SU1245593A1 - Shaft furnace charging arrangement - Google Patents

Description

This invention relates to ferrous metallurgy, namely, devices for loading shaft furnaces.

The aim of the invention is to improve the uniformity of loading charge materials into the shaft furnace and reducing machine time.

Fig, 1 shows the device, a general view; FIG. 2 shows a device with a double-jaw shutter; FIG. 3 is the same with a single-jaw shutter.

The device consists of a charge bunker 1, a shutter made in the form of jaws 2, a gas sealing valve 3 and a rotating distributor A, A and S with linear dimensions of the flow section with a convexly concave jaw x, A and B - with a concave jaw x turning by 15 and 30 °, respectively. The device operates as follows

If it is necessary to load the charge materials into the furnace, the gas sealing valve 3 is opened, and then the jaws -2 of the charge hopper 1. At the same time, due to the rapid increase in the open section for the passage of materials to the distributor 4, an even flow into the furnace is achieved.

When opening the convex-concave jaws at 15 and 30 °, the linear dimensions of the flow section will be B, and with concave jaws, the linear dimensions are smaller than / and B. As a result, the delay of the charge material in the bunker is eliminated at the initial moment of opening the gate, it decreases transient time when the charge flow is set from zero to constant flow with the gate fully open. Since the distribution element rotates at a constant angular velocity, the proportion of material with a consumption less than the circumference of the furnace is reduced, which will increase the uniformity of loading charge materials into the furnace. Also, due to the fact that the time to reach the steady-state flow of the charge is reduced, the time to load one feed into the furnace and, consequently, the machine time of the loading mechanism drives decreases.

Fig: 2

Editor N. Gunko

Compiled by S.Yaschenko

Tehred L.Oleynik Proofreader I.Musk

Order 3961/17 Circulation 552 Subscription

VNIIPI USSR State Committee

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

 - - - -.--- - ----------- ---

Production and printing company, Uzhgorod, st. Project, 4

Fi,

Claims (1)

LOADING DEVICE OF A SHAFT MECHANISM, containing charge bins with shutters in the form of movable jaws, gas sealing valves and a charge distributor, which, in order to increase the uniformity of loading charge materials into a shaft furnace and reduce machine time, the jaw is made convex - concave and mounted convex part to the hole for the passage of the charge. gk * s 1 X I \ ί \ I 1 1 1 eleven Axis / / Lj ---- Figure 1