Flue gas and steam efficient separation method, system and device for metallurgical condensation process

Abstract

The invention relates to the technical field of metallurgical furnace flue gas treatment equipment, in particular to a flue gas and steam efficient separation method, system and device for a metallurgical condensation process. The method comprises the steps that the baffle valves are adjusted in real time according to different process stages, so that gas in the furnace enters the corresponding channels; when the condensation process is started, the steam channel is opened and condensation is started; in the smelting stage, the flue gas pipeline is opened, and the condensation system is stopped after continuously operating for a period of time in consideration that high-temperature steam which is not completely cooled still exists in the steam pipeline and the condensation tower at the moment. The system comprises a stage judgment module, a gas distribution module and a gas processing module. Aiming at a condensation process, smelting flue gas and condensation steam are separately treated, so that the negative effects of poor dust removal effect, quick loss of pipelines and dust removers and the like caused by mixing of the smelting flue gas and the condensation steam are avoided, the service life of equipment is prolonged, and the working efficiency is improved; and the high-temperature steam is condensed into water for recycling, so that the process cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical furnace fume treatment equipment, and in particular to a method, system and device for efficiently separating fume and steam used in a metallurgical condensation process. Background Art

[0002] In the smelting of non-ferrous metals, the crude metal obtained after smelting in the molten pool needs to be further refined to remove the impurities remaining in the crude metal. The condensation method is a commonly used crude metal refining method, which mainly adds water or other materials to the high-temperature crude metal liquid after smelting, and uses the difference in solidification points between the target metal and the impurities to make the impurities solidify and precipitate, and then uses a slag scooping device to remove the solidified impurities to complete the impurity removal. A large amount of steam will be generated after the added water contacts the high-temperature molten metal. In the current process, the channel through which the generated water vapor is discharged from the reactor is the channel through which the flue gas is discharged during the smelting stage. The smoke particles carried by the first discharged flue gas and the condensed water generated by the later discharged steam are mixed in the flue and dust collector, forming siltation, which can easily lead to blockage of the flue and reduction of the performance of the dust collector. Therefore, there is an urgent need for a method to avoid the mixing of water vapor and smoke, so as to avoid the above-mentioned situation that is not conducive to production operations.

[0003] Prior art 1, Chinese patent, application number 202410779228.9 discloses a waste heat recovery and utilization system for regenerated aluminum smelting, including a flue gas main pipe, the flue gas main pipe is connected to a waste heat boiler, the steam outlet of the waste heat boiler is connected to a steam accumulator; the steam outlet of the steam accumulator is connected to a steam-water separator; the steam outlet of the steam-water separator is connected to a gas turbine; the gas turbine is connected to a condenser; the water outlet of the condenser is connected to the waste heat boiler; the exhaust outlet of the waste heat boiler is connected to a dust collector; the flue gas main pipe is also connected to a bypass heat exchanger; the air outlet of the bypass heat exchanger is connected to a dust collector; the bypass heat exchanger is connected in parallel with the waste heat boiler. Although the setting of the steam accumulator can stabilize the pressure and flow of the flue gas of the regenerated aluminum smelting equipment to meet the steam requirements for stable production of the steam turbine; but it depends on precise operating conditions, and improper operation may lead to reduced system efficiency or equipment damage.

[0004] Prior art 2, Chinese patent, application number 202410492648.9 discloses a cement kiln waste heat power generation system and power generation method, including a waste heat boiler, a high-pressure part of a steam turbine, a low-pressure part of a steam turbine, a condenser, a deaerator and a generator. The waste heat boiler generates supplementary steam and main steam by heating high-temperature flue gas. The supplementary steam enters the supplementary steam drum, and the main steam enters the main steam drum. The main steam drum is connected to the high-pressure cylinder of the high-pressure part of the steam turbine, and the supplementary steam drum is connected to the low-pressure cylinder of the low-pressure part of the steam turbine. It also includes a steam-water separation device, the steam inlet of the steam-water separation device is connected to the steam extraction port of the high-pressure part of the steam turbine, and the steam outlet is connected to the low-pressure cylinder of the low-pressure part of the steam turbine. The steam-water separation device separates wet steam into dry saturated steam and saturated water. The dry saturated steam continues to work in the low-pressure cylinder, which can increase the power generation power of the generator. The enthalpy value of saturated water is much lower than the enthalpy value of exhaust steam discharged after work. Although it helps to improve the power generation capacity of the waste heat power generation system of the cement kiln, the waste gas of the cement kiln contains a large amount of dust and the dust hardness is high, which can easily lead to wear and dust accumulation problems of the waste heat boiler tube bundle.

[0005] Prior art three, Chinese patent, application number 202410152598.X discloses a lime kiln waste heat boiler with low-grade external saturated steam recovery and its use method, including a smoke inlet pipe, a boiler drum, and an equal-flow water-to-water heat exchange module. The smoke inlet pipe is provided with a smoke inlet and a smoke outlet. The smoke inlet pipe is provided with a superheater, an evaporator, and an economizer assembly arranged in sequence from the smoke inlet to the smoke outlet. The equal-flow water-to-water heat exchange module regulates the feed water temperature of the boiler drum through the economizer assembly. The boiler drum is respectively connected to the superheater and the evaporator, and the outlet header of the superheater is connected to the steam collecting header. Although the equal-flow water-to-water heat exchange module regulates the feed water temperature of the boiler to ensure that the feed water temperature entering the boiler drum under normal and special operating conditions is higher than the flue gas leakage point temperature, effectively reducing the condensation of lime dust on the pipe wall, and the resulting dust adsorption and other problems that affect the heat exchange of the boiler drum and even cause blockage; however, during the operation of the waste heat boiler, a large amount of dust will adhere to the pipes of the superheater, evaporator and economizer, gradually forming an insulation layer, which affects the heat exchange efficiency.

[0006] At present, the existing technologies 1, 2 and 3 have the problem that the channel for the generated water vapor to be discharged from the reactor is the channel for the flue gas to be discharged during the smelting stage, and the smoke particles carried by the flue gas discharged first and the condensed water generated by the steam discharged later are mixed in the flue and dust collector, forming siltation, which easily leads to the blockage of the flue and the reduction of the performance of the dust collector. Therefore, the present invention proposes a method, system and device for the efficient separation of flue gas and steam for metallurgical condensation process. Summary of the invention

[0007] The main purpose of the present invention is to provide a method, system and device for efficiently separating flue gas and steam for metallurgical condensation process, so as to solve the problem that the channel through which water vapor generated in the prior art is discharged from the reactor is also the channel through which flue gas is discharged in the smelting stage, and the smoke particles carried by the flue gas discharged first and the condensed water generated by the steam discharged later are mixed in the flue and dust collector areas to form siltation, which easily leads to blockage of the flue and reduction of dust collector performance.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A method for efficiently separating flue gas and steam for a metallurgical condensation process, the method comprising:

[0010] The current process of the system is determined based on the temperature in the furnace; if the temperature is higher than the preset threshold, it is the smelting stage; if the temperature is lower than the preset threshold, it is the condensation stage; the damper valve is adjusted in real time according to different process stages to allow the gas in the furnace to enter the corresponding channel;

[0011] When the condensation process starts and the water inlet in the furnace starts to inject water, the damper valve synchronously adjusts the passage to the steam channel, the water pump of the condensation system starts to condense, and the sensor of the water storage part starts to detect. If the liquid level is greater than the preset liquid level, that is, the minimum liquid level of the circulation in the condensation system is met, the drainage outlet is opened to discharge the accumulated water from the condensation tower and use it again for condensation;

[0012] When entering the smelting stage, the baffle valve adjusts the passage to the flue gas duct. Considering that there is still high-temperature steam that has not been completely cooled in the steam pipe and the condensation tower, the condensation system continues to run for a period of time before stopping.

[0013] As a further improvement of the present invention, judging the current process of the system according to the temperature in the furnace includes:

[0014] Analyze historical temperature data to identify typical temperature ranges at different process stages; dynamically adjust temperature thresholds based on real-time temperature changes in the current furnace;

[0015] Set a time window and continuously monitor the temperature change within this window; only when the temperature is continuously stable above or below a certain threshold within the time window, it is determined to enter the corresponding process stage;

[0016] According to the defined fuzzy rules, the applicability of each rule is evaluated to obtain the membership degree of each process stage; the fuzzy output is converted into a clear process stage judgment result through the center of gravity method; according to the defuzzified result, the current process stage is determined and the corresponding control strategy is executed.

[0017] As a further improvement of the present invention, the process of adjusting the flapper valve after executing the corresponding control strategy includes:

[0018] A temperature sensor is set up to collect temperature data of the exhaust gas from the furnace and transmit the collected data to the data control center;

[0019] The collected gas temperature data is preprocessed, and the preprocessed temperature data is compared with the preset temperature threshold; if the temperature is higher than the preset temperature threshold, the furnace is in the smelting stage, and a smelting signal is sent to the cylinder; if the temperature is lower than the preset threshold, the furnace is in the condensation stage, and a condensation signal is sent to the cylinder;

[0020] After the cylinder receives the smelting signal, it pressurizes and pushes the baffle to the steam pipe to open the flue gas pipe; after the cylinder receives the condensation signal, it decompresses and pulls the baffle to the flue gas pipe to open the steam pipe.

[0021] As a further improvement of the present invention, the process of determining that the liquid level is greater than a preset liquid level includes:

[0022] In the water storage part of the condensing system, multiple liquid level sensors are arranged. Each sensor collects liquid level data in real time at a frequency of milliseconds and transmits the data to the central control system through a high-speed data transmission channel. After receiving the liquid level data, the central control system performs data preprocessing.

[0023] The central control system presets two key liquid level thresholds: the minimum liquid level threshold and the maximum liquid level threshold, which are obtained based on the operating requirements of the condensing system and historical data analysis; the liquid level thresholds are dynamically adjusted based on real-time liquid level data and the operating status of the condensing system;

[0024] When the liquid level data of the water storage part is continuously higher than the minimum liquid level threshold, and the liquid level data of multiple sensors are consistent, it is determined that the current liquid level meets the minimum liquid level requirement of the circulation in the condensation system; when the liquid level meets the minimum liquid level requirement, the system opens the drain outlet to discharge the accumulated water from the condensation tower and apply it to the condensation process again.

[0025] As a further improvement of the present invention, the process of dynamically adjusting the liquid level threshold includes:

[0026] The central control system first analyzes the real-time liquid level data received and compares it with the historical liquid level data. By analyzing the liquid level change trend, seasonal fluctuations and the impact of emergencies on the liquid level in the historical data, the normal fluctuation range and abnormal fluctuation pattern of the liquid level are identified.

[0027] According to the current operating status of the condensing system, the dynamic change requirements of the liquid level are evaluated; based on the results of data analysis and operating status evaluation, the central control system uses an adaptive algorithm to calculate the new liquid level threshold;

[0028] The calculated new liquid level threshold is updated in real time through the central control system. After each liquid level threshold adjustment, the liquid level data before and after the adjustment, the system operating status and the adjustment effect are recorded to form a closed-loop feedback.

[0029] As a further improvement of the present invention, the process of the central control system using an adaptive algorithm to calculate a new liquid level threshold includes:

[0030] Monitor the operating status of the condensing system in real time, collect the operating data of each component of the system through the sensor network, and build a comprehensive operating status model; based on the operating status model, evaluate the dynamic change requirements of the liquid level, analyze the impact of load changes on the liquid level, and determine the adjustment direction and amplitude of the liquid level threshold;

[0031] Initialize PID controller parameters and set initial thresholds based on historical data and expert experience; input the extracted features and operating status data into the adaptive algorithm model to calculate new liquid level thresholds in real time;

[0032] The calculated new liquid level threshold is updated in real time through the central control system.

[0033] To achieve the above object, the present invention also provides the following technical solutions:

[0034] A flue gas and steam high-efficiency separation system for a metallurgical condensation process, which is applied to the high-efficiency separation method for flue gas and steam for a metallurgical condensation process, and the high-efficiency separation system for flue gas and steam for a metallurgical condensation process comprises:

[0035] The stage judgment module is responsible for monitoring the temperature in the furnace and preprocessing the collected temperature data. It compares the preprocessed temperature data with the preset temperature threshold to judge the stage of the current process. If the temperature is higher than the preset temperature threshold, the furnace is in the smelting stage, and a smelting signal is sent to the gas diversion module; if the temperature is lower than the preset threshold, the furnace is in the condensation stage, and a condensation signal is sent to the gas diversion module.

[0036] The gas diversion module is responsible for setting the damper valve to control the different flow directions of water vapor and flue gas. When the smelting signal is received, the flue gas pipeline is opened and the flue gas flows to the rear dust removal device; when the condensation signal is received, the water vapor pipeline is opened and the steam flows to the steam collection device through another pipeline;

[0037] The gas processing module is responsible for setting up the condensation system and the dust removal device respectively, and is responsible for the corresponding treatment of water vapor and flue gas.

[0038] As a further improvement of the present invention, the gas flow splitting module comprises:

[0039] The signal discrimination submodule is responsible for comparing the received electrical signal with the reference threshold signal after receiving the electrical signal sent by the stage judgment module. When the received electrical signal is greater than the reference signal, it is judged to be a smelting signal; when the received electrical signal is less than the reference signal, it is judged to be a condensation signal;

[0040] The pressure control submodule is responsible for pressurizing or depressurizing the cylinder according to the signal result determined by the signal discrimination submodule; if it is determined to be a smelting signal, the pressure in the cylinder is increased; if it is determined to be a condensation signal, the pressure in the cylinder is reduced;

[0041] The channel switching submodule is composed of a baffle, a slide groove and a slide rail. When the pressure in the cylinder increases, the baffle moves to the water vapor pipe under the action of pressure to open the flue gas pipe. When the pressure in the cylinder decreases, the baffle moves to the flue gas pipe under the tension to open the water vapor pipe.

[0042] As a further improvement of the present invention, the gas processing module comprises:

[0043] The condensation submodule, a small amount of water is pre-injected into the water storage part for the initial stage of condensation. When the high-temperature steam enters the condensation submodule from the high-temperature steam inlet, the pre-injected water is sprayed out from the spray head under the pressure of the water pump; the high-temperature steam entering the condensation tower is cooled and condensed into liquid water under the triple effects of natural cooling, spraying and heat exchange and blocking of the cooling device, and falls into the water storage part;

[0044] The liquid level submodule has a liquid level sensor installed at the bottom of the water storage part. When the liquid level is detected to be greater than the preset level, that is, the minimum liquid level of the internal circulation of the condensation system is met, the drain port is opened to discharge the accumulated water from the condensation tower and use it for condensation;

[0045] The dust removal submodule is provided with a collection device and a pressure sensor in the dust removal device. The flue gas enters the dust removal device and is filtered and separated. The dust particles fall into the collection device of the dust removal device. The treated clean gas is transported to the next process link through the vacuum pump. When the value of the pressure sensor in the collection device reaches the preset threshold, an alarm sounds and the light flashes to remind the staff to deal with it in time.

[0046] To achieve the above object, the present invention also provides the following technical solutions:

[0047] A flue gas and steam high-efficiency separation device for metallurgical condensation process, which is applied to the high-efficiency separation method of flue gas and steam for metallurgical condensation process, and the high-efficiency separation device of flue gas and steam for metallurgical condensation process comprises: a reactor, a water injection port, a baffle valve, a water vapor pipeline, a flue gas pipeline, a dust removal device, an air pump, a spray water supply pipe, a water treatment device, a spray nozzle and a condensation tower;

[0048] Among them, a water inlet is opened on the upper side wall of the reactor, which is connected to the baffle valve through a pipe. After passing through the baffle valve, the water vapor pipe enters the water storage device, and the flue gas pipe enters the dust removal device; a high-temperature steam inlet is arranged at the lower part of the water storage device, and a water treatment device is arranged at the bottom on the opposite side of the water vapor pipe, and a spray water supply pipe connects the water treatment device with the top of the spray nozzle; an exhaust fan is arranged on the side opposite to the dust removal device and the flue gas pipe, and the spray water supply pipe, the water treatment device and the spray nozzle together constitute a condensation tower.

[0049] The present invention aims at the condensation process, and processes the smelting flue gas and the condensate steam separately, which effectively avoids the negative effects of the mixing of the two, such as poor dust removal effect, fast loss of pipelines and dust collectors, and improves the equipment life and work efficiency; the high-temperature steam is condensed into water and recycled again, which reduces the process cost and effectively reduces the waste of water resources; the operation of the entire system is intelligently controlled, the production efficiency is improved, and labor is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic flow chart of steps of an embodiment of a method for efficiently separating flue gas and steam in a metallurgical condensation process according to the present invention;

[0051] Figure 2 This is a schematic flow chart of the steps of judging the current process of the system according to the temperature in the furnace in one embodiment of the method for efficiently separating flue gas and steam in a metallurgical condensation process of the present invention;

[0052] Figure 3 This is a schematic flow chart of the steps of judging that the liquid level is greater than the preset liquid level in one embodiment of the method for efficiently separating flue gas and steam in a metallurgical condensation process of the present invention;

[0053] Figure 4 It is a functional module schematic diagram of an embodiment of a system for efficiently separating flue gas and steam for metallurgical condensation process of the present invention;

[0054] Figure 5 It is a schematic diagram of an embodiment of a system for efficiently separating flue gas and steam used in a metallurgical condensation process according to the present invention;

[0055] Figure 6 It is a structural schematic diagram of an embodiment of a flue gas and steam efficient separation device for metallurgical condensation process of the present invention;

[0056] Figure 7 It is a schematic diagram of the disassembled structure of a baffle valve of one embodiment of a flue gas and steam efficient separation device for a metallurgical condensation process of the present invention;

[0057] Figure 8 It is a schematic diagram of the structure of a baffle valve of an embodiment of a flue gas and steam efficient separation device for a metallurgical condensation process of the present invention;

[0058] Fig. 9 It is a schematic diagram of the relative matching relationship between the baffle and the shell of one embodiment of the flue gas and steam efficient separation device for metallurgical condensation process of the present invention;

[0059] Fig.10 This is a schematic diagram of the position of the baffles when the upper and lower channels are opened in one embodiment of the flue gas and steam efficient separation device for metallurgical condensation process of the present invention;

[0060] Fig.11 It is a schematic structural diagram of a steam condensing device of one embodiment of a device for efficiently separating flue gas and steam used in a metallurgical condensation process of the present invention;

[0061] Fig.12 It is a structural schematic diagram of an embodiment of an electronic device of the present invention;

[0062] Fig.13 It is a schematic structural diagram of an embodiment of the storage medium of the present invention. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] The terms "first", "second" and "third" in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" and "third" can explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0065] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0066] like Figure 1 As shown, this embodiment provides an embodiment of a method for efficiently separating flue gas and steam for a metallurgical condensation process. In this embodiment, the method for efficiently separating flue gas and steam for a metallurgical condensation process includes:

[0067] Step S1: judging the current process of the system according to the temperature in the furnace; if the temperature is higher than the preset threshold, it is the smelting stage, and if the temperature is lower than the preset threshold, it is the condensation stage; adjusting the damper valve in real time according to different process stages to allow the gas in the furnace to enter the corresponding channel;

[0068] Step S2: When the condensation process starts and the water inlet in the furnace starts to inject water, the damper valve synchronously adjusts the passage to the steam channel, the water pump of the condensation system starts to condense, and the sensor of the water storage part starts to detect. If the liquid level is greater than the preset liquid level, that is, the minimum liquid level of the circulation in the condensation system is met, the drainage outlet is opened to discharge the accumulated water from the condensation tower and use it again for condensation;

[0069] Step S3: When entering the smelting stage, the damper valve adjusts the passage to the flue gas duct. Considering that there is still high-temperature steam that has not been completely cooled in the steam pipe and the condensation tower, the condensation system accumulates and runs for a period of time before stopping.

[0070] Preferably, step S1 of this embodiment determines the current process stage of the system in real time according to the temperature in the furnace, and adjusts the baffle valve in real time according to different process stages to allow the gas in the furnace to enter the corresponding channel; in step S2, when the condensation process starts, the baffle valve synchronously adjusts the passage to the steam channel, and the water pump of the condensation system starts to start the condensation process; the sensor of the water storage part monitors the liquid level in real time, and when the liquid level reaches the preset value, the drain outlet is opened to discharge the accumulated water for reuse; in step S3, when entering the smelting stage, the baffle valve adjusts the passage to the flue gas pipe; considering the high-temperature steam in the steam pipe and the condensation tower, the condensation system continues to run for a period of time before stopping.

[0071] To sum up, this embodiment realizes the automatic control of the process and improves the production efficiency and accuracy; by precisely controlling the flow path of the gas in the furnace, the smooth progress of each process stage is ensured; the timely startup and efficient operation of the condensation system are ensured; through real-time monitoring and automatic control of sensors, excessive accumulation of condensed water is avoided, and the resource utilization efficiency is improved; the reuse of condensed water is realized, and water resources are saved; it is ensured that the flue gas can be discharged smoothly, and production accidents caused by channel errors are avoided; by continuing to run the condensation system for a period of time, the high-temperature steam in the steam pipe and the condensation tower is ensured to be completely cooled, and equipment damage or safety hazards caused by sudden shutdown are avoided; the service life and safety of the equipment are improved.

[0072] Furthermore, if Figure 2 As shown, in step S1, judging the current process of the system according to the temperature in the furnace specifically includes the following steps:

[0073] Step S11: Analyze historical temperature data to identify typical temperature ranges in different process stages; for example, the temperature in the smelting stage is usually above 1200°C, and the temperature in the condensation stage is below 800°C; dynamically adjust the temperature threshold according to the real-time temperature changes in the current furnace;

[0074] Step S12: a 10-minute time window is set, and the temperature change is continuously monitored within this window; only when the temperature is continuously stable above or below a certain threshold within the time window, it is determined to enter the corresponding process stage; for example, if the temperature is higher than 1200°C for 10 minutes, it is determined to be the smelting stage;

[0075] Step S13: According to the defined fuzzy rules, the applicability of each rule is evaluated to obtain the membership degree of each process stage; the fuzzy output is converted into a clear process stage judgment result through the centroid method; according to the defuzzified result, the current process stage is determined and the corresponding control strategy is executed;

[0076] Among them, set fuzzy sets, low temperature: fuzzy set between 0℃ and 800℃; medium temperature: fuzzy set between 800℃ and 1200℃; high temperature: fuzzy set above 1200℃; fuzzy rule definition: Rule 1: If the temperature is low temperature and the temperature change rate is slowly decreasing, the process stage is the condensation stage; Rule 2: If the temperature is medium temperature and the temperature change rate is slowly increasing, the process stage is the transition stage; Rule 3: If the temperature is high temperature and the temperature change rate is slowly increasing, the process stage is the smelting stage; Fuzzy reasoning: input variables, real-time temperature and temperature change rate; fuzzification, map the real-time temperature and temperature change rate to the fuzzy set to obtain the corresponding membership; rule evaluation evaluates the applicability of each rule according to the fuzzy rules to obtain the membership of each process stage; defuzzification converts the fuzzy output into a clear process stage judgment result through the centroid method or the maximum membership method;

[0077] The expression of the centroid method is:

[0078]

[0079] In the formula, yi represents the weight factor, which represents the weight of the i-th process stage and is used to adjust the importance of different process stages. i ) represents a nonlinear function used to transform y i Perform nonlinear transformation to better adapt to complex process, j represents the th element in the additional fuzzy output set, representing the membership value of another process stage, v(z j ) represents the membership function of the jth element, which represents the membership value of the element in another fuzzy set, g(z j ) represents a nonlinear function used to calculate z j Nonlinear transformation is performed to better adapt to complex process. m represents the total number of elements in the additional fuzzy output set. Numerator: contains two summation terms; the first summation term considers the original fuzzy output set y i , and introduces the weight factor w i and the nonlinear function f(y i ); The second summation term introduces a new fuzzy output set z j , and used the new membership function v(z j ) and the nonlinear function g(z j );The denominator also contains two summation terms, which correspond to the two summation terms in the numerator and are used for normalization. By introducing these new variables and functions, the equation becomes more complex and can better meet the needs of complex process control.

[0080] Preferably, step S11 of this embodiment analyzes historical temperature data. By analyzing historical data, the system can identify the typical temperature range of different process stages and dynamically adjust the temperature threshold accordingly; the system can respond flexibly according to the actual situation and improve the accuracy of judgment. Significance: It ensures that the system's understanding of the process is based on actual data and experience, thereby improving the system's adaptive ability and reducing the need for human intervention. Step S12 sets a time window to monitor temperature changes. By setting a 10-minute time window, the system can continuously monitor temperature changes. Only when the temperature is stable above or below a certain threshold, it is determined to enter the corresponding process stage. This avoids misjudgment caused by instantaneous temperature fluctuations. Significance: It enhances the stability and reliability of the system and ensures that the judgment of the process stage is based on continuous and stable data rather than short-term fluctuations. Step S13 fuzzy rule evaluation and defuzzification. By defining fuzzy sets and fuzzy rules, the system can evaluate the applicability of each rule and obtain the membership of each process stage; through the centroid method or the maximum membership method, the fuzzy output is converted into a clear process stage judgment result, so that the system can handle complex and nonlinear temperature changes. Significance: The introduction of fuzzy logic enables the system to better handle uncertainty and complexity, and improves the accuracy and flexibility of judgment; at the same time, the defuzzification process ensures that the final judgment result is clear and executable.

[0081] In summary, the temperature judgment system of this embodiment not only improves the accuracy and stability of process identification, but also enhances the system's adaptability and ability to handle complex situations by combining historical data analysis, time window monitoring and fuzzy logic processing. It not only helps to improve production efficiency, but also ensures product quality and safety, and is an important manifestation of the development of modern industrial automation and intelligence. By introducing fuzzy logic algorithms, this embodiment can more accurately judge the process stage, especially in the case of complex temperature changes, which improves the robustness and adaptability of the system.

[0082] Further, the process of adjusting the flapper valve after executing the corresponding control strategy in step S13 specifically includes the following steps:

[0083] Step S131: Setting a temperature sensor to collect temperature data of the exhaust gas from the furnace, and transmitting the collected data to a data control center;

[0084] Step S132: pre-processing the collected gas temperature data, and comparing the pre-processed temperature data with a preset temperature threshold; if the temperature is higher than the preset temperature threshold, the furnace is in a smelting stage, and a smelting signal is sent to the cylinder; if the temperature is lower than the preset threshold, the furnace is in a condensation stage, and a condensation signal is sent to the cylinder;

[0085] Step S133: After receiving the smelting signal, the cylinder pressurizes and pushes the baffle to the steam pipe to open the flue gas pipe; after receiving the condensation signal, the cylinder decompresses and pulls the baffle to the flue gas pipe to open the steam pipe.

[0086] Preferably, step S131 of this embodiment collects data on the temperature of the exhaust gas from the furnace through a temperature sensor, and transmits the data to a data control center, thereby ensuring the accuracy and real-time nature of the data; step S132 preprocesses the collected temperature data, and then compares it with a preset temperature threshold, determines the smelting stage or condensation stage in the furnace based on the comparison result, and sends a corresponding signal to the cylinder; step S133 the cylinder performs corresponding pressurization or decompression operations based on the received smelting signal or condensation signal, thereby controlling the movement of the baffle to open the steam pipe or the flue gas pipe.

[0087] In summary, the real-time and accurate data collection of this embodiment helps to achieve precise control of the smelting process; realizes automated judgment of the smelting process, improving the accuracy and efficiency of the judgment; realizes specific control of the smelting process through physical operations, ensures the smooth progress of the smelting and condensation stages, and improves overall production efficiency and safety.

[0088] Furthermore, if Figure 3 As shown, the process of determining in step S2 that the liquid level is greater than the preset liquid level specifically includes the following steps:

[0089] Step S21: multiple liquid level sensors are arranged in the water storage part of the condensation system, each sensor collects liquid level data in real time at a frequency of milliseconds, and transmits the data to the central control system through a high-speed data transmission channel; after receiving the liquid level data, the central control system performs data preprocessing;

[0090] Step S22: The central control system presets two key liquid level thresholds: a minimum liquid level threshold and a maximum liquid level threshold, which are obtained based on the operation requirements of the condensing system and historical data analysis; the liquid level thresholds are dynamically adjusted based on the real-time liquid level data and the operating status of the condensing system;

[0091] Step S23: When the liquid level data of the water storage part is continuously higher than the minimum liquid level threshold, and the liquid level data of multiple sensors are consistent, it is determined that the current liquid level meets the minimum liquid level requirement of the circulation in the condensation system; when the liquid level meets the minimum liquid level requirement, the system opens the drain outlet to discharge the accumulated water from the condensation tower and apply it to the condensation process again.

[0092] Preferably, in step S21 of this embodiment, by arranging multiple liquid level sensors in the water storage part of the condensing system, the system can monitor the liquid level changes in real time to ensure the timeliness and accuracy of the data; the data collected by the sensor is quickly transmitted to the central control system through a high-speed data transmission channel, which reduces the delay of data transmission and improves the response speed of the system; the central control system pre-processes the received liquid level data, including data cleaning, correction and preliminary analysis, to provide a reliable data basis for subsequent liquid level judgment. Significance achieved: Real-time monitoring and high-speed data transmission ensure the accuracy and timeliness of liquid level data, help to timely discover liquid level anomalies and prevent system failures; through data pre-processing, the system can automatically identify and correct noise and errors in the data, and improve the overall reliability of the system. Step S22 The central control system dynamically adjusts the liquid level threshold according to the operating requirements of the condensing system and historical data analysis to ensure the rationality and adaptability of the threshold setting; the system can automatically adjust the liquid level threshold according to the real-time liquid level data and the operating status of the condensing system, realize adaptive control, and optimize the system operation efficiency. Significance achieved: Dynamic adjustment of the liquid level threshold enables the system to better adapt to different operating environments and requirements, and improves the operating efficiency and stability of the system; through dynamic threshold adjustment, the system can identify potential liquid level problems in advance, perform preventive maintenance, and reduce the occurrence of system failures. Step S23 When the liquid level data of the water storage part is continuously higher than the minimum liquid level threshold, and the liquid level data of multiple sensors are consistent, the system determines that the current liquid level meets the minimum liquid level requirement of the internal circulation of the condensation system; when the liquid level meets the minimum liquid level requirement, the system automatically opens the drainage outlet to discharge the accumulated water from the condensation tower, and re-apply it to the condensation process to achieve water recycling. Significance achieved: Through liquid level judgment, the system can ensure that the minimum liquid level requirement of the internal circulation of the condensation system is met, and prevent system failures caused by too low liquid level; the automatic drainage function enables the condensation system to efficiently recycle water resources, reduce water waste, and comply with the concept of sustainable development.

[0093] In summary, this embodiment ensures the stable operation and efficient management of the condensation system through real-time monitoring, dynamic adjustment and automatic control, and improves the reliability, operation efficiency and resource utilization of the system; through high-precision liquid level sensor arrangement, data preprocessing and filtering, dynamic adjustment of liquid level threshold, liquid level judgment and logical decision-making, as well as real-time feedback and closed-loop control, the system can accurately and quickly determine whether the liquid level is greater than the preset liquid level, and perform corresponding drainage operations to ensure the efficient operation of the metallurgical condensation process.

[0094] Furthermore, the process of dynamically adjusting the liquid level threshold in step S22 specifically includes the following steps:

[0095] Step S221: The central control system first analyzes the received real-time liquid level data and compares it with the historical liquid level data; by analyzing the liquid level change trend, seasonal fluctuations and the impact of emergencies on the liquid level in the historical data, the normal fluctuation range and abnormal fluctuation mode of the liquid level are identified;

[0096] Step S222: according to the current operating state of the condensing system, such as load change, ambient temperature, humidity and other factors, the dynamic change demand of the liquid level is evaluated; based on the results of data analysis and operating state evaluation, the central control system uses an adaptive algorithm to calculate a new liquid level threshold;

[0097] Step S223: The calculated new liquid level threshold is updated in real time through the central control system. After each adjustment of the liquid level threshold, the liquid level data before and after the adjustment, the system operating status and the adjustment effect are recorded to form a closed-loop feedback.

[0098] Preferably, in step S221 of this embodiment, data analysis and historical comparison are performed. By analyzing historical liquid level data, the system can identify long-term trends and short-term fluctuations of the liquid level, thereby predicting future liquid level changes; by comparing real-time data with historical data, the system can quickly identify abnormal fluctuations in the liquid level, such as sudden rises or falls, which may indicate system failures or external interference. Significance achieved: By understanding the normal fluctuation range of the liquid level, the system can more accurately predict future liquid level changes and make adjustments in advance; timely detection of abnormal fluctuations can prevent system failures or safety accidents caused by liquid level loss. Step S222 operation status evaluation and adaptive algorithm: according to the current operating status of the condensing system, such as load changes, ambient temperature and humidity, the system can dynamically adjust the liquid level threshold to ensure operation in the optimal state; the adaptive algorithm can automatically optimize the liquid level threshold according to real-time data and operating status without manual intervention. Significance achieved: Dynamic adjustment of the liquid level threshold enables the system to maintain optimal performance under different operating conditions and improve energy efficiency; the application of the adaptive algorithm reduces the frequency and complexity of manual adjustments, reduces operating costs and the risk of human errors. Step S223 real-time update and closed-loop feedback, real-time update of the liquid level threshold, ensures that the system can respond quickly to liquid level changes and maintain stable operation; after each adjustment, the system will record the liquid level data, operating status and effect before and after the adjustment, forming a complete feedback loop. Significance achieved: Through closed-loop feedback, the system can continuously learn and optimize the adjustment strategy of the liquid level threshold, improve the system's adaptability and stability; detailed adjustment records help to quickly find the cause of the fault and provide data support for system maintenance and improvement.

[0099] In summary, the process of dynamically adjusting the liquid level threshold in this embodiment ensures the efficient, safe and stable operation of the condensing system through data analysis, adaptive algorithms and real-time feedback. This not only improves the performance and safety of the system, but also reduces the need for manual intervention, providing a solid foundation for continuous optimization and troubleshooting of the system.

[0100] Furthermore, in step S222, the process in which the central control system uses an adaptive algorithm to calculate a new liquid level threshold specifically includes the following steps:

[0101] Step S2221: monitor the operating status of the condensing system in real time, including factors such as load changes, ambient temperature, and humidity; collect operating data of various components of the system through a sensor network to build a comprehensive operating status model; based on the operating status model, evaluate the dynamic change requirements of the liquid level, analyze the impact of load changes on the liquid level, and determine the adjustment direction and amplitude of the liquid level threshold;

[0102] Step S2222: Initialize PID controller parameters and set initial thresholds based on historical data and expert experience; input the extracted features and operating status data into the adaptive algorithm model to calculate new liquid level thresholds in real time;

[0103] Step S2223: The calculated new liquid level threshold is updated in real time through the central control system.

[0104] Preferably, in step S2221 of this embodiment, real-time monitoring and data collection can fully understand the current operating environment by real-time monitoring of the operating status of the condensing system, including factors such as load changes, ambient temperature, and humidity; a comprehensive operating status model is constructed through the data collected by the sensor network, providing a solid foundation for adjusting the liquid level threshold. Significance achieved: It ensures that the system has a comprehensive perception of the current operating environment, provides accurate data support for intelligent decision-making, improves the response speed and accuracy of the system, and helps prevent potential operating problems. Step S2222 Initialization and adaptive calculation initializes the PID controller parameters, sets the initial threshold based on historical data and expert experience, and provides a reasonable starting point for the adaptive algorithm; the extracted features and operating status data are input into the adaptive algorithm model, and the new liquid level threshold is calculated in real time, ensuring that the dynamic adjustment of the threshold can adapt to the changing operating conditions. Significance achieved: The intelligent adjustment of the liquid level threshold is realized, so that the system can maintain optimal performance under different operating conditions; the adaptive ability and robustness of the system are improved, the need for human intervention is reduced, and the automation level of the system is improved. Step S2223 real-time update and control updates the calculated new liquid level threshold in real time through the central control system, ensuring the timeliness and accuracy of liquid level control; enabling the system to quickly respond to changes in operating status and maintain liquid level stability. Significance achieved: ensuring the real-time and effectiveness of liquid level control, helping to maintain stable operation of the system; improving the operating efficiency and reliability of the system, reducing the operating risks caused by liquid level fluctuations, and ultimately improving the performance and life of the overall system.

[0105] In summary, through these steps, the central control system of this embodiment not only realizes the intelligent adjustment of the liquid level threshold, but also significantly improves the operating efficiency and stability of the condensing system, providing a strong guarantee for the long-term stable operation of the system. The central control system uses an adaptive algorithm to calculate the new liquid level threshold. Through data preprocessing, operating status evaluation, adaptive algorithm application, threshold update and feedback closed loop, it ensures that the dynamic adjustment of the liquid level threshold can adapt to the real-time operating status of the condensing system. It not only improves the system's adaptability and stability, but also provides a solid foundation for continuous optimization and troubleshooting of the system.

[0106] like Figure 4 As shown, this embodiment also provides an embodiment of a flue gas and steam efficient separation system for a metallurgical condensation process. In this embodiment, the flue gas and steam efficient separation system for a metallurgical condensation process is applied to the flue gas and steam efficient separation method for a metallurgical condensation process in the above embodiment. The flue gas and steam efficient separation system for a metallurgical condensation process includes a stage judgment module, a gas diversion module and a gas processing module;

[0107] Among them, the stage judgment module is responsible for monitoring the temperature in the furnace, preprocessing the collected temperature data, comparing the preprocessed temperature data with the preset temperature threshold, and judging the stage of the current process. If the temperature is higher than the preset temperature threshold, the furnace is in the smelting stage, and a smelting signal is sent to the gas diversion module; if the temperature is lower than the preset threshold, the furnace is in the condensation stage, and a condensation signal is sent to the gas diversion module;

[0108] The gas diversion module is equipped with a damper valve to control the different flow directions of water vapor and flue gas. When a smelting signal is received, the flue gas pipeline is opened and the flue gas flows to the rear dust removal device; when a condensation signal is received, the water vapor pipeline is opened and the steam flows to the steam collection device through another pipeline;

[0109] The gas processing module is equipped with a condensation system and a dust removal device, which are responsible for the corresponding treatment of water vapor and flue gas.

[0110] Preferably, the stage judgment module of this embodiment can monitor the temperature in the furnace in real time to ensure the real-time and accuracy of the data; pre-process the collected temperature data to improve the reliability and practicality of the data; accurately judge the stage of the current process by comparing with the preset temperature threshold, and send a corresponding signal to the gas diversion module; the gas diversion module controls the different flow directions of water vapor and flue gas by controlling the pressurization and decompression of the baffle valve; accurately open the corresponding pipeline according to the received smelting or condensation signal to ensure the correct flow of gas; the condensation system in the gas processing module can condense the water vapor and convert it into liquid water for easy processing and utilization; the dust removal device can remove particulate matter and pollutants in the flue gas to reduce pollution to the environment (for specific schematic diagrams, refer to the attached Figure 5 ).

[0111] In summary, this embodiment realizes the automated judgment and control of the smelting process, improves production efficiency and accuracy; can quickly respond to changes in the temperature in the furnace, adjust the process in time, and ensure safe and stable production; realizes precise control of the gas flow direction, and ensures the smooth progress of the smelting and condensation processes; through reasonable gas diversion, optimizes resource utilization, and improves production efficiency and economic benefits; through condensation and dust removal treatment, reduces exhaust gas emissions, reduces environmental pollution, and at the same time recovers water resources, achieving the dual effects of energy saving and environmental protection; the treated gas is purer, which helps to improve product quality and performance.

[0112] Furthermore, the gas flow splitting module specifically includes:

[0113] The signal discrimination submodule is responsible for comparing the received electrical signal with the reference threshold signal after receiving the electrical signal sent by the stage judgment module. When the received electrical signal is greater than the reference signal, it is judged to be a smelting signal; when the received electrical signal is less than the reference signal, it is judged to be a condensation signal;

[0114] The pressure control submodule is responsible for pressurizing or depressurizing the cylinder according to the signal result determined by the signal discrimination submodule; if it is determined to be a smelting signal, the pressure in the cylinder is increased; if it is determined to be a condensation signal, the pressure in the cylinder is reduced;

[0115] The channel switching submodule is composed of a baffle, a slide groove and a slide rail. When the pressure in the cylinder increases, the baffle moves to the water vapor pipe under the action of pressure to open the flue gas pipe. When the pressure in the cylinder decreases, the baffle moves to the flue gas pipe under the tension to open the water vapor pipe.

[0116] Preferably, the signal discrimination submodule of the present embodiment is responsible for receiving the electrical signal and comparing it with the reference threshold signal to determine the signal type; the pressure control submodule pressurizes or depressurizes the cylinder according to the judgment result of the signal discrimination submodule to adapt to different process requirements; the airflow blocking submodule utilizes the mechanical mechanism of the baffle, the slide groove and the slide rail to automatically switch the opening state of the steam duct and the flue gas duct according to the change of the pressure in the cylinder.

[0117] In summary, this embodiment can realize accurate identification of different process stages through precise signal discrimination, and provide a reliable basis for process operation; by adjusting the pressure in the cylinder, it can realize precise control of the smelting or condensation process, thereby improving production efficiency and product quality; by automatically switching pipelines, it can realize precise control of the flow of different gases, ensure the correct flow direction of gas during the smelting or condensation process, and avoid production problems caused by gas mixing.

[0118] Furthermore, the gas processing module specifically includes:

[0119] The condensation submodule has a small amount of water injected into the water storage part for the initial condensation. When the high-temperature steam enters the condensation submodule from the high-temperature steam inlet, the water injected in advance is sprayed out from the spray head under the pressure of the water pump. The high-temperature steam entering the condensation tower is cooled and condensed into liquid water under the triple effects of natural cooling, spraying, and heat exchange and blocking of the cooling device, and falls into the water storage part.

[0120] The liquid level submodule has a liquid level sensor installed at the bottom of the water storage part. When the liquid level is detected to be greater than the preset level, that is, the minimum liquid level of the internal circulation of the condensation system is met, the drain port is opened to discharge the accumulated water from the condensation tower and use it for condensation;

[0121] The dust removal submodule is provided with a collection device and a pressure sensor in the dust removal device. The flue gas enters the dust removal device and is filtered and separated. The dust particles fall into the collection device of the dust removal device. The treated clean gas is transported to the next process link through the vacuum pump. When the value of the pressure sensor in the collection device reaches the preset threshold, an alarm sounds and the light flashes to remind the staff to deal with it in time.

[0122] Preferably, the water pre-injected into the condensation submodule of this embodiment is sprayed out from the spray head under the pressure of the water pump, and exchanges heat with the high-temperature steam, which helps to quickly cool and condense the steam; the triple effects of natural cooling, spraying and heat exchange and blocking of the cooling device ensure that the high-temperature steam can be fully cooled and condensed into liquid water; the liquid level submodule is provided with a liquid level sensor to monitor the liquid level of the water storage part in real time; when the liquid level reaches the preset value, the drain port is automatically opened to discharge the accumulated water and re-apply it to the condensation process; after the flue gas of the dust removal submodule enters the dust removal device, it is filtered and separated, and the dust particles are effectively collected; the clean gas is transported to the next process link through the vacuum pump, reducing environmental pollution; the pressure sensor monitors the pressure in the collection device in real time, and issues an alarm when the preset threshold is reached.

[0123] In summary, this embodiment improves the efficiency of steam condensation, thereby optimizing energy utilization; the recovery and reuse of liquid water helps to save water resources; the temperature of the system is reduced through the condensation process, which helps to maintain the stable operation of the entire system; the automated management of condensed water is achieved, thereby improving the degree of automation of the system; the minimum liquid level of circulation in the condensation system is guaranteed, thereby ensuring the stable operation of the system; system failures or safety hazards caused by excessive water accumulation are avoided; the emission of dust particles in the flue gas is significantly reduced, thereby helping to improve air quality; the safety and reliability of the system are improved, thereby avoiding system failures or safety hazards caused by dust accumulation; the setting of the alarm system enables staff to deal with problems in a timely manner, thereby ensuring the continuous and stable operation of the system.

[0124] like Figure 6 As shown, this embodiment also provides an embodiment of a flue gas and steam efficient separation device for a metallurgical condensation process. In this embodiment, the flue gas and steam efficient separation device for a metallurgical condensation process is applied to the flue gas and steam efficient separation method for a metallurgical condensation process in the above embodiment. The flue gas and steam efficient separation device for a metallurgical condensation process specifically includes a reactor 1, a water injection port 2, a baffle valve 3, a water vapor pipeline 4, a flue gas pipeline 5, a dust removal device 6, an exhaust fan 7, a spray water supply pipe 8, a water treatment device 9, a spray nozzle 10 and a condensation tower 11;

[0125] Among them, a water inlet 2 is opened on the upper side wall of the reactor 1, which is connected to the baffle valve 3 through a pipe. After passing through the baffle valve 3, the water vapor pipe 4 enters the water storage device 11, and the flue gas pipe 5 enters the dust removal device 6; a high-temperature steam inlet 10 is arranged at the lower part of the water storage device 11, and a water treatment device 9 is arranged at the bottom on the opposite side of the water vapor pipe 4, and a spray water supply pipe 8 connects the water treatment device 9 with the top of the spray nozzle 10; an exhaust fan 7 is arranged on the side opposite to the dust removal device 6 and the flue gas pipe 5, and the spray water supply pipe 8, the water treatment device 9 and the spray nozzle 10 together constitute a condensation tower 11.

[0126] Preferably, a mixture of flue gas and steam in this embodiment is produced from the reactor 1 and then separated and processed through a series of pipes and devices; wherein the baffle valve 3 is used to control the flow direction of the fluid, the water vapor pipe 4 and the flue gas pipe 5 respectively transport the water vapor and the flue gas to different processing devices; the dust removal device 6 is used to remove particulate matter and pollutants in the flue gas, and the water treatment device 9 and the spray water supply pipe 8 are used to supply water to the spray nozzle 10.

[0127] To sum up, in this embodiment, the dust removal device 6 effectively removes particulate matter and pollutants in the flue gas, reduces the emission of atmospheric pollutants, helps to improve air quality, and meets environmental protection requirements; the spray water supply pipe 8, water treatment device 9 and spray nozzle 10 in the condensation tower 11 work together, not only to achieve the cooling and purification of the flue gas, but also to discharge wastewater through the recycling of water, which is beneficial to environmental protection and improves the utilization efficiency of water resources; the design of the baffle valve 3 enables the water vapor pipe 4 and the flue gas pipe 5 to transport water vapor and flue gas to different treatment devices respectively, thereby achieving effective separation and utilization of resources; a series of pipes and devices are used to achieve continuous and efficient separation of flue gas and steam, optimize the process of metallurgical condensation process, and improve production efficiency; the dust removal device 6 and the condensation tower 11 are set up so that the flue gas is fully purified before discharge.

[0128] Furthermore, if Figure 7 and Figure 8 As shown, this embodiment is used in a high-efficiency separation device for flue gas and steam in a metallurgical condensation process, and the baffle valve 3 specifically includes an air inlet pipe 12, a baffle 13, a top cover 14, a cylinder 15, an air outlet channel 16, a shell 17, a slide rail 27 and a slide groove 28;

[0129] Among them, two shells 17 with the same structure are installed opposite to each other and connected by screws and nuts through the holes around them. The baffle 13 is in the gap space between the two shells 17. The top cover 14 is located at the top and connected to the two shells 17 by screws and nuts through the holes. The main body of the cylinder 15 is fixedly installed on the top cover 14, and the piston column of the cylinder 15 is connected to the baffle 13 to provide power; two circular holes are opened on the shell 17, which are connected to the steam pipe and the flue gas pipe respectively. When the baffle 13 is driven by the cylinder 15 to move up and down, the passage conversion can be completed; slide grooves 28 are provided on both sides of the baffle 13, and slide rails 27 are provided on the inner wall of the shell 17. The slide rails 27 cooperate with the slide grooves 28 to ensure the stability of the movement of the baffle 13 (refer to the attached specific schematic diagram). Fig. 9 , Attachment Fig.10 , attached Fig.10 (a) upper channel open, (b) lower channel open).

[0130] Preferably, the air inlet pipe 12 of this embodiment serves as the entrance for the mixture of flue gas and steam to enter the baffle valve 3, ensuring that the fluid can smoothly enter the interior of the valve body; the baffle 13 can move up and down under the drive of the cylinder 15, thereby completing the passage conversion between the steam pipe and the flue gas pipe; the top cover 14 is located at the top of the baffle valve 3, and is connected to the two shells 17 by screws and nuts, playing a role of fixing and sealing; at the same time, the top cover 14 also provides an installation position for the cylinder 15; the cylinder 15 is the power source of the baffle valve 3, and is connected to the baffle 13 through a piston column to provide power for the baffle 13 to move up and down; the shell 17 is the main structure of the baffle valve 3, which is composed of two relatively mounted shells connected by screws and nuts; the inner wall of the shell 17 is provided with a slide rail 27, which cooperates with the slide grooves 28 on both sides of the baffle 13 to ensure the stability of the movement of the baffle 13; at the same time, two circular holes are also opened on the shell 17, which are connected to the two outlet channels 16 respectively, corresponding to the steam pipe and the flue gas pipe.

[0131] In summary, this embodiment achieves rapid and efficient separation of flue gas and steam by precisely controlling the movement of the baffle 13; it helps to improve the efficiency and accuracy of the treatment; the slide grooves 28 on both sides of the baffle 13 cooperate with the slide rails in the shell 17 to ensure the stability and reliability of the movement of the baffle 13, and help to reduce the problems of fluid leakage and reduced separation efficiency caused by unstable movement of the baffle 13; the modules of the baffle valve 3 are connected by screws and nuts, which is easy to disassemble and replace, and helps to reduce maintenance costs and improve equipment availability; the design of the baffle valve 3 is highly flexible, and the driving mode of the cylinder 15 can be adjusted according to actual needs to adapt to the needs of metallurgical condensation processes of different scales and types.

[0132] Furthermore, if Fig.11As shown, this embodiment is used in a high-efficiency separation device for flue gas and steam in a metallurgical condensation process, and the steam condensation device includes a spray water supply pipe 8, a spray nozzle 10, an exhaust pipeline interface 18, a liquid level sensor 19, a filter screen 20, a water pump 21, a drainage outlet 22, a water storage part 23 and a high-temperature steam inlet 24;

[0133] Among them, the exhaust pipe interface 18 is connected to the top of the condensation tower 11, the water storage part 23 at the bottom of the condensation tower 11 is connected to the drainage outlet 22, and a liquid level sensor 19 is installed at the bottom, the drainage outlet 22 is connected to the water pump 21, the water pump 21 is connected to the filter 20, and the other end of the water pump 21 is connected to the spray water supply pipe 8 and connected to the spray nozzle 10.

[0134] Preferably, the condensation system of this embodiment is composed of a condensation tower 11 body and a series of auxiliary components thereof, a high-temperature steam inlet 24 is located in the middle of the condensation tower 11, a spray nozzle 10 of the spray cooling system is located in the upper part of the condensation tower 11, the lowest section is a water storage part 23, an outlet is provided on the bottom side, a filter screen 20 is provided at the outlet, the outlet pipe has two branches leading to the drainage outlet 22 and the interface of the water pump 21 respectively, the water pump 21 is located in the lower part of the condensation tower 11, and both ends of the spray water supply pipe 8 are connected to the water pump 21 and the spray device respectively; the vacuum pump connected to the vacuum pipe provides negative pressure, and after being diverted by the baffle valve 3, only high-temperature steam enters the condensation system from the high-temperature steam inlet 24, and a small amount of water must be injected into the water storage part 23 in advance for the initial stage Condensation use; the water injected in advance is pumped into the spray device along the spray water supply pipe 8 by the water pump 21, and then sprayed out by the spray nozzle 10 after flowing through the entire spray cooling device; the high-temperature steam entering the condensation tower 11 is cooled and condensed into liquid water under the triple effects of natural cooling, spraying and heat exchange and blocking of the cooling device, and finally falls into the water storage part 23 at the bottom; the water level in the water storage part 23 will gradually rise as the water vapor continues to be introduced, and part of the accumulated water can be pumped into the upper cooling device by the water pump 21 and circulated in the condensation system. There is a liquid level sensor 19 in the tower, which can detect the amount of water accumulated in the water storage part 23. The remaining water after meeting the circulation demand can be discharged from the condensation system by opening the drainage outlet 22 when needed for condensation. In this way, the water cycle of the entire system is formed, which greatly improves the utilization rate of water.

[0135] In summary, this embodiment can effectively convert high-temperature steam into liquid water and separate flue gas through the coordinated work of components such as the condensation tower 11 and the spray cooling system; through components such as the liquid level sensor 19, the water pump 21, the filter screen 20, etc., automatic water level control of the water storage part 23 and the recycling of water are realized, which reduces the waste of water resources, reduces the processing cost, and improves the economic benefit; through the triple effects of natural cooling, spray cooling and device heat exchange, efficient condensation of high-temperature steam is achieved, the condensation efficiency is improved, the energy consumption is reduced, the recycling of water resources is achieved, the wastewater discharge is reduced, and it is beneficial to environmental protection; by realizing the efficient separation of flue gas and steam and the recycling of water resources, the efficiency of the metallurgical condensation process can be significantly improved; reducing energy consumption and wastewater discharge is beneficial to improving the sustainable development level of the entire metallurgical industry.

[0136] like Fig.12 As shown, this embodiment provides an embodiment of an electronic device. In this embodiment, the electronic device 25 includes a processor 251 and a memory 252 coupled to the processor 251.

[0137] The memory 252 stores program instructions for implementing any of the above-mentioned embodiments of the method for efficiently separating flue gas and steam for a metallurgical condensation process.

[0138] The processor 251 is used to execute program instructions stored in the memory 252 to perform a high-efficiency separation method of flue gas and steam for a metallurgical condensation process.

[0139] The processor 251 may also be referred to as a CPU (Central Processing Unit). The processor 251 may be an integrated circuit chip having the ability to process signals. The processor 251 may also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0140] Further, Fig.13The schematic diagram of the structure of the storage medium of an embodiment of the present application is that the storage medium 26 of the embodiment of the present application stores program instructions 261 that can implement all the above methods, wherein the program instructions 261 can be stored in the above storage medium in the form of a software product, including several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or terminal devices such as a computer, a server, a mobile phone, and a tablet.

[0141] In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0142] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional units. The above is only an implementation mode of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present invention.

[0143] The specific implementation methods of the invention are described in detail above, but they are only examples, and the invention is not limited to the specific implementation methods described above. For those skilled in the art, any equivalent modification or substitution of the invention is also within the scope of the invention, therefore, the equalization, modification, improvement, etc. made without departing from the spirit and principle of the invention should be included in the scope of the invention.

Claims

1. A method for efficiently separating flue gas and steam for metallurgical condensation process, characterized in that: The method for efficiently separating flue gas and steam for a metallurgical condensation process comprises: The current process of the system is determined based on the temperature in the furnace; if the temperature is higher than the preset threshold, it is the smelting stage; if the temperature is lower than the preset threshold, it is the condensation stage; the damper valve is adjusted in real time according to different process stages to allow the gas in the furnace to enter the corresponding channel; When water is injected into the water inlet of the furnace, the condensation process begins, the damper valve adjusts the passage to the steam channel synchronously, the water pump of the condensation system starts to condense, and the sensor of the water storage part starts to detect at the same time. If the liquid level is greater than the preset liquid level, that is, the minimum liquid level of the circulation in the condensation system is met, the drainage outlet is opened to discharge the accumulated water out of the condensation tower and use it again for condensation; When entering the smelting stage, the baffle valve adjusts the passage to the flue gas duct. Considering that there is still high-temperature steam that has not been completely cooled in the steam pipe and the condensation tower, the condensation system accumulates and runs for a period of time before stopping.

2. The method for efficiently separating flue gas and steam for metallurgical condensation process according to claim 1, characterized in that: Judging the current process of the system based on the temperature in the furnace, including: Analyze historical temperature data to identify typical temperature ranges at different process stages; dynamically adjust temperature thresholds based on real-time temperature changes in the current furnace; Set a time window and continuously monitor the temperature change within this window; only when the temperature is continuously stable above or below a certain threshold within the time window, it is determined to enter the corresponding process stage; According to the defined fuzzy rules, the applicability of each rule is evaluated to obtain the membership degree of each process stage; the fuzzy output is converted into a clear process stage judgment result through the center of gravity method; according to the defuzzified result, the current process stage is determined and the corresponding control strategy is executed.

3. The method for efficiently separating flue gas and steam for metallurgical condensation process according to claim 2, characterized in that: The process of adjusting the flapper valve after implementing the corresponding control strategy includes: A temperature sensor is set up to collect temperature data of the exhaust gas from the furnace and transmit the collected data to the data control center; The collected gas temperature data is preprocessed, and the preprocessed temperature data is compared with the preset temperature threshold; if the temperature is higher than the preset temperature threshold, the furnace is in the smelting stage, and a smelting signal is sent to the cylinder; if the temperature is lower than the preset threshold, the furnace is in the condensation stage, and a condensation signal is sent to the cylinder; After the cylinder receives the smelting signal, it pressurizes and pushes the baffle to the steam pipe to open the flue gas pipe; after the cylinder receives the condensation signal, it decompresses and pulls the baffle to the flue gas pipe to open the steam pipe.

4. The method for efficiently separating flue gas and steam for metallurgical condensation process according to claim 1, characterized in that: The process of judging whether the liquid level is greater than the preset liquid level includes: In the water storage part of the condensing system, multiple liquid level sensors are arranged. Each sensor collects liquid level data in real time at a frequency of milliseconds and transmits the data to the central control system through a high-speed data transmission channel. After receiving the liquid level data, the central control system performs data preprocessing. The central control system presets two key liquid level thresholds: the minimum liquid level threshold and the maximum liquid level threshold, which are obtained based on the operating requirements of the condensing system and historical data analysis; the liquid level thresholds are dynamically adjusted based on real-time liquid level data and the operating status of the condensing system; When the liquid level data of the water storage part is continuously higher than the minimum liquid level threshold, and the liquid level data of multiple sensors are consistent, it is determined that the current liquid level meets the minimum liquid level requirement of the circulation in the condensation system; when the liquid level meets the minimum liquid level requirement, the system opens the drain outlet to discharge the accumulated water from the condensation tower and apply it to the condensation process again.

5. The method for efficiently separating flue gas and steam for metallurgical condensation process according to claim 4, characterized in that: The process of dynamically adjusting the liquid level threshold includes: The central control system first analyzes the real-time liquid level data received and compares it with the historical liquid level data. By analyzing the liquid level change trend, seasonal fluctuations and the impact of emergencies on the liquid level in the historical data, the normal fluctuation range and abnormal fluctuation pattern of the liquid level are identified. According to the current operating status of the condensing system, the dynamic change requirements of the liquid level are evaluated; based on the results of data analysis and operating status evaluation, the central control system uses an adaptive algorithm to calculate the new liquid level threshold; The calculated new liquid level threshold is updated in real time through the central control system. After each liquid level threshold adjustment, the liquid level data before and after the adjustment, the system operating status and the adjustment effect are recorded to form a closed-loop feedback.

6. The method for efficiently separating flue gas and steam for metallurgical condensation process according to claim 5, characterized in that: The central control system uses an adaptive algorithm to calculate the new liquid level threshold process, including: Monitor the operating status of the condensing system in real time, collect the operating data of each component of the system through the sensor network, and build a comprehensive operating status model; based on the operating status model, evaluate the dynamic change requirements of the liquid level, analyze the impact of load changes on the liquid level, and determine the adjustment direction and amplitude of the liquid level threshold; Initialize PID controller parameters and set initial thresholds based on historical data and expert experience; input the extracted features and operating status data into the adaptive algorithm model to calculate new liquid level thresholds in real time; The calculated new liquid level threshold is updated in real time through the central control system.

7. A system for efficiently separating flue gas and steam for metallurgical condensation process, which is applied to the method for efficiently separating flue gas and steam for metallurgical condensation process as claimed in any one of claims 1 to 6, characterized in that: The flue gas and steam efficient separation system for metallurgical condensation process comprises: The stage judgment module is responsible for monitoring the temperature in the furnace and preprocessing the collected temperature data. It compares the preprocessed temperature data with the preset temperature threshold to judge the stage of the current process. If the temperature is higher than the preset temperature threshold, the furnace is in the smelting stage, and a smelting signal is sent to the gas diversion module; if the temperature is lower than the preset threshold, the furnace is in the condensation stage, and a condensation signal is sent to the gas diversion module. The gas diversion module is responsible for setting the damper valve to control the different flow directions of water vapor and flue gas. When the smelting signal is received, the flue gas pipeline is opened and the flue gas flows to the rear dust removal device; when the condensation signal is received, the water vapor pipeline is opened and the steam flows to the steam collection device through another pipeline; The gas processing module is responsible for setting up the condensation system and the dust removal device respectively, and is responsible for the corresponding treatment of water vapor and flue gas.

8. The high-efficiency separation system of flue gas and steam for metallurgical condensation process according to claim 7 is characterized in that: Gas splitter module, including: The signal discrimination submodule is responsible for comparing the received electrical signal with the reference threshold signal after receiving the electrical signal sent by the stage judgment module. When the received electrical signal is greater than the reference signal, it is judged to be a smelting signal; when the received electrical signal is less than the reference signal, it is judged to be a condensation signal; The pressure control submodule is responsible for pressurizing or depressurizing the cylinder according to the signal result determined by the signal discrimination submodule; if it is determined to be a smelting signal, the pressure in the cylinder is increased; if it is determined to be a condensation signal, the pressure in the cylinder is reduced; The channel switching submodule is composed of a baffle, a slide groove and a slide rail. When the pressure in the cylinder increases, the baffle moves to the water vapor pipe under the action of pressure to open the flue gas pipe. When the pressure in the cylinder decreases, the baffle moves to the flue gas pipe under the tension to open the water vapor pipe.

9. The high-efficiency separation system of flue gas and steam for metallurgical condensation process according to claim 7, characterized in that: Gas processing module, including: The condensation submodule has a small amount of water injected into the water storage part for the initial condensation. When the high-temperature steam enters the condensation submodule from the high-temperature steam inlet, the water injected in advance is sprayed out from the spray head under the pressure of the water pump. The high-temperature steam entering the condensation tower is cooled and condensed into liquid water under the triple effects of natural cooling, spraying, and heat exchange and blocking of the cooling device, and falls into the water storage part. The liquid level submodule has a liquid level sensor installed at the bottom of the water storage part. When the liquid level is detected to be greater than the preset level, that is, the minimum liquid level of the internal circulation of the condensation system is met, the drain port is opened to discharge the accumulated water from the condensation tower and use it for condensation; The dust removal submodule is provided with a collection device and a pressure sensor in the dust removal device. The flue gas enters the dust removal device and is filtered and separated. The dust particles fall into the collection device of the dust removal device. The treated clean gas is transported to the next process link through the vacuum pump. When the value of the pressure sensor in the collection device reaches the preset threshold, an alarm sounds and the light flashes to remind the staff to deal with it in time.

10. A highly efficient separation device for flue gas and steam in a metallurgical condensation process, which is applied to the highly efficient separation method for flue gas and steam in a metallurgical condensation process as claimed in any one of claims 1 to 6, characterized in that: The high-efficiency separation device for flue gas and steam used in metallurgical condensation process comprises: a reactor, a water injection port, a baffle valve, a water vapor pipeline, a flue gas pipeline, a dust removal device, an air pump, a spray water supply pipe, a water treatment device, a spray nozzle and a condensation tower; Among them, a water inlet is opened on the upper side wall of the reactor, which is connected to the baffle valve through a pipe. After passing through the baffle valve, the water vapor pipe enters the water storage device, and the flue gas pipe enters the dust removal device; a high-temperature steam inlet is arranged at the lower part of the water storage device, and a water treatment device is arranged at the bottom on the opposite side of the water vapor pipe. The spray water supply pipe connects the water treatment device with the top of the spray nozzle, and the spray water supply pipe, the water treatment device and the spray nozzle together constitute a condensation tower; an exhaust fan is arranged on the side opposite to the dust removal device and the flue gas pipe.

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