CN112551520A - Microwave graphite puffing equipment - Google Patents
Microwave graphite puffing equipment Download PDFInfo
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- CN112551520A CN112551520A CN202011562490.6A CN202011562490A CN112551520A CN 112551520 A CN112551520 A CN 112551520A CN 202011562490 A CN202011562490 A CN 202011562490A CN 112551520 A CN112551520 A CN 112551520A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
- C01B32/22—Intercalation
- C01B32/225—Expansion; Exfoliation
Abstract
The invention relates to microwave graphite puffing equipment, which comprises: a microwave heating cavity, a positive pressure material dispersing device, a microwave generator and the like. Set up malleation scattered glassware on the diapire in microwave heating chamber, malleation scattered glassware is used for blowing off the graphite material that gets into to microwave heating chamber's week side space along vertical orientation upside in the microwave heating chamber, malleation scattered glassware will blow off to microwave heating chamber's week side space from the graphite material in, make the graphite material wholly be the disperse state, microwave generator work, the graphite material under the disperse state is popped, the graphite material under the disperse state is compared in the graphite material under the accumulation stone state, popped homogeneity is better, this equipment makes the whole disperse state that is located the graphite material of microwave heating intracavity through malleation scattered glassware work, effectively make graphite material thermally equivalent, popped homogeneity is better, equipment whole energy consumption is little, environmental protection nature and economic nature all obtain effectively promoting.
Description
Technical Field
The invention relates to the technical field of graphite puffing equipment, in particular to microwave graphite puffing equipment.
Background
Expanded graphite is an important industrial raw material for producing flexible graphite sheets, and is widely used as a gasket, a sealing heat insulator, and the like. The existing method for preparing the expanded graphite comprises a traditional high-temperature heating method, a microwave method and the like, the microwave method for preparing the expanded graphite has the advantages of simplicity and high efficiency, and the expanded graphite is widely concerned and researched in the field; the microwave method is essentially the same as the traditional high-temperature expansion method, and compounds inserted between graphite layers are rapidly decomposed or vaporized at high temperature by heating to generate a large amount of gas, so that the graphite is stripped along the axial direction to form the expanded graphite. The difference between the two is that the traditional high-temperature expansion method heats the graphite in a surface heat conduction mode, namely, the heat of a heat source is transmitted into the graphite through the surface of the graphite to increase the temperature of the graphite, and the microwave expansion is converted into heat energy through the interaction of microwaves penetrating into the graphite and polar molecules between graphite layers, so that all parts in the graphite obtain heat at the same moment to increase the temperature.
Chinese patent, No. CN109133048B is issued to grant, a tower microwave graphite bulking device is disclosed, adopt tower structure, the graphite material is from last down formula production that drops, be furnished with the spiral material machine at the feed end, make the even ration of material get into in the microwave heating box, the discharge end is pneumatic butterfly valve, realize unloading fast and accurate unloading, the material zone of heating adopts the ring form design, microwave generator encircles the material and staggered floor distributes from top to bottom, coverage is extensive and even, be favorable to reducing because of the inhomogeneous phenomenon that local expansion is incomplete appears of graphite material spreading thickness.
Among the above-mentioned technical scheme, in order to reduce the phenomenon that local expansion is incomplete because of graphite material spreading thickness is inhomogeneous, need encircle material heating zone upper and lower staggered floor and set up a plurality of microwave generators, lead to that equipment is whole to consume the energy great, and feature of environmental protection and economic nature are not good.
Disclosure of Invention
Therefore, the invention provides microwave graphite puffing equipment, which aims to solve the technical problems that in the background art, in order to reduce the phenomenon that local incomplete expansion is caused by uneven spreading thickness of graphite materials, a plurality of microwave generators are required to be arranged in staggered layers from top to bottom around a material heating area, so that the equipment is large in overall energy consumption, and poor in environmental protection and economical efficiency.
The invention provides microwave graphite puffing equipment, which comprises: microwave heating chamber, microwave heating chamber provides the space for graphite is popped, set up malleation scatterer on microwave heating chamber's the diapire, malleation scatterer is used for following microwave heating intracavity blows off along the graphite material that vertical direction upside got into extremely in the week side space in microwave heating chamber, week side wall mounting in microwave heating chamber has microwave generator, microwave generator be used for with graphite material microwave heating to the popped state in the microwave heating chamber.
Preferably, malleation bulk cargo ware is including going out the chimney, the air-out end joint that goes out the chimney is in the diapire upper shed department in microwave heating chamber, the stiff end that goes out the chimney can be dismantled and is connected with the fixed plate, the inside of fixed plate is the cavity structure, the cavity of fixed plate with it is linked together to go out the chimney, install the malleation fan on the fixed plate, the inside that goes out the chimney is provided with the interception net, the interception net is to getting into the air of microwave heating intracavity plays the purifying action.
Preferably, the diapire in microwave heating chamber is for being provided with the sloping face portion, the intercommunication is provided with the discharging pipe on the sloping face portion, is located microwave heating intracavity is followed through popped graphite material the sloping face portion warp the discharging pipe is discharged.
Preferably, a cooling jacket is annularly arranged on the bottom wall of the microwave heating cavity, the cooling jacket is an annular jacket, the cooling jacket is positioned in the microwave heating cavity, expanded graphite materials pass through the slope part and fall into the cooling jacket, the cooling jacket is used for cooling the expanded graphite, and the positive pressure fan is positioned at the center of the cooling jacket.
Preferably, the bottom wall of the cooling jacket is arc-shaped, a discharge hole is formed in the bottom wall of the cooling jacket, and an electric control valve is installed at the discharge hole.
Preferably, be provided with air exhaust equipment on the upper wall in microwave heating chamber, air exhaust equipment includes the exhaust cylinder, fixedly connected with joint eaves on the week lateral wall of exhaust cylinder, the hand hole has been seted up on the week lateral wall of joint eaves, the exhaust cylinder joint in on the upper wall in microwave heating chamber, the air inlet end threaded connection of exhaust cylinder has the exhaust cylinder lid, evenly seted up the through-hole on the exhaust cylinder lid, fixedly connected with connecting plate on the inside wall of exhaust cylinder, install negative-pressure air fan on the connecting plate, the inside of exhaust cylinder just is located the connecting plate with be provided with the filter between the exhaust cylinder lid, the filter is right the gas play the purifying action in microwave heating chamber combustion gas.
Preferably, the upper wall in microwave heating chamber and with malleation bulk cargo ware corresponding position department has seted up the feed inlet, feed inlet department is connected with the feeding chamber, be connected with the storage hopper on the feeding chamber, the open end of storage hopper is provided with out the hopper lid, the storage hopper and with the automatically controlled valve is installed to the link in feeding chamber.
Preferably, the symmetry is provided with the stabilizer blade on the diapire in microwave heating chamber, the stabilizer blade is used for with microwave heating chamber props up from ground, just the stabilizer blade will be located discharge gate on the cooling jacket diapire props up from ground.
Preferably, the microwave heating cavity is a round handle-shaped cavity, and the positive pressure dispenser is located at the round bottom wall of the microwave heating cavity.
The invention provides a microwave graphite puffing method, which comprises the following steps:
step 1: opening a hopper cover, adding a graphite material into a storage hopper, starting a positive pressure material scattering device, wherein a positive pressure fan works to guide external air into a microwave heating cavity through an air outlet cylinder, and the external air enters the microwave heating cavity in a positive pressure mode through filtering of an interception net;
step 2: controlling an electric control valve on a storage hopper to be opened, enabling the graphite material to enter a microwave heating cavity through a feeding cavity, enabling positive pressure air to fall relatively in the step 1, blowing the graphite material to the peripheral space of the microwave heating cavity by a positive pressure material diffuser to enable the graphite material to be in a dispersed state integrally, and enabling a microwave generator to work to expand the graphite material in the dispersed state;
and step 3: the expanded graphite material is discharged from the discharge pipe along the slope part and falls into the cooling jacket, and the expanded graphite is cooled by the cooling jacket and is discharged along a discharge hole on the bottom wall of the cooling jacket;
and 4, step 4: and starting the negative pressure fan to work, discharging flue gas generated by expanding the graphite material in the microwave heating cavity along the exhaust cylinder, filtering the flue gas by the filter plate in the discharging process, and discharging clean gas.
Compared with the prior art, the invention has the advantages that the bottom wall of the microwave heating cavity is provided with the positive pressure material dispersing device which is used for blowing the graphite material entering from the upper side of the microwave heating cavity along the vertical direction into the peripheral space of the microwave heating cavity, the peripheral wall of the microwave heating cavity is provided with the microwave generator which is used for heating the graphite material in the microwave heating cavity to the puffing state by microwave, the positive pressure material dispersing device blows the graphite material into the peripheral space of the microwave heating cavity, so that the graphite material is wholly in the dispersing state, the microwave generator works to puff the graphite material in the dispersing state, the graphite material in the dispersing state has better puffing uniformity compared with the graphite material in the accumulated material spreading state, and the phenomenon of incomplete local expansion caused by uneven material spreading thickness of the graphite material is reduced without arranging a plurality of microwave generators in an upper staggered layer and a lower layer, this equipment makes the whole disperse state that is located the graphite material of microwave heating intracavity through malleation scatterer work, effectively makes graphite material thermally equivalent, and popped homogeneity is better, and the whole energy consumption of equipment is little, and feature of environmental protection and economic nature all obtain effectively promoting.
Further, malleation bulk cargo ware is including going out the chimney, the air-out end joint that goes out the chimney is at the diapire upper shed department in microwave heating chamber, the stiff end that goes out the chimney can be dismantled and is connected with the fixed plate, the inside of fixed plate is the cavity structure, the cavity and the play chimney of fixed plate are linked together, install the malleation fan on the fixed plate, the inside of going out the chimney is provided with the interception net, the interception net plays the purifying action to the air that gets into in the microwave heating intracavity, start malleation bulk cargo ware, wherein malleation fan work, with outside air through going out the leading-in microwave heating intracavity of chimney, outside air gets into the microwave heating intracavity with the mode of malleation through the interception net filtration, malleation bulk cargo ware will blow off from the graphite material by this in the week side space to the microwave heating chamber, make the graphite material wholly be the.
Further, the diapire in microwave heating chamber is for being provided with slope portion, and the intercommunication is provided with the discharging pipe on the slope portion, lies in the microwave heating intracavity and discharges through the discharging pipe along slope portion through popped graphite material, and the graphite after the microwave heating intracavity is popped is convenient for to set up of slope portion is discharged, and popped graphite material is discharged through the discharging pipe along slope portion.
Further, be provided with the cooling jacket along the annular on the diapire in microwave heating chamber, the cooling jacket is the annular jacket, be located the microwave heating intracavity and fall into the cooling jacket through discharging pipe exhaust popped graphite along domatic portion through popped graphite material, the cooling jacket is used for cooling to popped graphite, keep its inside low temperature with the mode that lets in the cold fluid in the intermediate layer of cooling jacket, the realization is to the cooling effect of popped graphite, positive pressure fan is located the ring core department of cooling jacket, the cold source that the cooling jacket released can effectually be utilized to positive pressure fan position, reduce self because of the heat that the work produced.
Further, arc processing is done to the diapire of cooling jacket, sets up the discharge gate on the diapire of cooling jacket, and discharge gate department installs electric control valve, and arc cooling jacket is favorable to popped graphite gathering in arc diapire place, and control electric control valve opens, and popped graphite can be followed the discharge gate and discharged.
Further, an air exhaust device is arranged on the upper wall of the microwave heating cavity and comprises an air exhaust barrel, a clamping brim is fixedly connected to the peripheral side wall of the air exhaust barrel, hand holes are formed in the peripheral side wall of the clamping brim, the hand holes are convenient to arrange, an operator can detach the whole air exhaust device from the microwave heating cavity, the air exhaust barrel is clamped on the upper wall of the microwave heating cavity, an air inlet end of the air exhaust barrel is in threaded connection with an air exhaust barrel cover, through holes are uniformly formed in the air exhaust barrel cover, a connecting plate is fixedly connected to the inner side wall of the air exhaust barrel and is also provided with corresponding through holes for gas circulation, a negative pressure fan is arranged on the connecting plate, a filter plate is arranged inside the air exhaust barrel and between the connecting plate and the air exhaust barrel cover, the air exhaust barrel cover is opened to be convenient to take out and replace the filter plate, the filter plate plays a role, and (3) discharging flue gas generated by expanding the graphite material in the microwave heating cavity along the exhaust cylinder, wherein the flue gas is filtered by the filter plate in the discharging process, and clean gas is discharged.
Furthermore, the upper wall of the microwave heating cavity and the position corresponding to the positive-pressure bulk cargo device are provided with a feeding hole, the feeding hole is connected with a feeding cavity, the feeding cavity is connected with a storage hopper, the open end of the storage hopper is provided with a hopper cover, the storage hopper and the connecting end of the feeding cavity are provided with an electric control valve, the graphite material is added into the storage hopper by opening the hopper cover, and the graphite material can be added into the microwave heating cavity by controlling the electric control valve.
Further, the symmetry is provided with the stabilizer blade on the diapire in microwave heating chamber, and the stabilizer blade is used for propping up microwave heating chamber from ground, and the stabilizer blade will be located the discharge gate on the cooling jacket diapire and prop up from ground, and the discharge gate that is located on the cooling jacket diapire is final popped graphite ejection of compact position, and it is higher than ground and makes things convenient for to connect popped graphite greatly in using the container.
Further, the microwave heating chamber is round handle shape cavity, and malleation scatterer is located the circular department of diapire in microwave heating chamber, and malleation scatterer will blow off to round handle shape cavity week side space in from the graphite material in, makes the graphite material wholly be the dispersed state, through microwave generator work, with the graphite material puffing under the dispersed state, the graphite material under the dispersed state is compared in the graphite material under the accumulation stone material state, and popped homogeneity is better.
Drawings
FIG. 1 is a sectional view of the main structure of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the invention at B of FIG. 1;
fig. 4 is a front view of the exhaust device of the present invention.
In the figure: 1-microwave heating cavity, 2-positive pressure material dispersing device, 201-air outlet cylinder, 202-fixing plate, 203-positive pressure fan, 204-intercepting net, 3-microwave generator, 4-slope part, 5-material outlet pipe, 6-cooling jacket, 7-air exhaust device, 701-air exhaust cylinder, 702-air exhaust cylinder cover, 703-clamping brim, 704-connecting plate, 705-negative pressure fan, 706-filter plate, 8-hand hole, 9-feeding cavity, 10-storage hopper, 11-discharge hopper cover and 12-support leg.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
Referring to fig. 1, which is a schematic structural view of a microwave graphite puffing apparatus according to the present invention,
the method comprises the following steps: microwave heating chamber 1, microwave heating chamber 1 is the graphite popped space that provides, set up malleation scatterer 2 on microwave heating chamber 1's the diapire, malleation scatterer 2 is used for following graphite material that gets into along vertical direction upside in microwave heating chamber 1 blows off extremely in microwave heating chamber 1's all side spaces, microwave heating chamber 1's all side wall mounting has microwave generator 3, microwave generator 3 is used for with graphite material microwave heating to the popped state in microwave heating chamber 1, malleation scatterer 2 will blow off to microwave heating chamber 1's all side spaces from the graphite material in, makes the graphite material wholly be the dispersed state, and microwave generator 3 works, and graphite material is popped with the dispersed state under, and graphite material under the dispersed state is compared in the graphite material under the accumulation stone state, and popped homogeneity is better, and the mode that sets up a plurality of microwave generators more than the mistake layer reduces because of graphite material stone uneven thickness reduces to lay material Even and the phenomenon that local expansion is incomplete appears, this equipment passes through malleation tripper 2 work messenger is located the graphite material in the microwave heating chamber 1 is whole to be the dispersed state, effectively makes graphite material thermally equivalent, and popped homogeneity is better, and equipment wholly consumes the energy and is little, and feature of environmental protection and economic nature all obtain effectively promoting.
Referring to fig. 2, specifically, the positive pressure material disperser 2 includes an air outlet barrel 201, an air outlet end of the air outlet barrel 201 is clamped at an upper opening of a bottom wall of the microwave heating chamber 1, a fixing plate 202 is detachably connected to a fixed end of the air outlet barrel 201, the fixing plate 202 is of a cavity structure, a cavity of the fixing plate 202 is communicated with the air outlet barrel 201, a positive pressure fan 203 is installed on the fixing plate 202, an intercepting net 204 is installed inside the air outlet barrel 201, the intercepting net 204 has a purifying effect on air entering the microwave heating chamber 1, the positive pressure material disperser 2 is started, wherein the positive pressure fan 203 works to introduce external air into the microwave heating chamber 1 through the air outlet barrel 201, the external air is filtered by the intercepting net 204 and enters the microwave heating chamber 1 in a positive pressure manner, and the positive pressure material disperser 2 blows graphite material to a peripheral space of the microwave heating chamber 1, the graphite material is dispersed as a whole, and the interception net 204 can be cleaned or replaced by detaching the fixing plate 202.
Referring to fig. 1, specifically, a slope portion 4 is formed on the bottom wall of the microwave heating chamber 1, a discharge pipe 5 is connected to the slope portion 4, the graphite material expanded in the microwave heating chamber 1 is discharged through the discharge pipe 5 along the slope portion 4, the arrangement of the slope portion 4 facilitates the discharge of the graphite expanded in the microwave heating chamber 1, and the expanded graphite material is discharged through the discharge pipe 5 along the slope portion 4.
Referring to fig. 1, specifically, a cooling jacket 6 is annularly arranged on the bottom wall of the microwave heating chamber 1, the cooling jacket 6 is an annular jacket, the expanded graphite material in the microwave heating chamber 1 falls into the cooling jacket 6 through the expanded graphite discharged from the discharge pipe 5 along the slope portion 4, the cooling jacket 6 is used for cooling the expanded graphite, a low temperature inside the cooling jacket 6 is maintained in an interlayer by introducing a cold fluid, so as to realize a cooling effect on the expanded graphite, the positive pressure fan 203 is located at the center of the cooling jacket 6, and the position of the positive pressure fan 203 can effectively utilize a cold source released by the cooling jacket 6, so as to reduce heat generated by the operation of the positive pressure fan.
Referring to fig. 1, specifically, the bottom wall of the cooling jacket 6 is processed in an arc shape, a discharge hole is formed in the bottom wall of the cooling jacket 6, an electric control valve is installed at the discharge hole, the arc-shaped cooling jacket 6 is beneficial for gathering expanded graphite at the position of the arc-shaped bottom wall, the electric control valve is controlled to be opened, and the expanded graphite can be discharged from the discharge hole.
Referring to fig. 3 and 4, specifically, an air exhaust device 7 is disposed on an upper wall of the microwave heating chamber 1, the air exhaust device 7 includes an air exhaust duct 701, a clamping brim 703 is fixedly connected to a peripheral side wall of the air exhaust duct 701, a hand hole 8 is disposed on a peripheral side wall of the clamping brim 703, the hand hole 8 is convenient for an operator to detach the whole air exhaust device 7 from the microwave heating chamber 1, the air exhaust duct 701 is clamped to the upper wall of the microwave heating chamber 1, an air exhaust duct cover 702 is screwed to an air inlet end of the air exhaust duct 701, through holes are uniformly disposed on the air exhaust duct cover 702, a connecting plate 704 is fixedly connected to an inner side wall of the air exhaust duct 701, it can be understood by those skilled in the art that corresponding through holes are also disposed on the connecting plate 704 for air circulation, a negative pressure fan 705 is mounted on the connecting plate 704, the inside of exhaust dryer 701 just is located the connecting plate 704 with be provided with filter 706 between the cover 702 of exhaust air, open cover 702 of exhaust air, be convenient for with filter 706 takes out the change, filter 706 is right microwave heating chamber 1 exhaust gas plays the purification effect, starts negative-pressure air fan 705 work, will the popped produced flue gas of graphite material is followed in the microwave heating chamber 1 exhaust air duct 701, and the exhaust in-process flue gas passes through filter 706 filters, and clean gas is discharged.
Referring to fig. 1, specifically, a feed inlet is formed in a position, corresponding to the positive pressure material disperser 2, of the upper wall of the microwave heating cavity 1, a feed cavity 9 is connected to the feed inlet, a storage hopper 10 is connected to the feed cavity 9, a discharge hopper cover 11 is arranged at an opening end of the storage hopper 10, an electric control valve is installed at a connection end of the storage hopper 10 and the feed cavity 9, a graphite material is added into the storage hopper 10 by opening the discharge hopper cover 11, and the graphite material can be added into the microwave heating cavity 1 by controlling the electric control valve.
Referring to fig. 1, specifically, support legs 12 are symmetrically arranged on the bottom wall of the microwave heating chamber 1, the support legs 12 are used for supporting the microwave heating chamber 1 from the ground, the support legs 12 support a discharge hole located on the bottom wall of the cooling jacket 6 from the ground, and the discharge hole located on the bottom wall of the cooling jacket 6 is a final expanded graphite discharge position, which is higher than the ground, so that a container used for containing expanded graphite is convenient to receive.
Referring to fig. 1, specifically, the microwave heating chamber 1 is a round-stem-shaped cavity, the positive pressure material dispenser 2 is located at a circular position of a bottom wall of the microwave heating chamber 1, the positive pressure material dispenser 2 blows away graphite materials into a peripheral space of the round-stem-shaped cavity, so that the graphite materials are integrally in a dispersed state, the graphite materials in the dispersed state are puffed through the work of the microwave generator 3, and the puffing uniformity of the graphite materials in the dispersed state is better than that of the graphite materials in an accumulated material spreading state.
Referring to fig. 1, a method for puffing microwave graphite includes the following steps:
step 1: opening the discharge hopper cover 11, adding graphite materials into the storage hopper 10, and starting the positive pressure material scattering device 2, wherein the positive pressure fan 203 works to guide external air into the microwave heating cavity 1 through the air outlet cylinder 201, and the external air enters the microwave heating cavity 1 in a positive pressure mode after being filtered by the interception net 204;
step 2: controlling an electric control valve on a storage hopper 10 to be opened, allowing the graphite material to enter the microwave heating cavity 1 through a feeding cavity 9, allowing positive pressure air to fall relatively in the step 1, blowing the graphite material to the peripheral space of the microwave heating cavity 1 by a positive pressure material diffuser 2, so that the graphite material is in a dispersed state integrally, and allowing a microwave generator 3 to work to expand the graphite material in the dispersed state;
and step 3: the expanded graphite material is discharged from a discharge pipe 5 along the slope part 4 and falls into a cooling jacket 6, and the expanded graphite is cooled by the cooling jacket 6 and discharged along a discharge hole on the bottom wall of the cooling jacket 6;
and 4, step 4: and starting the negative pressure fan 705 to work, discharging flue gas generated by expanding the graphite material in the microwave heating cavity 1 along the exhaust cylinder 701, filtering the flue gas by the filter plate 706 in the discharging process, and discharging clean gas.
The working principle is as follows: the microwave heating cavity 1 provides space for graphite expansion, a positive pressure material dispersing device 2 is arranged on the bottom wall of the microwave heating cavity 1, the positive pressure material dispersing device 2 is used for blowing graphite materials entering from the microwave heating cavity 1 along the upper side of the vertical direction into the peripheral space of the microwave heating cavity 1, a microwave generator 3 is arranged on the peripheral wall of the microwave heating cavity 1, the microwave generator 3 is used for heating the graphite materials in the microwave heating cavity 1 to an expanded state in a microwave mode, the positive pressure material dispersing device 2 blows the graphite materials into the peripheral space of the microwave heating cavity 1, so that the graphite materials are integrally in a dispersed state, the microwave generator 3 works to expand the graphite materials in the dispersed state, the graphite materials in the dispersed state are better in expansion uniformity compared with the graphite materials in an accumulated material spreading state, and the phenomenon that partial expansion is not complete due to uneven material spreading thickness of the graphite materials is avoided by arranging a plurality of microwave generators in staggered layers, this equipment makes the whole disperse state that is located the graphite material in microwave heating chamber 1 through 2 work of malleation scatterer, effectively makes graphite material thermally equivalent, and popped homogeneity is better, and the whole energy consumption of equipment is little, and feature of environmental protection and economic nature all obtain effectively promoting. Firstly, opening a discharge hopper cover 11, adding graphite materials into a storage hopper 10, starting a positive pressure material dispersing device 2, wherein a positive pressure fan 203 works to guide external air into a microwave heating cavity 1 through an air outlet cylinder 201, the external air enters the microwave heating cavity 1 in a positive pressure mode through a blocking net 204, an electric control valve on the storage hopper 10 is controlled to be opened, the graphite materials enter the microwave heating cavity 1 through a feeding cavity 9 and fall relatively to the positive pressure air, the positive pressure material dispersing device 2 blows the graphite materials to the peripheral space of the microwave heating cavity 1, so that the graphite materials are integrally in a dispersed state, a microwave generator 3 works to disperse the graphite materials in the dispersed state, the expanded graphite materials are discharged from a discharge pipe 5 along a slope part 4 and fall into a cooling jacket 6, the expanded graphite is cooled by the cooling jacket 6 and discharged along a discharge port on the bottom wall of the cooling jacket 6, and simultaneously, a negative pressure fan 705 works, the flue gas generated by expanding the graphite material in the microwave heating cavity 1 is discharged along the exhaust cylinder 701, and the flue gas is filtered by the filter plate 706 in the discharging process, so that clean gas is discharged.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A microwave graphite puffing device is characterized by comprising:
microwave heating chamber (1), microwave heating chamber (1) is graphite popped and provides the space, set up malleation scatterer (2) on the diapire of microwave heating chamber (1), malleation scatterer (2) are used for following the graphite material that gets into along vertical direction upside blows off extremely in microwave heating chamber (1) week side space, microwave heating chamber (1) week side wall mounting has microwave generator (3), microwave generator (3) are used for with graphite material microwave heating to the popped state in microwave heating chamber (1).
2. The microwave graphite puffing equipment is characterized in that the positive pressure material dispersing device (2) comprises an air outlet barrel (201), the air outlet end of the air outlet barrel (201) is clamped at the upper opening of the bottom wall of the microwave heating cavity (1), the fixed end of the air outlet barrel (201) is detachably connected with a fixed plate (202), the inside of the fixed plate (202) is of a cavity structure, a cavity of the fixed plate (202) is communicated with the air outlet barrel (201), a positive pressure fan (203) is installed on the fixed plate (202), an intercepting net (204) is arranged inside the air outlet barrel (201), and the intercepting net (204) plays a role in purifying air entering the microwave heating cavity (1).
3. The microwave graphite puffing equipment according to claim 2, wherein a slope portion (4) is arranged on the bottom wall of the microwave heating chamber (1), a discharging pipe (5) is communicated with the slope portion (4), and the puffed graphite material in the microwave heating chamber (1) is discharged through the discharging pipe (5) along the slope portion (4).
4. The microwave graphite puffing equipment according to claim 3, wherein a cooling jacket (6) is annularly arranged on the bottom wall of the microwave heating chamber (1), the cooling jacket (6) is an annular jacket, the puffed graphite material in the microwave heating chamber (1) falls into the cooling jacket (6) along the puffed graphite discharged from the discharge pipe (5) through the slope portion (4), the cooling jacket (6) is used for cooling the puffed graphite, and the positive pressure fan (203) is located at the center of the ring of the cooling jacket (6).
5. The microwave graphite puffing equipment according to claim 4, wherein the bottom wall of the cooling jacket (6) is processed in an arc shape, a discharge hole is formed in the bottom wall of the cooling jacket (6), and an electric control valve is installed at the discharge hole.
6. The microwave graphite puffing equipment according to claim 4, wherein an air exhausting device (7) is arranged on the upper wall of the microwave heating cavity (1), the air exhausting device (7) comprises an air exhausting barrel (701), a clamping connection brim (703) is fixedly connected to the peripheral side wall of the air exhausting barrel (701), a hand hole (8) is formed in the peripheral side wall of the clamping connection brim (703), the air exhausting barrel (701) is clamped to the upper wall of the microwave heating cavity (1), an air exhausting barrel cover (702) is in threaded connection with the air inlet end of the air exhausting barrel (701), through holes are uniformly formed in the air exhausting barrel cover (702), a connecting plate (704) is fixedly connected to the inner side wall of the air exhausting barrel (701), a negative pressure fan (705) is installed on the connecting plate (704), a filter plate (706) is arranged inside the air exhausting barrel (701) and located between the connecting plate (704) and the air exhausting barrel cover (702), the filter plate (706) has a purification effect on the gas exhausted from the microwave heating cavity (1).
7. The microwave graphite puffing equipment according to claim 6, wherein a feeding hole is formed in the upper wall of the microwave heating cavity (1) and at a position corresponding to the positive pressure material dispersing device (2), a feeding cavity (9) is connected to the feeding hole, a storage hopper (10) is connected to the feeding cavity (9), a hopper cover (11) is arranged at the opening end of the storage hopper (10), and an electric control valve is installed at the connecting end of the storage hopper (10) and the feeding cavity (9).
8. The microwave graphite puffing equipment according to claim 5, wherein support legs (12) are symmetrically arranged on the bottom wall of the microwave heating cavity (1), the support legs (12) are used for supporting the microwave heating cavity (1) from the ground, and the support legs (12) support a discharge port on the bottom wall of the cooling jacket (6) from the ground.
9. The microwave graphite puffing apparatus according to any one of claims 1 to 8, wherein the microwave heating chamber (1) is a round-handle-shaped cavity, and the positive pressure dispenser (2) is located at the round position of the bottom wall of the microwave heating chamber (1).
10. The microwave graphite puffing method is characterized by comprising the following steps:
step 1: opening a hopper cover (11), adding graphite materials into a storage hopper (10), starting a positive pressure material scattering device (2), wherein a positive pressure fan (203) works to guide external air into a microwave heating cavity (1) through an air outlet cylinder (201), and the external air enters the microwave heating cavity (1) in a positive pressure mode after being filtered by an interception net (204);
step 2: controlling an electric control valve on a storage hopper (10) to be opened, allowing graphite materials to enter a microwave heating cavity (1) through a feeding cavity (9), allowing positive pressure air to fall relatively in the step (1), blowing the graphite materials to the peripheral space of the microwave heating cavity (1) by a positive pressure material diffuser (2), so that the graphite materials are dispersed integrally, and allowing a microwave generator (3) to work to expand the graphite materials in the dispersed state;
and step 3: the expanded graphite material is discharged from a discharge pipe (5) along the slope part (4) and falls into a cooling jacket (6), and the expanded graphite is cooled by the cooling jacket (6) and discharged along a discharge hole on the bottom wall of the cooling jacket (6);
and 4, step 4: and (3) starting a negative pressure fan (705) to work, discharging flue gas generated by expanding graphite materials in the microwave heating cavity (1) along an exhaust cylinder (701), filtering the flue gas by a filter plate (706) in the discharging process, and discharging clean gas.
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| CN202011562490.6A CN112551520A (en) | 2020-12-25 | 2020-12-25 | Microwave graphite puffing equipment |
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| CN202011562490.6A CN112551520A (en) | 2020-12-25 | 2020-12-25 | Microwave graphite puffing equipment |
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| CN112551520A true CN112551520A (en) | 2021-03-26 |
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| WO2007047084A2 (en) * | 2005-10-14 | 2007-04-26 | The Trustees Of Princeton University | Thermally exfoliated graphite oxide |
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| CN205170395U (en) * | 2015-11-25 | 2016-04-20 | 安徽易能新材料科技有限公司 | A device for preparing high -purity expandable graphite |
| US20180305213A1 (en) * | 2017-04-19 | 2018-10-25 | Nanotek Instruments, Inc, | Microwave System and Method for Graphene Production |
| CN108715445A (en) * | 2018-07-14 | 2018-10-30 | 深圳市星聚工业自动化有限公司 | A kind of microwave gas diffusion method expanded graphite expanding apparatus |
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| CN208667108U (en) * | 2018-07-14 | 2019-03-29 | 深圳市星聚工业自动化有限公司 | A kind of microwave gas diffusion method expanded graphite extruding apparatus |
| CN111006446A (en) * | 2019-12-14 | 2020-04-14 | 贵州师范学院 | Horizontal microwave heating fluidized bed |
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| WO2007047084A2 (en) * | 2005-10-14 | 2007-04-26 | The Trustees Of Princeton University | Thermally exfoliated graphite oxide |
| CN202131095U (en) * | 2010-12-21 | 2012-02-01 | 东华大学 | Controllable microwave device for preparing expanded graphite by airflow method |
| CN205170395U (en) * | 2015-11-25 | 2016-04-20 | 安徽易能新材料科技有限公司 | A device for preparing high -purity expandable graphite |
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