SU913735A1 - Receiving funnel of charging arrangement for blast furnace - Google Patents

Description

The invention relates to ferrous metallurgy and can be used in the construction of charge distributors of charging devices for blast furnaces.

Closest to the invention to the technical essence and the achieved result is the receiving funnel of the boot device of the blast furnace, comprising a case with internal charge dividers and outlet windows located inside it.

The known device, providing a uniform distribution of the mixture around the circumference of the furnace, cannot be used for laying it in "stations".

The purpose of the invention is to provide a differentiated distribution of the charge parallel to the walls.

This is achieved by the fact that the funnel is equipped with driving rotary elements mounted parallel to the walls of the body on horizontal axes and overlapping the exhaust ports.

The number of the indicated cell elements corresponds to the number of discharge windows.

. Figure 1 shows the receiving funnel, top view; figure 2 - section aa in figure 1; on fig.Z - funnel, side view.

The receiving funnel is installed above the distribution funnel (not shown in the drawing) and consists of a housing 1 equipped with dividers 2 arranged in parallel with respect to each other. In the vertical outer 3 and inner 4 walls of the housing 1, the funnels are fixed on horizontal axes 5 overlapping elements 6 and 7. The latter have the ability to rotate on the axes 5 until they come into contact with the wall of divider 2. The overlapping elements 6 and 7 are equipped with rotation actuators 8. The funnel has four discharge windows 9 and 10 arranged in pairs.

$ and 913735

913735

(

four

The device works as follows.

When overturning any of the skips, the materials from them are divided into two streams by divisors 2 and along the grooves they fall into the discharge windows 9 and 10 located at an angle of 90 * relative to each other. Thus, of the two skips (left and right) materials, they fall into the distribution funnel in four sectors located at an angle of 90 to each other.

If it is necessary to carry out a differentiated loading of the sinter (5 and coke around the circumference of the furnace, then the corresponding element of the chute 6 or 7 using the actuator 8 takes the position shown in Fig. 2, and all the charge materials are unloaded through 20 one window 9 or 10.

Thus, the agglomerate can be loaded in one area, and coke - in another. In this case, it would be more expedient to have such a loading sequence in which the entire agglomerate is loaded, for example, with a left skip, and coke — with a right or vice versa.

When loading through four discharge openings, the distribution of the ore part and coke may be the same as in known devices, but at the same time it is possible to overlap one or two discharge openings, ensuring differential loading of the charge.

The funnel remains in place, and the wear of its elements is reduced. With an increase in the operational capabilities of the proposed device, the maneuverability in the distribution of the charge improves, which, unlike the known devices, provides a more flexible change in the gas flow over the cross sections of the furnace top.

ten

913735

913735

Claims (1)

RECEPTION FUNNEL of the LOADING DEVICE of the DOMAIN FURNACE, comprising a housing with located inside it. dividers of charge and exhaust windows, characterized in that, in order to ensure a differential distribution of the charge in parallel to the walls, the funnel is equipped with driving rotary elements mounted parallel to the walls of the housing on horizontal axes and overlapping the exhaust ports.