A method for directing the batching of industrial silicon production

Abstract

The application discloses a method for guiding industrial silicon production batching, which comprises the following steps: obtaining the theoretical chemical composition of the industrial silicon product by forward calculation according to the chemical composition of raw materials, the proportion of each raw material and the empirical consumption value of each raw material, and calculating the actual consumption value; comparing the theoretical chemical composition of the industrial silicon product with the chemical composition of the actually produced industrial silicon product, and then guiding the adjustment of the raw material composition and proportion of the industrial silicon production; obtaining the theoretical chemical composition of the industrial silicon product by forward calculation according to the adjusted raw material composition and proportion of the industrial silicon production and the actual consumption value, and calculating the actual consumption value again; comparing the theoretical chemical composition of the industrial silicon product with the chemical composition of the actually produced industrial silicon product, and then guiding the adjustment of the raw material composition and proportion of the industrial silicon production, thereby forming a closed loop; the cost performance of the industrial silicon product is improved, the silicon recovery rate is greatly improved, and the long-term stable operation of the ore smelting furnace is facilitated.

Description

Technical fields:

[0001] This invention relates to a method for guiding the batching of production materials, and more particularly to a method for guiding the batching of materials in industrial silicon production. Background technology:

[0002] Industrial silicon is a product smelted from silicon ore and carbonaceous reducing agents in a submerged arc furnace. Its main component, silicon, contains over 99% silicon, with the remaining impurities being iron, aluminum, calcium, etc. Industrial silicon production involves smelting silicon ore as raw material and carbon materials as reducing agents in an electric furnace. The main cost components are raw materials, auxiliary materials, and electricity. Downstream products mainly include organosilicon, silicon-aluminum alloys, polycrystalline silicon, and silicon carbide.

[0003] Faced with increasingly scarce silicon ore resources and the implementation of environmental protection policies, high-quality silicon ore is already in short supply. Traditional production methods rely entirely on workers' experience for batching, making it impossible to adjust raw materials and proportions promptly when the composition changes. This leads to waste of ore resources, disruption of the thermochemical reaction process, increased frequency of deterioration in the submerged arc furnace's operating conditions, reduced silicon recovery rates, increased difficulty in adjusting the furnace's operating conditions, and significantly lower production targets compared to using high-quality silicon ore, which is highly detrimental to normal smelting production. Summary of the Invention:

[0004] The purpose of this invention is to provide a method for guiding industrial silicon production batching that can improve the utilization rate of silicon ore resources and the cost-effectiveness of products while ensuring the long-term stable operation of the submerged arc furnace.

[0005] The objective of this invention is achieved through the following technical solution: a method for guiding the batching of materials in industrial silicon production, comprising the following steps:

[0006] Step 1: By analyzing the chemical composition of the raw materials, their proportions, and the empirical consumption values ​​of each raw material, the theoretical chemical composition of the industrial silicon product is calculated in a forward-looking manner.

[0007] Step 2: After formulating and producing the raw materials based on their chemical composition and proportions, the qualified industrial silicon products produced are tested and weighed to obtain the chemical composition and quality of the qualified industrial silicon products actually produced.

[0008] Step 3: Calculate the mass of each raw material actually involved in the production of qualified industrial silicon products, i.e., the amount of each raw material input, using the chemical composition of the actual produced qualified industrial silicon products.

[0009] Step 4: Divide the input amount of each raw material by the quality of qualified industrial silicon products to calculate the actual consumption value of each raw material;

[0010] Step 5: Compare the chemical composition of the theoretical industrial silicon product with the chemical composition of the qualified industrial silicon product produced in actual production, and then guide the adjustment of the raw material composition and ratio in industrial silicon production; when the composition of the raw materials changes, the comparison results can be used in a timely manner to adjust the raw materials and ratio, making full use of ore resources while ensuring the stable operation of the electric arc furnace, which is conducive to normal smelting production.

[0011] Step 6: By adjusting the chemical composition and proportion of the raw materials, as well as the actual consumption value of each raw material, the theoretical chemical composition of the industrial silicon product is calculated in a forward direction.

[0012] Step 7: After formulating and producing the raw materials using the adjusted chemical composition and proportions of each raw material, test and weigh the qualified industrial silicon products produced to obtain the chemical composition and quality of the qualified industrial silicon products actually produced.

[0013] Step 8: Repeat steps 3 through 7.

[0014] Furthermore, the raw materials are at least one silicon ore and at least one carbonaceous reducing agent; the chemical composition of each silicon ore includes at least: SiO2, Fe2O3, Al2O3, and CaO; the chemical composition of each carbonaceous reducing agent includes at least: C, Fe2O3, Al2O3, and CaO.

[0015] Furthermore, the chemical composition of industrial silicon products includes at least the following: the mass percentage of Si, the mass percentage of Fe, the mass percentage of Al, and the mass percentage of Ca in the industrial silicon product.

[0016] Furthermore, step 1, through the chemical composition of the raw materials, the proportions of each raw material, and the empirical consumption values ​​of each raw material, calculates the theoretical chemical composition of the industrial silicon product in a forward manner, specifically including the following steps:

[0017] (1) Multiply the total mass of each type of silicon ore by the empirical consumption value of the corresponding silicon ore, and then multiply by the mass percentage of each chemical component in each type of silicon ore to calculate the mass of SiO2, Fe2O3, Al2O3 and CaO in each type of silicon ore.

[0018] (2) Using the mass of SiO2, Fe2O3, Al2O3 and CaO in each type of silicon ore calculated in step (1), multiply by the mass percentage of Si in SiO2, Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, and calculate the mass of Si, Fe, Al and Ca respectively.

[0019] (3) The masses of Si, Fe, Al and Ca in each type of silicon ore calculated in step (2) are added together to obtain the total mass of Si, Fe, Al and Ca in the silicon ore fed into the furnace;

[0020] (4) Multiply the total mass of each carbonaceous reducing agent by the empirical consumption value of the corresponding carbonaceous reducing agent, and then multiply by the mass percentage content and percentage of each chemical component in each carbonaceous reducing agent as detected, to calculate the mass of Fe2O3, Al2O3 and CaO in each carbonaceous reducing agent respectively.

[0021] (5) Multiply the mass of Fe2O3, Al2O3 and CaO in each carbonaceous reducing agent calculated in step (4) by the mass percentage of Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, and calculate the mass of Fe, Al and Ca respectively.

[0022] (6) The masses of Fe, Al and Ca in each carbonaceous reducing agent calculated in step (5) are added together to obtain the total mass of Fe, total mass of Al and total mass of Ca in the carbonaceous reducing agent fed into the furnace.

[0023] (7) Add the total mass of Fe, Al and Ca in the silicon ore fed into the furnace obtained in step (3) to the total mass of Fe, Al and Ca in the carbonaceous reducing agent fed into the furnace obtained in step (6) respectively to obtain the total mass of Fe, Al and Ca in the raw materials fed into the furnace.

[0024] (8) Using the total mass of Fe, Al, and Ca in the raw materials fed into the furnace calculated in step (7), and the total mass of Si in the silicon ore fed into the furnace calculated in step 3, calculate the mass percentage of Si, Fe, Al, and Ca in the industrial silicon product, respectively. The calculation formulas are as follows:

[0025] Mass percentage of Si = M Si / (M Si +M Fe +M Al +M Ca (1)

[0026] Fe mass percentage = M Fe / (M Si +M Fe +M Al +M Ca (2)

[0027] Al mass percentage = M Al / (MSi +M Fe +M Al +M Ca (3)

[0028] The mass percentage of Ca = M Ca / (M Si +M Fe +M Al +M Ca (4)

[0029] Among them, M Si M represents the total mass of Si in the silicon ore fed into the furnace. Fe M represents the total mass of Fe in the raw materials fed into the furnace. Al M represents the total mass of Al in the raw materials fed into the furnace. Ca This represents the total mass of Ca in the raw materials fed into the furnace.

[0030] Furthermore, step 3 calculates the mass of each raw material actually involved in producing the qualified industrial silicon product, i.e., the input amount of each raw material, based on the chemical composition of the actually produced qualified industrial silicon product. This specifically includes the following steps:

[0031] (1) Multiply the mass percentage of Si, Fe, Al and Ca in the industrial silicon product by the mass percentage of Si, Fe and Al respectively to calculate the total mass of Si, Fe, Al and Ca in the industrial silicon.

[0032] (2) Divide the total mass of Si, Fe, Al and Ca in industrial silicon calculated in step (1) by the mass percentage of Si in SiO2, Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, to calculate the mass of SiO2, the total mass of Fe2O3, the total mass of Al2O3 and the total mass of CaO respectively.

[0033] (3) Divide the mass of SiO2 calculated in step (2) by the mass percentage of SiO2 detected in the silicon ore to calculate the mass of the silicon ore.

[0034] (4) Using the mass of silicon ore calculated in step (3), multiply it by the mass percentage of Fe2O3, Al2O3 and CaO in the silicon ore, respectively, to calculate the mass of Fe2O3, Al2O3 and CaO in the silicon ore.

[0035] (5) Subtract the total mass of Fe2O3, Al2O3 and CaO in the silicon ore calculated in step (1) from the total mass of Fe2O3, Al2O3 and CaO calculated in step 4 respectively to obtain the mass of Fe2O3, Al2O3 and CaO in the carbonaceous reducing agent.

[0036] (6) The mass of the carbonaceous reducing agent is obtained by dividing the mass of Fe2O3 in the carbonaceous reducing agent calculated in step (5) by the detected mass percentage of Fe2O3 in the carbonaceous reducing agent; or the mass of the carbonaceous reducing agent is obtained by dividing the mass of Al2O3 in the carbonaceous reducing agent calculated in step (5) by the detected mass percentage of Al2O3 in the carbonaceous reducing agent; or the mass of the carbonaceous reducing agent is obtained by dividing the mass of CaO in the carbonaceous reducing agent calculated in step (5) by the detected mass percentage of CaO in the carbonaceous reducing agent.

[0037] Furthermore, step 6 involves forward calculation of the theoretical chemical composition of the industrial silicon product by adjusting the chemical composition and proportion of the raw materials, as well as the actual consumption value of each raw material. This specifically includes the following steps:

[0038] (1) Multiply the total mass of each type of silicon ore by the actual consumption value of the corresponding silicon ore, and then multiply by the mass percentage of each chemical component in each type of silicon ore, to calculate the mass of SiO2, Fe2O3, Al2O3 and CaO in each type of silicon ore.

[0039] (2) Using the mass of SiO2, Fe2O3, Al2O3 and CaO in each type of silicon ore calculated in step (1), multiply by the mass percentage of Si in SiO2, Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, and calculate the mass of Si, Fe, Al and Ca respectively.

[0040] (3) The masses of Si, Fe, Al and Ca in each type of silicon ore calculated in step (2) are added together to obtain the total mass of Si, Fe, Al and Ca in the silicon ore fed into the furnace;

[0041] (4) Multiply the total mass of each carbonaceous reducing agent by the actual consumption value of the corresponding carbonaceous reducing agent, and then multiply by the mass percentage content and percentage of each chemical component in each carbonaceous reducing agent as detected, to calculate the mass of Fe2O3, Al2O3 and CaO in each carbonaceous reducing agent respectively.

[0042] (5) Multiply the mass of Fe2O3, Al2O3 and CaO in each carbonaceous reducing agent calculated in step (4) by the mass percentage of Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, and calculate the mass of Fe, Al and Ca respectively.

[0043] (6) The masses of Fe, Al and Ca in each carbonaceous reducing agent calculated in step (5) are added together to obtain the total mass of Fe, total mass of Al and total mass of Ca in the carbonaceous reducing agent fed into the furnace.

[0044] (7) Add the total mass of Fe, Al and Ca in the silicon ore fed into the furnace obtained in step (3) to the total mass of Fe, Al and Ca in the carbonaceous reducing agent fed into the furnace obtained in step (6) respectively to obtain the total mass of Fe, Al and Ca in the raw materials fed into the furnace.

[0045] (8) Using the total mass of Fe, Al, and Ca in the raw materials fed into the furnace calculated in step (7), and the total mass of Si in the silicon ore fed into the furnace calculated in step 3, calculate the mass percentage of Si, Fe, Al, and Ca in the industrial silicon product, respectively. The calculation formulas are as follows:

[0046] Mass percentage of Si = M Si / (M Si +M Fe +M Al +M Ca (1)

[0047] Fe mass percentage = M Fe / (M Si +M Fe +M Al +M Ca (2)

[0048] Al mass percentage = M Al / (M Si +M Fe +M Al +M Ca (3)

[0049] The mass percentage of Ca = M Ca / (M Si +M Fe +M Al +M Ca (4)

[0050] Among them, M SiM represents the total mass of Si in the silicon ore fed into the furnace. Fe M represents the total mass of Fe in the raw materials fed into the furnace. Al M represents the total mass of Al in the raw materials fed into the furnace. Ca This represents the total mass of Ca in the raw materials fed into the furnace.

[0051] This invention compares the theoretical chemical composition of industrial silicon products with the chemical composition of qualified industrial silicon products produced in actual production. This comparison guides adjustments to the raw material composition and proportions used in industrial silicon production. Adjustments are made to the raw material combinations, such as mixing coal, charcoal, and petroleum coke. These adjustments consider both cost and reducing agent availability, as well as the capacity of dust removal and desulfurization / denitrification systems. Regardless of the raw materials used, all these factors are carefully weighed. Precise calculations determine the raw material proportions, eliminating the need for repeated adjustments and enabling the production of the target product in a single step, significantly improving the product's cost-effectiveness.

[0052] Advantages of this invention:

[0053] The method of this invention guides the batching of industrial silicon production. Through precise batching, the target product can be produced in one go without repeated adjustments to the raw material ratio, thus improving the cost-effectiveness of industrial silicon products and significantly increasing the silicon recovery rate. At the same time, by adjusting the batching in a timely and precise manner, the frequency of deterioration of the submerged arc furnace operating conditions is significantly reduced, which lowers the difficulty of adjusting the submerged arc furnace operating conditions and is conducive to the long-term stable operation of the submerged arc furnace. Detailed implementation method:

[0054] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] Example 1: A method for guiding the batching of materials in industrial silicon production, comprising the following steps:

[0056] Step 1: By analyzing the chemical composition of the raw materials, their proportions, and the empirical consumption values ​​of each raw material, the theoretical chemical composition of the industrial silicon product is calculated.

[0057] In one specific embodiment, the raw materials are at least one silicon ore and at least one carbonaceous reducing agent; the chemical composition of each silicon ore includes at least: SiO2, Fe2O3, Al2O3, and CaO; the chemical composition of each carbonaceous reducing agent includes at least: C, Fe2O3, Al2O3, and CaO.

[0058] In one specific embodiment, the chemical composition of the industrial silicon product includes at least the following: the mass percentage content of Si, the mass percentage content of Fe, the mass percentage content of Al, and the mass percentage content of Ca in the industrial silicon product.

[0059] The theoretical chemical composition of industrial silicon products is calculated by using the chemical composition and proportions of raw materials, as well as empirical consumption values ​​of each raw material. This process includes the following steps:

[0060] (1) Multiply the total mass of each type of silicon ore by the empirical consumption value of the corresponding silicon ore, which is generally 2.7-3.2, and then multiply by the mass percentage of each chemical component in each type of silicon ore to calculate the mass of SiO2, Fe2O3, Al2O3 and CaO in each type of silicon ore.

[0061] (2) Using the mass of SiO2, Fe2O3, Al2O3 and CaO in each type of silicon ore calculated in step (1), multiply by the mass percentage of Si in SiO2, Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, and calculate the mass of Si, Fe, Al and Ca respectively.

[0062] (3) The masses of Si, Fe, Al and Ca in each type of silicon ore calculated in step (2) are added together to obtain the total mass of Si, Fe, Al and Ca in the silicon ore fed into the furnace;

[0063] (4) Multiply the total mass of each carbonaceous reducing agent by the empirical consumption value of the corresponding carbonaceous reducing agent, which is generally 2.7-3.2, and then multiply by the mass percentage content and percentage of each chemical component in each carbonaceous reducing agent to calculate the mass of Fe2O3, Al2O3 and CaO in each carbonaceous reducing agent.

[0064] (5) Multiply the mass of Fe2O3, Al2O3 and CaO in each carbonaceous reducing agent calculated in step (4) by the mass percentage of Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, and calculate the mass of Fe, Al and Ca respectively.

[0065] (6) The masses of Fe, Al and Ca in each carbonaceous reducing agent calculated in step (5) are added together to obtain the total mass of Fe, total mass of Al and total mass of Ca in the carbonaceous reducing agent fed into the furnace.

[0066] (7) Add the total mass of Fe, Al and Ca in the silicon ore fed into the furnace obtained in step (3) to the total mass of Fe, Al and Ca in the carbonaceous reducing agent fed into the furnace obtained in step (6) respectively to obtain the total mass of Fe, Al and Ca in the raw materials fed into the furnace.

[0067] (8) Using the total mass of Fe, Al, and Ca in the raw materials fed into the furnace calculated in step (7), and the total mass of Si in the silicon ore fed into the furnace calculated in step 3, calculate the mass percentage of Si, Fe, Al, and Ca in the industrial silicon product, respectively. The calculation formulas are as follows:

[0068] Mass percentage of Si = M Si / (M Si +M Fe +M Al +M Ca (1)

[0069] Fe mass percentage = M Fe / (M Si +M Fe +M Al +M Ca (2)

[0070] Al mass percentage = M Al / (M Si +M Fe +M Al +M Ca (3)

[0071] The mass percentage of Ca = M Ca / (M Si +M Fe +M Al +M Ca (4)

[0072] Among them, M Si M represents the total mass of Si in the silicon ore fed into the furnace. Fe M represents the total mass of Fe in the raw materials fed into the furnace. Al M represents the total mass of Al in the raw materials fed into the furnace. Ca This represents the total mass of Ca in the raw materials fed into the furnace.

[0073] Step 2: After formulating and producing the raw materials based on their chemical composition and proportions, the qualified industrial silicon products produced are tested and weighed to obtain the chemical composition and quality of the qualified industrial silicon products actually produced.

[0074] Step 3: Calculate the mass of each raw material actually used in the production of qualified industrial silicon products, i.e., the input quantity of each raw material, using the chemical composition of the actual produced qualified industrial silicon products. This includes the following steps:

[0075] (1) Multiply the mass percentage of Si, Fe, Al and Ca in the industrial silicon product by the mass percentage of Si, Fe and Al respectively to calculate the total mass of Si, Fe, Al and Ca in the industrial silicon.

[0076] (2) Divide the total mass of Si, Fe, Al and Ca in industrial silicon calculated in step (1) by the mass percentage of Si in SiO2, Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, to calculate the mass of SiO2, the total mass of Fe2O3, the total mass of Al2O3 and the total mass of CaO respectively.

[0077] (3) Divide the mass of SiO2 calculated in step (2) by the mass percentage of SiO2 detected in the silicon ore to calculate the mass of the silicon ore.

[0078] (4) Using the mass of silicon ore calculated in step (3), multiply it by the mass percentage of Fe2O3, Al2O3 and CaO in the silicon ore, respectively, to calculate the mass of Fe2O3, Al2O3 and CaO in the silicon ore.

[0079] (5) Subtract the total mass of Fe2O3, Al2O3 and CaO in the silicon ore calculated in step (1) from the total mass of Fe2O3, Al2O3 and CaO calculated in step 4 respectively to obtain the mass of Fe2O3, Al2O3 and CaO in the carbonaceous reducing agent.

[0080] (6) The mass of the carbonaceous reducing agent is obtained by dividing the mass of Fe2O3 in the carbonaceous reducing agent calculated in step (5) by the detected mass percentage of Fe2O3 in the carbonaceous reducing agent; or the mass of the carbonaceous reducing agent is obtained by dividing the mass of Al2O3 in the carbonaceous reducing agent calculated in step (5) by the detected mass percentage of Al2O3 in the carbonaceous reducing agent; or the mass of the carbonaceous reducing agent is obtained by dividing the mass of CaO in the carbonaceous reducing agent calculated in step (5) by the detected mass percentage of CaO in the carbonaceous reducing agent.

[0081] Step 4: Divide the input amount of each raw material by the quality of qualified industrial silicon products to calculate the actual consumption value of each raw material;

[0082] Step 5: Compare the chemical composition of the theoretical industrial silicon product with the chemical composition of the qualified industrial silicon product actually produced, and then guide the adjustment of the raw material composition and ratio in the production of industrial silicon.

[0083] Step 6: By adjusting the chemical composition and proportions of the raw materials, as well as the actual consumption of each raw material, the theoretical chemical composition of the industrial silicon product is calculated forward. This includes the following steps:

[0084] (1) Multiply the total mass of each type of silicon ore by the actual consumption value of the corresponding silicon ore, and then multiply by the mass percentage of each chemical component in each type of silicon ore, to calculate the mass of SiO2, Fe2O3, Al2O3 and CaO in each type of silicon ore.

[0085] (2) Using the mass of SiO2, Fe2O3, Al2O3 and CaO in each type of silicon ore calculated in step (1), multiply by the mass percentage of Si in SiO2, Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, and calculate the mass of Si, Fe, Al and Ca respectively.

[0086] (3) The masses of Si, Fe, Al and Ca in each type of silicon ore calculated in step (2) are added together to obtain the total mass of Si, Fe, Al and Ca in the silicon ore fed into the furnace;

[0087] (4) Multiply the total mass of each carbonaceous reducing agent by the actual consumption value of the corresponding carbonaceous reducing agent, and then multiply by the mass percentage content and percentage of each chemical component in each carbonaceous reducing agent as detected, to calculate the mass of Fe2O3, Al2O3 and CaO in each carbonaceous reducing agent respectively.

[0088] (5) Multiply the mass of Fe2O3, Al2O3 and CaO in each carbonaceous reducing agent calculated in step (4) by the mass percentage of Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, and calculate the mass of Fe, Al and Ca respectively.

[0089] (6) The masses of Fe, Al and Ca in each carbonaceous reducing agent calculated in step (5) are added together to obtain the total mass of Fe, total mass of Al and total mass of Ca in the carbonaceous reducing agent fed into the furnace.

[0090] (7) Add the total mass of Fe, Al and Ca in the silicon ore fed into the furnace obtained in step (3) to the total mass of Fe, Al and Ca in the carbonaceous reducing agent fed into the furnace obtained in step (6) respectively to obtain the total mass of Fe, Al and Ca in the raw materials fed into the furnace.

[0091] (8) Using the total mass of Fe, Al, and Ca in the raw materials fed into the furnace calculated in step (7), and the total mass of Si in the silicon ore fed into the furnace calculated in step 3, calculate the mass percentage of Si, Fe, Al, and Ca in the industrial silicon product, respectively. The calculation formulas are as follows:

[0092] Mass percentage of Si = M Si / (M Si +M Fe +M Al +M Ca (1)

[0093] Fe mass percentage = M Fe / (M Si +M Fe +M Al +M Ca (2)

[0094] Al mass percentage = M Al / (M Si +M Fe +M Al +M Ca (3)

[0095] The mass percentage of Ca = M Ca / (M Si +M Fe +M Al +M Ca (4)

[0096] Among them, M Si M represents the total mass of Si in the silicon ore fed into the furnace. Fe M represents the total mass of Fe in the raw materials fed into the furnace. Al M represents the total mass of Al in the raw materials fed into the furnace. Ca This represents the total mass of Ca in the raw materials fed into the furnace.

[0097] Step 7: After formulating and producing the raw materials using the adjusted chemical composition and proportions of each raw material, test and weigh the qualified industrial silicon products produced to obtain the chemical composition and quality of the qualified industrial silicon products actually produced.

[0098] Step 8: Repeat steps 3 through 7.

[0099] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for guiding the batching of raw materials in industrial silicon production, characterized in that, It includes the following steps: Step 1: By analyzing the chemical composition of the raw materials, their proportions, and the empirical consumption values ​​of each raw material, the theoretical chemical composition of the industrial silicon product is calculated in a forward-looking manner. Step 2: After formulating and producing the raw materials based on their chemical composition and proportions, the qualified industrial silicon products produced are tested and weighed to obtain the chemical composition and quality of the qualified industrial silicon products actually produced. Step 3: Calculate the mass of each raw material actually involved in the production of qualified industrial silicon products, i.e., the amount of each raw material input, using the chemical composition of the actual produced qualified industrial silicon products. Step 4: Divide the input amount of each raw material by the quality of qualified industrial silicon products to calculate the actual consumption value of each raw material; Step 5: Compare the chemical composition of the theoretical industrial silicon product with the chemical composition of the qualified industrial silicon product actually produced, and then guide the adjustment of the raw material composition and ratio of industrial silicon production; specifically, adjust the combination of raw materials. On the one hand, consider the use of appropriate reducing agents from the perspective of cost and reducing agent inventory. On the other hand, consider the use of appropriate reducing agents from the perspective of the capacity of dust removal and desulfurization and denitrification systems. Determine the raw material ratio scheme through precise calculation. Step 6: By adjusting the chemical composition and proportion of the raw materials, as well as the actual consumption value of each raw material, the theoretical chemical composition of the industrial silicon product is calculated in a forward direction. Step 7: After formulating and producing the raw materials using the adjusted chemical composition and proportions of each raw material, test and weigh the qualified industrial silicon products produced to obtain the chemical composition and quality of the qualified industrial silicon products actually produced. Step 8: Repeat steps 3 through 7; Step 1 involves forward calculation of the theoretical chemical composition of industrial silicon products based on the chemical composition and proportions of the raw materials, as well as the empirical consumption values ​​of each raw material. This step specifically includes the following steps: (1) Multiply the total mass of each type of silicon ore by the empirical consumption value of the corresponding silicon ore, and then multiply by the mass percentage of each chemical component in each type of silicon ore to calculate the mass of SiO2, Fe2O3, Al2O3 and CaO in each type of silicon ore. (2) Using the mass of SiO2, Fe2O3, Al2O3 and CaO in each type of silicon ore calculated in step (1), multiply by the mass percentage of Si in SiO2, Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, and calculate the mass of Si, Fe, Al and Ca respectively. (3) The masses of Si, Fe, Al and Ca in each type of silicon ore calculated in step (2) are added together to obtain the total mass of Si, Fe, Al and Ca in the silicon ore fed into the furnace; (4) Multiply the total mass of each carbonaceous reducing agent by the empirical consumption value of the corresponding carbonaceous reducing agent, and then multiply by the mass percentage content and percentage of each chemical component in each carbonaceous reducing agent to calculate the mass of Fe2O3, Al2O3 and CaO in each carbonaceous reducing agent. (5) Multiply the mass of Fe2O3, Al2O3 and CaO in each carbonaceous reducing agent calculated in step (4) by the mass percentage of Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, and calculate the mass of Fe, Al and Ca respectively. (6) The masses of Fe, Al and Ca in each carbonaceous reducing agent calculated in step (5) are added together to obtain the total mass of Fe, total mass of Al and total mass of Ca in the carbonaceous reducing agent fed into the furnace; (7) Add the total mass of Fe, Al and Ca in the silicon ore fed into the furnace obtained in step (3) to the total mass of Fe, Al and Ca in the carbonaceous reducing agent fed into the furnace obtained in step (6) respectively to obtain the total mass of Fe, Al and Ca in the raw materials fed into the furnace. (8) Using the total mass of Fe, Al, and Ca in the raw materials fed into the furnace calculated in step (7), and the total mass of Si in the silicon ore fed into the furnace calculated in step 3, calculate the mass percentage of Si, Fe, Al, and Ca in the industrial silicon product, respectively. The calculation formulas are as follows: The mass percentage of Si = M Si / (M) Si +M Fe +M Al +M Ca (1) Fe mass percentage = M Fe / (M) Si +M Fe +M Al +M Ca (2) Al mass percentage = M Al / (M) Si +M Fe +M Al +M Ca (3) Ca mass percentage = M Ca / (M) Si +M Fe +M Al +M Ca (4) Among them, M Si M represents the total mass of Si in the silicon ore fed into the furnace. Fe M represents the total mass of Fe in the raw materials fed into the furnace. Al M represents the total mass of Al in the raw materials fed into the furnace. Ca This represents the total mass of Ca in the raw materials fed into the furnace.

2. The method for guiding the batching of industrial silicon production according to claim 1, characterized in that, The raw materials are at least one silicon ore and at least one carbonaceous reducing agent; the chemical composition of each silicon ore includes at least: SiO2, Fe2O3, Al2O3, and CaO; the chemical composition of each carbonaceous reducing agent includes at least: C, Fe2O3, Al2O3, and CaO.

3. The method for guiding the batching of industrial silicon production according to claim 2, characterized in that, The chemical composition of industrial silicon products includes at least the following: the mass percentage of Si, the mass percentage of Fe, the mass percentage of Al, and the mass percentage of Ca.

4. The method for guiding the batching of industrial silicon production according to claim 3, characterized in that, Step 3 calculates the mass of each raw material actually involved in producing the qualified industrial silicon product, i.e., the input amount of each raw material, based on the chemical composition of the actually produced qualified industrial silicon product. This specifically includes the following steps: (1) Multiply the mass percentage of Si, Fe, Al and Ca in the industrial silicon product by the mass percentage of Si, Fe and Al respectively to calculate the total mass of Si, Fe and Al and the total mass of Ca in the industrial silicon. (2) Divide the total mass of Si, Fe, Al and Ca in industrial silicon calculated in step (1) by the mass percentage of Si in SiO2, Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, to calculate the mass of SiO2, the total mass of Fe2O3, the total mass of Al2O3 and the total mass of CaO respectively. (3) Divide the mass of SiO2 calculated in step (2) by the mass percentage of SiO2 detected in the silicon ore to calculate the mass of the silicon ore; (4) Using the mass of silicon ore calculated in step (3), multiply it by the mass percentage of Fe2O3, Al2O3 and CaO in the silicon ore, respectively, to calculate the mass of Fe2O3, Al2O3 and CaO in the silicon ore. (5) Subtract the total mass of Fe2O3, Al2O3 and CaO in the silicon ore calculated in step (1) from the total mass of Fe2O3, Al2O3 and CaO calculated in step 4 respectively to obtain the mass of Fe2O3, Al2O3 and CaO in the carbonaceous reducing agent. (6) The mass of the carbonaceous reducing agent is obtained by dividing the mass of Fe2O3 in the carbonaceous reducing agent calculated in step (5) by the mass percentage of Fe2O3 in the carbonaceous reducing agent detected; or the mass of the carbonaceous reducing agent is obtained by dividing the mass of Al2O3 in the carbonaceous reducing agent calculated in step (5) by the mass percentage of Al2O3 in the carbonaceous reducing agent detected; or the mass of the carbonaceous reducing agent is obtained by dividing the mass of CaO in the carbonaceous reducing agent calculated in step (5) by the mass percentage of CaO in the carbonaceous reducing agent detected.

5. The method for guiding the batching of industrial silicon production according to claim 3, characterized in that, Step 6 involves forward calculation of the theoretical chemical composition of the industrial silicon product by adjusting the chemical composition and proportion of the raw materials, as well as the actual consumption value of each raw material. This step specifically includes the following steps: (1) Multiply the total mass of each type of silicon ore by the actual consumption value of the corresponding silicon ore, and then multiply by the mass percentage of each chemical component in each type of silicon ore as detected, to calculate the mass of SiO2, Fe2O3, Al2O3 and CaO in each type of silicon ore; (2) Using the mass of SiO2, Fe2O3, Al2O3 and CaO in each type of silicon ore calculated in step (1), multiply by the mass percentage of Si in SiO2, Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, and calculate the mass of Si, Fe, Al and Ca respectively. (3) The masses of Si, Fe, Al and Ca in each type of silicon ore calculated in step (2) are added together to obtain the total mass of Si, Fe, Al and Ca in the silicon ore fed into the furnace; (4) Multiply the total mass of each carbonaceous reducing agent by the actual consumption value of the corresponding carbonaceous reducing agent, and then multiply by the mass percentage content and percentage of each chemical component in each carbonaceous reducing agent as detected, to calculate the mass of Fe2O3, Al2O3 and CaO in each carbonaceous reducing agent respectively; (5) Multiply the mass of Fe2O3, Al2O3 and CaO in each carbonaceous reducing agent calculated in step (4) by the mass percentage of Fe in Fe2O3, Al in Al2O3 and Ca in CaO respectively, and calculate the mass of Fe, Al and Ca respectively. (6) The masses of Fe, Al and Ca in each carbonaceous reducing agent calculated in step (5) are added together to obtain the total mass of Fe, total mass of Al and total mass of Ca in the carbonaceous reducing agent fed into the furnace; (7) Add the total mass of Fe, Al and Ca in the silicon ore fed into the furnace obtained in step (3) to the total mass of Fe, Al and Ca in the carbonaceous reducing agent fed into the furnace obtained in step (6) respectively to obtain the total mass of Fe, Al and Ca in the raw materials fed into the furnace. (8) Using the total mass of Fe, Al, and Ca in the raw materials fed into the furnace calculated in step (7), and the total mass of Si in the silicon ore fed into the furnace calculated in step 3, calculate the mass percentage of Si, Fe, Al, and Ca in the industrial silicon product, respectively. The calculation formulas are as follows: The mass percentage of Si = M Si / (M) Si +M Fe +M Al +M Ca (1) Fe mass percentage = M Fe / (M) Si +M Fe +M Al +M Ca (2) Al mass percentage = M Al / (M) Si +M Fe +M Al +M Ca (3) Ca mass percentage = M Ca / (M) Si +M Fe +M Al +M Ca (4) Among them, M Si M represents the total mass of Si in the silicon ore fed into the furnace. Fe M represents the total mass of Fe in the raw materials fed into the furnace. Al M represents the total mass of Al in the raw materials fed into the furnace. Ca This represents the total mass of Ca in the raw materials fed into the furnace.