How should a gas stove be operated to function properly and reduce coal consumption?
Thread Content
One of our company’s mixed gas generators with a diameter of 2.6 meters is consuming a high amount of coal during operation recently. When the inspection hole was opened for observation, it was found that the very top part of the furnace was usually bright red, and sometimes flames would shoot out; this clearly indicated that something was not normal. However, the operators said that the quality of the coal was poor, and adding too much coal might prevent the fire from starting. Is that the case? I would like to seek advice from experts. Thank you!
This type of furnace condition is characterized by an upward movement of the flame layer, which may be related to the quality of the coal. Under normal operating conditions, it is abnormal for the entire furnace surface to turn red. I’m not sure what type of coal you are using; if the ash content is too high, the flame layer will move upward excessively, and in such cases it’s necessary to increase the number of furnace grills. If the ash content isn’t high but the flame layer still moves upward, then it’s a control issue, and it’s possible to increase the downward airflow appropriately. If only certain areas of the furnace turn red, it indicates that the flame layer has shifted, and it’s possible that the furnace has started to adhere to the walls inside the water jacket. In such cases, the furnace can only be removed. Based on the symptoms you described, it seems to be the latter case.
What does it mean by increasing the furnace rods on the third floor? Increase the ash output? “The furnace has appeared mounted on the wall above the water jacket; such a furnace can only be removed. I don’t understand what you mean – please feel free to explain!
Is the volatile content of the coal you’re burning too high? This is the phenomenon that occurs when there’s a flame. The steam can be increased first to spread out the flame layer, followed by an increase in air supply.
This situation is usually caused by poor coal quality; as the combustion layer moves upward, the quality of the gas produced becomes poor, which affects the energy consumption of the product. From what you say, the increase in coal consumption is a sign indicating that the quality of the gas is poor. It is necessary to adjust the thickness of each layer; some manufacturers also use thin coal layers in their operations, but this is generally done only for specific types of coal – such as Huainan coal – when the quality of the coal is poor. Local manufacturers use this method for gas stoves, and although it results in higher consumption, the low cost of local coal makes it overall cost-effective. If the quality of the coal is not exceptional, the thickness of the coal seam should be adjusted to the specified range. If the ash content is too high, it indicates that the thickness of the ash layer might be large, which could lead to uneven air distribution inside the furnace and result in poor quality. As a first step, one can try adjusting this by increasing the amount of ash discharged.