CN113117531A - Preparation method of polymer-based zinc oxide nanofiber filtering membrane - Google Patents
Preparation method of polymer-based zinc oxide nanofiber filtering membrane Download PDFInfo
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- CN113117531A CN113117531A CN202110246730.XA CN202110246730A CN113117531A CN 113117531 A CN113117531 A CN 113117531A CN 202110246730 A CN202110246730 A CN 202110246730A CN 113117531 A CN113117531 A CN 113117531A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0079—Manufacture of membranes comprising organic and inorganic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/56—Mixers with shaking, oscillating, or vibrating mechanisms having a vibrating receptacle provided with stirring elements, e.g. independent stirring elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/70—Drives therefor, e.g. crank mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/32005—Type of drive
- B01F35/3204—Motor driven, i.e. by means of an electric or IC motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/324—Driving independent stirrer shafts, i.e. not fitted on the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/325—Driving reciprocating or oscillating stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0015—Electro-spinning characterised by the initial state of the material
- D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
- D01D5/0046—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion the fibre formed by coagulation, i.e. wet electro-spinning
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F2035/99—Heating
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention belongs to the technical field of ultrapure water treatment, and particularly relates to a preparation method of a polymer-based zinc oxide nanofiber filtering membrane, which comprises the following steps: the method comprises the following steps: uniformly blending the zinc oxide precursor and the polymer by using a stirring device to obtain an electrostatic spinning solution; step two, the solution of electrostatic spinning is sent to a spinning machine by a circulating pipeline, is metered by a metering pump, then enters a spinning nozzle through a candle filter and a connecting pipe, the solution trickle extruded from a spinneret hole enters a coagulating bath, the solvent in the solution trickle diffuses to the coagulating bath, and the coagulant permeates to the trickle, so that the solution trickle reaches the critical concentration; the reciprocating assembly provided by the invention has a simple structure, enables the solution to be stirred uniformly, has a good mixing effect, improves the working efficiency and the product quality, is convenient to install and fix the stirring cylinder due to the arranged fixed assembly, is time-saving and labor-saving, and is also convenient to clean the stirring cylinder.
Description
Technical Field
The invention belongs to the technical field of polymer-based zinc oxide nanofiber filtering membranes, and particularly relates to a preparation method of a polymer-based zinc oxide nanofiber filtering membrane.
Background
Polymers generally refer to compounds having a relative molecular mass of several thousand to several million, and most of high molecular compounds are mixtures of many homologues having different relative molecular masses, so that the relative molecular mass of a high molecular compound is an average relative molecular weight; the zinc oxide is an inorganic substance, is an oxide of zinc, is a commonly used chemical additive, is widely applied to the manufacture of products such as plastics, silicate products, synthetic rubber, lubricating oil, paint coating, ointment, adhesive, food, batteries, flame retardant and the like, and a stirring device is needed in the preparation of polymer-based zinc oxide nanofiber filtering membranes, but the existing stirring device is troublesome to operate and has poor stirring effect on solution, so that the produced products have low qualified filtration rate, and the solution mixing efficiency is reduced, thereby reducing the working efficiency and being not worth of wide popularization and application.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method for preparing a polymer-based zinc oxide nanofiber filtering membrane, which uses wet spinning and hydrothermal synthesis methods to prepare the polymer-based zinc oxide nanofiber filtering membrane, and according to the object of the present invention, provides a method for preparing a polymer-based zinc oxide nanofiber filtering membrane, which comprises the following steps:
1. a preparation method of a polymer-based zinc oxide nanofiber filtering membrane comprises the following steps:
the method comprises the following steps: uniformly blending the zinc oxide precursor and the polymer by using a stirring device to obtain an electrostatic spinning solution;
step two, the solution of electrostatic spinning is sent to a spinning machine by a circulating pipeline, is metered by a metering pump, then enters a spinning nozzle through a candle filter and a connecting pipe, the solution trickle extruded from a spinneret hole enters a coagulating bath, the solvent in the solution trickle diffuses towards the coagulating bath, and the coagulant permeates towards the trickle, so that the solution trickle reaches the critical concentration, and is separated out in the coagulating bath to form fibers, thereby forming the fiber composite material with the zinc oxide precursor;
step three: treating the fiber composite material at low temperature, preserving heat for 5 hours to prepare zinc oxide nano particles, then putting nano fibers of the zinc oxide nano particles into a specially-made closed reaction container through hydrothermal treatment, adopting an aqueous solution as a reaction medium, heating the reaction container to create a reaction environment with the high temperature of 80-200 ℃ and the high pressure of 2-100 MPa, preserving heat for a certain period of time to enable the ZnO nano particles on the surface and inside of the nano fibers to grow into zinc oxide nano wires in a self-assembly manner, forming polymer fiber-based zinc oxide nano wire fibers, then opening a reaction kettle, and taking out the prepared nano fiber film;
and step four, naturally cooling to room temperature in the air, cleaning with distilled water, and drying in an oven at 80 ℃ to obtain the polymer-based zinc oxide nanofiber filtering membrane.
Preferably, in the first step, the zinc oxide precursor and the polymer are heated and stirred for 2.5 hours at a temperature of 80 to 150 ℃.
Preferably, in the third step, the temperature of the low-temperature treatment is 80-140 ℃.
Preferably, in the first step, the mass fraction ratio of the zinc oxide precursor to the polymer is 3: 2.
Preferably, in the first step, the stirring device comprises a working box, a reciprocating assembly and a fixing assembly, wherein the reciprocating assembly is arranged on the inner wall of the bottom end of the working box, and the fixing assembly is arranged on the outer wall of the reciprocating assembly;
the reciprocating component comprises a second rotating motor, a disc, a lug, a supporting plate, a first moving groove, a sleeve, a limiting rod, a mounting seat, a placing groove and a mixing drum, a second rotating motor is fixed on the inner wall of the bottom end of the working box through a bolt, a disc is fixedly sleeved on one end of an output shaft of the second rotating motor, the outer wall of one side of the disc is welded with a convex block, the inner wall of the bottom end of the working box, which is positioned at the two sides of the second rotating motor, is distributed and welded with a sleeve, limiting rods are inserted in the sleeve, a mounting seat is welded on the outer wall between the limiting rods, a supporting plate is welded on the outer wall of the bottom end of the mounting seat, a first moving groove is arranged on the outer wall of one side of the supporting plate corresponding to the lug, and the outer wall of the lug is attached to the inner wall of the first moving groove, a placing groove is formed in the outer wall of the top end of the mounting seat, and a stirring cylinder is placed on the inner wall of the placing groove.
Preferably, the fixing assembly comprises a mounting groove, arc-shaped clamping rods, a second moving groove, a double-headed rotating motor, a lead screw, a moving block, a spring, a sliding block and a sliding groove, the mounting groove is formed in the inner walls of the two sides of the mounting groove, the arc-shaped clamping rods are symmetrically and rotatably mounted on the inner wall of the bottom end of the mounting groove corresponding to the mounting groove, the second moving groove is formed in the outer wall of the other end of each arc-shaped clamping rod, the double-headed rotating motor is fixed on the inner wall of the bottom end of the mounting groove between the arc-shaped clamping rods through bolts, the lead screws are symmetrically and fixedly connected to the outer walls of the two ends of the output shaft of the double-headed rotating motor corresponding to the second moving groove and penetrate through the inner part of the second moving groove, the moving block is sleeved on the outer wall of one side of the second moving groove of the lead screw, the outer wall of the screw rod, which is positioned on the other side of the second moving groove, is sleeved with a spring, and two ends of the spring are sequentially contacted with the arc-shaped clamping rod and the outer wall of one side of the double-head rotating motor.
Preferably, a box cover is installed on the outer wall of the top end of the working box, a first rotating motor is fixedly installed on the outer wall of the top end of the box cover, and a stirring blade is fixedly connected to one end, located inside the working box, of an output shaft of the first rotating motor.
Preferably, handles are symmetrically welded to the outer wall of the top end of the box cover located on two sides of the first rotating motor.
Preferably, the four corners of the outer wall of the bottom end of the working box are welded with supporting legs.
Preferably, a spiral heating wire is fixedly arranged on the inner wall of the bottom end of the placing groove.
The invention has the following beneficial effects: the temperature of the low-temperature treatment is 80-140 ℃, the process for preparing the zinc oxide nano particles can obtain uniformly dispersed zinc oxide nano particles, greatly reduces the high-temperature (more than 350 ℃) preparation energy consumption of the traditional zinc oxide nano wire, radically changes the process of the zinc oxide nano particles, saves energy, is environment-friendly, greatly reduces the cost, greatly enhances the strength and flexibility of a zinc oxide nano fiber membrane, enlarges the product application of the zinc oxide nano wire fiber membrane, and drives a stirring cylinder on a mounting seat to reciprocate up and down through the matching of a second rotating motor, a disc, a lug, a supporting plate and a first moving groove The cooperation of second shifting chute, double-end rotating electrical machines, lead screw, movable block and spring is conveniently installed and is fixed the churn, and labour saving and time saving relatively also conveniently washs the churn, and is more practical, is worth extensively popularizing and applying.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of the preparation of a polymer-based zinc oxide nanofiber filter membrane in the present invention;
FIG. 2 is a schematic perspective cut-away view of the stirring device of the present invention;
FIG. 3 is a sectional view of the stirring device in the present invention, viewed from above;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
in the figure: 1. a work box; 2. a box cover; 3. a first rotating electrical machine; 4. stirring blades; 5. a handle; 6. supporting legs; 7. a reciprocating assembly; 8. a fixing assembly; 9. a spiral heating wire; 71. a second rotating electrical machine; 72. a disc; 73. a bump; 74. a support plate; 75. a first moving slot; 76. a sleeve; 77. a limiting rod; 78. a mounting seat; 79. a placement groove; 710. a mixing drum; 81. mounting grooves; 82. an arc-shaped clamping rod; 83. a second moving slot; 84. a double-headed rotating electrical machine; 85. a screw rod; 86. a moving block; 87. a spring; 88. a slider; 89. a chute.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.
With reference to figures 1-4 of the drawings,
1. a preparation method of a polymer-based zinc oxide nanofiber filtering membrane comprises the following steps:
the method comprises the following steps: uniformly blending the zinc oxide precursor and the polymer by using a stirring device to obtain an electrostatic spinning solution; the mass fraction ratio of the zinc oxide precursor to the polymer is 3: 2; heating and stirring the zinc oxide precursor and the polymer for 2.5 hours at the temperature of 80-150 ℃; the stirring device comprises a working box 1, a reciprocating component 7 and a fixing component 8, wherein the reciprocating component 7 is arranged on the inner wall of the bottom end of the working box 1, and the fixing component 8 is arranged on the outer wall of the reciprocating component 7; the reciprocating component 7 comprises a second rotating motor 71, a disc 72, a bump 73, a support plate 74, a first moving groove 75, a sleeve 76, a limiting rod 77, a mounting seat 78, a placing groove 79 and a mixing drum 710, the second rotating motor 71 is fixed on the inner wall of the bottom end of the working box 1 through bolts, the disc 72 is fixedly sleeved on one end of the output shaft of the second rotating motor 71, the bump 73 is welded on the outer wall of one side of the disc 72, the sleeves 76 are distributed and welded on the inner walls of the bottom ends of the working box 1 at the two sides of the second rotating motor 71, the limiting rod 77 is inserted inside the sleeve 76, the mounting seat 78 is welded on the outer wall between the limiting rods 77, the support plate 74 is welded on the outer wall of the bottom end of the mounting seat 78, the first moving groove 75 is formed on the outer wall of one side of the support plate 74 corresponding to the bump 73, the outer wall of the bump 73 is attached to the inner wall of the, a mixing drum 710 is arranged on the inner wall of the placing groove 79; the fixing component 8 comprises a mounting groove 81, an arc-shaped clamping rod 82, a second moving groove 83, a double-headed rotating motor 84, a lead screw 85, a moving block 86, a spring 87, a sliding block 88 and a sliding groove 89, wherein the mounting groove 81 is formed on the inner walls of the two sides of the mounting groove 79, the arc-shaped clamping rod 82 is symmetrically and rotatably mounted on the inner wall of the bottom end of the mounting groove 81 corresponding to the mounting groove 79, the second moving groove 83 is formed on the outer wall of the other end of the arc-shaped clamping rod 82, the double-headed rotating motor 84 is fixed on the inner wall of the bottom end of the mounting groove 81 between the arc-shaped clamping rods 82 through bolts, the lead screw 85 is symmetrically connected and fixed on the outer wall of the two ends of the output shaft of the double-headed rotating motor 84 corresponding to the second moving groove 83, the lead screw 85 penetrates through the second moving groove 83, the moving block 86 is sleeved on the, a sliding groove 89 is formed in the inner wall of the top end of the mounting groove 81 corresponding to the sliding block 88, a spring 87 is sleeved on the outer wall of the lead screw 85 positioned on the other side of the second moving groove 83, and two ends of the spring 87 are sequentially contacted with the arc-shaped clamping rod 82 and the outer wall of one side of the double-head rotating motor 84, so that the mixing drum 710 is convenient to mount, fix and dismount and is practical and convenient; the box cover 2 is installed on the outer wall of the top end of the working box 1, the first rotating motor 3 is installed and fixed on the outer wall of the top end of the box cover 2, and the stirring blade 4 is connected and fixed on one end, located inside the working box 1, of the output shaft of the first rotating motor 3, so that the solution in the stirring cylinder 710 can be stirred conveniently and practically; handles 5 are symmetrically welded on the outer walls of the top ends of the box cover 2, which are positioned at two sides of the first rotating motor 3, so that the box cover 2 is convenient to open, and labor is saved; supporting legs 6 are welded at four corners of the outer wall of the bottom end of the working box 1, so that the equipment can be stably supported; the spiral heating wire 9 is fixedly arranged on the inner wall of the bottom end of the placing groove 79, so that the stirring drum 710 is conveniently heated, and the heating device is practical;
step two, the solution of electrostatic spinning is sent to a spinning machine by a circulating pipeline, is metered by a metering pump, then enters a spinning nozzle through a candle filter and a connecting pipe, the solution trickle extruded from a spinneret hole enters a coagulating bath, the solvent in the solution trickle diffuses towards the coagulating bath, and the coagulant permeates towards the trickle, so that the solution trickle reaches the critical concentration, and is separated out in the coagulating bath to form fibers, thereby forming the fiber composite material with the zinc oxide precursor;
step three: the preparation method comprises the following steps of (1) carrying out low-temperature treatment on a fiber composite material at the temperature of 80-140 ℃, carrying out heat preservation for 5 hours to prepare zinc oxide nano particles, then carrying out hydrothermal treatment, putting nano fibers of the zinc oxide nano particles into a specially-made closed reaction container, adopting an aqueous solution as a reaction medium, heating the reaction container to create a reaction environment with the high temperature of 80-200 ℃ and the high pressure of 2-100 MPa, carrying out heat preservation growth for a certain time to enable the ZnO nano particles on the surface and in the nano fibers to grow into zinc oxide nano wires in a self-assembly manner to form polymer fiber-based zinc oxide nano wire fibers, then opening a reaction kettle, and taking out a prepared nano fiber film;
and step four, naturally cooling to room temperature in the air, cleaning with distilled water, and drying in an oven at 80 ℃ to obtain the polymer-based zinc oxide nanofiber filtering membrane.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A preparation method of a polymer-based zinc oxide nanofiber filtering membrane is characterized by comprising the following steps:
the method comprises the following steps: uniformly blending the zinc oxide precursor and the polymer by using a stirring device to obtain an electrostatic spinning solution;
step two, the solution of electrostatic spinning is sent to a spinning machine by a circulating pipeline, is metered by a metering pump, then enters a spinning nozzle through a candle filter and a connecting pipe, the solution trickle extruded from a spinneret hole enters a coagulating bath, the solvent in the solution trickle diffuses towards the coagulating bath, and the coagulant permeates towards the trickle, so that the solution trickle reaches the critical concentration, and is separated out in the coagulating bath to form fibers, thereby forming the fiber composite material with the zinc oxide precursor;
step three: treating the fiber composite material at low temperature, preserving heat for 5 hours to prepare zinc oxide nano particles, then putting nano fibers of the zinc oxide nano particles into a specially-made closed reaction container through hydrothermal treatment, adopting an aqueous solution as a reaction medium, heating the reaction container to create a reaction environment with the high temperature of 80-200 ℃ and the high pressure of 2-100 MPa, preserving heat for a certain period of time to enable the ZnO nano particles on the surface and inside of the nano fibers to grow into zinc oxide nano wires in a self-assembly manner, forming polymer fiber-based zinc oxide nano wire fibers, then opening a reaction kettle, and taking out the prepared nano fiber film;
and step four, naturally cooling to room temperature in the air, cleaning with distilled water, and drying in an oven at 80 ℃ to obtain the polymer-based zinc oxide nanofiber filtering membrane.
2. The method for preparing the polymer-based zinc oxide nanofiber filter membrane according to claim 1, wherein: in the first step, the zinc oxide precursor and the polymer are heated and stirred for 2.5 hours at the temperature of 80-150 ℃.
3. The method for preparing the polymer-based zinc oxide nanofiber filter membrane according to claim 1, wherein: in the third step, the temperature of the low-temperature treatment is 80-140 ℃.
4. The method for preparing the polymer-based zinc oxide nanofiber filter membrane according to claim 1, wherein: in the first step, the mass fraction ratio of the zinc oxide precursor to the polymer is 3: 2.
5. The method for preparing the polymer-based zinc oxide nanofiber filter membrane according to claim 1, wherein: in the first step, the stirring device comprises a working box (1), a reciprocating assembly (7) and a fixing assembly (8), wherein the reciprocating assembly (7) is arranged on the inner wall of the bottom end of the working box (1), and the fixing assembly (8) is arranged on the outer wall of the reciprocating assembly (7);
the reciprocating component (7) comprises a second rotating motor (71), a disc (72), a convex block (73), a support plate (74), a first moving groove (75), a sleeve (76), a limiting rod (77), a mounting seat (78), a placing groove (79) and a stirring cylinder (710), the second rotating motor (71) is fixed on the inner wall of the bottom end of the working box (1) through bolts, the disc (72) is fixedly sleeved on one end of an output shaft of the second rotating motor (71), the convex block (73) is welded on the outer wall of one side of the disc (72), the sleeve (76) is distributed and welded on the inner wall of the bottom end of the working box (1) positioned at two sides of the second rotating motor (71), the limiting rod (77) is inserted in the sleeve (76), the mounting seat (78) is welded on the outer wall between the limiting rods (77), the support plate (74) is welded on the outer wall of the bottom end of the mounting seat (78), the stirring device is characterized in that a first moving groove (75) is formed in the outer wall of one side of the supporting plate (74) corresponding to the protruding block (73), the outer wall of the protruding block (73) is attached to the inner wall of the first moving groove (75), a placing groove (79) is formed in the outer wall of the top end of the mounting seat (78), and a stirring drum (710) is placed on the inner wall of the placing groove (79).
6. The method for preparing the polymer-based zinc oxide nanofiber filtering membrane according to claim 5, characterized in that: the fixing component (8) comprises a mounting groove (81), arc-shaped clamping rods (82), a second moving groove (83), a double-head rotating motor (84), a screw rod (85), a moving block (86), a spring (87), a sliding block (88) and a sliding groove (89), wherein the mounting groove (81) is formed in the inner walls of the two sides of the placing groove (79), the arc-shaped clamping rods (82) are symmetrically and rotatably mounted on the inner wall of the bottom end of the mounting groove (81) corresponding to the placing groove (79), the second moving groove (83) is formed in the outer wall of the other end of each arc-shaped clamping rod (82), the double-head rotating motor (84) is fixedly bolted on the inner wall of the bottom end of the mounting groove (81) positioned between the arc-shaped clamping rods (82), the screw rod (85) is symmetrically connected and fixed on the outer walls of the two ends of the output shaft of the double-head rotating motor (84) corresponding to the second, the outer wall of the lead screw (85) on one side of the second moving groove (83) is sleeved with a moving block (86), the moving block (86) is in threaded connection with the lead screw (85), a sliding block (88) is welded on the outer wall of the bottom end of the moving block (86), a sliding groove (89) is formed in the inner wall of the top end of the mounting groove (81) and corresponds to the sliding block (88), a spring (87) is sleeved on the outer wall of the lead screw (85) on the other side of the second moving groove (83), and two ends of the spring (87) are in contact with the outer wall of one side of the arc-shaped clamping rod (82) and the outer wall of one side of the.
7. The method for preparing the polymer-based zinc oxide nanofiber filtering membrane according to claim 5, characterized in that: install case lid (2) on the top outer wall of work box (1), the top outer wall mounting of case lid (2) is fixed with first rotating electrical machines (3), it is fixed with stirring leaf (4) to be located one of work box (1) inside end connection of first rotating electrical machines (3) output shaft.
8. The method for preparing the polymer-based zinc oxide nanofiber filtering membrane according to claim 5, characterized in that: handles (5) are symmetrically welded on the outer wall of the top end of the box cover (2) at two sides of the first rotating motor (3).
9. The method for preparing the polymer-based zinc oxide nanofiber filtering membrane according to claim 5, characterized in that: supporting legs (6) are welded at four corners of the outer wall of the bottom end of the working box (1).
10. The method for preparing the polymer-based zinc oxide nanofiber filtering membrane according to claim 5, characterized in that: and a spiral heating wire (9) is fixedly arranged on the inner wall of the bottom end of the placing groove (79).
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| CN202110246730.XA CN113117531A (en) | 2021-03-05 | 2021-03-05 | Preparation method of polymer-based zinc oxide nanofiber filtering membrane |
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| CN209540432U (en) * | 2018-11-22 | 2019-10-25 | 西安欧格信息科技有限公司 | It is a kind of with the forest fire protection equipment monitored automatically |
| CN211026073U (en) * | 2019-07-19 | 2020-07-17 | 孙光祥 | Artificial jade manufacturing device of fly ash |
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2021
- 2021-03-05 CN CN202110246730.XA patent/CN113117531A/en active Pending
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| CN204809423U (en) * | 2015-06-24 | 2015-11-25 | 天津市华电电力科技有限公司 | Insulating earth clamp |
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| CN106902683A (en) * | 2017-03-09 | 2017-06-30 | 查健春 | A kind of frock clamp spraying lacquer material dosing apparatus |
| CN207709093U (en) * | 2017-12-20 | 2018-08-10 | 杭州环析检测科技有限公司 | A kind of distillation townhouse formula holder |
| CN209540432U (en) * | 2018-11-22 | 2019-10-25 | 西安欧格信息科技有限公司 | It is a kind of with the forest fire protection equipment monitored automatically |
| CN211026073U (en) * | 2019-07-19 | 2020-07-17 | 孙光祥 | Artificial jade manufacturing device of fly ash |
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Application publication date: 20210716 |