Industrial ovens and different types of ovens used for heat treatment
What is an industrial oven? Industrial ovens are often described as heated chambers used for diverse heat treatment processes such as curing, drying or baking. They are designed to operate with raw materials in solid or liquid state aggregation at various configurations, for large or small volume applications. The industries that often benefit from industrial ovens are electronics industry, food production, tyre industry, chemical industry, glass industry and metallurgical industries. Different types of ovens perform various processes, but they all work with remarkably high temperatures in different heating zones.
Classification of industrial ovens based on heat treatment
Industrial ovens are classified based on diverse standards and additional classifications such as heat transfer, reuse of the heat, loading of the oven, etc. What are the different types of ovens? How are they classified? The principal standards of classifications are:
- Heat source
The heat source is telling us whether the oven is using coal, electricity, gas, mazut or has no external heat source
- Technological purpose
Based on technological purpose, the ovens can be used for drying, melting, sintering, heating and heat treatment processes
- How the heat from gas emissions is utilised
The oven can utilise the heat from gas emissions regeneratively, without heat exchangers or in a recuperative way
- Chamber design
Ovens can have different chamber designs such as rotary, cave, line, tunnel and chamber
Different types of industrial ovens - Below 600°C and above 1000˚C
Our company Procesni inžiniring is a leading industrial ovens manufacturer. We specialise in solving demanding and complex challenges, and our industrial ovens are remarkable technological products. What are the different types of ovens? Our offer includes:
- chamber ovens below 600°C
- continuous ovens below 600°C
- chamber ovens above 1000˚C
- continuous ovens above 1000˚C
Ovens are implementing efficient technological solutions with high energy standards. They are helping alternate the physical properties of the products, and improve their structure. Industrial ovens are used in various heat processes such as heat treatment of steel annealing, tempering, baking, sintering, nitriding, tempering, normalisation.
Different types of industrial ovens with heat treatment below 600°C
What is an industrial oven with heat treatment below 600°C? The chamber oven heats products loaded on carts, and its goal is to achieve evenness of the products. Evenness can be accomplished with the help of airflow vents and through mixing the oven atmosphere. The products going into the chamber oven are loaded onto carts and pushed through the door into the oven. The evenness of the products and the speed of the heat treatment process, are determined by the method used to load products onto cards, and the size of the ventilation systems. The energy usage depends on the correlation between the weight of products and the cart weight. The mass of the products on the batch can be 1000 kg, 3000 kg or 5000 kg. A continuous oven is used for baking, paint finishing and was designed for colour curing after powder coating. With the help of a chain transporter, the dyed pieces are conveyed through the oven, which is a heating tunnel. Heating is achieved through infrared heaters and ventilation systems equipped with channel burners. The paint finishing process ends with the help of the infrared channel burner that heats the air that circulates through the dryer.
Different types of industrial ovens with heat treatment above 1000°C
What is an industrial oven with heat treatment above 1000°C? Industrial ovens that allow heat treatment above 1000˚C are equipped with appropriate insulation and with a frame. The insulation is usually done by grog brick, refractory concrete or refractory ceramic wool. Sort of insulation is meticulously selected based on the type of the oven, the temperature and oxidation or reduction - the atmosphere. Industrial ovens can work up to the temperature of 1600°C. That guarantees evenness of products through the precise number of the high-speed burners. Ovens use special radiant burners and use radiation as the main transmission tool. These regenerative and recuperative burners allow for best energy efficiency. Industrial ovens can be heated indirectly through use of radiant pipes in the obligated atmosphere or directly through smoke gases. Chamber industrial ovens above 1000˚C have built-in burners that mix the atmosphere with strong impulses that help them accomplish evenness. The temperatures fall and rise along the curve, along which they can reach 70 % efficiency or fail to work. The products transported through the continuous industrial ovens above 1000˚C, are heated and depending on the process, cooled-down. The products travel on the carts, carriers and slats or roller hearths or chains. Rotary ovens are made to heat fine materials which are placed into a rotary drum. Fine materials such as mulch, pallets, balls, chippings can be heated directly, with the burner in the centre of the rotary drum or indirectly with burners in the coat. Rotary quenching oven is an energy-efficient industrial oven with a controlled atmosphere in the drum. The controlled atmosphere is achieved by granular material that shuts down the air supply to the drum with its density while entering the drum. The use of recuperative burner and proper sealing is making the rotary quenching industrials ovens energy efficient. As an industrial ovens manufacturer who produces the equipment in its entirety using an established principle, we are confident we will help you incorporate our industrial ovens to your new or existing work process.