It can be divided into ceramic kilns, cement kilns, glass kilns, enamel kilns, etc. The former can be divided into continuous kiln (tunnel kiln), semi continuous kiln and intermittent kiln according to the operation method. 1. According to pyrogen, it can be divided into flame kiln and electric kiln. 2. It can be divided into open flame kiln, flameproof kiln and semi flameproof kiln according to the heat source facing the green body. 3. It can be divided into kiln car kiln, pusher kiln, roller hearth kiln (roller hearth kiln), conveyor belt kiln, walking beam kiln, air cushion kiln, etc. 4. According to the number of channels, it can be divided into single channel kiln, double channel kiln and multi-channel kiln. 5. Generally, the fuels of large kilns are mostly heavy oil, light diesel oil or gas and natural gas. Firewood kiln: It is the inheritance of ancient kiln industry to use firewood as fuel. All kinds of kilns in the form of dragon kiln, steamed bread kiln, gourd kiln, etc. belong to the category of firewood kiln. Because its burning requires wood, which is not conducive to the protection of environmental resources, it is rarely seen except in some traditional ceramic producing areas. Coal kiln: It is an industrial kiln using coal as fuel. It was once used in large quantities. Later, due to high energy consumption and heavy pollution, it abandoned or improved to use gas, heavy oil and light diesel as fuel. Electric kiln: electric furnace wire, silicon carbide band or molybdenum disilicide are mostly used as heating components to burn in oxidizing atmosphere based on the principles of electric energy radiation and heat conduction. Electronic program control, simple operation, good safety performance, suitable for all kinds of workplaces, kungfu small porcelain electric kiln is a necessary firing kiln for many ceramic studios. Gas kiln: It uses liquefied gas, coal gas or natural gas as fuel, has strong firepower and low pollution, and is suitable for firing in different firing atmospheres. It is the most widely used kiln nowadays.
The kiln is usually composed of four parts: kiln chamber, combustion equipment, ventilation equipment and conveying equipment. Most electric kilns use electric furnace wires, silicon carbide rods or molybdenum disilicide as heating elements. The utility model has simple structure and convenient operation. In addition, there are many kinds of atmosphere kilns, electric porcelain kilns, etc. Whether the kiln structure is reasonable and the type selection is correct is directly related to the product quality, output and energy consumption, and is the key equipment in ceramic production.