SU1693339A1 - Device for loading charge on sintering machine - Google Patents

Abstract

The invention relates to the agglomeration of metallurgical raw materials and can be used in ferrous and non-ferrous metallurgy to load the charge on an agglomeration conveyor machine. The purpose of the invention is to reduce the consumption of solid fuels and increase the productivity of the process. To achieve this, the charging device for the sintering machine, containing a storage bin with a charge delivery window, a drum feeder, a loading tray and a charge stabilizer with an aerodynamic charge separation device, connected to the air supply collector, is provided with a distance of 1.0-1 6 height of the window of delivery from the discharge end of the stabilizer, between them, the charging tray, the charge flow divider with the drive, made D as a cylinder connected by a pipeline with a blowing chamber, and a piston, Connections with a divider. The application of the invention ensures that the charge is placed on a sintering machine with an optimal distribution of carbon along the height of the layer 1 sludge. SL

Description

The invention relates to the agglomeration of the sintering of metallurgical raw materials and can be used in ferrous and non-ferrous metallurgy to load the charge on the conveyor sintering machine.

The purpose of the invention is to reduce the consumption of solid fuels and increase the productivity of the process.

The essence of the invention lies in the aerodynamic separation of the charge with a heated air jet, which is exhausted at the discharge end of the stabilizer along the entire front of the charge mix, followed by dividing the flow into two parts. The smaller and fuel-enriched portion of the charge is placed in the upper layer by means of a free fall on the sintering machine, the other part is fed to the loading

tray and, pouring from it, forms the lower part of the layer.

The charge flow stabilizer should be made in the form of a blast chamber with a slot at the discharge end. This solution ensures minimal energy costs for separation, since the charge is blown out at the moment of its free fall, when the granules of the charge just begin to acquire kinetic energy.

The charge flow divider should be installed between the discharge chute and the stabilizer with the possibility of moving at a distance I from the discharge end of the stabilizer equal to 1.0-1 6 from the height of the dispensing window h.

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At a distance of I less than 1.0, the divider divides the flow of the charge into two parts without aerodynamic separation, which does not provide a positive effect. An increase in the distance I greater than 1.6 leads to additional energy costs for separation, as well as to excessive accumulation of hydrocarbon in the upper layer of the charge (more than 1.5 times as compared with the average content per layer).

Air for aerodynamic separation can be heated to a temperature not lower than 60 ° C. This prevents the charge from cooling down if it is preheated to the optimum temperature (about 60 ° C), which prevents condensation of moisture in the sintered layer, or provides some heating.

In nature of moving the charge stream divider, its kinematic connection with the piston, the cylinder of which is connected by a blast chamber, automatically maintains the optimal aerodynamic separation mode of the charge into two streams by moving the charge divider within I (1.0 - 1.6) h proportional to the air pressure in the blast chamber. With increasing air pressure on the piston, the rod, overcoming the spring resistance, moves the divider in the direction of increasing the distance I; while decreasing - under the action of a compressed spring, the divider moves in the opposite direction, reducing the distance I,

The drawing shows a schematic diagram of the device for loading the charge on the sintering machine.

The device contains a storage bin 1 with a discharge window 2 of height h, drum feeder 3, charge flow stabilizer 4 made in the form of a blast chamber with a slot at the discharge end, charging tray 5, charge flow divider 6, deposition chamber 7, layer height limiter 8 a heater 9; a blower 10; an incendiary furnace 11; and an actuator moving a divider 6 of the charge flow, made in the form of a cylinder 12, a piston 13, a rod 14, a spring 15, and a pipeline 16.

The device for loading the charge on the sintering machine operates as follows.

The prepared mixture is fed to the storage bin 1 and from there through the delivery window 2 is metered with a drum feeder 3. With the help of the stabilizer 4, the charge is removed from the drum and moves to the discharge end of the stabilizer.

From the blower 10, air is supplied to the heater 9, and then to the blower chamber of the stabilizer 4. At the moment of unloading the charge from the stabilizer, it is poured throughout

to the front on a flat air jet of heated air coming out through the slit of the blowing chamber of the stabilizer 4. By deflecting the trajectory of the fall of the granules of the charge of different mass and size by different values from the vertical plane, the aerodynamic separation of the charge flow is carried out. The flow divider 6 of the charge is separated into a smaller and enriched part of the charge and by free fall into

The deposition chamber 7 is placed in the upper part of the layer on sintering carts. The rest of the charge is fed to the loading tray 5 and further to the lower part of the layer. The formation of the charge layer is given

Heights H provide the height of the limiter 8 from the grate of the sinter carts.

The heating of the air in the preheater 9 is carried out by the heat of incendiary

horn and sinter machine.

The movement of the divider 6 of the charge flow within (1.0 - 1.6) h is carried out automatically by means of a drive by means of a sub-. Achi air through the pipeline 16 of the blast

the stabilizer chamber 4 into the cylinder 12 displacing the piston 13, the rod 14 with the spring 15 and the charge flow divider 6 kinematically connected with it.

The application of the invention provides

laying the charge on the sintering machine with an optimal distribution of carbon along the layer height, which ensures a reduction in the specific consumption of solid fuel and an increase in productivity

process.

Claims (1)

The invention The device for loading the charge on the sintering machine, containing a storage bin with a charge delivery window, a drum writer, a loading tray and a flow stabilizer with a device, aerodynamic separation of the charge, connected to the air collector, reducing solid fuel consumption and increasing productivity, the device is equipped with 1.0-1.6 heights of the dispensing window installed between the loading tray and the stabilizer, cylinder with a drive in the form of a cylinder with a piston, while the cylinder is connected by pipeline to the blast chamber, and the piston rod is connected to the divider. // / „ 2L 9 ° oh  L: oo "° oo °; "% eight . : U