CN116608668A - Graphite oxide-based ultrafiltration membrane drying device - Google Patents

Graphite oxide-based ultrafiltration membrane drying device Download PDF

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Publication number
CN116608668A
CN116608668A CN202210117196.7A CN202210117196A CN116608668A CN 116608668 A CN116608668 A CN 116608668A CN 202210117196 A CN202210117196 A CN 202210117196A CN 116608668 A CN116608668 A CN 116608668A
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CN
China
Prior art keywords
roller
ultrafiltration membrane
extrusion
drying
floating
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210117196.7A
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Chinese (zh)
Inventor
沈涓
赵宇辰
王薇
吴凯
南晓东
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Jiangsu Longhua Environmental Technology Co ltd
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Jiangsu Longhua Environmental Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Jiangsu Longhua Environmental Technology Co ltd filed Critical Jiangsu Longhua Environmental Technology Co ltd
Priority to CN202210117196.7A priority Critical patent/CN116608668A/en
Publication of CN116608668A publication Critical patent/CN116608668A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/24—Arrangements of devices using drying processes not involving heating
    • F26B13/28—Arrangements of devices using drying processes not involving heating for applying pressure; for brushing; for wiping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
    • F26B13/18—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning heated or cooled, e.g. from inside, the material being dried on the outside surface by conduction
    • F26B13/183—Arrangements for heating, cooling, condensate removal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/003—Handling, e.g. loading or unloading arrangements for articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/20—Rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/16—Drying solid materials or objects by processes not involving the application of heat by contact with sorbent bodies, e.g. absorbent mould; by admixture with sorbent materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The application relates to the technical field of drying devices, and discloses a graphite oxide-based ultrafiltration membrane drying device, which comprises a shell, wherein a drying chamber is arranged in the shell, a drying mechanism for drying an ultrafiltration membrane is arranged in the drying chamber, a water extrusion mechanism is also arranged in the drying chamber, the water extrusion mechanism comprises a main roller and a floating slave roller which are oppositely arranged, and the ultrafiltration membrane passes through the space between the main roller and the floating slave roller and is extruded and moved. According to the application, the ultrafiltration membrane can be extruded simultaneously in the conventional drying process, because external moisture is easier to dry, after the ultrafiltration membrane is dried for a period of time, the external moisture is greatly dried, and then the ultrafiltration membrane is extruded to the outside through the main roller and the floating slave roller, so that the internal moisture is extruded to the outside, the water can be locked relatively to the dry external, and then the drying time can be greatly reduced and the drying speed can be improved in the continuous drying process of the drying mechanism.

Description

Graphite oxide-based ultrafiltration membrane drying device
Technical Field
The application relates to the technical field of drying devices, in particular to a graphite oxide-based ultrafiltration membrane drying device.
Background
The ultrafiltration membrane is a high molecular semipermeable membrane which is used for separating high molecular colloid or suspended particles with a certain size from solution in the ultrafiltration process, is widely used for advanced treatment of industrial wastewater and process water, such as concentration, purification and separation of macromolecular substances in chemical industry, food industry and pharmaceutical industry, sterilization of biological solution, separation of dye in printing and dyeing wastewater, recovery of glycerol in petrochemical wastewater, preparation of recovered silver and ultrapure water in photographic chemical wastewater, and the like, and has filament-like, flake-like shapes according to different use environments.
In the process of production and manufacture, the ultrafiltration membrane is required to be dried to prepare the ultrafiltration membrane with better performance and improve the preparation speed. In the prior art, the ultrafiltration membrane is dried by putting the ultrafiltration membrane containing water into a dryer for heating and drying, evaporating the water at a high temperature by flowing, and discharging the water vapor along with the flow direction of wind, thereby drying the ultrafiltration membrane.
For example, the patent application number is CN202110869460.8, and the Chinese patent application is named as a drying device for producing an ultrafiltration membrane which is heated uniformly, which discloses that a plurality of drying mechanisms are arranged on a top plate of an outer box, the drying mechanisms are arranged in one-to-one correspondence with air outlets, and a wind shield is arranged between two adjacent drying mechanisms; the drying mechanism comprises a mounting ring, a threaded ring, a dust screen, a fan and a heating rod; the top plate of the outer box is connected with a mounting ring in a penetrating way; the upper end of the mounting ring is provided with a thread groove, the thread groove is screwed with a thread ring through threads, and the upper end of the inner annular wall of the thread ring is fixed with a dust screen; a fan is fixed at the upper end of the inner annular wall of the mounting ring and is connected with an external power supply; the application relates to a solar heat collecting device, which comprises a mounting ring, wherein a plurality of heating rods are fixed at the lower end of the inner annular wall of the mounting ring, and the heating rods are connected with an external power supply.
The drying device for producing the ultrafiltration membrane has the same drying mode as that in the prior art, and the ultrafiltration membrane is dried by utilizing wind heat, and has the defects that the ultrafiltration membrane has a certain thickness, when being dried in the drying device, heat firstly contacts with the outside of the ultrafiltration membrane, then the heat slowly permeates into the inside to realize gradual drying from outside to inside, but the heat needs to penetrate time from outside to inside, and the moisture content in the ultrafiltration membrane is very high, so that the inside of the ultrafiltration membrane needs to be completely dried, and more heat is needed to permeate into the inside of the ultrafiltration membrane, thereby prolonging the drying time of the ultrafiltration membrane and reducing the drying efficiency.
Disclosure of Invention
The application aims to provide a graphite oxide-based ultrafiltration membrane drying device, which aims to solve the defects in the prior art.
In order to achieve the above object, the present application provides the following technical solutions: the utility model provides a graphite oxide-based milipore filter drying device, includes the casing, the inside of casing is provided with the drying chamber, be provided with the stoving mechanism that is used for drying the milipore filter in the drying chamber, still be provided with moisture extrusion mechanism in the drying chamber, moisture extrusion mechanism is including the main roller and the floating slave roller of relative setting, the milipore filter passes between main roller and the floating slave roller and by the extrusion removal.
According to the graphite oxide-based ultrafiltration membrane drying device, the water extrusion mechanism further comprises a heating cylinder fixedly installed in the drying chamber, and the floating slave roller is sleeved on the heating cylinder in a rotating mode.
The graphite oxide-based ultrafiltration membrane drying device comprises a body, wherein a movable groove is formed in the outer peripheral surface of the body, a plurality of arc plates are rotatably arranged in the movable groove through torsion spring shafts, the arc plates are circumferentially and equidistantly arranged, a floating slave roller wheel is sleeved on each arc plate, each arc plate is extruded with the inner wall of the floating slave roller wheel under the action of the elasticity of the torsion spring shafts, and a floating space is formed between the floating slave roller wheel and the body.
According to the graphite oxide-based ultrafiltration membrane drying device, the water absorption layer is arranged on the outer peripheral surface of the floating slave roller.
According to the graphite oxide-based ultrafiltration membrane drying device, the floating slave roller and the arc-shaped plate are both made of heat transfer metal.
The graphite oxide-based ultrafiltration membrane drying device is characterized in that a cleaning mechanism corresponding to the main roller is arranged in the drying chamber, the cleaning mechanism comprises a plurality of auxiliary rollers which are rotatably arranged in the drying chamber, the auxiliary rollers are connected through a cleaning belt in a transmission manner, and the outer surface of the cleaning belt is extruded and attached to the outer wall of the main roller.
The graphite oxide-based ultrafiltration membrane drying device is characterized in that the cleaning mechanism is arranged in the connecting shell, the connecting shell is fixedly connected with the drying chamber, a fixing plate corresponding to the connecting shell is fixedly arranged in the drying chamber, an extrusion spring is connected between the fixing plate and the connecting shell, and the elastic force of the extrusion spring drives the cleaning belt to extrude the outer wall of the main roller.
According to the graphite oxide-based ultrafiltration membrane drying device, the left side face of the shell is rotatably provided with the upper extrusion roller and the lower extrusion roller, the lower extrusion roller is connected with the main roller through the transmission belt, and a pre-extrusion gap of the ultrafiltration membrane is formed between the upper extrusion roller and the lower extrusion roller.
According to the graphite oxide-based ultrafiltration membrane drying device, the upper extrusion roller and the lower extrusion roller are staggered, so that the extrusion point of the extrusion ultrafiltration membrane in the pre-extrusion gap is positioned on the right side of the vertical central line of the lower extrusion roller.
According to the graphite oxide-based ultrafiltration membrane drying device, the water collecting tank is fixedly arranged on the left side face of the shell and is located right below the upper extrusion roller and the lower extrusion roller.
According to the graphite oxide-based ultrafiltration membrane drying device, the main roller and the floating slave roller which are mutually extruded are arranged in the drying chamber, the main roller is connected with the driving motor, when the driving motor drives the main roller to rotate, the floating slave roller can be driven to rotate together by utilizing the friction force between the main roller and the floating slave roller, the ultrafiltration membrane can be extruded by the rotating main roller and the floating slave roller when entering between the main roller and the floating slave roller, the ultrafiltration membrane is moved to the discharge hole by utilizing the rotating extrusion force, the extruded ultrafiltration membrane can transfer the internal moisture to the outside under the action of the extrusion force, so that the internal moisture content is greatly reduced, the moisture transferred to the outside can be dried more quickly under the action of the drying mechanism, and due to the floating design of the floating slave roller, the floating slave roller can automatically move downwards when the ultrafiltration membrane is extruded, the ultrafiltration membrane can smoothly enter between the main roller and the floating slave roller and is pushed forward, the ultrafiltration membrane is prevented from being extruded to be damaged due to overlarge extrusion force, and the application range of the ultrafiltration membrane with different thickness can be used. Compared with the prior art, the application can extrude the ultrafiltration membrane at the same time in the conventional drying process of the ultrafiltration membrane, because the external moisture is easier to be dried, after the ultrafiltration membrane is dried for a period of time, the external moisture of the ultrafiltration membrane is greatly dried, and then the ultrafiltration membrane is extruded to the outside through the main roller and the floating slave roller, so that the internal moisture of the ultrafiltration membrane is extruded to the outside, the relatively dry external part can lock the water, and then the drying time can be greatly reduced, the drying speed is improved, and the defects in the prior art are effectively solved in the continuous drying process of the drying mechanism.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a front cross-sectional view of a graphite oxide-based ultrafiltration membrane drying apparatus provided by an embodiment of the application;
fig. 2 is an enlarged schematic view of a portion a according to an embodiment of the present application;
FIG. 3 is a cross-sectional view of a connection between a floating slave roller and a heating cylinder in the unstressed condition of the floating slave roller according to an embodiment of the present application;
fig. 4 is an enlarged schematic view of a B part according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an adsorption mechanism according to an embodiment of the present application;
FIG. 6 is an enlarged schematic view of the B-1 part according to an embodiment of the present application.
Reference numerals illustrate:
1. a housing; 101. a drying chamber; 2. a partition plate; 3. a drying mechanism; 4. a lower squeeze roll; 5. an upper squeeze roll; 6. a water collection tank; 7. an ultrafiltration membrane; 8. a main roller; 9. floating the slave roller; 10. a water-absorbing layer; 11. an auxiliary roller; 12. cleaning the belt; 13. a connection housing; 14. a fixing plate; 15. extruding a spring; 16. a heating cylinder; 1601. a body; 1602. a movable groove; 1603. a heating chamber; 1604. a flow port; 17. an arc-shaped plate; 18. a floating space; 19. a first tube body; 1901. a vent hole; 20. a first compression spring; 21. a piston rod; 22. a second tube body; 23. a one-way valve; 24. a connection housing; 2401. a chute; 25. an eccentric wheel; 26. a slide plate; 27. an arc-shaped net; 28. a second compression spring; 29. absorbent cotton cloth.
Detailed Description
In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 6, the graphite oxide based ultrafiltration membrane drying device provided by the embodiment of the application comprises a shell 1, wherein a drying chamber 101 is arranged in the shell 1, and a drying mechanism 3 for drying an ultrafiltration membrane 7 is arranged in the drying chamber 101, and is characterized in that: the drying chamber 101 is also internally provided with a moisture squeezing mechanism, the moisture squeezing mechanism comprises a main roller 8 and a floating auxiliary roller 9 which are oppositely arranged, and the ultrafiltration membrane 7 passes through between the main roller 8 and the floating auxiliary roller 9 and is squeezed and moved.
The application provides a graphite oxide-based ultrafiltration membrane drying device which is suitable for continuously drying a filiform ultrafiltration membrane and a sheet ultrafiltration membrane. For convenience of description, the "left" and "right" in this embodiment are according to the positions in the drawing, and the ultrafiltration membrane 7 is advanced in a left-to-right direction during drying. The casing 1 is provided with a drying mechanism 3 and an exhaust port (this is the prior art and is not shown in the figure), the drying mechanism 3 is a drying mode in which a heating wire is used for heating in the prior art and heat is blown into the drying chamber 101 by a fan, and other heating modes in the prior art can be used, which are not repeated here; the shell 1 is also provided with a feed inlet and a discharge outlet, the lengths of the feed inlet and the discharge outlet in the height direction are set according to practical conditions and are not too long, so that the heat generated by the drying mechanism 3 is prevented from flowing out in a large amount, and the temperature in the drying chamber 101 is prevented from being unstable; the water extrusion mechanism is used for extruding the ultrafiltration membrane 7 entering the drying chamber 101 and providing power for the ultrafiltration membrane 7 to move forwards to the right, and the number of the water extrusion mechanisms is preferably two and is respectively close to the feed inlet and the discharge outlet; in order to smoothly discharge the dried ultrafiltration membrane 7 from the discharge port, a guide plate (shown in the figure) may be arranged between the discharge port and the water extrusion mechanism, so that the dried ultrafiltration membrane 7 comes out along the guide plate, or the guide plate may be enlarged to be arranged at the feed port, or arranged between the two water extrusion mechanisms, so as to provide support for movement of the ultrafiltration membrane 7, or a manner of multi-group roller extrusion (not shown in the figure) in the prior art may be arranged to smoothly discharge the ultrafiltration membrane 7 from the discharge port, which is not repeated herein; the main roller 8 on one of the water extrusion mechanisms is connected with an external driving motor (not shown in the figure), the main roller 8 on the other water extrusion mechanisms is connected with the main roller 8 through a transmission belt in a synchronous transmission way, the driving motor is fixedly arranged on the outer side surface of the shell 1, the output end of the driving motor passes through the side surface of the shell 1 and enters the drying chamber 101, the main roller 8 is fixedly connected with the output end of the driving motor, the driving motor is preferably a servo motor, and the rotating speed can be adjusted through a control end so as to control the advancing speed of the ultrafiltration membrane 7, so that the drying time of the ultrafiltration membrane 7 can be set; the floating slave roller 9 is positioned under the main roller 8, the main roller 8 and the floating slave roller 9 are both rotatably arranged in the drying chamber 101, and the cooperation of the two is used for extruding the ultrafiltration membrane 7 and providing forward moving power for the ultrafiltration membrane 7; the floating slave roller 9 can float and rotate and is extruded by the master roller 8, no gap exists between the floating slave roller 9 and the master roller 8, and even if the ultra-filtration membrane 7 which is very thin enters between the floating slave roller 9 and the master roller 8, the ultra-filtration membrane 7 can be extruded and pushed forward, so that the application range of the ultra-filtration membrane 7 is very wide; moreover, even if no ultrafiltration membrane 7 enters between the floating slave roller 9 and the master roller 8, the floating slave roller 9 can be driven to rotate along with the friction force between the floating slave roller 9 and the master roller 8 by utilizing the friction force between the floating slave roller 9 and the master roller 8, and the design of the embodiment ensures that the ultrafiltration membrane 7 is always in a rotating state before entering between the floating slave roller 9 and the master roller 8 because of the structure and the mutual abutting limitation of the floating slave roller 9 and the master roller 8, if the floating slave roller 9 is still in a static state before placing the ultrafiltration membrane 7 between the floating slave roller 9 and the master roller 8, the floating slave roller 9 at the moment can block the advancing ultrafiltration membrane 7, the bending resistance of the ultrafiltration membrane 7 between the floating slave roller 9 and the master roller 8 is increased, the entering difficulty is even caused, and the ultrafiltration membrane 7 is more difficult to enter, and the ultrafiltration membrane 7 is more conveniently installed between the floating slave roller 9 and the master roller 8 by losing the blocking force of the ultrafiltration membrane 7 entering between the floating slave roller 9 and the master roller 8; the floating slave roller 9 and the master roller 8 on the water extrusion mechanism close to the feed inlet keep a certain distance with the feed inlet, the distance can provide drying time for the ultrafiltration membrane 7, the outside of the ultrafiltration membrane 7 is dried to a certain extent, water is conveniently locked for the water extruded from the inside of the ultrafiltration membrane 7, and the extruded water is prevented from entering the inside of the ultrafiltration membrane 7 again. The working principle of the graphite oxide-based ultrafiltration membrane drying device provided by the application is that the drying mechanism 3 is started to provide heat for the drying cavity 101, the driving motor is started to drive the main roller 8 to drive the floating slave roller 9 to rotate, then the ultrafiltration membrane 7 is arranged between the main roller 8 and the floating slave roller 9 of each moisture extrusion mechanism, the ultrafiltration membrane 7 starts to be dried, steam generated during drying is discharged from the exhaust port, after the ultrafiltration membrane 7 enters the drying cavity 101 to be dried for a certain time, the moisture outside the ultrafiltration membrane 7 is partially removed and changed to be dried, then the ultrafiltration membrane 7 enters between the floating slave roller 9 and the main roller 8 to be extruded along with the continuing progress of the ultrafiltration membrane 7 to the right side, at the moment, the extrusion force of the floating slave roller 9 and the main roller 8 to the ultrafiltration membrane 7 enables the moisture inside the ultrafiltration membrane 7 to be extruded to the outside, because the outside is drier, the moisture entering the outside is locked, so that the content of the moisture inside is reduced, and the drying time can be reduced when the ultrafiltration membrane 7 is dried under the action of the drying mechanism 3, the rotating floating slave roller 9 and the main roller 8 are pushed forward until the ultrafiltration membrane 7 is discharged to the drying outlet is continued. In the prior art, only simple drying treatment is performed, the efficiency is low, and the main innovation point of the application is that the moisture in the ultrafiltration membrane 7 is transferred to the outside through extrusion, and the outside is more easily contacted by heat, so that the drying is faster and easier, the drying time of the whole ultrafiltration membrane 7 can be reduced, and the drying efficiency is improved.
In this embodiment, through setting up the main roller 8 and the floating slave roller 9 of mutual extrusion in drying chamber 101, main roller 8 is connected with driving motor, when driving motor drive main roller 8 rotates, utilize the frictional force between main roller 8 and the floating slave roller 9, can drive the floating slave roller 9 and rotate together, when ultrafiltration membrane 7 gets into between main roller 8 and the floating slave roller 9, can be extruded by pivoted main roller 8 and floating slave roller 9, and utilize pivoted extrusion force to remove ultrafiltration membrane 7 to the discharge gate, the ultrafiltration membrane 7 of being extruded can make its inside moisture transfer to outside under the effect of extrusion force, thereby with inside moisture content greatly reduced, again under drying mechanism 3's effect, can be with the more rapid stoving of outside moisture, and because the floating slave roller 9's floating design of floating slave roller 9, ultrafiltration membrane 7 can move down voluntarily when being extruded, ensure that ultrafiltration membrane 7 can get into between main roller 8 and the floating slave roller 9 smoothly and by forward propulsion, prevent ultrafiltration membrane 7 extrusion dynamics is too big and can expand to different thickness range ultrafiltration membrane 7. Compared with the prior art, in the conventional drying process of the ultrafiltration membrane 7, the ultrafiltration membrane 7 can be simultaneously extruded, because external moisture is easier to dry, after the ultrafiltration membrane 7 is dried for a period of time, the external moisture is greatly dried, and then the ultrafiltration membrane 7 is extruded to the outside through the extrusion of the main roller 8 and the floating slave roller 9, so that the internal moisture is extruded to the outside, the water can be locked by the relatively dry outside, and then the drying time can be greatly reduced and the drying speed can be improved in the continuous drying process of the drying mechanism 3.
In this embodiment, the moisture squeezing mechanism further includes a heating cylinder 16 fixedly installed in the drying chamber 101, and the floating slave roller 9 is rotatably sleeved on the heating cylinder 16. The heating cylinder 16 is heated by high-temperature fluid, the high-temperature fluid is heated oil, a heating cavity 1603 is formed in the heating cylinder 16, a high-temperature fluid flow port 1604 is connected to the heating cavity 1603, the flow port 1604 comprises a fluid inlet and a fluid outlet and is connected with an external high-temperature fluid conveying device (not shown in the figure), the high-temperature fluid conveying device is used for heating the fluid and circularly conveying the fluid into the heating cavity 1603, the high-temperature fluid generates heat in the heating cavity 1603 and transfers the heat to the heating cylinder 16, and then the heating cylinder 16 transfers the heat to the floating slave roller 9, so that when the floating slave roller 9 extrudes the ultrafiltration membrane 7, the bottom of the ultrafiltration membrane 7 can be heated by utilizing the heat of the floating slave roller 9, and the drying efficiency of the bottom of the ultrafiltration membrane 7 is improved.
In this embodiment, the heating cylinder 16 includes a body 1601, a movable groove 1602 is disposed on an outer peripheral surface of the body 1601, a plurality of arc plates 17 are disposed in the movable groove 1602 by rotating a torsion spring shaft, the torsion spring shaft is a rotating shaft sleeved with a torsion spring, the arc plates 17 are rotationally connected with the movable groove 1602 by utilizing the torsion spring shaft, meanwhile, the torsion spring shaft provides a rotating acting force to the outer side of the body 1601 for each arc plate 17, the arc plates 17 are circumferentially and equidistantly arranged, the movable groove 1602 provides a movable space for the arc plates 17, so that the arc plates 17 can freely rotate, a floating slave roller 9 is sleeved on each arc plate 17, under the action of elasticity of the torsion spring shaft, each arc plate 17 is extruded with an inner wall of the floating slave roller 9, the extrusion force provides support for the floating slave roller 9, so that the floating slave roller 9 can rotate around each arc plate 17, a floating space 18 is formed between the floating slave roller 9 and the body, the floating space 18 provides a floatable space for the floating slave roller 9, so that the floating slave roller 9 can be pressed by the external pressing force, and the floating slave roller 9 can still rotate around each arc plate 17 by utilizing elasticity of the torsion spring. In this embodiment, the friction force between the floating slave roller 9 and each arc-shaped plate 17 is far smaller than the friction force between the master roller 8 and the floating slave roller 9, and is far smaller than the friction force between the master roller 8 and the ultrafiltration membrane 7, and between the ultrafiltration membrane 7 and the floating slave roller 9, so that the master roller 8 can smoothly drive the floating slave roller 9 to rotate around each arc-shaped plate 17 no matter whether the ultrafiltration membrane 7 is extruded or not.
By arranging a plurality of arc plates 17, the floating design of the floating slave roller 9 and the rotation design of the floating slave roller 9 are realized at the same time; the floating and rotating design of the floating slave roller 9 ensures that the main roller 8 always has downward extrusion force on the floating slave roller 9 (namely before and during extrusion of the ultrafiltration membrane 7), so that the floating slave roller 9 can always rotate along with the rotation of the main roller 8, the ultrafiltration membrane 7 can enter between the floating slave roller 9 and the main roller 8 more smoothly during installation, and meanwhile, the ultrafiltration membrane 7 in extrusion can be pushed forward during drying; meanwhile, the floating slave roller 9 floats, so that the floating slave roller 9 and the master roller 8 have a buffer function on the extrusion force of the ultrafiltration membrane 7, the extrusion force is not excessive, and the integrity of the ultrafiltration membrane 7 can be effectively protected from being broken; furthermore, the floating and rotating design of the floating slave roller 9 enables the floating slave roller 9 and the master roller 8 to squeeze and push the ultrafiltration membranes 7 with different thicknesses, so that the applicable range is greatly improved, and the ultrafiltration membrane filter is applicable to both the filiform ultrafiltration membranes 7 and the sheet-shaped ultrafiltration membranes 7; and the rotation design of the floating slave roller 9 ensures that the heating cylinder 16 does not need to rotate or move, thereby greatly reducing the difficulty of realizing extrusion and propulsion of the ultrafiltration membrane 7.
Further, a water absorbing layer 10 is arranged on the outer peripheral surface of the floating slave roller 9, the water absorbing layer 10 can be fixed on the outer peripheral surface of the floating slave roller 9 in a gluing or screw connection mode of high temperature resistant glue, and the water absorbing layer 10 is used for absorbing and extruding water when the ultrafiltration membrane 7 is extruded. When the water in the ultrafiltration membrane 7 is more, along with the extrusion of the floating slave roller 9 and the master roller 8, the water overflows from the ultrafiltration membrane 7, and the overflowed water can be absorbed through the excellent adsorption capacity of the water absorption layer 10, so that the overflowed water can be prevented from flowing back, and the drying speed of the ultrafiltration membrane 7 can be further improved. The water absorbing layer 10 is preferably made of a water absorbing resin material, the water absorbing resin has excellent water absorbing capacity, water locking capacity is raised, and water absorbed by the water absorbing layer is difficult to be discharged in a squeezing mode, so that water absorbed by the water absorbing layer 10 cannot flow back to the ultrafiltration membrane 7 in the subsequent squeezing process; meanwhile, the simplest and preferred mode of the dewatering mode of the water-absorbent resin is drying, so that when the absorbed water is required to be discharged, only the water-absorbent layer 10 is required to be heated and dried, the high heat on the floating slave roller 9 is utilized, the water-absorbent layer 10 can be dried in real time, the water-absorbent layer 10 can be discharged without being taken out, the convenience is greatly improved, the water-absorbent layer 10 can be used for a long time, the water-absorbent layer 10 is dried in real time, the water-absorbent layer 10 and the ultrafiltration membrane 7 are always kept dry, the water-absorbent layer 10 is ensured to always keep the best water-absorbent state, the water-absorbent layer 10 has no heat insulation effect, the absorbed heat is directly transferred to the bottom of the ultrafiltration membrane 7, and the heat on the floating slave roller 9 still has the drying effect on the bottom of the ultrafiltration membrane 7; furthermore, the outer surface of the water absorbing layer 10 made of the water absorbing resin has a larger roughness than the outer surface of the floating slave roller 9, so that the friction force between the ultrafiltration membrane 7 and the master roller 8 can be increased, and further, the floating slave roller 9 can be rotated by the master roller 8.
Still further, the floating slave roller 9 and the arcuate plate 17 are both made of a heat transfer metal. By utilizing the excellent heat conductivity of the heat transfer metal, the heat on the heating cylinder 16 can be more efficiently transferred to the arc-shaped plate 17, and the arc-shaped plate 17 is also in contact with the floating slave roller 9, so that the heat can be efficiently transferred to the floating slave roller 9, and finally the floating slave roller 9 rapidly transfers the heat to the water-absorbing layer 10 and the ultrafiltration membrane 7, thereby greatly improving the heat transfer and reducing the heat loss.
Still further, be provided with the clearance mechanism corresponding with main roller 8 in the drying chamber 101, clearance mechanism is used for cleaing away the moisture of adhesion on main roller 8 outer peripheral face, clearance mechanism include with drying chamber 101 rotate a plurality of vice gyro wheels 11 that set up, through clearance area 12 transmission connection between a plurality of vice gyro wheels 11, the surface extrusion laminating of clearance area 12 and the outer wall of main roller 8. Because a small amount of water squeezed out is adhered to the outer wall of the main roller 8 when the ultrafiltration membrane 7 is squeezed, the cleaning belt 12 has certain water absorption capacity, so that the rotating main roller 8 can transfer the water on the outer wall to the cleaning belt 12, the outer wall of the main roller 8 is kept dry, the water on the outer wall of the main roller 8 can not be transferred to the ultrafiltration membrane 7 by later squeezing, and the drying efficiency of the ultrafiltration membrane 7 can be further improved; moreover, by utilizing the friction force between the outer surface of the cleaning belt 12 and the outer wall of the main roller 8, the rotating main roller 8 can drive the cleaning belt 12 to rotate around each auxiliary roller 11, so that each part of the outer surface of the cleaning belt 12 can be in contact with the outer part of the main roller 8, and the utilization rate of the cleaning belt 12 can be improved.
Further, the cleaning mechanism is arranged in the connecting shell 13, the connecting shell 13 is fixedly connected with the drying chamber 101, a fixing plate 14 corresponding to the connecting shell 13 is fixedly arranged in the drying chamber 101, an extrusion spring 15 is connected between the fixing plate 14 and the connecting shell 13, and the elastic force of the extrusion spring 15 drives the cleaning belt 12 to extrude the outer wall of the main roller 8. The extrusion spring 15 can provide a movable space for the cleaning belt 12, so that the outer surface of the cleaning belt 12 and the outer wall of the main roller 8 are always kept in an extrusion state, and the outer surface of the cleaning belt 12 and the outer wall of the main roller 8 are prevented from loosening, so that the cleaning effect is reduced.
In this embodiment, the left side surface of the casing 1 is rotatably provided with an upper squeeze roller 5 and a lower squeeze roller 4, the lower squeeze roller 4 is in transmission connection with the main roller 8 through a transmission belt, a pre-squeeze gap of the ultrafiltration membrane 7 is formed between the upper squeeze roller 5 and the lower squeeze roller 4, the pre-squeeze gap is used for squeezing the ultrafiltration membrane 7 which does not enter the drying cavity 101, and water is discharged, because the water on the ultrafiltration membrane 7 is too much at the beginning, the ultrafiltration membrane 7 can be put into the drying device for drying at a high temperature after naturally airing for a period of time, obviously, the efficiency of the mode is lower, and more time is required.
Further, the upper squeeze roller 5 and the lower squeeze roller 4 are staggered so that the squeeze point of the pre-squeeze gap squeeze ultrafiltration membrane 7 is located on the right side of the vertical center line of the lower squeeze roller 4. Because during pre-extrusion, more water is extruded, water can drop downwards along the outer wall of the lower extrusion roller 4 under the action of gravity, the rotation direction of the lower extrusion roller 4 is rightward rotation (namely the advancing direction of the ultrafiltration membrane 7), and the ultrafiltration membrane 7 enters from the left side, so that the extruded water can move to the bottom of the lower extrusion roller 4 in a homeotropic manner through the staggered design of the upper extrusion roller 5 and the lower extrusion roller 4, and cannot move to the left side, and all the extruded water cannot be dipped back on the ultrafiltration membrane 7 ready to enter a pre-extrusion gap again, but moves reversely.
Still further, the left side of the housing 1 is fixedly provided with a water collection tank 6, and the water collection tank 6 is positioned right below the upper squeeze roller 5 and the lower squeeze roller 4. Since the extruded moisture gradually moves to the bottom of the lower extrusion roller 4 and drops downward by gravity, it is collected in the header tank 6 and does not drop to the ground.
Still further, an elastic adsorption mechanism is fixedly arranged on the inner side wall of the water collection tank 6 and is used for adsorbing water which is adhered to the outer wall of the lower squeeze roller 4 and does not drop down.
In a preferred embodiment, the elastic adsorption mechanism comprises a first pipe body 19 fixedly installed on the water collecting tank 6, a second pipe body 22 is arranged in a cavity of the first pipe body 19 in a sealing sliding manner, a first compression spring 20 is arranged between the first pipe body 19 and the second pipe body 22, the first compression spring 20 is used for pushing the second pipe body 22, a vent hole 1901 is formed in the first pipe body 19, the vent hole 1901 is positioned between the first pipe body 19 and the second pipe body 22 and is used for air inlet and air outlet, a piston rod 21 is fixedly installed in the cavity of the first pipe body 19, the piston rod 21 penetrates through the axial direction of the first compression spring 20, the piston rod 21 is in sealing sliding connection with the second pipe body 22, the other end of the second pipe body 22 is fixedly connected with a connecting shell 24, the cavity of the connecting shell 24 is communicated with the cavity of the second pipe body 22, sliding grooves 2401 are symmetrically formed in upper and lower shell plates at the other end of the connecting shell 24, the sliding plates 26 are slidably connected in the sliding grooves 2401 through the second compression springs 28, the second compression springs 28 are used for pushing the sliding plates 26, the other ends of the two sliding plates 26 are fixedly connected with the arc-shaped net 27, the outer parts of the arc-shaped net 27 are wrapped with water-absorbing cotton cloth 29, the outer side surfaces of the water-absorbing cotton cloth 29 are always abutted against the outer wall of the lower extrusion roller 4 under the action of the elasticity of the second compression springs 28, the water-absorbing cotton cloth 29 can be made of other water-absorbing materials, the arc-shaped net 27 is made of materials which are not easy to deform, such as metal, and is used for supporting the water-absorbing cotton cloth 29, the eccentric wheel 25 is arranged on the connecting shell 24 through the rotation of the vertical plate, the horizontal center line of the eccentric wheel 25 is overlapped with the horizontal center line of the lower extrusion roller 4, the eccentric wheel 25 is always abutted against the outer wall of the lower extrusion roller 4 under the action of the first compression springs 20, and under the action of friction force, the eccentric wheel 25 rotates along with the rotation of the lower squeeze roller 4, and the connecting shell 24 is provided with the one-way valve 23, the one-way valve 23 enables the gas in the cavity of the connecting shell 24 to flow out to the outside, but the outside gas cannot enter the cavity of the connecting shell 24 through the one-way valve 23, namely, the one-way valve 23 is closed when the cavity of the connecting shell 24 is negative pressure, and the one-way valve 23 is opened when positive pressure is generated (the structure and principle of the one-way valve 23 are in the prior art and are not repeated).
Through the design of the structure, when the lower extrusion roller 4 rotates to extrude the ultrafiltration membrane 7, moisture is adhered to the outer wall of the lower extrusion roller 4, the eccentric wheel 25 rotates along with the rotation of the lower extrusion roller 4, under the combined action of the eccentric wheel 25 and the first compression spring 20, the eccentric wheel 25 drives the connecting shell 24 and the second pipe body 22 to move left and right, and in the process of moving left and right of the connecting shell 24 and the second pipe body 22, the water-absorbing cotton cloth 29 is always abutted to the outer wall of the lower extrusion roller 4 under the action of the second compression spring 28, the water-absorbing cotton cloth 29 absorbs the moisture adhered to the outer wall of the lower extrusion roller 4, the lower extrusion roller 4 is convenient to continuously extrude the ultrafiltration membrane 7, when the connecting shell 24 and the second pipe body 22 move rightwards, negative pressure is generated in the cavity of the connecting shell 24 under the action of the piston rod 21, at the moment, the one-way valve 23 is closed, the negative pressure absorbs the moisture absorbed in the water-absorbing cotton cloth 29 into the cavity of the connecting shell 24, so that the moisture in the water-absorbing cotton cloth 29 is reduced, and the continuous absorption of the water-absorbing cotton cloth 29 on the outer wall of the lower extrusion roller 4 can be realized; when the connection housing 24 and the second pipe body 22 move to the left, positive pressure is generated in the cavity of the connection housing 24, the check valve 23 is opened, and moisture in the cavity of the connection housing 24 is discharged through the check valve 23, so that the moisture in the cavity of the connection housing 24 cannot flow back into the absorbent cotton cloth 29. Thus, by the above structure, not only the continuous cleaning of the moisture adhering to the outer wall of the lower squeeze roll 4 but also the automatic cleaning of the moisture in the absorbent cotton cloth 29 are realized.
Further, the combination of the connection housing 24 and the second tube 22 may have multiple sets (see fig. 5) to provide an automatic cleaning efficiency of the absorbent cotton 29.
Still further, the upper squeeze roll 5 may be designed in a floating manner, and the structure thereof may be referred to the floating design of the floating slave roll 9, which will not be described again, so that the extrusion of the ultrafiltration membrane 7 applicable to various thickness specifications is also achieved in the pre-extrusion, the integrity of the ultrafiltration membrane 7 in the pre-extrusion process is protected, and the ultrafiltration membrane 7 enters between the upper squeeze roll 5 and the lower squeeze roll 4 when it is more convenient.
In this embodiment, the partition board 2 is fixedly installed in the drying chamber 101, and the partition board 2 is located between two water extrusion mechanisms, so as to partition the drying chamber 101, prevent water vapor on the left side of the drying chamber 101 from entering the right side of the drying chamber, and improve drying efficiency.
While certain exemplary embodiments of the present application have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the application, which is defined by the appended claims.

Claims (10)

1. The utility model provides a graphite oxide-based milipore filter drying device, includes casing (1), the inside of casing (1) is provided with drying chamber (101), be provided with in drying chamber (101) and be used for stoving milipore filter (7) stoving mechanism (3), its characterized in that: the drying chamber (101) is internally provided with a water extrusion mechanism, the water extrusion mechanism comprises a main roller (8) and a floating auxiliary roller (9) which are oppositely arranged, and the ultrafiltration membrane (7) passes through the space between the main roller (8) and the floating auxiliary roller (9) and is extruded and moved.
2. The graphite oxide-based ultrafiltration membrane drying apparatus according to claim 1, wherein: the water extrusion mechanism further comprises a heating cylinder (16) fixedly arranged in the drying chamber (101), and the floating slave roller (9) is rotatably sleeved on the heating cylinder (16).
3. The graphite oxide-based ultrafiltration membrane drying apparatus according to claim 2, wherein: the heating cylinder (16) comprises a body (1601), a movable groove (1602) is formed in the outer peripheral surface of the body (1601), a plurality of arc plates (17) are rotatably arranged in the movable groove (1602) through torsion spring shafts, the arc plates (17) are circumferentially and equidistantly arranged, the floating slave roller (9) is sleeved on each arc plate (17), under the action of the elasticity of the torsion spring shafts, each arc plate (17) is extruded with the inner wall of the floating slave roller (9), and a floating space (18) is formed between the floating slave roller (9) and the body (1601).
4. The graphite oxide-based ultrafiltration membrane drying apparatus according to claim 1, wherein: the outer peripheral surface of the floating slave roller (9) is provided with a water absorption layer (10).
5. A graphite oxide-based ultrafiltration membrane drying apparatus as claimed in claim 3, wherein: the floating slave roller (9) and the arc plate (17) are both made of heat transfer metal.
6. The graphite oxide-based ultrafiltration membrane drying apparatus according to claim 1, wherein: the drying chamber (101) is internally provided with a cleaning mechanism corresponding to the main roller (8), the cleaning mechanism comprises a plurality of auxiliary rollers (11) which are rotatably arranged in the drying chamber (101), the auxiliary rollers (11) are in transmission connection through a cleaning belt (12), and the outer surface of the cleaning belt (12) is in extrusion fit with the outer wall of the main roller (8).
7. The graphite oxide-based ultrafiltration membrane drying apparatus according to claim 6, wherein: the cleaning mechanism is arranged in a connecting shell (13), the connecting shell (13) is fixedly connected with a drying chamber (101), a fixing plate (14) corresponding to the connecting shell (13) is fixedly arranged in the drying chamber (101), an extrusion spring (15) is connected between the fixing plate (14) and the connecting shell (13), and the elastic force of the extrusion spring (15) drives a cleaning belt (12) to extrude the outer wall of a main roller (8).
8. The graphite oxide-based ultrafiltration membrane drying apparatus according to claim 1, wherein: the left side face of casing (1) rotates and is provided with squeeze roller (5) and squeeze roller (4) down, squeeze roller (4) down and main running roller (8) are connected through the transmission of transmission band, form the pre-extrusion clearance of milipore filter (7) between squeeze roller (5) and squeeze roller (4) down.
9. The graphite oxide-based ultrafiltration membrane drying apparatus according to claim 8, wherein: the upper extrusion roller (5) and the lower extrusion roller (4) are staggered, so that the extrusion point of the pre-extrusion gap extrusion ultrafiltration membrane (7) is positioned on the right side of the vertical central line of the lower extrusion roller (4).
10. The graphite oxide-based ultrafiltration membrane drying apparatus according to claim 8, wherein: the left side face of the shell (1) is fixedly provided with a water collecting tank (6), and the water collecting tank (6) is positioned right below the upper squeeze roller (5) and the lower squeeze roller (4).
CN202210117196.7A 2022-02-08 2022-02-08 Graphite oxide-based ultrafiltration membrane drying device Pending CN116608668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210117196.7A CN116608668A (en) 2022-02-08 2022-02-08 Graphite oxide-based ultrafiltration membrane drying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210117196.7A CN116608668A (en) 2022-02-08 2022-02-08 Graphite oxide-based ultrafiltration membrane drying device

Publications (1)

Publication Number Publication Date
CN116608668A true CN116608668A (en) 2023-08-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210117196.7A Pending CN116608668A (en) 2022-02-08 2022-02-08 Graphite oxide-based ultrafiltration membrane drying device

Country Status (1)

Country Link
CN (1) CN116608668A (en)

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