CN218931725U - Horizontal-vertical collaborative continuous graphitization device - Google Patents
Horizontal-vertical collaborative continuous graphitization device Download PDFInfo
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- CN218931725U CN218931725U CN202220950787.8U CN202220950787U CN218931725U CN 218931725 U CN218931725 U CN 218931725U CN 202220950787 U CN202220950787 U CN 202220950787U CN 218931725 U CN218931725 U CN 218931725U
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Abstract
The utility model relates to a horizontal-vertical collaborative continuous graphitizing device which comprises a self-heating graphite tube rotary cylinder, a power-receiving electrode rod, an externally-heating heat-resistant steel rotary cylinder and a graphitizing vertical furnace, wherein the self-heating graphite tube rotary cylinder is connected with the externally-heating heat-resistant steel rotary cylinder in series, the inner cylinder of the self-heating graphite tube rotary cylinder is a graphite tube, the two ends of the graphite tube are connected with an electric slip ring and are electrified and heated through the power-receiving electrode rod, the inner cylinder of the externally-heating heat-resistant steel rotary cylinder is a heat-resistant steel cylinder, the feeding end of the heat-resistant steel cylinder is connected with a feeding fixed end, the discharging end of the self-heating graphite tube rotary cylinder is connected with a discharging fixed end, and the graphitizing vertical furnace is arranged below the discharging fixed end and is connected with a discharging port of the discharging fixed end. The beneficial effects of the utility model are as follows: the carbon material is coated, carbonized at low temperature, carbonized at high temperature and graphitized in one set of device to realize the collaborative continuous production, thus realizing electricity saving, environmental protection, high yield and high quality.
Description
Technical Field
The utility model relates to industrial furnace equipment, in particular to a horizontal-vertical collaborative continuous graphitizing device.
Background
In the production process of the battery graphite cathode material, a plurality of sets of equipment and production processes are adopted, all the working procedures cannot be continuously carried out, the process of coating by petroleum coke or asphalt coke, low-temperature carbonization, high-temperature carbonization and graphitization is finished in different equipment, and the process of heating and cooling for many times is required, so that the energy consumption is high and the pollution is serious.
The main technical difficulties existing in the prior art are as follows: the coated petroleum coke or asphalt coke contains a large amount of volatile matters, so that graphitization cannot be performed in one step, otherwise, the performance of a coating material is damaged, a furnace spraying accident can be formed by quickly separating out a large amount of volatile matters, the three low-temperature carbonization and the high-temperature carbonization are integrated together, the difficulty is quite high, and continuous graphitization is limited by materials which do not pass through the high-temperature carbonization, particularly powder, so that a shed furnace, a furnace blocking furnace and a furnace spraying furnace can be caused.
Disclosure of Invention
The utility model aims to provide a horizontal-vertical collaborative continuous graphitizing device which integrates the coating, low-temperature carbonization, high-temperature carbonization and graphitization of a carbon material into a set of device for collaborative continuous production, thereby realizing electricity saving, environmental protection, high yield and high quality.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the utility model provides a stand in parallel and cooperate continuous graphitization device, includes from hot-producing graphite pipe rotary drum, receives electric pole, external heating heat-resisting steel rotary drum, graphitization vertical furnace, from hot-producing graphite pipe rotary drum with external heating heat-resisting steel rotary drum establishes ties, from the inner tube of hot-producing graphite pipe rotary drum is the graphite pipe, the electrical slip ring is connected at the both ends of graphite pipe to through receiving electric pole circular heating, the inner tube of external heating heat-resisting steel rotary drum is heat-resisting steel drum, the charge stiff end is connected to the feeding one end of heat-resisting steel drum, the discharge stiff end is connected to the ejection of compact one end of self-producing graphite pipe rotary drum, graphitization vertical furnace sets up the below of discharge stiff end to be connected with the discharge gate of ejection of compact stiff end.
The graphitizing vertical furnace comprises an inner graphite column, an outer graphite cylinder and a material cooler, wherein the inner graphite column and the outer graphite cylinder form an annular channel, the inner graphite column and the outer graphite cylinder are respectively connected with electrodes, the annular channel is communicated with a discharge port of a discharge fixed end, a discharging pipe is arranged at the bottom of the annular channel, the material cooler is arranged at the lower part of the discharging pipe, and a heat insulation layer and a supporting device are arranged outside the outer graphite cylinder.
The utility model discloses a graphitized vertical furnace is connected to the discharge end, including the steel construction casing, fire-resistant thermal insulation material layer, push-pull valve, ejection of compact chute, the steel construction casing parcel is in the outside on fire-resistant thermal insulation material layer, fire-resistant thermal insulation material layer is inside to be the ejection of compact chamber, the discharge end of self-heating graphite pipe revolving drum inserts in the ejection of compact chamber, ejection of compact chamber bottom sets up push-pull valve, ejection of compact chute, graphitized vertical furnace is connected to the discharge gate of ejection of compact chute.
The fixed end of feeding includes steel construction casing, fire-resistant thermal insulation material layer, screw feeder, the outside at fire-resistant thermal insulation material layer is wrapped up in to steel construction casing, fire-resistant thermal insulation material layer is inside to be the feed chamber, in the feed chamber was inserted to the feed end of heat-resistant steel cylinder, the feed end of heat-resistant steel cylinder is connected to screw feeder.
A sealing device is arranged between the heat-resistant steel cylinder and the charging fixed end, and a sealing device is arranged between the self-heating graphite tube rotary cylinder and the discharging fixed end.
The sealing device comprises a flexible sealing ring, a graphite sealing ring, an outer fixing pipe, an inner sealing pipe and a sealing aligning device, wherein the inner sealing pipe is connected with a self-heating graphite pipe rotary cylinder or a heat-resistant steel cylinder through the sealing aligning device, a plurality of layers of flexible sealing rings are axially arranged between the inner sealing pipe and the outer fixing pipe, the innermost side of the plurality of layers of flexible sealing rings is provided with the graphite sealing ring, and the outer fixing pipe is connected with a discharging fixed end or a charging fixed end.
The sealing aligning device comprises a distance adjusting screw rod and a ripple expander, the self-heating graphite tube rotary cylinder or the heat-resistant steel cylinder is connected with the inner sealing tube through the distance adjusting screw rod, and the ripple expander for sealing is further arranged between the self-heating graphite tube rotary cylinder or the heat-resistant steel cylinder and the inner sealing tube.
The self-heating graphite tube rotary cylinder comprises a graphite tube, a fireproof insulating heat-insulating material layer wrapped on the outer side of the graphite tube and a steel shell fixed on the outer portion of the fireproof insulating heat-insulating material layer.
The self-heating graphite tube rotary cylinder and the externally heating heat-resistant steel rotary cylinder are integrally inclined, the inclination angle is 1-5 degrees, and the transmission device adopts variable frequency speed regulation.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a horizontal-vertical collaborative continuous graphitizing device, which integrates the coating, low-temperature carbonization, high-temperature carbonization and graphitization of a carbon material into a set of device for collaborative continuous production, thereby realizing electricity saving, environmental protection, high yield and high quality.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
in the figure: the device comprises a 1-feeding system, a 2-feeding fixed end, a 3-heat-resistant steel cylinder, a 4-transmission device, a 5-power receiving electrode rod, a 6-electric slip ring, a 7-graphite tube, an 8-discharging fixed end, a 9-discharging chute, a 10-inner graphite column, an 11-outer graphite cylinder, a 12-heat insulation layer and a supporting device, a 13-material cooler, a 14-vertical furnace sealing rotary discharger, a 15-supporting roller, a 16-spiral feeder, a 17-flexible sealing ring, a 18-graphite sealing ring, a 19-distance adjusting screw rod and a 20-ripple expander. 21-electrode.
Detailed Description
The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:
see fig. 1, a horizontal-vertical collaborative continuous graphitizing device comprises a self-heating graphite tube rotary cylinder, a power-receiving electrode rod 5, an externally heating heat-resistant steel rotary cylinder and a graphitizing vertical furnace, wherein the self-heating graphite tube rotary cylinder is connected with the externally heating heat-resistant steel rotary cylinder in series, the inner cylinder of the self-heating graphite tube rotary cylinder is a graphite tube 7, the two ends of the graphite tube 7 are connected with an electric slip ring 6 and are electrically heated through the power-receiving electrode rod 5, the inner cylinder of the externally heating heat-resistant steel rotary cylinder is a heat-resistant steel cylinder 3, the heat-resistant steel cylinder 3 is connected with the graphite tube 7 through an insulating flange, the feeding end of the heat-resistant steel cylinder 3 is connected with a feeding fixed end 2, the discharging end 8 is connected with the discharging end of the self-heating graphite tube rotary cylinder, and the graphitizing vertical furnace is arranged below the discharging fixed end 8 and is connected with a discharging port of the discharging fixed end 8.
The two ends of the graphite tube 7 in the high temperature area adopt the power receiving electrode rod 5 and the electric slip ring 6 to convey electricity into the graphite tube 7, the graphite tube 7 generates heat under the action of current, and the graphite can bear the high temperature of more than 3000 ℃ under the condition of isolating air, so that the graphite rotary cylinder can bear the high temperature of more than 2000 ℃.
The graphitizing vertical furnace comprises an inner graphite column 10, an outer graphite cylinder 11 and a material cooler 13, wherein the inner graphite column 10 and the outer graphite cylinder 11 form an annular channel, the inner graphite column 10 and the outer graphite cylinder 11 are respectively connected with an electrode 21, the annular channel is communicated with a discharge port of the discharge fixing end 8, the bottom of the annular channel is provided with a blanking pipe, the lower part of the blanking pipe is provided with the material cooler 13, and a heat insulation insulating layer and a supporting device 12 are arranged outside the outer graphite cylinder 11.
The discharging fixed end 8 comprises a steel structure shell, a fireproof heat-insulating material layer, a gate valve and a discharging chute 9, wherein the steel structure shell is wrapped outside the fireproof heat-insulating material layer, a discharging cavity is formed in the fireproof heat-insulating material layer, the discharging end of the self-heating graphite tube rotary cylinder is inserted into the discharging cavity, the gate valve and the discharging chute 9 are arranged at the bottom of the discharging cavity, and a discharging hole of the discharging chute 9 is connected with the graphitizing vertical furnace.
The charging fixed end 2 comprises a steel structure shell, a refractory heat-insulating material layer and a screw feeder 16, wherein the steel structure shell is wrapped outside the refractory heat-insulating material layer, a feeding cavity is formed inside the refractory heat-insulating material layer, the feeding end of the heat-resistant steel cylinder 3 is inserted into the feeding cavity, and the screw feeder 16 is connected with the feeding end of the heat-resistant steel cylinder 3.
The screw feeder 16 extends into the feeding cavity from the side of the loading fixed end 2 and is connected with the heat-resistant steel cylinder 3, and a ripple compensator is arranged between the part of the screw feeder 16 outside the loading fixed end 2 and is used for loading sealing. The feed inlet of the screw feeder 16 is connected to the feeding system 1.
A sealing device is arranged between the heat-resistant steel cylinder 3 and the charging fixed end 2, and a sealing device is arranged between the self-heating graphite tube rotary cylinder and the discharging fixed end 8.
The sealing device comprises a flexible sealing ring 17, a graphite sealing ring 18, an outer fixing tube, an inner sealing tube and a sealing aligning device, wherein the inner sealing tube is connected with a self-heating graphite tube rotary cylinder or a heat-resistant steel cylinder 3 through the sealing aligning device, a plurality of layers of flexible sealing rings 17 are axially arranged between the inner sealing tube and the outer fixing tube, the graphite sealing ring 18 is arranged at the innermost side of the plurality of layers of flexible sealing rings 17, and the outer fixing tube is connected with a discharging fixed end 8 or a charging fixed end 2.
The sealing aligning device comprises a distance adjusting screw rod 19 and a corrugated expander 20, wherein the self-heating graphite tube rotary cylinder or the heat-resistant steel cylinder 3 is connected with an inner sealing tube through the distance adjusting screw rod 19, and the corrugated expander 20 used for sealing is further arranged between the self-heating graphite tube rotary cylinder or the heat-resistant steel cylinder 3 and the inner sealing tube.
The concentricity of the sealing device and the self-heating graphite tube rotary cylinder or the heat-resistant steel cylinder 3 is adjusted by the sealing aligning device.
The middle of the distance adjusting screw 19 is provided with a nut, the two ends of the distance adjusting screw are provided with screw rods with positive and negative threads, the length of the distance adjusting screw is adjusted by screwing the screw nuts, so that the radial distance between the inner sealing tube and the self-heating graphite tube rotary drum or the external heating heat-resistant steel rotary drum is adjusted, the concentricity of the sealing surface cylinder and the rotary kiln is achieved in the circumferential direction through the adjustment of the screw rods, and the corrugated expander 20 plays a role in sealing the inside and the outside of the kiln and can provide position compensation during debugging.
The self-heating graphite tube rotary cylinder or the externally heating heat-resistant steel rotary cylinder is installed in place and then is subjected to manual sealing surface alignment, namely, concentricity of the sealing device and the rotary cylinder is adjusted, a plurality of distance adjusting screw rods 19 play roles in adjusting concentricity and supporting the sealing device, the purpose of aligning during construction adjustment is achieved, and after adjustment is finished, an external fixing tube is fixedly connected with a charging fixing end 2 or a discharging fixing end 8 through bolts.
The self-heating graphite tube rotary cylinder comprises a graphite tube 7, a fireproof insulating heat-insulating material layer wrapped on the outer side of the graphite tube 7, and a steel shell fixed on the outer portion of the fireproof insulating heat-insulating material layer.
A horizontal-vertical collaborative continuous graphitization process adopts a horizontal rotary heating furnace and a graphitizing vertical furnace for collaborative production, wherein the horizontal rotary heating furnace is formed by connecting a low temperature area and a high temperature area in series, and discharging materials in the high temperature area are fed into the graphitizing vertical furnace, and the process specifically comprises the following steps:
1) The low temperature area adopts a heat-resistant steel roller to perform external heating to complete the coating and low-temperature carbonization of the carbon material, and the heating temperature interval is adjustable from room temperature to 1000 ℃;
2) The high temperature area adopts a graphite tube rotary drum to realize power-on self-heating, the heating temperature range is adjustable from 500 ℃ to 1700 ℃, and the high-temperature carbonization and graphitization of the carbon material and the high-temperature carbonization after the secondary cladding of the graphitized material are carried out;
3) The low temperature area and the high temperature area are inclined integrally, the materials are conveyed to the graphitized vertical furnace by the rotary conveying power, and the materials fall into the graphitized vertical furnace by gravity;
4) The anode and the cathode of the graphitizing vertical furnace are made of graphite materials, an annular channel is formed between the anode and the cathode, and the carbon material carbonized and pre-graphitized by a high-temperature zone is used as a resistance material to realize continuous heating between the two electrodes, wherein the heating temperature is 3000 ℃ at most.
The whole inclination angle of the low temperature area and the high temperature area is 1-5 degrees, and the transmission device 4 adopts variable frequency speed regulation.
The horizontal rotary heating furnace part adopts two parts of a low temperature area and a high temperature area which are connected in series and integrated into a set of rotary heating furnace, a downward inclination angle is arranged from a charging end to a discharging end, generally 1-5 degrees, and the transmission device 4 adopts variable frequency speed regulation, so that the material quantity passing through the furnace can be automatically regulated. The low temperature area adopts a roller made of heat-resistant steel for external heating, the coating and low-temperature carbonization of the carbon material can be completed, the heating temperature range is adjustable from room temperature to 1000 ℃, the high temperature area adopts a graphite tube rotary drum for electrifying self-heating, the heating temperature range is adjustable from 500 ℃ to 1700 ℃, and the high-temperature carbonization of the carbon material after the high-temperature carbonization and graphitization of the material after the secondary coating can be completed. The graphitizing furnace adopts a vertical furnace, and the material is transported by gravity and is connected to the lower part of a discharge hole of the horizontal rotary furnace to work cooperatively with the rotary heating furnace. The high-temperature materials after high-temperature carbonization by the horizontal rotary kiln are directly added into the vertical graphitizing furnace through the blanking chute, graphite materials are adopted for the anode and the cathode of the vertical graphitizing furnace, an annular channel is formed between the anode and the cathode, the carbon materials pre-graphitized by the high-temperature carbonization are used as resistance materials between the anode and the cathode to realize continuous heating, the material temperature can be heated to 2800 ℃ to 3000 ℃, the temperature is kept for 10 to 30 minutes, graphitization of the carbon materials is realized, and the material quantity in the vertical furnace is regulated by the sealed rotary discharger 14 of the vertical furnace to realize cooperation with the horizontal rotary furnace. The lower blanking pipe of the graphitizing vertical furnace is provided with a dividing wall type cooler, and graphitized materials are discharged out of the furnace through a rotary vertical furnace sealing rotary discharger 14 after being cooled, so that the continuous production process of cladding, low-temperature carbonization, high-temperature carbonization and graphitization is completed.
Claims (9)
1. The utility model provides a lie in and stand collaborative continuous graphitization device, its characterized in that, including self-heating graphite pipe revolving drum, power-receiving electrode stick, external heating heat-resistant steel revolving drum, graphitization vertical furnace, self-heating graphite pipe revolving drum with external heating heat-resistant steel revolving drum establishes ties, self-heating graphite pipe revolving drum's inner tube is the graphite pipe, the electrical slip ring is connected at the both ends of graphite pipe to through power-receiving electrode stick circular heating, external heating heat-resistant steel revolving drum's inner tube is heat-resistant steel cylinder, the charge stiff end is connected to heat-resistant steel cylinder's feeding one end, self-heating graphite pipe revolving drum's ejection of compact one end is connected ejection of compact stiff end, graphitization vertical furnace sets up the below of ejection of compact stiff end, and be connected with the discharge gate of ejection of compact stiff end.
2. The horizontal-vertical collaborative continuous graphitizing device according to claim 1, wherein the graphitizing vertical furnace comprises an inner graphite column, an outer graphite cylinder and a material cooler, wherein the inner graphite column and the outer graphite cylinder are respectively connected with electrodes, the annular channel is communicated with a discharge hole of the discharge fixed end, a blanking pipe is arranged at the bottom of the annular channel, the material cooler is arranged at the lower part of the blanking pipe, and a heat insulation layer and a supporting device are arranged outside the outer graphite cylinder.
3. The horizontal-vertical collaborative continuous graphitizing device according to claim 1, wherein the discharging fixed end comprises a steel structure shell, a refractory and heat-insulating material layer, a gate valve and a discharging chute, the steel structure shell is wrapped outside the refractory and heat-insulating material layer, a discharging cavity is formed inside the refractory and heat-insulating material layer, the discharging end of the self-heating graphite tube rotary drum is inserted into the discharging cavity, the gate valve and the discharging chute are arranged at the bottom of the discharging cavity, and a discharging port of the discharging chute is connected with the graphitizing vertical furnace.
4. The horizontal-vertical collaborative continuous graphitizing device according to claim 1, wherein the loading fixed end comprises a steel structure shell, a refractory and heat-insulating material layer and a screw feeder, the steel structure shell is wrapped outside the refractory and heat-insulating material layer, a feeding cavity is formed inside the refractory and heat-insulating material layer, a feeding end of the heat-resistant steel cylinder is inserted into the feeding cavity, and the screw feeder is connected with a feeding end of the heat-resistant steel cylinder.
5. The horizontal-vertical collaborative continuous graphitizing device according to claim 1, wherein a sealing device is arranged between the heat-resistant steel cylinder and the loading fixed end, and a sealing device is arranged between the self-heating graphite tube rotary cylinder and the discharging fixed end.
6. The horizontal-vertical collaborative continuous graphitizing device according to claim 5, wherein the sealing device comprises a flexible sealing ring, a graphite sealing ring, an outer fixing tube, an inner sealing tube and a sealing aligning device, the inner sealing tube is connected with a self-heating graphite tube rotary cylinder or a heat-resistant steel cylinder through the sealing aligning device, a plurality of layers of flexible sealing rings are axially arranged between the inner sealing tube and the outer fixing tube, the graphite sealing ring is arranged at the innermost side of the plurality of layers of flexible sealing rings, and the outer fixing tube is connected with a discharging fixing end or a charging fixing end.
7. The horizontal-vertical collaborative continuous graphitizing device according to claim 6, wherein the sealing aligning device comprises a distance adjusting screw rod and a corrugated expander, the self-heating graphite tube rotary cylinder or the heat-resistant steel cylinder is connected with the inner sealing tube through the distance adjusting screw rod, and the corrugated expander for sealing is further arranged between the self-heating graphite tube rotary cylinder or the heat-resistant steel cylinder and the inner sealing tube.
8. The horizontal-vertical collaborative continuous graphitizing device according to claim 1, wherein the self-heating graphite tube rotary cylinder comprises a graphite tube, a fire-resistant insulating material layer wrapped outside the graphite tube, and a steel shell fixed outside the fire-resistant insulating material layer.
9. The horizontal and vertical collaborative continuous graphitization apparatus according to claim 1, wherein the self-heating graphite tube rotary drum and the externally heated heat resistant steel rotary drum are integrally tilted at an angle of 1 ° -5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220950787.8U CN218931725U (en) | 2022-04-22 | 2022-04-22 | Horizontal-vertical collaborative continuous graphitization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220950787.8U CN218931725U (en) | 2022-04-22 | 2022-04-22 | Horizontal-vertical collaborative continuous graphitization device |
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| Publication Number | Publication Date |
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| CN218931725U true CN218931725U (en) | 2023-04-28 |
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| CN202220950787.8U Active CN218931725U (en) | 2022-04-22 | 2022-04-22 | Horizontal-vertical collaborative continuous graphitization device |
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- 2022-04-22 CN CN202220950787.8U patent/CN218931725U/en active Active
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