一、保养方法 1. 燃煤热风炉成都收账给水必须经过合格成都找人公司处理，这是延长燃煤蒸汽热风炉寿命，保证运行安全成都收账重要事项。 2. 燃煤热风炉给水温度应尽量与炉体温度接近，最好在20℃以上。 3. 燃煤热风炉必须定期对低水位切断装置进行检查保养及清洗。水位控制器每月至少清洗一次，水位表每天至少冲洗一次。水位表冲洗应处于最高水位；冲洗后水位应不低于最低安全水位，如一次冲洗不净，可多次冲洗，但必须在最高水位时冲洗。
1. Maintenance method 1. The feed water of coal-fired hot blast stove must be treated qualified. This is an important matter to prolong the life of coal-fired steam hot blast stove and ensure its safe operation. 2. the feed water temperature of the coal fired hot blast stove should be close to the furnace body temperature, preferably at 20 degrees Celsius. 3. the coal-fired hot blast stove must regularly check and maintain and clean the low water level cut-off device. The water level controller is cleaned at least once a month, and the water level is washed at least once a day. The water level meter should be flushed at the highest level, and the water level after flushing should not be lower than the lowest safe level. If the water level is not clean at one time, it can be flushed several times, but it must be flushed at the highest level.
4. Coal-fired hot blast stoves need to be operated regularly to discharge pollutants at least once a day (every shift). After discharging pollutants, it is necessary to check whether the discharge valve leaks due to the influence of pollutants; if so, it must be eliminated.
5. When the coal-fired hot blast stove shuts down without maintaining the steam pressure, the steam space of the hot blast stove will generate negative pressure and retain air. Therefore, the main steam valve should be opened first when the coal-fired hot blast stove is re-ignited.
6. Ash accumulation in threaded flue gas tubes of coal-fired hot-blast stoves will lead to an increase in exhaust gas temperature, thus reducing the efficiency of hot-blast stoves and increasing fuel consumption. Therefore, the front and rear door covers should be opened regularly to brush or blow off the ash accumulation in flue gas tubes.
7. The safety valve of coal-fired and gas-fired hot-blast stove will not be opened in the normal and automatic operation of the hot-blast stove, but it is a necessary accessory to ensure safety and should be checked every hour.
Two. Shutdown maintenance and anticorrosion
1. after the blast furnace is stopped, the coal fired hot blast stove must be maintained to prevent corrosion in the pot.
2. short term maintenance of coal-fired hot blast stove. The wet maintenance method can be adopted, that is, after the furnace is stopped, the furnace water will be filled up and the air will be discharged completely.
3. long term maintenance of coal-fired hot blast stove. Dry maintenance method can be adopted, that is, after stopping the furnace, the furnace water is discharged, the lower hand hole is opened, the water accumulated in the pot is blown dry, and drier is put into the pot through the lower hand hole, and it should be replaced regularly. It can be checked and replaced once a month at the beginning, and once in three months later. However, it should be noted that all the desiccant must be removed before the hot stove is activated.
Three. Surveillance and maintenance
1. During the operation of the coal-fired hot blast stove, the equipment is checked every 1 hour, with emphasis on the operation of the safety components and rotating equipment of the hot blast stove.
2. The inspection, test and periodic operation of coal-fired hot blast stove equipment shall be specified and loaded on site in the form of icons.
3. the operators of coal fired hot blast stove fill in the records in time according to the inspection conditions.
4. the coal burning hot stove often keeps the scene clean, and achieves no debris, no ash accumulation, no water accumulation and no grease stain.
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