Once processed the steps of the preparation process kiln operation, we conducted restart furnace. Depending on which type of furnace combustion chamber is equipped with installation, the boot process incinerators must follow operating procedures nh ng startup certain incinerators.
During the furnace, air valves open to exhaust out. When the steam oven, it appears e air valves closed, the increased combustion.
When the boiler pressure reaches 1, 2 kg cm2, proceed to check the status of valves, hoses and pressure gauge, to observe the work of them.
When the pressure of the furnace reached a maximum working pressure of PLV, feed water pump to pump water into the oven's average bar hoses, if the pumping operation in MAN mode.
Raising the pressure of the furnace up pressure operational capacity of the safety valve e is governed by rules. The safety valve must operate to blow off steam and pressure out of steam in the boiler must be reduced. If the safety valve does not work, conduct emergency air supply fan and turn off the feed system for the boiler, the system tested safety valve and signal transmission systems for boiler pressure. This is important work needs to be checked and monitored carefully.
The work boot furnace was ended when the oven e put pressure on the working pressure and check the operation of the furnace completed.
In process steam, boiler to ensure good operation, good combustion mode, that is to ensure complete combustion of fuel, all the equipment of the boiler to operate in a normal manner in accordance with design requirements . Any problems though most nh must also be examined promptly carved ph c, can even proceed to stop the oven when the problem is fixed ph c.
During operation of the furnace, must regularly track check all parts, especially the water supply system for the furnace and fuel supply process, combustion of the stove. When the furnace pressure nearly equal to the maximum working pressure, the PLV steam preparation. Before the steam, the water level in the oven at medium level of fire hoses and have a stable mode. When steam, open slowly (1 rpm), the main steam valve to a steam heating nh steam lines and discharged water in steam lines for a period of 10, 15 minutes. During that time, the phenomenon observed gi n bloom tube and pipe supports. If you see normally, the main steam valve open at full steam to go. The valve must slowly, opening all the way down, then rotate backwards halfway around the steam valves. During operation of the furnace, right between the average level in the oven, the oven should not work for long in the lowest and highest of hydraulic pipe. Boilers supplied with water by automated systems (with operating procedures km depending on the type of water supply system that is equipped with a furnace installation). the quality of water supplied to the furnace to ensure the following requirements : Hardness mgdl full 0.5 liters. the pH = 7, 10.5 mgdl content of oxygen 0.1 liters. the discharge of dirty boiler k to be done by the boiler blowdown valve Depending on the mode water level for determining the number of times that the furnace exhaust and dirt in 1 ca. Countries increasingly hard levels, the higher the alkalinity discharge times as much. t least 1 case to discharge dirty 2 times for 2, 3 recovered, each between 10 and 15 seconds. Before discharging the dirty, check the water level in the oven above the average of 25 countries, 50 mm of hydraulic tube light is just. Ng hydro-washing must be at least 2 times in 1 case, the siphon tube manometer through washing 2 times in 1 ca. Safety valves are checked 1 time in 1 ca.
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