Industrial Klin

The kiln is a cylindrical vessel, inclined slightly to the horizontal, which is rotated slowly about its axis. The material to be processed is fed into the upper end of the cylinder. As the kiln rotates, material gradually moves down towards the lower end, and may undergo a certain amount of stirring and mixing. Hot gases pass along the kiln, sometimes in the same direction as the process material (co-current), but usually in the opposite direction (counter-current). The hot gases may be generated in an external furnace, or may be generated by a flame inside the kiln. Such a flame is projected from a burner-pipe (or “firing pipe”) which acts like a large Bunsen burner. The fuel for this may be gas, oil or pulverized coal.

Working Principle And Brief Description.

Operation is round-the-clock and annual production of up to 60 lakh bricks has been achieved from commercial VSBK’s operating in India and across. The kiln can be operated throughout the year and even during monsoon time.

A VSBK gives you unmatched flexibility of operation, good product quality and substantial saving in energy costs. You can plan a precise production schedule and produce exact quantity of bricks that you require. Once operational, loading and unloading is carried out simultaneously. In general, one batch of bricks is loaded (and one unloaded) every one and a half to two hours. The bricks remain inside the kiln for approximately 24 to 30 hours instead of the 20 to 30 days required with a BTK. This reduces the working capital substantially.

The choice of fuel is based on cost considerations and the quality of product desired.Based on the location, coal and even lignite pellets are being used effectively. However proper firing control and optimum quality is achieved with a low volatile coal having a calorific value between 4000 – 5000 KCal/kg to raise the kiln temperature around 1100 degree centigrade. High calorific value coal is not recommended for VSBK operation. Recommended coal size is between 5 to 50 mm. In recent times where suitable coal is not available, VSBK has been operated with wastebiomass based green solid briquettes. It has the equivalent consumption to coal and produces identical quality.

When simplicity, lower capital investment and easy maintenance are the main issues, Vertical Shaft Kiln is the right option for the refractory. Numerous fuels such as coke, coal, gas, oil, as well as other alternative fuels are combusted using different types of burner or charging systems. Our Production capacities for Vertical Shaft Kiln vary from 70 to 500 TPD are achieved.

Equipped with external burners and inside special refractory structures, that allows a homogeneous heat distribution in all the kiln cross section. These kilns allow the use of a wide range of fuels, alternate and/or contemporaneously. Thanks to their particular technology, in these kilns it’s also possible to use solid pulverized fuels as pet-coke, coal, saw dust or other waste fuels.

• Small to middle capacity lime productions.
• Fully & semi-automatic plant options.
• Low maintenance cost.
• Easy management.
• Smaller site area.
• Clean production.
• Low investment cost.
• Multiple fuel option with gasifier.