Name: China Direct Fired Furnace Manufacturers Factory - Buy Direct Fired Furnace at Good Price
Brand: AGICO
SKU: 317594407

Description

Technical Parameters

Product Description

Direct fired rotary furnace assembled in a fabrication workshop

Direct Contact Heating for Continuous Processing

The rotating shell continually turns and advances the material while the burner and controlled gas stream establish the required heating profile. Direct contact supports effective heat transfer when the process permits the feed to contact combustion products.

Typical Applications

Our latest projects

Shanghai Jwell machinery Workshop co-operation projects

Twin rotary kiln lines for continuous mineral thermal processing

Mineral Calcination

Continuous treatment of suitable limestone, dolomite, gypsum, clay, and other mineral feeds.

Outdoor direct fired rotary kiln installation

Ore Roasting

Controlled heating for oxidation, reduction, activation, or phase modification where direct contact is acceptable.

Rotary kiln production system handling processed mineral product

Bulk-Solids Thermal Treatment

Drying, sintering, carbon processing, and selected recycling duties after material evaluation.

Working Principle

Direct fired rotary kiln showing burner flame gas flow and material movement

From Feed Entry to Controlled Discharge

Feed and Preheating

Prepared material enters the elevated end and begins heating as the shell rotates.

Direct Heat Transfer

Radiation, convection, and contact with combustion gases raise the material to the target temperature.

Controlled Reaction

Residence time and the thermal profile support the required calcination, roasting, or phase change.

Discharge and Gas Handling

Processed solids leave the kiln while exhaust gas moves to the specified collection and treatment system.

Product Advantages

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Controlled Material Movement

Shell speed, inclination, internals, and fill level are coordinated with the required residence time.

Flexible Gas Flow

Co-current or counter-current flow is selected according to feed sensitivity and the required thermal profile.

Purpose-Matched Refractory

Lining materials are selected for temperature, abrasion, chemical attack, and thermal cycling.

Integrated Process Control

Feed rate, burner operation, draft, temperature, and discharge conditions are managed as one system.

Main System Components

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AGICO combines the kiln shell, refractory, support, drive, burner, seals, and gas-handling equipment around the required thermal process.

Main mechanical components of a direct fired rotary kiln

Kiln Shell and Refractory

The lined rotating shell forms the process chamber and protects the steel structure.

Support and Drive

Tyres, support rollers, thrust control, gearing, reducer, and motor maintain stable rotation.

Compact rotary calcination furnace with support rollers and drive

$Refractory-lined rotary kiln installed inside an industrial building$

Burner and Kiln Hood

The combustion system establishes the required flame shape and heat release.

Seals and Off-Gas Path

End seals limit false-air ingress while the duct and fan system maintain controlled draft.

Rotary kiln hood sealing and gas handling connection

Engineering Selection

Inputs That Define the Furnace

Provide representative feed data

Confirm throughput and product target

Define temperature and residence time

Review fuel and available utilities

Specify gas and emission limits

Confirm supply boundary and site conditions

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Technical Parameters

Selection Item	Published Market Reference
Medium-temperature duties	Approximately 850-950 °C
Higher-temperature duties	Approximately 1300-1400 °C
Published shell diameter	Up to approximately 4.6 m
Published heated length	Up to approximately 23 m or longer
Gas-flow arrangement	Co-current or counter-current
Key sizing inputs	Feed rate, residence time, temperature, speed, slope, fill level, and airflow

Preliminary Reference

The above data is provided for preliminary reference only. Actual plant capacity, mixer configuration, storage volume, power demand, discharge height, control functions, and overall dimensions must be confirmed according to your concrete recipes, site conditions, utilities, operating schedule, and specific project requirements.

Discuss Your Direct Fired Furnace

FAQ

What is the difference between direct-fired and indirect-fired rotary furnaces?

A direct-fired furnace brings solids into contact with combustion gases. An indirect-fired unit transfers heat through the shell and separates the material from the heating gases.

Can one furnace process different materials?

A kiln may handle a defined feed range, but changes in chemistry, moisture, particle size, or reaction behavior can require different settings or mechanical configurations.

Should the kiln use co-current or counter-current flow?

The choice depends on feed sensitivity, temperature profile, off-gas conditions, and the required product discharge temperature.

How is furnace capacity determined?

Capacity follows from material test data, bulk density, reaction kinetics, residence time, fill level, shell geometry, temperature profile, and gas-flow conditions.