Rotary Aluminum Melting Furnace

Introducing our Rotary Aluminum Melting Furnace, a cutting-edge solution combining the efficiency of rotary design with the versatility of oil and gas-fired burners. Key features include:

1. Dual-Fuel Capability: Our furnace is equipped with burners that support both oil and gas,providing flexibility in fuel sources based on availability and cost considerations.
2. Rotary Efficiency: Leverage the benefits of rotary action for efficient mixing and melting of aluminum, ensuring uniform heat distribution and optimal metallurgical results.
3. Precise Temperature Control: Achieve accurate temperature control throughout the melting process, enhancing the quality and consistency of the melted aluminum.
4. High Thermal Efficiency: The combination of rotary design and dual-fuel burners maximizes thermal efficiency, reducing energy consumption and operational costs.
5. Safety Features: Our furnace is equipped with advanced safety measures to ensure secure operation during the aluminum melting process.
6. Low Emissions: Employing advanced burner technology, our furnace minimizes emissions, aligning with environmental standards and sustainability goals. Experience the synergy of rotary efficiency and dual-fuel versatility with our Rotary Aluminum Melting Furnace—where innovation meets the demands of modern metal melting.

Rotary Furnace with Air Pollution Control Device About Rotary Furnace The Rotary Melting Furnace is a very flexible and universal equipment used for recycling many non-ferrous metals. It is the major lead production technology used in India and many other countries for Secondary Lead Production. A lead production system based on this technology has certain distinct characteristics such as: 1. Equipment scalable for installing higher capacities. 2. Recovers all lead in one production cycle. 3. Plates & powder from scrap battery as well as slag from Mini Blast Furnace can be used as raw material. 4. Requires addition of certain consumables. 5. Can be fired with various fuels. 6. Generates high Pollution both as Flue Gases & Fugitive Emissions. Description of Rotary Furnace It is a Rotary kiln in the form of a metallic cylinder with conical sides on both ends. Mild steel plate is used for construction of this shell and its thickness varies depending upon the capacity of the equipment. This shell is rotated on its own axis at 1-2 rpm. For this purposes tyres (also called riding rings) are fitted on the shell. These are fabricated from MS squares or flats, machined for a smooth finish. These tyres ride on steel rollers which are again machined finely. These rollers are fitted on a robust MS structural frame and driven by a gear & motor arrangement. The shell is lined inside with insulation and fire bricks of suitable Alumina content. Conical ends of the furnace are open on both sides. The furnace is charged with Raw material along with additives from the front end. This side is provided with a movable door on which a burner is mounted. The burner can be a conventional one or a fully automatic one depending upon the fuel used. At the other end, an exhaust block lined with refractory bricks is provided. A tapping hole is provided in the center of the shell from where molten metal & slag are discharged. Flue gases generated are sucked from the exhaust block side of the furnace. A typical 3.0 TpB Rotary Furnace has the following standard sizes & specifications : Outside dimensions of the Rotary

1. Shell dia : 2075mm
2. Shell length : 2500mm
3. Total length : 4500mm
4. Charging dia : 450mm
5. Exhaust side dia : 450mm
6. Refractory thickness : 200mm
7. Fuel : Furnace Oil
8. Burner : Model 4 A Make: Wesman with complete assembly
9. FD Fan capacity : 550 cmh at 44mm of WG
10. Gear Box in drive : 8”, 1:40 Ratio
11. Motor in drive : 15.0 HP x 960 RPM
12. Structure used for base : ISMC 250 x 80

Manufacturing Process Lead to be manufactured from Rotary Furnace can be obtained directly from scrapped batteries or as slag from Mini Blast Furnace. In case of former, batteries are cut open or broken to segregate lead scrap, plastic and other materials from them; lead scrap in the form of lead powder/ plates etc. is charged in the furnace along with a proportionate charge of additives. In the case of latter, slag produced from Mini Blast Furnaces is charged into the Rotary Furnace, again with proportionate additives. This process is a batch type process. After filling the required quantity of raw material (either manually or mechanically), the lid of the furnace at the front is closed. The burner attached to the moving door is then fired. Complete mass of lead raw material along with additive chemicals is heated at high temperature inside the furnace. After some time, molten lead is collected at the bottom of the furnace by puncturing the central opening of the Rotary Furnace. Lead is collected either directly into Jumbo Ingot Moulds or in receiving channels from which they are poured into Jumbo Ingot Moulds. After draining the Furnace of the first batch, production of next batch is undertaken and the Furnace is again charged with raw material. After three such batches, one batch of slag collected in Rotary Furnace is executed. This process leads to generation of flue gases which are toxic in nature and need appropriate and adequate Air Pollution Control System for their treatment. The steps of Charging and Tapping of Rotary Furnace also lead to generation of Fugitive Emissions which need to be captured at source and treated to maintain ambient air standards at workplace.

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