The fixed axis rotary furnace is nothing more than a rotating tube with burner at one end and a flue at other. The furnace operates under negative pressure and draws cold air from outside thus making it virtually impossible to control the atmosphere of the furnace, which is nearly always oxidizing (air rich). This condition makes it necessary to use large amount of salt to protect the charge. The oil consumption is also high because travel length of flue gas is less. The UTRF furnace on the other hand is a closed chamber design having a single en-trance and exit point. The door carries the burner and the flue. The furnace operates under positive pressure and when the burner is firing there is a total absence of outside cold air therefore the furnace can operate with reduced amount of salt flux. Additionally the furnace operates at an angle, the charge is mixed with a similar action that of a concrete mixture. This improves homoge-neity and heat transfer resulting in a very high thermal efficienc

Functional Description

Chips from machining operations are fed into the screw feeder hopper (A). The screw feeder feeds the chips into the rotary hearth (D) at a constant rate. In the rotary hearth, the chips are typically heated to a set point temperature between 800 and 900°F to vaporize the water and oil. Products inside the rotary hearth (D) are indirectly heated. Natural gas fired burners/furnace oil burner to heat the rotary hearth from the outside. These burners are fired into a cavity between the outside of the rotary hearth and in-side of the furnace shell refractory. There is no direct flame impingement on the chips or extreme temperatures that could result in surface oxidation of the chips.

Technical details
It is basically an impact mill unit. The main grinding unit is a fabricated hous-ing. Hardened impact hammers are housed in main grinding unit. The grinder is powered by 10/25/50 HP 2800 RPM electric motor. Due to heavy impact the aluminum dross is ground to fine particle thus leaving aluminum particle and oxide separated from each other. The grinder is connected to cyclone type dust collector. The function of cyclone dust collector is to separate fine dust and heavy particles. A blower is provided to suck the fine particle and send it to the filter bags. The function of filter bag is to collect very fine dross particles from the grounded product. Filter bags are provided at the top to minimize dust pol-lution inside the factory

Single and Double Decker screens are manufactured as per the requirement. The vibratory screen is most suitable to screen Aluminum dross after grinding to get maximum recovery of aluminum from dross different sixes and varieties are available as per the specific need of the customer. An all SS screen fitted in the machine is easily replaceable type. Different mesh sizes are available as per the specific customer requirement.

Aluminum scrap normally contains iron particles if not removed may lead to increase in iron content in the melt which is not desirable different capacities and sizes are available on request.

Special Features
Maintenance of the Press is very easy.
All Spare Parts are easily available.
Rigid construction.
Replacement of parts is easy & less time consuming.
User – Friendly Press.
All parts are of international standards, hence reliability is more.
Very Easy Hydraulic Circuit.

We provide oil centrifuge system for the cleaning of contaminated furnace oil in order to improve burning efficiency of combustion system. Contaminated oil not only reduces burning efficiency of furnace oil but it also increase down time of combustion system. By continuous cleaning of contaminated oil frequent cleaning of burner nozzles can be avoided. In total it improve burning efficiency of furnace oil and reduces down time of combustion system. We can provide oil centrifuge according to our customer specific requirement. We also provide centrifuge to remove moisture from aluminum chips to improve overall recovery of metals from turning and boring scrap.

We can supply different type of rotary furnace of capacity to suit our customer requirement. This can be for aluminum scrap processing or heating of other materials. We can take up tailor made order for the design , engineering and supply of different type of fixed axis rotary furnace as per the specific require-ment .

Hot dross from the furnace is collected in to a pan. The pan is shifted to dross processing machine by forklift/crane. Dross processing machine is a modified version of Universal Tilting Rotary Furnace. The major difference is that the door of the furnace is completely flush with the furnace and the door rotates with the furnace.

When all the dross is charged in to the furnace. The furnace door is attached with the furnace body and is detached with the door Colum. The furnace is ro-tated at a high speed which separate liquid aluminum metal from oxide. After the rotation the furnace tap hole which is located at the front end is open and liquid aluminum is tapped out by tilting the furnace upward. When all liquid metal is removed, the furnace is moved back to its original position and the door is removed from the furnace. Now all residual oxide with minimum amount of trace aluminum is collected in a pan for disposal .