CN113461005A

CN113461005A - Graphite expansion furnace for preparing graphite paper

Info

Publication number: CN113461005A
Application number: CN202111023925.4A
Authority: CN
Inventors: 张惠玉; 何敏
Original assignee: Nantong Baida Graphite Equipment Co ltd
Current assignee: Nantong Baida Graphite Equipment Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2021-10-01
Anticipated expiration: 2041-09-02
Also published as: CN113461005B

Abstract

The invention belongs to the field of graphite expansion furnaces, and particularly relates to a graphite expansion furnace for preparing graphite paper, which comprises a furnace body; the top fixedly connected with inlet pipe of furnace body, the left side of inlet pipe is provided with the water injection pipe, the right side of water injection pipe is provided with the connecting pipe. This a graphite expansion furnace for preparation of graphite paper is through setting up heat dissipation mechanism, the heat is by the bottom of cooling tube outdiffusion to fin and connecting pipe, make the inside temperature of cooling tube reduce rapidly, the former material of hot melt state solidifies the shaping rapidly when falling from the bushing, avoid raw and other materials to bond, heat by connecting bottom pipe transmission to top forms one deck heat preservation in the space between heat-absorbing sheet top and furnace body internal surface, this heat preservation is in the boosting, mainly play the effect that the inside heat of prevention sealed can runs off, improvement to the thermal efficiency ratio has very obvious effect, the inside heat of traditional graphite expansion furnace is leaked easily, the lower problem of thermal efficiency ratio has been solved.

Description

Graphite expansion furnace for preparing graphite paper

Technical Field

The invention belongs to the field of graphite expansion furnaces, and particularly relates to a graphite expansion furnace for preparing graphite paper.

Background

The graphite paper is made up by using high-carbon phosphorus flake graphite through the processes of chemical treatment and high-temp. expansion rolling. It is a basic material for making various graphite sealing elements, can be extensively used for dynamic sealing and static sealing of machine, pipe, pump and valve in the industries of electric power, petroleum, chemical industry, instrument, machinery and diamond, etc. and is an ideal new sealing material for replacing traditional sealing elements of rubber, fluoroplastic and asbestos, etc..

When the traditional graphite paper is subjected to thermal expansion treatment, metal is adopted for direct contact heating, although the metal has strong thermal conductivity, the outer surface of the graphite is easy to heat unevenly, heat is easy to leak, and the heat efficiency is low.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a graphite expansion furnace for preparing graphite paper, which solves the problems that the heat is easy to leak and the heat efficiency is low because the outer surface of graphite is heated unevenly when the traditional graphite paper is subjected to thermal expansion.

(II) technical scheme

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a graphite expansion furnace for preparing graphite paper, which comprises a furnace body; the furnace body is characterized in that a feeding pipe is fixedly connected to the top end of the furnace body, a water injection pipe is arranged on the left side of the feeding pipe, a connecting pipe is arranged on the right side of the water injection pipe, the top end of the connecting pipe is fixedly connected with the outer surface of the furnace body, a heat dissipation mechanism is fixedly connected to the bottom end of the connecting pipe, a cutting mechanism is fixedly connected to the lower surface of the heat dissipation mechanism, a sealing tank is arranged at the top of the cutting mechanism, and the lower surface of the sealing tank is fixedly connected with the upper surface of the heat dissipation mechanism;

the internal surface of seal pot rotates and is connected with the commentaries on classics board, the surface of commentaries on classics board is connected with the internal surface of seal pot rotates, the top of seal pot is provided with the dog, the last fixed surface of dog is connected with extension spring, extension spring's top and the internal surface fixed connection of inlet pipe, the outside of inlet pipe is provided with the heat absorbing plate, the lower surface of heat absorbing plate and the external surface fixed connection of seal pot, set up the intake chamber in the wall of seal pot, the internal surface swing joint of seal pot has the connecting rod, the top swing joint of connecting rod has the closing plate, the lower surface of closing plate contacts with the upper surface of dog.

The heat dissipation mechanism comprises a heat dissipation tube, the outer surface of the heat dissipation tube is fixedly connected with a heat dissipation sheet, a through hole is formed in the wall of the heat dissipation tube, a bushing is arranged at the bottom of the through hole, the outer surface of the bushing is fixedly connected with the inner surface of the heat dissipation tube, and an extrusion mechanism is arranged at the bottom of the bushing.

The bottom of bushing is provided with the swash plate, the surface of swash plate is connected with the internal surface rotation of cooling tube, the bottom of swash plate is rotated and is connected with the retainer plate, the surface of retainer plate and the internal surface fixed connection of cooling tube, the external surface fixed connection of retainer plate has the lug, the bottom of lug is provided with the fly leaf, the surface of fly leaf and the internal surface swing joint of cooling tube.

The extrusion mechanism comprises a rotating rod, the top end of the rotating rod is connected with the lower surface of the bushing plate in a rotating mode, the outer surface of the rotating rod is connected with a lantern ring through a sliding groove in a sliding mode, the outer surface of the lantern ring is connected with a rotating shaft in a rotating mode, a compression spring is fixedly connected to the right end of the rotating shaft, a sleeve is fixedly connected to the right end of the compression spring, the inner surface of the sleeve is connected with the outer surface of the rotating shaft in a sliding mode, and a pressing block is fixedly connected to the outer surface of the sleeve.

The utility model discloses a cutting machine, including cutting mechanism, the lower fixed surface of slide is connected with the pole that hangs down, the surface sliding connection who hangs down the pole has the hydraulic stem, the internal surface sliding connection of hydraulic stem right-hand member has the cutter, the lower surface of cutter and the upper surface sliding connection of slide, the surface of slide and the internal surface sliding connection of cooling tube.

The invention has the following beneficial effects:

1. according to the invention, by arranging the seal tank, when the device is used, graphite raw material fragments enter the interior of the furnace body from the feeding pipe, under the action of gravity, the stop block pulls the extension spring to move downwards to separate the upper surface of the seal plate from the inner surface of the seal tank, the water inlet groove is opened, cooling water injected into the interior of the furnace body through the water injection pipe enters the interior of the seal tank from the water inlet groove in the earlier stage, the temperature in the seal tank begins to rise, the high temperature enables liquid water entering the interior of the seal tank to be gasified, high-temperature steam jacks up the stop block, the bottom end of the feeding pipe is closed, the temperature in the seal tank continuously rises, when the temperature and the pressure reach specified threshold values, the rotating plate rotates, raw materials slide down from the upper surface of the rotating plate, at the moment when the rotating plate rotates, the pressure in the seal tank leaks out, the raw materials are influenced by the reduction of the external pressure, expand outwards, and thermal expansion is completed, the problem of traditional metal direct contact heating make the heating inhomogeneous easily is solved.

2. According to the invention, by arranging the heat dissipation mechanism, when the hot-melt thermal expansion raw material falls from the rotating plate to the upper surface of the bushing plate, heat is diffused from the heat dissipation pipe to the bottom ends of the heat dissipation fins and the connecting pipe, so that the temperature in the heat dissipation pipe is rapidly reduced, the hot-melt raw material is rapidly solidified and molded when falling from the bushing plate, the raw material is prevented from being bonded, the heat transferred from the bottom end to the top end of the connecting pipe forms a heat insulation layer in a gap between the top of the heat absorption fin and the inner surface of a furnace body, the heat insulation layer mainly plays a role in preventing the heat loss in the sealed tank while performing auxiliary heating, a very obvious role in improving the heat efficiency ratio is achieved, and the problems that the heat in the traditional graphite expansion furnace is easy to leak and the heat efficiency is relatively low are solved.

3. According to the invention, the extrusion mechanism is arranged, when raw materials fall down from the upper surface of the bushing plate, the rotating rod drives the pressing block to rotate, in the process, the raw materials flow downwards along the upper surface of the inclined plate, the right end of the sleeve is influenced by the convex block on the outer surface of the fixed ring, when the sleeve does circular motion with the rotating rod as the circle center, the rotating shaft and the sleeve continuously slide and rub, and meanwhile, the raw materials are uniformly spread on the upper surface of the sliding plate by matching with the inclined plate, so that the problem that the surface of a graphite plate is easily uneven when the traditional graphite expansion furnace is cooled and shaped is solved.

4. According to the invention, by arranging the cutting mechanism, after the raw materials are spread out and shaped on the upper surface of the sliding plate, redundant raw materials are squeezed into the movable plate under the action of pressure, and the raw materials squeezed into the movable plate are squeezed out along with the continuous movement of the pressing block, so that the raw materials can be prevented from overflowing, and the vacancy before solidification and shaping can be filled.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the construction of the seal pot of the present invention;

FIG. 4 is a schematic structural diagram of a heat dissipation mechanism according to the present invention;

FIG. 5 is a schematic view of the bottom structure of the bushing of the present invention;

FIG. 6 is a schematic view of the construction of the pressing mechanism of the present invention;

fig. 7 is a schematic structural view of the cutting mechanism of the present invention.

In the figure: the furnace body 1, the inlet pipe 2, the water injection pipe 3, the connecting pipe 4, the heat dissipation mechanism 5, cut the mechanism 6, the seal pot 7, commentaries on classics board 10, the dog 11, extension spring 12, heat absorption piece 13, the intake chamber 14, the connecting rod 15, the closing plate 16, the cooling tube 20, the fin 21, through-hole 22, bushing 23, extrusion mechanism 24, swash plate 25, retainer plate 26, lug 27, fly leaf 28, bull stick 30, spout 31, the lantern ring 32, pivot 33, compression spring 34, sleeve 35, briquetting 36, slide 40, the pole 41 that hangs down, hydraulic stem 42, cutter 43.

Detailed Description

A graphite expansion furnace for producing graphite paper according to an embodiment of the present invention will be described below with reference to fig. 1 to 7.

As shown in fig. 1-7, the graphite expansion furnace for preparing graphite paper according to the invention comprises a furnace body 1; the top end of the furnace body 1 is fixedly connected with a feeding pipe 2, the left side of the feeding pipe 2 is provided with a water injection pipe 3, the right side of the water injection pipe 3 is provided with a connecting pipe 4, the top end of the connecting pipe 4 is fixedly connected with the outer surface of the furnace body 1, the bottom end of the connecting pipe 4 is fixedly connected with a heat dissipation mechanism 5, the lower surface of the heat dissipation mechanism 5 is fixedly connected with a cutting mechanism 6, the top of the cutting mechanism 6 is provided with a sealing tank 7, and the lower surface of the sealing tank 7 is fixedly connected with the upper surface of the heat dissipation mechanism 5;

the inner surface of the sealed tank 7 is rotatably connected with a rotating plate 10, the outer surface of the rotating plate 10 is rotatably connected with the inner surface of the sealed tank 7, the top of the sealed tank 7 is provided with a stop block 11, the upper surface of the stop block 11 is fixedly connected with an extension spring 12, the top end of the extension spring 12 is fixedly connected with the inner surface of the feeding pipe 2, the outer part of the feeding pipe 2 is provided with a heat absorbing sheet 13, the lower surface of the heat absorbing sheet 13 is fixedly connected with the outer surface of the sealed tank 7, the wall of the sealed tank 7 is provided with a water inlet groove 14, the inner surface of the sealed tank 7 is movably connected with a connecting rod 15, the top end of the connecting rod 15 is movably connected with a sealing plate 16, the lower surface of the sealing plate 16 is contacted with the upper surface of the stop block 11, when the device is used, graphite raw material fragments enter the inner part of the furnace body 1 from the feeding pipe 2, the stop block 11 pulls the extension spring 12 to move downwards to separate the upper surface of the sealing plate 16 from the inner surface of the sealed tank 7 under the action of gravity, the intake antrum 14 is opened, pour into the inside of 1 inside cooling water follow intake antrum 14 entering seal pot 7 of furnace body through water injection pipe 3 earlier stage, the inside temperature of seal pot 7 begins to rise, high temperature makes the liquid water gasification of entering seal pot 7 inside, high temperature vapor upwards jack-up dog 11, the bottom of inlet pipe 2 is closed, the inside temperature of seal pot 7 lasts and rises, when temperature and pressure reach appointed threshold value, it rotates to change board 10, raw and other materials are from the upper surface landing of changeing board 10, in the twinkling of an eye of changeing board 10 pivoted, 7 internal pressure of seal pot leaks, raw and other materials are in the landing, receive the influence that external pressure reduces, outwards expand, the thermal energy is accomplished, traditional metal direct contact heating has been solved, make the inhomogeneous problem of heating easily.

The heat dissipation mechanism 5 comprises a heat dissipation pipe 20, a heat dissipation sheet 21 is fixedly connected to the outer surface of the heat dissipation pipe 20, a through hole 22 is formed in the wall of the heat dissipation pipe 20, a bushing 23 is arranged at the bottom of the through hole 22, the outer surface of the bushing 23 is fixedly connected with the inner surface of the heat dissipation pipe 20, an extrusion mechanism 24 is arranged at the bottom of the bushing 23, by arranging the heat dissipation mechanism 5, when the hot-melt and thermally expanded raw material falls from the rotating plate 10 to the upper surface of the bushing 23, the heat is diffused from the heat dissipation pipe 20 to the bottom end of the heat dissipation sheet 21 and the connecting pipe 4, so that the temperature inside the heat dissipation pipe 20 is rapidly reduced, the hot-melt raw material is rapidly cured and molded when falling from the bushing 23, the raw material is prevented from being bonded, the heat transferred from the bottom end to the top end of the connecting pipe 4 forms a heat insulation layer in the gap between the top of the heat absorption sheet 13 and the inner surface of the furnace body 1, and the heat insulation layer mainly plays a role of preventing the heat loss inside the sealed tank 7 during the auxiliary heating, the method has a very obvious effect on improving the heat efficiency ratio, and solves the problems that the heat in the traditional graphite expansion furnace is easy to leak and the heat efficiency is low.

The bottom of the bushing 23 is provided with an inclined plate 25, the outer surface of the inclined plate 25 is rotatably connected with the inner surface of the radiating pipe 20, the bottom of the inclined plate 25 is rotatably connected with a fixing ring 26, the outer surface of the fixing ring 26 is fixedly connected with the inner surface of the radiating pipe 20, the outer surface of the fixing ring 26 is fixedly connected with a bump 27, the bottom of the bump 27 is provided with a movable plate 28, and the outer surface of the movable plate 28 is movably connected with the inner surface of the radiating pipe 20.

The extrusion mechanism 24 comprises a rotating rod 30, the top end of the rotating rod 30 is rotatably connected with the lower surface of the bushing 23, the outer surface of the rotating rod 30 is slidably connected with a lantern ring 32 through a chute 31, the outer surface of the lantern ring 32 is rotatably connected with a rotating shaft 33, the right end of the rotating shaft 33 is fixedly connected with a compression spring 34, the right end of the compression spring 34 is fixedly connected with a sleeve 35, the inner surface of the sleeve 35 is slidably connected with the outer surface of the rotating shaft 33, the outer surface of the sleeve 35 is fixedly connected with a pressing block 36, by arranging the extrusion mechanism 24, when raw materials fall down from the upper surface of the bushing 23, the rotating rod 30 drives the pressing block 36 to rotate, in the process, the raw materials flow downwards along the upper surface of the inclined plate 25, the right end of the sleeve 35 is influenced by a convex block 27 on the outer surface of a fixed ring 26, when the circular motion is performed by taking the rotating rod 30 as the center, the rotating shaft 33 continuously slides and rubs with the sleeve 35, and is matched with the inclined plate 25, raw and other materials are evenly spread on the upper surface of the sliding plate 40, and the problem that the surface of a graphite plate is easy to be uneven when the traditional graphite expansion furnace is cooled and shaped is solved.

The cutting mechanism 6 comprises a sliding plate 40, a vertical rod 41 is fixedly connected to the lower surface of the sliding plate 40, a hydraulic rod 42 is slidably connected to the outer surface of the vertical rod 41, a cutter 43 is slidably connected to the inner surface of the right end of the hydraulic rod 42, the lower surface of the cutter 43 is slidably connected to the upper surface of the sliding plate 40, the outer surface of the sliding plate 40 is slidably connected to the inner surface of the radiating pipe 20, by arranging the cutting mechanism 6, when raw materials are spread out and shaped on the upper surface of the sliding plate 40, redundant raw materials are squeezed into the movable plate 28 under the action of pressure, and along with the continuous movement of the pressing block 36, the raw materials squeezed into the movable plate 28 are squeezed out again, so that the raw materials can be prevented from overflowing and the vacancy before solidification and shaping can be filled, after the raw materials are completely solidified and shaped, the pressure in the hydraulic rod 42 moves from left to right, the vertical rod 41 retracts into the hydraulic rod 42, and the sliding plate 40 moves downwards with graphite flakes, meanwhile, the cutter 43 extends outwards, the graphite flake is divided into two parts, and finally the graphite flake is completely peeled off from the upper surface of the sliding plate 40, so that the problem that the graphite flake is broken due to uneven stress caused by manual peeling of the traditional graphite flake in the final discharging process is solved.

The specific working process is as follows:

during operation, graphite raw material fragments enter the interior of the furnace body 1 from the feeding pipe 2, under the action of gravity, the stop block 11 pulls the extension spring 12 to move downwards to separate the upper surface of the sealing plate 16 from the inner surface of the sealing tank 7, the water inlet groove 14 is opened, cooling water injected into the interior of the furnace body 1 through the water injection pipe 3 in the earlier stage enters the interior of the sealing tank 7 from the water inlet groove 14, the temperature in the interior of the sealing tank 7 begins to rise, the high temperature leads liquid water entering the interior of the sealing tank 7 to be gasified, high-temperature steam jacks up the stop block 11 upwards, the bottom end of the feeding pipe 2 is closed, the temperature in the interior of the sealing tank 7 continuously rises, when the temperature and the pressure reach specified threshold values, the rotating plate 10 rotates, raw materials slide down from the upper surface of the rotating plate 10, at the moment when the rotating plate 10 rotates, the pressure in the interior of the sealing tank 7 leaks out, and the raw materials are influenced by the reduction of external pressure and expand outwards at the moment of the sliding down, thermal expansion is completed.

When the raw and other materials of hot melt thermal expansion fall to the upper surface of bushing 23 from commentaries on classics board 10, the heat is by the bottom of cooling tube 20 outdiffusion to fin 21 and connecting pipe 4 for the inside temperature of cooling tube 20 reduces rapidly, the raw and other materials of hot melt state solidify the shaping rapidly when falling from bushing 23, avoid raw and other materials to bond, the heat of transmitting to the top by connecting pipe 4 bottom forms the one deck heat preservation in the space between heat absorbing sheet 13 top and furnace body 1 internal surface, this heat preservation is in the auxiliary heating in, mainly play the effect of the inside heat loss of prevention seal pot 7, have very obvious effect to the improvement of thermal efficiency ratio.

When raw and other materials from the upper surface of bushing 23 fall down, bull stick 30 drives briquetting 36 and rotates, and at this in-process, raw and other materials flow downwards along the upper surface of swash plate 25, and the right-hand member of sleeve 35 is owing to receive the influence of the lug 27 of retainer plate 26 surface, and it is when doing the circular motion that uses bull stick 30 as the centre of a circle, and pivot 33 and sleeve 35 constantly slide friction cooperate the swash plate 25 simultaneously, and raw and other materials are evenly spread out on the upper surface of slide 40.

After the raw material is spread out and shaped on the upper surface of the sliding plate 40, redundant raw material is squeezed into the movable plate 28 under the action of pressure, and along with the continuous movement of the pressing block 36, the raw material squeezed into the movable plate 28 is squeezed out, so that the raw material can be prevented from overflowing, and the vacancy before solidification and shaping can be filled.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A graphite expansion furnace for preparing graphite paper comprises a furnace body (1); the method is characterized in that: the furnace body is characterized in that a feeding pipe (2) is fixedly connected to the top end of the furnace body (1), a water injection pipe (3) is arranged on the left side of the feeding pipe (2), a connecting pipe (4) is arranged on the right side of the water injection pipe (3), the top end of the connecting pipe (4) is fixedly connected with the outer surface of the furnace body (1), a heat dissipation mechanism (5) is fixedly connected to the bottom end of the connecting pipe (4), a cutting mechanism (6) is fixedly connected to the lower surface of the heat dissipation mechanism (5), a sealing tank (7) is arranged at the top of the cutting mechanism (6), and the lower surface of the sealing tank (7) is fixedly connected with the upper surface of the heat dissipation mechanism (5);

the inner surface of the sealing tank (7) is rotatably connected with a rotating plate (10), the outer surface of the rotating plate (10) is rotatably connected with the inner surface of the sealing tank (7), a stop block (11) is arranged at the top of the seal pot (7), the upper surface of the stop block (11) is fixedly connected with an extension spring (12), the top end of the extension spring (12) is fixedly connected with the inner surface of the feeding pipe (2), a heat absorbing sheet (13) is arranged outside the feeding pipe (2), the lower surface of the heat absorbing sheet (13) is fixedly connected with the outer surface of the sealed tank (7), a water inlet groove (14) is arranged in the wall of the sealing tank (7), the inner surface of the sealing tank (7) is movably connected with a connecting rod (15), the top end of the connecting rod (15) is movably connected with a sealing plate (16), and the lower surface of the sealing plate (16) is in contact with the upper surface of the stop block (11).

2. A graphite expansion furnace for graphite paper production according to claim 1, characterized in that: heat dissipation mechanism (5) are including cooling tube (20), the fixed surface of cooling tube (20) is connected with fin (21), through-hole (22) have been seted up in the wall of cooling tube (20), the bottom of through-hole (22) is provided with bushing (23), the surface of bushing (23) and the internal fixed surface of cooling tube (20) are connected, the bottom of bushing (23) is provided with extrusion mechanism (24).

3. A graphite expansion furnace for graphite paper production according to claim 2, characterized in that: the bottom of bushing (23) is provided with swash plate (25), the surface of swash plate (25) is connected with the internal surface rotation of cooling tube (20), the bottom of swash plate (25) is rotated and is connected with retainer plate (26), the surface of retainer plate (26) is connected with the internal surface fixed connection of cooling tube (20), the external surface fixed connection of retainer plate (26) has lug (27), the bottom of lug (27) is provided with fly leaf (28), the surface of fly leaf (28) and the internal surface swing joint of cooling tube (20).

4. A graphite expansion furnace for graphite paper production according to claim 2, characterized in that: extrusion mechanism (24) are including bull stick (30), the top of bull stick (30) is rotated with the lower surface of bushing (23) and is connected, the surface of bull stick (30) has lantern ring (32) through spout (31) sliding connection, the surface of lantern ring (32) is rotated and is connected with pivot (33), the right-hand member fixedly connected with compression spring (34) of pivot (33), the right-hand member fixedly connected with sleeve (35) of compression spring (34), the internal surface of sleeve (35) and the surface sliding connection of pivot (33), the surface fixedly connected with briquetting (36) of sleeve (35).

5. A graphite expansion furnace for graphite paper production according to claim 1, characterized in that: cut mechanism (6) and include slide (40), the lower fixed surface of slide (40) is connected with pole (41) that hangs down, the surface sliding connection who hangs down pole (41) has hydraulic stem (42), the internal surface sliding connection of hydraulic stem (42) right-hand member has cutter (43), the lower surface of cutter (43) and the upper surface sliding connection of slide (40), the surface of slide (40) and the internal surface sliding connection of cooling tube (20).