SU1565893A1 - Charge distributor of blast furnace charging apparatus - Google Patents

Abstract

The invention relates to blast furnace production and can be applied in blast furnace charging devices. The purpose of the invention is to eliminate dust emissions into the atmosphere, reduce downtime and increase the service life of the distributor. After the charge is loaded into the rotating funnel 1, the gas sealing cone 8 is lowered and, together with it, the protective cone 6. At the same time, the transfer ring 5 moves under gravity to the stationary ring 9, closing the gap. Upon further movement of the cones 6 and 8, the charge rashes down and the dust emissions into the atmosphere are eliminated.

Description

The invention relates to ferrous metallurgy, namely to the charging equipment of blast furnaces

The aim of the invention is to eliminate dust emissions into the atmosphere, reduce furnace downtime and increase the service life of the distributor.

The drawing shows the charge distributor, general view

The distributor contains a drive funnel 1, equipped with an open gear 2 and supported on rollers 3. In the lower part of the funnel, the separating ring 5 is movable relative to the LONG axis of the studs k, which is in contact with the separating cone 6 8 installed in the hole of the stationary sealing ring 9. Between the flanges of the split ring 5 and the drive funnel 1 are placed annular elastic plates (springs) 10. Contact surfaces These blended ring 5 and blended cone 6 are hardened by surfacing with wear-resistant alloys. Possible options for the use of elastic plates in the form of rings of elastic materials, such as rubber, included in the composition of the contact surface of the ring 5.

The distributor of the charge of the charging apparatus of the blast furnace works as follows.

Through the open gear 2 unwind the drive funnel 1 on the rollers 3 to a predetermined speed. The paddle ring 5 is movably attached to the studs A and pressed to the surface of the split cone 6 by springs 10, it is informed by rotation of motion on the bearing 7 that is synchronous with the speed of the drive funnel 1. After loading the charge into the rotating funnel 1, the gas cone 8 is lowered and connected to it bearing 7 is a split-end cone 6. In this case, the split-out ring 5, under the action of springs 10 and its own weight, follows the load-cut-out cone 6 for a distance limited to 1565893

by studs k, before the formation of a gap between the rings 5 and 9, which is chosen within 3 10 mm. Further lowering the twin cones 6 and 8 leads to the separation of the cone 6 from the ring 5 and the formation of an annular opening for unloading the charge. After unloading the charge and stopping the funnel 1, twin cones 6 and 8 are raised. In this case, cone 8 first touches ring 5 and follows with it until the sealing surfaces of gas sealing cone 8 and stationary gas sealing ring 9 come in. Advance opening of the gas seal formed by cone 8 and ring 9. It allows you to first equalize the pressure in the airlock with the atmospheric one, and then discharge the charge from the rotating funnel 1, i.e. eliminate the oncoming movement of the charge stream and the gas leaving the lock hopper.

When closing the double cones 6 and 8, the advanced closing of the contact surfaces of the cone b and ring 5 eliminates spillage from the funnel 1 to the gas sealing surfaces of the cone 8 and ring 9.

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Claims (1)

Invention Formula The distributor of the charge of the charging apparatus of the blast furnace, containing a rotational driven funnel in contact with the batch-cutting cone, a stationary gas sealing ring with a contact surface that contacts the gas sealing cone, characterized in that, in order to eliminate dust emissions into the atmosphere, reduce the downtime of the furnace and extend the time service distributor, it is supplied connected to the lower part of the drive funnel through the annular elastic plates of the separator ring, installed with the possibility of Strongly contacting shihtootsechnym cone joint vertical movement with it and contacting the stationary ring gazouplotnitelnym. Invention Formula The distributor of the charge of the charging apparatus of the blast furnace, containing a rotational driven funnel in contact with the batch-cutting cone, a stationary gas sealing ring with a contact surface that contacts the gas sealing cone, characterized in that, in order to eliminate dust emissions into the atmosphere, reduce the downtime of the furnace and extend the time service distributor, it is supplied connected to the lower part of the drive funnel through the annular elastic plates of the separator ring, installed with the possibility of Strongly contacting shihtootsechnym cone joint vertical movement with it and contacting the stationary ring gazouplotnitelnym.