Sectional feeding high-temperature melting control method and device

Abstract

The invention provides a sectional feeding high-temperature melting control method and device, the method comprises the steps of parameter presetting, first-stage melting, second-stage melting, third-stage melting and abnormity adjustment, the melting process is divided into multiple stages, and the melting temperature, the melting time and the input amount of raw materials are set in each stage according to the properties of the raw materials; each melting raw material is ensured to be melted under the optimal condition, so that the melting efficiency is remarkably improved, the energy consumption is reduced, and the quality of a final product is improved. Meanwhile, by means of a multi-section heating raw material supplementing method of the high-temperature melting control device, the input amount of upper-stage and lower-stage melts and raw materials can be flexibly adjusted, it is ensured that the reaction conditions in all stages of molten pools are stable, and the melting furnace device is maintained to stably output the melts.

Description

Technical Field

[0001] The present invention relates to the field of high-temperature melting, and specifically to a high-temperature melting control method and device with segmented feeding. Background Art

[0002] In the field of high-temperature melting, traditional high-temperature melting devices often adopt a single melting pool design, which cannot feed materials midway, perform segmented melting, or adjust in real time, and has many deficiencies. For example, when raw materials of different materials are melted in a single melting pool, due to differences in melting temperature and melting time, it may lead to uneven melting, low melting efficiency, and even melting quality problems. In addition, the single melting pool design also makes the input and melting processes of raw materials lack flexibility and is difficult to meet complex and changing production requirements.

[0003] To solve these problems, the industry has begun to try to adopt a segmented high-temperature melting control device. However, there are still many deficiencies in the existing high-temperature melting control devices in terms of control methods. For example, key parameters such as the input amount of raw materials, melting temperature, and melting time are often set based on the experience of operators, lacking an accurate control system, resulting in an unstable melting process and difficult to guarantee the quality of the molten product. At the same time, when an abnormality occurs in the input of raw materials, the existing high-temperature melting control devices often lack an effective abnormality adjustment mechanism and cannot adjust the melting process in real time to ensure the stable output of the discharge pipe.

[0004] Therefore, the present invention proposes a high-temperature melting control method and device with segmented feeding, which can accurately control the input amount of raw materials, melting temperature, and melting time to meet complex and changing production requirements and improve melting efficiency and the quality of the melt. Summary of the Invention

[0005] In order to solve the above problems in the prior art, the purpose of the present invention is to provide a high-temperature melting control method and device with segmented feeding.

[0006] To achieve the above purpose, the solution provided by the present invention is as follows: A high-temperature melting control method with segmented feeding, comprising the following steps: Parameter presetting step: According to the material and input amount of the three-stage molten raw materials, set the melting temperature and melting time of each stage of the melting pool in the high-temperature melting control device, and set the opening degree of the regulating device; First-stage melting step: Put the first raw material into the first-stage melting pool from the first-stage feeding port, melt the first raw material according to the preset melting temperature and melting time to obtain the first-stage melting pool melt, and drain and introduce the first-stage melting pool melt into the second-stage melting pool; a secondary melting step, wherein a second raw material is fed into a secondary molten pool from a secondary feed port according to the properties of the primary molten mass, the second raw material is melted at the melting temperature of the primary molten mass and a preset melting temperature and melting time, and mixed with the primary molten pool molten mass, and the properties of the molten product are controlled in real time to obtain a secondary molten pool molten mass, and the secondary molten pool molten mass is drained into a tertiary molten pool; a tertiary melting step, wherein the third raw material is fed into the tertiary molten pool from the tertiary feed port according to the properties of the secondary molten mass, a complete melt is obtained by the melting temperature of the secondary molten mass and by melting and mixing with the molten mass in the secondary molten pool, and the complete melt is discharged from the discharge pipe; Abnormal adjustment step: when the raw material input or melt quality is abnormal, adjust the input amount of the upper melt and the raw material input amount to make the discharge pipe output the melt quality stably.

[0007] As a further improvement of the present invention, a fixed margin is retained when the molten material in the first-level molten pool, the second-level molten pool and the third-level molten pool is drained into the next level.

[0008] As a further improvement of the present invention, when the raw material input amount into each level of the molten pool of the high-temperature melting control device is higher than the preset input amount, an abnormal raw material input instruction is output, and the control system enters the abnormal adjustment step after receiving the abnormal raw material input instruction.

[0009] As a further improvement of the present invention, the abnormal adjustment step includes, when the abnormality is detected to be the primary melt pool, calculating and adjusting the melting time according to the actual raw material input amount and the preset raw material input amount, and adjusting the raw material input amount in the secondary melt pool; when the abnormality is detected to be the secondary melt pool and the tertiary melt pool, entering the proportioning step.

[0010] As a further improvement of the present invention, the proportioning step includes outputting a feeding and replenishing instruction or a discharging adjustment instruction according to the remaining amount of the upper melt. When the feeding and replenishing instruction is received, the raw materials are replenished and heated at the upper feed port; when the discharging adjustment instruction is received, the opening of the modulation device is calculated according to the mass of the melt entering the secondary melt pool, and the opening of the modulation device is adjusted to allow the upper melt raw material to flow into the abnormal melt pool.

[0011] As a further improvement of the present invention, the modulation device opening calculation configuration includes: ; Wherein, θ is the opening of the modulation device, m is the mass of the melt, ρ is the density of the melt, and T is the temperature of the melt.

[0012] As a further improvement of the present invention, it further includes a heating state detection step. Detection devices are respectively arranged in each stage of the molten pool. After the heating is completed, the detection devices detect the melting condition of the molten material in the furnace. When it is detected that the raw material is not completely melted, the melting time is calculated and set again, and the heating temperature is calculated and adjusted according to the extended melting time and the mass of the molten material.

[0013] As a further improvement of the present invention, when the primary molten mass enters the secondary molten pool, it still retains the melting temperature. When entering the abnormal adjustment, the secondary raw materials supplemented in the secondary molten pool are mixed with the primary molten mass, and melting is carried out through the melting temperature retained by the primary molten mass.

[0014] A high-temperature melting control device with segmented feeding includes: The furnace body, as the main structure of the entire furnace, provides the space and environment required for melting raw materials; The molten pool is arranged inside the furnace body and specifically includes a primary molten pool located at the top of the molten pool for initially melting raw materials; a secondary molten pool located in the middle of the molten pool for further melting raw materials and regulating the properties of the primary molten mass; a tertiary molten pool located at the bottom of the molten pool for the final melting of raw materials and regulating the properties of the secondary molten mass. The feeding ports are arranged above the molten pool and fixed on the furnace body for feeding raw materials, including a primary feeding port, a secondary feeding port, and a tertiary feeding port; The discharge port is fixedly connected to the tertiary molten pool and arranged at the bottom of the furnace body for discharging the molten mass after melting is completed; The modulation device is fixed to the edge of the molten pool through a connecting shaft for controlling the opening and closing of the molten pool and the diversion of the molten mass; The exhaust port is fixed on the furnace body facing the primary molten pool for discharging the molten waste gas generated by high-temperature melting.

[0015] The control system is used to control the temperature of the furnace, the input amount of raw materials, and the opening degree of the modulation device.

[0016] The beneficial effects of the present invention are: The present invention provides a high-temperature melting control method and device with segmented feeding. By dividing the melting process into multiple stages, the melting temperature, time, and the input amount of raw materials are respectively set according to the properties of the raw materials in each stage, ensuring that each molten raw material is melted under the best conditions, significantly improving the melting efficiency, reducing energy consumption, and improving the quality of the final product. At the same time, by setting the method of raw material supplementation with multi-stage heating in the high-temperature melting control device, the upper and lower molten materials and the input amount of raw materials can be flexibly adjusted, ensuring stable reaction conditions in each stage of the molten pool and maintaining stable output of the molten mass by the furnace device. Description of the Drawings

[0017] Figure 1 It is the process flow chart of the present invention.

[0018] Figure 2 It is the structural diagram of the device of the present invention.

[0019] Figure 3 It is the sectional view of the device of the present invention.

[0020] Annotation of the attached drawings: 1 - furnace body, 2 - molten pool, 21 - primary molten pool, 22 - secondary molten pool, 23 - tertiary molten pool, 3 - feed inlet, 31 - primary feed inlet, 32 - secondary feed inlet, 33 - tertiary feed inlet, 4 - discharge outlet, 5 - modulation device, 6 - exhaust port. Specific embodiments

[0021] The specific embodiments of the present invention will be described in detail below. It should be noted that the embodiments described here are only a part of the embodiments of the present invention, rather than all embodiments. Based on the following embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] An embodiment of the present invention provides a high-temperature melting control method with staged feeding, as Figure 1 shown, including the following steps: Parameter presetting step: According to the material and input amount of the tertiary molten raw materials, set the melting temperature and melting time of each stage of the molten pool in the high-temperature melting control device, and set the opening degree of the regulation device; for raw materials of different materials, considering their different melting points, thermal stability characteristics and melting times, different melting temperatures and melting times are set in the three-stage molten pool respectively to ensure that the raw materials in the furnace can be melted under the best conditions, improving the melting efficiency of the raw materials and the quality of the melt. Set the opening degree of the regulation device so that the upper-stage molten mass can be introduced into the lower-stage molten pool with different masses and speeds through the action of gravity according to the different opening degrees of the regulation device, thereby controlling the mass of the molten mass flowing into the lower-stage molten pool. Through precise adjustment of the opening degree of the regulation device, the molten mass in the upper-stage molten pool can be partially retained according to the demand when flowing into the lower stage, and the problem of uneven mixing caused by unstable input amount of the molten mass can be avoided through precise control.

[0023] In the first-level melting step, the first raw material is put into the first-level melting pool from the first-level feed port. Before the first raw material is put in, the melting temperature and melting time of the melting pool are set according to the mass of the first raw material to be put in and the physical properties of the first raw material, including melting point and density. The more raw materials there are, the more heat and time are required to achieve full melting. Therefore, the longer the melting time is set, the more it can ensure that a large amount of raw materials can be completely melted, avoiding the problem of some raw materials remaining unmelted due to insufficient time, affecting the subsequent process and the quality of the final product. The melting point of the raw material determines the required melting temperature. The higher the melting point of the raw material, the higher the melting temperature is set to provide sufficient energy to transform the raw material from solid to liquid. Moreover, for high-melting-point raw materials, not only the melting temperature needs to be increased, but also a longer time needs to be set for melting the raw material so that the heat can be fully transferred to the inside of the raw material to achieve complete melting. By accurately setting the melting temperature and melting time of the melting pool, the raw material melting efficiency is improved, and the adequacy and stability of the melting process are ensured. At this time, the modulation device is opened to a slope state according to the preset modulation device opening, and the diversion slope formed by the opening of the modulation device diverts the molten material of the first-level molten pool into the secondary molten pool: when the first raw material is successfully converted into the molten material of the first-level molten pool under the precisely set melting temperature and time, the modulation device is opened to a slope state through the preset modulation device opening to form a unique diversion slope, which can accurately and efficiently divert the molten material of the first-level molten pool into the secondary molten pool, and can achieve the beneficial effect of flexibly adjusting the flow rate and flow of the molten material according to actual production needs, thereby realizing precise material transfer.

[0024] In the secondary melting step, when the second raw material is put into the secondary melt pool from the secondary feed port, the melting operation is performed according to the preset melting temperature and melting time. When setting the melting temperature, the melting temperature is set according to the physical properties of the second raw material combined with the composition and physical state of the melt in the primary melt pool to ensure that the second raw material is fully melted under the optimal temperature environment.

[0025] In the tertiary melting step, the third raw material is fed into the tertiary melt pool from the tertiary feed port for melting and mixed with the molten material in the secondary melt pool to obtain a complete melt, which is then discharged from the discharge pipe. In the tertiary melting step, the melting temperature is set according to the physical properties of the third raw material and the molten material flowing out of the secondary melt pool to ensure that the third raw material is fully melted under the optimal temperature environment.

[0026] In the above three-stage melting step, the melting temperature settings are configured as follows: ; Among them, T f is the melting temperature, that is, the molten pool temperature we set to ensure that the raw materials can be melted in the best condition, T mThe melting point of the raw material, Q is the heating power, representing the amount of heat output by the furnace. This is the critical temperature at which the raw material changes from solid to liquid and is an important basic reference value for setting the melting temperature. m represents the mass of the raw material put into the melting pool. The amount of mass determines how much heat needs to be absorbed to achieve melting. The larger the mass, the more heat is required, c p is the specific heat capacity of the raw material. Since different materials have different specific heat capacities, under the same heating conditions, the temperature rise of different raw materials is different, that is, different melting temperatures need to be set. k is the thermal conductivity of the raw material, A is the surface area of the melting pool, T env is the ambient temperature, and d is the heat transfer coefficient, representing the heat transfer ability of the melting pool. Calculate the temperature rise caused by the increase in energy during the heating process according to the physical properties of the molten raw material; and calculate the temperature drop caused by the heat conduction energy loss according to its physical properties. Calculate the set value of the melting temperature of the melting pool by combining the melting point of the raw material with the temperature rise and fall during its melting process, which can fully consider various physical factors during the melting process of the raw material, ensure the most suitable melting temperature is set for each stage of the melting pool, thereby improving the efficiency and quality of raw material melting, and ensuring the stable operation of the control process of the entire high-temperature melting control device.

[0027] In the above three-stage melting steps, the melting time is configured as follows: ; Among them, is the additional melting time compensation due to energy loss, usually set manually after setting the melting temperature.

[0028] Abnormal adjustment steps: When an abnormality occurs in the raw material input, adjust the input amount of the upper-level melt and the raw material input amount to make the discharge pipe stably output the molten mass. By setting the melting temperature and melting time of each-level melting pool, and regulating the opening degree of the regulating device, it can ensure that the raw materials in each-level melting pool can be fully melted and mixed, thereby improving the melting efficiency and product quality. The abnormal raw material input is caused by various factors, such as feed equipment failure, raw material caking resulting in unsmooth transportation, quality differences between raw material supply batches, etc. Whatever the reason, once an abnormality is detected, the system will respond quickly. With the intelligent control system as the core, it will reasonably adjust the input amount of the upper-level melt according to the preset algorithm and real-time monitoring data. If the input amount of raw materials at a certain level is insufficient, the system will appropriately increase the inflow of the melt from the upper-level melting pool to maintain the relative stability of the total amount of substances in this-level melting pool and ensure that the melting reaction can continue. On the contrary, if too much raw material is input, the introduction of the upper-level melt will be reduced to avoid excessive accumulation of substances in the melting pool, which will affect the melting effect. Moreover, when there is a deviation in the raw material input, it will change the chemical composition and physical properties in the melting pool. At the same time, due to the change in proportion, it will affect the imbalance of the final molten mass ratio and the quality of the final product. Therefore, accurately adjusting the raw material input amount according to the real-time monitoring data and preset values can guarantee high melting efficiency and product quality.

[0029] Specifically, when the molten mass in the first-level melting pool, second-level melting pool, and third-level melting pool is drained and introduced into the next level, a fixed surplus is set to be retained. In the actual production scenario, the raw material input link may be interfered by various factors, such as mechanical failures of the feed equipment, batch differences in raw material supply, blockages in the conveying pipeline, etc., which result in abnormal raw material input. At this time, by leaving a surplus of molten mass in the melting pool, when an abnormality occurs in the raw material input, it can fill the gap caused by insufficient raw material supply and prevent the production from being directly interrupted; the fixed surplus also helps to buffer the fluctuations in raw material input and prevent parameters such as temperature and pressure in the melting pool from getting out of control due to sudden changes in the material input amount; by storing a small amount of molten mass in the melting pool, it can accelerate the melting speed of the newly added raw materials in the next melting process.

[0030] Specifically, when the input amount of raw materials input into each-level melting pool of the high-temperature melting control device is higher than the preset input amount, a raw material input abnormal instruction is output. After receiving the raw material input abnormal instruction, the control system enters the abnormal adjustment step.

[0031] Specifically, the abnormal adjustment step includes that when the detected abnormality is a primary molten pool, the melting time is calculated and adjusted according to the actual raw material input and the preset raw material input. When adjusting the melting time, the melting temperature is synchronously adjusted. Since the change in the raw material input will directly affect the heat conduction cooling temperature and the heating temperature rise, thus affecting the setting of the melting temperature. At the same time, in order to maintain the balance of substances and the stability of reactions within the entire furnace system, the control system will also adjust the raw material input in the secondary molten pool, that is, the secondary molten pool. The actual raw material input of the secondary raw material is adjusted according to the ratio of the original primary raw material to the secondary raw material based on the difference between the actual raw material input and the preset raw material input of the primary raw material, and the raw material input of the tertiary molten pool is adjusted again according to the adjustment situation.

[0032] When the detected abnormalities are the secondary molten pool and the tertiary molten pool, the proportioning step is entered. Specifically, the proportioning step includes outputting a feeding supplement instruction or a discharging adjustment instruction according to the remaining amount of the upper-level molten material. When the fixed remaining amount of the molten material in the upper-level molten pool is less than the input amount of the secondary or tertiary raw material, it means that even if all the remaining amount of the upper-level molten material flows into this level of molten pool, it cannot meet the requirement of balancing the molten material proportion. At this time, a feeding supplement instruction is output. When the control system receives the feeding supplement instruction, the upper feeding port replenishes the raw material until the input raw material amount and the fixed remaining amount of the upper-level molten material can be proportionally balanced with the abnormally input raw material amount, and at this time, the raw material input of the secondary molten pool is adjusted according to the ratio. When the fixed remaining amount of the molten material in the upper-level molten pool can meet the replenishment requirement, a discharging adjustment instruction is output at this time. When the control system receives the discharging adjustment instruction, the modulating device connected to the upper-level molten pool adjusts the opening degree of the modulating device according to the mass of the raw material added more in this level of molten pool and the proportion of the tertiary raw material in the molten material, so that the molten material in the upper-level molten pool flows into this level of molten pool according to the required mass, realizing the optimized adjustment of the material proportion in the abnormal molten pool and ensuring the stable operation of the entire furnace system.

[0033] Specifically, the opening degree calculation of the modulating device is configured as: ; Among them, θ is the opening degree of the modulation device. The modulation opening degree determines the speed and flow rate of the molten material in the upper molten pool flowing into the lower molten pool, thereby affecting the mixing ratio of substances and the reaction process in each molten pool. Therefore, there is a correlation between the modulation opening degree and the physical properties of the molten material. m is the mass of the molten substance. When the molten raw material increases or decreases, the corresponding generated molten substance will also increase or decrease. The greater the mass of the molten substance, the greater the positive feedback effect on the opening degree of the modulation device, and a larger opening degree needs to be adjusted. ρ is the density of the molten substance. The greater the density of the molten substance, the worse the fluidity of the molten substance, and at this time the flow velocity will be relatively slower. Therefore, the opening degree of the modulation device needs to be adjusted larger. T is the temperature of the molten substance. The level of the temperature will change the viscosity and surface tension of the molten substance and affect the fluidity of the molten substance. When the temperature rises, the viscosity of the molten substance decreases and the fluidity increases. When setting the opening degree of the modulation device, the opening degree of the modulation device decreases.

[0034] Specifically, it further includes a heating state detection step. Detection devices are respectively arranged in each molten pool. After the heating is completed, the detection devices detect the melting condition of the molten material in the furnace. When it is detected that the raw material is not completely melted, the melting time is calculated and set again, and the heating temperature is calculated and adjusted according to the extended melting time and the mass of the molten material. During the heating state detection process, the temperature sensors are used to measure the temperatures at different positions in the molten pool. When the raw material is not completely melted, there will be a temperature gradient in the molten pool. At this time, the temperature of the un-melted part is relatively low, and the temperature of the melted part is close to the melting temperature T f , by comparing the temperatures at each point in the molten pool with the melting point T of the raw material m and the expected melting temperature T f , it can be judged whether the raw material is completely melted. If it is detected that the temperature in a certain area of the pool is significantly lower than T f , and there is no obvious change for a continuous period of time, it means that the raw material in this area is not completely melted. At this time, the proportion of the incompletely melted raw material is calculated according to the proportion of the detected area of the incompletely melted raw material, and the original heating time can be calculated according to the proportion of the incompletely melted raw material to obtain the time for re-heating.

[0035] A high-temperature melting control device with segmented feeding includes: The furnace body 1, as the main structure of the entire furnace, provides the space and environment required for the molten raw material; The molten pool 2 is arranged inside the furnace body 1. As Figures 2 to 3 shown, specifically includes, The primary molten pool 21, located at the top of the molten pool 2, is used for initially melting the raw material; The secondary molten pool 2 is located in the middle of the molten pool 2 and is used for further melting the raw material and regulating the properties of the primary molten substance; The tertiary melting pool 23, located at the bottom of the melting pool 2, is used for the final melting of the raw materials and the regulation of the properties of the secondary molten mass; The feed inlet 3 is arranged above the melting pool 2 and fixed on the furnace body 1 for feeding raw materials, including a primary feed inlet 31, a secondary feed inlet 32, and a tertiary feed inlet 33; The discharge outlet 4 is fixedly connected to the tertiary melting pool 23 and arranged at the bottom of the furnace body 1 for discharging the molten mass after melting is completed; The modulation device 5 is fixed to the edge of the melting pool 2 through a connecting shaft and is used to control the opening and closing of the melting pool 2 and the diversion of the molten mass; the modulation device is arranged at the edge of each stage of the melting pool. During the melting process, the modulation device will be in a closed state, and at this time, the melting pool is a sealed container. When the melting process in the melting pool ends, the control system controls the opening degree of the modulation device to make it a slope that enables the molten mass to flow downward to the next stage, thereby realizing the control of the melting process in each stage of the melting pool.

[0036] The exhaust port 6 is fixed on the furnace body 1 facing the primary gear 1 for discharging the molten waste gas generated by high-temperature melting.

[0037] The control system is used to control the temperature of the furnace, the input amount of raw materials, and the opening degree of the modulation device 5.

[0038] The present invention provides a high-temperature melting control method and device with segmented feeding. By dividing the melting process into multiple stages, the melting temperature, time, and input amount of raw materials are respectively set according to the properties of the raw materials in each stage, ensuring that each molten raw material is melted under the best conditions, significantly improving the melting efficiency, reducing energy consumption, and improving the quality of the final product. At the same time, by setting a method for supplementing raw materials with multi-stage heating of the high-temperature melting control device, the molten materials and raw material input amounts of the upper and lower levels can be flexibly adjusted, ensuring stable reaction conditions in each stage of the melting pool and maintaining a stable output of the molten mass by the furnace device.

[0039] The above has shown and described the basic features, principles, and advantages of the present invention. It should be noted that the present invention is not limited by the above embodiments, but only some embodiments. Without departing from the spirit and scope of the present invention, several improvements and supplements made are regarded as the protection scope of the present invention.

Claims

1. A high-temperature melting control method with staged feeding, characterized in that: It includes the following steps: Parameter presetting step: According to the material and input amount of the tertiary molten raw materials, set the melting temperature and melting time of each melting pool in the high-temperature melting control device, and set the opening degree of the regulating device; Primary melting step: Input the first raw material from the primary feed inlet into the primary melting pool, melt the first raw material according to the preset melting temperature and melting time to obtain the primary melting pool melt, and drain and introduce the primary melting pool melt into the secondary melting pool; Secondary melting step: According to the properties of the primary melt, input the second raw material from the secondary feed inlet into the secondary melting pool, melt the second raw material through the melting temperature of the primary melt and the preset melting temperature and melting time, mix it with the primary melting pool melt, and adjust the properties of the molten product in real time to obtain the secondary melting pool melt, and drain and introduce the secondary melting pool melt into the tertiary melting pool; Tertiary melting step: According to the properties of the secondary melt, input the third raw material from the tertiary feed inlet into the tertiary melting pool, mix it with the secondary melt through the melting temperature of the secondary melt to obtain a completely melted material, and export the completely melted material from the discharge pipe; Abnormal adjustment step: When an abnormality occurs in the raw material input or melt, adjust the input amount of the upper-level melt and the raw material input amount to stably output the melt from the discharge pipe.

2. The high-temperature melting control method with segmented feeding according to claim 1, wherein When the melt in the primary melting pool, secondary melting pool, and tertiary melting pool is drained and introduced into the next lower level, a fixed surplus is set to be retained.

3. The high-temperature melting control method with staged feeding according to claim 1, characterized in that: When the input amount of the raw materials input into each melting pool of the high-temperature melting control device is higher than the preset input amount, a raw material input abnormality instruction is output. After the control system receives the raw material input abnormality instruction, it enters the abnormal adjustment step.

4. A high-temperature melting control method with segmented feeding according to claim 3, characterized in that The abnormal adjustment step includes: When the detected abnormality is in the primary melting pool, calculate and adjust the melting time according to the actual raw material input amount and the preset raw material input amount, and adjust the input amount of the raw materials in the secondary melting pool; When the detected abnormality is in the secondary melting pool and the tertiary melting pool, enter the proportioning step.

5. The high-temperature melting control method with staged feeding according to claim 4, characterized in that: The proportioning step includes: Output a feeding supplement instruction or a discharge adjustment instruction according to the surplus of the upper-level melt. When receiving the feeding supplement instruction, supplement the raw materials at the upper-level feed inlet and heat them; When receiving the discharge adjustment instruction, calculate the opening degree of the modulation device through the mass of the melt entering the secondary melting pool, and adjust the opening degree of the modulation device to make the upper-level melt flow into the abnormal melting pool and introduce the melt raw materials of the upper-level melting pool into the abnormal melting pool.

6. A high-temperature melting control method with segmented feeding according to claim 5, characterized in that, The calculation of the opening degree of the modulation device is configured as: ； Where θ is the opening degree of the modulation device, m is the mass of the melt, ρ is the density of the melt, and T is the temperature of the melt.

7. A high-temperature melting control method with segmented feeding according to claim 1, characterized in that, It also includes a heating state detection step. Detection devices are respectively arranged in each melting pool. After the heating is completed, the detection devices detect the melting condition of the melt in the furnace. When it is detected that the raw materials are not completely melted, calculate and set the melting time again, and calculate and adjust the heating temperature according to the extended melting time and the mass of the melt.

8. A high-temperature melting control method with segmented feeding according to claim 1, characterized in that When the primary melt enters the secondary melting pool, it still retains the melting temperature. When entering the abnormal adjustment, the secondary raw materials supplemented in the secondary melting pool are mixed with the primary melt and melted through the melting temperature retained by the primary melt.

9. A high-temperature melting control device with segmented feeding, applicable to a high-temperature melting control method with segmented feeding as claimed in any one of claims 1 to 8, characterized in that, It includes: The furnace body (1), as the main structure of the entire melting furnace, provides the space and environment required for melting raw materials; The molten pool (2) is arranged inside the furnace body (1) and includes: a primary molten pool (21) located at the top of the molten pool (2) for initially melting raw materials; A secondary molten pool (22) located in the middle of the molten pool (2) for further melting raw materials and regulating the properties of the primary molten mass; a tertiary molten pool (23) located at the bottom of the molten pool (2) for the final melting of raw materials and regulating the properties of the secondary molten mass; The feed inlet (3) is arranged above the molten pool (2) and fixed to the furnace body (1) for feeding raw materials, including a primary feed inlet (31), a secondary feed inlet (32), and a tertiary feed inlet (33); The discharge outlet (4) is fixedly connected to the tertiary molten pool (23) and arranged at the bottom of the furnace body (1) for discharging the molten mass after melting is completed; The modulation device (5) is fixed to the edge of the molten pool (2) through a connecting shaft for controlling the opening and closing of the molten pool (2) and the diversion of the molten mass; The exhaust port (6) is fixed to the furnace body (1) facing the primary molten pool (21) for discharging the molten exhaust gas generated by high-temperature melting; The control system is used to control the temperature of the melting furnace, the input amount of raw materials, and the opening degree of the modulation device (5).

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