换代产品—HNN型实体热电偶是热电偶生产技术的突破,其中HNN-1150型实体热电偶可以真正实现廉金属热电偶长期(有效使用1000小时以上)使用温度达到1300℃。 The successful replacement of the hot-wire thermocouple developed by our factory-HNN type solid thermocouple is a breakthrough in thermocouple production technology, of which HNN-1150 type solid thermocouple can truly achieve the long-term (effective use of more than 1000 hours) low-temperature thermocouples Reached 1300 ° C. As the flame type thermocouple is a new type of solid thermocouple, it has a long service life and excellent stability. It will have a very wide range of applications in the temperature range of 1100-1300 ° C and has been put on the market in batches.
产品技术说明HNN-1150型实体N型热电偶具有优异的稳定性、可靠性和较长的使用寿命，是现阶段较理想的燃气阳极焙烧炉燃烧自动控制系统用热电偶。 HOT-1150 solid N-type thermocouple has excellent stability, reliability and long service life. It is an ideal thermocouple for automatic control system of combustion of gas anode baking furnace at this stage. In the specific use process, the following matters should be paid attention to: 1. This thermocouple is an N-division, class II tolerance tolerance temperature measurement product. 2. Long-term use within the range of 0-1300 ℃, the limit use temperature: 1340 ℃. 3. Thermocouple length: 1200mm, insertion depth: 1150mm. Outer diameter:? 6mm or more. 4. Handle with care during transportation, installation, and dismantling. Do not drop by force or force straightening. 5. During calibration, the hot end of the standard thermocouple is relatively backward by 20mm. 6. Thermocouples are temperature measurement products with accuracy grade requirements. Especially in the range of the process temperature use section, the temperature measurement accuracy must be achieved before it can be used. 7. The accuracy of the thermocouple will change after a period of actual use. It is recommended that the thermocouple be spot-checked every 2-3 months. If the accuracy is not reached, it should be replaced. 8. It is recommended not to use it above 1300 ℃. If the short-term temperature exceeds 1340 ℃ due to the failure of automatic control, the entire thermocouple must be replaced even if it is not melted and disconnected. 9. When the thermocouple is nearing its service life, there will be problems such as signal disconnection, large fluctuations in the signal, or particularly low display temperature. At this time, the thermocouple should be replaced as a whole. 10. Due to the combustion system with automatic flame temperature control, it is not that the temperature on the display screens are almost the same, it is considered that the thermocouple is no problem. If the thermocouples are not regularly spot-checked, the actual temperature in the fire tunnel may be several dozen degrees higher or lower than the displayed temperature. 11. The thermocouple can be used to measure the temperature in the fire tunnel, and it can also be used to measure the temperature of the carbon block in the bin. When used for the temperature measurement of the carbon block of the bin, the model: TQW-1550-6KNG, the length: 1150-1550m is optional. 12. Can be used in cathode baking furnace at 1280-1320 ℃.
升温方法改善焦炉作业状况（日）月原预二，笠岗玄树１前言随着焦炉炉体的老化，水岛制铁所的卡尔斯蒂尔式焦炉燃烧室的机能也随之减弱，特别因炉端燃烧部位的耐火砖损伤、堵塞，导致了窑口部焦炭干熘不好，使焦炭质量下降。 Improving the operating conditions of coke ovens by using the method of increasing the temperature of the thermocouple at the end of the coke oven furnace The function of the furnace combustion chamber is also weakened, especially due to the damage and blockage of the refractory bricks at the combustion end of the furnace, which leads to poor coke drying at the kiln mouth, which reduces the quality of coke. For this purpose, a new type of burner capable of supplying gas and air according to the combustion conditions of the furnace-side fire tunnel was developed and newly installed. Here we will report the equipment outline and the effect of improving the working conditions after adoption. 2 Burner overview 2.1 Burner design In order to prevent the burner from being heated by the refractory bricks on the inner wall of the fire tunnel, a flame diffusion burner was used. In order to spread the flame, high temperature resistant metal is used at the tip of the nozzle, and the outer layer of the burner is protected by ceramics. When burning, the combustion air is passed, and when not burning, the cooling air is passed to keep the cooling state. There is also a thermocouple in the burner for temperature monitoring to ensure the safety of the burner. The appearance of the burner is summarized in Figure 2.2 Fuel, Air Supply Pipeline Fuel, Air Supply Pipeline. Burners are set at the ends of the machine and the coking side respectively. The fuel is coke oven gas. To maintain the pressure in the pipeline, it is supplied to the pipeline after pressurization. Air is supplied by a fan. In addition, a combustion air is provided on the combustion side, and a cooling air flow control device is provided on the exhaust side to control the flow rate.