CN111205092B - Method and device for manufacturing one-step formed graphite crucible - Google Patents
Method and device for manufacturing one-step formed graphite crucible Download PDFInfo
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- CN111205092B CN111205092B CN202010069235.1A CN202010069235A CN111205092B CN 111205092 B CN111205092 B CN 111205092B CN 202010069235 A CN202010069235 A CN 202010069235A CN 111205092 B CN111205092 B CN 111205092B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/522—Graphite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
- C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
Abstract
The invention provides a method and a device for manufacturing a one-time molded graphite crucible, which relate to the technical field of graphite and are characterized in that a first ratio of graphite powder to medium-temperature coal pitch is obtained; judging whether the first ratio meets a first preset condition or not; when the first proportion meets a first preset condition, obtaining first kneading condition information of the graphite powder and the medium-temperature coal pitch; determining a first kneaded paste according to the first kneading condition information; obtaining a first molding pressure of the first kneaded paste; determining a first green compact press from the first forming pressure; the first pressing green body is roasted to obtain the one-time forming graphite crucible according to the first roasting temperature obtained by the first pressing green body, so that the technical effects of producing a high-quality graphite crucible, having good thermal shock resistance, ablation resistance and leakage resistance and high mechanical strength, and meeting the requirements of the lithium battery cathode material purification and smelting industry are achieved.
Description
Technical Field
The invention relates to the technical field of graphite, in particular to a method and a device for manufacturing a one-time molded graphite crucible.
Background
The main raw material of the graphite crucible is crystalline natural graphite, and various original physical and chemical properties of the natural graphite are maintained. The graphite crucible has good thermal conductivity and high temperature resistance, and has small thermal expansion coefficient and certain strain resistance to rapid heating and rapid cooling in the high-temperature use process. Has strong corrosion resistance to acid and alkaline solutions and excellent chemical stability. In the industrial departments of metallurgy, casting, machinery, chemical engineering and the like, the smelting method is widely used for smelting alloy tool steel and smelting non-ferrous metals and alloys thereof, and has better technical and economic effects. At present, the domestic graphite crucible production process has two types: plastic forming production process and cold isostatic pressing production process. The plastic forming process using clay as a binder has long production period, high labor intensity, low work efficiency, and great pollution caused by burning with coal, but the process is mostly adopted in China due to low investment; the isostatic pressing equipment adopts clean energy natural gas for sintering, so that the pollution problem is fundamentally solved, the production procedures are reduced by nearly 10 times, the period is short, and the work efficiency is high.
However, the applicant of the present invention finds that the prior art has at least the following technical problems:
in the prior art, when the crucible is produced by processing graphite electrode waste materials, the recovery rate of the electrode is low, the quality of the crucible is unstable, and the crucible cannot meet the requirement of precious metal smelting.
Disclosure of Invention
The embodiment of the invention provides a method and a device for manufacturing a one-time molded graphite crucible, solves the technical problems that when graphite electrode waste is adopted for processing and producing the crucible in the prior art, the recovery rate of an electrode is low, the quality of the crucible is unstable, and the crucible cannot meet the requirements of precious metal smelting, realizes the production of a high-quality graphite crucible, has good thermal shock resistance, ablation resistance and leakage resistance, has high mechanical strength, and can meet the technical effects of purification of a lithium battery cathode material and the requirements of the smelting industry.
In view of the above problems, embodiments of the present application are proposed to provide a method and an apparatus for manufacturing a single-shot graphite crucible.
In a first aspect, the present invention provides a method for manufacturing a one-time-formed graphite crucible, the method comprising: obtaining a first ratio of graphite powder to medium-temperature coal pitch; judging whether the first ratio meets a first preset condition or not; when the first proportion meets a first preset condition, obtaining first kneading condition information of the graphite powder and the medium-temperature coal pitch; determining a first kneaded paste according to the first kneading condition information; obtaining a first molding pressure of the first kneaded paste; determining a first green compact press from the first forming pressure; and obtaining a first roasting temperature according to the first pressed green body, and roasting the first pressed green body to obtain the one-time molded graphite crucible.
Preferably, the mass percentage of the graphite powder in the first preset condition is 72-88%.
Preferably, the mass percentage of the medium-temperature coal pitch in the first preset condition is 12-28%.
Preferably, the determining a first kneaded paste according to the first kneading condition information includes:
obtaining a first dry blending temperature; determining first dry mixing time of the graphite powder and the medium-temperature coal pitch according to the first dry mixing temperature; determining a first powder mixture after the first dry mixing time is over; obtaining a first wet mixing temperature; determining a first wet mixing time for the first powder mixture based on the first wet mixing temperature; determining a first kneaded paste according to the first wet mixing temperature and the first wet mixing time.
Preferably, said determining a first kneaded paste according to said first wet mixing temperature and said first wet mixing time comprises:
obtaining a first kneading pressure; the first kneading pressure is applied according to the first wet mixing time, and a first kneaded paste is determined according to a first wet mixing temperature.
Preferably, the obtaining of the first roasting temperature according to the first green press, and the roasting of the first green press to obtain the one-time-forming graphite crucible comprises:
obtaining a first temperature rise rate of the first green compact press; determining a second temperature rise rate according to the first temperature rise rate; determining the first roasting temperature and first heat preservation time according to the first temperature rise rate and the second temperature rise rate; and roasting the first pressed green body according to a first roasting temperature for the first heat preservation time to obtain the one-time molded graphite crucible.
In a second aspect, the present invention provides an apparatus for manufacturing a graphite crucible formed at one time, the apparatus comprising:
the first obtaining unit is used for obtaining a first ratio of graphite powder to medium-temperature coal pitch;
the first judging unit is used for judging whether the first ratio meets a first preset condition or not;
a second obtaining unit, configured to obtain first kneading condition information of the graphite powder and the medium-temperature coal pitch when the first ratio meets a first preset condition;
a first determination unit configured to determine a first kneaded paste according to the first kneading condition information;
a third obtaining unit for obtaining a first molding pressure of the first kneaded paste;
a second determination unit for determining a first green compact press from the first molding pressure;
and the first operation unit is used for obtaining a first roasting temperature according to the first pressed green body and roasting the first pressed green body to obtain the one-time molded graphite crucible.
Preferably, the mass percentage of the graphite powder in the first preset condition in the first judgment unit is 72-88%.
Preferably, the mass percentage of the medium-temperature coal tar pitch in the first preset condition in the first judgment unit is 12% to 28%.
Preferably, the determining, in the first determining unit, the first kneaded paste according to the first kneading condition information includes:
a fourth obtaining unit for obtaining the first dry blending temperature;
a third determining unit, configured to determine a first dry mixing time of the graphite powder and the medium-temperature coal pitch according to the first dry mixing temperature;
a fourth determination unit for determining the first powder mixture after the first dry-blending time is over;
a fifth obtaining unit for obtaining a first wet mixing temperature;
a fifth determining unit for determining a first wet-mixing time of the first powder mixture according to the first wet-mixing temperature;
a sixth determining unit for determining the first kneaded paste according to the first wet mixing temperature and the first wet mixing time.
Preferably, the determining of the first kneaded paste according to the first wet mixing temperature and the first wet mixing time in the sixth determining unit includes:
a sixth obtaining unit for obtaining the first kneading pressure;
a seventh determining unit for applying the first kneading pressure according to the first wet mixing time and determining the first kneaded paste according to a first wet mixing temperature.
Preferably, the first operation unit obtains a first roasting temperature according to the first green compact, and the first green compact is roasted to obtain the one-time-formed graphite crucible, and the method comprises the following steps:
a seventh obtaining unit for obtaining a first temperature rise rate of the first green compact press;
an eighth determining unit configured to determine a second temperature rise rate according to the first temperature rise rate;
a ninth determining unit, configured to determine the first baking temperature and the first heat preservation time according to the first temperature rise rate and the second temperature rise rate;
and the eighth obtaining unit is used for roasting the first pressed green body according to the first roasting temperature for the first heat preservation time to obtain the one-time molded graphite crucible.
In a third aspect, the present invention provides an apparatus for manufacturing a single-use formed graphite crucible, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of any one of the above methods when executing the program.
In a fourth aspect, the invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of any of the methods described above.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
according to the manufacturing method and device of the one-time molding graphite crucible provided by the embodiment of the invention, the first ratio of graphite powder to medium-temperature coal pitch is obtained; judging whether the first ratio meets a first preset condition or not; when the first proportion meets a first preset condition, obtaining first kneading condition information of the graphite powder and the medium-temperature coal pitch; determining a first kneaded paste according to the first kneading condition information; obtaining a first molding pressure of the first kneaded paste; determining a first green compact press from the first forming pressure; the method has the advantages that the first pressing green body is roasted to obtain the one-time forming graphite crucible according to the first roasting temperature obtained by the first pressing green body, so that the technical problems that when graphite electrode waste is adopted to process and produce the crucible in the prior art, the recovery rate of an electrode is low, the quality of the crucible is unstable, and the use of precious metal smelting cannot be met are solved, the technical effects of producing a high-quality graphite crucible, having good thermal shock resistance, ablation resistance and leakage resistance and high mechanical strength, and meeting the requirements of the lithium battery cathode material purification and smelting industry are achieved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
FIG. 1 is a schematic flow chart of a method for manufacturing a single-step formed graphite crucible according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an apparatus for manufacturing a single-step formed graphite crucible according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of another apparatus for manufacturing a single-step formed graphite crucible according to an embodiment of the present invention.
Description of reference numerals: a first obtaining unit 11, a first judging unit 12, a second obtaining unit 13, a first determining unit 14, a third obtaining unit 15, a second determining unit 16, a first operating unit 17, a bus 300, a receiver 301, a processor 302, a transmitter 303, a memory 304, and a bus interface 306.
Detailed Description
The embodiment of the invention provides a method and a device for manufacturing a one-time molded graphite crucible, which are used for solving the technical problems that when graphite electrode waste is adopted to process and produce the crucible in the prior art, the recovery rate of electrodes is low, the quality of the crucible is unstable, and the smelting and use of precious metals cannot be met.
The technical scheme provided by the invention has the following general idea: obtaining a first ratio of graphite powder to medium-temperature coal pitch; judging whether the first ratio meets a first preset condition or not; when the first proportion meets a first preset condition, obtaining first kneading condition information of the graphite powder and the medium-temperature coal pitch; determining a first kneaded paste according to the first kneading condition information; obtaining a first molding pressure of the first kneaded paste; determining a first green compact press from the first forming pressure; and obtaining a first roasting temperature according to the first pressed green body, roasting the first pressed green body to obtain the one-step formed graphite crucible, so that the technical effects of producing a high-quality graphite crucible, having good thermal shock resistance, ablation resistance and leakage resistance and high mechanical strength, and meeting the requirements of the lithium battery cathode material purification and smelting industry are achieved.
The technical solutions of the present invention are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present invention are described in detail in the technical solutions of the present application, and are not limited to the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Example one
FIG. 1 is a schematic flow chart of a method for manufacturing a disposable graphite crucible according to an embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides a method for manufacturing a one-time-formed graphite crucible, the method including:
step 110: obtaining a first ratio of graphite powder to medium-temperature coal pitch.
Step 120: and judging whether the first ratio meets a first preset condition.
Further, the mass percentage of the graphite powder in the first preset condition is 72-88%. Further, the mass percentage of the medium-temperature coal pitch in the first preset condition is 12-28%.
Specifically, before the graphite powder and the medium-temperature coal pitch are matched, the graphite powder is subjected to size fraction matching, the passing rate of the selected graphite powder for sieving by using a 200-mesh international standard sieve is 80-90%, and the size fraction matching of the graphite powder is 2-4% of 1mm, 37-43% of 0.5-0.15 mm, 37-43% of 0.075mm and 17-23% of other particle sizes. And selecting the graphite powder and the medium-temperature coal pitch with proper grain size ratio to be matched, so as to obtain the first ratio of the graphite powder to the medium-temperature coal pitch. The first preset condition of setting the first ratio of the graphite powder to the medium-temperature coal pitch is that the mass percent of the graphite powder is 72-88% and the mass percent of the medium-temperature coal pitch is 12-28%. And judging whether the first ratio of the graphite powder to the medium-temperature coal pitch meets the quality content requirement of the graphite powder to the medium-temperature coal pitch in a first preset condition, wherein the first ratio of the graphite powder to the medium-temperature coal pitch plays a decisive role in thermal shock resistance, ablation resistance and leakage resistance of the product.
Step 130: when the first proportion meets a first preset condition, obtaining first kneading condition information of the graphite powder and the medium-temperature coal pitch;
step 140: and determining a first kneaded paste according to the first kneading condition information.
Further, the determining a first kneaded paste according to the first kneading condition information includes: obtaining a first dry blending temperature; determining first dry mixing time of the graphite powder and the medium-temperature coal pitch according to the first dry mixing temperature; determining a first powder mixture after the first dry mixing time is over; obtaining a first wet mixing temperature; determining a first wet mixing time for the first powder mixture based on the first wet mixing temperature; determining a first kneaded paste according to the first wet mixing temperature and the first wet mixing time.
Further, said determining a first kneaded paste as a function of said first wet mixing temperature and said first wet mixing time comprises: obtaining a first kneading pressure; the first kneading pressure is applied according to the first wet mixing time, and a first kneaded paste is determined according to a first wet mixing temperature.
Specifically, by comparing a first ratio of the graphite powder to the medium-temperature coal pitch with a first preset condition, when the first ratio meets the first preset condition, a first dry-mixing temperature and a first dry-mixing time of the graphite powder and the medium-temperature coal pitch in a kneading pot are obtained, for example, the first dry-mixing temperature is 125 ℃, and the first dry-mixing time is 40min, that is, the graphite powder and the medium-temperature coal pitch are mixed and stirred for 40min in the kneading pot at 125 ℃. The kneading pot is a device for uniformly stirring and mixing materials such as carbon, asphalt and the like in a semi-dry state by a strong shearing action generated by a pair of blades (usually in a Z shape) which are matched and rotate with each other. The temperature regulation mode of the kneading pot adopts the methods of jacket, steam, oil heating, water cooling and the like, and adopts hydraulic cylinder turning and cover opening. The discharging mode comprises hydraulic pressure, cylinder overturning and dumping, ball valve discharging, screw extrusion and the like. And determining a first powder mixture formed by the graphite powder and the medium-temperature coal pitch after the first dry mixing time is finished. Obtaining a first wet mixing temperature and a first wet mixing time of the first powder mixture, stirring the first powder mixture in a kneading pot at the first wet mixing temperature for the first wet mixing time, wherein the first wet mixing temperature is 170 ℃, the first wet mixing time is 42min, adding a proper amount of water and the like into the kneading pot, and stirring the water and the like with the first powder mixture to obtain a first kneaded paste.
Step 150: a first forming pressure of the first kneaded paste is obtained.
Step 160: a first green compact press is determined from the first forming pressure.
Specifically, after the kneading pot completes stirring the first kneaded paste, a first molding pressure at which the first kneaded paste is poured into the molding container, that is, a first molding pressure of the press machine is obtained. When the first molding pressure of the first kneaded paste is obtained, the first green compact can be determined. For example, a first kneaded paste material is poured into a molding container, a molding tamping pressure of a press is set to 20Mpa, a first molding pressure is set to 20Mpa, a first pressing time is set to 270S, and a binder such as a resin is added to the first kneaded paste material to press the first kneaded paste material into a first press green body, that is, a green body of a graphite crucible, so that curing is promoted, and the strength of the first press green body is improved.
Step 170: and obtaining a first roasting temperature according to the first pressed green body, and roasting the first pressed green body to obtain the one-time molded graphite crucible.
Further, the roasting of the first green press to obtain the one-time molded graphite crucible according to the first green press obtaining the first roasting temperature comprises: obtaining a first temperature rise rate of the first green compact press; determining a second temperature rise rate according to the first temperature rise rate; determining the first roasting temperature and first heat preservation time according to the first temperature rise rate and the second temperature rise rate; and roasting the first pressed green body according to a first roasting temperature for the first heat preservation time to obtain the one-time molded graphite crucible.
Specifically, when the press presses the first kneaded paste into a first pressed green body, a first baking temperature and a first holding time of the industrial ring-type baking furnace are required to be obtained, for example, the first baking temperature is 1200 ℃, and the first holding time is 20 hours. The first pressed green body is placed into an industrial ring-type roasting furnace, and a cover is added in the industrial ring-type roasting furnace, so that the interior of the furnace body of the whole roasting furnace is in a positive pressure state, the rapid escape of volatile gas is inhibited, the expansion and cracking probability of the product is greatly reduced, and the carbon residue rate of the product is improved. In order to raise the temperature of the industrial ring type roasting furnace to the first roasting temperature, the temperature of the industrial ring type roasting furnace needs to be raised to the first roasting temperature in different stages, so that the probability of cracks of the product is reduced, and the thermal shock resistance, the ablation property and the qualification rate are improved. First, a first temperature rise rate of the first green compact is obtained, i.e. a first temperature rise end temperature and a first temperature rise time are obtained. And determining a second temperature rise rate according to the first temperature rise rate, namely obtaining a second temperature rise final temperature and second temperature rise time, when the second temperature rise final temperature does not reach the first roasting temperature, continuously obtaining a third temperature rise rate until the temperature rise final temperature reaches the first roasting temperature, continuously keeping the temperature in an industrial annular roasting furnace for the first temperature preservation time to obtain a one-time molded graphite crucible, cooling the graphite crucible to room temperature, and cleaning the surface of the graphite crucible.
Therefore, by the manufacturing method of the one-time forming graphite crucible in the embodiment, after the graphite powder and the medium-temperature coal pitch are proportioned to reach the first preset condition, the graphite powder and the medium-temperature coal pitch are kneaded into the first kneaded paste according to the first kneading condition information, the first forming pressure of the press is determined to press the first kneaded paste into the first pressed green body, and the first roasting temperature of the industrial ring roasting furnace is determined to obtain the one-time forming graphite crucible, so that the production of the high-quality graphite crucible is achieved, the thermal shock resistance, the ablation resistance and the leak resistance are good, the mechanical strength is high, the requirements of the lithium battery cathode material in the purification and smelting industry can be met, the technical effect of high qualified rate of the graphite crucible is achieved, and the problems that when the crucible is processed and produced by using graphite electrode waste in the prior art, the recovery rate of the electrode is low, and the quality of the crucible is unstable are solved, can not meet the technical problem of smelting and using precious metals.
Furthermore, the data fusion method in this embodiment may also be implemented by combining an Artificial Intelligence technology, wherein Artificial Intelligence (AI) is also called machine Intelligence, which is a subject for researching a computer to simulate some thinking processes and intelligent behaviors (such as learning, reasoning, thinking, planning, and the like) of a human, and mainly includes a principle that the computer realizes Intelligence, and a computer similar to human brain Intelligence is manufactured, so that the computer can realize higher-level application. The method comprises the following specific steps: obtaining a picture of the graphite crucible; inputting the picture of the graphite crucible into a model, wherein the model is obtained by using a plurality of groups of data through machine learning training, and each group of data in the plurality of groups of data comprises: the system comprises a graphite crucible, first identification information for identifying a first ratio of graphite powder to medium-temperature coal pitch, first mixing and kneading condition information for identifying a mixing and kneading machine, and second identification information for identifying a first forming pressure of a press machine and a first roasting temperature of an industrial ring-type roasting furnace; acquiring output information of the model, wherein the output information is a one-time molded graphite crucible with high qualification rate; when the output information of the model reaches a first preset condition by using the first ratio of the graphite powder to the medium-temperature coal pitch in the first identification information, determining the disposable molding graphite crucible with high qualification rate by combining the first kneading condition information, the first molding pressure and the first roasting temperature of the kneader in the second identification information.
Further, the training model in this embodiment is obtained by using machine learning training with multiple sets of data, where machine learning is a way to implement artificial intelligence, and has a certain similarity with data mining, and is also a multi-domain cross subject, and relates to multiple subjects such as probability theory, statistics, approximation theory, convex analysis, and computation complexity theory. Compared with the method for finding mutual characteristics among big data by data mining, the machine learning focuses on the design of an algorithm, so that a computer can learn rules from the data in a whitish manner, and unknown data can be predicted by using the rules.
Example two
Based on the same inventive concept as the manufacturing method of the one-time forming graphite crucible in the previous embodiment, the present invention also provides a manufacturing method and apparatus of the one-time forming graphite crucible, as shown in fig. 2, the apparatus comprises:
a first obtaining unit 11, where the first obtaining unit 11 is configured to obtain a first ratio of graphite powder to medium-temperature coal pitch;
a first judging unit 12, where the first judging unit 12 is configured to judge whether the first ratio meets a first preset condition;
a second obtaining unit 13, where the second obtaining unit 13 is configured to obtain first kneading condition information of the graphite powder and the medium-temperature coal pitch when the first ratio meets a first preset condition;
a first determination unit 14, the first determination unit 14 being configured to determine a first kneaded paste according to the first kneading condition information;
a third obtaining unit 15 for obtaining a first molding pressure of the first kneaded paste by the third obtaining unit 15;
a second determination unit 16, the second determination unit 16 being configured to determine a first green compact press from the first molding pressure;
and the first operation unit 17 is used for obtaining a first roasting temperature according to the first pressed green body, and roasting the first pressed green body to obtain the one-time molded graphite crucible.
Further, the mass percentage of the graphite powder in the first preset condition in the first judgment unit is 72-88%.
Further, the mass percentage of the medium-temperature coal tar pitch in the first preset condition in the first judgment unit is 12% to 28%.
Further, the determining, in the first determining unit, the first kneaded paste according to the first kneading condition information includes:
a fourth obtaining unit for obtaining the first dry blending temperature;
a third determining unit, configured to determine a first dry mixing time of the graphite powder and the medium-temperature coal pitch according to the first dry mixing temperature;
a fourth determination unit for determining the first powder mixture after the first dry-blending time is over;
a fifth obtaining unit for obtaining a first wet mixing temperature;
a fifth determining unit for determining a first wet-mixing time of the first powder mixture according to the first wet-mixing temperature;
a sixth determining unit for determining the first kneaded paste according to the first wet mixing temperature and the first wet mixing time.
Further, the determining, in the sixth determining unit, a first kneaded paste according to the first wet mixing temperature and the first wet mixing time includes:
a sixth obtaining unit for obtaining the first kneading pressure;
a seventh determining unit for applying the first kneading pressure according to the first wet mixing time and determining the first kneaded paste according to a first wet mixing temperature.
Further, in the first operation unit, a first roasting temperature is obtained according to the first green compact, and the first green compact is roasted to obtain the one-time-formed graphite crucible, including:
a seventh obtaining unit for obtaining a first temperature rise rate of the first green compact press;
an eighth determining unit configured to determine a second temperature rise rate according to the first temperature rise rate;
a ninth determining unit, configured to determine the first baking temperature and the first heat preservation time according to the first temperature rise rate and the second temperature rise rate;
and the eighth obtaining unit is used for roasting the first pressed green body according to the first roasting temperature for the first heat preservation time to obtain the one-time molded graphite crucible.
Various modifications and embodiments of the method for manufacturing a disposable formed graphite crucible in the first embodiment of fig. 1 are also applicable to the apparatus for manufacturing a disposable formed graphite crucible of the present embodiment, and the method for manufacturing a disposable formed graphite crucible in the present embodiment is clear to those skilled in the art from the foregoing detailed description of the method for manufacturing a disposable formed graphite crucible, and therefore, for the sake of brevity of the description, will not be described in detail herein.
EXAMPLE III
Based on the same inventive concept as the method for manufacturing a single-use formed graphite crucible in the previous embodiment, the present invention further provides a manufacturing apparatus of a single-use formed graphite crucible, as shown in fig. 3, comprising a memory 304, a processor 302 and a computer program stored in the memory 304 and capable of running on the processor 302, wherein the processor 302 executes the program to realize the steps of any one of the methods for manufacturing a single-use formed graphite crucible.
Where in fig. 3 a bus architecture (represented by bus 300), bus 300 may include any number of interconnected buses and bridges, bus 300 linking together various circuits including one or more processors, represented by processor 302, and memory, represented by memory 304. The bus 300 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 306 provides an interface between the bus 300 and the receiver 301 and transmitter 303. The receiver 301 and the transmitter 303 may be the same element, i.e., a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 302 is responsible for managing the bus 300 and general processing, and the memory 304 may be used for storing data used by the processor 302 in performing operations.
Example four
Based on the same inventive concept as the manufacturing method of the one-time-forming graphite crucible in the foregoing embodiment, the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, realizes the steps of: obtaining a first ratio of graphite powder to medium-temperature coal pitch; judging whether the first ratio meets a first preset condition or not; when the first proportion meets a first preset condition, obtaining first kneading condition information of the graphite powder and the medium-temperature coal pitch; determining a first kneaded paste according to the first kneading condition information; obtaining a first molding pressure of the first kneaded paste; determining a first green compact press from the first forming pressure; and obtaining a first roasting temperature according to the first pressed green body, and roasting the first pressed green body to obtain the one-time molded graphite crucible.
In a specific implementation, when the program is executed by a processor, any method step in the first embodiment may be further implemented.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
according to the manufacturing method and device of the one-time molding graphite crucible provided by the embodiment of the invention, the first ratio of graphite powder to medium-temperature coal pitch is obtained; judging whether the first ratio meets a first preset condition or not; when the first proportion meets a first preset condition, obtaining first kneading condition information of the graphite powder and the medium-temperature coal pitch; determining a first kneaded paste according to the first kneading condition information; obtaining a first molding pressure of the first kneaded paste; determining a first green compact press from the first forming pressure; the method has the advantages that the first pressing green body is roasted to obtain the one-time forming graphite crucible according to the first roasting temperature obtained by the first pressing green body, so that the technical problems that when graphite electrode waste is adopted to process and produce the crucible in the prior art, the recovery rate of an electrode is low, the quality of the crucible is unstable, and the use of precious metal smelting cannot be met are solved, the technical effects of producing a high-quality graphite crucible, having good thermal shock resistance, ablation resistance and leakage resistance and high mechanical strength, and meeting the requirements of the lithium battery cathode material purification and smelting industry are achieved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A method for manufacturing a one-time-formed graphite crucible, comprising:
obtaining a first ratio of graphite powder to medium-temperature coal pitch;
judging whether the first ratio meets a first preset condition or not;
when the first proportion meets a first preset condition, obtaining first kneading condition information of the graphite powder and the medium-temperature coal pitch;
determining a first kneaded paste according to the first kneading condition information;
obtaining a first molding pressure of the first kneaded paste;
determining a first green compact press from the first forming pressure;
obtaining a first roasting temperature according to the first pressed green body, and roasting the first pressed green body to obtain a one-time molded graphite crucible;
wherein the determining a first kneaded paste according to the first kneading condition information includes:
obtaining a first dry blending temperature;
determining first dry mixing time of the graphite powder and the medium-temperature coal pitch according to the first dry mixing temperature;
determining a first powder mixture after the first dry mixing time is over;
obtaining a first wet mixing temperature;
determining a first wet mixing time for the first powder mixture based on the first wet mixing temperature;
determining a first kneaded paste according to the first wet mixing temperature and the first wet mixing time;
wherein said determining a first kneaded paste as a function of said first wet mixing temperature and said first wet mixing time comprises:
obtaining a first kneading pressure;
applying the first kneading pressure according to the first wet mixing time and determining a first kneaded paste according to a first wet mixing temperature;
wherein the method further comprises:
obtaining a picture of the graphite crucible;
inputting the picture of the graphite crucible into a model, wherein the model is obtained by using a plurality of groups of data through machine learning training, and each group of data in the plurality of groups of data comprises: the system comprises a graphite crucible, first identification information for identifying a first ratio of graphite powder to medium-temperature coal pitch, first mixing and kneading condition information for identifying a mixing and kneading machine, and second identification information for identifying a first forming pressure of a press machine and a first roasting temperature of an industrial ring-type roasting furnace;
acquiring output information of the model, wherein the output information is a one-time molded graphite crucible with high qualification rate; when the output information of the model reaches a first preset condition by using the first ratio of the graphite powder to the medium-temperature coal pitch in the first identification information, determining the disposable molding graphite crucible with high qualification rate by combining the first kneading condition information, the first molding pressure and the first roasting temperature of the kneader in the second identification information.
2. The method according to claim 1, wherein the graphite powder in the first predetermined condition is 72 to 88 mass%.
3. The method of claim 2, wherein the mass percentage of the medium-temperature coal pitch in the first preset condition is 12-28%.
4. The method of claim 1, wherein said obtaining a first firing temperature from said first green compact die, firing said first green compact die to obtain a one-shot graphite crucible, comprises:
obtaining a first temperature rise rate of the first green compact press;
determining a second temperature rise rate according to the first temperature rise rate;
determining the first roasting temperature and first heat preservation time according to the first temperature rise rate and the second temperature rise rate;
and roasting the first pressed green body according to a first roasting temperature for the first heat preservation time to obtain the one-time molded graphite crucible.
5. An apparatus for manufacturing a graphite crucible formed at one time, comprising:
the first obtaining unit is used for obtaining a first ratio of graphite powder to medium-temperature coal pitch;
the first judging unit is used for judging whether the first ratio meets a first preset condition or not;
a second obtaining unit, configured to obtain first kneading condition information of the graphite powder and the medium-temperature coal pitch when the first ratio meets a first preset condition;
a first determination unit configured to determine a first kneaded paste according to the first kneading condition information;
a third obtaining unit for obtaining a first molding pressure of the first kneaded paste;
a second determination unit for determining a first green compact press from the first molding pressure;
the first operation unit is used for obtaining a first roasting temperature according to the first pressed green body and roasting the first pressed green body to obtain a one-time molded graphite crucible;
a fourth obtaining unit for obtaining the first dry blending temperature;
a third determining unit, configured to determine a first dry mixing time of the graphite powder and the medium-temperature coal pitch according to the first dry mixing temperature;
a fourth determination unit for determining the first powder mixture after the first dry-blending time is over;
a fifth obtaining unit for obtaining a first wet mixing temperature;
a fifth determining unit for determining a first wet-mixing time of the first powder mixture according to the first wet-mixing temperature;
a sixth determining unit for determining the first kneaded paste according to the first wet mixing temperature and the first wet mixing time;
a sixth obtaining unit for obtaining the first kneading pressure; a seventh determining unit for applying the first kneading pressure according to the first wet mixing time and determining the first kneaded paste according to a first wet mixing temperature;
wherein the apparatus further comprises:
a ninth obtaining unit for obtaining a photograph of the graphite crucible;
a first input unit, configured to input a picture of the graphite crucible into a model, wherein the model is obtained by machine learning training using a plurality of sets of data, and each set of the plurality of sets of data includes: the system comprises a graphite crucible, first identification information for identifying a first ratio of graphite powder to medium-temperature coal pitch, first mixing and kneading condition information for identifying a mixing and kneading machine, and second identification information for identifying a first forming pressure of a press machine and a first roasting temperature of an industrial ring-type roasting furnace;
a tenth obtaining unit that obtains output information of the model, wherein the output information is a one-time-molded graphite crucible with a high yield; when the output information of the model reaches a first preset condition by using the first ratio of the graphite powder to the medium-temperature coal pitch in the first identification information, determining the disposable molding graphite crucible with high qualification rate by combining the first kneading condition information, the first molding pressure and the first roasting temperature of the kneader in the second identification information.
6. An apparatus for manufacturing a single-use formed graphite crucible, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to perform the steps of the method of any one of claims 1 to 4.
7. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
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