SU1527273A1 - Charge distributor of blast furnace loading arrangement - Google Patents

Abstract

The invention relates to blast furnace production and can be applied to infinite blast furnace charging devices. The purpose of the invention is to increase reliability in operation. Tray 14 suspended on pins 13 fixed on fork arms 15 and 16, when the copier 12 rotates relative to the stationary body 5 that presses the rollers 17, is set at a predetermined angle. Due to the tight coupling of the levers 15 and 16, the moment on the trunnion 13 is evenly distributed. The purpose of the invention is achieved by placing the support rollers 17 and the trunnions 13 of the tray 14 in a zone free from gas and dust. The diametrical arrangement of the rollers on the levers ensures reliable contact of the rollers and the copier. 3 il.

Description

The invention relates to blast furnace production and can be applied in infinite charging devices of blast furnaces,

The aim of the invention is to increase reliability in operation.

Fig, 1 shows the charge distributor, a general view; in fig. 2 is a section A-A in FIG. 1; FIG. 3 is a section BB in FIG. 2,

The charge distributor of the blast furnace charging device contains a vertical cylindrical chamber 1 and a stationary funnel 2 placed in it. On the chamber 1 a bearing 3 is mounted, on the outer ring of which, made in the form of a gear ring 4, a housing 5 is installed, covering the funnel 2, a gear ring. 4 is engaged with gear 6 of the differential drive 7. In chamber 1, mount to support 8 on which bearing 9 is mounted with an outer ring, Bt.iiioji in the form of a gear ring 10, meshed with gear 11 differential drive 7, a copier 12 is mounted on the ring gear 10, pins 13 are connected to the housing 3 with a tray 4 suspended on them, forged pins 13 are forked levers 15 and 16, on the ends of which the rollers 17 are mounted, Copier 12 is truncated spherical shell, the center of which is located on the axis of rotation of the pins 13 of the tray 14,

Glasses 18 are mounted on housing 5, in which axles 13 are mounted on bearings 19, Rollers 17 are installed in eccentric bushings 20 on axles x 21,

The distributor works as follows,

Before loading the charge into the blast furnace, the differential drive 7 is turned on, which, through gear 11, drives the gear ring 10 of the outer ring of the bearing 9 mounted on the support 8, together with the cam 12, Gear 6 is braked. Copier 12, rotating relative to the stationary body 5, presses the rollers 17 mounted in eccentric bushings 20 of the levers 15 and 16. At the same time the tray 14 suspended on pins 13 fixed on forked levers 15 and 16 rotates on bearings of 19 glasses 18 and set at a predetermined angle. Due to the rigid connection of the levers 15 and 16, the moment on the trunnions 13 of the tray 14, created by the force of contact between the rollers 17 and the copier 12, is always evenly distributed.

Then, the gears 6 and 11 simultaneously rotate from the differential drive 7, wherein the housing 5 mounted on the outer ring of the bearing 3 and the copier 12 rotate synchronously and the angle of inclination of the tray 14 remains unchanged. The charge from the bunker after opening of the charge gate (not shown) through the funnel 2, located in chamber 1, enters the tray 14 and loads along the ring on the top of the blast furnace. If it is necessary to load the charge in other modes, the angle of inclination of the tray 14 can vary during its rotation by varying the rotational speeds of the housing 5 and the copier 12. The relative position of the copier 12 and the housing 5 is fixed by a sensor (not shown) and transmitted to the oven control panel,

Inert gas is supplied to chamber 1, which creates an overpressure above the pressure in the furnace. The gas enters the furnace space through labyrinth slots between the rotating body 5 and the chamber 1, as well as through the holes of the pins 13, the part of the body 5 is protected by mats protecting the inner

the cavity of the camera 1 from the radiation. The application of the invention allows

improve the reliability of the charge distributor by placing the support roller and the hinges of the tray suspension in an area not exposed to high temperatures and abrasive wear.

At different tilt angles of the tray, the diametrical arrangement of the rollers on the levers ensures reliable contact of the roller and the copier, thereby fixing the tray in predetermined positions, and making the copier in the form of a spherical shell, the center of which is located on the axis of rotation of the trunnion pins, will ensure automatic control of the distributor.

Claims (1)

Claims of the invention The charge distributor of the charging device of the blast furnace, containing a vertical cylindrical chamber placed in it along the axis of the furnace a stationary cylindrical funnel, distributor a divider tray fixed in the axles on the body enclosing the cylindrical funnel and C (; united by means of a rotating gear with a rotary drive, copier suspended on a bearing to the support, connected by means of a rotary actuator by means of a Rotary Drive. a tray, characterized in that, in order to increase operational reliability, it is provided with spatially connected with the distribution tray two diametrically located fork-shaped levers with eccentric supporting rollers fixed on them with the possibility of rotation, in contact with a cam, made in the form of a truncated spherical shell, the center of which coincides with the intersection point of the axles of the distributing chute with the axis of the blast furnace, 15 Phage.1 5-5 Fis.