Advantages of clay red hollow bricks in modern building applications
When using tunnel kiln to burn bricks, various parameters used in production should be determined according to the basic properties of raw materials.
The firing output of the kiln is that the performance indicators of the fired product meet the requirements of the national standard, not just how much is fired, and the output of the kiln is how much. Some kiln-fired products are only 3mm~4mm on the surface, but the inside is not completely fired. Such products that do not meet the requirements of the national standard cannot be used as the basis for calculating the output of the tunnel kiln.
The length, width and height of the kiln are calculated according to the output of the kiln. When calculating the length, width and height of the kiln, the heating and cooling rates of the raw materials, the firing time of the raw materials, the highest firing temperature and the firing temperature range should be considered. And other factors.
The tunnel kiln should also have a complete working system, and various parameters of the working system must be calculated in detail, so as to ensure the normal operation of the tunnel kiln, so as to achieve the purpose of correct construction and correct use of the tunnel kiln, and to ensure that the tunnel kiln burns In the process of reaching the target and reaching the production.
2. Reasonable layout of the tunnel kiln system to make the firing stable.
According to the definition of tunnel kiln, tunnel kiln should be equipped with ventilation system, fuel combustion system, vehicle entry system, and sealing system. These subsystems constitute the working system of tunnel kiln. The close cooperation of each system can make the tunnel kiln work normally.
According to the requirements of the firing atmosphere in the kiln, the number and position of the fans used on the kiln are equipped, the air pressure of the fans is determined according to the shape of the fired products and the density of the kiln, and the ventilation volume of the fans is determined according to the output.
According to what kind of fuel is used, the method of fuel combustion system, what kind of combustion equipment to use, and the arrangement position and quantity of combustion equipment should make the temperature in the kiln as uniform as possible. The main contents included in the entry system are entry mode and entry time interval.
The sealing system includes the sealing between the kiln car and the kiln body, the sealing between the kiln door and the kiln body, the sealing between the pipeline and the kiln body, and the sealing between the kiln cars. It is isolated to form a good firing space inside the tunnel kiln, so that the semi-finished product can be fired into the finished product inside the kiln.
The division of the three zones in the firing process of the tunnel kiln should be carried out according to the basic properties of the raw materials, and should not be arbitrarily divided, so as to ensure the normal production and stable operation of the tunnel kiln.