Real-time monitoring and intelligent alarming system for temperature of furnace body of high-temperature smelting furnace

Abstract

The utility model discloses a furnace body temperature real-time monitoring and intelligent alarm system for a high-temperature smelting furnace, and the system achieves the real-time monitoring of the temperature of the furnace body of the high-temperature smelting furnace through the arrangement of an infrared thermal imaging monitor, a two-core computer shielding cable, a digital optical transceiver transmitting end, an optical fiber, a digital optical transceiver receiving end, and a DCS system. The whole system can realize all-weather real-time monitoring and visual temperature measurement of the temperature of the furnace body of the high-temperature smelting furnace, and two infrared thermal imaging monitors are arranged, so that the temperature of the bottom of the furnace body can be monitored in a full range, the temperature monitoring is more comprehensive, and the accuracy of a measurement result is higher; when the temperature of the furnace body is higher than a set value, the DCS system can realize temperature abnormity alarm, and related workers can simply, safely, intuitively and accurately search and judge the overheating fault of the high-temperature smelting furnace equipment through the DCS system operating platform and quickly take measures to prevent the furnace wall burning-through accident, so that the accident rate is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-temperature smelting furnace body temperature, and particularly relates to a high-temperature smelting furnace body temperature real-time monitoring and intelligent alarm system. Background Art

[0002] In existing technology, high-temperature smelting furnaces are key equipment in the smelting industry, and their operation requires close attention. However, prolonged operation can lead to erosion and shedding of internal refractory materials. This exposes steel plates to high temperatures, increasing the risk of burn-through and, consequently, the likelihood of burn-through accidents. Therefore, furnace temperature monitoring is essential.

[0003] Currently, the main method for monitoring furnace temperature in the industry is for relevant staff to use handheld infrared temperature guns to conduct regular inspections of the furnace temperature. This monitoring method has the following main problems:

[0004] 1. Manual inspection: The handheld temperature measurement method requires manual inspection, which results in a large workload and high intensity for the staff.

[0005] 2. Limited range: The handheld temperature measurement method is a single-point measurement. Single-point measurement is difficult to fully cover the entire bottom of the smelting furnace, which is prone to missed measurements and leads to low measurement accuracy.

[0006] 3. Low inspection frequency: Manual inspections cannot detect faults such as furnace overheating in a timely manner, which increases the incidence of safety hazards during the operation of the smelting furnace.

[0007] 4. Data consistency: Different people have different measurement habits and measure different points, which makes it difficult to maintain the consistency of the measurement data, resulting in large measurement errors.

[0008] A temperature measurement system is needed to solve the above technical problems. Summary of the Invention

[0009] The purpose of the utility model is to provide a real-time monitoring and intelligent alarm system for the temperature of a high-temperature smelting furnace body, which is used to solve the technical problems of low real-time measurement, low measurement result accuracy and high accident rate in the existing technology.

[0010] The technical solution of the utility model to solve the technical problem is:

[0011] A high-temperature smelting furnace body temperature real-time monitoring and intelligent alarm system includes an infrared thermal imaging monitoring device, a two-core computer shielded cable, a digital optical terminal transmitter, an optical fiber, a digital optical terminal receiver, and a DCS system; the infrared thermal imaging monitoring device is arranged on one side of the smelting furnace, the infrared thermal imaging monitoring device includes an alarm terminal, the alarm terminal is connected to the digital optical terminal transmitter via the two-core computer shielded cable; the digital optical terminal transmitter is connected to the digital optical terminal receiver via the optical fiber; the digital optical terminal receiver is connected to the DCS system via the two-core computer shielded cable.

[0012] The infrared thermal imaging monitoring device includes a first infrared thermal imaging monitoring device and a second infrared thermal imaging monitoring device. The first infrared thermal imaging monitoring device includes a first alarm terminal; the second infrared thermal imaging monitoring device includes a second alarm terminal.

[0013] The two-core computer shielded cable includes a first two-core computer shielded cable, a second two-core computer shielded cable, a third two-core computer shielded cable, and a fourth two-core computer shielded cable. The first two-core computer shielded cable is connected to the first alarm terminal and the digital optical terminal transmitter; the second two-core computer shielded cable is connected to the second alarm terminal and the digital optical terminal transmitter; the third two-core computer shielded cable and the fourth two-core computer shielded cable are connected to the digital optical terminal receiver and the DCS system, respectively.

[0014] The DCS system includes a DI card, which is connected to a receiving end of a digital optical terminal through a two-core computer shielded cable.

[0015] The infrared thermal imaging monitoring device adopts a dual-spectrum temperature measuring cylinder machine.

[0016] The dual-spectrum temperature measuring cylinder machine is installed on a bracket made of high-temperature resistant material.

[0017] The outer surfaces of the two-core computer shielded cables and optical fibers are wrapped with high-temperature resistant materials.

[0018] The beneficial effects of the utility model are as follows: by arranging an infrared thermal imaging monitoring device, a two-core computer shielded cable, a digital optical terminal transmitting end, an optical fiber, a digital optical terminal receiving end, and a DCS system, real-time monitoring of the temperature of the high-temperature smelting furnace body is achieved, so that the entire system can realize all-weather real-time monitoring and visual temperature measurement of the temperature of the high-temperature smelting furnace body. The arrangement of two infrared thermal imaging monitors enables full-range monitoring of the temperature of the bottom of the furnace body, making the temperature monitoring more comprehensive and thus making the accuracy of the measurement results higher; when the furnace body temperature is higher than the set value, the DCS system can realize temperature abnormality alarm, and relevant staff can use the DCS system operating console to simply, safely, intuitively and accurately find and judge the overheating fault of the high-temperature smelting furnace equipment, and quickly take measures to prevent the furnace wall from burning through accidents, thereby reducing the accident rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of a real-time monitoring and intelligent alarm system for the temperature of a high-temperature smelting furnace of the present invention. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] like Figure 1 As shown, the present invention includes a first infrared thermal imaging monitoring device 2, a second infrared thermal imaging monitoring device 3, a first two-core shielded computer cable 6, a second two-core shielded computer cable 7, a third two-core shielded computer cable 11, a fourth two-core shielded computer cable 12, a digital optical terminal transmitter 8, an optical fiber 9, a digital optical terminal receiver 10, and a DCS system 14. The first two-core shielded computer cable 6, the second two-core shielded computer cable 7, the third two-core shielded computer cable 11, the fourth two-core shielded computer cable 12, and the optical fiber 9 are all coated with high-temperature-resistant material to prevent damage to the cables from high-temperature fluids. The digital optical terminal and the DCS system are installed in the control room. The infrared thermal imaging monitoring device and the digital optical terminal are connected by dedicated cables that can withstand high temperatures and harsh environments, ensuring stable data transmission.

[0022] The first infrared thermal imaging monitoring device 2 and the second infrared thermal imaging monitoring device 3 are directly mounted on a bracket made of high-temperature resistant material and are located on one side of the smelting furnace. Preferably, they are located slightly above the bottom of the smelting furnace and are made of high-temperature resistant material to ensure stability in high-temperature environments. Preferably, the infrared thermal imaging monitoring device uses a dual-spectrum temperature measuring cylinder, which is configured with temperature alarm values ​​and divided into alarm zones. That is, one or more temperature thresholds are set based on the actual operation of the furnace and safety requirements. When the temperature at the bottom of the furnace monitored by the dual-spectrum temperature measuring cylinder exceeds these thresholds, the dual-spectrum temperature measuring cylinder triggers an alarm function, and the alarm signal is ultimately transmitted to the DCS system 14 via the digital optical terminal transmitter 8 and the digital optical terminal receiver 10, and the alarm is configured using the DI function block of the DCS system.

[0023] The specific alarm process is as follows:

[0024] When the temperature exceeds the set value, the relay at the first alarm terminal 4 of the first infrared thermal imaging monitoring device 2 or the second alarm terminal 5 of the second infrared thermal imaging monitoring device 3 activates and outputs an alarm signal with a digital value of 1. This alarm signal is transmitted via the first two-core shielded computer cable 6 or the second two-core shielded computer cable 7 to the digital optical terminal transmitter 8. The digital optical terminal transmitter 8 converts the alarm signal with a digital value of 1 into an optical signal, which is then transmitted via the optical fiber 9 to the digital optical terminal receiver 10. The digital optical terminal receiver 10 converts the optical signal into an electrical signal, which is then transmitted via the third two-core shielded computer cable 11 or the fourth two-core shielded computer cable 12 to the DI card 13 of the DCS system 14. Because the digital value corresponding to the electrical signal received by the DCS system is 1, the DI function block in the DCS system is triggered, thus triggering a configured alarm. The alarm can be in the form of a flashing alarm light and an audible alarm prompt, allowing relevant personnel to promptly detect the alarm information and immediately take appropriate emergency measures, effectively preventing accidents and avoiding loss of personnel and resources.

[0025] The above technical solution overcomes the shortcomings of the existing technology of using handheld thermometers to inspect the temperature of high-temperature smelting furnaces. It facilitates early detection of high-temperature areas, helps plan maintenance in advance, prevents equipment failures and safety hazards, and avoids production stoppages caused by sudden refractory material loss. It effectively enables fault analysis, remote inspections, and intelligent operation and maintenance, reducing labor intensity. By implementing real-time monitoring of the high-temperature smelting furnace's temperature and integrating a DCS system as part of the furnace's real-time temperature monitoring and intelligent alarm system, operators can more easily obtain real-time temperature data, gaining a comprehensive understanding of the furnace's status. This reduces the frequency and errors of manual inspections, improves the timeliness and accuracy of alarms, and provides strong data support for subsequent fault prediction and maintenance. Furthermore, the DCS system's modular design facilitates system expansion and maintenance. Adding new monitoring points requires simply adding the corresponding modules to the system, eliminating the need for large-scale system modifications, reducing maintenance costs and time.

[0026] Since its implementation, the high-temperature smelting furnace body temperature real-time monitoring and intelligent alarm system has repeatedly detected abnormally high temperatures in the melting and converting furnaces, prompting process personnel to take quick measures to prevent accidents. The infrared thermal imaging camera provides precise measurement results, enabling 24 / 7 real-time monitoring, visual temperature measurement, temperature anomaly alarms, and historical record inquiries. This makes it simple, safe, intuitive, and accurate to locate and diagnose equipment overheating faults.

[0027] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A high-temperature smelting furnace body temperature real-time monitoring and intelligent alarm system, characterized in that: It includes an infrared thermal imaging monitoring device, a two-core computer shielded cable, a digital optical terminal transmitter, an optical fiber, a digital optical terminal receiver, and a DCS system; the infrared thermal imaging monitoring device is arranged on one side of the smelting furnace, and the infrared thermal imaging monitoring device includes an alarm terminal, which is connected to the digital optical terminal transmitter through the two-core computer shielded cable; the digital optical terminal transmitter is connected to the digital optical terminal receiver through the optical fiber; the digital optical terminal receiver is connected to the DCS system through the two-core computer shielded cable.

2. The high-temperature smelting furnace body temperature real-time monitoring and intelligent alarm system according to claim 1 is characterized by: The infrared thermal imaging monitoring device comprises a first infrared thermal imaging monitoring device and a second infrared thermal imaging monitoring device. The first infrared thermal imaging monitoring device comprises a first alarm terminal; the second infrared thermal imaging monitoring device comprises a second alarm terminal.

3. The high-temperature smelting furnace body temperature real-time monitoring and intelligent alarm system according to claim 2 is characterized in that: The two-core computer shielded cable includes a first two-core computer shielded cable, a second two-core computer shielded cable, a third two-core computer shielded cable, and a fourth two-core computer shielded cable. The first two-core computer shielded cable is connected to a first alarm terminal and a digital optical terminal transmitter; the second two-core computer shielded cable is connected to a second alarm terminal and a digital optical terminal transmitter; the third two-core computer shielded cable and the fourth two-core computer shielded cable are connected to a digital optical terminal receiver and a DCS system, respectively.

4. The high-temperature smelting furnace body temperature real-time monitoring and intelligent alarm system according to claim 1 is characterized in that: The DCS system comprises a DI card, and the DI card is connected to a receiving end of a digital optical terminal through a two-core computer shielded cable.

5. The high-temperature smelting furnace body temperature real-time monitoring and intelligent alarm system according to claim 2 is characterized by: The infrared thermal imaging monitoring device adopts a dual-spectrum temperature measuring cylinder machine.

6. The high-temperature smelting furnace body temperature real-time monitoring and intelligent alarm system according to claim 5 is characterized by: The dual-spectrum temperature measuring cylinder machine is installed on a bracket made of high-temperature resistant material.

7. The high-temperature smelting furnace body temperature real-time monitoring and intelligent alarm system according to claim 1 is characterized by: The outer surfaces of the two-core computer shielded cables and optical fibers are wrapped with high temperature resistant materials.

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