Belt furnace is a continuous furnace, powered by a metal belt. Depending on the temperature, the metal belt can be made of different types of heat-resistant stainless steel. The belt is supported by upper and lower idlers, with bearings at both ends for rotation. It is mainly used for drying and calcining catalysts, molecular sieves, chemical powder materials, and molded products.
The heating methods can be divided into flame heating and electric heating. Flame heating further includes open flame heating (where materials can come into contact with flue gas) and enclosed flame heating (where materials cannot come into contact with flue gas). The heating energy sources include electricity, natural gas, blast furnace gas, coke oven gas, or diesel.
Due to the limitations of metal materials, the general conveyor belt kiln operates at temperatures below 950 ℃. Atmosphere can be introduced upon request. The conveyor belts come in two types: balanced crank type (large-eye belt, powdery materials need to be loaded into crucibles and then placed on the belt) and herringbone densely woven belt (mesh size ≤ 1mm, granular materials, strip materials, and products larger than 1mm can be placed directly on the belt).
The length of a mesh belt kiln typically ranges from 10 to 50 meters, with a mesh width of 200 to 2000 mm. Heating energy options include electricity, natural gas, blast furnace gas, coke oven gas, or diesel.
