US3374930A - Discharge brick for casting ladles, intermediate containers and the like - Google Patents

Description

March 26, `1968 H. HA'sE ETAL 3,374,930

DISCHARGE BRICK FOR CAsTINC LADLEs, INTERMEDIATE CONTAINERS AND THE LIKE Filed Dec. 3. 1965 2 Sheets-Sheet l 5 8 l0 Y. 9 Arromunysv 3,374,930 INTERMEDIATE 2 Sheets-Sheet 2 ATTORNEYS March 26, 1968 H. HAsE ETAL DISCHARGE BRICK FOR CASTING LADLES CONTAINERS AND THE LIKE Filed Deo.

FIG. e

United States Patent C) 3,374,930 DISCHARGE BRICK FOR CASTING LADLES, IN- TERMEDIATE CONTAINERS AND THE LIKE Horst Hase, Wiesbaden, and Hans-Joachim Winkler, Krefeld-Urdingen, Germany, assignors to Stoecker & Kunz GmbH, Krefeld-Linn-Rheinhafen, Germany Filed Dec. 3,4 1965, Ser. No. 511,497 Claims priority, application Germany, Dec. 5, 1964,.

t 23,040 7 Claims. (cl. zzz-566) ABSTRACT OF THE DISCLOSURE A discharge spout brick for 4a pouring container of casting ladles and the like wherein the body of such brick This invention relates to a discharge brick for casting ladles, intermediate .containers and the like.

Known discharge bricks through which molten metal flows out of a container usually have a vertic-al or nearly vertically extending penetrating passage, the cross section of which may have d'iierent forms.

Vertical or nearly vertical passages which penetrate rthe discharge bricks cause their inlet eddy-like turbulences in the medium which is llowing through. These turbulences in the owing medium change more or less s-trongly during the ilowing of the same through the passage and lead to the known but undesirable dissociation or disintegration of the pouring stream leaving through the discharge brick and do not permit a compact pouring stream. To the flowing medium therefore, besides the vertically flowing components, a tangentially effective for-ce is added which has the tendency to twist apart the leaving pouring stream.

Attempts have been made to counteract this action by special constructions of the .cross section of the pas-sage in the discharge brick and forms of passages are known which tend to obtain .a lamina-r pouring stream. In all of these passage constructions the addition of the medium is accomplished from the top and there-fore the eddy-like turbulence occurs in the flowing medium at the beginning,

which then by the special construction of the passage cross section is in-tended to be weakened so th-at a somewhat closed and thereby usable flowing stream can be obtained.

An object of the present invention is to provide a discharge brick having ya substantially vertical passage closed at the top towards lthe interior space of the pouring container, with one or several substantially horizontally extending inlets from the passage to the discharge brick side walls.

A further object of the invention is to elimin-ate the circular eddies or turbulences which occur in the owing medium, since lbecause of the lateral inow of the medium the laminar flow of the sarne is maintained, while a tangentially acting force Causing the turbulences cannot arise. The result of this is that a closed and steady pouring stream leaves at the lower end of the passage through the discharge brick.

The arrangement of the inlet or inlets into the discharge .ICC

brick may be accomplished .in different ways. The inlets may be arranged in a plane extending radially from the passage and distributed around the same evenly or unevenly. Also, the inlets may be arranged offset from one Vanother in height along the passage. The inlets also may extend slightly inclined towards the top or the bottom towards Ithe central longitudinal axis of the passage. The inlets may have .any desired form of cross section. The passage may be extended beyond the mouth of the uppermost inlet. The passage also may be given any form of cross section, for instance circular, oval, cross shaped, or the like. Also, the passage may extend at a minor angle towards the perpendicular line.

An object of the invention therefore is to provide a construction in which the above mentioned special arrangements of the passage and/or the inlets in detail or in combination promote the form of a closed pouring stream.

The form of discharge brick according to the present invention can be used directly in cases in which no regulation of the pouring stream has to be obtained, for instance in continuous casting operations. If, on 4the contrary, a regulation of the pouring stream is necessary, a slide lock may be arranged at the outliow end of the discharge brick.

With the above and other objects in view which will become apparent from .the detailed description below, some preferred forms of the invention 4are shown in the drawings in which:

FIGURE 1 is a longitudinal cross section of adischarge brick inserted in the bottom of a casting ladle;

FIGURE 2 is .a cross section along line 2 2 of FIG- URE 1;

FIGURE 3 is a longitudinal section through a discharge brick placed in the bottom of a cas-ting ladle with inlets offset in height .and a lower slide lock;

FIGURE 4 is a cross section along line 4-4 of FIG- URE 3;

FIGURE 5 is a longitudinal section through a discharge brick placed in the bottom of a casting ladle with inlets extending inclined towards the central longitudinal axis of the passage and a cross shaped passage;

FIGURE 6 is .a cross :section along line 6-'6 of F-IG- URE 5.

In the various views similar reference characters indicate like parts.

The disch-arge brick 1 extends into the interior space of the casting lad-le and is placed in ra cut away brick 2. The brick 2 is a component part of .the bottom bricks 4 located on the bottom sheet 3 of the casting ladle and is arranged above the hole 5 in the bottom sheet 3. The Vertical passage 6 is provided in the form of a bore into the discharge brick 1. Inlets 7 extend from the passage 6 to the side walls of the discharge brick.

A slide lock 8 is shown in FIGURE 3 which consists of a slide face 9 and a slidable slide plate 10.

In FIGURES 3 and 4 a modification is shown wherein the discharge brick 10 extends entirely through the brick 20 and the bottom surface thereof rests upon the slide surface 9 of the valve. In this form the central vertical passage 16 is provided with the inlets 17 which are offset from one another in height. Also the inlets 17 are equidistantly spaced around the circumference of the discharge brick 1 instead of diametrically opposite one another as shown in FIGURES 1 and 2.

-In FIGURES 5 and 6 a further modification is shown wherein the discharge brick 31 is set within the brick 2 as in FIGURE 1 but the vertical passage 26 has a crossshaped cross-section'as shown particularly in FIGURE 6. Also the vertical passage 26 extends above the inlets 27 and the inlets are inclined to the vertical axis as shown.

3 This form of the invention also may be provided with a slide lock 8 as shown in FIGURE 3.

It is thought that the invention and its advantages will be understood from the foregoing description and it is apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacricing its material advantages, the forms hereinbefore described and illustrated in the drawings being merely preferred embodiments thereof.

We claim:

1. A discharge spout brick for a pouring container of casting ladles, intermediate receptacles and the like cornprising a body fixed stationarily in the bottom of said container, a substantially vertical passage in said body closed at the top towards the interior of said pouring container` and a plurality of substantially horizontal inlet conduits staggered vertically extending from said passage to the exterior of a side wall of said body opening to the interior of said container.

2. A spout brick as claimed in claim 1 wherein said passage extends vertically beyond the opening of the uppermost inlet conduit in said passage.

3. A spout brick as claimed in claim 1 wherein the 4 openings of said conduits to said passage are distributed regularly around the same.

4. A spout brick as claimed in claim 1 wherein the cross section of said passage has a geometrical form.

5. A spout brick as claimedrin claim 1 wherein the cross section of said passage has a cross-shaped form.

6. A discharge spout brick according to claim 1 wherein said inlet conduits extend slightly inclined towards the central longitudinal axis 'of said passage.

7. A spout brick as claimed in claim 1 wherein the outlet end of said passage is provided with a slide shutter.

References Cited UNITED STATES PATENTS 454,918 6/1891 Platt 222-561 506,328 10/1893 Morris 222-561 X 1,346,077 7/1920 Carter 222-566 X 1,406,746 2/ 1922 McCullough 222-566 1,488,229 3/1924- Burns 222-561 2,230,514 2/1941 Pernetzrieder Z22-566 X 2,826,793 3/1958 Flickinger et al. 222-566 SAMUEL F. COLEMAN, Primary Examiner.

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