Daily Topic (July 5)

It is primarily based on the following parameters and phenomena: 1. The lower calorific value of the coal fed into the furnace. 2. The amount of load transferred. 3. The brightness of the flame inside the furnace (white flame), with no deviation at the center of the flame. 4. The bottom temperature of the furnace should be maintained to ensure smooth slag flow, with no floating or accumulated ash. White slag, yellow slag, and iron precipitation. 5. The oxygen content at the inlet of the high-temperature economizer is 5–6%. 6. The combustible content of fly ash should be between 2–3%. 7. The flue gas emitted from the chimney should be light gray. When coal powder burns in the furnace, the flame should be stable and not touch the surrounding water-cooled walls ； It has a bright white flame that fills the combustion chamber evenly. The flame center should be at the center of the furnace, at a height of 1.5 to 2.0 meters above the slag pool. The ignition point of the coal powder is 0.2 to 0.3 meters from the nozzle, with a maximum distance of no more than 0.5 meters. 8. Is the slag surface clean and shiny? The granulated slag consists of fine particles ranging in size from 3 to 6 mm, with a brownish-black, translucent glass-like appearance; no abnormal slag is present on the surface of the granulated slag. Since the entire combustion process is dynamic, the data reflected by the oxygen level can only serve as an important reference throughout the combustion.

Temperature, combustion flame, pressure, coal feed rate, amount of steam generated, etc

Steam temperature, steam pressure, load, fuel quantity, excess air volume

Reply to 1# zgj2405: temperature, combustion flame, pressure, amount of steam generated, water consumption, etc

Reply to 1# zgj2405: The main criteria are based on the following parameters and phenomena: 1. The lower heating value of the coal fed into the furnace. 2. The amount of load transferred. 3. The brightness of the flame inside the furnace (white flame), with no deviation at the center of the flame. 4. The bottom temperature of the furnace should be maintained to ensure smooth slag flow, with no floating or accumulated ash. White slag, yellow slag, and iron precipitation. 5. The oxygen content at the inlet of the high-temperature economizer is 5–6%. 6. The combustible content of fly ash should be between 2–3%. 7. The flue gas emitted from the chimney should be light gray. When coal powder burns in the furnace, the flame should be stable and not touch the surrounding water-cooled walls ； It has a bright white flame that fills the combustion chamber evenly. The flame center should be at the center of the furnace, at a height of 1.5 to 2.0 meters above the slag pool. The ignition point of the coal powder is 0.2 to 0.3 meters from the nozzle, with a maximum distance of no more than 0.5 meters. 8. Is the slag surface clean and shiny? The granulated slag consists of fine particles ranging in size from 3 to 6 mm, with a brownish-black, translucent glass-like appearance; no abnormal slag is present on the surface of the granulated slag. Since the entire combustion process is dynamic, the data reflected by the oxygen level can only serve as an important reference throughout the combustion.

It is primarily based on the following parameters and phenomena: 1. The lower calorific value of the coal fed into the furnace. 2. The amount of load transferred. 3. The brightness of the flame inside the furnace (white flame), with no deviation at the center of the flame. 4. The bottom temperature of the furnace should be maintained to ensure smooth slag flow, with no floating or accumulated ash. White slag, yellow slag, and iron precipitation. 5. The oxygen content at the inlet of the high-temperature economizer is 5–6%. 6. The combustible content of fly ash should be between 2–3%. 7. The flue gas emitted from the chimney should be light gray. When coal powder burns in the furnace, the flame should be stable and not touch the surrounding water-cooled walls ； It has a bright white flame that fills the combustion chamber evenly. The flame center should be at the center of the furnace, at a height of 1.5 to 2.0 meters above the slag pool. The ignition point of the coal powder is 0.2 to 0.3 meters from the nozzle, with a maximum distance of no more than 0.5 meters. 8. Is the slag surface clean and shiny? The granulated slag consists of fine particles ranging in size from 3 to 6 mm, with a brownish-black, translucent glass-like appearance; no abnormal slag is present on the surface of the granulated slag.

It is primarily based on the following parameters and phenomena: 1. The lower calorific value of the coal fed into the furnace. 2. The amount of load transferred. 3. The brightness of the flame inside the furnace (white flame), with no deviation at the center of the flame. 4. The bottom temperature of the furnace should be maintained to ensure smooth slag flow, with no floating or accumulated ash. White slag, yellow slag, and iron precipitation. 5. The oxygen content at the inlet of the high-temperature economizer is 5–6%. 6. The combustible content of fly ash should be between 2–3%. 7. The flue gas emitted from the chimney should be light gray. When coal powder burns in the furnace, the flame should be stable and not touch the surrounding water-cooled walls ； It has a bright white flame that fills the combustion chamber evenly. The flame center should be at the center of the furnace, at a height of 1.5 to 2.0 meters above the slag pool. The ignition point of the coal powder is 0.2 to 0.3 meters from the nozzle, with a maximum distance of no more than 0.5 meters. 8. Is the slag surface clean and shiny? The granulated slag consists of fine particles ranging in size from 3 to 6 mm, with a brownish-black, translucent glass-like appearance; no abnormal slag is present on the surface of the granulated slag.

Reply to 1# zgj2405: 1. The lower heating value of the coal fed into the furnace. 2. The amount of load transferred. 3. The brightness of the flame inside the furnace (white flame), with no deviation at the center of the flame. 4. The bottom temperature of the furnace should be maintained to ensure smooth slag flow, with no floating or accumulated ash. White slag, yellow slag, and iron precipitation. 5. The oxygen content at the inlet of the high-temperature economizer is 5–6%. 6. The combustible content of fly ash should be between 2–3%. 7. The flue gas emitted from the chimney should be light gray. When coal powder burns in the furnace, the flame should be stable and not touch the surrounding water-cooled walls ； It has a bright white flame that fills the combustion chamber evenly. The flame center should be at the center of the furnace, at a height of 1.5 to 2.0 meters above the slag pool. The ignition point of the coal powder is 0.2 to 0.3 meters from the nozzle, with a maximum distance of no more than 0.5 meters. 8. Is the slag surface clean and shiny? The granulated slag consists of fine particles ranging in size from 3 to 6 mm, with a brownish-black, translucent glass-like appearance; no abnormal slag is present on the surface of the granulated slag. Since the entire combustion process is dynamic, the data reflected by the oxygen level can only serve as an important reference throughout the combustion.

It is primarily based on the following parameters and phenomena: 1. The lower calorific value of the coal fed into the furnace. 2. The amount of load transferred. 3. The brightness of the flame inside the furnace (white flame), with no deviation at the center of the flame. 4. The bottom temperature of the furnace should be maintained to ensure smooth slag flow, with no floating or accumulated ash. White slag, yellow slag, and iron precipitation. 5. The oxygen content at the inlet of the high-temperature economizer is 5–6%. 6. The combustible content of fly ash should be between 2–3%. 7. The flue gas emitted from the chimney should be light gray. When coal powder burns in the furnace, the flame should be stable and not touch the surrounding water-cooled walls ； It has a bright white flame that fills the combustion chamber evenly. The flame center should be at the center of the furnace, at a height of 1.5 to 2.0 meters above the slag pool. The ignition point of the coal powder is 0.2 to 0.3 meters from the nozzle, with a maximum distance of no more than 0.5 meters. 8. Is the slag surface clean and shiny? The granulated slag consists of fine particles ranging in size from 3 to 6 mm, with a brownish-black, translucent glass-like appearance; no abnormal slag is present on the surface of the granulated slag. Since the entire combustion process is dynamic, the data reflected by the oxygen level can only serve as an important reference throughout the combustion.