SU450066A1 - Rotating muffle furnace - Google Patents

Description

one

This invention relates to the field of C (Beton metallurgy, and in particular to muffle rotary kilns for firing mercury in raw materials.

A famous muffle rotary kiln, including a futheravic Koipinyc, a muffle with a closed end on the side of the toyon chamber and gas-venting chambers of technological and trading gases.

The known muffle rotary kiln limits the residence time of the material in the burning zone, and also does not allow for a sufficient separation of the furnace and process, which 1P1PI1To reduce their concentration.

In order to increase the concentration of technological gases, the proposed muffle rotary cushion is equipped with a trap pipe, installed on the muffle, and a reloading tray, with one end of the transporting pipe extending beyond the muffle and connected to the gas outlet chamber of technical gas, and the second to the reloading tray.

The drawing shows the proposed flow, longitudinal section.

The furnace includes a lined case 1, a combustion chamber 2 and a vapor chamber 3 of slipper gases. A cylindrical muffle 4 is installed inside the case; it is made from the side of the furnace chamber with a closed end and is provided inside with an overload tray M 5 with which the coaxially mounted dock is attached.

a pipe 6 provided inside with a support nozzle 7. For feeding the material into the muffle, the furnace is provided with a loading device. 8. Sealing the internal space of the muffle from the flue gas chamber

gases produced by the seal 9. The transport pipe is docked with the exhaust chamber 10 of the process gases and the cinder collection 11 by means of the seal 12. The furnace works as follows.

In the combustion chamber 2, fuel is burned, from where hot flue gases enter the furnace intermuffle space, are cooled due to a co-tact with the outer surface of muffle 4 and removed cooled

from the furnace through the flue gas chamber 3 slipper gases. The material loaded inside the muffle with the storage device 8, nqpe moves to the side of the combustion chamber, heating due to contact with the inner surface of the muffle. The burnt material at the closed end of the muffle with the transfer tray 5 1 is reloaded into the transporting tube 6, and with the help of a speleral shaped attachment 7 it is moved in the opposite direction

through the collector 11, the calcine is removed from the furnace.

Process gases are aspirated from the conveyor tube into the exhaust gas chamber 10 of the technological gases.

Subject invention

A muffle rotary kiln, including a lined body, a muffle with a closed cake on the side of the combustion chamber and gas outlet chambers of technological t furnace gas, characterized in that, in order to increase the concentration of technological gases, the furnace is equipped with a port pipe installed along the axis of the muffle, and a transshipment tray, with one end of the traioporting pipe extending beyond the muffle and connected to the vapor compartment of the technopoly gas, and the other end to the transshipment tray.

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