DE679479C - Blast furnace tank seal with rotatable filling funnel - Google Patents

Description

GERMAN EMPIRE

ISSUED ON
AUGUST 7, 1939

CALIBRATION PATENT OFFICE

ENCRYPTION

M 679479 CLASS 18a GROUP

D 78885 Vl \ i8a

Paul Wolf in Duisburg

has been named as the inventor.

Demag Akt.-Ges. in Duisburg blast furnace top seal with rotating filling funnel

Patented in the German Empire on September 16, 1938 Patent granted on July 13, 1939

The invention relates to a blast furnace top seal with a rotatable filling funnel, who executes a partial rotation with each filling In these known gout closures So far you have the sealing of the rotary funnel against the outside air by adjustable Sealing rings or stuffing boxes causes. Since this is a grinding of the funnel occurs with the sealing parts, it is

ο it cannot be avoided that these parts become leaky over time and then continuously Let gas through.

According to the invention it is proposed that the lower protruding into the furnace interior Part of the rotating funnel with a ring falling freely under its own weight to surround its downward movements generated by the bell that can be raised and lowered by means of stop means on the rotating funnel and upwards through one on the stationary Oven part attached resilient sealing ring are limited. With the rotating funnel closed while the rotating funnel is at a standstill, the movable ring is driven by the raised bell pressed on the fixed sealing ring, creating a reliable Sealing is achieved. So that no wear and tear when turning the funnel occurs, the movable ring is lowered slightly before rotating the funnel the bell pulled away from the stationary sealing ring. After the hopper is set in rotation, the charging process then takes place in the usual manner Way, further lowering the bell, with the moving one Ring on the stops limiting its downward movement, e.g. B. a lower one Flange of the rotary funnel.

In contrast to the known versions, it is therefore conscious while turning the funnel waives a perfect seal, but does so of the standstill of the rotary funnel, which has been by far the largest in time reached unprecedented perfection, where-

resulting from a significantly improved overall effect.

So that the resilient sealing ring, e.g. B.

a spring washer, which can easily be exchanged, is attached to a special ring arranged, which is attached to the roller ring of the fixed furnace part.

In the drawing, the subject of the invention is shown in three figures, and ίο show:

Fig. Ι a longitudinal section of the gout seal in the sealing position,

Fig. 2 shows a partial longitudinal section of the same gout seal for the others Operating positions,

Fig. 3 is a partial longitudinal section of a Another embodiment of the gout seal.

The rotating funnel denoted by ι supports a,> in a known manner with a collar 2 carrying the Άη drive ring on rollers 3, the stationary ring of which is denoted by 4. The rotating funnel 1 protrudes through the fixed roller tread with play into the interior of the furnace. The part of the rotary funnel 1 protruding into the furnace interior is surrounded by a ring 5 which is loosely arranged opposite the rotary funnel so that it can fall down under its own weight Bell 6. An inwardly directed projection 7 of the ring 5 and an outwardly directed projection 8 of the lower edge of the rotary funnel 1 form the limiting means for the downward movement of the ring 5. The upper edge of the ring 5 acts with one on the underside of the roller race 4. In the exemplary embodiment according to FIG.

The operation of the device described is as follows: When the rotary funnel ι comes to a standstill, the movable ring 5 is pressed with its 5 ″ upper edge against the flexible sealing ring 9 by the raised bell in the manner shown in FIGS. It is readily apparent that with the parts in this position, gas cannot escape from the furnace. Shortly before switching on the turning · ^Γ> 5 drive the bell is lowered by several centimeters 6 (s. Extended line position in Fig. 2). The ring 5 following the bell under its own weight is thereby freed from the sealing ring 9. Now the funnel 1 can rotate with the bell 6 without sliding. During the subsequent further lowering of the bell 6 to the position shown in dashed lines (Fig. 2), the ring 5 settles with its extension 7 on the extension 8 of the rotary funnel ι.

Claims (2)

Patent claims: i. Blast furnace top hatch with rotating yo with a filling funnel that rotates the tea every time it is poured characterized in that the lower part of the rotary funnel protruding into the interior of the furnace (1) is loosely surrounded by a ring (5), which is caused by the lifting and lowering movements the bell (6) is taken along, its way down through stop means arranged on the rotary funnel (8) and limited at the top by a resilient sealing ring (9) attached to the stationary furnace part (4) is. 2. Blast furnace top seal according to claim i, characterized in that the «5 compliant, e.g. B. designed as a spring ring sealing ring (9) on a special Ring (10) is arranged on the roller rim (4) of the stationary Part of the furnace is attached. 1 sheet of drawings