CN111204758A

CN111204758A - Single crystal graphite material preparation purification equipment

Info

Publication number: CN111204758A
Application number: CN202010068620.4A
Authority: CN
Inventors: 王佳友; 吴小花
Original assignee: Individual
Current assignee: Jiaxiang Hongrun Carbon Co ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-05-29
Anticipated expiration: 2040-01-21
Also published as: CN111204758B

Abstract

The invention discloses a single crystal graphite material preparation and purification device which comprises a special pipe and a pressing plate, wherein the upper part and the lower part of the special pipe are in a cylindrical structure, a circular cover plate is clamped on the upper end surface of the special pipe, a groove is concentrically formed in the upper end surface of the cover plate, a screen plate which is provided with a large number of through holes and is negatively charged is fixed in the groove, a plurality of bent holes communicated with the inside of the special pipe are formed in the lower wall of the groove, a square box is fixedly communicated with the lower wall of the special pipe, and two opposite side walls of the square box are provided with a magnetic plate in society. Has the advantages that: better realization from lamellar structure decompose graphite for tiny granule to accomplish the dust removal and the classification process of different granule sizes, easy operation is convenient, only need after work is accomplished take out the receiver and take out the graphite between each baffle can, but single crystal graphite, polycrystal graphite, not smash thorough graphite automatic classification, the staff later stage of being convenient for is taken.

Description

Single crystal graphite material preparation purification equipment

Technical Field

The invention relates to the technical field of graphite materials, in particular to a single crystal graphite material preparation and purification device.

Background

In recent years, with the rapid development of science and technology, the working performance of electronic products is continuously improved, the size of the electronic products is also smaller and smaller, and with the improvement of the working speed and efficiency of the electronic products, the heat productivity of the electronic products is larger and larger, so that the electronic products need to be equipped with corresponding heat dissipation devices, and also ensure that the heat dissipation devices have excellent heat dissipation capability to dissipate heat energy generated by electronic components inside the electronic products in working timely, thereby ensuring that the electronic products can normally operate, further improving the reliability of the product performance and prolonging the service life of the products.

The invention discloses a single crystal graphite material preparation and purification device, wherein graphite sheets are heated at high temperature, then the graphite sheets are physically abraded by using an abrasion plate, single crystals separated from the surfaces of the graphite sheets at the high temperature are separated from the graphite sheets, the preparation of the graphite single crystals is completed, and a purification tank collects substances separated from the graphite sheets.

The realization that this patent can be better is to the separation extraction of single crystal graphite, but in actual operation the degree of difficulty is great and difficult the accuse when discovering the device extraction graphite crystal air, leads to actual extraction efficiency lower, for this reason we propose a preparation purification device that the operation degree of difficulty is little, provide efficient.

Disclosure of Invention

The invention aims to solve the problem of low efficiency of extracting graphite single crystals in the prior art, and provides equipment for preparing and purifying a single crystal graphite material.

In order to achieve the purpose, the invention adopts the following technical scheme: a single crystal graphite material preparation and purification device comprises a special pipe and a pressing plate, wherein the upper part and the lower part of the special pipe are in a cylindrical structure, a circular cover plate is clamped on the upper end face of the special pipe, a groove is concentrically formed in the upper end face of the cover plate, a screen plate with a large number of through holes and negative electricity is fixed in the groove, and a plurality of bent holes communicated with the inside of the special pipe are formed in the lower wall of the groove;

the lower wall of the special pipe is fixedly communicated with a square box, two opposite side walls of the square box are provided with a magnetic plate in society, a pure separating box is connected inside the square box in a sliding mode, the bottom of the square box is communicated with an air duct, and the air duct is communicated with an external air pump;

a plurality of adhesive tapes and heating strips with different diameters are fixed on the lower wall of the pressing plate, the adhesive tapes and the heating strips are of annular structures and are alternately sleeved, the thickness of each adhesive tape is larger than the depth of the screen plate from the upper wall of the cover plate, and a vibrator capable of generating vibration is fixed on the upper wall of the pressing plate;

a circular positioning plate is placed at the gradual change position of the inner diameter of the special-shaped pipe, a plurality of tapered holes with large top and small bottom are formed in the positioning plate, and a plurality of ash removing rods with negative electricity are fixed on the upper wall of the positioning plate.

In foretell single crystal graphite material preparation purification equipment, divide pure box to include net, receiver down, the receiver is for lacking the square box body of upper and lower wall, net is fixed in the lower wall of receiver down, the inner wall of receiver is fixed with a plurality of baffles, and every baffle all is perpendicular with the magnetic sheet, net stable ground connection down.

In the above single crystal graphite material preparation and purification apparatus, each curved hole is inclined in the circumferential direction of the corresponding position, and the inclination directions are consistent, the positioning plate is made of an insulating material, and the joint of the upper wall of the positioning plate and the ash removing rod is provided with a fillet.

Compared with the prior art, the invention has the advantages that:

the graphite sheet is placed in the groove of the cover plate, the pressing plate downwards extrudes the graphite sheet to enable the graphite sheet to be fully contacted with the screen plate, the graphite sheet and the pressing plate synchronously generate high-frequency vibration under the driving of the vibrator under the action of the adhesive tape, the graphite sheet and the pressing plate rub against the screen plate to enable graphite particles on the graphite sheet to be separated, and the heating strip generates a heating effect on the graphite to enable the graphite particles peeled off when the graphite is physically worn to be finer.

2. When the device works, an external air pump generates negative pressure at the air duct, so that graphite particles which are separated from the screen by friction move along meshes, bent holes, special-shaped pipes, square boxes and pure boxes of the screen, the graphite particles can be electrified when being contacted with the electrified screen, and dust impurities are not conductive and are not easy to be electrified, so that dust can be removed conveniently at the later stage;

3. the dust is easy to contact with and be attracted by the dust removing rod in the moving process of the graphite particles, the graphite particles are negatively charged and repel each other in the same polarity of the dust removing rod and are not adsorbed, and the curved and inclined arrangement of the curved holes changes the moving tracks of the graphite particles and the dust, so that the contact probability of the dust and the dust removing rod is increased, and the dust is ensured to be removed more thoroughly;

4. the locating plate is placed in the pipe diameter gradual change department of mechanical tubes, makes its keeping that need not other fixed knot structure can be stable correspond the position, is convenient for get and takes and wash the ash removal pole, and the axis of the bell mouth on the locating plate is vertical direction simultaneously, and graphite particles can consume its more transverse movement's trend when passing the bell mouth along with air motion for more vertical downstream of graphite, the graphite particles of the various particle sizes of later stage of being convenient for separate.

5. Electrified graphite particles downstream can be deflected by the action of lorentz force in to the magnetic field, the electrified volume of different diameter granule graphite particles is different rather than the proportion of gravity, so the acceleration that deflects the production when receiving the lorentz force is different, fall into the different positions of receiver after the graphite particles of different diameters deflect, thereby separate the graphite particles of different diameters, the graphite particles is kept corresponding the position after being strained down by the lower net, the net is then guaranteed all the time to be in the electricity neutral state under the lower net of stable ground connection, avoid electrostatic repulsion to make the graphite particles be difficult for collecting in the department of lower net.

In summary, the following steps: the graphite sorting machine better realizes the decomposition of graphite from a sheet structure into fine particles, the dust removal and the sorting process of different particle sizes, is simple and convenient to operate, only needs to take out the storage box and take out the graphite among the partition plates after the work is finished, and can automatically sort single crystal graphite, polycrystalline graphite and graphite which is not completely crushed, thereby being convenient for the later-stage taking of workers.

Drawings

FIG. 1 is a schematic structural diagram of a single crystal graphite material preparation and purification apparatus according to the present invention;

figure 2 is a schematic side cross-sectional view of the square box portion of the present invention.

In the figure: 1 special-shaped tube, 2 square boxes, 3 cover plates, 4 mesh plates, 5 bent holes, 6 pressing plates, 7 adhesive tapes, 8 heating strips, 9 vibrators, 10 positioning plates, 11 tapered holes, 12 ash removing rods, 13 magnetic plates, 14 storage boxes, 15 lower meshes, 16 partition plates and 17 air ducts.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-2, a single crystal graphite material preparation and purification apparatus comprises a mechanical tube 1 and a pressing plate 6, wherein the upper part and the lower part of the mechanical tube 1 are both cylindrical structures, a detachable circular cover plate 3 is clamped on the upper end surface of the mechanical tube 1, a groove is concentrically formed on the upper end surface of the cover plate 3, a screen plate 4 with a large number of through holes and negative electricity is fixed in the groove, electrons on the graphite and the screen plate 4 can be redistributed when the graphite contacts with each other, i.e. the graphite is electrified, and a plurality of bent holes 5 communicated with the inside of the mechanical tube 1 are formed on the lower wall of the groove;

the lower wall of the special pipe 1 is fixedly communicated with a square box 2, two opposite side walls of the square box 2 are provided with a magnetic plate 13, the interior of the square box 2 is connected with a purifying box in a sliding manner, the purifying box can generate purifying effect on graphite particles blown down from the upper part, the bottom of the square box 2 is communicated with an air duct 17, and the air duct 17 is communicated with an external air pump;

a plurality of adhesive tapes 7 and heating strips 8 with different diameters are fixed on the lower wall of the pressing plate 6, the adhesive tapes 7 and the heating strips 8 are both in an annular structure and are alternately sleeved, the thickness of the adhesive tapes 7 is larger than the depth of the screen plate 4 from the upper wall of the cover plate 3, the pressing plate 6 is ensured not to be in close contact with the cover plate 3, air can flow into the joint of the pressing plate 6 and the cover plate 3, and a vibrator 9 capable of generating vibration is fixed on the upper wall of the pressing plate 6;

a circular shape locating plate 10 has been placed to the gradual change department of mechanical tubes 1 internal diameter, has seted up a plurality of big-end-up's bell mouth 11 on the locating plate 10, and the upper wall of locating plate 10 is fixed with a plurality of ash removal poles 12 that take the negative electricity, and the outer wall of ash removal pole 12 is with the one deck insulating film, produces the electronic exchange when avoiding graphite particles rather than contacting.

The pure box comprises a lower net 15 and a storage box 14, the storage box 14 is a square box body lacking an upper wall and a lower wall, the lower net 15 is fixed on the lower wall of the storage box 14, a plurality of partition plates 16 are fixed on the inner wall of the storage box 14, each partition plate 16 is perpendicular to the magnetic plate 13, and the lower net 15 is stably grounded;

every curved hole 5 inclines along the circumferencial direction that corresponds the position, and the incline direction is unanimous, when guaranteeing that graphite particles and dust can strike with ash removal pole 12, reduces the striking effect between the graphite particles, and locating plate 10 uses insulating material to make and its upper wall all is provided with the fillet with ash removal pole 12 junction, avoids having the right angle point and deposits graphite particles, produces extravagantly.

When the device works, a graphite sheet is placed on the screen plate 4, the pressing plate 6 is covered on the groove of the cover plate 3, an external air pump, the heating strip 8 and the vibrator 9 are started, the heating strip 8 can be an electrified resistor, the adhesive tape 7 is stably contacted with the graphite sheet and vibrates at high frequency under the action of the vibrator 9, and the heating strip 8 heats the graphite sheet.

After the graphite is heated, the graphite and the screen plate 4 generate relative vibration to generate an obvious friction effect, so that the graphite is ground into extremely small particles, the air pump works in the air duct 17 to generate negative pressure to move the crushed graphite particles downwards, and in the process, the movement tracks of the air flow and the graphite particles are as follows: the net plate 4 has meshes, bent holes 5, a special pipe 1, a square box 2, a pure separating box and an air duct 17.

A small amount of dust is mixed in the graphite particles and moves synchronously with the graphite particles, the screen plate 4 is negatively charged, and when the graphite particles are contacted with the screen plate 4, electrons on the screen plate 4 and the graphite particles are redistributed, so that the graphite particles are negatively charged, but the dust is not conductive and is not charged.

Electrified graphite particles and uncharged dust downstream pass otter board 4 and curved bore 5, curved bore 5 is the crooked structure of slope, so graphite particles can incline downstream after passing curved bore 5, graphite particles and dust just very easily collide with ash removal pole 12 with the negative electricity this moment, the striking in-process, graphite particles and 12 like poles of ash removal pole repel each other, graphite particles can be opened by ash removal pole 12 rapidly promptly, dust particles and ash removal pole 12 contact the back, just can be adsorbed on ash removal pole 12 under the effect of electrostatic attraction, thereby will mix with the dust in graphite particles and detach, avoid the dust to move to the branch pure box along with graphite particles.

The axis of the conical hole 11 is in a vertical state, and the transverse movement amplitude of the graphite particles can be greatly reduced when the graphite particles move downwards to pass through the conical hole, so that more graphite particles are ensured to have the tendency of moving vertically downwards.

The pure box part is provided with two magnetic plates 13 with opposite different poles, the magnetic plates 13 generate a magnetic field, charged graphite particles cut magnetic induction lines when moving downwards into the magnetic field and deflect under the action of Lorentz force, a plurality of partition plates 16 are arranged in the storage box 14, the charge amount of the graphite particles with different diameters is different from the gravity ratio of the graphite particles with different diameters, so that the acceleration generated by deflection under the action of the Lorentz force is different, and as shown in figure 2, the graphite particles with different diameters fall into different positions of the storage box 14 after deflection, so that the graphite particles with different diameters are separated.

Although the terms of the mechanical tubes 1, the square boxes 2, the cover plates 3, the mesh plates 4, the bent holes 5, the pressing plates 6, the adhesive tapes 7, the heating strips 8, the vibrators 9, the positioning plates 10, the tapered holes 11, the ash removing rods 12, the magnetic plates 13, the storage boxes 14, the lower nets 15, the partition plates 16, the air ducts 17, and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. A single crystal graphite material preparation and purification device comprises a special pipe (1) with a large upper part and a small lower part and a pressing plate (6), and is characterized in that the upper part and the lower part of the special pipe (1) are of cylindrical structures, a circular cover plate (3) is clamped on the upper end face of the special pipe (1), a groove is concentrically formed in the upper end face of the cover plate (3), a screen plate (4) with a large number of through holes and negative electricity is fixed in the groove, and a plurality of bent holes (5) communicated with the inside of the special pipe (1) are formed in the lower wall of the groove;

the lower wall of the special pipe (1) is fixedly communicated with a square box (2), two opposite side walls of the square box (2) are provided with a magnetic plate (13) in a social mode, a purifying box is connected inside the square box (2) in a sliding mode, the bottom of the square box (2) is communicated with an air duct (17), and the air duct (17) is communicated with an external air pump;

a plurality of adhesive tapes (7) and heating strips (8) with different diameters are fixed on the lower wall of the pressing plate (6), the adhesive tapes (7) and the heating strips (8) are both of annular structures and are alternately sleeved, the thickness of each adhesive tape (7) is larger than the depth of the screen plate (4) from the upper wall of the cover plate (3), and a vibrator (9) capable of generating vibration is fixed on the upper wall of the pressing plate (6);

a circular positioning plate (10) is placed at the gradual change position of the inner diameter of the special pipe (1), a plurality of tapered holes (11) with large upper parts and small lower parts are formed in the positioning plate (10), and a plurality of ash removing rods (12) with negative electricity are fixed on the upper wall of the positioning plate (10).

2. The single crystal graphite material preparation and purification equipment according to claim 1, wherein the purification box comprises a lower net (15) and a storage box (14), the storage box (14) is a square box body lacking an upper wall and a lower wall, the lower net (15) is fixed to the lower wall of the storage box (14), a plurality of partition plates (16) are fixed to the inner wall of the storage box (14), each partition plate (16) is perpendicular to the magnetic plate (13), and the lower net (15) is stably grounded.

3. The apparatus for preparing and purifying a single crystal graphite material as claimed in claim 1, wherein each of the curved holes (5) is inclined in a circumferential direction at a corresponding position in a uniform direction, the positioning plate (10) is made of an insulating material and has rounded corners at the junctions between the upper walls thereof and the ash removing rods (12).