[0035] Figure 7Schematic diagram of the structure of a limiting component of a lactose production and purification device according to an embodiment of the present invention Figure 1 ;

[0036] Figure 8 Schematic diagram of the structure of a limiting component of a lactose production and purification device according to an embodiment of the present invention Figure 2 ;

[0037] Fig. 9 Schematic diagram of the structure of a limiting component of a lactose production and purification device according to an embodiment of the present invention Figure 3 ;

[0038] Fig.10 This is a schematic diagram of the structure of a pusher of a lactose production and purification device according to an embodiment of the present invention;

[0039] Fig.11 The present invention is a flowchart of the steps of a method for using a lactose production and purification device according to an embodiment of the present invention.

[0040] In the figure:

[0041] 1. Bracket; 2. Mixing box; 3. Mixing motor; 4. Valve; 5. Infusion tube 1; 6. Infusion tube 2; 7. Cylinder; 8. Push block; 9. Sliding plate; 10. Movable groove; 11. Push rod; 12. Guide slide; 13. Mobile rack; 14. Docking port; 15. Infusion hose; 16. Liquid outlet hose; 17. Limit rod; 18. Liquid outlet pipe; 19. Crystallization pool; 20. Fixed cover; 21. Ring; 22. Inner gear ring groove; 23. Filter cartridge; 24. Placement groove; 25. Nanofiltration membrane; 26, limit groove; 27, rotating motor; 28, rotating gear; 29, plug-in groove; 30, groove; 31, accommodating groove; 32, connecting groove; 33, inclined block; 34, slide plate; 35, spring; 36, travel rod; 37, traction rope; 38, movable plate; 39, movable hole; 40, limit block; 41, fixed shell; 42, linkage gear; 43, guide plate; 44, rack plate; 45, three-way valve; 46, return tank; 47, return hose; 48, splash guard. DETAILED DESCRIPTION

[0042] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0043] According to an embodiment of the present invention, a lactose production and purification device and a method of using the same are provided.

[0044] Embodiment 1;

[0045] like Figure 1-10 As shown, the lactose production and purification device according to the embodiment of the present invention comprises a support 1, a stirring box 2 is installed on one side of the support 1, a heating chamber is opened in the inner wall of the stirring box 2, a heating plate is arranged on the inner wall of the heating chamber, and the design of the heating plate solves the problem of low heating and melting efficiency of crude lactose and reduced work efficiency, purified water and crude lactose are added to the feed inlet, heated by the heating plate, and the stirring motor drives the stirrer to rotate clockwise through the coupling to achieve rapid heating and melting, and then the rotation of the cross stirring blade drives the crude lactose and Purified water is mixed evenly, a stirring motor 3 is installed on the top of the stirring box 2, and the bottom output end of the stirring motor 3 penetrates into the interior of the stirring box 2 and is connected to the stirring member, a liquid outlet is provided at the bottom of the stirring box 2, a filter is provided at the top of the inner part of the liquid outlet, and the side of the filter is welded to the top of the liquid outlet, the bottom end of the liquid outlet is connected to a valve 4, and the bottom end of the valve 4 is connected to one end of an infusion tube 5, a pump is provided on the infusion tube 5, and the other end of the infusion tube 5 is connected to an infusion tube 2 installed on the top of the bracket 1. 6 is connected, a three-way valve 45 is provided in the middle of the infusion pipe 6, and the two ends of the three-way valve 45 are respectively connected with a return water tank 46 and a delivery pipe, the return water tank 46 is fixed on the top of the rear side of the bracket 1, and the return water tank 46 is connected with the stirring box 2 through a return water hose 47. The end of the delivery pipe is connected to the connecting mechanism, the middle of the connecting mechanism is connected to the filtering mechanism, and the bottom end of the connecting mechanism is connected to the liquid outlet pipe 18. The end of the liquid outlet pipe 18 penetrates the outside of the bracket 1 and extends into the crystallization pool 19; when a new nanostructured ... When the filter membrane 25 is docked with the docking port 14, at this time, the three-way valve 45 is started first, so that the liquid transported by the infusion tube 26 can stop being transported to the delivery pipe and be transported to the return water tank 46. The return water tank 46 transports the liquid to the mixing box 2 through the return water hose 47, forming a pipeline circulation. When the filter mechanism is rotated and adjusted to the new placement groove 24 and docked with the connecting mechanism, at this time, the pipeline between the three-way valve 45 and the delivery pipe is connected, and the liquid delivery work is continued, thereby satisfying the nanofiltration membrane 25 replacement action while realizing the non-stop operation of the device.

[0046] Embodiment 2:

[0047] like Figure 1 - Figure 2As shown, the connecting mechanism includes two groups of mobile frames 13 slidably connected to the inside of the bracket 1 and a fixed shell 41 installed on the inner wall of one side of the bracket 1, and a group of docking ports 14 are respectively installed on the upper and lower mobile frames 13, and the upper and lower docking ports 14 are respectively connected with an infusion hose 15 and a liquid outlet hose 16. The purpose of setting the hose is to ensure that the liquid delivery work is compatible with the moving action of the mobile frame 13. The infusion hose 15 is connected to the delivery pipe, and the liquid outlet hose 16 is connected to the liquid outlet pipe 18. A guide plate 43 and a rack plate 44 are provided on the opposite sides of the upper and lower mobile frames 13. The inner middle part of the fixed shell 41 is rotatably connected with a linkage gear 42. The upper and lower groups of the guide plates 43 and the rack plates 44 respectively penetrate into the fixed shell 41 from the upper and lower sides. The two The rack plates 44 are respectively meshed on both sides of the linkage gear 42. The rack plates and the gears are used in conjunction to ensure the consistency of the upper and lower movable frames 13 during vertical movement, and to ensure that the two can move synchronously. The two guide plates 43 are slidably connected to the interior of the fixed shell 41. The movable frame 13 is provided with a limit assembly that cooperates with the rack plates 44, and the inner wall of the bracket 1 is provided with a pusher that cooperates with the limit assembly. Through the design of the connecting mechanism, the nanofiltration membrane 25 currently in use needs to be replaced after a period of filtration. At this time, the limit assembly on the rack plate 44 is released, and then the two movable frames 13 are pulled to move synchronously by the pusher. The movement of the two movable frames 13 will drive the docking ports 14 on the two to move, thereby realizing the synchronous separation of the docking port 14 and the filter cartridge 23.

[0048] Embodiment three;

[0049] like Figure 4 - Fig.10As shown, the limiting assembly includes an insertion slot 29 provided on the mobile frame 13, and the insertion slot 29 is connected with the groove 30 provided on the outer surface of the other side of the mobile frame 13 through the receiving slot 31 and the connecting slot 32 on the side wall. The receiving slot 31 is slidably connected with an inclined block 33, and the rack plate 44 is provided with a slot matching the inclined block 33. Through the design of the inclined block 23 and the slot, when the rack plate 44 of the object is inserted into the receiving slot 31, when the slot moves to match the inclined block 23, the inclined block 23 can be automatically engaged in the receiving slot 31, forming a clamping fixation of the rack plate 44, so that the upper and lower mobile frames 13 with the docking port 14 dock with the filter cartridge 23. When the two are put together, the rack plates 44 on the two are also locked together, so that the two mobile frames 13 and the connecting mechanism are fixed together to form a stable structural system; a travel rod 36 and a traction rope 37 are provided on one side of the outer surface of the inclined surface block 33, and the end of the traction rope 37 passes through the connecting groove 32 into the groove 30 and is connected to the movable plate 38. A limit block 40 matching the movable plate 38 is provided on the inner wall of the groove 30, and the rotation range of the movable plate 38 is limited by the setting of the limit block 40. The movable plate 38 is movably connected to the inside of the groove 30, and a movable hole 39 is opened on the movable plate 38. The pushing member is provided on the cylinder 7 on the inner wall of the bracket 1, and the telescopic end of the cylinder 7 is connected to the pushing member. The push block 8 is connected, a sliding plate 9 is arranged on the outer surface of the push block 8, a sliding groove matched with the sliding plate 9 is arranged on the inner wall of the groove 30, a movable groove 10 is arranged at the end of the push block 8, a push rod 11 is installed on the inner wall of the movable groove 10, the push rod 11 is slidably connected to the inside of the movable hole 39, and the setting of the push rod 11 and the movable hole 39 makes the linear movement of the push block 8 and the rotational movement of the movable plate 38 match; through the design of the connecting mechanism, the nanofiltration membrane 25 currently in use needs to be replaced after a period of filtration. At this time, it is necessary to replace another set of nanofiltration membranes 25 on the filter cartridge 23 and connect them to the upper and lower docking ports 14 to continue the filtration work. At this time, start The cylinder 7 is moved, and the cylinder 7 contracts to pull the push block 8 to move. The push block 8 moves through the push rod 11 on the inner wall of the movable groove 10 to squeeze the movable hole 39 on the movable plate 38, thereby pulling the movable plate 38 to rotate in the groove 30. The movable plate 38 will pull the traction rope 37 while rotating. The traction rope 37 will be pulled to pull the inclined surface block 33 whose end passes through the plug-in groove 29 to move, so that the inclined surface block 33 moves to the inside of the accommodating groove 31, and then the inclined surface block 33 is released to release the clamping limit of the rack plate 44. When the inclined surface block 33 is completely received in the accommodating groove 31, the movable plate 38 also rotates to the side of the limit block 40 and is squeezed together with the limit block 40. Thereafter, the contraction and pulling of the cylinder 7 will pull the movable frame 13 to move synchronously.

[0050] Embodiment 4:

[0051] like Figure 2 - Figure 3 and Figure 7 - Figure 8 As shown, a guide slot 12 is provided on the inner wall of the bracket 1, a slider is fixed at the end of the mobile frame 13, and the slider is slidably connected in the guide slot 12. The design of the guide slot 12 and the slider improves the stability of the movement of the mobile frame 13. The outer surface of the inclined surface block 33 is provided with a slide plate 34. The inner wall of the accommodating groove 31 is provided with a slot matching the slide plate 34. A spring 35 is provided between the inner wall of the slot and the outer surface of the slide plate 34. The design of the guide slot and the slide plate 34 improves the stability of the inclined surface block 33. The stability of movement, and the setting of the spring 35 can provide power for the reset movement of the inclined block 33. A group of limiting rods 17 are provided on the side of the movable frame 13 close to the filter cartridge 23, and a plurality of limiting grooves 26 matching with the limiting rods 17 are provided in the middle of the outer surface of the end of the filter cartridge 23; through the design of the limiting rods 17 and the limiting grooves 26, when the movable frame 13 is matched with the filter cartridge 23, the filter cartridge 23 can be limited by the limiting rods 17 and the limiting grooves 26, so that the filter cartridge 23 can be in a stable connection state.

[0052] Embodiment five;

[0053] like Figure 2 - Figure 3As shown, the filtering mechanism includes a fixed cover shell 20 fixedly mounted on one side of the inner part of the bracket 1, and the inner part of the fixed cover shell 20 is rotatably connected with an annular member 21, and a filter cartridge 23 is fixed inside the annular member 21, and the top of the filter cartridge 23 is provided with a plurality of groups of splash shields 48 matched with the placement grooves 24. Through the design of the splash shield 48, when the upper docking port 14 is separated from the filter cartridge 23, a small amount of liquid retained in the docking port 14 will not splash into the isolated and unused placement grooves 24 when it falls downward. At the same time, the height of the splash shield 48 is not limited to that shown in the drawings of the specification, but is adjusted and adapted according to the specific needs of use, the purpose is to ensure that the placement groove 24 with the docking port 14 is independently isolated from other placement grooves 24 to avoid pollution interference. At the same time, the gap between the two splash shields 24 is also adapted to the width of the mobile frame 13, and does not affect the vertical movement of the mobile frame 13 at all; the top of the filter cartridge 23 is evenly provided with a plurality of placement grooves 24, and the placement grooves 24 are placed inside A nanofiltration membrane 25 is placed, and the inner bottom side wall of the placement groove 24 is provided with a plurality of supporting blocks, the bottom of the nanofiltration membrane 25 is pressed on the supporting block, and the upper and lower docking ports 14 correspond to the upper and lower notches of the placement groove 24 respectively. The filtering mechanism also includes an inner tooth ring groove 22 opened in the middle of the circumferential outer surface of the annular member 21 and a rotating motor 27 fixed to the bracket 1, and the bottom output end of the rotating motor 27 is connected to a rotating gear 28, and the end of the rotating gear 28 passes through the The bracket 1 is meshed with the meshing teeth of the inner gear ring groove 22 in the fixed cover shell 20; through the design of the filtering mechanism, after the docking port 14 moves and disengages from the filter cartridge 23, the rotating motor 27 drives the rotating gear 28 to rotate, and the rotating gear 28 drives the annular member 21 to rotate by meshing with the inner gear ring groove 22, and the annular member 21 drives the filter cartridge 23 to rotate, so that the unused placement slot 24 on the filter cartridge 23 rotates to the position docking with the docking port 14, thereby realizing the automatic switching of the nanofiltration membrane 25 in the placement slot 24.

[0054] Embodiment six;

[0055] A heating chamber (not shown in the figure) is provided in the inner wall of the stirring box 2, a heating plate (not shown in the figure) is provided on the inner wall of the heating chamber, the stirring member comprises a coupling and a stirrer (not shown in the figure), the top end of the coupling is connected to the bottom output end of the stirring motor 3, the stirrer comprises a stirring shaft and a cross stirring blade, the top end of the stirring shaft is connected to the bottom end of the coupling, and a plurality of the cross stirring blades are staggered on the outer surface of the stirring shaft; the design of the heating plate solves the problem of low heating and melting efficiency of crude lactose and reduced work efficiency, and the feeding Purified water and crude lactose are added into the liquid outlet, which are heated by the heating plate. The stirring motor 3 drives the stirrer to rotate clockwise through the coupling to achieve rapid heating and melting, and then the rotation of the cross stirring blade drives the crude lactose and the purified water to be evenly mixed; a filter screen is provided at the inner top of the liquid outlet, and the side of the filter screen is welded to the top of the liquid outlet; through the design of the filter screen, the undissolved crude lactose can be effectively blocked from entering the liquid outlet; the above-mentioned heating chamber, heating plate, stirring member, liquid outlet, filter screen, etc. are all existing technologies in this field, so there is no need to elaborate on them.

[0056] Embodiment seven:

[0057] like Figure 1-11 As shown, according to an embodiment of the present invention, a method for using a lactose production and purification device is also provided, which is used in a lactose production and purification device, and comprises the following steps:

[0058] Step S101, pouring crude lactose into the stirring box 2 through the feed inlet, adding purified water, and driving the stirrer through the stirring motor 3 to stir the materials inside the stirring box 2, so that the crude lactose and the purified water are evenly mixed and quickly dissolved to form a lactose mixed liquid;

[0059] Step S103, when the crude lactose in the mixing tank 2 is dissolved, the valve 4 is opened, and the lactose mixture in the mixing tank 2 is pumped through the infusion tube 1 5 and the infusion tube 2 6 to the nanofiltration membrane 25 inside the filter cartridge 23 for liquid filtration, so as to remove residual protein and other colored impurities in the lactose mixture and form a pure lactose mixture;

[0060] Step S105, the pure lactose mixture enters the liquid outlet pipe 18 through the liquid outlet hose 16, and enters the crystallization pool 19 through the liquid outlet pipe 18. The liquid is cooled and crystallized in the crystallization pool 19. After filtration and crystallization, what remains is high-purity lactose.

[0061] Before use, first connect the external power cord to the power supply and close the valve 4. When in use, pour the crude lactose into the mixing box through the feed port. A filter is provided in the liquid outlet to effectively prevent the undissolved crude lactose from entering the liquid outlet. Then add purified water to the feed port, then press the stirring switch and the heating switch, the heating plate starts to heat, and the maximum temperature is 70 degrees Celsius. Then the stirring motor 3 drives the stirrer to rotate clockwise through the coupling. The stirrer is provided with a cross stirring blade to rotate, so that the crude lactose and the purified water are evenly mixed and the dissolution speed is accelerated. When the crude lactose is dissolved, the valve 4 is opened, and the pump is started by the pump switch. The liquid enters the infusion tube 1 5 from the liquid outlet, and then enters the infusion tube 2 6 from the infusion tube 1 5, and is transported to the placement tank 24 by the infusion hose 15, and is filtered through the nanofiltration membrane 25 to remove the residual protein and other colored impurities in the lactose. The filtered liquid enters the liquid outlet pipe 18 through the liquid outlet hose 16, and enters the crystallization pool 19 through the liquid outlet pipe 18. The liquid is cooled and crystallized in the crystallization pool 19. After filtration and crystallization, what is left is high-purity lactose.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lactose production and purification device, characterized in that: The invention comprises a support (1), a stirring box (2) is installed on one side of the support (1), a stirring motor (3) is installed on the top of the stirring box (2), the bottom output end of the stirring motor (3) penetrates into the inside of the stirring box (2) and is connected to a stirring member, a liquid outlet is provided at the bottom of the stirring box (2), the bottom end of the liquid outlet is connected to a valve (4), the bottom end of the valve (4) is connected to one end of an infusion tube (5), a pump is provided on the infusion tube (5), the other end of the infusion tube (5) is connected to an infusion tube (6) installed on the top of the support (1), and the infusion tube (5) is connected to a liquid infusion tube (6) installed on the top of the support (1). A three-way valve (45) is provided in the middle of the second infusion pipe (6), and the two ends of the three-way valve (45) are respectively connected to a return water tank (46) and a delivery pipe. The return water tank (46) is fixed to the top of the rear side of the support (1), and the return water tank (46) is connected to the stirring tank (2) through a return water hose (47). The end of the delivery pipe is connected to a connecting mechanism, the middle of the connecting mechanism is connected to a filtering mechanism, and the bottom end of the connecting mechanism is connected to a liquid outlet pipe (18). The end of the liquid outlet pipe (18) passes through the outside of the support (1) and extends into the crystallization pool (19).

2. A lactose production and purification device according to claim 1, characterized in that: The connection mechanism comprises two groups of movable frames (13) slidably connected to the inside of the bracket (1) and a fixed shell (41) installed on the inner wall of one side of the bracket (1); a group of docking ports (14) are respectively installed on the upper and lower movable frames (13); an infusion hose (15) and a liquid outlet hose (16) are respectively connected to the upper and lower docking ports (14); the infusion hose (15) is connected to the delivery pipe, and the liquid outlet hose (16) is connected to the liquid outlet pipe (18); a guide plate (43) is provided on opposite sides of the upper and lower movable frames (13). and a rack plate (44), the inner middle part of the fixed shell (41) is rotatably connected with a linkage gear (42), the upper and lower groups of the guide plates (43) and the rack plate (44) respectively penetrate into the fixed shell (41) from the upper and lower sides, the two rack plates (44) are respectively engaged with the two sides of the linkage gear (42), the two guide plates (43) are slidably connected to the inside of the fixed shell (41), the movable frame (13) is provided with a limit assembly matched with the rack plate (44), and the inner wall of the bracket (1) is provided with a pusher matched with the limit assembly.

3. A lactose production and purification device according to claim 1, characterized in that: The limiting assembly comprises a plug-in slot (29) provided on the movable frame (13); the plug-in slot (29) is connected to a groove (30) provided on the outer surface of the other side of the movable frame (13) through a receiving slot (31) and a connecting slot (32) on a side wall; a bevel block (33) is slidably connected inside the receiving slot (31); a slot matching the bevel block (33) is provided on the rack plate (44); a travel rod (36) and a traction rope (37) are provided on one side of the outer surface of the bevel block (33); an end of the traction rope (37) passes through the connecting slot (32) into the groove (30) and is connected to a movable plate (38); the movable plate (38) is movably connected inside the groove (30); and a movable hole (39) is provided on the movable plate (38).

4. A lactose production and purification device according to claim 1, characterized in that: The pushing member is arranged on a cylinder (7) on the inner wall of the bracket (1), the telescopic end of the cylinder (7) is connected to a pushing block (8), a sliding plate (9) is arranged on the outer surface of the pushing block (8), a sliding groove matching with the sliding plate (9) is arranged on the inner wall of the groove (30), a movable groove (10) is arranged at the end of the pushing block (8), a pushing rod (11) is installed on the inner wall of the movable groove (10), and the pushing rod (11) is slidably connected to the inside of the movable hole (39).

5. A lactose production and purification device according to claim 4, characterized in that: A guide slot (12) is provided on the inner wall of the bracket (1), a slider is fixed at the end of the movable frame (13), and the slider is slidably connected in the guide slot (12), a slide plate (34) is provided on the outer surface of the inclined surface block (33), a slot matching the slide plate (34) is provided on the inner wall of the accommodating groove (31), and a spring (35) is provided between the inner wall of the slot and the outer surface of the slide plate (34).

6. A lactose production and purification device according to claim 5, characterized in that: The filtering mechanism comprises a fixed cover (20) fixedly mounted on one side of the interior of the bracket (1); a ring member (21) is rotatably connected to the interior of the fixed cover (20); a filter cartridge (23) is fixed inside the ring member (21); a plurality of placement grooves (24) are evenly arranged on the top of the filter cartridge (23); a nanofiltration membrane (25) is placed inside the placement grooves (24); a plurality of supporting blocks are arranged on the inner bottom side walls of the placement grooves (24); the bottom of the nanofiltration membrane (25) is pressed on the supporting blocks. The upper and lower docking ports (14) correspond to the upper and lower notches of the placement groove (24) respectively. The filtering mechanism also includes an inner tooth ring groove (22) provided in the middle of the circumferential outer surface of the annular member (21) and a rotating motor (27) fixed to the bracket (1). The bottom output end of the rotating motor (27) is connected to a rotating gear (28). The end of the rotating gear (28) passes through the bracket (1) to the fixed cover (20) and meshes with the meshing teeth of the inner tooth ring groove (22).

7. A lactose production and purification device according to claim 6, characterized in that: A group of limiting rods (17) are provided on one side of the movable frame (13) close to the filter cartridge (23), and a plurality of groups of limiting grooves (26) matching with the limiting rods (17) are provided in the middle of the outer surface of the end of the filter cartridge (23).

8. A lactose production and purification device according to claim 7, characterized in that: A stop block (40) cooperating with the movable plate (38) is provided on the inner wall of the groove (30), a plurality of splash shields (48) cooperating with the placement groove (24) are provided on the top of the filter cylinder (23), a heating chamber is provided in the inner wall of the mixing box (2), a heating plate is provided on the inner wall of the heating chamber, a filter screen is provided at the inner top end of the liquid outlet, and the side of the filter screen is welded to the top end of the liquid outlet.

9. A lactose production and purification device according to claim 8, characterized in that: The stirring member comprises a coupling and an agitator, wherein the top end of the coupling is connected to the bottom output end of the stirring motor (3), and the agitator comprises a stirring shaft and cross stirring blades, wherein the top end of the stirring shaft is connected to the bottom end of the coupling, and a plurality of cross stirring blades are staggered on the outer surface of the stirring shaft.

10. A method for using a lactose production and purification device, characterized in that: The lactose production and purification device according to claim 9 comprises the following steps: Pour crude lactose into a stirring box (2) through a feed inlet, add purified water, and drive a stirrer through a stirring motor (3) to stir the materials in the stirring box (2) so that the crude lactose and purified water are evenly mixed and quickly dissolved to form a lactose mixed liquid; When the crude lactose in the mixing tank (2) is dissolved, the valve (4) is opened, and the lactose mixture in the mixing tank (2) is pumped through the infusion tube 1 (5) and the infusion tube 2 (6) to the nanofiltration membrane (25) inside the filter cartridge (23) for liquid filtration to remove residual protein and other colored impurities in the lactose mixture, thereby forming a pure lactose mixture; The pure lactose mixed liquid enters the liquid outlet pipe (18) through the liquid outlet hose (16), and enters the crystallization pool (19) through the liquid outlet pipe (18). The liquid is cooled and crystallized in the crystallization pool (19). After filtration and crystallization, what remains is high-purity lactose.

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