CN112516896A

CN112516896A - A dosing unit for producing electromagnetic shield composite fiber membrane

Info

Publication number: CN112516896A
Application number: CN202011495939.1A
Authority: CN
Inventors: 孙妍妍; 洪钧; 张旭; 王震; 张梅; 吴寒; 李皖京; 唐玺丰
Original assignee: Anhui Polytechnic University
Current assignee: Anhui Polytechnic University
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-03-19

Abstract

The invention provides a batching device for producing an electromagnetic shielding composite fiber membrane, which comprises a first mixing mechanism, a grinding mechanism for grinding turbid liquid mixed by the first mixing mechanism and a solvent conveying mechanism for conveying a solvent to the first mixing mechanism, wherein the first mixing mechanism is arranged on the grinding mechanism, and a discharge hole of the first mixing mechanism extends into a feed inlet of the grinding mechanism. Through the setting of compounding mechanism, the misce bene of the raw materials of being convenient for, through the setting of grinding the mechanism, be convenient for to the further grinding treatment of mixed feed liquid, and the discharge gate of compounding mechanism extends into the feed inlet of grinding the mechanism, has avoided appearing the mixed feed liquid and has taken out, the intermediate process of adding again, uses manpower sparingly.

Description

A dosing unit for producing electromagnetic shield composite fiber membrane

Technical Field

The invention relates to the technical field of preparation of electromagnetic shielding composite fiber membranes, in particular to a batching device for producing electromagnetic shielding composite fiber membranes.

Background

At present, the electromagnetic radiation problem is becoming more and more prominent due to the rapid development of electronic technology and the widespread use of wireless technology. Therefore, it is necessary to research and develop an electromagnetic shielding film which is easy to process, low in cost, and excellent in electromagnetic shielding effect to protect human health from the harm of electromagnetic waves.

Research shows that the general materials are radiated by electromagnetic waves to generate reflection, scattering, absorption and a small amount of transmission, wherein the scattering and reflection can cause secondary pollution to the environment, and therefore, the development of electromagnetic shielding materials should be started from the following 3 aspects: (1) the reflection of electromagnetic waves in the space is reduced, so that secondary pollution can be avoided; (2) the transmission of electromagnetic waves is reduced, the transmissivity is preferably zero, and the safety and the reliability can be ensured only if the electromagnetic waves do not penetrate through the electromagnetic shielding material; (3) increasing the absorption of electromagnetic waves. At present, the electromagnetic shielding material in China is mainly characterized by relatively low absorption rate, relatively single protection function, incapability of effectively controlling the reflection of electromagnetic waves and easy generation of secondary pollution. Therefore, the development of low-cost and excellent-performance electromagnetic shielding materials and multifunctional protective materials has become a development trend of electromagnetic shielding materials.

When preparing electromagnetic shielding materials, corresponding equipment is needed to be adopted to prepare various raw materials so as to facilitate better mixing reaction. The existing adopted device adopts a stirrer to stir materials, the materials need to be manually taken out after stirring, then the materials are manually ground in a grinder, the working efficiency is low, the grinding effect is poor, the whole preparation process cannot be operated in a flow line type, and the large-scale rapid production is not facilitated.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art. Therefore, the invention provides a batching device for producing an electromagnetic shielding composite fiber membrane, and aims to facilitate quick batching in the preparation process of the composite fiber membrane, facilitate grinding and avoid the intermediate process of taking out and adding mixed feed liquid.

Based on the above purpose, the invention provides a batching device for producing an electromagnetic shielding composite fiber membrane, which comprises a first mixing mechanism, a grinding mechanism for grinding turbid liquid mixed by the first mixing mechanism and a solvent conveying mechanism for conveying a solvent to the first mixing mechanism, wherein the first mixing mechanism is arranged on the grinding mechanism, and a discharge hole of the first mixing mechanism extends into a feed hole of the grinding mechanism.

Grinding mechanism includes the casing, locates the barrel in the casing and locates the barrel lower extreme and with the broken head of the coaxial setting of barrel, the top of casing is equipped with the turbid liquid feed inlet, and the bottom of casing is equipped with open closed bin outlet, the bottom of broken head is equipped with the lapping liquid export of directional bin outlet, the upper end opening of barrel is located casing turbid liquid feed inlet below, is equipped with in the broken head with broken head complex grinding head, broken first inside wall is equipped with first spiral auger blade, the grinding head upside is equipped with the guide structure who is used for the leading-in broken head of turbid liquid, guide structure rotates with the casing to be connected, be equipped with second spiral auger blade on the grinding head, first spiral auger blade is opposite with second spiral auger blade opposite direction.

The top of casing is equipped with first driving motor, the grinding head is connected with first driving motor through the pivot, one side of barrel lateral wall is equipped with the driving gear, and the lateral wall of barrel is equipped with the driven gear who meshes with the driving gear in the position that the driving gear corresponds, and the inside wall of casing is equipped with the boss, and the boss is located the driven gear below, is equipped with the ball between boss and the driven gear, and the ball supports and leans on the boss, and driven gear supports and leans on the ball, the inside wall of casing is equipped with second driving motor, and second driving motor is connected with the driving gear transmission.

First compounding mechanism is including locating the first compounding jar on the casing and locating the first rabbling mechanism in the first compounding jar, be equipped with graphite feeder hopper and first solvent feed inlet on the first compounding jar, the bottom bin outlet of first compounding jar extends into the turbid liquid feed inlet at casing top.

First rabbling mechanism includes first agitator motor, locates the first (mixing) shaft in the first compounding jar and locates the first stirring leaf on the first (mixing) shaft, first agitator motor locates on the first compounding jar, and first agitator motor's output and first agitator shaft are connected.

The grinding mechanism also comprises a circulating conveying mechanism which is arranged in the shell and used for circulating and refluxing the grinding liquid discharged from the cylinder into the opening at the upper end of the cylinder.

The circulating conveying mechanism comprises a return pipe and a circulating pump arranged at the bottom of the shell, and the circulating pump circulates and returns the grinding fluid discharged from the grinding fluid outlet into the opening at the upper end of the cylinder body through the return pipe.

The discharge opening is opened and closed through a shielding sealing mechanism.

The solvent conveying device comprises a first solvent storage box, a first conveying pipeline and a first conveying pump arranged on the first solvent storage box, and the first conveying pump conveys the solvent in the first solvent storage box into the first mixing mechanism through the first conveying pipeline.

The batching device further comprises a second mixing mechanism, and the second mixing mechanism is connected with the solvent conveying mechanism through a shunt pipeline.

The invention has the beneficial effects that:

1. according to the invention, the raw materials are uniformly mixed conveniently through the arrangement of the mixing mechanism, the mixed material liquid is further ground conveniently through the arrangement of the grinding mechanism, the discharge hole of the mixing mechanism extends into the feed hole of the grinding mechanism, the intermediate process of taking out and adding the mixed material liquid is avoided, and the labor is saved.

2. The graphite raw material is ground into fine particles under the action between the crushing head and the grinding head, and the ground particles fall from the outlet under the guiding action of the helical auger toothed sheets.

3. According to the invention, the circulating conveying mechanism is arranged in the shell, so that the graphite feed liquid to be ground can be repeatedly ground, and the grinding requirement of graphite in the production of the electromagnetic shielding composite fiber membrane is effectively ensured.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one or more embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is a schematic structural diagram of example 2 of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

fig. 4 is a schematic structural diagram of embodiment 3 of the present invention.

Labeled as:

1. a housing; 2. a barrel; 3. a crushing head; 4. a discharge outlet; 5. a grinding head; 6. a first helical auger blade; 7. a guide structure; 8. a first drive motor; 9. a rotating shaft; 10. a driving gear; 11. a driven gear; 12. a ball bearing; 13. a boss; 14. a second drive motor; 15. a grinding fluid outlet; 16. a sealing plug; 17. a first mixing tank; 18. a graphite feed hopper; 19. a first cover body; 20. a first stirring motor; 21. a first stirring shaft; 22. a first stirring blade; 23. a supporting seat; 24. a discharge outlet at the bottom end of the first mixing tank; 25. a return pipe; 26. a circulation pump; 27. a first solvent storage tank; 28. a first delivery pump; 29. a first delivery line; 30. sealing the baffle; 31. a slider; 32. an electric push rod; 33. a second mixing tank; 34. a second feed hopper; 35. a shunt tube; 36. a second stirring motor; 37. a second stirring shaft; 38. and a second stirring blade.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.

It should be noted that technical terms or scientific terms used in the embodiments of the present specification should have a general meaning as understood by those having ordinary skill in the art to which the present disclosure belongs, unless otherwise defined. The use of "first," "second," and similar terms in the embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The invention relates to a batching device for producing an electromagnetic shielding composite fiber membrane, which comprises a first mixing mechanism, a grinding mechanism for grinding turbid liquid mixed by the first mixing mechanism and a solvent conveying mechanism for conveying a solvent to the first mixing mechanism, wherein the first mixing mechanism is arranged on the grinding mechanism, and a discharge hole of the first mixing mechanism extends into a feed inlet of the grinding mechanism. Through the setting of compounding mechanism, the misce bene of the raw materials of being convenient for, through the setting of grinding the mechanism, be convenient for to the further grinding treatment of mixed feed liquid, and the discharge gate of compounding mechanism extends into the feed inlet of grinding the mechanism, has avoided appearing the mixed feed liquid and has taken out, the intermediate process of adding again, uses manpower sparingly. The following is a detailed description by specific examples.

Example 1

As shown in fig. 1, in this embodiment, the grinding mechanism includes a housing 1, a barrel 2 disposed in the housing 1, and a crushing head 3 disposed at a lower end of the barrel 2 and coaxial with the barrel 2, a suspension feed inlet is disposed at a top of the housing 1, an openable and closable discharge outlet 4 is disposed at a bottom of the housing 1, a grinding fluid outlet 15 pointing to the discharge outlet 4 is disposed at the bottom of the crushing head 3, an upper end opening of the barrel 2 is located below the suspension feed inlet of the housing 1, a grinding head 5 matched with the crushing head 3 is disposed in the crushing head 3, a first screw auger blade 6 is disposed on an inner side wall of the crushing head 3, a guide structure 7 for guiding suspension into the crushing head 3 is disposed on an upper side of the grinding head 5, the guide structure 7 is rotatably connected with the housing 1, a second screw auger blade is disposed on the grinding head 5, and the first. The barrel preferably adopts the cylinder barrel, and guide structure preferably is the frustum, and the frustum rotates with the casing and is connected. The discharge opening 4 is sealed by a sealing plug 16.

During the use, the turbid liquid after mixing gets into in the casing through the discharge gate of first compounding mechanism, the turbid liquid is under its self action of gravity, fall into in the conical crushing head, conical crushing head rotates, the grinding head rigid coupling is in the casing, because conical crushing head inside wall is equipped with spiral auger blade, conical crushing head drives first spiral auger blade and rotates, because there is relative motion between conical crushing head and the grinding head, graphite in the turbid liquid is ground into fine particle under the effect between conical crushing head and the grinding head, spiral auger blade can make the graphite broken thoroughly, simultaneously under spiral auger blade's guide effect, the graphite feed liquid after the breakage drops from the outlet of crushing head. The grinding head is fixedly connected with a frustum, after graphite liquid enters the shell from the material inlet, the turbid liquid falls onto the frustum, then the turbid liquid slides into a space between the conical crushing head and the grinding head along the frustum, the frustum is fixedly connected with the grinding head, the frustum is rotatably connected in the shell, and the second spiral auger blade on the grinding head is opposite to the spiral direction of the first spiral auger blade on the inner side wall of the conical crushing head.

The top of casing 1 is equipped with first driving motor 8, and grinding head 5 is connected with first driving motor 8 through pivot 9, one side of 2 lateral walls of barrel is equipped with driving gear 10, and the lateral wall of barrel 2 is equipped with driven gear 11 with driving gear 10 meshing in the position that driving gear 10 corresponds, and the inside wall of casing 1 is equipped with boss 13, and boss 13 is located driven gear 11 below, is equipped with ball 12 between boss 13 and the driven gear 11, and ball 12 supports and leans on boss 13, and driven gear 11 supports and leans on ball 12, the inside wall of casing 1 is equipped with second driving motor 14, and second driving motor 14 is connected with driving gear 10 transmission. When the cylindrical barrel rotates, the driving gear drives the driven gear to rotate, the driven gear drives the cylindrical barrel to rotate, the balls can reduce the resistance of the cylindrical barrel to rotate, and the cylindrical barrel has the characteristic of high efficiency.

As a further improvement, a plurality of shearing rods are arranged on the inner side wall of the cylindrical barrel along the circumferential direction of the cylindrical barrel. When the grinding machine works, the shearing rod rotates, and when the graphite in the turbid liquid falls into the cylindrical barrel, the shearing rod can perform primary shearing action on the graphite, so that the volume of the graphite is reduced primarily, and the grinding efficiency of the grinding machine is improved.

First compounding mechanism is equipped with graphite feeder hopper 18 and first solvent feed inlet including locating first compounding jar 17 on casing 1 and locating the first rabbling mechanism in first compounding jar 17 on the first compounding jar 17, the bottom bin outlet 24 of first compounding jar extends into the turbid liquid feed inlet at casing 1 top. Particularly, set up two supporting seats 23 that are used for supporting and install first compounding jar at the top of casing, be equipped with first control valve on the bottom bin outlet of first compounding jar, whether be convenient for control to add the turbid liquid in the casing. Be equipped with first lid 19 on the graphite feeder hopper, avoid not throwing under the material state, other debris get into the graphite feeder hopper.

The first stirring mechanism comprises a first stirring motor 20, a first stirring shaft 21 arranged in the first mixing tank 17 and a first stirring blade 22 arranged on the first stirring shaft 21, the first stirring motor 20 is arranged on the first mixing tank 17, and the output end of the first stirring motor 20 is connected with the first stirring shaft 21.

The solvent delivery device comprises a first solvent storage tank 27, a first delivery pipeline 29 and a first delivery pump 28 arranged on the first solvent storage tank, wherein the first delivery pump 28 delivers the solvent in the first solvent storage tank 27 into the first mixing bowl 17 through the first delivery pipeline 29.

In the production process, close first control valve, add graphite and first solvent into first compounding jar, start first agitator motor, stir the operation, homogenize the back, open first control valve, make the turbid liquid grind in getting into the barrel in the casing.

As a further improvement, the grinding mechanism further comprises a circulating conveying mechanism which is arranged in the shell 1 and used for circulating and refluxing the grinding fluid discharged from the cylinder 2 into the opening at the upper end of the cylinder 2. Set up circulation conveying mechanism in the casing for the graphite feed liquid that needs to grind can be ground repeatedly, effectively guarantees the grinding requirement of graphite in the production electromagnetic shield composite fiber membrane.

In this embodiment, the circulating and conveying mechanism includes a return pipe 25 and a circulating pump 26 disposed at the bottom of the casing 1, and the circulating pump 26 circulates and returns the grinding fluid discharged from the grinding fluid outlet 15 into the opening at the upper end of the barrel 2 through the return pipe 25.

Example 2

As shown in fig. 2 and 3, the present embodiment is different from embodiment 1 in that the discharge port is sealed by a barrier sealing mechanism which is movable laterally to open and close the discharge port. In this embodiment, shelter from sealing mechanism includes seal baffle 30, slider 31 and the electric putter 32 of locating the casing bottom, the bottom of casing is equipped with the spout, seal baffle passes through slider and spout sliding connection, electric putter's flexible end passes through the fastener with a side of seal baffle and is connected, under the conventional state, seal baffle lid closes in discharge gate department, realize sealed bin outlet, avoid the discharge of the inside material body of casing, when needing to open the bin outlet, start electric putter, electric putter produces the concertina movement, and then drive seal baffle lateral shifting, seal baffle and slider open the bin outlet along the direction of spout gradually, realize the discharge of the inside material body of casing.

Example 3

As shown in fig. 4, the present embodiment is different from embodiment 1 in that the batching device for producing the electromagnetic shielding composite fiber film further comprises a second mixing mechanism, and the second mixing mechanism is connected with the solvent delivery mechanism through a branch pipe 35. In this embodiment, the second mixing mechanism includes a second mixing tank 33 and a second stirring mechanism disposed in the second mixing tank 33, and the second mixing tank 33 is provided with a second feed hopper 34 and a second solvent feed inlet for feeding silane coupling agent and ground graphite. The first solvent and the second solvent are the same solvent. Be equipped with the second lid on the second feeder hopper, avoid debris to get into the second feeder hopper.

The second stirring mechanism comprises a second stirring motor 36, a second stirring shaft 37 arranged in the second mixing tank 33 and a first stirring blade 38 arranged on the second stirring shaft 37, the second stirring motor 36 is arranged on the second mixing tank 33, and the output end of the second stirring motor 36 is connected with the second stirring shaft 37.

In order to facilitate the leading-in second feeder hopper of the graphite after the drying, set up a screw conveyer, screw conveyer's discharge gate is located directly over the second feeder hopper, and the graphite after will grinding is carried into the second feeder hopper.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the present disclosure, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present description as described above, which are not provided in detail for the sake of brevity.

The embodiments of the present description are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalents, improvements, and the like that may be made within the spirit and principles of the embodiments described herein are intended to be included within the scope of the disclosure.

Claims

1. The utility model provides a dosing unit for producing electromagnetic shield composite fiber membrane, includes first compounding mechanism, its characterized in that, dosing unit is still including being used for grinding the turbid liquid after first compounding mechanism mixes and the solvent conveying mechanism who is used for carrying the solvent to first compounding mechanism, first compounding mechanism is located and is ground on the mechanism, and the discharge gate extension of first compounding mechanism goes into the feed inlet that grinds the mechanism.

2. The batching device for producing an electromagnetic shielding composite fiber film according to claim 1, the grinding mechanism comprises a shell, a cylinder body arranged in the shell and a crushing head which is arranged at the lower end of the cylinder body and is coaxial with the cylinder body, the top of the shell is provided with a suspension feed inlet, the bottom of the shell is provided with a discharge outlet which can be opened and closed, the bottom of the crushing head is provided with a grinding fluid outlet pointing to the discharge outlet, the upper end opening of the cylinder body is positioned below the suspension feed inlet of the shell, a grinding head matched with the crushing head is arranged in the crushing head, the inner side wall of the crushing head is provided with a first spiral auger blade, the upper side of the grinding head is provided with a guide structure for guiding suspension into the crushing head, the guide structure is connected with the shell in a rotating mode, the grinding head is provided with a second spiral auger blade, and the direction of the first spiral auger blade is opposite to that of the second spiral auger blade.

3. The batching device for producing the electromagnetic shielding composite fiber membrane according to claim 2, wherein a first driving motor is arranged at the top of the housing, the grinding head is connected with the first driving motor through a rotating shaft, a driving gear is arranged on one side of the outer side wall of the cylinder, a driven gear meshed with the driving gear is arranged on the outer side wall of the cylinder at a position corresponding to the driving gear, a boss is arranged on the inner side wall of the housing, the boss is positioned below the driven gear, a ball is arranged between the boss and the driven gear, the ball abuts against the boss, the driven gear abuts against the ball, a second driving motor is arranged on the inner side wall of the housing, and the second driving motor is in transmission connection with the driving gear.

4. The batching device for producing the electromagnetic shielding composite fiber membrane according to claim 2, wherein the first mixing mechanism comprises a first mixing tank arranged on the shell and a first stirring mechanism arranged in the first mixing tank, the first mixing tank is provided with a graphite feed hopper and a first solvent feed inlet, and a bottom discharge outlet of the first mixing tank extends into a suspension feed inlet at the top of the shell.

5. The batching device for producing the electromagnetic shielding composite fiber membrane according to claim 4, wherein the first stirring mechanism comprises a first stirring motor, a first stirring shaft arranged in the first mixing tank and a first stirring blade arranged on the first stirring shaft, the first stirring motor is arranged on the first mixing tank, and the output end of the first stirring motor is connected with the first stirring shaft.

6. The batching device for producing the electromagnetic shielding composite fiber membrane according to claim 2, wherein the grinding mechanism further comprises a circulating conveying mechanism arranged in the shell and used for circulating and refluxing the grinding fluid discharged from the cylinder into the opening at the upper end of the cylinder.

7. The dispensing device for producing the electromagnetic shielding composite fiber membrane as claimed in claim 6, wherein the circulating conveying mechanism comprises a return pipe and a circulating pump disposed at the bottom of the housing, and the circulating pump circulates and returns the grinding fluid discharged from the grinding fluid outlet into the opening at the upper end of the cylinder through the return pipe.

8. The batching device for producing the electromagnetic shielding composite fiber film according to claim 2, wherein the discharge opening is opened and closed by a shielding sealing mechanism.

9. The batching device for producing the electromagnetic shielding composite fiber membrane according to claim 1, wherein the solvent conveying device comprises a first solvent storage tank, a first conveying pipeline and a first conveying pump arranged on the first solvent storage tank, and the first conveying pump conveys the solvent in the first solvent storage tank into the first mixing mechanism through the first conveying pipeline.

10. The batching device for producing the electromagnetic shielding composite fiber film according to claim 1, further comprising a second mixing mechanism, wherein the second mixing mechanism is connected with the solvent conveying mechanism through a shunt pipeline.