DE57164C - Feeding device for shaft furnaces - Google Patents

Description

IMPERIAL PATENTAMTr

I PATENT LETTERING

CLASS 18: Ironmaking.

. ■ Patented in the German Empire from July 35th 18go.

The in the following and the enclosed

Drawings will be discussed in the feeder by a motor in slow rotating

* shifts and guides the loading materials, which were filled into the funnel lying outside, the furnace

continuously closes without opening the gas trap closing the gout, causing gas losses

. brings about. ,

It essentially consists of the feeder, the distributor and the gas trap. .

The drawing shows in Figs. 1 and 2, in • Figs. 3, 4, 7 and 8 and in Figs. 5 and 6 different ones Types of feeders that can be used here.

Distributor and gas trap are with all arrangements pretty much the same; the construction of the latter is directly evident from the drawing; If a central pipe is to be used, it must be hung below the distributor. · ■

The distributor consists of a funnel V ₁ that rotates slowly around the vertical axis and has a shovel-shaped outlet V ₂ that runs obliquely downwards - the position of which can be changed in relation to the furnace profile. . The materials are fed to it in small individual quantities as continuously as possible and slide into the furnace during the pressure, spreading evenly in a precisely determinable path, with the 'coarser pieces' rolling inwards or outwards, while the finer pieces lie in the ring path remain, a storage which must be regarded as the most favorable for the expedient distribution of the charge in the furnace and the passage of gas. By changing the length of the suspension rod F (rotation of the double nut loop), possibly by inserting a differently shaped outlet, which can be easily implemented, the Schütlbahn can be given any desired position.

The feeder consists in Fig. 1 and; 2 off. an inclined chimney S with closing flaps K ₁ and UiT ₂ at both ends and a filling funnel T ₁ . If the latter is filled with a certain amount of material, the previously closed flap K ₁ is lifted by a rod C, which engages the lever H _1; it lets the material roll through and closes again after the rod C ₁ is released under the pressure of the counterweight. During this process the flap / r _{2 was} closed; now it opens and closes in the same way as K ₁ ; One of these two flaps is therefore always closed, thus preventing gas from escaping into the room. A small pipe R can be used to discharge small amounts of gas that have accumulated between the flaps. j

The opening of the flaps cause the seated on the control shaft ₂ W cam lever D ₁ and Z) _2, which lift the Zugslangen C, and C ₂ to the required height and drop .then; their game is a little slower; as the turning movement of the healer, and in such a way that the latter

so much in advance as a single chimney filling, distributed on the chute, makes up for it.

As can be seen, each is desirable Attitude in terms of size. the chimney filling, lifting height and duration of the flaps etc. easily executable.

The feeder, FIGS. 3, 4, 7 and 8, can, which was not the case with FIGS. 1 and 2, be filled directly from the gout plateau; It consists of two horizontal, concntrically mounted, slowly rotating cylinders with an intermediate, helically running conveyor belt; the helical channel formed in this way takes the place of the chimney S in FIG. The last flap can also be arranged in such a way that it lifts the material at the end of its way to the distributor so that the latter can be stored a little higher.

Fig. 5 and 6 show how the last described feeder at the same time as a rotary rocker Can be used; in this. Cases the cylinders must be stored on rollers at one end, while at the other end one continuous axis can be applied.

Against gas loss is the point where the rotating cylinder catches the gas. whose stem U penetrates, to be sealed with a suitable stuffing box O.
. The drive of the entire feeding device can be carried out conveniently in various ways, starting directly from a transmission or a motor by means of a spur gear or worm gear transmission. It has the advantage of greater lightness, more convenient assembly, material-free work and, above all, the possibility over the usual feeding devices; to be able to set the most suitable filling for the kiln at any time without interrupting operation. .

The advantages which it produces directly for the operation of the furnaces are as follows:

Even distribution, good loosening and correct arrangement (with regard to piece size) the loading;

Uninterrupted gas extraction, therefore avoidance of gas losses and cooling in the furnace and explosions;

Larger free cross-section for gas extraction; .

Saving on operating staff, none . Amusement of them by escaping gases, independence from their reliability;

Protection of the upper shaft masonry (due to the smooth introduction of the feed), as well as the gout plan with the substructure (by. Avoidance of bumps) among other things. m. ''

The advantages mentioned have a better, more regular furnace cycle, therefore fuel savings, Larger output, additional production, savings on wages, im Entourage.

Claims (1)

Patent Claims: A feeding device for blast furnaces and similar shaft furnaces with a closed furnace, which continuously feeds the charging materials into the furnace and distributes them in it, without the gases being able to escape to a point other than the intended place, characterized:
i. and an obliquely its location through which the materials can be prepared by a Verlhciler consisting of an about its Vcrticalachse rotating funnel (V ¹⁾ extending downwardly, a shovel shaped spout (V ² J ₁ are changed to the furnace profile gleichmäfsig in ^exactly! regulirbarer annular Web to be spread, and, '
3. by a feeder for feeding the 'feed material to the distributor,' which feeder is the escape of ■ ■ _ ·; Prevents gases, and either exists
; a) from a hopper T ¹ , a ' ; ' inclined chimney (S) with two . "· 'K:': ■ Shutter flaps (K ¹ and K ² ), which · •., From the drive device of the '.; _: . in part so operated that the . . ' upper flap (K ¹ ) opens when ·:. "{; ■. ■ · '■' ■; ': the funnel frV is filled and the .:;:;, Slide material into the chimney (S) ; i ■■ can, while the lower (K ² ) closed - ',: l ·'. "> ·: '.. is closed, that the upper';; ^: · / ■ then sleeps and the lower '!,' opens and the material into the! funnel ._ V of the distributor slides, with ; .VV- ¹ room '. ₃ . for example gases V ν penetrating into the chimney S; through a pipe (R) ■ '■■ -.; .. <■: .-; ■ ^; can, or ': b) from two horizontals, concentric ,: '' Cylinders, the inner of which is ■; ■ ; V ■ closed, the outer one by means of ■. · ■ ··· '..' ■ sleeve sealed against the gas trap ■, '.' is, in conjunction with an between . ■ · both arranged, helically running conveyor belt, where 1 the helical one thus formed ■; Channel the material by rotating the cylinder and moving it through two ■ V by at least one gear from one - ■ '■: flaps located on the other remote close'. is closed, of which the latter can be so arranged that they '' the material at the end of its path - for distribution, so that it can be placed higher, which feeder can be used in any way rotary motion -is offset which by the axis of the same on the distributor is transferred, or c) from the under 2 b) marked Device with the design restriction that the inner cylinder, is so much shorter than the outer one that in the latter it is the material supplying waves can be released into it, with the feeder itself acts as a top rocker, in that the material moves through its rotation emptied into them, ' For this ι Watt drawings. BERLIN. OEDHUCKf M THE RECHBDRUCKEnEL