An on-line detection and control system for glass furnace flue gas atmosphere

Abstract

The utility model discloses a kind of glass kiln flue gas atmosphere on-line detection and control system, including atmosphere detection system, data acquisition module, data processing module, control execution module;Wherein atmosphere detection system detects the atmosphere parameter in kiln through sensor, its output end is connected to data acquisition module;The data acquisition module is connected with data processing module, and the data acquisition module is sent into data processing module after sampling atmosphere parameter;The output end of the data processing module is connected to control execution module, to drive control execution module according to atmosphere parameter, and the control execution module is used to control kiln operating parameter.The utility model is characterized in that: flue gas atmosphere detection is associated with kiln production operation control, automatically adjust operating parameter in kiln by flue gas atmosphere detection, to improve product quality, improve the automation level of glass production.

Description

Technical Field

[0001] This utility model relates to the field of glass production control, and in particular to an online detection and control system for delayed atmosphere in glass kilns. Background Technology

[0002] In the glass manufacturing process, the stability and control of the furnace flue gas atmosphere are crucial to the quality of the glass and production efficiency. Therefore, the furnace flue gas atmosphere is monitored during production. For example, a method for detecting residual oxygen value in float glass furnace flue gas, patent application number 202410344550.9, accurately detects residual oxygen value to monitor glass production, promptly identify abnormalities in the glass production process, and is very important for quality control in glass production.

[0003] However, in existing technologies, there is a disconnect between flue gas atmosphere detection and production control. The handling of abnormal flue gas atmosphere detection often relies on manual control and experience-based adjustments. Maintaining stable kiln flue gas atmosphere involves periodic offline detection and manual adjustments. This method suffers from poor real-time performance, low accuracy, high energy consumption, and low safety. Furthermore, it lacks a correlation between detection results and production control, resulting in a relatively low level of automation. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an online detection and control system for flue gas atmosphere in glass kilns. This system links flue gas atmosphere detection with kiln production and operation control, and automatically adjusts the operating parameters in the kiln through flue gas atmosphere detection, thereby improving product quality and increasing the level of automation in glass production.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an online detection and control system for flue gas atmosphere in a glass kiln, comprising an atmosphere detection system, a data acquisition module, a data processing module, and a control execution module;

[0006] The atmosphere detection system detects the atmosphere parameters inside the kiln through sensors, and its output is connected to the data acquisition module.

[0007] The data acquisition module is connected to the data processing module, and the data acquisition module samples the atmosphere parameters and sends them to the data processing module.

[0008] The output of the data processing module is connected to the control execution module to drive the control execution module according to the atmosphere parameters. The control execution module is used to control the kiln operating parameters.

[0009] The atmosphere detection system includes a sensor system installed inside the kiln. The sensor system includes an oxygen concentration sensor, a carbon dioxide concentration sensor, a carbon monoxide concentration sensor, a nitrogen oxide concentration sensor, a sulfur dioxide concentration sensor, a humidity sensor, and / or a temperature sensor, used to collect data on oxygen concentration, carbon dioxide concentration, nitric oxide concentration, nitrogen oxide concentration, sulfur dioxide concentration, humidity, and temperature inside the kiln, respectively.

[0010] The data acquisition module includes an analog-to-digital converter, which samples the data according to the sampling frequency and transmits the data to the data processing module via wired or wireless means.

[0011] The data processing module includes an industrial-grade PLC controller, which processes the received kiln flue gas parameters and drives the corresponding control execution module to perform actions.

[0012] The control execution module includes a fuel control system, an air supply system, and an exhaust gas emission system; the output of the data processing module is connected to the fuel control system, the air supply system, the exhaust gas emission system, and / or the temperature and humidity control system, respectively, to control the fuel supply, air supply, exhaust gas emission, and / or temperature and humidity inside the kiln.

[0013] The data processing module is connected to the monitoring screen, and the data processing module drives the monitoring screen to display the collected flue gas atmosphere parameter data.

[0014] The data processing module is connected to the alarm and is used to issue an alarm after abnormal flue gas parameters are detected.

[0015] The advantages of this invention are: it links flue gas atmosphere detection with kiln production and operation control, automatically adjusting kiln operating parameters through flue gas atmosphere detection, thereby improving product quality and increasing the automation level of glass production. The specific advantages of this solution are as follows:

[0016] 1. Real-time monitoring: Real-time monitoring of the kiln atmosphere is achieved through online detection technology.

[0017] 2. High-precision control: Utilizing advanced sensors and data processing technology to improve control accuracy.

[0018] 3. Automated operation: The kiln atmosphere is automatically adjusted through an automatic control system.

[0019] 4. Product quality improvement: Stable atmosphere control helps improve the quality of glass products.

[0020] 5. Energy conservation and emission reduction: Optimize fuel and air supply to reduce energy consumption and exhaust emissions.

[0021] 6. High safety: The automatic control system reduces manual operation and lowers safety risks. Attached Figure Description

[0022] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0023] Figure 1 This is a schematic diagram illustrating the structural principle of the online detection and control system of this utility model. Detailed Implementation

[0024] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and the description of the preferred embodiments.

[0025] The online detection and control system provided in this embodiment combines the detection of kiln flue gas atmosphere parameters with the control of kiln process parameters. This achieves automated adjustment of some process parameters within the glass kiln based on the flue gas parameters, thereby realizing automatic detection and automatic adjustment of production parameters based on the detection results. This improves the compliance and quality of the glass production process and enhances product quality. The specific solution is as follows:

[0026] like Figure 1 The above describes an online detection and control system for flue gas atmosphere in a glass kiln, comprising an atmosphere detection system, a data acquisition module, a data processing module, and a control execution module.

[0027] The atmosphere detection system detects the atmosphere parameters inside the kiln through sensors, and its output is connected to the data acquisition module.

[0028] The data acquisition module is connected to the data processing module. The data acquisition module samples the atmospheric parameters and sends them to the data processing module.

[0029] The output of the data processing module is connected to the control execution module, which drives the control execution module according to the atmosphere parameters. The control execution module is used to control the kiln operating parameters.

[0030] The atmosphere detection system includes a sensor system installed inside the kiln. The sensor system includes oxygen concentration sensors, carbon dioxide concentration sensors, carbon monoxide concentration sensors, nitrogen oxide concentration sensors, sulfur dioxide concentration sensors, humidity sensors, and / or temperature sensors, which are used to collect data on oxygen concentration, carbon dioxide concentration, nitric oxide concentration, nitrogen oxide concentration, sulfur dioxide concentration, humidity, and temperature inside the kiln, respectively.

[0031] Atmosphere detection primarily involves collecting core data within the kiln. Various flue gas atmosphere sensors and analysis devices are installed at key locations inside the kiln to monitor atmospheric parameters in real time. Specific parameters include, but are not limited to: oxygen concentration (O2), carbon dioxide concentration (CO2), carbon monoxide concentration (CO), nitrogen oxide concentration (NOx), sulfur dioxide concentration (SO2), humidity, and temperature. Data from within the kiln is monitored through various sensors. Sensor selection must be adapted to the kiln environment, possessing high accuracy and high response speed, and capable of long-term stable operation in high-temperature, high-dust, and highly corrosive kiln environments.

[0032] The data acquisition module includes an analog-to-digital converter (ADC). The ADC samples the data according to a sampling frequency and transmits the data to the data processing module via wired or wireless means. The data acquired by the sensors is an analog signal, which needs to be converted into a digital signal for easier transmission and processing. Therefore, the ADC function of the data acquisition module converts the data into a digital signal at a fixed sampling rate and sends it to the data processing module. The data acquisition module requires a high sampling rate and anti-interference capabilities; the high sampling rate ensures the real-time performance and accuracy of the data. Anti-interference capabilities ensure stable operation in the high-temperature, high-dust, and high-electromagnetic-interference environment of the kiln.

[0033] The data processing module includes an industrial-grade PLC controller, which processes the received kiln flue gas parameters and drives the corresponding control module actions. This data processing module serves as the data processing center, analyzing and processing the data. It can employ an industrial-grade PLC controller or a microcontroller, such as a Siemens S7 series PLC controller, which possesses data processing and analysis capabilities and can be implemented with simple parameter settings.

[0034] The control execution module includes a fuel control system, an air supply system, and an exhaust gas emission system. The output of the data processing module is connected to the fuel control system, air supply system, exhaust gas emission system, and / or temperature and humidity control system to control the fuel supply, air supply, exhaust gas emission, and / or temperature and humidity within the kiln, respectively. The fuel control system generally includes fuel control valves, which control the fuel supply through valve opening and closing status. The air supply system includes an air intake pipe and corresponding air intake valves, which control the air intake through valve opening and closing status and opening degree. The exhaust gas emission system includes an exhaust pipe and gas valves within the pipe, which control exhaust gas emission through valve control. The temperature within the kiln is regulated and controlled by controlling fuel consumption, and humidity is filtered through air filters, thereby improving temperature and humidity control within the kiln.

[0035] During operation, data such as oxygen (O2), carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx), sulfur dioxide (SO2), humidity, and temperature are detected and sent to the data processing module. After receiving the data, the data processing module can determine whether it is necessary to adjust the fuel supply, air supply, exhaust emissions, and / or the temperature and humidity inside the kiln according to a pre-calibrated map or pre-calibrated adjustment logic. The adjustment map or logic can be manually calibrated and integrated into the data processing module. The data processing module adjusts the fuel supply, air supply, exhaust emissions, and / or the temperature and humidity inside the kiln based on the collected data, thereby ensuring that the oxygen (O2), carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx), sulfur dioxide (SO2), humidity, and temperature are within the set range, thus ensuring the stable operation of the parameters inside the kiln.

[0036] Based on the changing trends and abnormal conditions of atmospheric parameters, formulate corresponding control logic or maps. For example:

[0037] (1) Adjust the fuel supply: Adjust the fuel supply according to the oxygen and carbon monoxide concentrations to maintain the combustion state in the kiln.

[0038] (2) Adjust the air intake: Adjust the intake of the combustion air according to the oxygen concentration to control the completeness of combustion.

[0039] (3) Adjust the amount of exhaust gas: Adjust the amount of exhaust gas according to the concentration of carbon dioxide and carbon monoxide in order to control the gas composition in the kiln.

[0040] The automatic control system executes control strategies and adjusts the kiln's operating parameters in real time. Specific actuators include:

[0041] (1) Fuel supply system: regulates the flow and pressure of fuel.

[0042] (2) Air supply system: regulates the flow and pressure of air.

[0043] (3) Exhaust gas emission system: regulates the amount of exhaust gas emitted and the pressure of the kiln.

[0044] In a preferred embodiment, the data processing module is connected to a large monitoring screen, which drives the screen to display the collected flue gas atmosphere parameter data. The monitoring screen, including an LED display, is located in the monitoring room and can display flue gas parameters and their changing trends in real time, facilitating data monitoring and processing by personnel. Through methods such as time series analysis, the changing trends of atmosphere parameters are identified and displayed simultaneously for easy viewing and monitoring by personnel.

[0045] To facilitate timely monitoring of the kiln's internal conditions, an alarm signal can be promptly issued when kiln parameters become abnormal. The data processing module connects to the alarm to trigger an alarm upon detecting abnormal flue gas parameters. Thresholds for various parameters within the kiln can be set; when a parameter exceeds the threshold range, an alarm signal is issued via the alarm for easy identification. The alarm can employ various methods such as audible and visual alarms or buzzers.

[0046] Obviously, the specific implementation of this invention is not limited to the above-described methods. Any non-substantial improvements made using the inventive concept and technical solution of this invention are within the protection scope of this invention.

Claims

1. An online detection and control system for flue gas atmosphere in a glass furnace, characterized in that: It includes an atmosphere detection system, a data acquisition module, a data processing module, and a control execution module; The atmosphere detection system detects the atmosphere parameters inside the kiln through sensors, and its output is connected to the data acquisition module. The data acquisition module is connected to the data processing module, and the data acquisition module samples the atmosphere parameters and sends them to the data processing module. The output of the data processing module is connected to the control execution module to drive the control execution module according to the atmosphere parameters. The control execution module controls the kiln operating parameters. The atmosphere detection system includes a sensor system installed inside the kiln. The sensor system includes oxygen concentration sensors, carbon dioxide concentration sensors, carbon monoxide concentration sensors, nitrogen oxide concentration sensors, sulfur dioxide concentration sensors, humidity sensors, and / or temperature sensors to collect data on oxygen concentration, carbon dioxide concentration, nitric oxide concentration, nitrogen oxide concentration, sulfur dioxide concentration, humidity, and temperature inside the kiln, respectively. The data acquisition module includes an analog-to-digital converter (ADC). The ADC samples the data according to a sampling frequency and transmits the data via wired or wireless means. The data is transmitted to a data processing module, which includes an industrial-grade PLC controller for processing the received kiln flue gas parameters and driving the corresponding control execution module. The control execution module includes a fuel control system, an air supply system, and an exhaust gas emission system. The output of the data processing module is connected to the fuel control system, air supply system, exhaust gas emission system, and / or temperature and humidity control system to control the kiln's fuel supply, air supply, exhaust gas emission, and / or temperature and humidity inside the kiln. The data processing module is connected to a monitoring screen, which drives the monitoring screen to display the collected flue gas atmosphere parameter data. The data processing module is also connected to an alarm to issue an alarm when abnormal flue gas parameters are detected.

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