The second type is a high-temperature inverted flame kiln.
The flame kilns are mainly based on coal and oil, which are burned to gain energy. Its structure consists of three main kiln bodies (round and rectangular kilns), combustion equipment and ventilation equipment. Add the coal to the grate of the combustion chamber, and the primary air passes through the grate from the ash pit, and burns through the coal seam and coal. The combustion products are sprayed to the kiln top from the fire injection vent surrounded by the retaining wall and the kiln wall, and then returned to the bottom of the kiln through the internal products of the kiln, and discharged from the fire suction hole, the flue and the main flue. When the flame flows through the product, its heat is transmitted to the product by convection and radiation. Because the flame in the kiln flows backwards from the top to the bottom of the kiln, so it is called the inverted flame kiln.
The third type is a shuttle kiln.
Swimming kiln is a kind of kiln car type inverted flame kiln, and its structure is basically the same as the traditional rectangular inverted flame kiln. The burner is installed on the walls of the two kilns, and one or several layers of burner are set depending on the height of the kiln. Kiln bottom with refractory masonry on the kiln car steel structure, namely the kiln bottom fire hole, a flue in the kiln car, and make the flue of the kiln wall and the kiln car flue connection, using the winch or his traction mechanical equipment, make the loading products of the kiln car moving on the track at the bottom of the kiln room, kiln car and kiln car and between the kiln wall with winding and sand seal. The number of vehicles in the kiln room depends on the volume of the kiln, with small volume spindle kiln capacity of one or two, large volume shuttle kiln can discharge two kiln cars in the width direction, and four or more kiln cars in the length direction. The shuttle kiln can be set at both ends of the length of the kiln, the kiln car in the kiln in the end of the kiln in the other end of the kiln into the kiln room; also in the same side of the same kiln door, sintering cooling, moving back and forth in the kiln like a drawer in the desk, so it is also called the drawer kiln. Because the products are outside the kiln loading, unloading kiln truck, and easy to achieve mechanized operation. Therefore, compared with the traditional inverted flame kiln kiln loading and unloading products, it greatly improves the working conditions and reduces the labor intensity.