SU990821A1 - Charge distributor of blast furnace charging apparatus - Google Patents

Description

(54) DISTRIBUTOR OF THE DIETARY LOADING FIXTURE OF THE DOMAIN FURNACE

FIELD OF THE INVENTION The invention relates to ferrous metallurgy, in particular to the equipment of shaft furnaces. There are various designs of charge distributors. The summer distributor of M. Babines’s design, consisting of a funnel and a tray, should ensure uniform distribution of charge materials 11. However, the rotational speed of the funnel should be very high for this (due to the high flow rate of the material from the bunker neck) which is practically difficult to take, given the large peripheral speeds and significant eshamic loads when joining materials into a funnel. Therefore, such a distributor can work only by stations with a turn of the tray at a certain angle after pouring out the next portion of the charge. A known dispenser is a charge of the construction by A. G. Koshelevsky, consisting of a funnel with a side outlet and a fkoB rally line of length t2}. The disadvantage of this distributor lies in the fact that during the insertion, the material flow emerges from an orifice tilted to the vertical axis at an angle and mainly falls on the lower part of the tray. At this point, a portion of the material, mine tray, is poured directly onto the throat. The irregularity of the circumferential distribution of the material is 10-15% with a pronounced orientation. The closest in design and technical effect to the proposed is the charge distributor of the charging device of the blast furnace, which contains a funnel and a distribution element 3 suspended on coaxial vertical grilles. The disadvantage of the known distributor is that the material from the funnel outlet does not fall on the top, but on the middle and lower parts of the distribution element, as a result of which the desired material distribution is not achieved. The aim of the invention is to improve the distribution of the charge. The goal is achieved by the fact that, in the charge distributor containing a funnel suspended on coaxial vertical rods and a distribution element, the funnel is equipped with a visor deflecting the flow of the charge coming out of it toward the axis of the schtang, made in the form of a truncated conical or cylindrical shell, forming in the vertical plane passing through the oiH rods and the point of the funnel's bottom most distant from the axis, it is inclined to the vertical at an angle of 25-40 °. Visor can be made removable. Such a constructive implementation provides a quick replacement in the case of abrasive wear 15. The drawing schematically shows the charge distributor, a cross-section. The charge distributor consists of a rotating funnel 1 suspended on a rod 2, a rotating distribution element 3 suspended under the funnel 3, suspended on a rod 4, coaxially to the rod 2 and passed through it. A removable visor 5 is attached to the lower part of the funnel 1. The latter is made in the form of a truncated conical shell, designed by the funnels under study.

Side outlet funnel (known)

Funnel (known)

Funnel with a visor charge distributor (proposed)

Table 1

Irregularity factor,%

10 - 15 13 - 15

4-6

Table 2, which is located in a vertical plane, passing through the axis of the rods and the point of the funnel's bottom most distant from the axis, is inclined to the vertical at the angle of the DA. The charge distributor operates as follows. Charging materials are loaded into the rotating funnel 1, which, when exiting the funnel, are deflected by the visor 5 towards the axis of the rods and fall onto the upper part of the distribution element 3. When moving along the distribution element, the material spreads along it and descends in a wide sector at which a uniform distribution is achieved. circumference. On a universal mechanized stand, studies of models of funnels of various designs on a scale of 1: 6 were made. The results are shown in Table. 1 and 2. Table 1 shows the district distribution of the agglomerate depending on the design of the funnel, Table. 2 - the circumferential distribution of the sinter, depending on the angle of inclination of the most distant from the axis of the rods, forming the peak of the proposed charge distributor.

Claims (2)

'Claim 1. The charge distributor of the loading device of the blast furnace; comprising a funnel ' - in the vertical plane passing through the axis of the rods and the point of the lower part of the funnel as far as possible from the axis, is inclined to (the vertical plane at an angle of 25-40 °. 2. Distributor pop. 1, characterized in that the visor is removable.