CN114593601A - Silicon micropowder high-temperature smelting equipment and method for lithium battery silicon cathode material - Google Patents
Silicon micropowder high-temperature smelting equipment and method for lithium battery silicon cathode material Download PDFInfo
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- CN114593601A CN114593601A CN202210241404.4A CN202210241404A CN114593601A CN 114593601 A CN114593601 A CN 114593601A CN 202210241404 A CN202210241404 A CN 202210241404A CN 114593601 A CN114593601 A CN 114593601A
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- 238000003723 Smelting Methods 0.000 title claims abstract description 105
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 56
- 239000010703 silicon Substances 0.000 title claims abstract description 56
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000010406 cathode material Substances 0.000 title abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 53
- 239000000463 material Substances 0.000 claims abstract description 46
- 238000002844 melting Methods 0.000 claims abstract description 24
- 230000008018 melting Effects 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 241000463219 Epitheca Species 0.000 claims abstract description 7
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims description 50
- 238000003756 stirring Methods 0.000 claims description 37
- 238000005253 cladding Methods 0.000 claims description 17
- 239000007773 negative electrode material Substances 0.000 claims description 12
- 241001062472 Stokellia anisodon Species 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 8
- 244000309464 bull Species 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 4
- 241001417490 Sillaginidae Species 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 7
- 238000010030 laminating Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 description 13
- 239000012535 impurity Substances 0.000 description 8
- 238000012546 transfer Methods 0.000 description 8
- 239000011863 silicon-based powder Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Silicon Compounds (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The high-temperature smelting equipment and the high-temperature smelting method for the silicon micropowder used for the silicon cathode material of the lithium battery belong to the technical field of silicon micropowder smelting, and are used for solving the problems that the existing silicon micropowder smelting process needs to be heated, harmful gas can be generated in the heating process, and polluted air is directly discharged, so that the environmental protection efficiency is poor; secondly, current melting equipment sealing efficiency is poor, and gets the material inconvenient, and secondly can't carry out real-time control to melting temperature, influences melting efficiency. Through accurate control smelting temperature, efficiency and quality are smelted to the improvement silica micropowder, the oblique shape end in guide fill upper end and the laminating of overcoat epitheca inner wall, the material of effectively guaranteeing to get into effectively falls to in the smelting inner bag, prevent that the material is extravagant, guarantee that overcoat epitheca and lower shell cover are adding the junction leakproofness man-hour, prevent to add man-hour inside gas leakage, improve whole environmental protection efficiency, imitate the heat utilization to gas, improve the utilization efficiency of resources, effectively utilize heat energy, improve energy-conserving efficiency.
Description
Technical Field
The invention relates to the technical field of silicon micropowder smelting, in particular to high-temperature silicon micropowder smelting equipment and a high-temperature silicon micropowder smelting method for a lithium battery silicon cathode material.
Background
The fused silica (WG) is prepared from natural quartz through high-temp smelting, cooling, and processing to obtain amorphous SiO 2. The product has high purity, small thermal expansion coefficient, low internal stress, high moisture resistance, low radioactivity and other excellent characteristics.
The epoxy resin is mainly used for plastic packaging materials, epoxy casting materials, potting materials and other chemical fields for large-scale and super-large-scale integrated circuits.
1. In the existing silicon micro powder smelting process, the silicon micro powder needs to be heated, harmful gas can be generated in the heating process, and polluted air is directly discharged, so that the environmental protection efficiency is poor;
2. secondly, current melting equipment sealing efficiency is poor, and gets the material inconvenient, and secondly can't carry out real-time control to melting temperature, influences melting efficiency.
Disclosure of Invention
The invention aims to provide high-temperature smelting equipment and a high-temperature smelting method for silicon micropowder for a lithium battery silicon cathode material, which can accurately control the smelting temperature according to needs and improve the smelting efficiency and quality of the silicon micropowder, wherein the inclined end at the upper end of a guide hopper is attached to the inner wall of an upper shell of an outer sleeve, so that the fed materials are effectively ensured to effectively fall into a smelting inner container, the waste of the materials is prevented, the tightness of the joint of the upper shell and a lower shell of the outer sleeve during machining is ensured, the leakage of internal gas during machining is prevented, the whole environmental protection efficiency is improved, the heat utilization of the gas is effectively realized, the resource utilization efficiency is improved, the heat energy is effectively utilized, the energy-saving efficiency is improved, a brush cleans a rear filter layer during moving, prevents impurities from blocking a filter layer, the cleaned impurities fall into a collection box for collection, and the cleaning efficiency is improved, so that the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme:
lithium cell silicon negative electrode material uses silica flour high temperature melting equipment, including the supporting seat, the below of supporting seat is provided with the pillar, the subassembly is smelted in the top of supporting seat is installed, and the outside of smelting the subassembly is provided with sealed device that opens and shuts, and the top of smelting the subassembly is provided with agitating unit, and the side of smelting the subassembly is provided with gas treatment device.
Further, smelt the subassembly and include that the overcoat is epitheca, lower shell of covering, smelt inner bag and heating element, the below endotheca of overcoat epitheca is provided with lower shell of covering, and the inside of lower shell of covering is provided with smelts the inner bag, and the top of smelting the inner bag is provided with the guide fill, lower shell of covering and smelt and be provided with heating element between the inner bag.
Further, the heating assembly comprises a bottom heating ring, a cladding heating ring, a connecting rod, a temperature detector and a temperature controller, the bottom heating ring is arranged on the bottom end face of the lower connecting sleeve shell and the bottom end face of the smelting inner container, a plurality of groups of cladding heating rings are arranged on the outer side of the smelting inner container in a sheathing mode, the bottom heating ring and the cladding heating rings are connected through the connecting rod, the bottom heating ring and the cladding heating rings are electrically connected with the temperature controller, the temperature controller is electrically connected with the temperature detector, and the temperature detector is arranged in the smelting inner container.
Further, sealed device that opens and shuts includes left telescopic cylinder, right telescopic cylinder, the telescopic link, side fishplate bar and sealed pressfitting piece, left telescopic cylinder and right telescopic cylinder install respectively on the supporting seat of smelting the subassembly both sides, left telescopic cylinder and right telescopic cylinder output all are connected with the telescopic link, the side fishplate bar sets up two sets ofly, fix respectively and smelt subassembly outside both ends, the top of left telescopic cylinder and right telescopic cylinder's telescopic link is connected with two sets of side fishplate bars respectively, left telescopic cylinder and right telescopic cylinder's outer wall and smelt and be provided with sealed pressfitting piece between the subassembly.
Furthermore, the sealing press-fit component comprises an outer sleeve seat, an inserting groove and a sealing gasket, the outer sleeve seat is fixed on the outer side of the smelting component, the inserting groove is formed in the outer sleeve seat, the sealing gasket is fixed on the lower end face of the outer side of the smelting component, and the lower end face of the outer side of the smelting component is in press-fit connection with the inserting groove through the sealing gasket.
Further, agitating unit includes agitator motor, adjustment cylinder, bull stick and puddler, and agitator motor's output is connected with adjustment cylinder, and adjustment cylinder's output is connected with the bull stick, installs the multiunit puddler on the bull stick.
Further, gaseous processing apparatus includes the gas-supply pipe, the backup pad, handle the case, the heat transfer chamber, heat transfer return bend and filtering component, draws together the front end that the gas-supply pipe set up handling the case, and the inside of handling the case has the baffle to separate into two spaces, and the processing incasement portion of baffle one side is provided with the heat transfer chamber, is provided with the heat transfer return bend in the heat transfer chamber, and the one end and the gas-supply pipe of heat transfer return bend are connected, and the other end of heat transfer return bend and another space intercommunication of processing case are provided with filtering component in the processing incasement of heat transfer chamber rear.
Further, the filtering component comprises a first filtering layer, a second filtering layer, a third filtering layer, a fourth filtering layer, an upper connecting groove, a lower connecting groove and a laminated board, push pedal cylinder and collecting box, connect the groove and set up side by side with lower groove on handling the incasement wall, first filter layer, the second filter layer, the lower extreme sets up side by side at last groove and connect the inslot under and on third filter layer and fourth filter layer, the pressfitting board with last groove cell wall pressfitting is installed to first filter layer and third filter layer up end, install on second filter layer and the fourth filter layer lower extreme face with connect the pressfitting board of groove pressfitting down, pressfitting board and push pedal cylinder all are provided with four groups, the output of push pedal cylinder all is connected with the pressfitting board, first filter layer, the second filter layer, the collecting box below third filter layer and the fourth filter layer communicates with the collecting box through the pipeline, first filter layer, the brush of laminating with adjacent filter layer is all provided with to second filter layer and third filter layer rear end.
The invention provides another technical scheme: the smelting method of the silicon micropowder high-temperature smelting equipment for the silicon cathode material of the lithium battery comprises the following steps:
the method comprises the following steps: the upper end of the material guide hopper is obliquely attached to the inner wall of the outer sleeve upper shell, so that the entering materials can be effectively ensured to fall into the smelting inner container, the temperature detector is used for detecting the temperature in the smelting inner container and feeding the temperature back to the temperature controller, and the temperature controller adjusts the temperature of the bottom heating ring and the cladding heating ring according to the requirement;
step two: the stirring motor drives the adjusting cylinder, the rotating rod and the stirring rod to rotate, and the stirring rod stirs the materials smelted in the smelting liner;
step three: the left telescopic cylinder and the right telescopic cylinder drive the outer sleeve shell to move upwards to leak the lower sleeve shell and the smelting inner container, so that the processed materials can be conveniently taken;
step four: the gas is conveyed into the heat exchange elbow pipe in the heat exchange cavity through the gas conveying pipe and exchanges heat with media in the heat exchange cavity, and the conveyed gas is filtered by the first filter layer, the second filter layer, the third filter layer and the fourth filter layer.
Further, aiming at the fourth step, the push plate cylinder drives the first filter layer, the second filter layer, the third filter layer and the fourth filter layer to move forwards respectively, the first filter layer, the third filter layer, the second filter layer and the fourth filter layer move directly in a staggered mode, and the brush cleans the filter layer surface behind the first filter layer, the third filter layer, the second filter layer and the fourth filter layer when moving.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the high-temperature smelting equipment and the high-temperature smelting method for the silicon micro powder for the silicon cathode material of the lithium battery, the temperature controller is electrically connected with the temperature detector, the temperature detector is arranged in the smelting inner container and used for detecting the temperature in the smelting inner container and feeding the temperature back to the temperature controller, the temperature controller adjusts the temperature of the bottom heating ring and the cladding heating ring according to needs, the smelting temperature can be accurately controlled according to needs, the smelting efficiency and the smelting quality of the silicon micro powder are improved, the inclined end of the upper end of the material guide hopper is attached to the inner wall of the upper shell of the outer sleeve, the entering material is effectively guaranteed to effectively fall into the smelting inner container, and the material waste is prevented.
2. The invention provides a high-temperature smelting device and a high-temperature smelting method for silicon micropowder used for a silicon cathode material of a lithium battery.
3. According to the high-temperature silicon powder smelting equipment and the high-temperature silicon powder smelting method for the silicon cathode material of the lithium battery, the stirring motor drives the adjusting cylinder, the rotating rod and the stirring rod to rotate, the stirring rod stirs materials smelted in the smelting inner container, the heating uniformity of the materials in the smelting process is improved, the adjusting cylinder can drive the rotating rod and the stirring rod to contract, the contraction is facilitated during material taking, and the influence on material taking is avoided.
4. According to the high-temperature silicon powder smelting equipment and the high-temperature silicon powder smelting method for the silicon negative electrode material of the lithium battery, the heat exchange elbow is arranged in the heat exchange cavity, one end of the heat exchange elbow is connected with the gas conveying pipe, the other end of the heat exchange elbow is communicated with the other space of the treatment box, the filter assembly is arranged in the treatment box behind the heat exchange cavity, gas is conveyed into the heat exchange elbow in the heat exchange cavity through the gas conveying pipe and exchanges heat with media in the heat exchange cavity, the heat of the gas is effectively utilized, the resource utilization efficiency is improved, the heat energy is effectively utilized, and the energy-saving efficiency is improved.
5. The invention provides silicon micropowder high-temperature smelting equipment for a lithium battery silicon cathode material and a method thereof.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the melting assembly of the present invention;
FIG. 3 is a schematic view of the heating assembly of the present invention;
FIG. 4 is a schematic structural diagram of the sealing device of the present invention;
FIG. 5 is a schematic structural view of a stirring device according to the present invention;
FIG. 6 is a schematic view of the gas processing apparatus of the present invention;
FIG. 7 is a cross-sectional view of a gas processing apparatus according to the present invention;
FIG. 8 is a cross-sectional view of a filter assembly cleaning configuration of the present invention.
In the figure: 1. a supporting seat; 11. a pillar; 2. a smelting assembly; 21. sleeving the outer shell; 22. a lower connecting casing; 23. smelting the inner container; 231. a material guide hopper; 24. a heating assembly; 241. a bottom heating ring; 242. coating a heating ring; 243. a connecting rod; 244. a temperature detector; 245. a temperature controller; 3. sealing the opening and closing device; 31. a left telescopic cylinder; 32. a right telescopic cylinder; 33. a telescopic rod; 34. a side joint plate; 35. sealing the press-fit member; 351. an outer sleeve seat; 352. a plugging groove; 353. a gasket; 4. a stirring device; 41. a stirring motor; 42. adjusting the cylinder; 43. a rotating rod; 44. a stirring rod; 5. a gas processing device; 51. a gas delivery pipe; 52. a support plate; 53. a treatment tank; 54. a heat exchange cavity; 55. a heat exchange elbow; 56. a filter assembly; 561. a first filter layer; 5611. a brush; 562. a second filter layer; 563. a third filter layer; 564. a fourth filter layer; 565. an upper connecting groove; 566. a lower connecting groove; 567. pressing the plywood; 568. a push plate cylinder; 569. and a collection box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the high-temperature silicon powder smelting equipment for the lithium battery silicon cathode material comprises a supporting seat 1, a supporting column 11 is arranged below the supporting seat 1, a smelting component 2 is arranged above the supporting seat 1, a sealing opening and closing device 3 is arranged on the outer side of the smelting component 2, a stirring device 4 is arranged above the smelting component 2, and a gas treatment device 5 is arranged at the side end of the smelting component 2.
Referring to fig. 2-3, the melting assembly 2 includes an outer casing 21, a lower casing 22, a melting inner container 23 and a heating assembly 24, the lower casing 22 is disposed inside the outer casing 21, the melting inner container 23 is disposed inside the lower casing 22, a material guiding hopper 231 is disposed above the melting inner container 23, the heating assembly 24 is disposed between the lower casing 22 and the melting inner container 23, the heating assembly 24 includes a bottom heating ring 241, a cladding heating ring 242, a connecting rod 243, a temperature measuring meter 244 and a temperature controller 245, the bottom heating ring 241 is disposed on the lower casing 22 and the bottom end surface of the melting inner container 23, the outer side of the melting inner container 23 is covered with a plurality of groups of cladding heating rings 242, the bottom heating ring 241 and the cladding heating ring 242 are connected by the connecting rod 243, the bottom heating ring 241 and the cladding heating ring 242 are electrically connected to the temperature controller 245, the temperature controller 245 is electrically connected to the temperature measuring meter 244, the setting of thermodetector 244 is in smelting inner bag 23, thermodetector 244 is used for detecting the temperature in smelting inner bag 23, give temperature controller 245 with the temperature feedback, temperature controller 245 carries out temperature adjustment to end heating ring 241 and cladding heating ring 242 as required, can be as required, the temperature is smelted in accurate control, efficiency and quality are smelted to the improvement silica powder, guide fill 231 upper end oblique shape end and the laminating of overcoat epitheca 21 inner wall, effectively guarantee that the material that gets into effectively falls to in smelting inner bag 23, prevent that the material is extravagant.
Referring to fig. 4, the sealing opening and closing device 3 includes a left telescopic cylinder 31, a right telescopic cylinder 32, a telescopic rod 33, a side connection plate 34 and a sealing pressing member 35, the left telescopic cylinder 31 and the right telescopic cylinder 32 are respectively installed on the support seats 1 at both sides of the smelting component 2, the output ends of the left telescopic cylinder 31 and the right telescopic cylinder 32 are respectively connected with the telescopic rod 33, two sets of side connection plates 34 are provided and respectively fixed at both ends of the outer side of the smelting component 2, the top ends of the telescopic rods 33 of the left telescopic cylinder 31 and the right telescopic cylinder 32 are respectively connected with the two sets of side connection plates 34, the sealing pressing member 35 is provided between the outer walls of the left telescopic cylinder 31 and the right telescopic cylinder 32 and the smelting component 2, the sealing pressing member 35 includes an outer sleeve seat 351, an insertion groove 352 and a sealing gasket 353, the outer sleeve seat 351 is fixed at the outer side of the smelting component 2, the outer sleeve seat 351 is provided with the insertion groove 352, the sealing gasket 353 is fixed at the lower end face of the outer side of the smelting component 2, smelt terminal surface under the subassembly 2 outside and be connected through sealed 353 and insert groove 352 pressfitting, left telescopic cylinder 31 and right telescopic cylinder 32 drive outer cover upper shell 21 and move up, will connect lower casing shell 22 and smelt inner bag 23 and spill, be convenient for get the material after processing, add man-hour as needs, left telescopic cylinder 31 and the shrink of right telescopic cylinder 32, it pushes down to drive outer cover upper shell 21, it seals in inserting groove 352 with outer cover upper shell 21 low terminal surface and sealed 353 pressfitting setting, guarantee outer cover upper shell 21 and lower casing shell 22 and add the junction leakproofness of man-hour, prevent to add the inside gas leakage of man-hour, improve whole environmental protection efficiency.
Referring to fig. 5, the stirring device 4 includes a stirring motor 41, an adjusting cylinder 42, a rotating rod 43 and a stirring rod 44, an output end of the stirring motor 41 is connected to the adjusting cylinder 42, an output end of the adjusting cylinder 42 is connected to the rotating rod 43, a plurality of groups of stirring rods 44 are installed on the rotating rod 43, the stirring motor 41 drives the adjusting cylinder 42, the rotating rod 43 and the stirring rod 44 to rotate, the stirring rod 44 stirs the material melted in the melting inner container 23, the uniformity of the heated material in the melting process is improved, and the adjusting cylinder 42 can drive the rotating rod 43 and the stirring rod 44 to contract, so that the material is conveniently contracted when being taken, and the influence on taking the material is avoided.
Referring to fig. 6-7, the gas treatment device 5 includes a gas pipe 51, a support plate 52, a treatment tank 53, a heat exchange cavity 54, a heat exchange elbow 55 and a filter assembly 56, the gas pipe 51 is disposed at the front end of the treatment tank 53, the treatment tank 53 is divided into two spaces by a partition plate, the treatment tank 53 on one side of the partition plate is provided with the heat exchange cavity 54, the heat exchange elbow 55 is disposed in the heat exchange cavity 54, one end of the heat exchange elbow 55 is connected with the gas pipe 51, the other end of the heat exchange elbow 55 is communicated with the other space of the treatment tank 53, the treatment tank 53 behind the heat exchange cavity 54 is provided with the filter assembly 56, and the gas is conveyed into the heat exchange elbow 55 in the heat exchange cavity 54 through the gas pipe 51 to exchange heat with the medium in the heat exchange cavity 54, so as to effectively utilize the heat of the gas, improve the utilization efficiency of resources, effectively utilize the heat energy, and improve the energy-saving efficiency.
Referring to FIG. 8, the filter assembly 56 includes a first filter layer 561, a second filter layer 562, a third filter layer 563, a fourth filter layer 564, an upper connecting groove 565, a lower connecting groove 566, a press plate 567, a push plate cylinder 568 and a collection box 569, the upper connecting groove 565 and the lower connecting groove 566 are arranged side by side on the inner wall of the treatment box 53, the upper and lower ends of the first filter layer 561, the second filter layer 562, the third filter layer 563 and the fourth filter layer 564 are arranged side by side in the upper connecting groove 565 and the lower connecting groove 566, the upper end surfaces of the first filter layer 561 and the third filter layer 563 are provided with the press plate 567 press-fitted with the upper connecting groove 565, the lower end surfaces of the second filter layer 562 and the fourth filter layer 564 are provided with the press plate 567 press-fitted with the lower connecting groove 566, the press plate 567 and the push plate cylinder 568 are provided with four sets of communication, the output end of the push plate cylinder 568 is connected with the press plate 567, the first filter layer 561, the second filter layer 562, the third filter layer 56563 and the collection box are connected with the fourth filter layer 564 through a pipe and the collection box 569, first filter layer 561, second filter layer 562 and third filter layer 563 rear end all are provided with the brush 5611 with the laminating of adjacent filter layer, first filter layer 561, the second filter layer 562, the gas of third filter layer 563 and fourth filter layer 564 filter the transport, effectively filter the harmful impurity in the gas, guarantee gaseous emission quality, avoid gaseous direct discharge contaminated air, improve the environmental protection efficiency, secondly, push pedal cylinder 568 drives first filter layer 561 respectively, second filter layer 562, third filter layer 563 and fourth filter layer 564 move forward, first filter layer 561, third filter layer 563 and second filter layer 562, the direct crisscross removal of fourth filter layer 564, brush 5611 clears up the filter aspect in back when moving, prevent that impurity from blockking up the filter layer, impurity after the clearance drops and collects in collection box 569, improve cleaning efficiency.
In order to better show that the smelting process of the silicon micropowder high-temperature smelting equipment for the silicon cathode material of the lithium battery can be realized, the embodiment provides a smelting method of the silicon micropowder high-temperature smelting equipment for the silicon cathode material of the lithium battery, which comprises the following steps:
the method comprises the following steps: the oblique end of the upper end of the material guide hopper 231 is attached to the inner wall of the outer sleeve upper shell 21, so that the entering materials can be effectively ensured to fall into the smelting inner container 23, the temperature detector 244 is used for detecting the temperature in the smelting inner container 23 and feeding the temperature back to the temperature controller 245, and the temperature controller 245 adjusts the temperature of the bottom heating ring 241 and the cladding heating ring 242 as required;
step two: the stirring motor 41 drives the adjusting cylinder 42, the rotating rod 43 and the stirring rod 44 to rotate, and the stirring rod 44 stirs the materials smelted in the smelting inner container 23;
step three: the left telescopic cylinder 31 and the right telescopic cylinder 32 drive the outer sleeve upper shell 21 to move upwards, so that the lower sleeve shell 22 and the smelting inner container 23 are leaked, and the processed materials can be conveniently taken;
step four: the gas is conveyed into the heat exchange elbow pipe 55 in the heat exchange cavity 54 through the gas conveying pipe 51 to exchange heat with the medium in the heat exchange cavity 54, and the conveyed gas is filtered by the first filtering layer 561, the second filtering layer 562, the third filtering layer 563 and the fourth filtering layer 564.
Further, for step four, the push plate cylinder 568 drives the first filter layer 561, the second filter layer 562, the third filter layer 563 and the fourth filter layer 564 to move forward, the first filter layer 561, the third filter layer 563, the second filter layer 562 and the fourth filter layer 564 directly move in a staggered manner, and the brush 5611 cleans the subsequent filter layer surface during movement.
In summary, the high-temperature melting equipment and the method for silicon micropowder used for the silicon cathode material of the lithium battery provided by the invention have the advantages that the temperature controller 245 is electrically connected with the temperature detector 244, the temperature detector 244 is arranged in the melting inner container 23, the temperature detector 244 is used for detecting the temperature in the melting inner container 23 and feeding the temperature back to the temperature controller 245, the temperature controller 245 adjusts the temperature of the bottom heating ring 241 and the cladding heating ring 242 as required, the melting temperature can be accurately controlled as required, the melting efficiency and the quality of the silicon micropowder are improved, the inclined end at the upper end of the material guide hopper 231 is attached to the inner wall of the outer sleeve upper shell 21, the entering materials are effectively ensured to fall into the melting inner container 23, the waste of the materials is prevented, the lower end surface at the outer side of the melting assembly 2 is connected with the insertion groove 352 in a pressing manner through the sealing gasket 353, the left telescopic cylinder 31 and the right telescopic cylinder 32 drive the outer sleeve upper shell 21 to move upwards to melt the lower sleeve shell 22 and the inner container 23, the material taking is convenient, when the material needs to be processed, the left telescopic cylinder 31 and the right telescopic cylinder 32 contract to drive the outer sleeve upper shell 21 to press downwards, the lower end surface of the outer sleeve upper shell 21 and the sealing gasket 353 are arranged in the inserting groove 352 in a pressing and sealing mode to seal, the sealing performance of the joint of the outer sleeve upper shell 21 and the lower connecting sleeve shell 22 during the processing is ensured, the internal gas leakage during the processing is prevented, the whole environment-friendly efficiency is improved, the stirring motor 41 drives the adjusting cylinder 42, the rotating rod 43 and the stirring rod 44 to rotate, the stirring rod 44 stirs the material smelted in the smelting inner container 23, the heating uniformity of the material during the smelting process is improved, the adjusting cylinder 42 can drive the rotating rod 43 and the stirring rod 44 to contract, the material taking is convenient to contract during the material taking, the material taking is prevented from being influenced, a heat exchange elbow 55 is arranged in the heat exchange cavity, one end of the heat exchange elbow 55 is connected with the air pipe 51, and the other end of the heat exchange elbow 55 is communicated with the other space of the processing box 53, a filtering component 56 is arranged in a processing box 53 behind the heat exchange cavity 54, gas is conveyed into a heat exchange elbow pipe 55 in the heat exchange cavity 54 through a gas conveying pipe 51 to exchange heat with media in the heat exchange cavity 54, so that the heat of the gas is effectively utilized, the resource utilization efficiency is improved, heat energy is effectively utilized, the energy-saving efficiency is improved, a first filtering layer 561, a second filtering layer 562, a third filtering layer 563 and a fourth filtering layer 564 are used for filtering the conveyed gas, harmful impurities in the gas are effectively filtered, the gas emission quality is ensured, the gas is prevented from directly discharging polluted air, the environmental protection efficiency is improved, secondly, a push plate cylinder 568 drives the first filtering layer 561, the second filtering layer 562, the third filtering layer 563 and the fourth filtering layer 564 to move forwards respectively, the first filtering layer 561, the third filtering layer 563, the second filtering layer 562 and the fourth filtering layer 564 move in a direct and staggered mode, and a brush 5611 cleans the subsequent filtering layer surface when moving, prevent that impurity from blockking up the filtering layer, impurity after the clearance drops and collects in collection case 569, improves cleaning efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. Lithium cell silicon negative electrode material uses silica powder high temperature melting equipment, its characterized in that: including supporting seat (1), the below of supporting seat (1) is provided with pillar (11), the top of supporting seat (1) is installed and is smelted subassembly (2), and the outside of smelting subassembly (2) is provided with sealed device (3) that opens and shuts, and the top of smelting subassembly (2) is provided with agitating unit (4), and the side of smelting subassembly (2) is provided with gas treatment device (5).
2. The silicon micropowder high-temperature smelting equipment for the silicon negative electrode material of the lithium battery as claimed in claim 1, which is characterized in that: smelt subassembly (2) including overcoat epitheca (21), down link cover shell (22), smelt inner bag (23) and heating element (24), the below endotheca of overcoat epitheca (21) is provided with down link cover shell (22), the inside of lower link cover shell (22) is provided with smelts inner bag (23), the top of smelting inner bag (23) is provided with guide fill (231), down link cover shell (22) and smelt and be provided with heating element (24) between inner bag (23).
3. The silicon micropowder high-temperature smelting equipment for the silicon negative electrode material of the lithium battery as claimed in claim 2, which is characterized in that: the heating assembly (24) comprises a bottom heating ring (241), a cladding heating ring (242), a connecting rod (243), a temperature detector (244) and a temperature controller (245), wherein the bottom heating ring (241) is arranged on the bottom end face of a lower connecting casing (22) and a smelting inner container (23), a plurality of groups of cladding heating rings (242) are sleeved and arranged on the outer side of the smelting inner container (23), the bottom heating ring (241) and the cladding heating ring (242) are connected through the connecting rod (243), the bottom heating ring (241) and the cladding heating ring (242) are electrically connected with the temperature controller (245), the temperature controller (245) is electrically connected with the temperature detector (244), and the temperature detector (244) is arranged in the smelting inner container (23).
4. The silicon micropowder high-temperature smelting equipment for the silicon negative electrode material of the lithium battery as claimed in claim 1, which is characterized in that: sealed device (3) that opens and shuts includes left telescopic cylinder (31), right telescopic cylinder (32), telescopic link (33), side fishplate bar (34) and sealed pressfitting spare (35), install respectively on smelting supporting seat (1) of subassembly (2) both sides left telescopic cylinder (31) and right telescopic cylinder (32), left side telescopic cylinder (31) and right telescopic cylinder (32) output all are connected with telescopic link (33), side fishplate bar (34) set up two sets ofly, fix respectively at smelting subassembly (2) outside both ends, the top of the telescopic link (33) of left side telescopic cylinder (31) and right telescopic cylinder (32) is connected with two sets of side fishplate bars (34) respectively, the outer wall of left side telescopic cylinder (31) and right telescopic cylinder (32) and smelting be provided with sealed pressfitting spare (35) between subassembly (2).
5. The silicon micropowder high-temperature smelting equipment for the silicon negative electrode material of the lithium battery as claimed in claim 4, which is characterized in that: the sealing pressing piece (35) comprises an outer sleeve seat (351), an inserting groove (352) and a sealing gasket (353), the outer sleeve seat (351) is fixed on the outer side of the smelting component (2), the inserting groove (352) is formed in the outer sleeve seat (351), the sealing gasket (353) is fixed on the lower end face of the outer side of the smelting component (2), and the lower end face of the outer side of the smelting component (2) is in pressing connection with the inserting groove (352) through the sealing gasket (353).
6. The silicon micropowder high-temperature smelting equipment for the silicon negative electrode material of the lithium battery as claimed in claim 1, which is characterized in that: agitating unit (4) include agitator motor (41), adjustment cylinder (42), bull stick (43) and puddler (44), and the output and the adjustment cylinder (42) of agitator motor (41) are connected, and the output and the bull stick (43) of adjustment cylinder (42) are connected, install multiunit puddler (44) on bull stick (43).
7. The silicon micropowder high-temperature smelting equipment for the silicon negative electrode material of the lithium battery as claimed in claim 1, which is characterized in that: the gas treatment device (5) comprises a gas conveying pipe (51), a support plate (52), a treatment box (53), a heat exchange cavity (54), a heat exchange bent pipe (55) and a filtering assembly (56), wherein the gas conveying pipe (51) is arranged at the front end of the treatment box (53), a partition plate is arranged inside the treatment box (53) to separate the treatment box into two spaces, the heat exchange cavity (54) is arranged inside the treatment box (53) on one side of the partition plate, the heat exchange bent pipe (55) is arranged in the heat exchange cavity (54), one end of the heat exchange bent pipe (55) is connected with the gas conveying pipe (51), the other end of the heat exchange bent pipe (55) is communicated with the other space of the treatment box (53), and the filtering assembly (56) is arranged in the treatment box (53) behind the heat exchange cavity (54).
8. The silicon micropowder high-temperature smelting equipment for the silicon negative electrode material of the lithium battery as claimed in claim 7, which is characterized in that: the filtering component (56) comprises a first filtering layer (561), a second filtering layer (562), a third filtering layer (563), a fourth filtering layer (564), an upper connecting groove (565), a lower connecting groove (566), a laminated plate (567), a push plate cylinder (568) and a collecting box (569), wherein the upper connecting groove (565) and the lower connecting groove (566) are arranged on the inner wall of the treating box (53) side by side, the upper ends and the lower ends of the first filtering layer (561), the second filtering layer (562), the third filtering layer (563) and the fourth filtering layer (564) are arranged in the upper connecting groove (565) and the lower connecting groove (566) side by side, the upper end faces of the first filtering layer (561) and the third filtering layer (563) are provided with the laminated plate (567) pressed with the groove wall of the upper connecting groove (565), the lower end faces of the second filtering layer (562) and the fourth filtering layer (564) are provided with the laminated plate (567) pressed with the lower connecting groove (566), and the four groups of push plates (568) are arranged on the laminated plate (567), the output end of the push plate cylinder (568) is connected with the laminated board (567), the collecting boxes (569) below the first filtering layer (561), the second filtering layer (562), the third filtering layer (563) and the fourth filtering layer (564) are communicated with the collecting box (569) through a pipeline, and the rear ends of the first filtering layer (561), the second filtering layer (562) and the third filtering layer (563) are provided with brushes (5611) attached to the adjacent filtering layers.
9. A smelting method of the silicon micropowder high-temperature smelting equipment for the silicon negative electrode material of the lithium battery as set forth in any one of claims 1 to 8, characterized by comprising the steps of: the method comprises the following steps:
the method comprises the following steps: the upper end of the material guide hopper (231) is obliquely attached to the inner wall of the outer sleeve upper shell (21), so that the entering materials can effectively fall into the smelting inner container (23), the temperature detector (244) is used for detecting the temperature in the smelting inner container (23) and feeding the temperature back to the temperature controller (245), and the temperature controller (245) adjusts the temperature of the bottom heating ring (241) and the coating heating ring (242) according to needs;
step two: the stirring motor (41) drives the adjusting cylinder (42), the rotating rod (43) and the stirring rod (44) to rotate, and the stirring rod (44) stirs the materials smelted in the smelting inner container (23);
step three: the left telescopic cylinder (31) and the right telescopic cylinder (32) drive the outer sleeve upper shell (21) to move upwards to leak the lower sleeve shell (22) and the smelting inner container (23), so that the processed materials can be conveniently taken;
step four: the gas is conveyed into the heat exchange elbow pipe (55) in the heat exchange cavity (54) through the gas conveying pipe (51) to exchange heat with media in the heat exchange cavity (54), and the conveyed gas is filtered by the first filter layer (561), the second filter layer (562), the third filter layer (563) and the fourth filter layer (564).
10. The smelting method of the silicon micropowder high-temperature smelting equipment for the silicon negative electrode material of the lithium battery as claimed in claim 9, which is characterized in that: aiming at the fourth step, the push plate cylinder (568) drives the first filter layer (561), the second filter layer (562), the third filter layer (563) and the fourth filter layer (564) to move forwards respectively, the first filter layer (561), the third filter layer (563), the second filter layer (562) and the fourth filter layer (564) directly move in a staggered mode, and the brush (5611) cleans the filter layer face behind when moving.
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Application publication date: 20220607 |