Sugarcane plant water production device and method based on membrane separation technology

Abstract

The invention relates to the technical field of sugarcane sugar separation, in particular to a sugarcane plant water production device and method based on a membrane separation technology, the production device further comprises a reverse osmosis membrane filter, a first secondary ultrafiltration box, a second secondary ultrafiltration box, a primary filtration concentration system and an evaporation assembly, the reverse osmosis membrane filter, the first secondary ultrafiltration box and the second secondary ultrafiltration box are all arranged on the mounting table, the reverse osmosis membrane filter is communicated with the first secondary ultrafiltration box, and the first secondary ultrafiltration box is communicated with the clear water recycling box; the primary filtration and concentration system is arranged on the mounting table and is communicated with the feeding funnel and the second secondary ultrafiltration box; the evaporation assembly is arranged on the supporting frame and is used for communicating the clear water recycling box with the second secondary ultrafiltration box; through mutual cooperation of extrusion force and the nanofiltration membrane, nanofiltration clear liquid and nanofiltration concentrated liquid are obtained, the purity of sucrose concentrated juice finally entering the evaporation box is improved, and the purity of finally produced solid sugar is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sugarcane sugar separation, and more specifically to a sugarcane plant water production device and method based on membrane separation technology. Background Art

[0002] Sugarcane is a major agricultural product processing raw material, which is mainly purchased and processed by sugarcane sugar companies. The maturity period of sugarcane is roughly one year, which leads to a fixed season for the production of sugar companies. Sugarcane plant water is equivalent to a by-product of the sugarcane sugar production process. Relying on sugarcane sugar companies to produce sugarcane plant water can not only enrich the raw materials, but also save the raw material procurement link and reduce the cost of raw materials. The only disadvantage is the short production cycle and large product inventory.

[0003] With the advancement of science and technology, there are more and more water recycling equipment. At present, in order to separate water and solid sugar from sucrose, a membrane separation technology has been developed to maximize the separation of water in sugarcane. However, the existing membrane separation technology has the following shortcomings:

[0004] Existing equipment that uses membrane separation technology to separate plant water from sugarcane is large and complex. After ceramic membranes, nanofiltration membranes and reverse osmosis membranes work together, the degree of correlation between the equipment is low and the cost is high, resulting in a reduced recycling value of the plant water. Summary of the invention

[0005] The object of the present invention is to provide a sugarcane plant water production device based on membrane separation technology to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A sugarcane plant water production device based on membrane separation technology, comprising a support frame, a clean water recovery box, a control console, a feed funnel, a mounting platform and a mounting frame, wherein the mounting platform is arranged on the support frame, the clean water recovery box is arranged on the support frame, the control console is arranged on the clean water recovery box, the feed funnel is arranged on the mounting platform through the mounting frame, the production device also comprises a reverse osmosis membrane filter, a first and second ultrafiltration box, a second and second ultrafiltration box, a primary filtration concentration system and an evaporation component, the reverse osmosis membrane filter, the first and second ultrafiltration box and the second and second ultrafiltration box are all arranged on the mounting platform, the reverse osmosis membrane filter is connected to the first and second ultrafiltration box, the first and second ultrafiltration box is connected to the clean water recovery box, the primary filtration concentration system is arranged on the mounting platform and is connected to the feed funnel and the second and second ultrafiltration box, and is used for performing primary filtration and concentration treatment on coarsely filtered sucrose water to obtain nanofiltration concentrate and nanofiltration clear liquid, a control valve is arranged between the feed funnel and the primary filtration concentration system, the evaporation component is arranged on the support frame and connects the clean water recovery box and the second and second ultrafiltration box, and is used for receiving the nanofiltration concentrate and performing evaporation and crystallization treatment;

[0008] The primary filtration and concentration system includes a primary filtration component and a concentration and separation component. The primary filtration component is arranged on a mounting platform and connected to a feed funnel, and is used to perform preliminary ceramic membrane ultrafiltration separation treatment on the coarsely filtered sucrose water. The concentration and separation component is arranged on a mounting platform and connects the primary filtration component to a second-level ultrafiltration box, and is used to receive the sucrose water after the primary filtration and perform nanofiltration membrane concentration and separation treatment.

[0009] A further technical solution of the present application: the primary filtration component includes a fixed seat, two first-level ultrafiltration half barrels and a first-level ceramic membrane filtration structure, the fixed seat is arranged on a mounting table, the two first-level ultrafiltration half barrels are symmetrically arranged on the fixed seat and constitute a first-level ultrafiltration barrel, a plurality of input holes are equidistantly arranged on the first-level ultrafiltration half barrel, the input holes are connected to a feed funnel, the first-level ultrafiltration half barrel is provided with an output hole on the opposite side of the input hole, the first-level ceramic membrane filtration structure is arranged in the first-level ultrafiltration barrel and connected to the concentration and separation component, and when the concentration and separation component is working, it controls the operation of the first-level ceramic membrane filtration structure and performs filtering treatment on the coarsely filtered sucrose water.

[0010] A further technical solution of the present application is as follows: the first-level ceramic membrane filtration structure includes a rotating shaft, a filter frame, a ceramic membrane and a sealing unit; the rotating shaft is movably arranged in two first-level ultrafiltration half barrels and is connected to the concentration and separation assembly; there are several filter frames and they are arranged on the outer wall of the rotating shaft; a ceramic membrane is arranged in each filter frame; the sealing unit is arranged between the filter frame and the first-level ultrafiltration half barrel and is used to seal one side of the filter frame.

[0011] A further technical solution of the present application is as follows: the sealing unit comprises a sealing cover, a transmission gear and a second half gear, the second half gear is arranged on the first-stage ultrafiltration half barrel and is arranged concentrically with the rotating shaft, a sealing cover is hinged on one side of each filter frame close to the rotating shaft, a torsion spring is arranged at the hinge of the sealing cover, and transmission gears are symmetrically and movably arranged on the filter frame, wherein the transmission gears on the two relatively arranged filter frames are meshed with the second half gears, and the transmission gear and the sealing cover are coaxially connected.

[0012] The present application has a further technical solution: the concentration and separation component includes a driving structure and an execution structure, the execution structure is arranged on the mounting platform and connects the output hole with the second-stage ultrafiltration box, and is used to perform nanofiltration membrane concentration and separation work on sucrose water, the execution structure is connected with the reverse osmosis membrane filter, the driving structure is arranged on the mounting platform and connected with the execution structure and the rotating shaft, and the driving structure controls the rotation of the rotating shaft and the operation of the execution structure when working.

[0013] The present application has a further technical solution: the driving structure includes a linear motor, a driving seat and a transmission member, the driving seat is movably arranged on the fixed seat, and a slide groove is formed on the driving seat for sliding cooperation with the fixed seat, the linear motor is arranged on the mounting platform and its movable end is connected to the driving seat, the driving seat is connected to the execution structure, and the driving seat controls the operation of the execution structure when it moves, and the transmission member is arranged between the driving seat and the rotating shaft, and the driving seat also controls the rotation of the rotating shaft through the transmission member when it moves.

[0014] The present application has a further technical solution: the transmission member includes a first half gear, a driving groove and teeth, the first half gear is movably arranged on the first-stage ultrafiltration half barrel and is coaxially connected to the rotating shaft, the driving groove is arranged on the driving seat, the first half gear is arranged on the inner side of the driving groove, and a plurality of teeth are symmetrically and equidistantly arranged on the inner wall of the driving groove with the first half gear as the center, and a plurality of teeth on one side are meshed with the first half gear.

[0015] A further technical solution of the present application is as follows: the execution structure includes a concentration filter box, an extrusion plate, a plug rod, an elastic member and a nanofiltration membrane; the concentration filter box is arranged on a mounting table; the concentration filter box is provided with a liquid inlet window connected to the first-stage ultrafiltration half barrel; the concentration filter box is provided with a drain port connected to the reverse osmosis membrane filter; the extrusion plate is movably arranged in the concentration filter box and divides the concentration filter box into a first cavity and a second cavity; the nanofiltration membrane is arranged in the second cavity; the concentration filter box is provided with a concentrate discharge port connected to the second cavity; the concentrate discharge port is connected to the second-stage ultrafiltration box; solenoid valves are provided in the concentrate discharge port and the drain port; the plug rod is movably arranged on the concentration filter box and the two are connected by an elastic member; one end of the plug rod is connected to the extrusion plate, and the other end is connected to the drive seat.

[0016] The present application further provides for a technical solution: the evaporation assembly comprises an evaporation barrel, a top cover, a receiving hole, an intermediate box, a heating base, a sleeve box, an air inlet pipe and two semi-ring tubes, the evaporation barrel being arranged on a support frame, the top cover being arranged on the upper side of the evaporation barrel, the top cover being provided with a plurality of receiving holes connected with the second secondary ultrafiltration box, the intermediate box being arranged in the evaporation barrel, the evaporation barrel being provided with a conical condensation ring plate, the heating base being detachably arranged on the lower side of the evaporation barrel, the evaporation barrel being provided with a plurality of drainage windows, the drainage windows and the conical condensation ring plate being at the same vertical height, the evaporation barrel being sleeved with a sleeve box, the sleeve box being connected with the drainage windows and the clean water recovery box, a group of the semi-ring tubes being symmetrically arranged on the evaporation barrel and between the top cover and the conical condensation ring plate, the air inlet pipe being arranged on one of the semi-ring tubes and the two being connected, and the air inlet pipe being connected with the first cavity.

[0017] A method for producing sugarcane plant water based on membrane separation technology is applied to the production device described in the above technical solution. The specific steps of the production method are as follows:

[0018] S100: pour the coarsely filtered sucrose water into the feed funnel, and control the control valve to open at a fixed time through the control console, so that the coarsely filtered sucrose water in the feed funnel is intermittently injected into the primary filtration component;

[0019] S200: The control console controls the concentration and separation components to work synchronously, and can control the primary filtration components to work preliminarily on the coarse sucrose water. The sucrose water obtained after the primary filtration process is input into the concentration and separation components;

[0020] S300: When the concentration and separation component is working, the sucrose water obtained by the primary filtration can be concentrated and separated to obtain nanofiltration clear liquid and nanofiltration concentrated liquid. The nanofiltration clear liquid enters the reverse osmosis membrane filter and the first and second ultrafiltration boxes in turn to obtain clean water and is discharged into the clean water recovery box. The nanofiltration concentrated liquid is processed in the second and second ultrafiltration boxes to obtain sucrose concentrated juice which is discharged into the evaporation component.

[0021] S400: After receiving the sucrose concentrate, the evaporation component heats the sucrose concentrate. After evaporation and crystallization, clean water can be discharged into a clean water recovery tank, and the crystallized solid sugar can be left in the evaporation component.

[0022] Compared with the prior art, the technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0023] The embodiment of the present invention sets a primary ceramic membrane filtration structure, an execution structure and a driving structure, and utilizes a mechanical linkage structure. In the process of controlling the operation of the driving structure through a console, on the one hand, the primary ceramic membrane filtration structure can be controlled to work. The primary ceramic membrane filtration structure not only has the function of replacing the ceramic membrane to ensure that the effect of each filtration treatment is the same, but also improves the filtration effect of the coarsely filtered sucrose water, and can also realize the self-cleaning of the ceramic membrane to avoid clogging of the ceramic membrane and affect the filtration effect. On the other hand, the execution structure can be controlled to receive the sucrose water after the primary filtration, and obtain nanofiltration clear liquid and nanofiltration concentrated liquid through the mutual cooperation of the extrusion force and the nanofiltration membrane, thereby improving the purity of the sucrose concentrated juice finally entering the evaporation box, improving the purity of the solid sugar finally produced, and also improving the utilization rate of water. The linkage structure can increase the degree of correlation between the various modules of the entire device, making it more cost-effective to use membrane technology to separate plant water in sugarcane. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of a sugarcane plant water production device based on membrane separation technology in an embodiment of the present invention;

[0025] Figure 2 It is a structural schematic diagram of a primary filtration and concentration system in a sugarcane plant water production device based on membrane separation technology in an embodiment of the present invention;

[0026] Figure 3 It is a schematic structural diagram of a primary filtration component in a sugarcane plant water production device based on membrane separation technology in an embodiment of the present invention;

[0027] Figure 4 An exploded view of a sugarcane plant water production device based on membrane separation technology and an ultrafiltration half barrel in an embodiment of the present invention;

[0028] Figure 5 It is a structural schematic diagram of a primary ceramic membrane filtration structure in a sugarcane plant water production device based on membrane separation technology in an embodiment of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the concentration and separation components in the sugarcane plant water production device based on the membrane separation technology in an embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the internal structure of a concentration filter box in a sugarcane plant water production device based on membrane separation technology in an embodiment of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the evaporation component in the sugarcane plant water production device based on membrane separation technology in an embodiment of the present invention.

[0032] Explanation of the symbols in the schematic diagram:

[0033] 1-support frame, 2-clean water recovery tank, 3-control console, 4-feed funnel, 5-mounting frame, 6-mounting table, 7-first-stage ultrafiltration half barrel, 8-control valve, 9-first half gear, 10-fixed seat, 11-rotating shaft, 12-filter frame, 13-ceramic membrane, 14-sealing cover, 15-second half gear, 16-transmission gear, 17-linear motor, 18-drive seat, 19-slide, 20-spring, 21-plug rod, 22-concentration filter box, 23- Drain port, 24-nanofiltration membrane, 25-extrusion plate, 26-second cavity, 27-first cavity, 28-concentrate discharge port, 29-reverse osmosis membrane filter, 30-first and second ultrafiltration boxes, 31-evaporation barrel, 32-heating base, 33-inlet pipe, 34-semi-ring pipe, 35-liquid inlet window, 36-top cover, 37-receiving hole, 38-second and second ultrafiltration boxes, 39-intermediate box, 40-conical condensation ring plate, 41-drain window, 42-casing box. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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. The present invention is further described below in combination with the embodiments.

[0035] See also Figure 1-Figure 8 In one embodiment of the present application, a sugarcane plant water production device based on membrane separation technology includes a support frame 1, a clean water recovery box 2, a control console 3, a feed funnel 4, a mounting platform 6 and a mounting frame 5, wherein the mounting platform 6 is arranged on the support frame 1, the clean water recovery box 2 is arranged on the support frame 1, the control console 3 is arranged on the clean water recovery box 2, the feed funnel 4 is arranged on the mounting platform 6 through the mounting frame 5, and the production device also includes a reverse osmosis membrane filter 29, a first and second ultrafiltration box 30, a second and second ultrafiltration box 38, a primary filtration concentration system and an evaporation component, the reverse osmosis membrane filter 29, the first and second ultrafiltration boxes 30 and the second and second ultrafiltration boxes 38 are all arranged on the mounting platform 6, the reverse osmosis membrane filter 29 is connected to the first and second ultrafiltration boxes 30, the first and second ultrafiltration boxes 30 are connected to the clean water recovery box 2, the primary filtration concentration system is arranged on the mounting platform 6 and is connected to the feed funnel 4 and the second and second ultrafiltration boxes 38, and is used to perform primary filtration and concentration treatment on the coarsely filtered sucrose water to obtain nanofiltration concentrate and nanofiltration clear liquid, a control valve 8 is arranged between the feed funnel 4 and the primary filtration concentration system, the evaporation component is arranged on the support frame 1 and connects the clean water recovery box 2 and the second and second ultrafiltration boxes 38, and is used to receive the nanofiltration concentrate and perform evaporation and crystallization treatment;

[0036] The primary filtration and concentration system includes a primary filtration component and a concentration and separation component. The primary filtration component is arranged on the mounting platform 6 and is connected to the feed funnel 4, and is used to perform preliminary ceramic membrane 13 ultrafiltration separation treatment on the coarse filtered sucrose water. The concentration and separation component is arranged on the mounting platform 6 and connects the primary filtration component with the second-level ultrafiltration box 38, and is used to receive the sucrose water after the primary filtration and perform nanofiltration membrane 24 concentration and separation treatment.

[0037] In the present exemplary embodiment, the primary filtration component includes a fixed seat 10, two first-level ultrafiltration half barrels 7 and a first-level ceramic membrane filtration structure, the fixed seat 10 is arranged on the mounting table 6, the two first-level ultrafiltration half barrels 7 are symmetrically arranged on the fixed seat 10 and constitute a first-level ultrafiltration barrel, the first-level ultrafiltration half barrel 7 is provided with a plurality of input holes equidistantly arranged, the input holes are connected to the feed funnel 4, the first-level ultrafiltration half barrel 7 is provided with an output hole on the opposite side of the input hole, the first-level ceramic membrane filtration structure is arranged in the first-level ultrafiltration barrel and is connected to the concentration and separation component, and when the concentration and separation component is working, it controls the operation of the first-level ceramic membrane filtration structure and performs filtering treatment on the coarsely filtered sucrose water.

[0038] In actual application, the coarsely filtered sucrose water is poured into the feed funnel 4, and the control valve 8 is opened regularly by the control console 3, so that the coarsely filtered sucrose water in the feed funnel 4 is intermittently injected into the first-level ultrafiltration barrel; the concentration and separation component is controlled by the control console 3 to work, and the first-level ceramic membrane filtration structure can be controlled to work synchronously, and the coarsely filtered sucrose water can be preliminarily filtered. The sucrose water obtained after the primary filtration treatment is input into the concentration and separation component; when the concentration and separation component is working, the sucrose water obtained by the initial filtration can be concentrated and separated to obtain nanofiltration clear liquid and nanofiltration concentrated liquid, and the nanofiltration clear liquid enters the reverse osmosis membrane filter 29 and the first and second ultrafiltration boxes 30 in turn to obtain clean water and is discharged into the clean water recovery box 2, and the nanofiltration concentrated liquid is processed in the second and second ultrafiltration boxes 38 to obtain sucrose concentrated juice, which is discharged into the evaporation component; after receiving the sucrose concentrated juice, the evaporation component heats the sucrose concentrated juice, and after evaporation and crystallization processing, the clean water can be discharged into the clean water recovery box 2, and the solid sugar obtained by crystallization can be left in the evaporation component.

[0039] See also Figure 1-Figure 8 As another preferred embodiment of the present application, the primary ceramic membrane filtration structure includes a rotating shaft 11, a filter frame 12, a ceramic membrane 13 and a sealing unit. The rotating shaft 11 is movably arranged in two primary ultrafiltration half barrels 7 and the rotating shaft 11 is connected to the concentration and separation component. The number of the filter frames 12 is several and they are arranged on the outer wall of the rotating shaft 11. A ceramic membrane 13 is arranged in each of the filter frames 12. The sealing unit is arranged between the filter frame 12 and the primary ultrafiltration half barrel 7, and is used to seal one side of the filter frame 12.

[0040] In a specific case of this embodiment, the sealing unit includes a sealing cover 14, a transmission gear 16 and a second half gear 15, the second half gear 15 is arranged on the first-stage ultrafiltration half barrel 7 and is arranged concentrically with the rotating shaft 11, and each filter frame 12 is hinged with a sealing cover 14 on one side close to the rotating shaft 11, and a torsion spring is arranged at the hinge of the sealing cover 14. The filter frame 12 is symmetrically and movably provided with a transmission gear 16, wherein the transmission gears 16 and the second half gear 15 on the two relatively arranged filter frames 12 are meshed, and the transmission gear 16 and the sealing cover 14 are coaxially connected.

[0041] In another specific case of this embodiment, the concentration and separation component includes a driving structure and an execution structure. The execution structure is arranged on the mounting platform 6 and connects the output hole with the second secondary ultrafiltration box 38, and is used to perform the nanofiltration membrane 24 concentration and separation work on the sucrose water. The execution structure is connected to the reverse osmosis membrane filter 29. The driving structure is arranged on the mounting platform 6 and is connected to the execution structure and the rotating shaft 11. When the driving structure is working, it controls the rotation of the rotating shaft 11 and the operation of the execution structure.

[0042] In actual application, the coarse filtered sucrose water entering the primary ultrafiltration barrel can pass through the ceramic membrane 13 on one of the filter frames 12 on the rotating shaft 11, thereby leaving impurities on the ceramic membrane 13, and the sucrose water is discharged from the ultrafiltration barrel and enters the execution structure. In this process, the driving structure is controlled to work through the console 3. When the driving structure works, on the one hand, it can control the rotating shaft 11 to rotate continuously, thereby driving the ceramic membranes 13 on the filter frames 12 at different positions to change positions and reach the working state in sequence. In this process, the sealing covers 14 on the two relatively arranged filter frames 12 can be opened by the cooperation between the second half gear 15 and the transmission gear 16. Figure 5 The state shown facilitates the smooth operation of the ceramic membrane 13 on one of the filter frames 12 that has reached the working position. The filter frame 12 in the relative position can carry impurities and open the sealing cover 14 to discharge the impurities when it reaches the specified position, thereby avoiding clogging of the ceramic membrane 13 and affecting subsequent filtering processing work, thereby completing the self-cleaning work. On the other hand, when the driving structure is working, it can also control the execution structure to concentrate and separate the received sucrose water to obtain nanofiltration clear liquid and nanofiltration concentrate respectively.

[0043] See also Figure 1-Figure 8As another preferred embodiment of the present application, the driving structure includes a linear motor 17, a driving seat 18 and a transmission member. The driving seat 18 is movably arranged on the fixed seat 10. The driving seat 18 is formed with a slide groove 19 that slides with the fixed seat 10. The linear motor 17 is arranged on the mounting table 6 and its movable end is connected to the driving seat 18. The driving seat 18 is connected to the execution structure. When the driving seat 18 moves, the execution structure is controlled to work. The transmission member is arranged between the driving seat 18 and the rotating shaft 11. When the driving seat 18 moves, the rotating shaft 11 is also controlled to rotate through the transmission member.

[0044] It should be noted that the present embodiment is not limited to the above-mentioned linear motor 17 to adjust the position of the drive seat 18, and electric cylinders, pneumatic cylinders or hydraulic cylinders may also be used instead, which are not listed here one by one.

[0045] In a specific case of this embodiment, the transmission member includes a first half gear 9, a driving groove and teeth. The first half gear 9 is movably arranged on the first-stage ultrafiltration half barrel 7 and is coaxially connected to the rotating shaft 11. The driving groove is arranged on the driving seat 18. The first half gear 9 is arranged on the inner side of the driving groove. A plurality of teeth are symmetrically and equidistantly arranged on the inner wall of the driving groove with the first half gear 9 as the center, and a plurality of teeth on one side are meshed with the first half gear 9.

[0046] In another specific case of the present embodiment, the execution structure includes a concentration filter box 22, an extrusion plate 25, a plug rod 21, an elastic member and a nanofiltration membrane 24, the concentration filter box 22 is arranged on the mounting platform 6, the concentration filter box 22 is provided with a liquid inlet window 35 connected to the first-stage ultrafiltration half barrel 7, the concentration filter box 22 is provided with a drain port 23 connected to the reverse osmosis membrane filter 29, the extrusion plate 25 is movably arranged in the concentration filter box 22 and divides the concentration filter box 22 into a first cavity 27 and a second cavity 26, the nanofiltration membrane 24 is arranged in the second cavity 26, the concentration filter box 22 is provided with a concentrate discharge port 28 connected to the second cavity 26, the concentrate discharge port 28 is connected to the second-stage ultrafiltration box 38, and solenoid valves are provided in the concentrate discharge port 28 and the drain port 23, the plug rod 21 is movably arranged on the concentration filter box 22 and the two are connected by an elastic member, one end of the plug rod 21 is connected to the extrusion plate 25, and the other end is connected to the drive seat 18.

[0047] Without limitation, the elastic member may be a spring 20, a spring sheet or an elastic steel plate structure. In the present embodiment, the elastic member is preferably a spring 20, and the spring 20 is connected between the concentration filter box 22 and the plug rod 21. As for the specific model parameters of the spring 20, the best choice can be made according to the actual situation, and they are not listed one by one here.

[0048] In actual application, the linear motor 17 is controlled to continuously extend and retract through the control console 3, and the driving seat 18 can be controlled to reciprocate in the horizontal direction along the fixed seat 10. In this process, the teeth on both sides of the driving groove can be meshed with the first half gear 9 in succession to control the first half gear 9 to continuously rotate, thereby controlling the rotation of the rotating shaft 11 to perform the first ceramic membrane 13 filtration treatment and self-cleaning work of the coarse filtration sucrose water. At the same time, the plug rod 21 and the squeezing plate 25 can be controlled to reciprocate along the concentration filter box 22, thereby squeezing the sucrose water entering the second cavity 26 of the concentration filter box 22, and respectively controlling the electromagnetic valves in the drain port 23 and the concentrated liquid discharge port 28 to open, thereby utilizing the squeeze and nanofiltration membrane 24 to filter the sucrose water into nanofiltration clear liquid and nanofiltration concentrated liquid, and the nanofiltration clear liquid and the nanofiltration concentrated liquid are discharged from the drain port 23 and the concentrated liquid discharge port 28 respectively, and the nanofiltration clear liquid is discharged into the reverse osmosis membrane filter 29, and the nanofiltration concentrated liquid is discharged into the second secondary ultrafiltration box 38, completing the concentration and separation of the sucrose water.

[0049] See also Figure 1 and Figure 8 As another preferred embodiment of the present application, the evaporation assembly includes an evaporation barrel 31, a top cover 36, a receiving hole 37, an intermediate box 39, a heating base 32, a sleeve box 42, an air inlet pipe 33 and two semi-ring pipes 34. The evaporation barrel 31 is arranged on the support frame 1, the top cover 36 is arranged on the upper side of the evaporation barrel 31, and the top cover 36 is provided with a plurality of receiving holes 37 connected to the second secondary ultrafiltration box 38. The intermediate box 39 is arranged in the evaporation barrel 31, and the evaporation barrel 31 is provided with a conical condensation ring plate 40. The heating base 32 can The disassembled one is arranged on the lower side of the evaporation barrel 31, and a plurality of drainage windows 41 are arranged on the evaporation barrel 31. The drainage windows 41 and the conical condensation ring plate 40 are at the same vertical height. A sleeve box 42 is sleeved on the evaporation barrel 31, and the sleeve box 42 and the drainage windows 41 and the clean water recovery tank 2 are all connected. A group of semi-annular tubes 34 are symmetrically arranged on the evaporation barrel 31 and are located between the top cover 36 and the conical condensation ring plate 40. The air inlet pipe 33 is arranged on one of the semi-annular tubes 34 and the two are connected. The air inlet pipe 33 is connected to the first cavity 27.

[0050] The sucrose concentrate obtained after filtering in the second-stage ultrafiltration box 38 can be discharged into the middle box 39 in the evaporation box through the receiving hole 37. The heating base 32 is controlled by the control console 3 to heat the sucrose concentrate. During the evaporation process, water vapor floats in the evaporation box and contacts with the conical condensation ring plate 40 to obtain clean water. Finally, the clean water is discharged into the clean water recovery box 2 through the drainage window 41 and the sleeve box 42. In this process, the extrusion plate 25 reciprocates in the concentration filter box 22, so that the air in the first cavity 27 is repeatedly squeezed, so that the semi-ring pipe 34 and the air on the upper side of the evaporation barrel 31 can be controlled along the air inlet pipe 33 to form a circulating fluid loop, so that the air in the evaporation barrel 31 is constantly moving, which can generate negative pressure to accelerate the upward movement of water vapor and smoothly contact with the conical condensation ring plate 40, thereby accelerating the evaporation and crystallization process to obtain solid sugar.

[0051] See also Figure 1-Figure 8 In another embodiment of the present application, a method for producing sugarcane plant water based on membrane separation technology is applied to the production device described in the above embodiment, and the specific steps of the production method are as follows:

[0052] S100: pour the coarsely filtered sucrose water into the feed funnel 4, and control the control valve 8 to open at a fixed time through the control console 3, so that the coarsely filtered sucrose water in the feed funnel 4 is intermittently injected into the primary filtration component;

[0053] S200: The control console 3 controls the concentration and separation components to work synchronously, and can control the primary filtration components to work synchronously, and can perform preliminary filtration on the coarse sucrose water. The sucrose water obtained after the primary filtration process is input into the concentration and separation components;

[0054] S300: When the concentration and separation component is working, the sucrose water obtained by the primary filtration can be concentrated and separated to obtain nanofiltration clear liquid and nanofiltration concentrated liquid. The nanofiltration clear liquid enters the reverse osmosis membrane filter 29 and the first and second ultrafiltration boxes 30 in turn to obtain clean water and is discharged into the clean water recovery box 2. The nanofiltration concentrated liquid is processed in the second and second ultrafiltration boxes 38 to obtain sucrose concentrated juice which is discharged into the evaporation component.

[0055] S400: After receiving the sucrose concentrate, the evaporation component heats the sucrose concentrate. After evaporation and crystallization, the clean water can be discharged into the clean water recovery tank 2, and the solid sugar obtained by crystallization can be left in the evaporation component.

[0056] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0057] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sugarcane plant water production device based on membrane separation technology, comprising a support frame, a clean water recovery tank, a control console, a feed funnel, a mounting platform and a mounting frame, wherein the mounting platform is arranged on the support frame, the clean water recovery tank is arranged on the support frame, the control console is arranged on the clean water recovery tank, and the feed funnel is arranged on the mounting platform through the mounting frame, characterized in that: The production device also includes a reverse osmosis membrane filter, a first and second ultrafiltration box, a second and second ultrafiltration box, a primary filtration and concentration system, and an evaporation component. The reverse osmosis membrane filter, the first and second ultrafiltration boxes, and the second and second ultrafiltration boxes are all arranged on a mounting platform. The reverse osmosis membrane filter is connected to the first and second ultrafiltration boxes, and the first and second ultrafiltration boxes are connected to a clean water recovery box. The primary filtration and concentration system is arranged on the mounting platform and is connected to a feed funnel and the second and second ultrafiltration boxes, and is used to perform primary filtration and concentration treatment on the coarsely filtered sucrose water to obtain a nanofiltration concentrate and a nanofiltration clear liquid. A control valve is arranged between the feed funnel and the primary filtration and concentration system. The evaporation component is arranged on a support frame and connects the clean water recovery box and the second and second ultrafiltration boxes, and is used to receive the nanofiltration concentrate and perform evaporation and crystallization treatment. The primary filtration and concentration system includes a primary filtration component and a concentration and separation component. The primary filtration component is arranged on a mounting platform and connected to a feed funnel, and is used to perform preliminary ceramic membrane ultrafiltration separation treatment on the coarsely filtered sucrose water. The concentration and separation component is arranged on a mounting platform and connects the primary filtration component to a second-level ultrafiltration box, and is used to receive the sucrose water after the primary filtration and perform nanofiltration membrane concentration and separation treatment.

2. The sugarcane plant water production device based on membrane separation technology according to claim 1, characterized in that: The primary filtration component includes a fixed seat, two first-level ultrafiltration half barrels and a first-level ceramic membrane filtration structure. The fixed seat is set on a mounting table. The two first-level ultrafiltration half barrels are symmetrically arranged on the fixed seat and form a first-level ultrafiltration barrel. The first-level ultrafiltration half barrel is equidistantly provided with a plurality of input holes, which are connected to a feed funnel. The first-level ultrafiltration half barrel is provided with an output hole on the opposite side of the input hole. The first-level ceramic membrane filtration structure is arranged in the first-level ultrafiltration barrel and is connected to the concentration and separation component. When the concentration and separation component is working, it controls the operation of the first-level ceramic membrane filtration structure and performs filtering treatment on the coarsely filtered sucrose water.

3. The sugarcane plant water production device based on membrane separation technology according to claim 2, characterized in that: The first-level ceramic membrane filtration structure includes a rotating shaft, a filter frame, a ceramic membrane and a sealing unit. The rotating shaft is movably arranged in two first-level ultrafiltration half barrels and is connected to the concentration and separation component. There are several filter frames and they are arranged on the outer wall of the rotating shaft. A ceramic membrane is arranged in each filter frame. The sealing unit is arranged between the filter frame and the first-level ultrafiltration half barrel and is used to seal one side of the filter frame.

4. The sugarcane plant water production device based on membrane separation technology according to claim 3 is characterized in that: The sealing unit includes a sealing cover, a transmission gear and a second half gear, wherein the second half gear is arranged on the first-stage ultrafiltration half barrel and is arranged concentrically with the rotating shaft, a sealing cover is hinged on one side of each filter frame close to the rotating shaft, a torsion spring is arranged at the hinge of the sealing cover, and transmission gears are symmetrically and movably arranged on the filter frame, wherein the transmission gears on the two oppositely arranged filter frames are meshed with the second half gears, and the transmission gear and the sealing cover are coaxially connected.

5. The sugarcane plant water production device based on membrane separation technology according to claim 3, characterized in that: The concentration and separation component includes a driving structure and an execution structure. The execution structure is arranged on a mounting platform and connects the output hole with the second-stage ultrafiltration box, and is used to perform nanofiltration membrane concentration and separation work on sucrose water. The execution structure is connected with a reverse osmosis membrane filter. The driving structure is arranged on a mounting platform and is connected with the execution structure and a rotating shaft. When the driving structure is working, it controls the rotation of the rotating shaft and the operation of the execution structure.

6. The sugarcane plant water production device based on membrane separation technology according to claim 5, characterized in that: The driving structure includes a linear motor, a driving seat and a transmission member. The driving seat is movably arranged on a fixed seat. A slide groove is formed on the driving seat and slides with the fixed seat. The linear motor is arranged on a mounting platform and its movable end is connected to the driving seat. The driving seat is connected to an execution structure. When the driving seat moves, the execution structure is controlled to work. The transmission member is arranged between the driving seat and the rotating shaft. When the driving seat moves, the rotating shaft is also controlled to rotate through the transmission member.

7. The sugarcane plant water production device based on membrane separation technology according to claim 6, characterized in that: The transmission member includes a first half gear, a driving groove and teeth. The first half gear is movably arranged on the first-stage ultrafiltration half barrel and is coaxially connected to the rotating shaft. The driving groove is arranged on the driving seat. The first half gear is arranged on the inner side of the driving groove. A plurality of teeth are symmetrically and equidistantly arranged on the inner wall of the driving groove with the first half gear as the center, and a plurality of teeth on one side are meshed with the first half gear.

8. The sugarcane plant water production device based on membrane separation technology according to claim 6, characterized in that: The execution structure includes a concentration filter box, an extrusion plate, a plug rod, an elastic member and a nanofiltration membrane. The concentration filter box is arranged on a mounting platform. The concentration filter box is provided with a liquid inlet window connected to the first-stage ultrafiltration half barrel. The concentration filter box is provided with a drain port connected to the reverse osmosis membrane filter. The extrusion plate is movably arranged in the concentration filter box and divides the concentration filter box into a first cavity and a second cavity. The nanofiltration membrane is arranged in the second cavity. The concentration filter box is provided with a concentrate discharge port connected to the second cavity. The concentrate discharge port is connected to the second-stage ultrafiltration box. Solenoid valves are arranged in the concentrate discharge port and the drain port. The plug rod is movably arranged on the concentration filter box and the two are connected by an elastic member. One end of the plug rod is connected to the extrusion plate, and the other end is connected to the drive seat.

9. The sugarcane plant water production device based on membrane separation technology according to claim 8, characterized in that: The evaporation assembly includes an evaporation barrel, a top cover, a receiving hole, an intermediate box, a heating base, a sleeve box, an air inlet pipe and two semi-ring pipes, the evaporation barrel is arranged on a support frame, the top cover is arranged on the upper side of the evaporation barrel, the top cover is provided with a plurality of receiving holes connected with the second secondary ultrafiltration box, the intermediate box is arranged in the evaporation barrel, a conical condensation ring plate is arranged in the evaporation barrel, the heating base is detachably arranged on the lower side of the evaporation barrel, a plurality of drainage windows are arranged on the evaporation barrel, the drainage windows and the conical condensation ring plate are at the same vertical height, the evaporation barrel is sleeved with a sleeve box, the sleeve box and the drainage windows and the clean water recovery box are all connected, a group of the semi-ring pipes are symmetrically arranged on the evaporation barrel and are located between the top cover and the conical condensation ring plate, the air inlet pipe is arranged on one of the semi-ring pipes and the two are connected, and the air inlet pipe is connected with the first cavity.

10. A method for producing sugarcane plant water based on membrane separation technology, applied to the production device according to claim 1, characterized in that: The specific steps of the production method are as follows: S100: pour the coarsely filtered sucrose water into the feed funnel, and control the control valve to open at a fixed time through the control console, so that the coarsely filtered sucrose water in the feed funnel is intermittently injected into the primary filtration component; S200: The control console controls the concentration and separation components to work synchronously, and can control the primary filtration components to work preliminarily on the coarse sucrose water. The sucrose water obtained after the primary filtration process is input into the concentration and separation components; S300: When the concentration and separation component is working, the sucrose water obtained by the primary filtration can be concentrated and separated to obtain nanofiltration clear liquid and nanofiltration concentrated liquid. The nanofiltration clear liquid enters the reverse osmosis membrane filter and the first and second ultrafiltration boxes in turn to obtain clean water and is discharged into the clean water recovery box. The nanofiltration concentrated liquid is processed in the second and second ultrafiltration boxes to obtain sucrose concentrated juice which is discharged into the evaporation component. S400: After receiving the sucrose concentrate, the evaporation component heats the sucrose concentrate. After evaporation and crystallization, clean water can be discharged into a clean water recovery tank, and the crystallized solid sugar can be left in the evaporation component.

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