Manganese-silicon alloy smelting feeding regulation and control method and system

Abstract

The invention provides a manganese-silicon alloy smelting feeding regulation and control method and system, manganese iron ore and silica are pretreated to obtain fine manganese iron ore materials and silica powder, and the fine manganese iron ore materials and the silica powder are mixed with quick lime to obtain a spherical mixture; the spherical mixture meeting the preset morphological structure is screened for preheating treatment, and the feeding state of at least part of the preheated spherical mixture to the smelting furnace is adjusted based on the real-time preheating state characteristics of the spherical mixture; based on the feeding amount of the spherical mixture of the smelting furnace, the feeding state of coke to the smelting furnace is adjusted; the smelting reaction state in the smelting furnace is recognized on the basis of tail gas emission characteristics of the smelting furnace, so that the feeding state of the coke into the smelting furnace is adjusted again, all the spherical mixtures have material components with proper proportions, different materials make full contact, it is guaranteed that all the spherical mixtures can be independently subjected to smelting reaction, and the smelting efficiency is improved. And the feeding amount of the spherical mixture and the coke is adaptively adjusted, and the smelting reaction efficiency and the manganese-silicon alloy smelting yield are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ferromanganese-silicon alloy smelting, and particularly relates to a method and system for regulating the feeding of ferromanganese-silicon alloy smelting. Background Art

[0002] Ferromanganese-silicon alloy is an alloy composed of elements such as manganese, silicon, iron, and carbon, and it has wide applications in special alloy scenarios. Ferromanganese-silicon alloy is an alloy with a relatively large market demand, resulting in a relatively high output of ferromanganese-silicon alloy. The smelting efficiency and production capacity of ferromanganese-silicon alloy are mainly affected by the grade of manganese iron ore. If high-grade manganese iron ore is used as the smelting raw material, the smelting efficiency of ferromanganese-silicon alloy can be improved, but the smelting cost is also increased; if low-grade manganese iron ore is used as the smelting raw material, although the smelting cost can be reduced, it directly leads to a decrease in the output of ferromanganese-silicon alloy smelting. Considering the large share of low-grade manganese iron ore raw materials in the market, how to improve the smelting efficiency and output of ferromanganese-silicon alloy by improving the smelting process and changing the feeding state of the smelting raw materials during the smelting process is of great significance. Summary of the Invention

[0003] Aiming at the defects existing in the prior art, the present invention provides a method and system for regulating the feeding of ferromanganese-silicon alloy smelting, which pre-treats manganese iron ore and silica to obtain fine manganese iron ore and silica powder, and mixes them with quicklime to obtain a spherical mixture; screens the spherical mixtures that meet the preset morphological structure for preheating treatment, and adjusts the feeding state of at least part of the preheated spherical mixtures to the smelting furnace based on the real-time preheating state characteristics of the spherical mixtures; adjusts the feeding state of coke to the smelting furnace based on the feeding amount of the spherical mixtures in the smelting furnace; also identifies the smelting reaction state in the smelting furnace based on the tail gas emission characteristics of the smelting furnace, and adjusts the feeding state of coke to the smelting furnace again, so that each spherical mixture has a suitable proportion of material components and different materials are fully contacted, ensuring that each spherical mixture can independently carry out a smelting reaction, and adaptively adjusting the feeding amounts of the spherical mixtures and coke to improve the smelting reaction efficiency and the output of ferromanganese-silicon alloy smelting.

[0004] The present invention provides a method for regulating the feeding of ferromanganese-silicon alloy smelting, including the following steps:

[0005] Step S1, pre-treat manganese iron ore and silica to obtain fine manganese iron ore and silica powder; mix the fine manganese iron ore, silica powder, and quicklime to obtain a spherical mixture;

[0006] Step S2, screen all the spherical mixtures to obtain the spherical mixtures that meet the preset morphological structure; perform preheating treatment on the spherical mixtures that meet the preset morphological structure to obtain the real-time preheating state characteristics of the spherical mixtures;

[0007] Step S3: Based on the real-time preheating state characteristics, adjust the feeding state of at least part of the preheated spherical mixture to the smelting furnace; based on the feeding amount of the spherical mixture in the smelting furnace, adjust the feeding state of coke to the smelting furnace;

[0008] Step S4: Based on the tail gas emission characteristics of the smelting furnace, identify the smelting reaction state in the smelting furnace, and thereby adjust the feeding state of coke to the smelting furnace again.

[0009] In an embodiment disclosed in the present application, in the step S1, the manganese iron ore and silica are pretreated to obtain fine manganese iron ore and silica powder; the fine manganese iron ore, silica powder, and quicklime are mixed to obtain a spherical mixture, including:

[0010] The manganese iron ore and silica are respectively subjected to drying pretreatment, and it is judged whether the manganese iron ore and the silica meet the preset water content condition; the manganese iron ore and silica that meet the preset water content condition are subjected to crushing pretreatment to obtain fine manganese iron ore and silica powder that meet the corresponding preset particle fineness condition;

[0011] According to a preset weight ratio, the fine manganese iron ore and silica powder that meet the corresponding preset particle fineness condition and quicklime are uniformly mixed; the uniformly mixed fine manganese iron ore, silica powder, and quicklime are pelletized to obtain a spherical mixture.

[0012] In an embodiment disclosed in the present application, in the step S2, all the spherical mixtures are screened to obtain spherical mixtures that meet the preset morphological structure; the spherical mixtures that meet the preset morphological structure are preheated to obtain the real-time preheating state characteristics of the spherical mixture, including:

[0013] All the spherical mixtures are transferred to a conveyor belt for dynamic size and structure screening to obtain spherical mixtures that meet the preset ball diameter size and spherical surface integrity;

[0014] The spherical mixtures that meet the preset ball diameter size and spherical surface integrity are transferred to a rotary kiln for dynamic preheating treatment, and the spherical mixtures in the rotary kiln are subjected to thermal infrared detection to obtain the real-time preheating state characteristics of each spherical mixture in the rotary kiln; wherein, the real-time preheating state characteristics include the global temperature size distribution characteristics of each spherical mixture.

[0015] In an embodiment disclosed in the present application, in the step S3, based on the real-time preheating state characteristics, adjust the feeding state of at least part of the preheated spherical mixture to the smelting furnace; based on the feeding amount of the spherical mixture in the smelting furnace, adjust the feeding state of coke to the smelting furnace, including:

[0016] Based on the global temperature size distribution characteristics of each spherical mixture included in the real-time preheating state characteristics, locate the spherical mixtures that meet the preset preheating conditions, and thereby adjust the feed rate of the spherical mixtures that meet the preset preheating conditions to the smelting furnace;

[0017] Based on the feed rate of the spherical mixtures in the smelting furnace, estimate the amount of coke required for the spherical mixtures in the smelting furnace to fully react; based on the required amount of coke and the in-furnace temperature change state of the smelting furnace, adjust the feeding rate of coke to the smelting furnace.

[0018] In an embodiment disclosed in the present application, in the step S4, based on the tail gas emission characteristics of the smelting furnace, identify the smelting reaction state in the smelting furnace, and thereby adjust the feeding state of coke to the smelting furnace again, including:

[0019] Conduct dynamic detection of the temperature and composition of the tail gas emitted by the smelting furnace to obtain the tail gas temperature change characteristics and the tail gas soot particle content change characteristics of the tail gas emitted by the smelting furnace; based on the tail gas temperature change characteristics and the tail gas soot particle content change characteristics, determine whether the smelting reaction in the smelting furnace is in a sufficient state;

[0020] When the smelting reaction in the smelting furnace is not in a sufficient state, increase the coke feeding amount to the smelting furnace; when the smelting reaction in the smelting furnace is in a sufficient state, suspend the feeding of coke to the smelting furnace.

[0021] The present invention also provides a manganese-silicon alloy smelting feed regulation system, including:

[0022] A pretreatment module for pretreating manganese iron ore and silica to obtain fine manganese iron ore and silica powder;

[0023] A mixing and forming module for mixing the fine manganese iron ore, silica powder, and quicklime to obtain spherical mixtures;

[0024] A screening module for screening all spherical mixtures to obtain spherical mixtures that meet the preset morphological structure;

[0025] A preheating treatment and monitoring module for preheating the spherical mixtures that meet the preset morphological structure to obtain the real-time preheating state characteristics of the spherical mixtures;

[0026] A mixture feed adjustment module for adjusting the feed state of at least part of the preheated spherical mixtures to the smelting furnace based on the real-time preheating state characteristics;

[0027] A coke feed initial adjustment module for adjusting the feed state of coke to the smelting furnace based on the feed rate of the spherical mixtures in the smelting furnace;

[0028] A coke feed secondary adjustment module, which is used to identify the smelting reaction state in the smelting furnace based on the tail gas emission characteristics of the smelting furnace, so as to adjust the coke feeding state to the smelting furnace again.

[0029] In an embodiment disclosed in the present application, the pretreatment module is used to pretreat manganese iron ore and silica to obtain fine manganese iron ore and silica powder, including:

[0030] Respectively perform drying pretreatment on manganese iron ore and silica, and judge whether the manganese iron ore and the silica meet the preset moisture content conditions; perform crushing pretreatment on the manganese iron ore and silica that meet the preset moisture content conditions to obtain fine manganese iron ore and silica powder that meet the corresponding preset particle fineness conditions;

[0031] The mixing and forming module is used to mix the fine manganese iron ore, silica powder, and quicklime to obtain a spherical mixture, including:

[0032] According to a preset weight ratio, uniformly mix the fine manganese iron ore, silica powder, and quicklime that meet the corresponding preset particle fineness conditions; perform briquetting treatment on the uniformly mixed fine manganese iron ore, silica powder, and quicklime to obtain a spherical mixture.

[0033] In an embodiment disclosed in the present application, the screening module is used to screen all spherical mixtures to obtain spherical mixtures that meet the preset morphological structure, including:

[0034] Transfer all spherical mixtures to a conveyor belt for dynamic size and structure screening treatment to obtain spherical mixtures that meet the preset ball diameter size and spherical surface integrity;

[0035] The preheating treatment and monitoring module is used to perform preheating treatment on the spherical mixtures that meet the preset morphological structure to obtain the real-time preheating state characteristics of the spherical mixtures, including:

[0036] Transfer the spherical mixtures that meet the preset ball diameter size and spherical surface integrity to a rotary kiln for dynamic preheating treatment, and perform thermal infrared detection on the spherical mixtures in the rotary kiln to obtain the real-time preheating state characteristics of all spherical mixtures in the rotary kiln; wherein, the real-time preheating state characteristics include the global temperature size distribution characteristics of each spherical mixture.

[0037] In an embodiment disclosed in the present application, the mixture feed adjustment module is used to adjust the feeding state of at least part of the preheated spherical mixtures to the smelting furnace based on the real-time preheating state characteristics, including:

[0038] Based on the global temperature size distribution characteristics of each spherical mixture included in the real-time preheating state characteristics, locate the spherical mixtures that meet the preset preheating conditions, and thereby adjust the feeding amount of the spherical mixtures that meet the preset preheating conditions into the smelting furnace;

[0039] The coke feeding initial adjustment module is used to adjust the feeding state of coke into the smelting furnace based on the feeding amount of the spherical mixtures in the smelting furnace, including:

[0040] Based on the feeding amount of the spherical mixtures in the smelting furnace, estimate the amount of coke required for the sufficient reaction of the spherical mixtures in the smelting furnace; based on the required amount of coke and the temperature change state in the smelting furnace, adjust the feeding rate of coke into the smelting furnace.

[0041] In an embodiment disclosed in the present application, the coke feeding secondary adjustment module is used to identify the smelting reaction state in the smelting furnace based on the tail gas emission characteristics of the smelting furnace, and thereby adjust the feeding state of coke into the smelting furnace again, including:

[0042] Dynamically detect the temperature and composition of the tail gas emitted by the smelting furnace to obtain the tail gas temperature change characteristics and the tail gas soot particle content change characteristics of the tail gas emitted by the smelting furnace; based on the tail gas temperature change characteristics and the tail gas soot particle content change characteristics, determine whether the smelting reaction in the smelting furnace is in a sufficient state;

[0043] When the smelting reaction in the smelting furnace is not in a sufficient state, increase the feeding amount of coke into the smelting furnace; when the smelting reaction in the smelting furnace is in a sufficient state, suspend the feeding of coke into the smelting furnace.

[0044] Compared with the prior art, this method and system for regulating the feeding of ferromanganese-silicon alloy pre-treat manganese iron ore and silica, obtain fine manganese iron ore and silica powder, and mix them with quicklime to obtain spherical mixtures; screen the spherical mixtures that meet the preset morphological structure for preheating treatment, and based on the real-time preheating state characteristics of the spherical mixtures, adjust the feeding state of at least part of the preheated spherical mixtures into the smelting furnace; based on the feeding amount of the spherical mixtures in the smelting furnace, adjust the feeding state of coke into the smelting furnace; also based on the tail gas emission characteristics of the smelting furnace, identify the smelting reaction state in the smelting furnace, and thereby adjust the feeding state of coke into the smelting furnace again, so that each spherical mixture has a suitable proportion of material components and different materials are in full contact, ensuring that each spherical mixture can independently carry out the smelting reaction, and adaptively adjusting the feeding amounts of the spherical mixtures and coke, improving the smelting reaction efficiency and the output of ferromanganese-silicon alloy smelting.

[0045] Other features and advantages of the present invention will be set forth in the following description, and in part will be obvious from the description, or may be learned by practice of the present invention. The objectives and other advantages of the present invention may be realized and attained by the structure particularly pointed out in the written description, claims, as well as the drawings.

[0046] The technical solutions of the present invention will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0048] Figure 1 It is a schematic flowchart of the method for regulating the feeding of ferromanganese-silicon alloy provided by the present invention.

[0049] Figure 2 It is a schematic framework diagram of the system for regulating the feeding of ferromanganese-silicon alloy provided by the present invention. Detailed Embodiments

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0051] Refer to Figure 1 , which is a schematic flowchart of the method for regulating the feeding of ferromanganese-silicon alloy provided by the embodiments of the present invention. The method for regulating the feeding of ferromanganese-silicon alloy includes:

[0052] Step S1, preprocess the manganese iron ore and silica to obtain fine manganese iron ore and silica powder; mix the fine manganese iron ore, silica powder, and quicklime to obtain a spherical mixture;

[0053] Step S2, screen all the spherical mixtures to obtain spherical mixtures that meet the preset morphological structure; preheat the spherical mixtures that meet the preset morphological structure to obtain the real-time preheating state characteristics of the spherical mixtures;

[0054] Step S3: Based on the real-time preheating state characteristics, adjust the feeding state of at least part of the preheated spherical mixture to the smelting furnace; based on the feeding amount of the spherical mixture in the smelting furnace, adjust the feeding state of coke to the smelting furnace.

[0055] Step S4: Based on the tail gas emission characteristics of the smelting furnace, identify the smelting reaction state in the smelting furnace, and thereby adjust the feeding state of coke to the smelting furnace again.

[0056] The beneficial effects of the above technical solution are as follows: The feeding regulation method for ferromanganese-silicon alloy smelting pre-treats manganese iron ore and silica to obtain fine manganese iron ore and silica powder, and mixes them with quicklime to obtain a spherical mixture; screens the spherical mixture that meets the preset morphological structure for preheating treatment, and based on the real-time preheating state characteristics of the spherical mixture, adjusts the feeding state of at least part of the preheated spherical mixture to the smelting furnace; based on the feeding amount of the spherical mixture in the smelting furnace, adjusts the feeding state of coke to the smelting furnace; also based on the tail gas emission characteristics of the smelting furnace, identifies the smelting reaction state in the smelting furnace, and thereby adjusts the feeding state of coke to the smelting furnace again, so that each spherical mixture has a suitable proportion of material components and different materials are fully contacted, ensuring that each spherical mixture can independently carry out the smelting reaction, and adaptively adjusting the feeding amounts of the spherical mixture and coke, improving the smelting reaction efficiency and the output of ferromanganese-silicon alloy smelting.

[0057] Preferably, in step S1, pre-treat the manganese iron ore and silica to obtain fine manganese iron ore and silica powder; mix the fine manganese iron ore, silica powder, and quicklime to obtain a spherical mixture, including:

[0058] Respectively perform drying pre-treatment on the manganese iron ore and silica, and judge whether the manganese iron ore and silica meet the preset water content conditions; perform crushing pre-treatment on the manganese iron ore and silica that meet the preset water content conditions to obtain fine manganese iron ore and silica powder that meet the corresponding preset particle fineness conditions.

[0059] According to the preset weight ratio, uniformly mix the fine manganese iron ore, silica powder, and quicklime that meet the corresponding preset particle fineness conditions; perform pelletizing treatment on the uniformly mixed fine manganese iron ore, silica powder, and quicklime to obtain a spherical mixture.

[0060] The beneficial effects of the above technical solution are as follows: Manganese iron ore and silica are raw materials for smelting ferrosilicon manganese alloy. During the smelting process, it is necessary for manganese iron ore and silica to come into full contact to ensure the efficient progress of the smelting reaction. Generally speaking, manganese iron ore and silica have large particle shapes and relatively high water contents. If manganese iron ore and silica are directly put into the smelting furnace for smelting, not only can't manganese iron ore and silica come into full contact and react, but also the reduction efficiency of coke on manganese iron ore will be hindered due to the reaction of its own moisture with coke. Therefore, it is necessary to carry out drying pretreatment and crushing pretreatment on manganese iron ore and silica. Specifically, manganese iron ore and silica can be respectively subjected to hot air drying. By adjusting the hot air temperature and / or hot air speed of the hot air drying, and carrying out thermal infrared detection on manganese iron ore and silica during the drying pretreatment to obtain the actual water contents of manganese iron ore and silica. If the actual water content is lower than the preset water content threshold, it is judged that manganese iron ore and silica meet the preset water content condition; otherwise, it is judged that manganese iron ore and silica do not meet the preset water content condition. At this time, the hot air temperature and / or hot air speed of the hot air drying can be increased to quickly realize the dehydration drying efficiency of manganese iron ore and silica. When manganese iron ore and silica meet the preset water content condition, they are subjected to crushing pretreatment, such as impact crushing and fine grinding treatment on manganese iron ore and silica until manganese iron ore and silica are crushed into manganese iron ore fines and silica powder with a particle fineness smaller than the preset particle fineness threshold, which can increase the surface areas of the manganese iron ore fines and silica powder. The above-mentioned manganese iron ore fines, silica powder and quicklime are put into a stirring device according to a preset weight ratio for full and uniform mixing; then the uniformly mixed manganese iron ore fines, silica powder and quicklime are put into a briquetting device for briquetting and forming treatment to obtain a number of spherical mixtures; among them, quicklime is used as a flux, which can improve the melting efficiency of manganese iron ore fines and silica powder in the smelting furnace. Each spherical mixture contains a suitable weight ratio of manganese iron ore fines, silica powder and quicklime, so that each spherical mixture can serve as an independent smelting reaction unit. As long as the spherical mixture is placed in the high-temperature environment inside the smelting furnace and sufficient coke is provided, it can ensure that the manganese iron ore fines and silica powder in each spherical mixture undergo an efficient reduction reaction.

[0061] Preferably, in step S2, all spherical mixtures are subjected to screening treatment to obtain spherical mixtures that meet the preset morphological structure; the spherical mixtures that meet the preset morphological structure are subjected to preheating treatment to obtain the real-time preheating state characteristics of the spherical mixtures, including:

[0062] All spherical mixtures are transferred to a conveyor belt for dynamic size and structure screening treatment to obtain spherical mixtures that meet the preset ball diameter size and spherical surface integrity;

[0063] The spherical mixture that meets the preset ball diameter size and spherical surface integrity is transferred to a rotary kiln for dynamic preheating treatment, and the spherical mixture in the rotary kiln is subjected to thermal infrared detection to obtain the real-time preheating state characteristics of each spherical mixture in the rotary kiln; wherein, the real-time preheating state characteristics include the global temperature size distribution characteristics of each spherical mixture.

[0064] The beneficial effects of the above technical solution are as follows: During the pelletizing process of the uniform mixture of fine manganese iron ore, silica powder and quicklime, due to factors such as the action intensity of the pelletizing process or the viscosity of the material itself, there are differences in the shape size and structural firmness of different spherical mixtures obtained by pelletizing. Among them, some spherical mixtures are too small in size to ensure the effective reduction of the spherical mixture inside the smelting furnace to form ferrosilicon alloy, or some of the spherical mixtures are prone to dispersion due to their poor structural firmness, resulting in the inability of the spherical mixture to maintain its original spherical structure in the high-temperature environment inside the smelting furnace, making the fine manganese iron ore and silica powder unable to fully contact and affecting the reduction reaction efficiency. In order to ensure the reaction efficiency of the spherical mixture in the smelting furnace, first transfer all the spherical mixtures to the conveyor belt and perform dynamic size and structure screening treatment on the spherical mixtures on the conveyor belt. For example, size screening equipment and visual recognition equipment set on the conveyor belt can be used to screen out the spherical mixtures that meet the preset ball diameter size and surface integrity; the preset ball diameter size can be, but is not limited to, greater than or equal to the preset ball diameter size threshold, and the surface integrity can be, but is not limited to, the ratio between the area of the region where the surface of the spherical mixture is in a crack-free and complete state and the total surface area, and only when the surface integrity of the spherical mixture exceeds the preset integrity threshold, the corresponding spherical mixture is selected for smelting. In addition, the spherical mixture that meets the preset ball diameter size and spherical surface integrity is transferred to a rotary kiln for dynamic preheating treatment. The rotary kiln can rotate and preheat the spherical mixture inside it at the same time, so that all the spherical mixtures can be uniformly preheated to the maximum extent. At the same time, during the preheating process, the spherical mixture in the rotary kiln is subjected to thermal infrared detection to obtain the global temperature size distribution characteristics of each spherical mixture in the rotary kiln, so as to determine the actual temperature of each spherical mixture after preheating treatment, ensuring that only when the actual temperature of the spherical mixture is high enough is it put into the smelting furnace, improving the smelting reaction efficiency of the spherical mixture.

[0065] Preferably, in step S3, based on the real-time preheating state characteristics, adjust the feeding state of at least part of the preheated spherical mixture to the smelting furnace; based on the feeding amount of the spherical mixture in the smelting furnace, adjust the feeding state of coke to the smelting furnace, including:

[0066] Based on the global temperature size distribution characteristics of each spherical mixture included in the real-time preheating state characteristics, locate the spherical mixtures that meet the preset preheating conditions, and thereby adjust the feeding amount of the spherical mixtures that meet the preset preheating conditions from the spherical mixtures to the smelting furnace;

[0067] Based on the feeding amount of the spherical mixtures in the smelting furnace, estimate the amount of coke required for the spherical mixtures in the smelting furnace to fully react; based on the required amount of coke and the temperature change state inside the smelting furnace, adjust the feeding rate of the coke into the smelting furnace.

[0068] The beneficial effects of the above technical solutions are as follows: The spherical mixtures need to undergo a reduction reaction with coke inside the smelting furnace to achieve the smelting of ferromanganese silicon alloy, and the smelting furnace is used to provide a high-temperature environment for the reduction reaction. When the spherical mixtures with relatively low self-temperatures and in a non-molten state are directly put into the smelting furnace, the self-temperatures of the spherical mixtures are not sufficient to cause the reduction reaction. At the same time, the spherical mixtures will absorb the heat inside the smelting furnace, causing heat damage to the smelting furnace and making it unable to maintain the high-temperature environment to support the reduction reaction. It can be seen that the real-time preheating state of the spherical mixtures directly affects their reduction reaction efficiency inside the smelting furnace. Therefore, it is necessary to transfer the spherical mixtures with relatively high temperatures after preheating treatment into the smelting furnace. Specifically, based on the global temperature size distribution characteristics of each spherical mixture included in the real-time preheating state characteristics, identify the spherical mixtures that are uniformly heated as a whole and whose global temperature exceeds the preset temperature threshold, thereby calibrating that the above spherical mixtures meet the preset preheating conditions. Then, according to the weights of all the spherical mixtures that meet the preset preheating conditions, adjust the feeding amount of the spherical mixtures that meet the preset preheating conditions from the spherical mixtures to the smelting furnace, so that the smelting furnace can obtain as many spherical mixtures that meet the preset preheating conditions as possible under its actual internal heating conditions, ensuring that as much ferromanganese silicon alloy as possible is generated in a single smelting reaction in the smelting furnace. Also, based on the feeding amount of the spherical mixtures in the smelting furnace, estimate the amount of coke required for the spherical mixtures in the smelting furnace to fully react, and in combination with the temperature change state inside the smelting furnace, adjust the feeding rate of the coke into the smelting furnace to ensure that sufficient coke is obtained in time inside the smelting furnace for the reduction reaction.

[0069] Preferably, in step S4, based on the tail gas emission characteristics of the smelting furnace, identify the smelting reaction state inside the smelting furnace, and thereby adjust the feeding state of the coke into the smelting furnace again, including:

[0070] Conduct dynamic detection of the temperature and composition of the tail gas emitted by the smelting furnace to obtain the temperature change characteristics of the tail gas emitted by the smelting furnace and the change characteristics of the tail gas soot particle content; based on the temperature change characteristics of the tail gas and the change characteristics of the tail gas soot particle content, judge whether the smelting reaction inside the smelting furnace is in a sufficient state;

[0071] When the smelting reaction in the smelting furnace is not in a sufficient state, increase the coke feed rate to the smelting furnace; when the smelting reaction in the smelting furnace is in a sufficient state, suspend the coke feeding to the smelting furnace.

[0072] The beneficial effects of the above technical solution are as follows: When the reduction reaction inside the smelting furnace is insufficient, a large amount of high-temperature flue gas will be formed inside the smelting furnace and discharged to the outside along with the tail gas. At this time, the spherical mixture cannot be thoroughly reduced inside the smelting furnace, resulting in a high impurity content in the finally produced ferromanganese-silicon alloy, thus affecting the quality of the ferromanganese-silicon alloy. In order to reduce the impurity content of the ferromanganese-silicon alloy, the temperature and composition of the tail gas discharged from the smelting furnace are dynamically detected to obtain the change characteristics of the tail gas temperature and the change characteristics of the tail gas dust particle content discharged from the smelting furnace. If the change characteristics of the tail gas temperature indicate that the tail gas temperature is higher than the preset temperature threshold and / or the change characteristics of the tail gas dust particle content indicate that the dust particle content is higher than the preset content threshold, it is determined that the smelting reaction in the smelting furnace is insufficient; otherwise, it is determined that the smelting reaction in the smelting furnace is sufficient. When the smelting reaction in the smelting furnace is not in a sufficient state, increase the coke feed rate to the smelting furnace to improve the reduction reaction efficiency inside the smelting furnace; when the smelting reaction in the smelting furnace is in a sufficient state, suspend the coke feeding to the smelting furnace, thereby saving coke consumption.

[0073] Refer to Figure 2 , which is a schematic framework diagram of the ferromanganese-silicon alloy smelting feed regulation system provided by an embodiment of the present invention. The ferromanganese-silicon alloy smelting feed regulation system includes:

[0074] A pretreatment module for pretreating manganese iron ore and silica to obtain fine manganese iron ore and silica powder;

[0075] A mixing and forming module for mixing fine manganese iron ore, silica powder, and quicklime to obtain a spherical mixture;

[0076] A screening module for screening all spherical mixtures to obtain spherical mixtures that meet the preset morphological structure;

[0077] A preheating treatment and monitoring module for preheating the spherical mixtures that meet the preset morphological structure to obtain the real-time preheating state characteristics of the spherical mixtures;

[0078] A mixture feed adjustment module for adjusting the feed state of at least part of the preheated spherical mixtures to the smelting furnace based on the real-time preheating state characteristics;

[0079] A coke feed initial adjustment module for adjusting the feed state of coke to the smelting furnace based on the feed amount of the spherical mixtures in the smelting furnace;

[0080] The coke feeding secondary adjustment module is used to identify the smelting reaction state in the smelting furnace based on the tail gas emission characteristics of the smelting furnace, and thereby readjust the coke feeding state to the smelting furnace.

[0081] The beneficial effects of the above technical solution are as follows: The manganese-silicon alloy smelting feeding control system pre-treats manganese iron ore and silica, obtains fine manganese iron ore and silica powder, and mixes them with quicklime to obtain a spherical mixture; screens the spherical mixtures that meet the preset morphological structure for preheating treatment, and adjusts the feeding state of at least part of the preheated spherical mixtures to the smelting furnace based on the real-time preheating state characteristics of the spherical mixtures; adjusts the coke feeding state to the smelting furnace based on the feeding amount of the spherical mixtures in the smelting furnace; also identifies the smelting reaction state in the smelting furnace based on the tail gas emission characteristics of the smelting furnace, and thereby readjusts the coke feeding state to the smelting furnace, so that each spherical mixture has a suitable proportion of material components and different materials are in full contact, ensuring that each spherical mixture can independently carry out the smelting reaction, and adaptively adjusting the feeding amounts of the spherical mixtures and coke, improving the smelting reaction efficiency and the output of manganese-silicon alloy smelting.

[0082] Preferably, the pre-treatment module is used to pre-treat manganese iron ore and silica to obtain fine manganese iron ore and silica powder, including:

[0083] Respectively perform drying pre-treatment on manganese iron ore and silica, and judge whether manganese iron ore and silica meet the preset water content conditions; perform crushing pre-treatment on the manganese iron ore and silica that meet the preset water content conditions to obtain fine manganese iron ore and silica powder that meet the corresponding preset particle fineness conditions;

[0084] The mixing and forming module is used to mix fine manganese iron ore, silica powder, and quicklime to obtain a spherical mixture, including:

[0085] Uniformly mix the fine manganese iron ore, silica powder, and quicklime that meet the corresponding preset particle fineness conditions according to the preset weight ratio; perform briquetting treatment on the uniformly mixed fine manganese iron ore, silica powder, and quicklime to obtain a spherical mixture.

[0086] The beneficial effects of the above technical solution are as follows: Manganese iron ore and silica are raw materials for smelting ferromanganese silicon alloy. During the smelting process, it is necessary for manganese iron ore and silica to come into full contact to ensure the efficient progress of the smelting reaction. Generally speaking, manganese iron ore and silica have large particle forms and relatively high water contents. If manganese iron ore and silica are directly put into the smelting furnace for smelting, not only can't manganese iron ore and silica come into full contact and react, but also the reduction efficiency of coke on manganese iron ore will be hindered due to the reaction of its own moisture with coke. Therefore, it is necessary to carry out drying pretreatment and crushing pretreatment on manganese iron ore and silica. Specifically, manganese iron ore and silica can be respectively subjected to hot air drying. By adjusting the hot air temperature and / or hot air speed of the hot air drying, and carrying out thermal infrared detection on manganese iron ore and silica during the drying pretreatment to obtain the actual water contents of manganese iron ore and silica. If the actual water content is lower than the preset water content threshold, it is judged that manganese iron ore and silica meet the preset water content condition; otherwise, it is judged that manganese iron ore and silica do not meet the preset water content condition. At this time, the hot air temperature and / or hot air speed of the hot air drying can be increased to quickly achieve the dehydration drying efficiency of manganese iron ore and silica. When manganese iron ore and silica meet the preset water content condition, they are subjected to crushing pretreatment, such as impact crushing and fine grinding treatment on manganese iron ore and silica until the crushed manganese iron ore and silica have fine manganese iron ore and silica powder with a particle fineness smaller than the preset particle fineness threshold, which can increase the surface areas of the fine manganese iron ore and silica powder. The above-mentioned fine manganese iron ore, silica powder and quicklime are put into a stirring device according to a preset weight ratio for full and uniform mixing; then the uniformly mixed fine manganese iron ore, silica powder and quicklime are put into a briquetting device for briquetting and forming treatment to obtain a number of spherical mixtures; among them, quicklime is used as a flux, which can improve the melting efficiency of fine manganese iron ore and silica powder in the smelting furnace. Each spherical mixture contains an appropriate weight ratio of fine manganese iron ore, silica powder and quicklime, so that each spherical mixture can be used as an independent smelting reaction unit. As long as the spherical mixture is placed in the high-temperature environment inside the smelting furnace and sufficient coke is provided, it can ensure that the fine manganese iron ore and silica powder in each spherical mixture undergo an efficient reduction reaction.

[0087] Preferably, the screening module is used to screen all spherical mixtures to obtain spherical mixtures that meet the preset morphological structure, including:

[0088] Transfer all spherical mixtures to a conveyor belt for dynamic size and structure screening treatment to obtain spherical mixtures that meet the preset ball diameter size and spherical surface integrity;

[0089] The preheating treatment and monitoring module is used to preheat the spherical mixtures that meet the preset morphological structure to obtain the real-time preheating state characteristics of the spherical mixtures, including:

[0090] Transfer the spherical mixture that meets the preset ball diameter size and spherical surface integrity to a rotary kiln for dynamic preheating treatment, and perform thermal infrared detection on the spherical mixture in the rotary kiln to obtain the real-time preheating state characteristics of each spherical mixture in the rotary kiln; wherein, the real-time preheating state characteristics include the global temperature size distribution characteristics of each spherical mixture.

[0091] The beneficial effects of the above technical solution are as follows: During the pelletizing process of the uniform mixture of fine manganese iron ore, silica powder, and quicklime, due to factors such as the action intensity of the pelletizing process or the viscosity of the material itself, the different spherical mixtures obtained by the pelletizing process vary in terms of shape size and structural firmness. Some of the spherical mixtures are too small to ensure the effective reduction of the spherical mixture inside the smelting furnace to form ferrosilicon alloy, or some of the spherical mixtures are prone to spreading due to their poor structural firmness, resulting in the inability of the spherical mixture to maintain its original spherical structure under the high-temperature environment in the smelting furnace, making the fine manganese iron ore and silica powder unable to come into full contact and affecting the reduction reaction efficiency. To ensure the reaction efficiency of the spherical mixture in the smelting furnace, first transfer all the spherical mixtures to a conveyor belt and perform dynamic size and structure screening treatment on the spherical mixtures on the conveyor belt. For example, size screening equipment and visual recognition equipment set on the conveyor belt can be used to screen out the spherical mixtures that meet the preset ball diameter size and surface integrity; the preset ball diameter size can be, but is not limited to, greater than or equal to the preset ball diameter size threshold, and the surface integrity can be, but is not limited to, the ratio between the area of the region where the surface of the spherical mixture is in a crack-free and complete state and the total surface area, and only when the surface integrity of the spherical mixture exceeds the preset integrity threshold, the corresponding spherical mixture is selected for smelting. Additionally, transfer the spherical mixture that meets the preset ball diameter size and spherical surface integrity to a rotary kiln for dynamic preheating treatment. The rotary kiln can perform rotational movement while preheating the spherical mixture inside it, so as to uniformly preheat all the spherical mixtures to the maximum extent. At the same time, perform thermal infrared detection on the spherical mixture in the rotary kiln during the preheating process to obtain the global temperature size distribution characteristics of each spherical mixture in the rotary kiln, thereby determining the actual temperature representation of each spherical mixture after preheating treatment, ensuring that only when the actual temperature of the spherical mixture is high enough is it put into the smelting furnace, improving the smelting reaction efficiency of the spherical mixture.

[0092] Preferably, the mixture feed adjustment module is used to adjust the feeding state of at least part of the preheated spherical mixture to the smelting furnace based on the real-time preheating state characteristics, including:

[0093] Based on the global temperature size distribution characteristics of each spherical mixture included in the real-time preheating state characteristics, locate the spherical mixtures that meet the preset preheating conditions, and thereby adjust the feeding amount of the spherical mixtures that meet the preset preheating conditions to the smelting furnace;

[0094] The coke feeding initial adjustment module is used to adjust the coke feeding state to the smelting furnace based on the feeding amount of the spherical mixture in the smelting furnace, including:

[0095] Estimate the amount of coke required for the full reaction of the spherical mixture in the smelting furnace based on the feeding amount of the spherical mixture in the smelting furnace; adjust the feeding rate of the coke to the smelting furnace based on the required amount of coke and the temperature change state in the smelting furnace.

[0096] The beneficial effects of the above technical solution are as follows: The spherical mixture needs to undergo a reduction reaction with coke inside the smelting furnace to achieve the smelting of ferromanganese silicon alloy, and the smelting furnace is used to provide a high-temperature environment for the reduction reaction. When the spherical mixture with a relatively low temperature and in a non-molten state is directly put into the smelting furnace, the temperature of the spherical mixture itself is not sufficient to cause the reduction reaction. At the same time, the spherical mixture will absorb the heat inside the smelting furnace, causing heat damage to the smelting furnace and making it unable to maintain the high-temperature environment to support the reduction reaction. It can be seen that the real-time preheating state of the spherical mixture directly affects the reduction reaction efficiency inside the smelting furnace. Therefore, it is necessary to transfer the spherical mixture with a relatively high temperature after preheating treatment into the smelting furnace. Specifically, based on the global temperature size distribution characteristics of each spherical mixture included in the real-time preheating state characteristics, identify the spherical mixture that is uniformly heated as a whole and whose global temperature exceeds the preset temperature threshold, so as to calibrate that the above spherical mixture meets the preset preheating conditions. Then, according to the weight of all the spherical mixtures that meet the preset preheating conditions, adjust the feeding amount of the spherical mixture that meets the preset preheating conditions to the smelting furnace, so that the smelting furnace can obtain as many spherical mixtures that meet the preset preheating conditions as possible under its actual internal heating conditions, ensuring that as much ferromanganese silicon alloy as possible is generated in a single smelting reaction in the smelting furnace. Also, based on the feeding amount of the spherical mixture in the smelting furnace, estimate the amount of coke required for the full reaction of the spherical mixture in the smelting furnace, and combine with the temperature change state in the smelting furnace to adjust the feeding rate of the coke to the smelting furnace, ensuring that sufficient coke is obtained in time inside the smelting furnace for the reduction reaction.

[0097] Preferably, the coke feeding secondary adjustment module is used to identify the smelting reaction state in the smelting furnace based on the tail gas emission characteristics of the smelting furnace, so as to adjust the coke feeding state to the smelting furnace again, including:

[0098] Conduct dynamic detection of the temperature and composition of the tail gas emitted by the smelting furnace to obtain the temperature change characteristics of the tail gas emitted by the smelting furnace and the change characteristics of the tail gas soot particle content; based on the temperature change characteristics of the tail gas and the change characteristics of the tail gas soot particle content, judge whether the smelting reaction in the smelting furnace is in a sufficient state;

[0099] When the smelting reaction in the smelting furnace is not in a sufficient state, increase the coke feed rate to the smelting furnace; when the smelting reaction in the smelting furnace is in a sufficient state, suspend the coke feeding to the smelting furnace.

[0100] The beneficial effects of the above technical solution are as follows: When the reduction reaction in the smelting furnace is insufficient, a large amount of high-temperature flue gas will be formed inside the smelting furnace and discharged to the outside along with the tail gas. At this time, the spherical mixture cannot be completely reduced inside the smelting furnace, resulting in a high impurity content in the finally produced ferromanganese-silicon alloy, thus affecting the quality of the ferromanganese-silicon alloy. In order to reduce the impurity content of the ferromanganese-silicon alloy, the temperature and composition of the tail gas discharged from the smelting furnace are dynamically detected to obtain the temperature change characteristics of the tail gas discharged from the smelting furnace and the change characteristics of the tail gas soot particle content. If the temperature change characteristics of the tail gas indicate that the tail gas temperature is higher than the preset temperature threshold and / or the change characteristics of the tail gas soot particle content indicate that the soot particle content is higher than the preset content threshold, it is determined that the smelting reaction in the smelting furnace is insufficient; otherwise, it is determined that the smelting reaction in the smelting furnace is sufficient. When the smelting reaction in the smelting furnace is not in a sufficient state, increase the coke feed rate to the smelting furnace to improve the reduction reaction efficiency inside the smelting furnace; when the smelting reaction in the smelting furnace is in a sufficient state, suspend the coke feeding to the smelting furnace, thereby saving coke consumption.

[0101] As can be seen from the content of the above embodiments, the ferromanganese-silicon alloy smelting feed regulation method and system pre-treat manganese iron ore and silica to obtain fine manganese iron ore and silica powder, and mix them with quicklime to obtain a spherical mixture; screen the spherical mixture that meets the preset morphological structure for preheating treatment, and based on the real-time preheating state characteristics of the spherical mixture, adjust the feeding state of at least part of the preheated spherical mixture to the smelting furnace; based on the feeding amount of the spherical mixture in the smelting furnace, adjust the feeding state of coke to the smelting furnace; also based on the tail gas emission characteristics of the smelting furnace, identify the smelting reaction state in the smelting furnace, and thus adjust the feeding state of coke to the smelting furnace again, so that each spherical mixture has a suitable proportion of material components and different materials are in full contact, ensuring that each spherical mixture can independently carry out the smelting reaction, and adaptively adjusting the feeding amounts of the spherical mixture and coke to improve the smelting reaction efficiency and the output of ferromanganese-silicon alloy smelting.

[0102] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A method for regulating and controlling feed in smelting manganese silicon alloy, characterized in that: It includes the following steps: Step S1, pre-treating ferromanganese ore and silica to obtain ferromanganese ore fine material and silica powder; mixing the ferromanganese ore fine material, silica powder and quicklime to obtain a spherical mixture; Step S2, screening all the spherical mixtures to obtain spherical mixtures that meet the preset morphological structure; preheating the spherical mixtures that meet the preset morphological structure to obtain real-time preheating state characteristics of the spherical mixtures; Step S3, adjusting the feeding state of at least a portion of the preheated spherical mixture into the smelting furnace based on the real-time preheating state characteristics; adjusting a feeding state of coke into the smelting furnace based on a feeding amount of the spherical mixture into the smelting furnace; Step S4, based on the exhaust emission characteristics of the smelting furnace, identifying the smelting reaction state in the smelting furnace, thereby adjusting the feeding state of coke to the smelting furnace again.

2. The method for regulating and controlling the feed of manganese silicon alloy smelting according to claim 1, characterized in that: In the step S1, ferromanganese ore and silica are pretreated to obtain ferromanganese ore fines and silica powder; The ferromanganese ore fine material, silica powder and quicklime are mixed to obtain a spherical mixture, comprising: Performing drying pretreatment on the ferromanganese ore and silica respectively to determine whether the ferromanganese ore and silica meet the preset moisture content conditions; performing crushing pretreatment on the ferromanganese ore and silica that meet the preset moisture content conditions to obtain ferromanganese ore fine material and silica powder that meet the corresponding preset particle fineness conditions; According to a preset weight ratio, the ferromanganese ore fine material, silica powder and quicklime that meet the corresponding preset particle fineness conditions are uniformly mixed; the ferromanganese ore fine material, silica powder and quicklime that are uniformly mixed are ball-pressed to obtain a spherical mixture.

3. The method for controlling feed material for smelting manganese silicon alloy according to claim 1, characterized in that: In step S2, all the spherical mixtures are screened to obtain spherical mixtures that meet the preset morphological structure; The spherical mixture meeting the preset morphological structure is preheated to obtain the real-time preheating state characteristics of the spherical mixture, including: Transfer all the spherical mixtures to a conveyor belt for dynamic size and structure screening to obtain a spherical mixture that meets the preset spherical diameter size and spherical surface integrity; The spherical mixture that meets the preset spherical diameter size and spherical surface integrity is transferred to a rotary kiln for dynamic preheating treatment, and the spherical mixture in the rotary kiln is subjected to thermal infrared detection to obtain real-time preheating state characteristics of all the spherical mixtures in the rotary kiln; wherein the real-time preheating state characteristics include global temperature size distribution characteristics of each spherical mixture.

4. The method for regulating and controlling the feed of manganese silicon alloy smelting according to claim 1, characterized in that: In the step S3, based on the real-time preheating state characteristics, the feeding state of at least part of the preheated spherical mixture into the smelting furnace is adjusted; Adjusting the feeding state of coke into the smelting furnace based on the feeding amount of the spherical mixture into the smelting furnace comprises: Based on the global temperature size distribution characteristics of each spherical mixture included in the real-time preheating state characteristics, the spherical mixture that meets the preset preheating conditions is located, thereby adjusting the feeding amount of the spherical mixture that meets the preset preheating conditions to the smelting furnace; Based on the feed amount of the spherical mixture to the smelting furnace, the amount of coke required for the spherical mixture in the smelting furnace to fully react is estimated; based on the required amount of coke and the temperature change state in the smelting furnace, the feed rate of coke to the smelting furnace is adjusted.

5. The method for regulating and controlling the feed of manganese silicon alloy smelting according to claim 1, characterized in that: In the step S4, based on the tail gas emission characteristics of the smelting furnace, the smelting reaction state in the smelting furnace is identified, so as to adjust the feeding state of coke to the smelting furnace again, including: Dynamically detecting the temperature and composition of the tail gas emitted by the smelting furnace to obtain the temperature change characteristics of the tail gas emitted by the smelting furnace and the change characteristics of the tail gas smoke particle content; judging whether the smelting reaction in the smelting furnace is in a sufficient state based on the tail gas temperature change characteristics and the tail gas smoke particle content change characteristics; When the smelting reaction in the smelting furnace is not in a sufficient state, the amount of coke fed into the smelting furnace is increased; when the smelting reaction in the smelting furnace is in a sufficient state, the feeding of coke into the smelting furnace is suspended.

6. Manganese silicon alloy smelting feed control system, characterized in that: include: A pretreatment module is used to pretreat the ferromanganese ore and silica to obtain ferromanganese ore fines and silica powder; A mixing and forming module is used to mix the manganese iron ore fine material, silica powder and quicklime to obtain a spherical mixture; A screening module is used to screen all spherical mixtures to obtain spherical mixtures that meet a preset morphological structure; A preheating treatment and monitoring module, used to perform preheating treatment on the spherical mixture meeting the preset morphological structure, and obtain the real-time preheating state characteristics of the spherical mixture; A mixture feed adjustment module, used for adjusting the feeding state of at least part of the preheated spherical mixture into the smelting furnace based on the real-time preheating state characteristics; a coke feed initial adjustment module, used for adjusting the feeding state of coke into the smelting furnace based on the feeding amount of the spherical mixture into the smelting furnace; The coke feed secondary adjustment module is used to identify the smelting reaction state in the smelting furnace based on the tail gas emission characteristics of the smelting furnace, so as to adjust the feeding state of coke to the smelting furnace again.

7. The manganese silicon alloy smelting feed control system according to claim 6, characterized in that: The pretreatment module is used to pretreat ferromanganese ore and silica to obtain ferromanganese ore fine material and silica powder, including: Performing drying pretreatment on the ferromanganese ore and silica respectively to determine whether the ferromanganese ore and silica meet the preset moisture content conditions; performing crushing pretreatment on the ferromanganese ore and silica that meet the preset moisture content conditions to obtain ferromanganese ore fine material and silica powder that meet the corresponding preset particle fineness conditions; The mixing and forming module is used to mix the manganese iron ore fine material, silica powder and quicklime to obtain a spherical mixture, including: According to a preset weight ratio, the ferromanganese ore fine material, silica powder and quicklime that meet the corresponding preset particle fineness conditions are uniformly mixed; the ferromanganese ore fine material, silica powder and quicklime that are uniformly mixed are ball-pressed to obtain a spherical mixture.

8. The manganese silicon alloy smelting feed control system according to claim 6, characterized in that: The screening module is used to screen all spherical mixtures to obtain spherical mixtures that meet the preset morphological structure, including: Transfer all the spherical mixtures to a conveyor belt for dynamic size and structure screening to obtain a spherical mixture that meets the preset spherical diameter size and spherical surface integrity; The preheating treatment and monitoring module is used to perform preheating treatment on the spherical mixture that meets the preset morphological structure to obtain the real-time preheating state characteristics of the spherical mixture, including: The spherical mixture that meets the preset spherical diameter size and spherical surface integrity is transferred to a rotary kiln for dynamic preheating treatment, and the spherical mixture in the rotary kiln is subjected to thermal infrared detection to obtain real-time preheating state characteristics of all the spherical mixtures in the rotary kiln; wherein the real-time preheating state characteristics include global temperature size distribution characteristics of each spherical mixture.

9. The manganese silicon alloy smelting feed control system according to claim 6, characterized in that: The mixture feed adjustment module is used to adjust the feeding state of at least part of the preheated spherical mixture into the smelting furnace based on the real-time preheating state characteristics, including: Based on the global temperature size distribution characteristics of each spherical mixture included in the real-time preheating state characteristics, the spherical mixture that meets the preset preheating conditions is located, thereby adjusting the feeding amount of the spherical mixture that meets the preset preheating conditions to the smelting furnace; The coke feed initial adjustment module is used to adjust the feeding state of coke to the smelting furnace based on the feeding amount of the spherical mixture of the smelting furnace, including: Based on the feed amount of the spherical mixture to the smelting furnace, the amount of coke required for the spherical mixture in the smelting furnace to fully react is estimated; based on the required amount of coke and the temperature change state in the smelting furnace, the feed rate of coke to the smelting furnace is adjusted.

10. The manganese silicon alloy smelting feed control system according to claim 6, characterized in that: The coke feed secondary adjustment module is used to identify the smelting reaction state in the smelting furnace based on the tail gas emission characteristics of the smelting furnace, so as to adjust the feeding state of coke to the smelting furnace again, including: Dynamically detecting the temperature and composition of the tail gas emitted by the smelting furnace to obtain the temperature change characteristics of the tail gas emitted by the smelting furnace and the change characteristics of the tail gas smoke particle content; judging whether the smelting reaction in the smelting furnace is in a sufficient state based on the tail gas temperature change characteristics and the tail gas smoke particle content change characteristics; When the smelting reaction in the smelting furnace is not in a sufficient state, the amount of coke fed into the smelting furnace is increased; when the smelting reaction in the smelting furnace is in a sufficient state, the feeding of coke into the smelting furnace is suspended.

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