Method and equipment for removing accumulated dust of pure oxygen burning lance

Abstract

The invention discloses a method and device for removing accumulated dust of a pure oxygen burning lance, and relates to the technical field of automatic control and automation. The method comprises the steps that the real-time temperature of a burner block corresponding to a plurality of pure oxygen burning lances is detected; according to a comparison result of the real-time temperature at the burner block and a preset temperature threshold value, the real-time state of a pure oxygen burning gun corresponding to the burner block is determined; according to the real-time state, the working mode of execution of the accumulated dust removing task of the pure oxygen burning guns corresponding to the burner block is determined, and the opening degree of a switching valve and a flow adjusting valve of each pure oxygen burning gun is controlled according to the working mode; and if the accumulated dust removing task is completed, the opening degree of the switching valve and the opening degree of the flow adjusting valve are adjusted. By executing the accumulated dust removal task in a manual, semi-automatic or automatic mode, manual intervention of accumulated dust removal of the pure oxygen burning gun is reduced, the accumulated dust removal efficiency is improved, the cost is reduced, burning loss of a burner block or a breast wall caused by accumulated dust of the burning gun is prevented, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The present application relates to the field of automatic control and automation technology, and in particular to a method and device for removing dust accumulation from a pure oxygen burner. Background Art

[0002] In the glass production process, especially when producing volatile glass, pure oxygen burners are widely used in the melting process due to their high combustion efficiency and concentrated flame temperature. However, the pure oxygen combustion environment accelerates the deposition of ash from the fuel on the burner brick surface. This ash accumulation is particularly significant when the glass batch contains volatile components (such as alkali metal oxides). This ash accumulation hinders the normal spread of the flame, causing localized high-temperature zones to shift, triggering thermal stress concentration in the burner bricks, and ultimately causing refractory burnout. Frequent ash cleaning is required. Failure to do so can damage the burner bricks of the pure oxygen burner and, in severe cases, even the breast wall near the pure oxygen burner.

[0003] At present, the main method for removing ash accumulation from pure oxygen burners is to manually open and close the natural gas or oxygen valves. The fire is stopped and the ash is cleaned by manually closing the natural gas and oxygen valves of a single pure oxygen burner. This method relies on manual on-site operation, and manual inspections cannot monitor the temperature changes of the burner bricks in real time. The degree of ash accumulation depends on experience. This method not only consumes a lot of manpower, but also has low efficiency in pure oxygen burner cleaning, high production costs, and certain safety risks.

[0004] Therefore, the existing technology cannot solve the problem that manual intervention is required to remove the ash accumulation of the pure oxygen burner, and the burner bricks or breast wall are burned due to the inability to remove the ash accumulation in time. Summary of the Invention

[0005] The main purpose of this application is to provide a method and equipment for removing ash accumulation in a pure oxygen burner, aiming to solve the technical problem that the ash accumulation removal of a pure oxygen burner requires manual intervention and the ash accumulation cannot be removed in time, resulting in the burning of burner bricks or breast walls.

[0006] To achieve the above objectives, the present application proposes a method for removing dust accumulation from a pure oxygen burner, the method comprising:

[0007] Detect the real-time temperature of the burner bricks corresponding to several pure oxygen burners;

[0008] Determining the real-time state of the pure oxygen burner corresponding to the burner brick according to the comparison result of the real-time temperature at the burner brick and the preset temperature threshold;

[0009] Determine the working mode of the burner brick corresponding to the dust removal task of the pure oxygen burner according to the real-time status, and control the opening of the switch valve and flow control valve of each pure oxygen burner according to the working mode;

[0010] If the dust removal task is completed, the openings of the switch valve and the flow regulating valve are adjusted.

[0011] In one embodiment, the step of detecting the real-time temperatures of the burner bricks corresponding to the plurality of pure oxygen burners includes:

[0012] A high-temperature resistant thermocouple is installed in the preset temperature measuring hole of the burner brick above each pure oxygen burner, and a signal transmission line of the high-temperature resistant thermocouple is led out to the control terminal of the distributed control system through a refractory isolation sleeve.

[0013] In one embodiment, the preset temperature threshold includes a reference temperature A, a warning threshold a, and an abnormality threshold b, and the value of the abnormality threshold b is greater than the warning threshold a.

[0014] In one embodiment, determining the real-time state of the pure oxygen burner corresponding to the burner brick according to the comparison result of the real-time temperature at the burner brick and the preset temperature threshold comprises:

[0015] If the real-time temperature of the burner brick is within the first temperature range, the pure oxygen burner corresponding to the burner brick is marked as normal, and the first temperature range is the reference temperature A±the warning threshold a;

[0016] If the real-time temperature at the burner brick exceeds the second temperature range, the pure oxygen burner corresponding to the burner brick is marked as abnormal, and the second temperature range is the reference temperature A±abnormal threshold b;

[0017] If the real-time temperature at the burner brick is within the third temperature range, the pure oxygen burner corresponding to the burner brick is marked as a warning state, and the third temperature range is two temperature intervals of reference temperature A-abnormal threshold b to reference temperature A-warning threshold a and reference temperature A+warning threshold a to reference temperature A+abnormal threshold b.

[0018] In one embodiment, the working mode of determining the execution of the dust removal task of the burner brick corresponding to the pure oxygen burner according to the real-time status includes:

[0019] If the pure oxygen burner corresponding to the burner brick is in a normal state, an operation maintenance instruction corresponding to the pure oxygen burner is generated;

[0020] If the pure oxygen lance corresponding to the burner brick is in an early warning state, a dust removal prompt instruction corresponding to the pure oxygen lance is generated, and the dust removal task corresponding to the pure oxygen lance of the burner brick is determined to be executed in manual mode or semi-automatic mode;

[0021] If the pure oxygen lance corresponding to the burner brick is in an abnormal state, a dust cleaning trigger instruction corresponding to the pure oxygen lance is generated, and the dust cleaning task corresponding to the pure oxygen lance of the burner brick is determined to execute the automatic mode.

[0022] In one embodiment, the step of controlling the opening of the on-off valve and the flow regulating valve of each of the pure oxygen burners according to the working mode includes:

[0023] When the burner brick executes the manual mode for the dust removal task corresponding to the pure oxygen burner, the opening of the flow control valves of all pure oxygen burners is locked, and the flow control valves include at least a natural gas flow control valve and an oxygen flow control valve;

[0024] Closing the natural gas switch valve of the target pure oxygen burner, and closing the oxygen switch valve of the target pure oxygen burner after a first preset delay;

[0025] Start the automatic ash cleaning program within the second preset time after the ceasefire, and monitor the real-time temperature of the burner brick corresponding to the target pure oxygen burner to return to normal;

[0026] The oxygen switch valve of the target pure oxygen burner is reopened, and the natural gas switch valve of the target pure oxygen burner is opened after the first preset time is delayed.

[0027] In one embodiment, the step of controlling the opening of the on-off valve and the flow regulating valve of each of the pure oxygen burners according to the working mode further comprises:

[0028] When the burner brick executes the semi-automatic mode for the dust removal task corresponding to the pure oxygen burner, pure oxygen burners No. 1 to No. n are selected as the target pure oxygen burners in the preset order;

[0029] Starting the dust removal task of the first target pure oxygen burner according to the preset sequence, wherein the first target pure oxygen burner executes the dust removal task process corresponding to the manual mode timing;

[0030] If the dust removal task of the target pure oxygen burner No. 1 is completed, the dust removal task of the next target pure oxygen burner in the preset order is started after a first interval delay, and is executed sequentially until the dust removal tasks of all pure oxygen burners in the queue of the preset order are completed; wherein, if the dust removal of a target pure oxygen burner fails, the target pure oxygen burner that fails in dust removal is skipped and the fault information is recorded, and the dust removal task of the next target pure oxygen burner in the preset order is continued, and the fault information is pushed to the operation interface to trigger a manual intervention prompt.

[0031] In one embodiment, the step of controlling the opening of the on-off valve and the flow regulating valve of each of the pure oxygen burners according to the working mode further comprises:

[0032] When the burner brick executes the automatic mode for the dust removal task corresponding to the pure oxygen burner, the real-time temperature of the pure oxygen burner in the abnormal state is monitored and it is verified that the real-time temperature is consistent with the abnormal duration;

[0033] Generate an automatic priority queue for pure oxygen burner ash removal based on the degree of temperature anomaly deviation;

[0034] Processing the pure oxygen burners in abnormal state in sequence according to the priority order of the automatic priority queue; wherein the processing interval time of the pure oxygen burners in adjacent priority order is the second interval time;

[0035] The real-time temperature of the pure oxygen burner in the abnormal state after the ash removal task is completed is monitored. If the real-time temperature returns to the first temperature range, the ash removal is recorded as successful. Otherwise, secondary ash removal is triggered or a manual intervention prompt is triggered.

[0036] In one embodiment, if the dust removal task is completed, the step of adjusting the openings of the switch valve and the flow control valve includes:

[0037] If the dust removal task is completed, the opening lock of the flow regulating valves of all pure oxygen burners is released, and the flow regulating valves of all pure oxygen burners are switched from the locked state to the automatic adjustment state;

[0038] Obtain the opening difference between the current on-off valve of the target pure oxygen burner and the on-off valve in the initial working state of the target pure oxygen burner. If the opening difference is greater than a preset opening difference threshold, gradually adjust the opening of the on-off valve to the initial working state of the target pure oxygen burner at a preset rate; otherwise, jump to the opening of the on-off valve in the initial working state of the target pure oxygen burner.

[0039] In addition, to achieve the above-mentioned purpose, the present application also provides a pure oxygen burner ash removal device, the pure oxygen burner ash removal device comprising:

[0040] Temperature detection module, used to detect the real-time temperature of the burner bricks corresponding to several pure oxygen burners;

[0041] A state judgment module is used to determine the real-time state of the pure oxygen burner corresponding to the burner brick according to the comparison result of the real-time temperature at the burner brick and the preset temperature threshold;

[0042] a mode control module for determining, based on the real-time status, the operating mode of the burner brick corresponding to the dust removal task of the pure oxygen burner, and controlling the opening of the switch valve and flow regulating valve of each pure oxygen burner according to the operating mode;

[0043] A state recovery module is used to adjust the opening of the switch valve and the flow control valve if the dust removal task is completed.

[0044] In addition, to achieve the above-mentioned purpose, the present application also provides a pure oxygen burner ash removal device, which includes: a memory, a processor, and a computer program stored on the memory and runnable on the processor, and the computer program is configured to implement the steps of the pure oxygen burner ash removal method as described above.

[0045] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium. A computer program is stored on the storage medium. When the computer program is executed by the processor, the steps of the pure oxygen burner ash removal method as described above are implemented.

[0046] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps of the pure oxygen burner dust removal method as described above are implemented.

[0047] The present application proposes a method for removing dust from a pure oxygen burner, which specifically detects the real-time temperature at the burner bricks corresponding to several pure oxygen burners; determines the real-time status of the pure oxygen burner corresponding to the burner brick based on the comparison result of the real-time temperature at the burner brick and the preset temperature threshold; determines the working mode of the burner brick corresponding to the pure oxygen burner for performing the dust removal task based on the real-time status, and controls the opening of the switch valve and flow control valve of each pure oxygen burner according to the working mode; if the dust removal task is completed, adjusts the opening of the switch valve and flow control valve. The present application more accurately judges the dust accumulation situation by real-time monitoring of the temperature at the burner brick corresponding to the pure oxygen burner and automatic control, thereby realizing the automation and intelligence of dust removal, reducing the need for manual intervention, improving the timeliness and safety of dust removal, and reducing equipment energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0049] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0050] Figure 1 A schematic diagram of a process flow diagram of a first embodiment of a method for removing dust from a pure oxygen burner according to the present invention;

[0051] Figure 2 This is a schematic diagram of the structure of Example 2 of the pure oxygen burner dust removal method of this application;

[0052] Figure 3 A schematic diagram of a process flow diagram of Example 3 of the method for removing dust from a pure oxygen burner of this application;

[0053] Figure 4 This is a flow chart of Example 4 of the method for removing dust from a pure oxygen burner of this application;

[0054] Figure 5 This is a flow chart of Example 5 of the method for removing dust from a pure oxygen burner of this application;

[0055] Figure 6 This is a flow chart of Example 6 of the method for removing dust from a pure oxygen burner of this application;

[0056] Figure 7 This is a schematic diagram of the module structure of the pure oxygen burner dust removal device according to an embodiment of the present application;

[0057] Figure 8 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the pure oxygen burner dust removal method in the embodiment of the present application.

[0058] The purpose, features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0059] It should be understood that the specific embodiments described herein are merely used to explain the technical solutions of the present application and are not intended to limit the present application.

[0060] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0061] At present, the ash cleaning operation of the pure oxygen burner requires manual opening and closing of the flow valve to stop the fire, and relies on manual inspection. It is impossible to monitor the temperature changes of the burner bricks in real time. The degree of ash accumulation is judged only by experience. If the ash is not cleaned in time, it may cause damage to the burner bricks and the breast wall refractory materials. The degree of automation is low, a lot of manpower is consumed, and the ash cleaning efficiency is low, making it difficult to achieve efficient, safe and low-cost ash removal.

[0062] The present application provides a solution that more accurately judges the dust accumulation situation through real-time monitoring of the temperature at the burner brick corresponding to the pure oxygen burner and automatic control, realizes the automation and intelligence of dust removal, reduces the need for manual intervention, improves the accuracy and timeliness of dust removal, and reduces equipment energy consumption.

[0063] Based on this, the present invention provides a method for removing dust from a pure oxygen burner. Figure 1 , Figure 1 This is a flow chart of the first embodiment of the method for removing dust from a pure oxygen lance of the present application.

[0064] In this embodiment, the method for removing dust accumulation from the pure oxygen burner includes steps S10 to S40:

[0065] Step S10, detecting the real-time temperature of the burner bricks corresponding to a plurality of pure oxygen burners;

[0066] It should be noted that temperature sensors for detecting real-time temperature usually use thermocouples. In addition, infrared temperature sensors or fiber grating temperature sensors can also be selected, and the temperature measurement data are integrated into the distributed control system. When arranging sensors on the surface of the burner brick corresponding to the pure oxygen burner or on the nearby breast wall, it is necessary to avoid the direct impact area of the flame and perform redundant deployment to cover different positions of the burner brick to avoid data deviation caused by failure of a single sensor. At the same time, high-temperature resistant materials such as ceramic sleeves and stainless steel sheaths are used to wrap the sensors to avoid high-temperature burning. In addition, the dust or glass volatiles on the sensor surface are regularly removed through a compressed air purge device to prevent deviations in the temperature measurement data.

[0067] Step S20, determining the real-time state of the pure oxygen burner corresponding to the burner brick according to the comparison result between the real-time temperature at the burner brick and the preset temperature threshold;

[0068] It should be noted that the preset temperature threshold is affected by multiple factors, such as equipment parameters and operating conditions, where the equipment parameters include at least the temperature resistance limit of the burner brick material, the pure oxygen burner type and the thermocouple parameters; the operating conditions include at least the furnace load and the fuel type; in addition, the preset temperature threshold range can be dynamically adjusted according to the product production stage (such as melting, cooling) and the glass formula requirements to adapt to process changes.

[0069] Specifically, the distributed control system DCS continuously compares the current temperature with the preset temperature threshold to determine the real-time status of the pure oxygen burner. The real-time status can be divided into a normal state, in which the current temperature is within a safe range, a warning state, in which the current temperature exceeds the warning threshold but does not reach the abnormal threshold, and an abnormal state, in which the current temperature exceeds the abnormal threshold or the temperature sensor is abnormal. For example, in the control interface of the distributed control system DCS, the real-time status of the pure oxygen burner is marked with color, such as green mapping the normal state, yellow mapping the warning state, and red mapping the abnormal state. When the pure oxygen burner changes from green to yellow, an audible and visual alarm is triggered to remind the operator to check the dust accumulation, or automatically start the purge device to try to remove the dust accumulation, or reduce the fuel supply to the pure oxygen burner to alleviate local high temperature.

[0070] In this embodiment, by judging and automatically controlling the real-time status of the pure oxygen burner, corresponding control instructions are generated for different real-time statuses, thereby solving the thermal runaway problem caused by dust accumulation, reducing manual intervention, and improving the efficiency and timeliness of dust removal.

[0071] Step S30, determining the working mode of the burner brick corresponding to the dust removal task of the pure oxygen burner based on the real-time status, and controlling the opening of the switch valve and flow control valve of each pure oxygen burner according to the working mode;

[0072] It should be noted that there is a mapping relationship between the real-time status and the working mode. For example, the warning status corresponds to the manual or semi-automatic working mode, and the abnormal status corresponds to the automatic working mode. The automatic mode can also be adjusted to manual or semi-automatic mode. After determining the working mode, adjust the opening of the switch valve of the pure oxygen burner, such as maintaining the current opening, closing the switch valve, reducing or increasing the opening at a preset rate, etc., to avoid ash cleaning interfering with the original combustion state and ensure safety. In addition, by adding an oxygen sensor in the loop, the natural gas valve opening is dynamically corrected according to the feedback of the oxygen sensor to prevent incomplete combustion.

[0073] In step S40 , if the dust removal task is completed, the openings of the switch valve and the flow regulating valve are adjusted.

[0074] Specifically, the burner brick temperature is continuously monitored. If the temperature fluctuation is less than the preset threshold range of ±2% for 3 consecutive minutes after cleaning, it is determined that the cleaning is completed. When the automatic system judgment is completed, a confirmation window pops up on the control interface, and the operator can manually confirm the cleaning effect in conjunction with video monitoring.

[0075] It should be noted that after dust cleaning is completed, the opening lock of the flow control valves of all pure oxygen burners is released, and the opening of the on-off valve of the target pure oxygen burner is adjusted. The opening of the on-off valve of the target pure oxygen burner is adjusted based on the difference between the current opening of the on-off valve of the target pure oxygen burner and the opening of the on-off valve in the initial operating state and the preset opening difference threshold. If the comparison result shows that the opening difference is greater than the preset opening difference threshold, the opening of the on-off valve is gradually adjusted at a preset rate using an S-curve or linear ramp algorithm to avoid thermal shock caused by sudden flow changes.

[0076] This embodiment detects the real-time temperature of the burner bricks corresponding to several pure oxygen burners; determines the real-time status of the pure oxygen burners corresponding to the burner bricks based on the comparison result of the real-time temperature of the burner bricks with the preset temperature threshold; determines the working mode of the ash removal task of the burner brick corresponding to the pure oxygen burner based on the real-time status, and controls the opening of the switch valve and flow control valve of each pure oxygen burner according to the working mode; if the ash removal task is completed, adjusts the opening of the switch valve and flow control valve. By real-time monitoring of the temperature of the burner bricks corresponding to the pure oxygen burners and automatic control, the ash accumulation situation can be more accurately judged, realizing the automation and intelligence of ash removal, reducing the need for manual intervention, improving the timeliness and safety of ash removal, and reducing equipment energy consumption.

[0077] In one possible implementation, Figure 2 As shown, the structural diagram of the second embodiment of the method for removing dust accumulation from the pure oxygen burner of the present application is provided. A natural gas and oxygen switch valve is added to the circuit of each pure oxygen burner, a thermocouple is installed at the burner brick above the pure oxygen burner, a regulating valve is installed on the circuit to regulate the natural gas and oxygen, and the flow of natural gas and oxygen is monitored by a flow meter. The detection of the real-time temperature at the burner brick corresponding to a number of pure oxygen burners includes: installing a high-temperature resistant thermocouple in the preset temperature measuring hole of the burner brick above each of the pure oxygen burners, and leading the signal transmission line of the high-temperature resistant thermocouple to the control terminal of the distributed control system through a refractory isolation sleeve; wherein, multiple temperature measuring holes can be arranged at equal intervals or an adjustable temperature measuring hole bracket can be designed to cover the key areas of the thermal field. The detection of the real-time temperature at the burner brick corresponding to a number of pure oxygen burners includes continuously collecting the temperature data of the burner brick corresponding to each of the pure oxygen burners at a set sampling frequency through a distributed control system.

[0078] Specifically, a temperature measuring hole is drilled in the non-stressed area of the burner brick, with a depth of 5-10 mm from the high-temperature radiation surface and the axis perpendicular to the radiation surface; high-temperature and high-thermal paste is applied to the detection end of the thermocouple to fill the gap between the thermocouple and the hole wall to reduce the contact resistance; each thermal resistor is connected to a redundant card, and the card channel is equipped with an open circuit / short circuit detection function to diagnose the sensor status in real time; in addition, the thermocouple can be calibrated in situ at regular intervals through a portable dry furnace to avoid temperature deviation; scrap conditions are set according to the accumulated working time or deviation amount, and the thermocouple is forced to be replaced.

[0079] This embodiment provides more accurate data for the intelligent control of pure oxygen burner lance ash removal by constructing an efficient and accurate real-time monitoring system for burner brick temperature. Compared with manual inspections, it effectively improves the speed of discovering abnormal operating conditions and reduces unplanned downtime.

[0080] In a feasible implementation manner, the preset temperature threshold includes a reference temperature A, a warning threshold a, and an abnormality threshold b, and the value of the abnormality threshold b is greater than the warning threshold a.

[0081] It should be noted that the reference temperature is the theoretical safe temperature under standard operating conditions, which is determined based on the temperature resistance limit of the material and the process heat balance calculation, and is related to factors such as equipment parameters, furnace load and fuel type; the warning threshold is usually selected from 3% to 5% of the reference temperature, which is the allowable temperature fluctuation range and is used for early warning of dust accumulation or thermal offset; the abnormal threshold is usually selected from 5% to 10% of the reference temperature, which is used for severe dust accumulation warning, execution of automatic dust cleaning program, and recording of warning logs; statistics are collected on the number of severe dust accumulation warnings in the past year, and the effective warning rate is obtained based on the number of correct warnings and the total number of abnormalities, and the causes of fault phenomena such as frequent false alarms are analyzed.

[0082] This embodiment uses temperature stratification threshold management and control logic to achieve precise control of the entire process from early dust accumulation warning to emergency dust accumulation warning, ensuring the safe and efficient operation of the pure oxygen burner system under dust accumulation conditions.

[0083] In a feasible embodiment, the determining the real-time state of the pure oxygen burner corresponding to the burner brick according to the comparison result of the real-time temperature at the burner brick and the preset temperature threshold comprises:

[0084] If the real-time temperature of the burner brick is within the first temperature range, the pure oxygen burner corresponding to the burner brick is marked as normal, and the first temperature range is the reference temperature A±the warning threshold a;

[0085] If the real-time temperature at the burner brick exceeds the second temperature range, the pure oxygen burner corresponding to the burner brick is marked as abnormal, and the second temperature range is the reference temperature A±abnormal threshold b;

[0086] If the real-time temperature at the burner brick is within the third temperature range, the pure oxygen burner corresponding to the burner brick is marked as a warning state, and the third temperature range is two temperature intervals of reference temperature A-abnormal threshold b to reference temperature A-warning threshold a and reference temperature A+warning threshold a to reference temperature A+abnormal threshold b.

[0087] It should be noted that the normal state indicates that the combustion is stable and no intervention is required. The warning state indicates that the ash accumulation is in the early stage and light intervention is required, such as the manual or semi-automatic ash removal mode can be selected; the abnormal state indicates that the ash is blocked and there is a flame deviation phenomenon. The automatic ash removal mode is executed first, or it is adjusted to the manual or semi-automatic ash removal mode; for example, when the initial state is normal, three consecutive samplings exceed the first temperature range, an audible and visual warning or automatic shutdown is triggered. If the sampling temperature exceeds the second temperature range at this time, an abnormal warning is triggered. If the sampling temperature is within the third temperature range, the warning state lasts for 5 minutes and the temperature trend continues to deviate, triggering an emergency shutdown; the temperature curve graph and distribution thermal map of each pure oxygen burner are displayed in real time through the visual interface, such as using green to map the normal state, yellow to map the warning state, and red to map the abnormal state.

[0088] This implementation method continuously optimizes the false alarm rate by establishing a clear mapping relationship between temperature ranges and status, greatly shortening the original manual inspection time to an automatic trigger time of less than 10 seconds; by integrating temperature data into the factory distributed control system DCS, the temperature threshold is dynamically adjusted based on the historical dust accumulation frequency, thereby improving the cleaning efficiency and accuracy.

[0089] In a feasible implementation manner, the working mode of determining the dust removal task of the burner brick corresponding to the pure oxygen burner according to the real-time status includes:

[0090] If the pure oxygen burner corresponding to the burner brick is in a normal state, an operation maintenance instruction corresponding to the pure oxygen burner is generated;

[0091] If the pure oxygen lance corresponding to the burner brick is in an early warning state, a dust removal prompt instruction corresponding to the pure oxygen lance is generated, and the dust removal task corresponding to the pure oxygen lance of the burner brick is determined to be executed in manual mode or semi-automatic mode;

[0092] If the pure oxygen lance corresponding to the burner brick is in an abnormal state, a dust cleaning trigger instruction corresponding to the pure oxygen lance is generated, and the dust cleaning task corresponding to the pure oxygen lance of the burner brick is determined to execute the automatic mode.

[0093] It should be noted that the operation maintenance instruction is used to maintain the current combustion parameters and no ash cleaning operation is required; the ash cleaning prompt instruction is used to intervene in the ash accumulation problem at an early stage to prevent the working condition from deteriorating, such as through sound and light alarms, control interface pop-up windows or mobile terminal push, to prompt the operator or system to intervene in inspection or ash cleaning in advance to avoid ash accumulation causing equipment failure. The manual mode or the semi-automatic mode of human-machine collaboration can be dynamically selected to optimize the efficiency and safety of the ash cleaning task, control the ash accumulation problem in the bud stage, and avoid burner bricks or breast wall melting due to ash blockage; the ash accumulation trigger instruction is used to urgently block the spread of risks, minimize equipment damage and production progress losses, skip the manual confirmation link and immediately trigger the automatic ash cleaning mode to execute the automatic ash cleaning procedure.

[0094] Further, refer to Figure 3 The third embodiment of the method for removing dust from a pure oxygen burner of the present application provides a flow chart based on the above Figure 3 The example diagram shown further refines the step of "controlling the opening of each of the on-off valves and flow regulating valves of the pure oxygen burner according to the working mode" in step S30. When the burner brick performs the manual mode corresponding to the dust removal task of the pure oxygen burner, steps A301 to A304 are included:

[0095] Step A301, locking the openings of the flow control valves of all pure oxygen burners, wherein the flow control valves include at least a natural gas flow control valve and an oxygen flow control valve;

[0096] It should be noted that the purpose of locking the opening of the flow control valves of all pure oxygen burners is to prevent the pure oxygen burners from becoming unstable due to pressure fluctuations or changes in heat load. A locking signal is sent through the DCS system, and the valve position is kept unchanged through the "proportional-integral-differential" PID controller; the DCS system can proportionally increase the fuel flow of adjacent pure oxygen burners based on the total heat load gap after the target burner is shut down, so as to maintain the overall temperature fluctuation of the furnace stable.

[0097] Step A302, closing the natural gas switch valve of the target pure oxygen burner, and closing the oxygen switch valve of the target pure oxygen burner after a first preset delay;

[0098] It should be noted that the purpose of closing the natural gas switch valve first is to prevent the continuous supply of natural gas from causing explosion, delaying the first preset time to ensure that the residual natural gas in the combustion chamber is completely burned out, and finally closing the oxygen switch valve is to avoid negative pressure backfire; in addition, CO / O2 concentration monitoring can be introduced as a trigger condition for closing the oxygen switch valve.

[0099] Step A303: start the automatic ash cleaning program within a second preset time after the firing is stopped, and monitor the real-time temperature of the burner brick corresponding to the target pure oxygen burner to see if it returns to normal;

[0100] It should be noted that the automatic cleaning program at least includes controlling mechanical scraping and starting high-pressure blowing. The mechanical scraping is used to remove sintered lumps, and the high-pressure blowing is used to remove loose accumulated dust. If the real-time temperature does not return to normal after the automatic cleaning program is started to perform cleaning within the second preset time, the standby burner will be automatically started or manual intervention will be notified. When the same burner is cleaned more than 3 times within 24 hours, the burner will be forced to stop for maintenance.

[0101] Step A304: reopen the oxygen switch valve of the target pure oxygen burner, and open the natural gas switch valve of the target pure oxygen burner after the first preset time has elapsed.

[0102] It should be noted that if the opening of the switch valve times out, the DCS system will determine it as a fault, skip the burner and issue an early warning; by preferentially opening the oxygen switch valve to establish an oxidizing environment, sufficient flame retardant is provided for ignition, preventing the formation of a fuel-rich mixture, ensuring flame stability at the moment of ignition, and preventing explosions; the first preset delay time is to ensure that oxygen diffuses to the entire space of the combustion chamber to prevent local hypoxia from causing incomplete combustion; the natural gas switch valve can be slowly opened to a safe opening, and the fuel supply can be gradually increased according to the combustion load curve to avoid thermal shock damage to the burner bricks.

[0103] Specifically, when a pure oxygen burner in a float glass melting furnace triggered an instruction to execute the automatic cleaning mode due to dust accumulation, the oxygen sensor malfunctioned and the reading was abnormal (such as continuously displaying 25% O2). At this time, the system automatically switched to the backup sensor and detected that the actual oxygen concentration was 27%. After increasing it to the required oxygen concentration, it delayed the first preset time to open the natural gas switch valve, and gradually opened the natural gas switch valve until successful ignition; when the flame detector detected local flickering during the opening process of the natural gas switch valve, it automatically reduced the opening of the natural gas switch valve, and continued to increase the load after the combustion stabilized.

[0104] This embodiment selects the target pure oxygen burner in manual mode to perform the dust removal task, which improves the level of automation, helps reduce the risk of manual intervention and dependence on manual operation, optimizes process stability, improves maintenance efficiency, and shortens the time spent on dust removal tasks.

[0105] Further, refer to Figure 4 The fourth embodiment of the method for removing dust from a pure oxygen burner of the present application provides a flow chart based on the above Figure 4 The example diagram shown further refines the step of "controlling the opening of each of the switch valves and flow control valves of the pure oxygen burner according to the working mode" in step S30. When the burner brick performs the semi-automatic mode corresponding to the ash removal task of the pure oxygen burner, steps A401 to A403 are included:

[0106] Step A401, selecting pure oxygen burners No. 1 to No. n as target pure oxygen burners in a preset order;

[0107] It should be noted that the pure oxygen burners in the preset queue are all in a warning state; when selecting the queue order, the operator should avoid cleaning adjacent burners at the same time to prevent a sudden drop in local heat load from causing damage to the furnace; in addition, when dust is concentrated in a certain area, real-time thermal imaging data can be introduced to dynamically adjust the queue priority.

[0108] Step A402: starting the dust removal task of the first target pure oxygen burner according to the preset sequence, wherein the first target pure oxygen burner executes the dust removal task process corresponding to the manual mode timing;

[0109] It should be noted that the target pure oxygen burner No. 1 automatically adapts to execute steps A301 to A304 for dust removal, such as automatically locking all pure oxygen burner flow control valves, activating the dynamic thermal compensation algorithm, and proportionally increasing the fuel flow of adjacent pure oxygen burners according to the total heat load gap after the target pure oxygen burner is shut down; after the target pure oxygen burner is fully automatically shut down, the automatic dust cleaning program is started, the dust cleaning equipment is automatically positioned, and the operator can remotely monitor; the system independently determines the restart conditions and resumes combustion according to the safety curve.

[0110] Step A403: If the dust removal task of the target pure oxygen burner No. 1 is completed, the dust removal task of the next target pure oxygen burner in the preset order is started after a first interval delay, and the tasks are executed sequentially until the dust removal tasks of all pure oxygen burners in the queue of the preset order are completed; wherein, if there is a failure in the dust removal of the pure oxygen burner, the target pure oxygen burner with the failed dust removal is skipped and the fault information is recorded, and the dust removal task of the next target pure oxygen burner in the preset order is continued, and the fault information is pushed to the operation interface to trigger a manual intervention prompt.

[0111] It should be noted that the successful removal of ash accumulation at least includes that after the ash accumulation is removed, the burner brick temperature recovers to the first temperature range within the set time and remains stable, the cleaning equipment completely performs the predetermined action without abnormal interruption, the ash layer thickness on the burner brick surface drops below the safety threshold, the flame stability meets the standard after restart, and the oxygen-fuel ratio returns to normal; the judgment conditions for the failure of ash accumulation removal at least include that the temperature has not recovered, such as not reaching the first temperature range after 5 minutes of cleaning, the scraping resistance exceeds the limit, such as the scraper motor current exceeds the limit by 120% for 10 seconds, the purge pressure is insufficient, and repeated cleaning exceeds the limit, etc.; the fault information at least includes the faulty pure oxygen burner number, temperature curve, scraper pressure log, oxygen concentration deviation value, etc., and the data update cycle is kept less than or equal to 1s.

[0112] Specifically, a semi-automatic mode of cleaning is performed in a float glass melting furnace. The furnace is configured with 24 pure oxygen burners arranged in a ring. The real-time status of all pure oxygen burners is obtained, the number of the pure oxygen burners in the warning state is obtained, and the pure oxygen burner dust removal task in the semi-automatic mode is performed; if the preset sequence is to select pure oxygen burners with an interval of 2 or more and in the warning state, a sequence queue [#1, #5, #8, #13, #19] is generated; the pure oxygen burner #1 is cleaned, which takes 18 minutes, and the temperature returns to the first temperature range, and then the pure oxygen burner #5 is cleaned. If there is If the scraper is stuck, the fault is marked and pushed to the control interface, pure oxygen burner #5 is automatically skipped, and the cleaning of pure oxygen burner #8 continues. At this time, pure oxygen burners #4 and #6 can be activated to thermally compensate for the heat load gap of pure oxygen burner #5. The process is circulated in sequence until the ash accumulation of all pure oxygen burners in the sequence queue is cleared. The final result is that 4 of the 5 target pure oxygen burners in the warning state are successfully cleaned, and 1 is faulty. The overall furnace temperature fluctuation is ≤±15℃, which does not affect the quality of the glass liquid. A maintenance work order for the faulty pure oxygen burner #5 is automatically generated, including the abnormal current data of the scraper motor.

[0113] In this embodiment, the semi-automatic cycle cleaning is significantly more efficient than the fully manual mode, and the introduction of dynamic thermal compensation reduces the temperature fluctuation of the furnace. The faulty pure oxygen burner skipping and thermal compensation mechanism reduce production interruptions. The operator only needs to monitor the control interface, reducing the frequency of manual intervention.

[0114] Further, refer to Figure 5 The fifth embodiment of the method for removing dust from a pure oxygen burner of the present application provides a flow chart based on the above Figure 5 The example diagram shown further refines the step of "controlling the opening of each of the on-off valves and flow regulating valves of the pure oxygen burner according to the working mode" in step S30. When the burner brick performs the automatic mode corresponding to the dust removal task of the pure oxygen burner, steps A501 to A504 are included:

[0115] Step A501, monitoring the real-time temperature of the pure oxygen burner in an abnormal state, and verifying that the real-time temperature is consistent with the abnormal duration;

[0116] It should be noted that to define the minimum abnormal duration threshold, the temperature must continuously exceed the minimum abnormal duration threshold. If the temperature drops below the threshold within a certain period of time, such as within 3 seconds, it is regarded as a momentary interference and is not counted in the abnormal duration, or a manual review process is triggered.

[0117] Step A502: Generate an automatic priority queue for pure oxygen lance dust removal based on the degree of temperature anomaly deviation;

[0118] It should be noted that the degree of temperature anomaly deviation can be determined by comparing the current temperature T with the third temperature threshold T. b The difference between the two, or the temperature rise rate dT / dt is obtained; such as the temperature deviation degree P = α*(TT b )+β*dT / dt, where α and β are weight coefficients, such as α=0.7, β=0.3, α and β are dynamically adjusted, and the temperature change rate dT / dt is fitted with the latest 10 minutes data through the latest square multiplication method, so that the processing delay of the most dangerous pure oxygen burner is reduced.

[0119] Step A503, processing the pure oxygen burners in abnormal state in sequence according to the priority order of the automatic priority queue; wherein the processing interval time of the pure oxygen burners in adjacent priority order is the second interval time;

[0120] It should be noted that the second interval time needs to be calculated comprehensively based on factors such as the thermal inertia of the furnace, the physical distance between adjacent burners, and the moving time of the cleaning equipment to effectively reduce the thermal fluctuations of the furnace.

[0121] Step A504 monitors the real-time temperature of the pure oxygen burner in the abnormal state after the ash removal task is completed. If the real-time temperature returns to the first temperature range, the ash removal is recorded as successful. Otherwise, secondary ash removal is triggered or a manual intervention prompt is triggered.

[0122] It should be noted that the secondary cleaning and removal at least includes increasing the purge pressure and extending the scraping time. If the secondary cleaning fails, the pure oxygen burner is locked, the backup pure oxygen burner is started, and a fault report is pushed; the secondary cleaning strategy helps to narrow the impact of a single failure and reduce the need for manual intervention.

[0123] This implementation method reduces the processing delay time of dangerous pure oxygen burners by prioritizing temperature deviations and temperature change rates, achieves accurate response of dangerous pure oxygen burners, dynamically optimizes the second interval time to reduce furnace thermal fluctuations, enables a secondary cleaning strategy to improve fault tolerance, and reduces the need for manual intervention. The fully automatic mode further improves production efficiency and reduces production capacity losses compared to the manual mode and semi-automatic mode.

[0124] Further, refer to Figure 6 The sixth embodiment of the method for removing dust from a pure oxygen burner of the present application provides a flow chart based on the above Figure 6 The example diagram shown further refines the step of "if the dust removal task is completed, then adjusting the opening of the switch valve and the flow control valve includes" in step S40, including steps A601 to A602:

[0125] Step A601: If the dust removal task is completed, the opening lock of the flow control valves of all pure oxygen burners is released, and the flow control valves of all pure oxygen burners are switched from the locked state to the automatic adjustment state;

[0126] It should be noted that after the target pure oxygen burner ash removal task is completed, a command is sent through the control system to release the fixed opening limit of the flow control valves of all pure oxygen burners, and the flow control valves are restored from the "locked state" of manual intervention to the "automatic adjustment state" of system autonomous control, so that they can dynamically adjust the oxygen and natural gas supply according to real-time operating conditions (such as temperature, pressure, and flow requirements), avoiding the reduction of system flexibility due to long-term locking, ensuring that non-target pure oxygen burners are reintegrated into the overall combustion control logic, and maintaining process stability.

[0127] Step A602, obtain the opening difference between the current switch valve of the target pure oxygen burner and the switch valve in the initial working state of the target pure oxygen burner. If the opening difference is greater than the preset opening difference threshold, gradually adjust the opening of the switch valve to the initial working state of the target pure oxygen burner at a preset rate; otherwise, jump to the opening of the switch valve in the initial working state of the target pure oxygen burner.

[0128] It should be noted that the difference between the initial opening value of the on-off valve in the target pure oxygen burner's initial operating state recorded before the ash removal task and the current opening value is compared. If the opening difference exceeds a preset threshold (e.g., 5% opening), a gradual adjustment of the on-off valve opening is triggered; otherwise, the valve is directly reset to the initial opening value. A preset rate control is used to gradually adjust the on-off valve opening at a system-preset safety rate to avoid oxygen flow oscillation or combustion fluctuations caused by sudden changes. Real-time feedback of the on-off valve opening change is required until it is consistent with the initial value to ensure a smooth transition. When the opening difference is within the fault tolerance range, a reset command is directly sent to the flow control valve, instantly switching to the initial opening, shortening the recovery time. The preset opening difference threshold is determined based on valve characteristics (e.g., linearity, response delay) and combustion system tolerance experiments, with a typical value of 3% to 5%. The preset rate setting must match the mechanical properties of the valve actuator (e.g., motor speed for electric valves and air supply rate for pneumatic valves). Before the ash removal task is initiated, the valve opening of the target pure oxygen burner in the initial operating state is automatically backed up to the control system cache to ensure the accuracy of the recovery baseline.

[0129] This implementation method achieves gradual adjustment in large difference scenarios through preset opening difference thresholds, preset rate settings and initial value recording mechanisms, prevents sudden changes in oxygen supply leading to unstable combustion, and direct jumps in small difference scenarios, optimizes response efficiency, reduces unnecessary delays, and quickly restores normal operation.

[0130] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the method for removing ash from the pure oxygen burner of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0131] This application also provides a pure oxygen burner dust removal device, please refer to Figure 7 The pure oxygen burner dust removal device includes:

[0132] The temperature detection module 10 is used to detect the real-time temperature of the burner bricks corresponding to the pure oxygen burners;

[0133] A state judgment module 20 is used to determine the real-time state of the pure oxygen burner corresponding to the burner brick according to the comparison result of the real-time temperature at the burner brick and the preset temperature threshold;

[0134] a mode control module 30 for determining, based on the real-time status, the operating mode of the burner brick corresponding to the ash removal task of the pure oxygen burner, and controlling the opening of each of the on-off valves and the flow regulating valve of the pure oxygen burner according to the operating mode;

[0135] The state recovery module 40 is configured to adjust the openings of the switch valve and the flow regulating valve if the dust removal task is completed.

[0136] The pure oxygen burner ash removal device provided in this application utilizes the pure oxygen burner ash removal method described in the aforementioned embodiment, resolving the technical issue of requiring manual intervention to remove ash from pure oxygen burners, resulting in burner bricks or breast walls being burned due to inability to remove ash promptly. Compared to the prior art, the pure oxygen burner ash removal device provided in this application offers the same beneficial effects as the pure oxygen burner ash removal method described in the aforementioned embodiment. Other technical features of the pure oxygen burner ash removal device are the same as those disclosed in the aforementioned embodiment and are not further elaborated upon here.

[0137] The present application provides a pure oxygen burner ash removal device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the pure oxygen burner ash removal method in the above-mentioned embodiment one.

[0138] Reference below Figure 8 , which shows a schematic structural diagram of a pure oxygen burner dust removal device suitable for implementing the embodiments of the present application. The pure oxygen burner dust removal device in the embodiments of the present application can include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), and in-vehicle terminals (e.g., in-vehicle navigation terminals), as well as fixed terminals such as digital TVs and desktop computers. Figure 8 The pure oxygen burner dust removal device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0139] like Figure 8 As shown, the pure oxygen burner dust removal device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory 1002 or a program loaded from a storage device 1003 into a random access memory 1004. The random access memory 1004 also stores various programs and data required for the operation of the pure oxygen burner dust removal device. The processing device 1001, the read-only memory 1002, and the random access memory 1004 are connected to each other via a bus 1005. An input / output interface 1006 is also connected to the bus. Typically, the following systems can be connected to the input / output interface 1006: an input device 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. Communication device 1009 can allow the pure oxygen lance dust removal device to communicate wirelessly or wired with other devices to exchange data. Although the figure shows a pure oxygen lance dust removal device with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have alternatively.

[0140] In particular, according to the embodiments disclosed in the present application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, the embodiments disclosed in the present application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program comprising program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device 1003, or installed from a read-only memory 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are performed.

[0141] The pure oxygen burner ash removal device provided in this application utilizes the pure oxygen burner ash removal method described in the aforementioned embodiment, resolving the technical issue of requiring manual intervention to remove ash from pure oxygen burners, resulting in burner bricks or breast walls being burned due to inability to remove ash in a timely manner. Compared to the prior art, the pure oxygen burner ash removal device provided in this application offers the same beneficial effects as the pure oxygen burner ash removal method described in the aforementioned embodiment. Other technical features of the pure oxygen burner ash removal device are the same as those disclosed in the aforementioned embodiment and are not further elaborated upon here.

[0142] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0143] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0144] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, a computer program) stored thereon, wherein the computer-readable program instructions are used to execute the pure oxygen lance dust removal method in the above-mentioned embodiment.

[0145] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0146] The computer-readable storage medium may be included in the pure oxygen burner dust removal device; or may exist independently without being assembled into the pure oxygen burner dust removal device.

[0147] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the pure oxygen burner ash removal device, the pure oxygen burner ash removal device: detects the real-time temperature of the burner bricks corresponding to several pure oxygen burners; determines the real-time status of the pure oxygen burner corresponding to the burner brick based on the comparison result between the real-time temperature of the burner brick and the preset temperature threshold; determines the working mode of the ash removal task of the pure oxygen burner corresponding to the burner brick based on the real-time status, and controls the opening of the switch valve and flow control valve of each pure oxygen burner according to the working mode; if the ash removal task is completed, adjusts the opening of the switch valve and flow control valve.

[0148] Computer program code for performing the operations of the present application may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages such as Java, Smalltalk, C++, and conventional procedural programming languages such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on the remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0149] The flow charts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, program segment or a part of code, and the module, program segment or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0150] The modules described in the embodiments of the present application may be implemented in software or hardware, wherein the name of a module does not necessarily limit the unit itself.

[0151] The computer-readable storage medium provided in this application is a computer-readable storage medium storing computer-readable program instructions (i.e., a computer program) for executing the above-described method for removing ash from a pure oxygen burner. This computer-readable storage medium can address the technical issue of requiring manual intervention to remove ash from a pure oxygen burner, which can lead to burnout of burner bricks or breast walls due to inability to remove ash promptly. Compared to the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the method for removing ash from a pure oxygen burner provided in the above-described embodiment, and are not further elaborated here.

[0152] The present application also provides a computer program product, comprising a computer program, which implements the steps of the above-mentioned pure oxygen burner dust removal method when executed by a processor.

[0153] The computer program product provided in this application can resolve the technical problem of manual intervention required to remove ash deposits from pure oxygen burners, which can lead to burnout of burner bricks or breast walls due to inability to remove ash deposits in a timely manner. Compared to the prior art, the beneficial effects of the computer program product provided in this application are similar to those of the pure oxygen burner ash removal method provided in the aforementioned embodiment, and are not further elaborated here.

[0154] The above description is only part of the embodiments of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for removing dust from a pure oxygen burner, characterized in that: The method comprises: Detect the real-time temperature of the burner bricks corresponding to several pure oxygen burners; Determine the real-time state of the pure oxygen burner corresponding to the burner brick according to the comparison result of the real-time temperature at the burner brick and the preset temperature threshold; Determine the working mode of the burner brick corresponding to the dust removal task of the pure oxygen burner according to the real-time status, and control the opening of the switch valve and flow control valve of each pure oxygen burner according to the working mode; If the dust removal task is completed, the openings of the switch valve and the flow regulating valve are adjusted.

2. The method for removing dust from a pure oxygen burner according to claim 1, wherein: The step of detecting the real-time temperature of the burner bricks corresponding to the plurality of pure oxygen burners includes: A high-temperature resistant thermocouple is installed in the preset temperature measuring hole of the burner brick above each pure oxygen burner, and a signal transmission line of the high-temperature resistant thermocouple is led out to the control terminal of the distributed control system through a refractory isolation sleeve.

3. The method for removing dust accumulation from a pure oxygen burner according to claim 2, wherein: The preset temperature thresholds include a reference temperature A, a warning threshold a, and an abnormality threshold b, and the value of the abnormality threshold b is greater than the warning threshold a.

4. The method for removing dust accumulation from a pure oxygen burner according to claim 3, wherein: The step of determining the real-time state of the pure oxygen burner corresponding to the burner brick according to the comparison result between the real-time temperature at the burner brick and the preset temperature threshold comprises: If the real-time temperature of the burner brick is within the first temperature range, the pure oxygen burner corresponding to the burner brick is marked as normal, and the first temperature range is the reference temperature A±the warning threshold a; If the real-time temperature at the burner brick exceeds the second temperature range, the pure oxygen burner corresponding to the burner brick is marked as abnormal, and the second temperature range is the reference temperature A±abnormal threshold b; If the real-time temperature at the burner brick is within the third temperature range, the pure oxygen burner corresponding to the burner brick is marked as a warning state, and the third temperature range is two temperature intervals of reference temperature A-abnormal threshold b to reference temperature A-warning threshold a and reference temperature A+warning threshold a to reference temperature A+abnormal threshold b.

5. The method for removing dust accumulation from a pure oxygen burner according to claim 4, wherein: The working mode of determining the execution of the dust removal task of the burner brick corresponding to the pure oxygen burner according to the real-time status includes: If the pure oxygen burner corresponding to the burner brick is in a normal state, an operation maintenance instruction corresponding to the pure oxygen burner is generated; If the pure oxygen lance corresponding to the burner brick is in an early warning state, a dust removal prompt instruction corresponding to the pure oxygen lance is generated, and the dust removal task corresponding to the pure oxygen lance of the burner brick is determined to be executed in manual mode or semi-automatic mode; If the pure oxygen lance corresponding to the burner brick is in an abnormal state, a dust cleaning trigger instruction corresponding to the pure oxygen lance is generated, and the dust cleaning task corresponding to the pure oxygen lance of the burner brick is determined to execute the automatic mode.

6. The method for removing dust accumulation from a pure oxygen burner according to claim 5, wherein: The step of controlling the opening of the switch valve and the flow regulating valve of each of the pure oxygen burners according to the working mode includes: When the burner brick executes the manual mode for the dust removal task corresponding to the pure oxygen burner, the opening of the flow control valves of all pure oxygen burners is locked, and the flow control valves include at least a natural gas flow control valve and an oxygen flow control valve; Closing the natural gas switch valve of the target pure oxygen burner, and closing the oxygen switch valve of the target pure oxygen burner after a first preset delay; Start the automatic ash cleaning program within the second preset time after the ceasefire, and monitor the real-time temperature of the burner brick corresponding to the target pure oxygen burner to return to normal; The oxygen switch valve of the target pure oxygen burner is reopened, and the natural gas switch valve of the target pure oxygen burner is opened after the first preset time is delayed.

7. The method for removing dust accumulation from a pure oxygen burner according to claim 6, wherein: The step of controlling the opening of the switch valve and the flow regulating valve of each of the pure oxygen burners according to the working mode further includes: When the burner brick executes the semi-automatic mode for the dust removal task corresponding to the pure oxygen burner, pure oxygen burners No. 1 to No. n are selected as the target pure oxygen burners in the preset order; Starting the dust removal task of the first target pure oxygen burner according to the preset sequence, wherein the first target pure oxygen burner executes the dust removal task process corresponding to the manual mode timing; If the dust removal task of the target pure oxygen burner No. 1 is completed, the dust removal task of the next target pure oxygen burner in the preset order is started after a first interval delay, and is executed sequentially until the dust removal tasks of all pure oxygen burners in the queue of the preset order are completed; wherein, if the dust removal of a target pure oxygen burner fails, the target pure oxygen burner that fails in dust removal is skipped and the fault information is recorded, and the dust removal task of the next target pure oxygen burner in the preset order is continued, and the fault information is pushed to the operation interface to trigger a manual intervention prompt.

8. The method for removing dust accumulation from a pure oxygen burner according to claim 7, wherein: The step of controlling the opening of the switch valve and the flow regulating valve of each of the pure oxygen burners according to the working mode further includes: When the burner brick executes the automatic mode for the dust removal task corresponding to the pure oxygen burner, the real-time temperature of the pure oxygen burner in the abnormal state is monitored and it is verified that the real-time temperature is consistent with the abnormal duration; Generate an automatic priority queue for pure oxygen burner ash removal based on the degree of temperature anomaly deviation; Processing the pure oxygen burners in abnormal state in sequence according to the priority order of the automatic priority queue; wherein the processing interval time of the pure oxygen burners in adjacent priority order is the second interval time; The real-time temperature of the pure oxygen burner in the abnormal state after the ash removal task is completed is monitored. If the real-time temperature returns to the first temperature range, the ash removal is recorded as successful. Otherwise, secondary ash removal is triggered or a manual intervention prompt is triggered.

9. The method for removing dust accumulation from a pure oxygen burner according to claim 8, wherein: If the dust removal task is completed, the step of adjusting the opening of the switch valve and the flow regulating valve includes: If the dust removal task is completed, the opening lock of the flow regulating valves of all pure oxygen burners is released, and the flow regulating valves of all pure oxygen burners are switched from the locked state to the automatic adjustment state; Obtain the opening difference between the current on-off valve of the target pure oxygen burner and the on-off valve in the initial working state of the target pure oxygen burner. If the opening difference is greater than a preset opening difference threshold, gradually adjust the opening of the on-off valve to the initial working state of the target pure oxygen burner at a preset rate; otherwise, jump to the opening of the on-off valve in the initial working state of the target pure oxygen burner.

10. A pure oxygen burner dust removal device, characterized in that: The device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the pure oxygen burner dust removal method according to any one of claims 1 to 9.

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