Skip to main content

Indirect Dryers Outdo Direct Dryers in Drying Applications

A Rotary Dryer is a type of industrial dryer employed to reduce or minimize the liquid moisture content of the material it is handling by bringing it into contact with a heated gas. These dryers are a critical component in many industrial processes, capable of processing all sorts of materials from chemicals & fertilizers to minerals & ores and nearly everything in between. The dryer is made up of a large, rotating cylindrical tube, usually supported by concrete columns or steel beams. The dryer is inclined to slopes slightly so that the discharge end is lower than the material feed end in order to convey the material through the dryer without opposing the gravity.
Rotary Dryers are extensively used for Drying but the following processes can be combined with it:
  • Cooling
  • Cleaning
  • Shredding
  • Separating
Features of Rotary Dryers:
  • Robust construction with various lifter (internal fins) options
  • Can be co-current or counter-current
  • Permits use of higher drying temperatures
  • Relatively long residence time
  • Highly efficient functions
  • Economic fuel and energy consumption
  • Low Maintenance cost
  • Reduced capital and operating costs
  • Huge capacity available as compared to other dryers
Rotary Dryers are majorly classified on the basis of heat transfer:
  1. Direct Rotary Dryer
  2. Indirect Rotary Dryer
Direct Rotary Dryers use direct contact between the material and drying air to scale down the moisture content of the material. Hot steam/air is circulated within the dryer, with the material being lifted up and rolled back down by a series of internal fins lined along the inner wall of the dryer. These dryers are used throughout a multitude of industries, including fertilizer and agriculture, mining and minerals, specialty chemicals, and more. They offer heavy-duty processing and consistent reliability.

But the direct dryers are at a disadvantage when assigned to dry material pigments or combustible materials as there is a risk of contamination or losing the original components of the materials. Hence the Indirect Rotary Dryers are brought into application. These dryers work on steam/air which is preheated by some means where burner combustion gases do not enter the dryer and have no direct contact with the material being processed. It commonly finds its application with food grade materials, highly combustible materials, organics such as grains and pulps, and fine materials such as pigments.
Rotary dryers can be widely used to dry various materials, and are simple to operate. They are used to process the following materials at the respective industries:
  • Metallic and nonmetallic minerals at Mining Industry
  • Sands, stones and soil at the Cement & Construction Industry
  • Wood chips at Wood Processing Industry
  • Food grains, cereals, pulses, seeds, fermented leaves at the food processing Industry
In some cases, combination of direct-indirect rotary dryers is also available to improve the overall efficiency.
Why choose us?
Accuracy, efficiency, machine quality and output quality are not just words but KERONE’s lifetime commitment towards our profession since last 42 years, creating a base of more than 1000 loyal customers. Our heating & drying systems are used to meet the varying demands of numerous industrial applications – all with a level of precision that manufacturers seek. We also provide detailed assistance without much hassle of complex functioning of the machinery. We always strive to achieve more than client satisfaction with our timely delivery, quality and efficiency towards every machine manufactured by us.

Comments

Post a Comment

Popular posts from this blog

Artificial Intelligence (A.I) in Food Industry

  When discussing about the food industry, technology isn’t generally the first thought that comes to mind. But these days, technology in the food industry is a required part of   food production   and delivery processes. We find food through applications, and manufacturers produce it with the help of robotics and data processing. Tech could remarkably enhance packaging, increasing shelf life and food safety. The eminence of food is also improving while manufacturing costs are less. Knowing what better to produce in huge amount of numbers is the key to increase revenue. Customer and market insistence are changing very fast, so it is even more important to be one-step ahead of the competition. Explaining the most habitual tastes and preferences is the most praised thing for a food business owner as well as for a food manufacturer. For example, the newest trends in food tech are attached to a stream of healthy lifestyle followers. In order to recognize them,  Machine Learning  utilizes t
Post a Comment
Read more

Different Types of Sterilization Process

  Sterilization can be accomplished by an amalgamation of heat, chemicals, irradiation, high pressure and filtration such as steam under pressure, dry heat, ultraviolet radiation, gas vapour sterilants, chlorine dioxide gas etc. Successful sterilization strategies are necessary for working in a lab and negligence of this could lead to severe consequences, it could unexpectedly cost a life. So what are the more frequently utilized methods of sterilization in the laboratory, and how do they work? The Sterilization is conveyed out by the methods according to requirement. The methods are: 1. Moist Heat Sterilization 2. Dry Heat Sterilization 3. Gas Sterilization and Others. Moist Heat Sterilization:  Moderate pressure is utilized in steam sterilization. Steam is utilized under pressure as a means of accomplishing an elevated temperature. It is dominant to confirm the accurate quality of steam is utilized in order to keep away the problems which follow, superheating of the steam, failure of
Post a Comment
Read more

Microwave Continuous Vulcanization (CV) Rubber Curing Oven

Vulcanization is process of converting natural rubber or rubber polymers into more durable and mechanically strengthens rubber by the process of mixing sulfur and processing. This process results in changing the cross-linking bonds within the natural rubber and making bonds more strong and non-sticky.  Vulcanization curing is achieved by heating the natural rubber or rubber polymer at very high temperature along with sulfur or any other agent, such high level of temperature rise results into changing of bond within the rubber and resulting in non-sticky, maker it lesser deformable when heated, and removes the brittleness this helps rubber to achieve the desired level of elasticity. Continuous Vulcanization curingprocess is most common process used for variety of application. In the process Continuous Vulcanization curing rubber and accelerator is put under high temperature and pressure, this mixture is passed through the continuous heating line during the process, some of C-H bo
3 comments
Read more