CN212284461U

CN212284461U - High-efficient filter media electret equipment

Info

Publication number: CN212284461U
Application number: CN202020460384.6U
Authority: CN
Inventors: 李志辉; 陈新卓
Original assignee: Liangzi Jinzhou Tianjin Non Woven Co ltd
Current assignee: Liangzi Jinzhou Tianjin Non Woven Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-01-05
Anticipated expiration: 2030-04-01

Abstract

The utility model discloses a high-efficient filter media electret equipment relates to filtering material's processing equipment technical field, set firmly in the backup pad of frame both sides including the frame with relatively, be provided with two electret units between two backup pads, two electret unit longitudinal symmetry and dislocation arrangement. The electret unit comprises an arc cover which is arranged at the middle part of the supporting plate in a lifting mode, a corona wire is arranged at the center of the arc cover, and a plurality of insulating guide rollers are arranged in the arc cover in a rotating mode. The two sides of the arc cover are respectively provided with a pole-standing bar in a lifting way, and two pole-standing rollers which are in one-to-one correspondence with the pole-standing bars are arranged between the upper pole-standing bar and the lower pole-standing bar in a rotating way. The arc cover and the electret roller are grounded, and the electret rod and the corona wire are both connected with a high-voltage generator. The utility model discloses an adjustment filter media pass through the route to the long demand of length of electret of different specification filter media of adaptation obtains different filtration efficiency's product. And the electret distance is adjustable, the single-sided/double-sided electret mode is switchable, the universality is good, and the method is particularly suitable for materials with high gram weight.

Description

High-efficient filter media electret equipment

Technical Field

The utility model relates to a filtering material's processing equipment technical field especially relates to a high-efficient filter media electret equipment.

Background

With the continuous development of social economy, environmental problems are increasingly prominent. The generation of haze weather causes that the air pollution problem is concerned by the masses and the countries. PM2.5, submicron-level viruses, chemical substances and the like are diffused and spread in the air, and the health of people is greatly harmed. Therefore, effective control of fine particulate matter and toxic and harmful chemical and biological substances in the air is of great importance. The use of air filtration materials is an important means of purifying air. The common air filtering material cannot completely remove fine particles, harmful microorganisms are easy to breed on the filtering material, the possibility of secondary pollution exists, and the electret air filtering material provides possibility for solving the problem. The electret air filtering material has the advantages of high efficiency, low resistance, energy conservation, antibiosis and the like, is a novel air filtering material with a very good application prospect, and is widely applied to the aspects of life sciences, clinical medicine, environmental purification engineering and the like in nearly two to thirty years.

Electrets were used as filter material and were initially made in 1976 by Tumb et al from polypropylene film cut into small strips which were processed to a crimped state to form electret fibers. The electret filter material is used for collecting dust particles by utilizing the electrostatic force action of electric charges. Fibers obtained from conventional melt-blown or spun-bonded processes are typically subjected to corona treatment or tribo-charging to render the fibers electrostatically charged, resulting in the formation of electret filter materials.

The electret equipment mainly adopts electrostatic electret, so that the air filtering material is more perfect, dust particles are trapped by the electrostatic force of electric charges, and the electret equipment is made of small strip-shaped polypropylene films. Chinese patent with patent publication No. CN209835177U proposes a novel electret device of melt-blown filter material, which comprises a bottom plate, wherein the upper surface of the bottom plate comprises supporting pillars, the upper surface of the bottom plate is welded with the bottom ends of the supporting pillars, the number of the supporting pillars is two, an electret device is arranged between the two supporting pillars, and the left and right sides of the electret device are welded with the opposite sides of the two supporting pillars respectively. The utility model discloses a through mutually supporting between threaded rod and the thread bush, reach and utilize the thread bush to rotate on the surface of threaded rod for can carry out spacing and dismantlement with the roller, through mutually supporting between solid fixed ring and the locating pin, reach and to advance the location with the roller when demolising, appear dropping when avoiding demolising, solved the novel electret equipment of present melt-blown filter material and after carrying out the electret, demolish the material of completion owing to be not convenient for, thereby can increase work burden, and reduced work efficiency's problem.

However, the technical scheme has the following problems that the time and the path of the electret equipment are uncontrollable, so that the resistance of the finished filter material cannot be controlled, and the electret filter material cannot be used for manufacturing various different filter materials.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-efficient filter media electret equipment, adjustable filter media pass through route and electret distance to adapt to the production demand of different specification filter media.

The utility model discloses a can realize through following technical scheme:

a high-efficiency filter material electret device comprises a rack and support plates oppositely and fixedly arranged on two sides of the rack, wherein two electret units are arranged between the two support plates, and the two electret units are vertically symmetrical and arranged in a staggered manner; the electret unit comprises an arc cover which is arranged in the middle of the supporting plate in a lifting mode, a corona wire is arranged in the center of the arc cover, a plurality of insulating guide rollers are arranged in the arc cover in a rotating mode, and a first lifting mechanism is arranged on the arc cover; two sides of the arc cover are respectively provided with a plurality of electret rods in a lifting way, two electret rollers which are in one-to-one correspondence with the electret rods are rotatably arranged between the upper electret rod and the lower electret rod, and the electret rods are provided with second lifting mechanisms; the circular arc cover, the electret roller is grounded, and the electret rod and the corona wire are both connected with a high-voltage generator.

By adopting the technical scheme, the high-voltage generator is electrified to form an electret electric field between the electret rod and the electret roller, the electret electric field is formed between the corona wire and the arc cover, and the filter material becomes a permanently charged fiber electret after passing through the electret electric field. According to the filter materials with different specifications, the electret distance between the electret rod and the electret roller can be adjusted through the second lifting mechanism, and the chargeable area is increased, so that the purpose of high-efficiency corona charging is achieved. The path of the filter material passing through the insulating guide roller is adjusted to adjust the time length of the filter material passing through the electret electric field, so that the electret requirements of different filter materials are met. The single-sided/double-sided electret of the filter material can be realized by changing the passing path of the filter material or adjusting the opening and closing of the high-voltage generators in the upper electret unit and the lower electret unit. For the filter material with high gram weight, the electret equipment effectively prolongs the electret electrifying time of the filter material, and the electret of the filter material obtains higher surface potential and charge storage property in a double-sided electret mode, so that the filtering efficiency of the filter material is improved, and the resistance of the filter material is reduced.

Further setting the following steps: the first lifting mechanism comprises lifting lead screws fixedly arranged at two ends of the arc cover, one end, far away from the arc cover, of each lifting lead screw is sleeved with a lead screw shaft sleeve fixedly connected with the rack, a worm wheel coaxially in threaded connection with the lifting lead screws is rotatably arranged in each lead screw shaft sleeve, a worm meshed with the worm wheel is rotatably arranged on the rack, and a rocking handle is fixedly arranged at one end of each worm.

Through adopting above-mentioned technical scheme, rotate the rocking handle and pass through the worm and drive the worm wheel and rotate for the lift lead screw drives the arc cover and slides from top to bottom, and the arc cover rebound back, the operating personnel of being convenient for adjust the trend of filter media on insulating guide roll.

Further setting the following steps: guide rails are fixedly arranged at two ends of the arc cover respectively, bases are fixedly arranged on two sides of the arc cover respectively, and sliding blocks in sliding fit with the guide rails are fixedly arranged on the bases.

By adopting the technical scheme, the guide rail is in sliding fit with the sliding block, the straightness of the up-and-down sliding of the arc cover is improved, and the stability and uniformity of the movement of the arc cover are ensured.

Further setting the following steps: the second lifting mechanism comprises an air cylinder fixedly arranged on the rack, and a piston rod of the air cylinder is fixedly connected with the electret rod.

By adopting the technical scheme, the cylinder controls the lifting of the electret rod so as to adjust the distance between the electret rod and the electret roller and adjust the optimal electret parameters according to different filter materials.

Further setting the following steps: and a plurality of static electricity generating needles are fixedly arranged on one side of the electret rod facing the electret roller at equal intervals, and the induction ends of the static electricity generating needles point to the electret roller.

By adopting the technical scheme, an electric field is formed between the static electricity generating needle and the electret roller, and corona electret treatment is carried out on the filter material, so that the filter material becomes a permanent electret, and micro dust in air is adsorbed to achieve a good filtering and adsorbing effect.

Further setting the following steps: the two ends of the rack are respectively provided with a material guide roller in a rotating mode, and a plurality of insulating traction rollers are arranged between the upper arc cover and the lower arc cover in a rotating mode.

Through adopting above-mentioned technical scheme, the setting up of guide roller and insulating carry over pinch rolls makes things convenient for the staff to wind around putting the filter media, plays direction and traction to the filter media.

Further setting the following steps: an operation opening is formed in the supporting plate.

By adopting the technical scheme, the filter cloth is convenient for workers to adjust the trend of the filter cloth so as to adjust the passing path of the filter material.

To sum up, the utility model discloses a beneficial technological effect does:

(1) the direction of the filter material between the upper electret unit and the lower electret unit is adjusted to adjust the time length of the filter material passing through an electret electric field, so that the electret time length requirement of the filter material with different specifications is met, and products with different filtering efficiencies are obtained. Meanwhile, the second lifting mechanism can adjust the optimal electret distance so as to adjust the chargeable area to adapt to the production requirements of different filter materials, thereby achieving the purpose of efficient corona charging.

(2) The filter material trend is changed or the high voltage generator of the upper electret unit and the lower electret unit is opened and closed, so that single-sided or double-sided electret can be realized, the adaptability is strong, and the universality is good.

(3) For the filtering material with high gram weight, the electret electrifying time of the filtering material is effectively prolonged, so that the electret of the filtering material obtains higher surface potential and charge storage property, the filtering efficiency of the filtering material is improved, and the resistance of the filtering material is reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 and one arrangement of the filter;

FIG. 4 is an enlarged schematic view of section B of FIG. 3;

FIG. 5 shows another arrangement of filter elements.

Reference numerals: 1. a frame; 2. a support plate; 3. an arc cover; 4. corona wire; 5. an insulating guide roller; 6. a electret rod; 7. an electret roller; 8. a lifting screw rod; 9. a lead screw shaft sleeve; 10. a worm gear; 11. a worm; 12. a rocking handle; 13. a guide rail; 14. a base; 15. a slider; 16. a cylinder; 17. a static electricity generating needle; 18. a material guide roller; 19. an insulating traction roller; 20. an operation port; 21. a filter material.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1 and 3, for the utility model discloses a high-efficient filter media electret device, including frame 1, the relative both sides that set up of frame 1 have set firmly backup pad 2 respectively, are provided with two electret units between two backup pads 2, and two electret units longitudinal symmetry and dislocation set. The electret unit comprises an arc cover 3 which is arranged at the middle part of the support plate 2 in a lifting mode, a corona wire 4 is arranged at the center of the arc cover 3, and the axis direction of the corona wire 4 is parallel to the axis direction of the arc cover 3. The arc cover 3 is grounded, the corona wire 4 is connected with a high-voltage generator, after the high-voltage generator is electrified, an electret electric field is formed between the corona wire 4 and the arc cover 3, and the filter material 21 becomes a permanently charged fiber electret after passing through the electret electric field. A plurality of insulating guide rollers 5 are arranged between the two supporting plates 2 through the rotation of the shaft rod, and the insulating guide rollers 5 are uniformly distributed in an annular shape by taking the corona wire 4 as the center. A plurality of insulating traction rollers 19 are rotatably arranged between the upper electret unit and the lower electret unit through shaft levers, and an operation opening 20 convenient for workers to adjust the trend of the filter cloth is arranged between the insulating traction rollers 19 on the supporting plate 2.

With reference to fig. 5, if necessary, the worker may adjust the direction of the filter material 21 between the insulating guide rollers 5 with reference to fig. 5 to adjust the duration of the filter material 21 passing through the electret electric field, so as to adapt to the electret duration requirements of filter materials 21 of different specifications and obtain products with different filtering efficiencies. Referring to fig. 3, the arrangement of the filter medium 21 can realize double-sided electret of the filter medium 21, referring to fig. 5, the single-sided electret of the filter medium 21 can be realized by adjusting the orientation of the filter medium 21 between the insulating guide rollers 5, or the switching of the single-sided/double-sided electret modes of the filter medium 21 can also be realized by controlling the on/off of the high voltage generators of the upper and lower electret units. It should be noted, however, that the filtering material 21 may have various orientations between the insulating guide rollers 5, and fig. 3 and 5 are merely examples of two of them and are not exhaustive.

Referring to fig. 4, be provided with first elevating system on the arc cover 3, first elevating system includes and sets firmly in the lift lead screw 8 at arc cover 3 both ends along vertical direction, the pot head that the arc cover 3 was kept away from to lift lead screw 8 is equipped with the lead screw axle sleeve 9 in frame 1 fixed connection, lead screw axle sleeve 9 passes through bolt fixed connection in frame 1, it is provided with worm wheel 10 to rotate through the bearing in lead screw axle sleeve 9, the internal thread is seted up in the center department of worm wheel 10, no matter the internal thread passes through threaded connection with the external screw thread of lift lead screw 8. A worm 11 meshed with the worm wheel 10 is rotatably arranged on the frame 1 through a bearing seat, and a rocking handle 12 is fixedly arranged at one end of the worm 11. Guide rails 13 are fixedly arranged at two ends of the arc cover 3 in the length direction, bases 14 are fixedly arranged on two sides of the arc cover 3 of the rack 1, and sliding blocks 15 in sliding fit with the guide rails 13 are fixedly arranged on the bases 14. The rocking handle 12 is rotated to drive the worm wheel 10 to rotate through the worm 11, so that the lifting screw rod 8 drives the arc cover 3 to slide up and down, and an operator can conveniently adjust the trend of the filter material 21 on the insulating guide roller 5.

Referring to fig. 1 and 2, two sides of the arc hood 3 are respectively provided with a electret rod 6 in a lifting manner, two electret rollers 7 corresponding to the upper electret rod and the lower electret rod 6 one by one are arranged between the upper electret rod and the lower electret rod through a shaft rod in a rotating manner, and the electret rods 6 and the electret rollers 7 corresponding to the electret rods are located on the same vertical plane. A plurality of electrostatic generation needles 17 which are arranged in a linear manner are fixedly arranged on one side of the electret rod 6 facing the electret roller 7 at equal intervals, and the induction ends of the electrostatic generation needles 17 point to the electret roller 7. The electret roller 7 is grounded, and the electret rod 6 is connected with a high-voltage generator. After the high voltage generator is connected, an electret electric field is formed between the electret rod 6 and the electret roller 7, and the filter material 21 becomes a permanently charged fibrous electret through the electret electric field. For electret materials with high gram weight, the electret electrifying time of the filter material 21 is effectively prolonged, so that the electret of the filter material 21 obtains higher surface potential and charge storage property, the filtering efficiency of the filter material 21 is improved, and the resistance of the filter material 21 is reduced. The two ends of the frame 1 in the feeding direction are respectively provided with a material guide roller 18 through a shaft lever in a rotating way, and the supporting plate 2 is also provided with an operation opening 20 which is convenient for a worker to wind the filter cloth on the electret roller 7.

And a second lifting mechanism is arranged on the electret rod 6 and comprises two cylinders 16 fixedly arranged at the top of the frame 1, and piston rods of the two cylinders 16 are fixedly connected with two ends of the electret rod 6 respectively. The distance between the electret rod 6 and the electret roller 7 is controlled by the air cylinder 16, so that the optimal electret distance can be adjusted, and the chargeable area can be adjusted to meet the production requirements of different filter materials 21, and the aim of high-efficiency corona charging is fulfilled.

The utility model discloses a theory of operation and beneficial effect do:

the filter material to be processed sequentially enters an electret electric field formed between the upper electret rod 6, the lower electret rod 6 and the electret roller 7 from a material guide roller 18 at one end of the machine frame 1, and high-voltage static electricity passes through the filter material 21, so that the filter material 21 on the electret roller 7 becomes a permanently charged fiber electret. Then, the electret electrification time of the filter material 21 is effectively prolonged through an electret electric field formed by the upper and lower insulating guide rollers 5 and the corona wire 4, so that the filter material 21 electret obtains higher surface potential and charge storage performance, the filtering efficiency of the filter material 21 is improved, and the resistance of the filter material 21 is reduced. The electret roller 7, which finally extends to the other end of the frame 1, passes through the electret electric field again to maximize the charge amount of the filter material 21 and prolong the charge retention time as much as possible.

The utility model discloses an adjustment filter media 21 moves towards to adjust the length of time that filter media 21 passes through the electret electric field, thereby the long demand of length of electret of adaptation different specification filter media 21 obtains different filtration efficiency's product. Meanwhile, the optimal electret distance can be adjusted to meet the production requirements of different filter materials, so that the aim of efficient corona charging is fulfilled. By changing the path of the filter material 21 or opening and closing of the high-voltage generators of the upper electret unit and the lower electret unit, single-sided or double-sided electret can be realized, the adaptability is strong, and the universality is good. And the electret electrifying time of the filter material 21 is effectively prolonged, so that the electret of the filter material 21 obtains higher surface potential and charge storage property, the filtering efficiency of the filter material 21 is improved, the resistance of the filter material 21 is reduced, and the electret filter material is particularly suitable for high-gram-weight filter materials.

The above, only do the preferred embodiment of the present invention, not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a high-efficient filter media electret equipment which characterized in that: the device comprises a rack (1) and supporting plates (2) oppositely and fixedly arranged on two sides of the rack (1), wherein two electret units are arranged between the two supporting plates (2), and the two electret units are vertically symmetrical and arranged in a staggered manner;

the electret unit comprises an arc cover (3) which is arranged in the middle of the supporting plate (2) in a lifting mode, a corona wire (4) is arranged in the center of the arc cover (3), a plurality of insulating guide rollers (5) are arranged in the arc cover (3) in a rotating mode, and a first lifting mechanism is arranged on the arc cover (3);

the two sides of the arc cover (3) are respectively provided with a electret rod (6) in a lifting way, two electret rollers (7) which are in one-to-one correspondence with the electret rods (6) are rotatably arranged between the upper electret rod and the lower electret rod (6), and the electret rods (6) are provided with second lifting mechanisms;

the arc cover (3) and the electret roller (7) are grounded, and the electret rod (6) and the corona wire (4) are both connected with a high-voltage generator.

2. The high efficiency filter material electret device of claim 1, wherein: first elevating system including set firmly in lift lead screw (8) at arc cover (3) both ends, lift lead screw (8) are kept away from an pot head of arc cover (3) be equipped with frame (1) fixed connection's lead screw axle sleeve (9), lead screw axle sleeve (9) internal rotation be provided with lift lead screw (8) coaxial thread connection's worm wheel (10), rotate on frame (1) be provided with worm (11) of worm wheel (10) meshing, the one end of worm (11) has set firmly rocking handle (12).

3. The high efficiency filter material electret device of claim 2, wherein: guide rails (13) are fixedly arranged at two ends of the arc cover (3) respectively, a base (14) is fixedly arranged on two sides of the arc cover (3) of the rack (1) respectively, and a sliding block (15) in sliding fit with the guide rails (13) is fixedly arranged on the base (14).

4. The high efficiency filter material electret device of claim 3, wherein: the second lifting mechanism comprises an air cylinder (16) fixedly arranged on the rack (1), and a piston rod of the air cylinder (16) is fixedly connected with the electret rod (6).

5. The high efficiency filter material electret device of claim 1, wherein: one side of the electret rod (6) facing the electret roller (7) is fixedly provided with a plurality of static electricity generating needles (17) at equal intervals, and the induction ends of the static electricity generating needles (17) point to the electret roller (7).

6. The high efficiency filter material electret device of claim 1, wherein: the two ends of the frame (1) are respectively provided with a guide roller (18) in a rotating manner, and a plurality of insulating traction rollers (19) are arranged between the upper arc cover and the lower arc cover (3) in a rotating manner.

7. The high efficiency filter material electret device of claim 6, wherein: an operation opening (20) is formed in the supporting plate (2).