Device for preparing hollow fiber membrane filaments through electrostatic spinning

Abstract

The utility model discloses a device for preparing hollow fiber membrane filaments through electrostatic spinning, which belongs to the technical field of preparation of hollow fiber membrane filaments and is characterized by comprising an electrostatic spinning machine body, a receiving structure and a spraying structure are respectively arranged on two sides inside the electrostatic spinning machine body, and the receiving structure and the spraying structure are matched for use. The two sides of the top of the electrostatic spinning machine body are in bolted connection with an exhaust fan and a dust blocking shell correspondingly, and the problems that in the existing process of preparing membrane filaments through electrostatic spinning, a polymer solution for preparing the membrane filaments is generally composed of polymers, filler, auxiliaries and the like, polymer fibers are shaped along with volatilization of solvent waste gas, and the membrane filaments are prone to falling off are solved. The problems that in the prior art, as spinning waste gas is mainly composed of an added solvent and tiny dust formed by a small amount of micro-plastic and filler, a device for preparing hollow fiber membrane filaments through electrostatic spinning directly discharges waste gas, the atmospheric environment can be polluted, human health can be affected when the waste gas is inhaled by a human body, and the using effect is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hollow fiber membrane filament preparation, in particular to a device for preparing hollow fiber membrane filaments by electrostatic spinning. Background Art

[0002] Hollow fiber membrane refers to a membrane that is fibrous in appearance and has a self-supporting function. The hollow fiber membrane is made of polysulfone and dimethylacetamide as raw materials to form a fiber filament with a hollow inner cavity, which is then divided by a high permeability polymer and has selective permeability characteristics.

[0003] Hollow fiber membranes are mainly prepared by electrospinning technology, in which the polymer solution for preparing the membrane filaments is stretched and sprayed through an electric field to form fibers.

[0004] In the existing process of preparing membrane filaments by electrospinning, the polymer solution for preparing membrane filaments is generally composed of polymers, fillers, additives, etc. As the solvent waste gas evaporates, the polymer fibers are shaped. Since the spinning waste gas is mainly composed of added solvents and a small amount of microplastics and dust formed by fillers, the device for preparing hollow fiber membrane filaments by electrospinning directly discharges the waste gas, which will pollute the atmospheric environment and affect human health if inhaled. Utility Model Content

[0005] The utility model provides an apparatus for preparing hollow fiber membrane filaments by electrospinning, aiming to solve the problem that in the existing process of preparing membrane filaments by electrospinning, the polymer solution for preparing the membrane filaments is generally composed of polymers, fillers, additives, etc., and the polymer fibers are shaped as the solvent waste gas evaporates. Since the spinning waste gas components are mainly composed of added solvents and dust formed by a small amount of microplastics and fillers, and the apparatus for preparing hollow fiber membrane filaments by electrospinning directly discharges the waste gas, it will pollute the atmospheric environment, and inhalation by the human body will affect human health, thereby affecting the use effect.

[0006] The utility model is implemented as follows: an electrostatic spinning device for preparing hollow fiber membrane filaments comprises an electrostatic spinning body, wherein a receiving structure and an injection structure are respectively arranged on two sides of the interior of the electrostatic spinning body, and the two structures are used in coordination with each other, an exhaust fan and a dust blocking shell are respectively bolted to two sides of the top of the electrostatic spinning body, the exhaust fan is connected to the dust blocking shell, an interception component is bolted to the top of the interior of the dust blocking shell, a processing shell is bolted to the bottom of the dust blocking shell, a dust collecting component is bolted to the interior of the processing shell, and the dust collecting component is used in coordination with the interception component;

[0007] The interception assembly includes a mounting plate, which is bolted to the top of the dust blocking shell, and a plurality of filter bags are installed through the mounting plate. The top of the filter bag is provided with an injection pipe, and the top of the injection pipe is connected to the main pipe.

[0008] In order to achieve the effect of airflow cleaning of the filter bag, as a preferred device for preparing hollow fiber membrane filaments by electrospinning of the utility model, the left side of the main pipe extends to the left side of the dust blocking shell and is connected to an electric control valve pipe, and the bottom of the electric control valve pipe is connected to an air storage tank.

[0009] In order to achieve the effect of improving the dust removal quality, as a preferred device for preparing hollow fiber membrane filaments by electrospinning of the utility model, the number of the filter bags is set to be several, and they are distributed in a rectangular shape inside the mounting plate, and the two adjacent filter bags are arranged equidistantly.

[0010] In order to achieve the effect of fixing the position of the main pipe, as a preferred device for preparing hollow fiber membrane filaments by electrospinning of the utility model, a fixing plate is bolted to the right side of the main pipe, a plurality of support plates are bolted to the top of the fixing plate, and the support plates are bolted to the inner wall of the dust blocking shell.

[0011] In order to achieve the effect of adsorbing dust during the cleaning process of the interception component, as a preferred device for preparing hollow fiber membrane filaments by electrospinning of the utility model, the dust collecting component includes a connecting plate, which is bolted to the inside of the processing shell, and a plurality of dust collecting plates are bolted to the top of the connecting plate, and two metal rods are arranged between the opposite sides of the two dust collecting plates, and a plurality of discharge needles are bolted on both sides of the metal rod, and the two metal rods on the front and rear sides are connected by metal material.

[0012] In order to achieve the effect of forming an electric field to adsorb dust when used in conjunction with a discharge needle, the device for preparing hollow fiber membrane filaments by electrospinning is preferably used in the utility model. The dust collecting plate includes a dust collecting shell, which is bolted to the top of the connecting plate, and an anode plate is bolted to the inside of the dust collecting shell, and a number of dust collecting holes are provided on both sides of the dust collecting shell.

[0013] In order to achieve the effect of discharging dust from the surface of the anode plate, as a preferred device for preparing hollow fiber membrane filaments by electrospinning of the utility model, the bottom of the anode plate passes through the interior of the connecting plate, and the interior of the connecting plate is provided with dust collection holes for use with the anode plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The device for preparing hollow fiber membrane filaments by electrospinning can prepare hollow fiber membrane filaments based on the electrospinning technology by providing an electrospinning body, a receiving structure and an injection structure, and through the provided interception component, the solvent volatilized in the preparation process can be sent to the dust interception shell through the exhaust fan, so that the interception component can purify the dust in the exhaust gas, thereby having the effect of protecting the environment, and through the provided dust collection component, the dust generated in the cleaning process of the interception component can be adsorbed after the interception component has been used for a certain period of time, thereby achieving the effect of centralized treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural diagram of the device for preparing hollow fiber membrane filaments by electrospinning of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the electrospinning machine in the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the dust-blocking housing in the utility model;

[0019] Figure 4 It is a top view schematic diagram of the dust collecting assembly in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the dust collecting plate in the utility model;

[0021] Figure 6 For this utility model Figure 3 A magnified schematic diagram of center A.

[0022] In the figure, 1. electrospinning body; 2. receiving structure; 3. injection structure; 4. exhaust fan; 5. dust-blocking shell; 6. interception component; 601. mounting plate; 602. filter bag; 603. injection pipe; 604. main pipe; 7. processing shell; 8. dust collecting component; 801. connecting plate; 802. dust collecting plate; 8021. dust collecting shell; 8022. anode plate; 8023. dust collecting hole; 803. metal rod; 504. discharge needle; 9. electric control valve tube; 10. gas storage tank; 11. fixing plate; 12. support plate; 13. ash dropping hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] See also Figure 1-6 The utility model provides a technical solution: an electrostatic spinning device for preparing hollow fiber membrane filaments, comprising an electrostatic spinning body 1, a receiving structure 2 and an injection structure 3 are respectively arranged on both sides of the interior of the electrostatic spinning body 1, and the two are used in conjunction with each other, an exhaust fan 4 and a dust blocking shell 5 are respectively bolted on both sides of the top of the electrostatic spinning body 1, the exhaust fan 4 is connected to the dust blocking shell 5, an interception component 6 is bolted on the top of the dust blocking shell 5, a processing shell 7 is bolted on the bottom of the dust blocking shell 5, a dust collecting component 8 is bolted on the interior of the processing shell 7, and the dust collecting component 8 is used in conjunction with the interception component 6;

[0026] The interception assembly 6 includes a mounting plate 601, which is bolted to the top of the dust blocking shell 5. Several filter bags 602 are installed inside the mounting plate 601, and an injection pipe 603 is provided on the top of the filter bag 602. The top of the injection pipe 603 is connected to the main pipe 604.

[0027] In this embodiment: by setting up an electrospinning body 1, a receiving structure 2 and an injection structure 3, hollow fiber membrane filaments can be prepared based on the electrospinning technology, and by setting up an intercepting component 6, the solvent volatilized in the preparation process can be sent to the dust intercepting shell 5 through the exhaust fan 4, so that the intercepting component 6 can purify the dust in the exhaust gas, thereby having the effect of protecting the environment, and by setting up a dust collecting component 8, after the intercepting component 6 has been used for a certain period of time, the dust generated in the cleaning process can be adsorbed to achieve the effect of centralized treatment.

[0028] As a technical optimization solution of the utility model, the left side of the main pipe 604 extends to the left side of the dust blocking shell 5 and is connected to the electric control valve pipe 9, and the bottom of the electric control valve pipe 9 is connected to the air storage tank 10.

[0029] In this embodiment, by providing the electric control valve tube 9 and the air storage tank 10, the effect of airflow-type dust cleaning of the filter bag 602 can be achieved.

[0030] As a technical optimization solution of the present invention, the number of filter bags 602 is set to be several and distributed in a rectangular shape inside the mounting plate 601 , and two adjacent filter bags 602 are arranged at equal distances.

[0031] In this embodiment, the filter bags 602 are arranged in a rectangular shape inside the mounting plate 601, and two adjacent filter bags 602 are arranged at equal distances, thereby achieving the effect of improving the dust removal quality.

[0032] As a technical optimization solution of the present invention, a fixing plate 11 is bolted to the right side of the main pipe 604 , a plurality of support plates 12 are bolted to the top of the fixing plate 11 , and the support plates 12 are bolted to the inner wall of the dust blocking shell 5 .

[0033] In this embodiment, by providing the fixing plate 11 and the supporting plate 12 , the right end of the main pipe 604 can be fixed, thereby ensuring that the position of the main pipe 604 is fixed.

[0034] As a technical optimization solution of the utility model, the dust collecting component 8 includes a connecting plate 801, which is bolted to the inside of the dust collecting shell 8021. A plurality of dust collecting plates 802 are bolted to the top of the connecting plate 801, and two metal rods 803 are arranged between the opposite sides of the two dust collecting plates 802. A plurality of discharge needles 504 are bolted to both sides of the metal rod 803, and the two metal rods 803 on the front and rear sides are connected by metal material.

[0035] In this embodiment: by setting up the dust collecting component 8, the intercepting component 6 intercepts the dust generated in the cleaning process after a certain period of use. Since the cathode line is formed between the metal rod 803 and the discharge needle 504, an electric field is formed between the dust collecting plate 802 for adsorption. The principle of electrostatic dust removal is used to capture the dust collecting plate 802, thereby achieving the effect of centralized treatment of the dust.

[0036] As a technical optimization solution of the utility model, the dust collecting plate 802 includes a dust collecting shell 8021, which is bolted to the top of the connecting plate 801, an anode plate 8022 is bolted inside the dust collecting shell 8021, and a plurality of dust collecting holes 8023 are opened on both sides of the dust collecting shell 8021.

[0037] In this embodiment: by setting the dust collecting plate 802, the anode plate 8022 is used in conjunction with the metal rod 803 and the discharge needle 504, based on the principle of electrostatic dust removal, the dust passes through the dust collecting hole 8023 and is adsorbed on the anode plate 8022, thereby achieving the effect of concentrated dust collection.

[0038] As a technical optimization solution of the present invention, the bottom of the anode plate 8022 passes through the interior of the connecting plate 801 , and an ash drop hole 13 for use with the anode plate 8022 is opened inside the connecting plate 801 .

[0039] In this embodiment: by setting the ash dropping holes 13, after the electric field is closed and the adsorption capacity is lost, under the action of gravity, the dust on the anode plate 8022 flows from top to bottom along the anode plate 8022 and passes through the ash dropping holes 13 into the dust collecting shell 8021, which is convenient for subsequent processing.

[0040] Working principle: First, the polymer solution for preparing membrane filaments is stretched and sprayed through the electric field by the injection structure 3, so that hollow fiber membrane filaments are formed in the receiving structure 2, and the solvent volatilized in the preparation process is sent to the dust-blocking shell 5 through the exhaust fan 4 during the preparation process, so that the exhaust gas passes through the filter bag 602, and the dust entrained by it adheres to the surface of the filter bag 602, and the purified exhaust gas is discharged from the inside of the dust-blocking shell 5, completing the dust removal work of the exhaust gas. After the filter bag 602 has been used for a certain period of time, the high-pressure gas in the gas storage tank 10 can be opened by the electric control valve pipe 9 to enter the filter through the main pipe 604 and the injection pipe 603. Inside the bag 602, with the help of high-pressure gas, the filter bag 602 expands and vibrates from the bag mouth to the bottom, causing the attached dust layer to leave the surface of the filter bag 602 and fall under the action of gravity. Then, the metal plate and the discharge needle 504 are energized to form a cathode line, so that a non-uniform electric field is formed between the anode plate 8022. Using the principle of electrostatic dust removal, the dust passes through the dust collecting hole 8023 and is adsorbed on the anode plate 8022. Finally, after the electric field is turned off and the adsorption capacity is lost, under the action of gravity, the dust on the anode plate 8022 moves from top to bottom along the anode plate 8022 and through the ash falling hole 13 into the dust collecting shell 8021 for centralized treatment.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrospinning device for preparing hollow fiber membrane filaments, comprising an electrospinning body (1), characterized in that: A receiving structure (2) and an ejection structure (3) are respectively arranged on two sides of the interior of the electrostatic spinning machine body (1), and the two are used in coordination with each other; an exhaust fan (4) and a dust blocking shell (5) are respectively bolted to two sides of the top of the electrostatic spinning machine body (1); the exhaust fan (4) is connected to the dust blocking shell (5); an interception component (6) is bolted to the top of the interior of the dust blocking shell (5); a processing shell (7) is bolted to the bottom of the dust blocking shell (5); a dust collection component (8) is bolted to the interior of the processing shell (7); and the dust collection component (8) is used in coordination with the interception component (6); The interception assembly (6) comprises a mounting plate (601), the mounting plate (601) being bolted to the top of the interior of the dust blocking housing (5), a plurality of filter bags (602) being installed through the interior of the mounting plate (601), and a spray pipe (603) being arranged at the top of the filter bag (602), the top of the spray pipe (603) being connected to a main pipe (604).

2. The device for preparing hollow fiber membrane by electrospinning according to claim 1, characterized in that: The left side of the main pipe (604) extends to the left side of the dust blocking housing (5) and is connected to an electric control valve pipe (9); the bottom of the electric control valve pipe (9) is connected to an air storage tank (10).

3. The device for preparing hollow fiber membrane by electrospinning according to claim 1, characterized in that: The number of the filter bags (602) is set to be a plurality and they are distributed in a rectangular shape inside the mounting plate (601), and two adjacent filter bags (602) are arranged at equal distances.

4. The device for preparing hollow fiber membrane by electrospinning according to claim 1, characterized in that: A fixing plate (11) is bolted to the right side of the main pipe (604), a plurality of support plates (12) are bolted to the top of the fixing plate (11), and the support plates (12) are bolted to the inner wall of the dust blocking shell (5).

5. The device for preparing hollow fiber membrane by electrospinning according to claim 1, characterized in that: The dust collecting assembly (8) comprises a connecting plate (801), the connecting plate (801) being bolted to the inside of the processing shell (7), a plurality of dust collecting plates (802) being bolted to the top of the connecting plate (801), and two metal rods (803) being arranged between opposite sides of two dust collecting plates (802), a plurality of discharge needles (504) being bolted to both sides of the metal rods (803), and the two metal rods (803) on the front and rear sides being connected by metal material.

6. The device for preparing hollow fiber membrane by electrospinning according to claim 5, characterized in that: The dust collecting plate (802) comprises a dust collecting shell (8021), the dust collecting shell (8021) is bolted to the top of the connecting plate (801), an anode plate (8022) is bolted inside the dust collecting shell (8021), and a plurality of dust collecting holes (8023) are provided on both sides of the dust collecting shell (8021).

7. The device for preparing hollow fiber membrane by electrospinning according to claim 6, characterized in that: The bottom of the anode plate (8022) passes through the interior of the connecting plate (801), and an ash drop hole (13) for use with the anode plate (8022) is provided inside the connecting plate (801).

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