Industrial Dryers

Rotary Kiln

A rotary kiln is a cylindrical, rotating furnace used for various high-temperature processing operations. It consists of a long, horizontal steel shell lined with refractory materials, which rotates slowly on its axis. The kiln is typically inclined slightly to allow materials to move through the interior as it rotates.

Key Features and Uses

Material Processing — Rotary kilns are used for processing solid materials, including cement, lime, ceramics, minerals and chemicals, by subjecting them to high temperatures.

Temperature Control — The interior of the kiln can reach temperatures ranging from 700°C to over 1400°C, depending on the process requirements.

Continuous Operation — They operate continuously, allowing for a constant feed of raw materials and the steady removal of processed materials.

Versatility — Rotary kilns are versatile and can be used for various processes, such as calcination, sintering, roasting, and pyrolysis.

Heat Source — The heat required for the processes is typically provided by a flame at one end of the kiln, fueled by gas, oil, or coal.

Rotary kilns are essential in industries such as cement production, where they are used to produce clinker, and in metallurgy and chemical processing, where they are used for various thermal treatments.

We have an in-house Spin Flash Dryer testing facility with a processing capacity of 5–20 kg/hr, developed for product trials, process development, parameter optimization, and scale-up studies. The facility enables customers to conduct actual product trials before finalizing the commercial Spin Flash Dryer, providing reliable data for equipment sizing and process design.

Testing & Trial Capabilities

• Feed processing capacity: 5–20 kg/hr, depending on product characteristics and moisture load
• Suitable for testing wet cake, paste, slurry, sticky, crystalline, and powdery materials
• Optimization of inlet and outlet air temperatures
• Optimization of feed rate, rotor speed, drying-air flow, and residence time
• Evaluation of final moisture content and product temperature
• Assessment of particle size, bulk density, flowability, and powder characteristics
• Evaluation of powder recovery through cyclone and bag filter
• Determination of specific evaporation capacity and thermal performance
• Generation of process data for commercial-scale equipment design

Product Development & Scale-Up

The short residence time and intensive mixing in the Spin Flash Dryer allow efficient drying while minimizing thermal exposure of the product. Trials conducted at 5–20 kg/hr capacity provide valuable information for establishing the optimum operating conditions and accurately scaling the process to industrial production capacities.

Test Before You Invest

Customers can bring their actual product/feed material to our facility for trials. Based on the trial results, we can provide a detailed trial report with recommended operating parameters, product observations, moisture results, powder characteristics, and scale-up recommendations.

Cage Mill Flash Dryer

E&D Cage Mill Flash Dryer is suitable to dry wet cake, lumps and even paste which is recovered in Filter Press, Centrifuge and so on, with advanced technology, reasonable price, compact structure, large production capacity and energy efficiency. This Cage Mill Flash Dryer can complete drying, lumps crushing and screening in a single step.

Features

• Material is directly fed from filter press to dryer
• Less drying time hence less labour handling and quick production
• Less electricity load
• Space is 1/3 that of Spray Dryer
• Various product range
• Energy consumption saving
• Fuel consumption saving
• Influence of heat on heat sensitive products is remarkably low even at high temperature
• Lump breaker with variable speed feed screw feeder for non-clogging of feed
• Only two operators are required to operate the plant instead of number of labourers in conventional drying system
• The environmental conditions remain clean

Applications

• China Clay industry
• Kaolin Clay industry
• Minerals industry
• Bentonite
• Cobalt Hydroxide industry
• Carbonate Hydroxide industry
• Copper Ore industry
• Starch industry
• Bagasse industry
• Pigments industry
• Dyes industry
• Phosphates industry

Capacity

• 1000 kg to 5000 kg/hr

Temperature Range

• 150°C to 250°C