CN116822406A - Dynamic material flow analysis method for natural graphite resource metabolism - Google Patents
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- 229910021382 natural graphite Inorganic materials 0.000 title claims abstract description 220
- 239000000463 material Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000004060 metabolic process Effects 0.000 title claims abstract description 32
- 238000005206 flow analysis Methods 0.000 title claims abstract description 14
- 239000000047 product Substances 0.000 claims description 65
- 238000011084 recovery Methods 0.000 claims description 27
- 239000012467 final product Substances 0.000 claims description 23
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 23
- 239000011707 mineral Substances 0.000 claims description 23
- 239000007795 chemical reaction product Substances 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 19
- 238000004364 calculation method Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 13
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- 239000002699 waste material Substances 0.000 claims description 11
- 238000005065 mining Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 238000011835 investigation Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims 1
- 238000013480 data collection Methods 0.000 description 8
- 230000008676 import Effects 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention discloses a dynamic material flow analysis method for natural graphite resource metabolism, which comprises the following steps: s1, constructing a framework of a dynamic material flow system for natural graphite resource metabolism in a national level; s2, collecting material flow parameter data of each link of the natural graphite in the dynamic material flow system based on the frame in the step S1; s3, based on the material flow parameter data in the step S2, calculating the flow and the stock of the natural graphite in the dynamic material flow system; s4, calculating the stock data based on the flow in the step S3, and acquiring the dynamic evolution characteristics of the natural graphite resources. The method fills the technical blank of analyzing medium-and-long-term material flow and dynamic evolution rules of the natural graphite, reveals the dynamic evolution rules of the supply and demand conditions and the utilization efficiency of the natural graphite resources, and provides effective data support for establishing and perfecting a sustainable utilization system of the natural graphite resources in China.
Description
Technical Field
The invention relates to the technical field of data analysis, in particular to a dynamic material flow analysis method for natural graphite resource metabolism.
Background
A sustainable society is severely dependent on sustainable supplies of critical mineral resources because they limit the development of a national economic, national defense and strategic emerging industry. Natural graphite is considered to be one of the most critical and strategically significant minerals in the united states, the european union and china. In the conventional industry, natural graphite is mainly used for manufacturing refractory materials for steelmaking, conductive materials, friction materials, high-temperature lubricants, and the like. The clean energy transformation drives the energy storage application to be used as a rapid increase of supporting technology matching requirements of new energy vehicles and power grids, and natural graphite is used as one of the most widely used lithium ion battery cathode materials at present, and becomes an indispensable key mineral in the clean energy transformation.
However, the prior art lacks a method for quantitatively analyzing the metabolism of natural graphite resources from the full life cycle, and cannot accurately describe the circulation pattern of natural graphite in the links of ore exploitation, product production, product consumption and waste recovery and the dynamic evolution rule of the utilization efficiency and supply and demand conditions of the natural graphite resources, so that data support cannot be provided for establishing and perfecting a natural graphite resource sustainable utilization system in China.
Disclosure of Invention
In order to solve the problems in the background technology, the invention provides a dynamic material flow analysis method for natural graphite resource metabolism, which fills the technical blank of medium-long-term material flow and dynamic evolution rule analysis of natural graphite and provides important basis for the configuration strategy of natural graphite resources in the national level of China.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides a dynamic material flow analysis method for natural graphite resource metabolism, which comprises the following steps:
s1, constructing a framework of a dynamic material flow system for natural graphite resource metabolism in a national level;
s2, collecting material flow parameter data of each link of the natural graphite in the dynamic material flow system based on the frame in the step S1;
s3, based on the material flow parameter data in the step S2, calculating the flow and the stock of the natural graphite in the dynamic material flow system;
s4, calculating the stock data based on the flow in the step S3, and acquiring the dynamic evolution characteristics of the natural graphite resources.
Specifically, in the step S1, the dynamic material flow system for natural graphite resource metabolism at the national level includes five links, namely an ore mining and selecting link, a processing and manufacturing link, an international trade link, a product consumption link and a waste recovery link.
Specifically, the time range of the dynamic material flow system of the natural graphite resource metabolism of the national level is determined based on the operability of the data of each link.
Specifically, in the step S2, the material flow parameters of the ore mining and selecting link include natural graphite yield and natural graphite ore dressing recovery rate;
the material flow parameters of the processing and manufacturing links comprise loss rate in the processing process of the natural graphite final product;
the material flow parameters of the international trade link comprise the material quantity of the import quantity of the natural graphite mineral products and the final products, the material quantity of the export quantity of the natural graphite mineral products and the final products, and the graphite content in the natural graphite mineral products and the final products;
the material flow parameters of the product consumption link comprise the consumption of natural graphite, the proportion of the consumption of the natural graphite in each consumption department to the total consumption, the loss rate of the natural graphite end product in each consumption department in the use process, and the service life of the natural graphite end product in each consumption department;
the material flow parameters of the waste recovery link comprise the recovery rate of the natural graphite final product of each consumer department.
Specifically, in the step S3, the flow rate of the natural graphite in the dynamic material flow system includes a natural graphite raw ore yield, a natural graphite ore tailing amount, a natural graphite ore product inlet amount, a natural graphite ore product outlet amount, a natural graphite ore product yield, a natural graphite final product inlet amount, a natural graphite final product outlet amount, a loss amount of the natural graphite final product during processing, consumption amounts of various departments of the natural graphite, loss amount of the natural graphite final product during use, natural graphite scrapping amount, natural graphite recovery amount and natural graphite scrapping amount;
the stock of natural graphite in the dynamic mass flow system includes the stock of the ore collection stage and the stock of the product consumption stage.
Specifically, in the step S3, the calculation formula of the flow rate of the natural graphite in the dynamic material flow system is as follows:
wherein ,indicating natural graphite flow,/->Representing the mass of the natural graphite ore product and the final product c i Represents the graphite content in the natural graphite mineral product and the final product, i=1.
Specifically, the calculation formula of the stock of the natural graphite in the dynamic material flow system is as follows:
wherein S (T) represents the natural graphite inventory at year T,represents the inflow of natural graphite in the t-th year,indicating the outflow of natural graphite at the t-th year, and L indicating the service life of the natural graphite end product.
Specifically, in the step S2, the material flow parameter data of each link of the natural graphite in the dynamic material flow system is collected through the channels of statistics annual bill, customs database, internet platform, literature investigation and field investigation.
Compared with the prior art, the invention has the following beneficial effects:
according to the dynamic material flow analysis method for constructing the natural graphite resource metabolism based on the full life cycle theory, the collected material flow parameter data and the calculation formula are adopted according to the constructed dynamic material flow system framework of the natural graphite resource metabolism in the national level, so that the flow and the stock of the natural graphite resource in each life cycle stage in ore mining, processing and manufacturing, international trade, product consumption and waste recovery can be calculated relatively accurately, the dynamic evolution rule of the supply and demand conditions and the utilization efficiency of the natural graphite resource is revealed, and effective data support is provided for establishing and perfecting a natural graphite resource sustainable utilization system in China.
Drawings
The invention will be described in further detail with reference to the drawings and the specific embodiments.
FIG. 1 is a flow chart of a dynamic material flow analysis method of the state-level natural graphite resource metabolism in the invention;
FIG. 2 is a boundary diagram of a dynamic material flow system for natural graphite resource metabolism at the home level in China.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
The embodiment of the invention discloses a dynamic material flow analysis method for natural graphite resource metabolism, which is shown in figure 1 and comprises the following steps:
s1, constructing a framework of a dynamic material flow system for natural graphite resource metabolism in the national level.
The dynamic material flow system for the natural graphite resource metabolism at the national level comprises five links, namely an ore mining and selecting link, a processing and manufacturing link, an international trade link, a product consumption link and a waste recovery link. As shown in fig. 2, it is necessary to map the dynamic mass flow system boundary diagram of the natural graphite resource metabolism and determine the time frame of the system based on the operability of data collection. The dynamic material flow system of natural graphite resource metabolism determined in this example ranges from 2010 to 2020.
S2, collecting material flow parameter data of each link of the natural graphite in the dynamic material flow system based on the frame in the step S1.
Therefore, it is necessary to collect the material flow parameter data of natural graphite in the links of ore mining, processing and manufacturing, international trade, product consumption and waste recovery. In this embodiment, data is collected through statistical annual certificates, customs databases, internet platforms, literature research, field research, and the like.
Specifically, in the ore mining and selecting link, the natural graphite output and the natural graphite ore dressing recovery rate of each year in 2010 to 2020 need to be collected; the natural graphite ore dressing recovery rate in the embodiment of the invention is 79%.
In the processing and manufacturing process, the loss rate of the natural graphite end product in the processing process of the natural graphite end product in 2010-2020 needs to be collected, and the processing loss rate of the natural graphite end product in the processing process of the embodiment of the invention is 3%.
In the international trade link, the imported quantities of the natural graphite mineral products and the final products, the exported quantities of the natural graphite mineral products and the final products, and the graphite contents in the natural graphite mineral products and the final products are required to be collected every year between 2010 and 2020, and names, customs codes and natural graphite contents of import and export natural graphite products in the embodiment of the invention are summarized in table 1.
Table 1 import and export natural graphite products
In the product consumption link, the consumption of natural graphite every year between 2010 and 2020, the proportion of the consumption of natural graphite in each consumption department to the total consumption, the loss rate of the natural graphite end product in each consumption department in the use process, and the service life of the natural graphite end product in each consumption department are collected, and the proportion of each consumption department, the service loss rate of the product and the service life are summarized in table 2 in the embodiment of the invention.
TABLE 2 ratios of consumption departments of natural graphite and average consumption rate and service life of products
In the waste recovery section, it is necessary to collect the recovery rate of the natural graphite end product from each consumer sector each year between 2010 and 2020. The recovery rates of the refractory sector products in the examples of the present invention are summarized in table 3, with the recovery rates of the remaining sector products being 0.
TABLE 3 recovery of natural graphite products from the refractory sector
S3, based on the material flow parameter data in the step S2, calculating the flow and the storage quantity of the natural graphite in the dynamic material flow system.
S4, calculating the stock data based on the flow in the step S3, and acquiring the dynamic evolution characteristics of the natural graphite resources.
The flow rate of the natural graphite in the dynamic material flow system comprises natural graphite raw ore yield (O), natural graphite ore tailing amount (T), natural graphite ore product inlet amount (Pi), natural graphite ore product outlet amount (Px), natural graphite ore product yield (P), natural graphite final product inlet amount (Mi), natural graphite final product outlet amount (Mx), loss amount (Me) in the processing process of the natural graphite final product, consumption amount (U) of each department of natural graphite, loss amount (Ue) in the use process of the natural graphite final product, natural graphite scrapping amount (W), natural graphite recovery amount (Wr) and natural graphite scrapping amount (We).
The stock of natural graphite in the dynamic mass flow system includes the stock of ore collection stage (Sp) and the stock of product consumption stage (Su).
Here, the flow rate and the stock of natural graphite in a dynamic mass flow system need to be calculated following the law of conservation of mass, and all flow rates and stock units are kilotons of natural graphite (Kt GC).
The yield (O) of the natural graphite raw ore and the tailing amount (T) of the natural graphite ore are calculated according to the following formulas,
O t ＝Pr t /0.79 (1)
T t ＝O t -PR t ， (2)
wherein ,Ot Represents the yield of natural graphite crude ore in the T year, T t Representing the amount of natural graphite mine tailings in the t th year; pr (Pr) t The natural graphite production (obtained by data collection in step S2) at the t-th year is indicated.
The natural graphite mineral product inlet amount (Pi) and the natural graphite mineral product outlet amount (Px) are calculated according to the following formulas,
Pi t ＝Pir 1，t ×0.8+Pir 2，t ×0.99+Pir 3，t ×0.6+Pir 4，t ×0.6 (3)
Px t ＝Pxr 1，t ×0.8+Pxr 2，t ×0.99+Pxr 3，t ×0.6+Pxr 4，t ×0.6 (4)
wherein ,Pit Represents the imported quantity of natural graphite mineral products in the t year, px t Represents the export amount of natural graphite mineral products in the t-th year; pir (Pir) 1 and Pxr1 Mass representing the inlet and outlet amounts of the flake natural graphite, pir 2 and Pxr2 Mass indicative of inlet and outlet amounts of spheroidized graphite Pir 3 and Pxr3 Mass indicative of inlet and outlet amounts of graphite powder, pir 4 and Pxr4 The mass values representing the inlet and outlet amounts of other natural graphites (both obtained by data collection in step S2).
The natural graphite end product inlet amount (Mi) and the natural graphite end product outlet amount (Mx) were calculated according to the following formulas,
Mi t ＝Mir 1，t ×0.98+Mir 2，t ×0.5+Mir 3，t ×0.15+Mir 4，t ×0.06+Mir 5，t ×0.5 (5)
Mx t ＝Mxr 1，t ×0.98+Mxr 2，t ×0.5+Mxr 3，t ×0.15+Mxr 1，t ×0.06+Mir 5，t ×0.5 (6)
wherein ,Mit Represents the imported quantity of the final product of the natural graphite in the t year, and Mx t Represents the export amount of the natural graphite end product in the t-th year; mir 1 and Mxr1 Mass, mir, representing inlet and outlet amounts of non-electrical graphite finishes 2 and Mxr2 Mass, mir, representing the amount of refractory material inlet and outlet 3 and Mxr3 Mass, mir, representing inlet and outlet amounts of electrical graphite finishes 4 and Mxr4 Mass representing pencil inlet and outlet amounts, mir 5 and Mxr5 The mass representing the lead inlet and outlet amounts (both obtained by data collection in step S2).
The consumption (U) of each department of natural graphite is calculated according to the following formula 1～7 ) The loss (Ue) of the final product of natural graphite, the scrapped amount (W) of natural graphite,
U i，t ＝U t ×α i，t (7)
Ue t ＝∑(U i，t ×β i ) (8)
W t ＝∑W i，t (10)
wherein i=1,..7 represents each of the consumer departments of natural graphite, U i，t Representing the consumption of natural graphite by each department in the t-th year, ue t Represents the loss amount and W of the natural graphite end product in the t year i，t Representing the scrappage of natural graphite in each department of the t-th year, W t The scrapped amount of natural graphite in the t th year is represented; u (U) t Represents the consumption of natural graphite in the t year, alpha i，t Representing the consumption of natural graphite in each department in the t-th year to account for total consumptionProportion of the fee amount beta i Representing the loss rate of the natural graphite end product in each department in the use process, L i Indicating the service life of the natural graphite end product of each department (all obtained by data collection in step S2).
The natural graphite recovery amount (Wr) and the natural graphite discard amount (We) were calculated according to the following formulas,
Wr t ＝W 1，t ×γ 1，t (11)
We t ＝W t -Wr t (12)
wherein ,Wrt We represents the recovery amount of natural graphite in the t-th year t The natural graphite waste amount in the t year is represented; w (W) 1，t Represents the scrappage of natural graphite (obtained by the calculation result of the formula (9)) of refractory material department in the t year, gamma 1，t Represents the recovery rate (obtained by data collection in step S2) of the natural graphite product of the refractory sector, W t The rejection amount of the natural graphite in the t-th year is expressed (obtained by calculating the result of the formula (10)).
The natural graphite mineral product yield (P) and the loss (Me) during the processing of the natural graphite end product were calculated according to the following formulas,
P t ＝U t Mx t -Mi t +Me t -Wr t ＝(U t +Mx t -Mi t )/(1-0.03)-Wr t (13)
Me t ＝(P t +Wr t )×0.03 (14)
wherein ,Pt Represents the yield of natural graphite mineral products, me, in the t-th year t Representing the loss amount of the natural graphite end product in the processing process of the t-th year; u (U) t Represents the consumption of natural graphite (obtained by data collection in step S2) in the t-th year, mx t Represents the export amount of the final natural graphite product of the t-th year (obtained by calculating the formula (6)), mi t Represents the imported quantity (obtained by calculating the formula (5)) of the final product of the natural graphite in the t year, wr t The recovery amount of natural graphite at the t-th year (obtained by calculation of the formula (11)).
The stock quantity (Sp) of the ore collection stage is calculated according to the following formula,
ΔSp t ＝Pr t +Pi t -Px t -P t (15)
Sp t ＝Sp t-1 +ΔSp t (16)
wherein ,ΔSpt Indicating change in inventory at time t, sp t Representing the stock quantity of the natural graphite in the ore mining and selecting stage in the t-th year; pr (Pr) t Pi represents the production of natural graphite (obtained by data collection in step S2) in the t-th year t Represents the imported quantity of natural graphite mineral products (obtained by calculating the formula (3)) in the t-th year, and Px t Represents the export quantity of natural graphite mineral products (obtained by calculation of formula (4)) of the t-th year, P t The natural graphite mineral product yield (obtained by calculation of equation (13)) at the t-th year is shown.
The inventory level (Su) of the product consumption stage is calculated according to formulas (20) (21),
ΔSu t ＝∑(U i，t -Ue i，t -W i，t ) (17)
Su t ＝Su t-1 +ΔSu t (18)
wherein ,ΔSut Indicating the change amount of the stock of the t year, su t Representing the stock quantity of the natural graphite in the product consumption stage in the t-th year; u (U) i，t Representing the natural graphite consumption (obtained by calculation of formula (7)) of each department in the t-th year, ue i，t Representing the loss amount (obtained by the calculation result of a formula (8)) of the natural graphite end product in each department of the t year in the use process, W i，t The scrap amount of the natural graphite of each department in the t-th year is expressed (obtained through the calculation result of the formula (9)).
In summary, aiming at the situation that the quantitative accounting method is lacking in the analysis of the natural graphite resource metabolism, the dynamic material flow analysis method of the natural graphite resource metabolism is constructed based on the theory of the whole life cycle, and according to the constructed dynamic material flow system framework of the natural graphite resource metabolism at the national level, the collected material flow parameter data and the calculation formula are adopted, so that the flow and the stock of the natural graphite resource in each life cycle stage in the ore mining, processing and manufacturing, international trade, product consumption and waste recovery can be relatively accurately calculated, thereby revealing the dynamic evolution rule of the supply and demand conditions and the utilization efficiency of the natural graphite resource and providing effective data support for establishing and perfecting the sustainable utilization system of the natural graphite resource in China.
The foregoing description of the invention has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the invention pertains, based on the idea of the invention.
Claims (8)
1. A dynamic substance flow analysis method for natural graphite resource metabolism is characterized by comprising the following steps:
s1, constructing a framework of a dynamic material flow system for natural graphite resource metabolism in a national level;
s2, collecting material flow parameter data of each link of the natural graphite in the dynamic material flow system based on the frame in the step S1;
s3, based on the material flow parameter data in the step S2, calculating the flow and the stock of the natural graphite in the dynamic material flow system;
s4, calculating the stock data based on the flow in the step S3, and acquiring the dynamic evolution characteristics of the natural graphite resources.
2. The method according to claim 1, wherein in the step S1, the dynamic material flow system for natural graphite resource metabolism at the national level includes five links, namely, an ore mining and selecting link, a processing and manufacturing link, an international trade link, a product consumption link, and a waste recovery link.
3. The method for analyzing the dynamic material flow of the natural graphite resource metabolism according to claim 2, wherein the time range of the dynamic material flow system of the natural graphite resource metabolism at the national level is determined based on the operability of the link data.
4. A dynamic material flow analysis method for natural graphite resource metabolism according to claim 2 or 3, wherein in the step S2, the material flow parameter data of the ore mining and selecting link includes natural graphite yield and natural graphite ore dressing recovery rate;
the material flow parameter data of the processing and manufacturing links comprise loss rate of the natural graphite final product in the processing process;
the material flow parameter data of the international trade link comprises the material quantity of the imported amounts of the natural graphite mineral products and the final products, the material quantity of the exported amounts of the natural graphite mineral products and the final products, and the graphite content in the natural graphite mineral products and the final products;
the material flow parameter data of the product consumption link comprise the consumption of natural graphite, the proportion of the consumption of the natural graphite in each consumption department to the total consumption, the loss rate of the natural graphite end product in each consumption department in the use process, and the service life of the natural graphite end product in each consumption department;
the material flow parameter data of the waste recovery link comprise the recovery rate of the natural graphite final product of each consumption department.
5. The method according to claim 1, wherein in the step S3, the flow rate of the natural graphite in the dynamic material flow system includes a raw natural graphite ore yield, a natural graphite ore tailing amount, a natural graphite ore product inlet amount, a natural graphite ore product outlet amount, a natural graphite ore product yield, a natural graphite final product inlet amount, a natural graphite final product outlet amount, a loss amount during processing of the natural graphite final product, consumption amount by each department of natural graphite, loss amount during use of the natural graphite final product, natural graphite scrappage amount, natural graphite recovery amount, and natural graphite scrappage amount;
the stock of natural graphite in the dynamic mass flow system includes the stock of the ore collection stage and the stock of the product consumption stage.
6. The method for dynamic mass flow analysis of natural graphite resource metabolism according to claim 1 or 5, wherein in the step S3, the calculation formula of the flow rate of natural graphite in the dynamic mass flow system is:
wherein ,indicating natural graphite flow,/->Representing the mass of the natural graphite ore product and the final product c i Represents the graphite content in the natural graphite mineral product and the final product, i=1.
7. The method for dynamic mass flow analysis of natural graphite resource metabolism according to claim 1 or 5, wherein the calculation formula of the stock of natural graphite in the dynamic mass flow system is:
wherein S (T) represents the natural graphite inventory at year T,represents the inflow of natural graphite in the t-th year,/->Indicating the outflow of natural graphite at the t-th year, and L indicating the service life of the natural graphite end product.
8. The method for analyzing the dynamic material flow of the natural graphite resource metabolism according to claim 1, wherein in the step S2, material flow parameter data of each link of the natural graphite in the dynamic material flow system is collected through statistical yearbook, customs database, internet platform, literature investigation, field investigation and the like.
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