Intelligent feeding system and feeding control method for antimony volatilization smelting process

Abstract

The present application relates to non-ferrous smelting technical field, specifically to a kind of antimony volatile smelting process intelligent feeding system and control method, intelligent feeding system includes grab crane, conveying equipment, lump ore preparation module, metering bin, feeding bell and intelligent control analysis module;Intelligent control analysis module is respectively connected with grab crane, conveying equipment, metering bin, lump ore preparation module, metering bin and feeding bell electricity, and intelligent control analysis module can control grab crane, conveying equipment, metering bin, lump ore preparation module, metering bin and feeding bell cooperate and carry out intelligent feeding operation.The present application is connected with the linkage logic of grab crane, conveying equipment, metering bin, lump ore preparation module, metering bin and feeding bell by intelligent control analysis module, and jointly acts to realize intelligent feeding operation, which not only organically combines each process of antimony volatile smelting, but also effectively improves smelting efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of nonferrous metal smelting, and in particular to an intelligent feeding system and a control method for an antimony volatilization smelting process. Background Art

[0002] Pyrometallurgical antimony smelting is the primary method for producing antimony. Traditional antimony smelting feeding systems suffer from several significant issues: Raw material processing is crude, and when the antimony content of the antimony ore fluctuates (20%-50%), manual adjustments to the ratio of auxiliary materials such as quicklime and coke are difficult to make quickly, resulting in unstable smelting efficiency. Equipment operates in isolation, lacking coordinated control of equipment such as ore bins, pelletizers, and conveying equipment, requiring frequent manual intervention in material transfers. Furthermore, the level of intelligence is low, lacking real-time grade detection and feedback mechanisms, making closed-loop optimization impossible. In traditional antimony smelting processes, the antimony content of the raw antimony ore fluctuates widely, the sulfur content is unstable, and the ratio of auxiliary materials (such as quicklime and coke) relies on manual experience. This results in low smelting efficiency, high antimony content in the foamy slag, and severe flue gas pollution. Summary of the Invention

[0003] The present invention aims to provide an intelligent feeding system for an antimony volatilization smelting process that organically combines multiple processes and has high smelting efficiency. The specific technical solution is as follows:

[0004] The present invention provides an intelligent feeding system for an antimony volatilization smelting process, which is used to transport materials to a smelting furnace for volatilization smelting. The materials include quicklime, antimony powder ore, antimony lump ore, coke, iron ore, limestone, foaming slag, and agglomerated oxygen. The system includes a grab crane, conveying equipment, a briquette preparation module, a metering silo, a feeding bell, and an intelligent control and analysis module.

[0005] The grab crane can transfer the materials to the input end of the briquette preparation module and the metering silo;

[0006] The briquette preparation module can prepare quicklime and antimony powder into briquette, and transport them to the feeding bell through the conveying equipment;

[0007] Antimony ore, coke, iron ore, limestone, foam slag and agglomerated oxygen are stored and measured respectively through a metering silo and transported to the feeding bell through the conveying equipment;

[0008] The charging bell is connected to the smelting furnace, and the charging bell can feed materials into the smelting furnace;

[0009] The intelligent control and analysis module is electrically connected to the grab crane, the conveying equipment, the metering silo, the briquette preparation module, the metering silo and the feeding clock respectively, and the intelligent control and analysis module can control the grab crane, the conveying equipment, the metering silo, the briquette preparation module, the metering silo and the feeding clock to cooperate in performing intelligent feeding operations.

[0010] Optionally, the briquette preparation module includes a fine ore bin, a quantitative feeder, a drum mixer, a disc granulator and a briquette metering bin;

[0011] Quicklime and antimony powder ore are stored in the powder ore bin respectively;

[0012] A quantitative feeder is provided between each of the fine ore bins and the drum mixer, and the quantitative feeder can quantitatively feed the quicklime and antimony fine ore in the fine ore bin into the drum mixer;

[0013] The drum mixer can mix quicklime and antimony powder ore to obtain a mixed material, and transport the mixed material to the disc granulator through the conveying equipment;

[0014] The disc granulator can pelletize the mixed material to obtain pellets;

[0015] The agglomerate metering bin is in communication with the disc pelletizer and is used for storing the agglomerates obtained by the disc pelletizer, and the agglomerate metering bin is in communication with the feeding bell.

[0016] Optionally, the intelligent control and analysis module includes an X-ray fluorescence analyzer, a multi-parameter sensor group, a dynamic proportioning server and a DCS control platform;

[0017] The X-ray fluorescence analyzer can perform real-time analysis on the antimony powder ore and the smelting products of the smelting furnace to obtain corresponding composition data;

[0018] The multi-parameter sensor group is arranged on the smelting furnace, and is used to detect the temperature, pressure and flue gas composition in the smelting furnace in real time to obtain real-time status data of the smelting furnace;

[0019] The dynamic proportioning server is electrically connected to the X-ray fluorescence analyzer and the multi-parameter sensor group respectively, and the dynamic proportioning server can calculate the optimal material addition ratio according to the component data and real-time status data;

[0020] The DCS control platform is electrically connected to the dynamic proportioning server, the grab crane, the conveying equipment, the charging bell, the smelting furnace, the quantitative feeder, the metering silo and the briquette metering silo respectively.

[0021] Optionally, the feeding bell includes an upper bell cover, a lower bell cover and a distribution device, the upper bell cover is used to store materials fed by the conveying equipment, and a pneumatic unloading valve is provided between the upper bell cover and the conveying equipment; the lower bell cover is arranged between the upper bell cover and the smelting furnace; the distribution device is arranged between the upper bell cover and the lower bell cover, and is used to evenly distribute the materials in the smelting furnace; the intelligent feeding system of the antimony volatilization smelting process also includes a pneumatic unloading valve, which is arranged between the feeding bell and the conveying equipment, and the pneumatic unloading valve is used to control the switch at the connection point between the conveying equipment and the feeding bell, and the pneumatic unloading valve is electrically connected to the DCS control platform.

[0022] The present invention also provides a feeding control method for an antimony volatilization smelting process, which controls the intelligent feeding system of the antimony volatilization smelting process described above to perform intelligent feeding operations, comprising the following steps:

[0023] S1: Unload different materials to corresponding areas respectively. The DCS control platform controls the grab crane to transfer different materials to the corresponding fine ore bin or metering silo.

[0024] S2: Set the initial addition amount of each material according to the established smelting parameters;

[0025] S3: The X-ray fluorescence analyzer is used to sample the powder ore bin to obtain the composition data of the antimony powder ore and the real-time status data obtained by the multi-parameter sensor group are input into the dynamic proportioning server to output the addition ratio of quicklime;

[0026] S4: The DCS control platform controls the discharge of quicklime from the powder bin based on the addition ratio of quicklime and coke, and produces briquettes through the briquette preparation module and stores them in the briquette metering bin.

[0027] S5: The DCS control platform controls the measurement and feeding of the briquette silos, each fine ore silo, and each metering silo based on the initial addition amount of each material to perform the measurement and feeding of this batch of smelting operations, and transports the materials to the feeding bell through the conveying equipment;

[0028] S6: The DCS control platform controls the charging clock to put the ingredients of this batch into the smelting furnace, and the smelting product is obtained after smelting in the smelting furnace;

[0029] S7: Sampling the smelting product with an X-ray fluorescence analyzer to obtain composition data of the smelting product, and inputting the composition data of the smelting product into a dynamic proportioning server to output the addition ratios of briquettes, antimony nuggets, coke, iron ore, and limestone;

[0030] S8: The DCS control platform controls the lump ore metering bin, each fine ore bin, and each metering silo based on the addition ratio of each material to carry out metering and feeding of the next batch of smelting operations, and transports them to the feeding bell through the conveying equipment; it returns to S6 to realize the cyclic operation of the intelligent feeding system.

[0031] Optionally, the existing smelting parameters in S2 include: alkalinity, pre-desulfurization rate, batch size and briquette addition amount; the component data in S7 include: antimony content, sulfur content, silica content, alumina content, iron content and calcium oxide content; the real-time status data in S3 include: smelting furnace temperature, sulfur dioxide concentration in flue gas and carbon dioxide concentration in flue gas.

[0032] Optionally, in the dynamic proportioning server, the specific formula for the quicklime addition ratio is as follows:

[0033] Quicklime addition ratio α% = a1 × antimony content of antimony powder ore + a2 × smelting furnace temperature + a3 × sulfur dioxide concentration in flue gas + a4 × carbon dioxide concentration in flue gas + b1;

[0034] Wherein: a1 is the adjustment coefficient for the antimony content of antimony powder ore, ranging from ±0.05 to 0.2; a2 is the adjustment coefficient for the smelting furnace temperature, ranging from ±0.0001 to 0.0005; a3 is the adjustment coefficient for the sulfur dioxide concentration in the flue gas, ranging from ±0.1 to 0.3; a4 is the adjustment coefficient for the carbon dioxide concentration in the flue gas, ranging from ±0.05 to 0.15; b1 is the constant term for the quicklime addition ratio, ranging from 4.0% to 8.0% of the briquette addition amount;

[0035] The specific formula for the coke addition ratio is as follows:

[0036] Coke addition ratio β% = c1 × antimony content of smelting product + c2 × smelting furnace temperature + c3 × carbon dioxide concentration in flue gas + b2;

[0037] Where: c1 is the adjustment coefficient for the antimony content of the smelting product, ranging from ±0.1 to 0.3; c2 is the adjustment coefficient for the smelting furnace temperature, ranging from ±0.001 to 0.003; c3 is the adjustment coefficient for the carbon dioxide concentration in the flue gas, ranging from ±0.1 to 0.3; b2 is the constant term for the coke addition ratio, ranging from 30% to 40% of the total amount of antimony-containing materials added, including briquettes and lump ore.

[0038] The specific formula for the addition ratio of antimony ore is as follows:

[0039] Antimony lump ore ratio γ% = a1 × antimony lump ore grade + a2 × smelting furnace temperature + a3 × iron ore grade + a4 × sulfur dioxide concentration in flue gas + b3;

[0040] Wherein: d1 is the adjustment coefficient for the grade of antimony lump ore, ranging from ±0.2 to 0.5; d2 is the adjustment coefficient for the smelting furnace temperature, ranging from ±0.0005 to 0.002; d3 is the adjustment coefficient for the grade of iron ore, ranging from ±0.1 to 0.2; d4 is the adjustment coefficient for the concentration of sulfur dioxide in the flue gas, ranging from ±0.1 to 0.2; b3 is the constant term for the addition ratio of antimony lump ore, ranging from 0% to 20% of the batch amount of this batch;

[0041] The specific formula for the iron ore addition ratio is as follows:

[0042] Iron ore ratio δ% = e1×iron ore grade + e2×smelting furnace temperature + e3×antimony lump ore grade + e4×antimony ore silicon content + e5×antimony ore calcium content + e6×antimony ore iron content + b4;

[0043] Among them: e1 is the adjustment coefficient for iron ore grade, ranging from ±0.3 to 0.6; e2 is the adjustment coefficient for smelting furnace temperature, ranging from ±0.001 to 0.005; e3 is the adjustment coefficient for antimony lump ore grade, ranging from ±0.2 to 0.5; e4 is the adjustment coefficient for silicon content of antimony ore, ranging from ±0.1 to 0.3; e5 is the adjustment coefficient for calcium content of antimony ore, ranging from ±0.05 to 0.25; e6 is the adjustment coefficient for iron content of antimony ore, ranging from ±0.1 to 0.3; b4 is the constant term for the iron ore addition ratio, ranging from 4% to 15% of the batch amount of this batch;

[0044] The specific formula for limestone addition ratio is as follows:

[0045] Limestone ratio ε% = f1 × limestone grade + f2 × smelting furnace temperature + f3 × antimony lump ore grade + f4 × antimony ore silicon content + f5 × antimony ore calcium content + b5;

[0046] Among them: f1 is the adjustment coefficient of limestone grade, which is ±0.4~0.8; f2 is the adjustment coefficient of smelting furnace temperature, which is ±0.002~0.01; f3 is the adjustment coefficient of antimony lump ore grade, which is ±0.4~0.8; f4 is the adjustment coefficient of antimony ore silicon content, which is ±0.2~0.6; f5 is the adjustment coefficient of antimony ore calcium content, which is ±0.10~0.3; b5 is the constant term of limestone addition ratio, which is 5%-26% of the batch amount of this batch.

[0047] Optionally, the S2 includes:

[0048] S2.1, the DCS control platform controls the quantitative feeders corresponding to antimony powder ore and quicklime to feed them into the drum mixer according to the optimal material addition ratio to obtain a mixed material;

[0049] S2.2. Use a conveying device to convey the mixed material to a disc pelletizer for agglomeration to obtain pellets; perform real-time particle size detection on the pellets, specifically comprising the following steps:

[0050] ①. Carry out real-time particle size detection on the aggregates to obtain the average particle size of the aggregates;

[0051] ②. If the average particle size of the aggregates meets the requirements, proceed to S2.3; otherwise, the DCS control platform activates the automatic particle size adjustment mechanism and returns to ①;

[0052] S2.3. The pellets that meet the requirements are regarded as briquette and stored in the briquette measuring bin;

[0053] S2.4. Use temperature and humidity sensors to detect the temperature and humidity in the pellet metering bin. After natural air drying, if the temperature and humidity in the pellet metering bin reach the set threshold, proceed to S3.

[0054] The DCS control platform in S2.2 starts the automatic adjustment of particle size mechanism specifically as follows:

[0055] When the average particle size of the briquette is less than 10 mm, increase the inclination angle of the disc pelletizer to the initial inclination angle. , the speed increases by 5r / min based on the initial speed;

[0056] When the average particle size of the agglomerates is 10mm-20mm, the disc pelletizer maintains the initial tilt angle and initial speed to produce agglomerates, ensuring that the particle size of the mixed material increases at a uniform rate;

[0057] When the average particle size of the agglomerates is 20 mm to 25 mm, the inclination angle of the disc granulator is reduced by 10° based on the initial inclination angle, and the rotation speed is reduced by 10 r / min based on the initial rotation speed.

[0058] Optionally, in S1, a material level detection sensor is used to respectively measure the real-time material level data of the briquette metering bin, each powder bin and each metering bin, and when the material level data reaches a set material level upper limit, the transfer of the corresponding material is stopped; when the material level data reaches a set material level lower limit, the grab crane is started to transfer the corresponding material, and when the material level data reaches a set material level upper limit, the transfer of the material is stopped;

[0059] In S5, each material of this batch is weighed twice using an electronic belt scale before being transported to the feeding bell;

[0060] Each metering silo is respectively provided with a quantitative feeder.

[0061] Optionally, the DCS control platform includes a batching control part, a metering and feeding control part, a conveying equipment control part, a smelting furnace control part, and a data monitoring and feedback control part.

[0062] The batching control part can receive the current addition ratio instruction of the dynamic proportioning server and the material addition amount fed back by the briquette metering bin, each powder bin and each metering bin, and adjust the current material addition amount according to the addition ratio instruction through the PID control algorithm;

[0063] The metering and feeding control part can receive the weight signal of the electronic belt scale corresponding to each material and the rotation speed of the quantitative feeder, and adjust the rotation speed of the quantitative feeder based on the weight signal of the electronic belt scale;

[0064] The conveying equipment control part is capable of receiving the operating status data and material location information fed back by the conveying equipment, and adjusting the operating speed of the conveying equipment and the start and stop sequence of each conveying equipment according to the operating status data and material location information;

[0065] The smelting furnace control part is capable of receiving real-time status data fed back by the multi-parameter sensor group and adjusting the operating parameters of the combustion device, the stirring device and the distribution device in the smelting furnace according to the real-time status data;

[0066] The data monitoring and feedback control part can receive data fed back by the X-ray fluorescence analyzer and the multi-parameter sensor group, and input it into the dynamic proportioning server to output a new addition ratio instruction, and then use the new addition ratio instruction to update the current addition ratio instruction in the ingredient control part.

[0067] Compared with the prior art, the present invention has the following beneficial effects:

[0068] The technical solution of the present invention connects the linkage logic of the grab crane, conveying equipment, metering silo, briquette preparation module, metering silo and feeding clock through the intelligent control and analysis module, and works together to realize intelligent feeding operation, which not only organically combines the various processes of antimony volatilization smelting, but also effectively improves the smelting efficiency, realizes efficient, accurate and automated feeding of the antimony volatilization smelting process, ensures stable and accurate feeding amount, improves production efficiency and product quality, and at the same time reduces labor costs and labor intensity, ensuring the safety and stability of the production process.

[0069] The X-ray fluorescence analyzer, multi-parameter sensor group, dynamic proportioning server, and DCS control platform are interconnected and work together to form a complete closed-loop control system, jointly realizing intelligent control of the smelting process. The X-ray fluorescence analyzer provides real-time data on the composition of the antimony powder ore and the smelted product. The multi-parameter sensor group monitors various state parameters within the smelting furnace in real time. This data is promptly transmitted to the dynamic proportioning server, which analyzes and calculates the optimal material addition ratio for the next batch and sends the new addition ratio instructions to the DCS control platform.

[0070] The DCS control platform, serving as the control center, uses the information provided by the dynamic proportioning server, combined with the temperature, pressure, flue gas composition and other measurement data from the multi-parameter sensor group in the melting furnace, and utilizes the PID adjustment, lead-lag control and other algorithms built into the DCS control platform to control the operating strategy of the intelligent feeding system (such as adjusting the frequency of equipment and valve opening, etc.). This enables intelligent control of the melting process, dynamic adjustment of the material addition ratio, and maintenance of a steady-state operating environment in the melting furnace.

[0071] The present invention ensures that the smelting process always operates in an optimal state through real-time monitoring and dynamic adjustment, thereby improving the rate and efficiency of the smelting reaction, reducing the smelting time, and improving production efficiency.

[0072] The present invention reduces energy waste by precisely controlling parameters such as temperature and pressure within the smelting furnace, optimizes the amount and ratio of fuel added, ensures full fuel combustion, improves energy utilization, and reduces energy consumption during the smelting process.

[0073] This invention achieves automated control of the smelting process, reducing reliance on manual operation. The DCS control platform can automatically coordinate the linkage logic of metering, feeding, conveying and other equipment, reducing the intensity and risk of manual operation and improving the stability and safety of the smelting process.

[0074] The present invention controls harmful gas emissions by monitoring flue gas composition in real time and making dynamic adjustments. For example, based on the concentrations of sulfur dioxide and carbon dioxide in the flue gas, the reaction conditions in the smelting furnace are adjusted in a timely manner to reduce the generation and emission of harmful gases and achieve green smelting.

[0075] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0077] Figure 1 This is a process flow chart of the intelligent feeding system of the antimony volatilization smelting process in Example 1 of the present invention;

[0078] Figure 2 This is an equipment connection diagram of the intelligent feeding system of the antimony volatilization smelting process in Example 1 of the present invention;

[0079] Figure 3 This is an architectural diagram of the intelligent control and analysis module in Example 1 of the present invention;

[0080] Figure 4 This is a flow chart of the intelligent control and analysis module in Example 2 of the present invention. DETAILED DESCRIPTION

[0081] To make the objectives, features, and advantages of the present invention more readily apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings. The accompanying drawings illustrate several embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

[0082] In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0083] In the present invention, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0084] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways.

[0085] See also Figures 1 to 3, this embodiment provides an intelligent feeding system for antimony volatilization smelting process, which is used to transport materials to the smelting furnace for volatilization smelting, and the materials include quicklime, antimony powder ore, antimony lump ore, coke, iron ore, limestone, foaming slag and agglomerated oxygen, including a grab crane, a conveying equipment, a briquette preparation module, a metering silo, a feeding bell and an intelligent control and analysis module. The grab crane can transport the materials to the input end and metering silo of the briquette preparation module; the briquette preparation module can prepare quicklime and antimony powder into briquette, and transport them to the feeding bell through the conveying equipment; antimony lump ore, coke, iron ore, stone Limestone, foamy slag and agglomerated oxygen are respectively stored and measured through the metering silo and transported to the charging bell through the conveying equipment; the charging bell is connected to the smelting furnace, and the charging bell can put the materials into the smelting furnace; the intelligent control and analysis module is respectively electrically connected to the grab crane, the conveying equipment, the metering silo, the briquette preparation module, the metering silo and the charging bell, and the intelligent control and analysis module can control the grab crane, the conveying equipment, the metering silo, the briquette preparation module, the metering silo and the charging bell to cooperate in performing intelligent feeding operations. In actual operation, the operating procedures of the intelligent feeding system are as follows: ore is fed by car, stored in the ore bin, grabbed by a grab crane, the quicklime / antimony powder ore (antimony concentrate) bin is fed to the conveying equipment via a quantitative feeder, the conveying equipment is sent to the drum mixer to pre-mix quicklime and antimony powder ore, the mixture is sent to the disc pelletizer for agglomeration via a conveying equipment, and the agglomerates are transported to the agglomerate metering silo for storage via a flatbed truck; finally, the naturally air-dried agglomerates, limestone, coke, antimony lump ore, iron ore, etc. are simultaneously sent from their corresponding metering silos to the conveying equipment equipped with an electronic belt scale and sent to the charging bell on the top of the antimony smelting furnace, thereby completing the loading procedure for subsequent smelting operations.

[0086] In this embodiment, the linkage logic of the grab crane, conveying equipment, metering silo, briquette preparation module, metering silo and feeding clock is connected through the intelligent control and analysis module, and they work together to realize intelligent loading operation, which not only organically combines the various processes of antimony volatilization smelting, but also effectively improves the smelting efficiency, realizes efficient, accurate and automated loading of the antimony volatilization smelting process, ensures stable and accurate loading quantity, improves production efficiency and product quality, and at the same time reduces labor costs and labor intensity, ensuring the safety and stability of the production process. In this embodiment, the grab crane has a laser positioning function, which is used to locate the material position and the silo position; the metering silo has storage, metering and feeding functions, and the metering silo outlet is equipped with a rod valve, which closes the silo outlet on time when the discharge volume is reached, and each silo outlet is installed with an anti-blocking vibration device. The metering silo adopts a three-point weighing sensor layout with a measuring range of 0.1~20t and a weighing accuracy of ±0.2~0.5%; the conveying equipment includes a supporting belt conveyor and a high-temperature resistant and dust-proof conveyor. The surface of the high-temperature resistant and dust-proof conveyor is covered with a silicon carbide coating, the working temperature tolerance range is -20℃~400℃, and it is equipped with a negative pressure dust removal interface; the flatbed truck adopts a laser-guided electric AGV forklift with a load capacity of 5 tons, a positioning accuracy of ±10mm, and is wirelessly connected to the mine warehouse inventory management system.

[0087] The briquette preparation module includes a powder ore bin, a quantitative feeder, a drum mixer, a disc granulator and a briquette metering bin, and quicklime and antimony powder ore are stored in each of the powder ore bins; a quantitative feeder is provided between each of the powder ore bins and the drum mixer, and the quantitative feeder can quantitatively feed the quicklime and antimony powder ore in the powder ore bin into the drum mixer; the drum mixer can mix quicklime and antimony powder ore to obtain a mixed material, and transport it to the disc granulator through the conveying equipment; the rotating shaft of the disc granulator is arranged at an angle; the disc granulator can briquette the mixed material to obtain briquette; the briquette metering bin is used to store briquette, and the briquette metering bin is connected to the feeding bell. In this embodiment, the drum mixer has an inclination angle of 5°~8° and a built-in atomizing water spray device, and the water spray amount is automatically adjusted through feedback from a humidity sensor; the disc granulator is equipped with a laser particle size detector and an inclination adjustment mechanism driven by a servo motor, and the granulation particle size control accuracy is ±0.5mm.

[0088] The intelligent control and analysis module includes an X-ray fluorescence analyzer, a multi-parameter sensor group, a dynamic proportioning server, and a DCS control platform. The X-ray fluorescence analyzer can respectively perform real-time analysis on the antimony powder ore and the smelting product of the smelting furnace to obtain corresponding composition data; the multi-parameter sensor group is installed on the smelting furnace and is used to detect the temperature, pressure, and flue gas composition in the smelting furnace in real time to obtain real-time status data of the smelting furnace;

[0089] The dynamic proportioning server is electrically connected to the X-ray fluorescence analyzer and the multi-parameter sensor group. It calculates the optimal material addition ratio based on composition data and state parameters. The DCS control platform is electrically connected to the dynamic proportioning server, the grab crane, the conveying equipment, the charging bell, the smelting furnace, the quantitative feeder, the metering silo, and the agglomerate metering silo. An online X-ray fluorescence spectrometer (XRF) analyzer analyzes the composition of antimony concentrate in real time, providing information on the content of various elements in the concentrate. This data is crucial for determining key parameters such as raw material grade and sulfur content, providing fundamental data for subsequent proportion optimization. A multi-parameter sensor group for the smelting furnace monitors parameters such as temperature, pressure, and flue gas composition in real time within the smelting furnace. This data reflects the real-time status of the smelting process and is key to controlling its stability and efficiency. Dynamic Proportioning Algorithm Server: This server receives data from XRF and smelting furnace sensors and uses algorithms to calculate the optimal ratio of auxiliary materials (such as quicklime and coke) in real time. This dynamic adjustment ensures an efficient and environmentally friendly smelting process. DCS Control Platform: Serving as the control center for the entire system, the DCS control platform integrates data and instructions from the XRF, multi-parameter sensor array, and dynamic proportioning server. It coordinates the linkage logic between metering, feeding, and conveying equipment to ensure automated and precise control of the entire loading and smelting process. Through this interconnected and synergistic effect, the intelligent control module achieves precise control of the smelting process, improves smelting efficiency, reduces energy consumption and manual intervention, and minimizes environmental pollution, thereby achieving intelligent and efficient antimony volatilization smelting process.

[0090] The feeding bell includes an upper bell cover, a lower bell cover and a distribution device. The upper bell cover is used to store the materials fed by the conveying equipment, and a pneumatic unloading valve is provided between the upper bell cover and the conveying equipment; the lower bell cover is provided between the upper bell cover and the smelting furnace; the distribution device is provided between the upper bell cover and the lower bell cover, and is used to evenly distribute the materials in the smelting furnace. In this embodiment, the distribution device is provided with a swing chute and a crank connecting rod mechanism. The swing chute is installed at the outlet of the storage tank or the upper bell cover, and is connected to the transmission system through the crank connecting rod mechanism. It can swing left and right or back and forth within a certain angle, and evenly distribute the materials in the lower bell cover or directly distribute them in the smelting furnace, so that the materials form a uniform material layer in the furnace, which is conducive to the smooth progress of the smelting process. The upper bell cover and the lower bell cover are connected by a specific mechanical structure, which can realize upper and lower linkage when adding materials. The upper bell jar mainly plays the role of material storage and preliminary sealing. It has a large storage space inside and can accommodate a certain amount of antimony ore and other materials to be smelted; the lower bell jar works closely with the mouth of the smelting furnace and plays a key sealing role.

[0091] The feeding bell also includes a transmission system, typically equipped with a motor, reducer, crankshaft connecting rod mechanism, and other transmission components. The motor and reducer provide power for the entire feeding device. The crankshaft connecting rod mechanism converts the rotational motion into the reciprocating opening and closing movement of the upper and lower bell housings or the swinging movement of the swing chute, achieving uniform material distribution and feeding control.

[0092] The charging bell also includes sealing devices. To ensure stable pressure within the smelting furnace and prevent the escape of high-temperature flue gas, tight sealing devices are installed between the two bell jars, between the bell jar and the furnace mouth, and on related moving parts. These devices, such as high-temperature resistant sealing rings and labyrinth seals, ensure that flue gas does not leak through the gaps between the bell jars during charging, while also preventing outside air from entering the furnace and affecting the smelting atmosphere.

[0093] The charging bell also includes a cooling device. Since the temperature inside the smelting furnace is relatively high, a cooling device is provided to protect the key components of the double bell charging device from being damaged by high temperature.

[0094] The intelligent feeding system of the antimony volatilization smelting process also includes a pneumatic unloading valve, which is arranged between the feeding bell and the conveying equipment. The pneumatic unloading valve is used to control the switch at the connection point between the conveying equipment and the feeding bell, and the pneumatic unloading valve is electrically connected to the DCS control platform. This embodiment adopts a pneumatic double-door intermittent opening and closing unloading valve. The pneumatic double-door intermittent opening and closing unloading valve has the function of fast switching, thanks to the internal structural design of the valve body and the high efficiency of the pneumatic system. The valve body is made of lightweight, high-strength material, so that the valve plate can be quickly switched on and off under the action of the pneumatic actuator. At the same time, the pneumatic system can provide stable and fast air pressure drive to ensure that the valve plate completes the action in a short time.

[0095] The benefits of using a pneumatic discharge valve for the feeding system include: ① Continuous and stable feeding: Ensures uniform and stable material delivery to the melting furnace, avoiding feed interruptions and improving production efficiency. ② Reduced material leakage and waste: Effectively prevents material leakage during valve switching, reducing production costs. ③ Improved production safety: Rapid valve closure prevents the leakage of harmful gases and high-temperature materials, protecting operators. ④ Extended equipment life: Reduces mechanical impact and wear on the valve body, reducing equipment maintenance costs. ⑤ Enhanced system automation and flexibility: Rapidly responds to control commands, achieving precise material control and adapting to different production needs.

[0096] Example 2

[0097] See also Figure 4 This embodiment provides a method for controlling an intelligent feeding system of an antimony volatilization smelting process, which controls the intelligent feeding system of the antimony volatilization smelting process to perform intelligent feeding operations, including the following steps:

[0098] S1: Unload different materials to corresponding areas respectively. The DCS control platform controls the grab crane to transfer different materials to the corresponding fine ore bin or metering silo.

[0099] In S1, the material level detection sensor is used to measure the real-time material level data of the briquette metering bin, each powder bin and each metering bin respectively. When the material level data reaches the set material level upper limit, the transportation of the corresponding material is stopped; when the material level data reaches the set material level lower limit, the grab crane is started to transport the corresponding material, and when the material level data reaches the set material level upper limit, the transportation of the material is stopped;

[0100] S2: Setting the initial addition amount of each material according to the established smelting parameters; the established smelting parameters include: alkalinity, pre-desulfurization rate, quicklime purity, batch size and briquette addition amount; alkalinity is the ratio of FeO, SiO2 and CaO.

[0101] The S2 includes:

[0102] S2.1, the DCS control platform controls the quantitative feeders corresponding to antimony powder ore and quicklime to feed them into the drum mixer according to the optimal material addition ratio to obtain a mixed material;

[0103] S2.2. Use a conveying device to convey the mixed material to a disc pelletizer for agglomeration to obtain pellets; perform real-time particle size detection on the pellets, specifically comprising the following steps:

[0104] ①. Carry out real-time particle size detection on the aggregates to obtain the average particle size of the aggregates;

[0105] ②. If the average particle size of the aggregates meets the requirements, proceed to S2.3; otherwise, the DCS control platform activates the automatic particle size adjustment mechanism and returns to ①;

[0106] S2.3. The pellets that meet the requirements are regarded as briquette and stored in the briquette measuring bin;

[0107] In S2.2, after the mixed material enters the disc pelletizer, a laser particle size detector is used to perform real-time particle size detection on the pellets to obtain the average particle size of the pellets. If the average particle size is not within the preset particle size range, the DCS control platform activates the automatic particle size adjustment mechanism. In this embodiment, the preset particle size range is 15 mm to 25 mm; the initial tilt angle is 45°, and the initial speed is 20 r / min. The DCS control platform activates the automatic particle size adjustment mechanism in S2.2 specifically as follows:

[0108] When the average particle size of the briquette is less than 10 mm, increase the inclination angle of the disc pelletizer to the initial inclination angle. , the speed is increased by 5r / min on the basis of the initial speed; when the average particle size of the briquette is between 10mm-15mm, the particle size of some briquette is within the preset particle size range. In order to avoid the particle size of the briquette within the preset particle size range growing too fast and exceeding the preset particle size range, this embodiment chooses to adjust when the average particle size of the briquette is less than 10mm.

[0109] When the average particle size of the agglomerates is 10mm-20mm, the disc pelletizer maintains the initial tilt angle and initial speed to produce agglomerates, ensuring that the particle size of the mixed material increases at a uniform rate;

[0110] When the average particle size of the agglomerates is 20 mm to 25 mm, the inclination angle of the disc granulator is reduced by 10° based on the initial inclination angle, and the rotation speed is reduced by 10 r / min based on the initial rotation speed.

[0111] S2.4, use the temperature and humidity sensor to detect the temperature and humidity in the pellet metering bin. After the pellets are naturally dried, if the temperature and humidity in the pellet metering bin reach the set threshold, the process proceeds to S3. The wet pellets are naturally dried to dry pellets.

[0112] S3: The composition data of the antimony powder ore obtained by sampling the powder ore bin with an X-ray fluorescence analyzer and the real-time status data obtained by the multi-parameter sensor group are input into the dynamic proportioning server to output the addition ratio of quicklime; the composition data include: antimony content, sulfur content, silicon dioxide content, aluminum oxide content, iron content and calcium oxide content; the real-time status data include: smelting furnace temperature, sulfur dioxide concentration in flue gas and carbon dioxide concentration in flue gas.

[0113] In the dynamic proportioning server, the specific formula for the quicklime addition ratio is as follows:

[0114] Quicklime addition ratio α% = a1 × antimony content of antimony powder ore + a2 × smelting furnace temperature + a3 × sulfur dioxide concentration in flue gas + a4 × carbon dioxide concentration in flue gas + b1;

[0115] Wherein: a1 is the adjustment coefficient for the antimony content of antimony powder ore, ranging from ±0.05 to 0.2; a2 is the adjustment coefficient for the smelting furnace temperature, ranging from ±0.0001 to 0.0005; a3 is the adjustment coefficient for the sulfur dioxide concentration in the flue gas, ranging from ±0.1 to 0.3; a4 is the adjustment coefficient for the carbon dioxide concentration in the flue gas, ranging from ±0.05 to 0.15; b1 is the constant term for the quicklime addition ratio, ranging from 4.0% to 8.0% of the briquette addition amount;

[0116] In this example, a1, a2, a3, and a4 are used to measure the impact of various factors on the quicklime addition ratio. For every 1% increase / decrease in antimony concentrate grade (antimony content in antimony powder), the quicklime addition ratio increases / decreases by 0.05%-0.2%. Higher grades require more quicklime to maintain alkalinity or for pre-desulfurization. For every 1°C increase / decrease in smelting furnace temperature, the quicklime addition ratio increases / decreases by 0.0001%-0.0005%. For every 0.1% increase / decrease in flue gas sulfur dioxide concentration, the quicklime addition ratio increases / decreases by 0.1%-0.3% to enhance pre-desulfurization. For every 0.1% increase / decrease in flue gas carbon dioxide concentration, the quicklime addition ratio increases / decreases by 0.05%-0.15%. This factor reflects the oxidation status of carbonaceous fuels and indirectly affects alkalinity control. b1 ensures that the base amount of quicklime added meets reaction requirements, ensuring sufficient initial amount for desulfurization and fluxing even when other variables are zero. This factor is used to adjust the overall performance of the formula.

[0117] S4: The DCS control platform controls the discharge of quicklime from the powder bin based on the addition ratio of quicklime and coke, and produces briquettes through the briquette preparation module and stores them in the briquette metering bin.

[0118] S5: The DCS control platform controls the measurement and feeding of the briquette silos, each fine ore silo, and each metering silo based on the initial addition amount of each material to perform the measurement and feeding of this batch of smelting operations, and transports the materials to the feeding bell through the conveying equipment;

[0119] In S5, each material of this batch is separately metered using an electronic belt scale before being conveyed to the feeding bell; each metering silo is provided with a corresponding quantitative feeder. In this embodiment, the electronic belt scale has a measuring range of 0.5-2t and a weighing accuracy of ±0.1-0.25%. Unlike the storage silos for fine ore and quicklime, materials such as briquettes, limestone, coke, antimony ore, and iron ore are particularly difficult to control during unloading due to their large particle size. Large pieces of material can easily fall into the conveyor when the rod valve is closed, resulting in the actual material conveying volume exceeding the required amount of ingredients. Therefore, after these materials are unloaded and metered from the metering silo to the supporting belt conveyor, they need to be metered again by the electronic scale of the conveyor to accurately control the amount of material entering the furnace top feeding bell. After the material conveying volume is accurately controlled by these two levels of metering equipment (metering silo + belt scale), they enter the furnace top loading device.

[0120] S6: The DCS control platform controls the charging clock to put the ingredients of this batch into the smelting furnace, and the smelting product is obtained after smelting in the smelting furnace;

[0121] S7: The smelting product is sampled and tested using an X-ray fluorescence analyzer to obtain composition data of the smelting product, and the composition data of the smelting product is input into a dynamic proportioning server to output the addition ratios of antimony lump ore, coke, iron ore, and limestone. The composition data include: antimony content, sulfur content, silica content, alumina content, iron content, and calcium oxide content. In this embodiment, the antimony ore grade (antimony content of the smelting product), antimony lump ore grade, iron ore grade, and limestone grade are all obtained by analysis using an X-ray fluorescence analyzer or other existing detection instruments.

[0122] The specific formula for the coke addition ratio is as follows:

[0123] Coke addition ratio, β% = c1 × antimony ore grade + c2 × smelting furnace temperature + c3 × carbon dioxide concentration in flue gas + c4 × content of metallic antimony in smelting products (antimony oxide) + b2;

[0124] Where: c1 is the adjustment coefficient for antimony ore grade (antimony content in smelting products), ranging from ±0.1 to 0.3; c2 is the adjustment coefficient for smelting furnace temperature, ranging from ±0.001 to 0.003; c3 is the adjustment coefficient for carbon dioxide concentration in flue gas, ranging from ±0.1 to 0.3; c4 is the content of metallic antimony in the smelting products (antimony oxide), ranging from -1 to 3; b2 is the constant term for the coke addition ratio, ranging from 30% to 40% of the total amount of antimony-containing materials added. Antimony-containing materials include briquettes and lump ore.

[0125] In this embodiment, c1, c2, c3, and c4 are fitting empirical coefficients used to determine the influence of various factors on the coke addition ratio. For every 1% increase / decrease in antimony ore grade, the coke addition ratio decreases / increases by 0.1% to 0.3%. For every 1°C decrease / increase in smelting furnace temperature, the coke addition ratio increases / decreases by 0.001% to 0.003% to ensure a certain amount of reaction heat. For every 0.1% increase / decrease in carbon dioxide concentration in flue gas, the coke addition ratio decreases / increases by 0.1% to 0.2%. It reflects the carbon oxidation situation, and high concentration of carbon dioxide needs to be reduced. At the same time, if metallic antimony is detected in antimony oxide, it indicates that the volatile smelting coke rate is too high and there is a reduction reaction. In this case, the amount of coke added needs to be reduced. For every 0.1% increase in the content of metallic antimony (elemental antimony) in antimony oxide, the proportion of coke added should be reduced by 1%~3%. b2 is the basic coke amount set according to the reaction scale and experience to ensure sufficient initial carbon to promote smelting. After adjustment, the height of the coke layer entering the furnace in the batch amount is 150-200mm.

[0126] The specific formula for the addition ratio of antimony ore is as follows:

[0127] Antimony lump ore ratio γ% = d1 × antimony lump ore grade + d2 × smelting furnace temperature + d3 × iron ore grade + d4 × sulfur dioxide concentration in flue gas + b3;

[0128] Wherein: d1 is the adjustment coefficient for the grade of antimony lump ore, ranging from ±0.2 to 0.5; d2 is the adjustment coefficient for the smelting furnace temperature, ranging from ±0.0005 to 0.002; d3 is the adjustment coefficient for the grade of iron ore, ranging from ±0.1 to 0.2; d4 is the adjustment coefficient for the concentration of sulfur dioxide in the flue gas, ranging from ±0.1 to 0.2; b3 is the constant term for the addition ratio of antimony lump ore, ranging from 0-20% of the batch amount of this batch;

[0129] In this embodiment, the higher the grade of the antimony lump ore, the higher the antimony content per unit mass. Therefore, the proportion of antimony lump ore needs to be appropriately adjusted. For every 1% increase / decrease in the grade of the antimony lump ore, the proportion of antimony lump ore added decreases / increases by 0.2%~0.5%. For every 1% increase / decrease in the grade of the antimony lump ore, the proportion of antimony lump ore added decreases / increases by 0.2%~0.5%. The smelting furnace temperature also affects the proportion of antimony lump ore. As the temperature rises, the proportion of antimony lump ore can be appropriately increased to maintain the reaction balance in the furnace. For every 1°C increase / decrease in the smelting furnace temperature, the proportion of antimony lump ore increases / decreases by 0.0005%~ 0.002%; the iron ore grade will affect the element balance of the overall reaction, thereby indirectly affecting the proportion of antimony lump ore. For every 1% increase / decrease in iron ore grade, the proportion of antimony lump ore will increase / decrease by 0.1%~0.2%; sulfur dioxide in the flue gas reflects the chemical reaction in the furnace. For every 0.1% increase / decrease in sulfur dioxide concentration in the flue gas, the proportion of antimony lump ore will decrease / increase by 0.1%~0.2%, which is related to sulfur oxidation reaction and material balance; b3 The basic and adjusted proportions of antimony lump ore are set according to the properties of the ore and production tasks, that is, the proportion of antimony lump ore in conventional production.

[0130] The specific formula for the iron ore addition ratio is as follows:

[0131] Iron ore ratio δ% = e1×iron ore grade + e2×smelting furnace temperature + e3×antimony lump ore grade + e4×antimony ore silicon content + e5×antimony ore calcium content + e6×antimony ore iron content + b4;

[0132] Among them: e1 is the adjustment coefficient for iron ore grade, which is ±0.3~0.6; e2 is the adjustment coefficient for smelting furnace temperature, which is ±0.001~0.005; e3 is the adjustment coefficient for antimony lump ore grade, which is ±0.2~0.5; e4 is the adjustment coefficient for silicon content of antimony ore, which is ±0.1~0.3; e5 is the adjustment coefficient for calcium content of antimony ore, which is ±0.05~0.25; e6 is the adjustment coefficient for iron content of antimony ore, which is ±0.1~0.3; b4 is the constant term for the iron ore addition ratio, which is 4%-15% of the batch amount of this batch; the silicon content of antimony ore is the silicon dioxide content, and the calcium content of antimony ore is the calcium oxide content.

[0133] In this embodiment, the iron ore grade is an important factor affecting its own proportion. When the grade is high / low, the proportion needs to be adjusted accordingly. For every 1% increase / decrease in the iron ore grade, the iron ore proportion decreases / increases by 0.3% to 0.6%. Changes in the smelting furnace temperature will affect the smelting reaction rate. For every 1°C increase / decrease in the smelting furnace temperature, the iron ore proportion increases / decreases by 0.001% to 0.005%. Changes in the antimony lump ore grade will also change the elemental composition in the furnace, thereby affecting the iron ore proportion. For every 1% increase / decrease in the antimony lump ore grade, the iron ore proportion decreases / increases by 0.2% to 0.5%. If the antimony content of high / low grade antimony lump ore is high / low and the impurity content is low, the amount of slag will be small / large, and the iron ore can be reduced / increased; for every 0.1% increase / decrease in the silicon content of the antimony ore, the proportion of iron ore will increase / decrease by 0.1%~0.3% to regulate the material balance of the slag making reaction; for every 0.1% increase / decrease in the iron content of the antimony ore, the proportion of iron ore will decrease / increase by 0.1%~0.3%, and the amount of exogenous iron ore supplementation can be adjusted according to the iron content of the antimony ore; B4 can set the basic proportion of iron ore according to production needs and ore properties.

[0134] The specific formula for limestone addition ratio is as follows:

[0135] Limestone ratio ε% = f1 × limestone grade + f2 × smelting furnace temperature + f3 × antimony lump ore grade + f4 × antimony ore silicon content + f5 × antimony ore calcium content + b5;

[0136] Among them: f1 is the adjustment coefficient of limestone grade, which is ±0.4~0.8; f2 is the adjustment coefficient of smelting furnace temperature, which is ±0.002~0.01; f3 is the adjustment coefficient of antimony lump ore grade, which is ±0.4~0.8; f4 is the adjustment coefficient of antimony ore silicon content, which is ±0.2~0.6; f5 is the adjustment coefficient of antimony ore calcium content, which is ±0.10~0.3; b5 is the constant term of limestone addition ratio, which is 5%-26% of the batch amount of this batch.

[0137] In this embodiment, the grade of limestone is an important factor affecting its proportion. When the grade is high or low, the proportion needs to be adjusted accordingly. For every 1% increase / decrease in limestone grade, the limestone ratio decreases / increases by 0.4%-0.8%. Changes in smelting furnace temperature affect the smelting reaction rate. For every 1°C increase / decrease in smelting furnace temperature, the limestone ratio increases / decreases by 0.002%-0.01%. Changes in limestone grade also alter the elemental composition in the furnace, thereby affecting the limestone ratio. For every 1% increase / decrease in antimony lump ore grade, the limestone ratio decreases / increases by 0.4%-0.8%. High- / low-grade antimony lump ore has high / low antimony content and low impurity content, resulting in a small / large slag volume, which can reduce / increase iron ore. For every 0.1% increase / decrease in antimony ore silicon content, the limestone ratio increases / decreases by 0.2%-0.6%, thereby regulating the material balance of the slag-forming reaction. For every 0.1% increase / decrease in antimony ore calcium content, the limestone ratio decreases / increases by 0.10%-0.3%, thereby regulating the material balance of the slag-forming reaction and adjusting the amount of exogenous limestone supplement based on the antimony ore calcium content. B5 can set the basic limestone ratio according to production needs and ore properties.

[0138] In this embodiment, the addition ratio of small-amount materials such as foam slag, antimony matte, and agglomerated oxygen is: the addition ratio of antimony-containing materials such as foam slag, antimony matte, and agglomerated oxygen is relatively low and the addition amount is small, so the dynamic adjustment range is small. Therefore, they can be added in a quantitative manner according to the total antimony addition amount of antimony ore (antimony ore, antimony lump ore), so as to improve the recycling rate of antimony in these three materials.

[0139] S8: The DCS control platform controls the lump ore metering bin, each fine ore bin, and each metering silo based on the addition ratio of each material to carry out metering and feeding of the next batch of smelting operations, and transports them to the feeding bell through the conveying equipment; it returns to S6 to realize the cyclic operation of the intelligent feeding system.

[0140] In this embodiment, the DCS control platform includes a batching control part, a metering and feeding control part, a conveying equipment control part, a smelting furnace control part, and a data monitoring and feedback control part.

[0141] The batching control part can receive the current addition ratio instruction of the dynamic proportioning server and the material addition amount fed back by the briquette metering bin, each powder bin and each metering bin, and adjust the current material addition amount according to the addition ratio instruction through the PID control algorithm;

[0142] The metering and feeding control part can receive the weight signal of the electronic belt scale corresponding to each material and the rotation speed of the quantitative feeder, and adjust the rotation speed of the quantitative feeder based on the weight signal of the electronic belt scale;

[0143] The conveying equipment control part is capable of receiving the operating status data and material location information fed back by the conveying equipment, and adjusting the operating speed of the conveying equipment and the start and stop sequence of each conveying equipment according to the operating status data and material location information;

[0144] The smelting furnace control part is capable of receiving real-time status data fed back by the multi-parameter sensor group and adjusting the operating parameters of the combustion device, the stirring device and the distribution device in the smelting furnace according to the real-time status data;

[0145] The data monitoring and feedback control part can receive data fed back by the X-ray fluorescence analyzer and the multi-parameter sensor group, and input it into the dynamic proportioning server to output a new addition ratio instruction, and then use the new addition ratio instruction to update the current addition ratio instruction in the ingredient control part.

[0146] The DCS control platform achieves precise control of the entire smelting process, ensuring the efficiency, stability and environmental protection of the production process.

[0147] In this embodiment, the DCS control platform is provided with a system interface and an alarm panel. The system interface is used to display the material ratio adjustment curve and the equipment operation status matrix. When equipment blockage, over-temperature or SO2 exceeding the limit is detected, the corresponding indicator light on the alarm panel lights up, and the shutdown protection is automatically triggered and an alarm message is sent to the central control room.

[0148] This embodiment has the following beneficial effects:

[0149] ① Accurate loading and optimal furnace column height. Optimized equipment for bulk materials utilizes innovative metering silos to efficiently and simultaneously perform material storage, metering, and feeding, reducing equipment requirements and costs. Furthermore, an automated control system precisely regulates the quality of incoming materials, maintaining the furnace column height within a reasonable range. This prevents over- or under-charging, which can lead to excessively high or low column heights and adverse effects such as furnace agglomeration.

[0150] ② Dynamic proportioning control. The XRF online analyzer samples and analyzes the content of relevant elements in the antimony concentrate (in the raw material receiving process (antimony powder ore, antimony lump ore), and in the smelting process (smelting products - crude antimony oxide, slag, antimony matte, etc.). The amount of quicklime and other materials required for briquetting are calculated based on the basicity requirements of the smelting process, the amount of pre-desulfurization required, and the amount of binder required. At the same time, the amount of coke added is dynamically adjusted based on feedback from the smelting furnace temperature, the height of the coke layer in the smelting furnace, the amount of antimony ore, etc.

[0151] ③ Closed-loop feedback optimization. The data of each process link is uploaded to the DCS control platform in real time. The DCS control platform dynamically adjusts the parameter values ​​of the feeding system based on the real-time data, dynamically responds and adjusts, and the entire feeding system is coordinated and closed-loop to ensure that the feeding system as a whole is in a stable operation state.

[0152] The specific steps are as follows:

[0153] 1. Raw material reception and pretreatment

[0154] Step 1: Car unloading and intelligent sorting

[0155] Trucks unload flotation antimony concentrate (antimony powder / powder ore, particle size 5-10mm), antimony lump ore (lump ore, particle size 10-40mm), limestone, coke, iron ore, agglomerated oxygen, slag, etc. to the corresponding areas, and grab cranes use laser positioning to transfer the corresponding materials to the corresponding silos.

[0156] Specifically, the antimony lump ore silo (200m³ capacity) stores antimony lump ore with a particle size of 10mm or larger for subsequent direct smelting. The fine ore silo (150m³ capacity) stores antimony fine ore with a particle size of ≤10mm for the pelletizing process. The system updates silo inventory levels in real time, triggering an alert and initiating a transshipment plan when the silo's level reaches 85%.

[0157] Step 2: Dynamic proportioning of antimony powder ore and quicklime

[0158] The X-ray fluorescence analyzer (XRF) was used to sample and test the main elements in the fine ore bin, and the measured or converted calculation results were: antimony content 40.8%, sulfur content 18.7%, silicon dioxide content 7.6%, aluminum oxide content 2.7%, iron content 2.1%, calcium oxide content 0.7, the batch size was 1000kg, and the initial addition of quicklime was 4% of the briquette. Subsequently, according to the requirements of alkalinity and pre-desulfurization rate, the amount of quicklime was adjusted in real time according to the algorithm rules of the dynamic proportioning server to adjust the proportion of the next batch addition.

[0159] 2. Mixing and briquette preparation

[0160] Step 1: Mixing with a drum mixer

[0161] A mixture of quicklime and antimony ore powder enters a drum mixer (7° inclination, 18 rpm). A built-in humidity sensor monitors moisture content in real time (initial value: 12%). The atomizing water spray system dynamically adjusts the target moisture content to 15% and the spray rate to 1.0 L / min. Samples of material exiting the drum mixer are tested, revealing an actual moisture content of 14.8%, which the system determines is acceptable.

[0162] Step 2: Disc granulator for dough making

[0163] The mixed material obtained from the drum mixer enters the disc granulator (diameter 3.2m, inclination angle 45°) via a conveyor. The laser particle size detector scan shows that the average particle size after agglomeration is 6.5mm.

[0164] The automatic adjustment mechanism activated: the inclination angle increased from 45° to 50°, increasing the material rolling speed; the speed was adjusted from 20 rpm to 25 rpm, increasing centrifugal force and increasing particle size. The average particle size reached 15 mm during the second test, with the angle and speed remaining unchanged. The average particle size reached 22.5 mm during the third test, with the inclination angle reduced by 10° and the speed reduced by 10 rpm. After briquetting, the materials were transported to the briquette weighing bin by an AGV (5-ton load capacity, ±10mm positioning accuracy), with the entire route planned to avoid obstacles within the factory.

[0165] The starting conditions of the adjustment mechanism: After the mixed material enters the disc granulator, the laser particle size detector is directly started to detect the particle size. When the detected average particle size does not reach the preset particle size range (15mm-25mm), the automatic adjustment mechanism is started to adjust the particle size of the material.

[0166] 2. Air drying of briquettes and intelligent batching

[0167] Step 1: Environmental control of briquette metering warehouse

[0168] The briquette metering bin is equipped with temperature and humidity sensors (temperature 25°C, humidity 50%). After 48 hours of natural air drying, the moisture content drops from 15% to 8%.

[0169] Step 2: Coordinated blending of multiple ingredients

[0170] Antimony concentrate composition: antimony content 40.8%, sulfur content 18.7%, silicon dioxide content 7.6%, aluminum oxide content 2.7%, iron content 2.1%, calcium oxide content 0.7;

[0171] First batch addition: Smelting furnace material requirements (1000kg / batch): 450kg of briquettes (including 432kg of antimony powder and 18kg of quicklime), 120kg of antimony lump ore, 170kg of coke, 100kg of iron ore, 35kg of slag, 105kg of limestone, and 20kg of agglomerated oxygen. Each metering silo discharges material in real time, and the vibrating device at each silo outlet (2mm amplitude, 10s interval) operates intermittently to prevent material blockage.

[0172] 3. Accurate measurement and smelting feedback

[0173] Step 1: High-precision measurement and delivery

[0174] The material is measured and fed in the metering silo and transported to the supporting belt conveyor. After secondary measurement by the electronic belt scale, the material is then transported to the charging bell on the top of the smelting furnace at a uniform speed of 1.5m / s.

[0175] Step 2: Melting and data feedback

[0176] ① Melting requirements are shown in Table 1. The material is evenly fed into the melting furnace by the feeding bell. The melting furnace sensor provides feedback data.

[0177] Table 1 Melting requirements and key indicators

[0178]

[0179] ② The smelting results are shown in Table 2.

[0180] Table 2 Furnace result data

[0181]

[0182] Based on the above smelting analysis results, the DCS control platform triggers instructions for optimizing and adjusting the next batch of material loading. By comparing data and adjusting the material addition ratios based on the algorithm, the next batch of material loading is optimized and adjusted. This is then accurately fed back to the metering silo via the control system to control the next batch of material loading.

[0183] 4. Emergency handling and system optimization

[0184] Abnormal blockage treatment: If the flow rate of the fine ore bin drops by 20% within 10 minutes, the air cannon will be automatically triggered (pressure 0.5MPa), and the material supply will be resumed after the blockage is cleared;

[0185] Over-temperature protection: When the temperature of the charging port of the smelting furnace is greater than 400℃, air cooling starts and shuts down after the temperature drops to 350℃.

[0186] This embodiment further includes a readable storage medium having computer program instructions stored thereon. When the computer program instructions are executed by a processor, the above-mentioned method for controlling the feeding of antimony in the volatilization smelting process is implemented.

[0187] It should be noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed across multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment. In addition, in the drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. A person of ordinary skill in the art can understand and implement the present invention without inventive effort.

[0188] This embodiment also includes an electronic device, including: at least one processor, at least one memory, and computer program instructions stored in the memory. When the computer program instructions are executed by the processor, the above-mentioned feeding control method for the antimony volatilization smelting process is provided.

[0189] Exemplarily, the computer program may be divided into one or more modules / units, which are stored in the memory and executed by the processor to implement the present invention. The one or more modules / units may be a series of computer program instruction segments capable of implementing specific functions, and the instruction segments are used to describe the execution process of the computer program in the electronic device.

[0190] The electronic device may be a computing device such as a mobile phone, desktop computer, laptop, PDA, or cloud server. The electronic device may include, but is not limited to, a processor and memory. For example, the electronic device may also include input / output devices, network access devices, buses, etc.

[0191] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the electronic device, connecting various parts of the entire electronic device using various interfaces and lines.

[0192] The memory can be used to store the computer program and / or module, and the processor implements the computer program by running or executing the computer program and / or module stored in the memory, and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required for a function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created based on the use of the mobile phone (such as audio data, a phone book, etc.). In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage device.

[0193] Wherein, if the module / unit integrated in the electronic device is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the process in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a readable storage medium. When the computer program is executed by the processor, it can implement the steps of each of the above-mentioned method embodiments. Wherein, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0194] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A feeding control method for an antimony volatilization smelting process, characterized in that: The intelligent loading operation of the feeding system for controlling the antimony volatilization smelting process includes the following steps: S1: Unload different materials to corresponding areas respectively. The DCS control platform controls the grab crane to transfer different materials to the corresponding fine ore bin or metering silo. S2: Set the initial addition amount of each material according to the established smelting parameters; S3: The X-ray fluorescence analyzer is used to sample the powder ore bin to obtain the composition data of the antimony powder ore and the real-time status data obtained by the multi-parameter sensor group are input into the dynamic proportioning server to output the addition ratio of quicklime; S4: The DCS control platform controls the discharge of quicklime from the powder bin based on the addition ratio of quicklime and coke, and produces briquettes through the briquette preparation module and stores them in the briquette metering bin. S5: The DCS control platform controls the measurement and feeding of the briquette silos, each fine ore silo, and each metering silo based on the initial addition amount of each material to perform the measurement and feeding of this batch of smelting operations, and transports the materials to the feeding bell through the conveying equipment; S6: The DCS control platform controls the charging clock to put the ingredients of this batch into the smelting furnace, and the smelting product is obtained after smelting in the smelting furnace; S7: Sampling the smelting product with an X-ray fluorescence analyzer to obtain composition data of the smelting product, and inputting the composition data of the smelting product into a dynamic proportioning server to output the addition ratios of briquettes, antimony nuggets, coke, iron ore, and limestone; S8: The DCS control platform controls the briquette metering bin, each fine ore bin, and each metering silo based on the addition ratio of each material to carry out metering and feeding of the next batch of smelting operations, and transports the materials to the feeding bell through the conveying equipment; it returns to S6 to realize the cyclic operation of the intelligent feeding system; In the dynamic proportioning server, the specific formula for the quicklime addition ratio is as follows: Quicklime addition ratio α% = a1 × antimony content of antimony powder ore + a2 × smelting furnace temperature + a3 × sulfur dioxide concentration in flue gas + a4 × carbon dioxide concentration in flue gas + b1; Wherein: a1 is the adjustment coefficient for the antimony content of antimony powder ore, ranging from ±0.05 to 0.2; a2 is the adjustment coefficient for the smelting furnace temperature, ranging from ±0.0001 to 0.0005; a3 is the adjustment coefficient for the sulfur dioxide concentration in the flue gas, ranging from ±0.1 to 0.3; a4 is the adjustment coefficient for the carbon dioxide concentration in the flue gas, ranging from ±0.05 to 0.15; b1 is the constant term for the quicklime addition ratio, ranging from 4.0% to 8.0% of the briquette addition amount; The specific formula for the coke addition ratio is as follows: Coke addition ratio β% = c1 × antimony content of smelting product + c2 × smelting furnace temperature + c3 × carbon dioxide concentration in flue gas + b2; Where: c1 is the adjustment coefficient for the antimony content of the smelting product, ranging from ±0.1 to 0.3; c2 is the adjustment coefficient for the smelting furnace temperature, ranging from ±0.001 to 0.003; c3 is the adjustment coefficient for the carbon dioxide concentration in the flue gas, ranging from ±0.1 to 0.3; b2 is the constant term for the coke addition ratio, ranging from 30% to 40% of the total amount of antimony-containing materials added, including briquettes and lump ore. The specific formula for the addition ratio of antimony ore is as follows: Antimony lump ore ratio γ% = d1 × antimony lump ore grade + d2 × smelting furnace temperature + d3 × iron ore grade + d4 × sulfur dioxide concentration in flue gas + b3; Wherein: d1 is the adjustment coefficient for the grade of antimony lump ore, ranging from ±0.2 to 0.5; d2 is the adjustment coefficient for the smelting furnace temperature, ranging from ±0.0005 to 0.002; d3 is the adjustment coefficient for the grade of iron ore, ranging from ±0.1 to 0.2; d4 is the adjustment coefficient for the concentration of sulfur dioxide in the flue gas, ranging from ±0.1 to 0.2; b3 is the constant term for the addition ratio of antimony lump ore, ranging from 0% to 20% of the batch amount of this batch; The specific formula for the iron ore addition ratio is as follows: Iron ore ratio δ% = e1×iron ore grade + e2×smelting furnace temperature + e3×antimony lump ore grade + e4×antimony ore silicon content + e5×antimony ore calcium content + e6×antimony ore iron content + b4; Among them: e1 is the adjustment coefficient for iron ore grade, ranging from ±0.3 to 0.6; e2 is the adjustment coefficient for smelting furnace temperature, ranging from ±0.001 to 0.005; e3 is the adjustment coefficient for antimony lump ore grade, ranging from ±0.2 to 0.5; e4 is the adjustment coefficient for silicon content of antimony ore, ranging from ±0.1 to 0.3; e5 is the adjustment coefficient for calcium content of antimony ore, ranging from ±0.05 to 0.25; e6 is the adjustment coefficient for iron content of antimony ore, ranging from ±0.1 to 0.3; b4 is the constant term for the iron ore addition ratio, ranging from 4% to 15% of the batch amount of this batch; The specific formula for limestone addition ratio is as follows: Limestone ratio ε% = d1 × limestone grade + f2 × smelting furnace temperature + f3 × antimony lump ore grade + f4 × antimony ore silicon content + f5 × antimony ore calcium content + b5; Among them: f1 is the adjustment coefficient of limestone grade, which is ±0.4~0.8; f2 is the adjustment coefficient of smelting furnace temperature, which is ±0.002~0.01; f3 is the adjustment coefficient of antimony lump ore grade, which is ±0.4~0.8; f4 is the adjustment coefficient of antimony ore silicon content, which is ±0.2~0.6; f5 is the adjustment coefficient of antimony ore calcium content, which is ±0.10~0.3; b5 is the constant term of limestone addition ratio, which is 5%-26% of the batch amount of this batch.

2. The feeding control method for the antimony volatilization smelting process according to claim 1, wherein the feeding system of the antimony volatilization smelting process is used to transport materials to the smelting furnace for volatilization smelting, and the materials include quicklime, antimony powder ore, antimony lump ore, coke, iron ore, limestone, foaming slag and agglomerated oxygen, characterized in that: The feeding system of the antimony volatilization smelting process includes a grab crane, conveying equipment, a briquette preparation module, a metering silo, a feeding bell, and an intelligent control and analysis module; The grab crane can transfer the materials to the input end of the briquette preparation module and the metering silo; The briquette preparation module can prepare quicklime and antimony powder into briquette, and transport them to the feeding bell through the conveying equipment; Antimony ore, coke, iron ore, limestone, foam slag and agglomerated oxygen are stored and measured respectively through a metering silo and transported to the feeding bell through the conveying equipment; The charging bell is connected to the smelting furnace, and the charging bell can feed materials into the smelting furnace; The intelligent control and analysis module is electrically connected to the grab crane, the conveying equipment, the metering silo, the briquette preparation module, the metering silo and the feeding clock respectively, and the intelligent control and analysis module can control the grab crane, the conveying equipment, the metering silo, the briquette preparation module and the feeding clock to cooperate in performing intelligent feeding operations.

3. The feeding control method for antimony volatilization smelting process according to claim 2, characterized in that: The briquette preparation module includes a fine ore bin, a quantitative feeder, a drum mixer, a disc granulator and a briquette metering bin; Quicklime and antimony powder ore are stored in the powder ore bin respectively; A quantitative feeder is provided between each of the fine ore bins and the drum mixer, and the quantitative feeder can quantitatively feed the quicklime and antimony fine ore in the fine ore bin into the drum mixer; The drum mixer can mix quicklime and antimony powder ore to obtain a mixed material, and transport the mixed material to the disc granulator through the conveying equipment; The disc granulator can pelletize the mixed material to obtain pellets; The agglomerate metering bin is in communication with the disc pelletizer and is used for storing the agglomerates obtained by the disc pelletizer, and the agglomerate metering bin is in communication with the feeding bell.

4. The feeding control method for antimony volatilization smelting process according to claim 3, characterized in that: The intelligent control and analysis module includes an X-ray fluorescence analyzer, a multi-parameter sensor group, a dynamic proportioning server and a DCS control platform; The X-ray fluorescence analyzer can perform real-time analysis on the antimony powder ore and the smelting products of the smelting furnace to obtain corresponding composition data; The multi-parameter sensor group is arranged on the smelting furnace, and is used to detect the temperature, pressure and flue gas composition in the smelting furnace in real time to obtain real-time status data of the smelting furnace; The dynamic proportioning server is electrically connected to the X-ray fluorescence analyzer and the multi-parameter sensor group respectively, and the dynamic proportioning server can calculate the optimal material addition ratio according to the component data and real-time status data; The DCS control platform is electrically connected to the dynamic proportioning server, the grab crane, the conveying equipment, the charging bell, the smelting furnace, the quantitative feeder, the metering silo and the briquette metering silo respectively.

5. The feeding control method for antimony volatilization smelting process according to claim 4, characterized in that: The feeding bell includes an upper bell cover, a lower bell cover and a distribution device. The upper bell cover is used to store materials fed by the conveying equipment, and a pneumatic unloading valve is provided between the upper bell cover and the conveying equipment; the lower bell cover is arranged between the upper bell cover and the smelting furnace; the distribution device is arranged between the upper bell cover and the lower bell cover, and is used to evenly distribute the materials in the smelting furnace; the feeding control method of the antimony volatilization smelting process also includes a pneumatic unloading valve, which is arranged between the feeding bell and the conveying equipment, and is used to control the switch at the connection point between the conveying equipment and the feeding bell, and the pneumatic unloading valve is electrically connected to the DCS control platform.

6. The method for controlling the feeding of antimony volatilization smelting process according to claim 5, characterized in that: The existing smelting parameters in S2 include: basicity, pre-desulfurization rate, batch size and briquette addition amount; the composition data in S7 include: antimony content, sulfur content, silica content, alumina content, iron content and calcium oxide content; the real-time status data in S3 include: smelting furnace temperature, sulfur dioxide concentration in flue gas and carbon dioxide concentration in flue gas.

7. The method for controlling the feeding of antimony in a volatilization smelting process according to claim 6, characterized in that: The S2 includes: S2.1, the DCS control platform controls the quantitative feeders corresponding to antimony powder ore and quicklime to feed them into the drum mixer according to the optimal material addition ratio to obtain a mixed material; S2.

2. Use a conveying device to convey the mixed material to a disc pelletizer for agglomeration to obtain pellets; perform real-time particle size detection on the pellets, specifically comprising the following steps: ①. Carry out real-time particle size detection on the aggregates to obtain the average particle size of the aggregates; ②. If the average particle size of the aggregates meets the requirements, proceed to S2.3; otherwise, the DCS control platform activates the automatic particle size adjustment mechanism and returns to ①; S2.

3. The pellets that meet the requirements are regarded as briquette and stored in the briquette measuring bin; S2.

4. Use temperature and humidity sensors to detect the temperature and humidity in the pellet metering bin. After natural air drying, if the temperature and humidity in the pellet metering bin reach the set threshold, proceed to S3. The DCS control platform in S2.2 starts the automatic adjustment of particle size mechanism specifically as follows: When the average particle size of the briquette is less than 10 mm, the inclination angle of the disc pelletizer is increased by 5° on the basis of the initial inclination angle, and the speed is increased by 5 r / min on the basis of the initial speed; When the average particle size of the agglomerates is 10mm-20mm, the disc pelletizer maintains the initial tilt angle and initial speed to produce agglomerates, ensuring that the particle size of the mixed material increases at a uniform rate; When the average particle size of the agglomerates is 20 mm to 25 mm, the inclination angle of the disc granulator is reduced by 10° based on the initial inclination angle, and the rotation speed is reduced by 10 r / min based on the initial rotation speed.

8. The method for controlling the feeding of antimony volatilization smelting process according to claim 7, characterized in that: In S1, the material level detection sensor is used to measure the real-time material level data of the briquette metering bin, each powder bin and each metering bin respectively. When the material level data reaches the set material level upper limit, the transportation of the corresponding material is stopped; when the material level data reaches the set material level lower limit, the grab crane is started to transport the corresponding material, and when the material level data reaches the set material level upper limit, the transportation of the material is stopped; In S5, each material of this batch is weighed twice using an electronic belt scale before being transported to the feeding bell; Each metering silo is respectively provided with a quantitative feeder.

9. The method for controlling the feeding of antimony volatilization smelting process according to claim 8, characterized in that: The DCS control platform includes a batching control part, a metering and feeding control part, a conveying equipment control part, a smelting furnace control part, and a data monitoring and feedback control part. The batching control part can receive the current addition ratio instruction of the dynamic proportioning server and the material addition amount fed back by the briquette metering bin, each powder bin and each metering bin, and adjust the current material addition amount according to the addition ratio instruction through the PID control algorithm; The metering and feeding control part can receive the weight signal of the electronic belt scale corresponding to each material and the rotation speed of the quantitative feeder, and adjust the rotation speed of the quantitative feeder based on the weight signal of the electronic belt scale; The conveying equipment control part is capable of receiving the operating status data and material location information fed back by the conveying equipment, and adjusting the operating speed of the conveying equipment and the start and stop sequence of each conveying equipment according to the operating status data and material location information; The smelting furnace control part is capable of receiving real-time status data fed back by the multi-parameter sensor group and adjusting the operating parameters of the combustion device, the stirring device and the distribution device in the smelting furnace according to the real-time status data; The data monitoring and feedback control part can receive data fed back by the X-ray fluorescence analyzer and the multi-parameter sensor group, and input it into the dynamic proportioning server to output a new addition ratio instruction, and then use the new addition ratio instruction to update the current addition ratio instruction in the ingredient control part.

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