SU1216603A1 - Rotary furnace - Google Patents

Description

2. The furnace according to claim 1, which differs in that it is provided with mounted on the furnace corona with grooves and fingers entering the last, mounted on a rotating annular chamber.

The invention relates to the production of building materials and can be used in rotary kilns in the production of light expanded aggregates with dusting.

The purpose of the invention is to increase the reliability of the furnace,

Fig. 1 shows a rotary, g oven, general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows the node I in FIG. one.

The rotary kiln contains a lined body 1, a loading head 2 and a discharge head 3, the Burner 4 consisting of the duct 5 and the pipe 6 for supplying fuel oil, is located on the side of the discharge head 3.

The device for supplying the dusting material 7 to the pellet of the burning pellets is made in the form of a socket 8 fixed to the furnace body 1 with tuyeres 9 and locking-regulating devices 10 and a dusting material supply unit 11 to the tuyeres 9 connected to the pressure pipe 8 and the pneumatic line 12. The dusting unit 11 material to the tuyeres is made in the form of a fixed annular annular chamber 13 and a rotating annular chamber 1 located inside the duct 5 of the burner 4 with the formation of the inner surfaces of the annular chamber air dvod present burner nozzle. On the case 1 of the furnace are installed drove 15 with grooves g (not shown). The fingers 16 entering the grooves IS ,, are mounted on the rotating annular chamber 14, the metcdu by annular chambers 13 and 14 in the annular gap 17 are installed seals (end

3, Furnace in PP. 1 and 2, of which the seals of the impregnating material supply unit to the tuyeres are made in the form of elastic rubber rings with annular bronze overlays located between the annular chambers.

made in the form of elastic rubber rings 18 with annular bronze plates 19. The rotating annular chamber 14 rests on the bearings 20; In the annular chambers 13 and 14, the channels 21 are provided for supplying the mixture and the channels 22 for removing it.

The rotary kiln works in the following way.

The dusting material (air mixture) from the feeder-dispenser through the pneumatic line 12 enters the fixed annular chamber 13 through the channels 21. Next, the dusting material from the annular gap 17 through the channels 22 in the rotating ring chamber 14 is directed to the nozzle 8 fixed to the furnace body 1, and enters the tuyere 9, equipped with locking and regulating devices 10, which regulate the consumption of dusting material, and then the annular gap 17 compresses the elastic rubber bands 18 with annular bronze overlays 19 between the annular chambers 13 and 14,

To reduce the loads on the nozzle 8, the rotation of the rotating annular chamber 14 is carried out by the carrier 15, welded to the furnace body 1, through the fingers 16 mounted on the rotating circular chamber 14. Compensation of temperature expansions occurs due to the grooves in the carriers 15, which the fingers 16 freely enter are elongated. The reduction of the loads on the fingers 16 is achieved by installing a rotating annular chamber 14 on the pliers 20, which are made, for example, of porous bronze impregnated with a lubricant. The proposed burner makes it possible to increase the reliability of operation of the furnace, since the unit for supplying material to the tuyeres is located inside the burner duct and is constantly cooled with air supplied to the combustion of fuel oil. In addition, the implementation of the drive of the rotating annular chamber directly from the furnace body makes it impossible

216603.

Breakdowns of the Nozzle due to the mismatch of the angular velocities of the drum and the chamber itself and to compensate for the temperature expansion of the drum at 5 its heating to 1000 C.

In addition, the workings of the seals are improved, as they are pressed by the end surfaces to the rotating-rotating annular chamber with the pressure of the air mixture in the annular gap.

A16

FIG. g

5Fi .Z

Editor S.Patrusheva

Compiled by S. Prkova

Tehred A.Achcorrector S. Shekmar

Order 991/49 Circulation 561 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

Claims (3)

1. A ROTATING FURNACE containing a lined body, a loading and unloading head, a burner located on the side of the unloading head, and a device for supplying dusting material to the layer of fired granules, made in the form of a pipe with tuyeres and locking regulating devices and an assembly mounted on the furnace body the supply of dusting material to the tuyeres with seals connected to the pipe and pneumatic pipeline, characterized in that, in order to increase the reliability of the furnace, the node for supplying material to the tuyeres is made in e coaxially arranged stationary and rotating annular chambers disposed within the burner duct to form the inner surfaces of the annular chambers of the air supply of the burner nozzle. figure 1 2. Oven pop. 1, characterized in that it is equipped with a carrier with grooves installed on the furnace body and included in the last fingers mounted on a rotating annular chamber. 3, The stove according to paragraphs. 1 and 2, which is characterized in that the seals of the node for supplying the dusting material to the tuyeres are made in the form of elastic rubber rings with annular bronze plates located between the annular chambers.