As a heating device, the use of hot air stove is also cyclical. Every year in the cold season, when the equipment is fully functional, it will go to sleep when the chill goes away. So what should we pay attention to when we start using it every year? 1. When we use it for the first time after each dormancy, we should take high temperature protection measures for high temperature areas such as combustion chamber and purification chamber, mainly refractory bricks and refractory mud. In the initial use, the furnace temperature should not rise too high or too fast to avoid cracks or even cracks on the surface of refractories.
2. there is a difference between the use of coal for the first time and the furnace that has been used for a period of time. For the first time, it is better to use some good quality coal. Not only to improve the efficiency of coal combustion, it is more important to choose the right coal. After calculation, we found that the coal with a diameter of 50-60mm is the best to burn in a coal-fired hot blast stove. For common fixed grate stoves, all kinds of bituminous coal, anthracite and lignite are available.
3. For the treatment of flue gas, if the flue gas is not used for a long time, there may be some problems in the treatment of flue gas. The general recommendation is wet desulphurization, which is also the mainstream method in the industry. In addition, we use the water film dust collector for flue gas dedusting.
Difference between pulverized coal hot blast stove and structure of fuel gas hot blast stove
, furnace heating surface is also very different, because of the complexity, in this is not detailed explanation.
 The burner of the oil-fired hot blast stove must have an oil physicochemical device, while the burner of the gas-fired hot blast stove does not need a physicochemical device.
 Oil-fired hot-blast stove uses burner. In coal-fired hot-blast stove, there are fixed grate, pulverized coal hot-blast stove and fluidized bed furnace combustion methods.
 and oil fired hot blast stoves generally do not burn out, and the exhaust gas is discharged through the chimney. Generally, there are ash handling facilities such as ash hopper and slag remover.
 There is not much difference between oil-fired hot blast stove and gas-fired hot blast stove in terms of body structure, but because of the different calorific value of fuel, the heating surface has been adjusted accordingly. That is to say, the radiation heating area of oil-fired hot blast stove is larger, while that of pulverized coal hot blast stove is larger.
 Oil-fired hot blast stove must be equipped with a more complex oil supply system (especially when burning heavy oil and residue), such as fuel tank, oil pump, filter heating pipeline, etc. It must occupy a certain space, while gas-fired hot blast stove does not need to be equipped with gas storage device. It is only necessary to connect the gas pipeline to the gas supply network. Of course, pressure regulating devices, solenoid valves, buffer valves and other accessories should be installed on the pipeline to ensure the safe operation of the hot blast stove.
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