In this paper, reasonable use of heat calculation formula, volume calculation formula, material quantity calculation formula, etc., to calculate the quantitative variable in the sulfur combustion process of air volume and furnace gas temperature value. Combining S (orthorhombic) +O₂ (g) =SO₂ (g) energy release and absorption in chemical reactions, the energy transformation of different substances is discussed. The morphology of sulfur at different temperatures and its specific heat capacity constant are the key factors in calculation. The International System of Units (SI) is used in all calculations in this paper.

1. Known amount of sulfur and SO₂ Gas concentration Air volume and furnace temperature

We assume that the total mass of sulfur is 1.6× 10⁴ Kg, the total heat of sulfur combustion was obtained by calculating the total heat of sulfur combustion by calculating the amount of its substance with a fixed mass. The molar mass of sulfur is obtained by looking up the table. The molar mass and the relative atomic mass are equal in value but have different units. The relative atomic mass is a unitless ratio. According to the heat of combustion of 1mol of sulfur is 296 KJ/mol, the total heat of combustion of sulfur is obtained. (Heat loss meter 1%, absolute value of combustion heat, ignoring pressure changes)

n= the amount of a substance, is a physical quantity that indicates the number of particles contained in a substance, the symbol is n, the unit is mol.

m= the mass of the substance, that is, the inherent properties of the substance, which do not change with the shape and spatial geographical location, is one of the basic properties of the object, usually expressed by m, in the international system of units, the basic unit of mass is the kilogram, the symbol is Kg

M= molar mass, representing the mass of a substance per unit of substance, symbol M, unit g/mol.

Δ H= the change in heat in a combustion reaction, usually measured in kilojoules per mole (kJ/mol), represents the amount of heat released when a mole of substance is completely burned.

Heat refers to the energy transferred by the system due to the temperature difference during the thermodynamic process. The sulfur combustion reaction involves multiple heat transfer processes under different temperature conditions. According to the table, the specific heat capacity of sulfur at 140℃ is 0.73173 kJ/kg&middot. K, according to the known parameters, the total enthalpy heat of sulfur at 140℃ is calculated using the heat formula Q=cm△t. (Ignore pressure changes)

Q= Heat absorbed or emitted, the unit is joule for short, the symbol is J.

m= mass of substance, unit is kilogram, symbol Kg.

c= specific heat capacity of a substance, unit Joule Kelvin per kilogram, symbol J/kg· K.

Δ t = change in temperature in degrees Celsius, symbol ° C.

The density formula can be used to calculate the air qualityAccording to the known quantity of air density, oxygen accounts for about 20.98% of the total volume of air and other quantitative relations are derived. (Input SO₂ Gas concentration meter 10%)

m= represents the mass of a substance in kilograms, symbol Kg.

V= indicates the volume of a substance, the unit is cubic meters, symbol m³.

ρ = Indicates the density of a substance, the unit is Kg per cubic meter, symbol Kg/m³.

The heat formula is used to calculate the total heat of the air Q=cm△t, and the specific heat capacity of the air can be obtained by looking up the table. (Thermometer 80℃, ignoring pressure changes)

The calculation of furnace temperature is based on the formula of heat calculationAccording to the data obtained above, several data such as the total heat of combustion of sulfur, the total enthalpy heat of sulfur, the total heat of air, the specific heat capacity of air and air quality are mixed. (Ignore pressure changes)

2. Conclusion

In the actual industrial production, sulfur and oxygen combustion will emit a lot of heat, in order to prevent insufficient sulfur combustion and sublimation of sulfur, so often take air excess combustion method. However, the air in the furnace is too weak, and sulfur combustion may generate SO₂, in addition to SO₃. Sulfur trioxide will not corrode the boiler under normal production, once the system is not normal, the temperature in the boiler is high and low and the pressure of the boiler is high and low, at this time, sulfur trioxide is easy to form condensation on the wall of the boiler, that is, sulfuric acid is formed on the surface of the boiler tube, which is easy to corrode the boiler. Therefore, in the process of sulfur combustion in sulfur burning furnace, it is necessary to pay attention to the effect of sulfur atomization, appropriate amount of sulfur and air, and determine the appropriate oxygen sulfur ratio are good decisions to solve the generation of sublimed sulfur.