RU188137U1 - DISTRIBUTOR FOR INSTALLATION IN THE CRYSTALIZER - Google Patents

Abstract

A separator (3) is proposed for installation in a mold (1) having two mold walls (5, 6) located at a distance from each other, between which the mold inner space (7) is located for passing the melt. The separator (3) contains a separation block (9) with two outer surfaces (11, 12) for dividing the inner space (7) of the mold into two subspaces, which are separated from each other by these outer surfaces (11, 12) of the separation block (9), and at least one cooling channel (55) extending in the separation unit (9) for cooling liquid, for cooling at least one outer surface (11, 12). 5 ill.

Description

This solution relates to a separator for installation in a mold.

In continuous casting plants, the metal melt is poured into a cooled mold, in which crystallization of the melt begins. Inside the interior of the mold, the surface regions of the melt crystallize into the so-called surface layer of the preform, which surrounds the still liquid core metal. A metal preform having this surface layer is drawn from the mold, which is then further cooled. By a separator is meant a device that divides the mold into two subspaces, in each of which a blank of reduced width can be created, so that two blanks can be pulled out of the mold, in particular, at the same time.

U.S. Pat. No. 4,637,452 A discloses a divider mounted in the mold, which is substantially T-shaped with a cross-section and a central section that extends from the middle of the cross-section. After installation in the mold, the central portion divides the inner space of the mold, and the section of the crossbar is adjacent to the upper sides of the opposite walls of the mold, between which is the inner space of the mold.

The disadvantage here is that the installation of the separator in the mold and, accordingly, the removal of the separator from the mold cannot be carried out in the mold state integrated in the continuous casting plant, and the mold must first be removed from the continuous casting plant and placed in the maintenance area, installation is carried out there ( installation or, accordingly, removal) of a separator, and only then this remounted mold is mounted again on a continuous decomposition unit willow. This means that such an installation of the separator requires time, during which the continuous casting plant cannot work, resulting in reduced productivity. Especially negative is the costly installation with the so-called “top feeding” of the seed in the continuous casting plant, i.e. when introducing seeds into the mold from above (from the side of the mold gate). According to the prior art, “top loading” is not possible in molds with a separator, so this seed must always be introduced into the mold from the bottom (from the outlet side of the mold) before casting starts; this is the so-called “bottom feeding”.

The basis of this utility model is the task of creating an improved separator for installation in the mold. In particular, the so-called “top loading” into the mold with an inserted separator should be possible.

This task according to this decision is solved by the signs of an independent paragraph 1.

Preferred embodiments of the utility model are the subject of the dependent claims of the utility model.

The separator proposed by the utility model is intended for installation in a mold, which has two mold walls located at a distance from each other, between which there is an inner mold space for transmitting the melt. The separator comprises a separation unit with two outer surfaces for dividing the inner space of the mold into two subspaces that are separated from each other by these external surfaces of the separation unit, and at least one cooling channel for the cooling liquid passing in the separation unit for cooling at least one outer surface.

The proposed solution makes it possible to preferably quickly install into the mold and, accordingly, remove the separator from the mold from above, i.e. on the side of the mold gate, said at least one cooling channel passing in the separation unit for primary cooling of the melt cast into the mold serves to form a surface layer of a workpiece obtained from this melt from the separation unit side.

Thanks to the proposed separator, it is possible to install and remove the separator when the mold is integrated in the continuous casting unit. In addition, thanks to the cooling channels, uniform cooling of the surface layer of the workpiece is ensured, which has a very positive effect on the quality of the workpiece, and the risk of casting breakthroughs is greatly reduced.

One embodiment of the utility model provides that the separation unit has two separator plates located opposite each other, each of which forms one of both outer surfaces of the separation unit, and one central portion located between the separator plates that is connected to both separator plates. The central portion of the separation unit has, for example, two support plates connected to each other, the first support plate being connected to the first separator plate and the second supporting plate connected to the second separator plate. Due to this embodiment of the separation unit, additional components, in particular cooling lines, can preferably be arranged in the central portion of the separation unit.

Preferably, a cooling channel also extends in each base plate and in the separator plate connected to the base plate. Due to this, both outer surfaces of the separation unit can be independently cooled by means of respective cooling channels. Due to the formation of separate cooling channels in combination with a flow sensor, respectively, with a pressure sensor, it is possible, for example, to simply determine whether the cooling channel is clogged or if it has at least an increased flow resistance. This information can be provided to maintenance personnel, so that the problem of interrupting the casting process can be eliminated.

Another embodiment of this utility model provides for the presence of a locking element connected to the first end of the separation block, which, after installing the separator in the mold, is adjacent to both walls of the mold. Preferably, this fixing element has at least one inlet passage extending therein for supplying coolant to at least one cooling channel and at least one outlet passage passing in the fixing element for withdrawing coolant from the at least one cooling channel. In addition, preferably provided is at least one connection with a screw clamp for locking the locking element with the wall of the mold. Using the fixing element, the separator can be fixed in the mold and rest on the walls of the mold. Due to the inlet and outlet passages passing through the locking element for at least one cooling channel, this locking element can be used preferably for supplying cooling liquid to the at least one cooling channel.

Another embodiment of this utility model provides for a clamping wedge to support the separation unit on the mold wall. Due to this, the position of the separator can be fixed when the separator is fixed to the mold wall.

Another embodiment of this utility model provides for the presence of at least one clamping piston conducted through an opening in the mold wall, which, with the aid of a hydraulic, pneumatic, or electromechanical drive, can move along its longitudinal axis to and from the separation unit, and with its help clamping force may be exerted on the separation unit. In addition, a clamping rod can be provided, for example, which can be moved through this recess in the clamping piston in the at least one clamping piston. This embodiment preferably makes it possible to detachably clamp the separator in the mold using at least one clamping piston. This is preferable, in particular, for large-format flat billets, since according to the prior art, the wide sides bend, and as a result a gap may form between the separator and at least one wide side, so that the melt can enter this gap and, accordingly, exit from the mold cavity. This is reliably prevented by the proposed design.

Another embodiment of this utility model provides for the presence of a workpiece direction block that is adjacent to the second end of the separation block and contains guide rollers for the workpiece designed to guide workpieces emerging from the mold. This makes possible preferably the lateral direction of the workpieces withdrawn from the mold through the separator.

Another embodiment of this utility model provides for at least one cooling line extending between the two outer surfaces of the separation unit for passing coolant to the workpiece guiding unit. Preferably, the locking element for each cooling line has a connecting line connected to this cooling line for supplying the cooling liquid to the cooling line. These cooling lines preferably allow secondary cooling of the workpieces discharged from the mold by discharging coolant to these workpieces in the area of the workpiece guiding unit, the coolant being discharged, for example, through spray nozzles, each of which is located above the workpiece guide rollers. Due to the placement of a connecting line on the fixing element for each cooling line, this fixing element is also preferably used for supplying coolant to each cooling line.

Another embodiment of this utility model provides for the presence of temperature sensors to determine the temperature of both outer surfaces of the separation unit. Due to this, it is possible to control the temperature of both outer surfaces of the separation unit, the values of which differ, in particular, for the formation of the surface layers of the workpiece on these outer surfaces.

The above-described properties, features and advantages of this utility model, as well as the method of their provision, are explained in more detail in the following description of exemplary embodiments using the attached drawings. The drawings show the following.

FIG. 1 perspective view of the mold and the separator integrated into the mold,

FIG. 2 is a perspective view of a first side of FIG. 1 mold and a separator integrated into the mold,

FIG. 3 is a perspective view of a second side of FIG. 1 mold and a separator integrated into the mold,

FIG. 4 is a sectional view of FIG. 1 mold and a separator integrated in the mold, and

FIG. 5 is a perspective view of FIG. 1 mold and a separator integrated in the mold in the area of two hydraulic cylinders.

The parts corresponding to each other in all the figures are provided with the same reference numbers.

In FIG. 1 shows a perspective view of the mold 1 and the separator 3 integrated in the mold 1.

The mold 1 has crystallizer walls 5, 6 located at a distance from each other and parallel to each other, between which there is an inner mold space 7 for transmitting the melt.

The separator 3 comprises a separation unit 9 with two outer surfaces 11, 12 for dividing the inner space 7 of the mold into two subspaces, which are separated from each other by the outer surfaces 11, 12 of the separation unit 9, and in FIG. 1, only the first outer surface 11 is visible. In addition, the separator 3 comprises a locking element 10 connected to the first end of the separation unit 9, which, after installing the separator 3 in the mold 1, abuts against the upper sides of both mold walls 5, 6 and, in the embodiment shown, stands for their sides facing away from the inner space 7 of the mold. The locking element 10 is connected to the separation unit 9, for example, by screw connections. The outer surfaces 11, 12 on both sides of the separation unit 9 form one injection cone to compensate for the shrinkage of the workpiece formed in the mold 1 during passage of the mold 1. The outer surfaces 11, 12 are thus made not plane-parallel, but have a gap between them increasing along as the distance from the locking element 10 increases.

On the narrow sides of the mold 1 lying outside, opposite the outer surfaces 11, 12 of the separation unit 9, the inner space 7 of the mold is closed in a known manner not shown in FIG. 1 by the side walls, each of which can preferably be moved to the separation block 9 and from the separation block 9 so that it is possible to produce blanks of different widths.

In FIG. 2 is a perspective view of that side of FIG. 1 of the mold 1, which contains the first wall 5 of the mold, as well as the separator 3 integrated in the mold 1.

In FIG. 3 shows a perspective view of the side of the mold shown in FIG. 1 of the mold 1, as well as the separator 3 integrated in the mold 1.

In FIG. 4 is a sectional view of those shown in FIG. 1 mold 1 and a separator 3 integrated in the mold 1.

The separation unit 9 comprises two opposite separator plates 13, 14, each of which forms one of both outer surfaces 11, 12 of the separation unit 9, and a central portion 15 located between the separator plates 13, 14, which is connected to both plates 13, 14 separators. The separator plates 13, 14 are made, for example, in the form of copper plates. The central portion 15 of the separation unit 9 has two support plates 17, 18 connected to each other, the first support plate 17 being connected, for example, by screw connections to the first separator plate 13, and the second support plate 18, for example, by screw connections being connected to the second separator plate 14. If necessary, temperature sensors, for example, thermocouples to determine the temperature of both plates 13, 14 of the separator, can be installed on the separation unit 9.

The base plates 17, 18 are connected by screw connections to each other on two opposite sides 19, 20 of the walls of the separation unit 9, each of which faces one wall 5, 6 of the mold. These screw connections contain (not shown in the drawings) screws, each of which passes through the holes 21 in two corresponding connecting nozzles 23, 24, which on the respective sides 19, 20 of the walls protrude from the base plates 17, 18 to the corresponding walls 5 , 6 crystallizers.

The separator 3 is fixed in the mold 1 by means of a lock. On the side of the first mold wall 5 for locking, a clamping wedge 25 is placed between the first mold wall 5 and the support plates 17, 18, and the locking element 10 is connected to the first mold wall 5 by connecting 27 with screw clamps. On the side of the second mold wall 6, the separation unit 9 can be detachably connected to two clamping pistons 31 through two clamping piston slots 29 located in the support plates 17, 18. Each clamping piston 31 passes through an opening 33 in the second mold wall 6 into one of both sockets 29 for clamping pistons and using a hydraulic cylinder 35 is driven along its longitudinal axis. In alternative embodiments of the utility model, instead of hydraulic cylinders 35, other clamping piston drive systems 31 may be used, such as pneumatic or electromechanical drives. In addition, the separator 3 includes a clamping rod 39, which moves through the recess 51 in the locking element 10, the recesses 52 of the clamping piston 31 and the recess 53 in the clamping piston slots in the clamping piston slots 29.

The separator 3 further comprises two cooling lines 41, 42 extending between both outer surfaces 11, 12 of the separation unit 9, the first cooling line 41 being a cooling pipe that extends along the first side 19 of the wall of the separation unit 9 facing the first the wall 5 of the mold, and the second cooling line 42 is a cooling pipe, which runs along the second side 20 of the wall of the separation unit 9, facing the second wall 6 of the mold. Long sleeves or pipes can be screwed onto these cooling pipes from above (not shown), which allow the separator 3 to be pulled so far from the mold 1 that it can deviate to the side from the mold 1 without having to remove the mold 1 from the continuous casting unit.

The locking element 10 for each cooling line 41, 42 contains a connecting line 43, 44 connected to this cooling line 41, 42 for supplying cooling fluid to the cooling line 41, 42.

In addition, the separator 3 comprises a workpiece guiding unit 45, which is adjacent to the second end of the separating block 9, facing away from the fixing element 10, and contains several guide rollers 47 for the workpieces intended for guiding the workpieces discharged from the mold 1. Each cooling line 41, 42 extends from the fixing element 10 to the workpiece guiding unit 45 and is designed to discharge coolant to this workpiece guiding unit 45.

To supply lubricants for the roller bearings of the guide rollers 47 for the workpieces, it is possible, similarly to supplying coolant to the workpiece guiding unit 45, to provide at least one (not shown) lubricant line that runs on the separation unit 9 or in the separation unit 9 from the locking element 10 to the block 45 of the direction of the workpiece.

Each wall 5, 6 of the mold in the direction of both sides of the separation block 9 from the side of the inner space 7 of the mold is lined with a panel 49, which extends from the separation block 9 to the end of the wall 5, 6 of the mold.

In each base plate 17, 18 and a separator plate 13, 14 connected to the base plate 17, 18, a cooling channel 55 for coolant passes, which provides cooling for the separator plates 13, 14. Each cooling channel 55 is connected to an inlet passage 57 passing in the fixing element 10 for supplying cooling liquid to the cooling channel 55 and to an exhaust passage 59 passing in the fixing element 10 for draining the cooling liquid from the cooling channel 55. The fixing element 10 for each inlet channel 57 has an inlet 61, and for each outlet 59, an outlet 63. The inlets 61 and the outlets 63 in the embodiment shown in these figures are located on the lower side of the fixing element 10 (see Fig. 5), but in other examples of execution can be located on the upper side of the locking element 10 or on the side. Each cooling channel 55 extends, for example, from the inlet channel 57 connected to it, first to the corresponding base plate 17, 18 down in the direction of the workpiece guiding unit 45, then from the base plates 17, 18 to the plates 13, 14 connected to the base plates 17, 18 the separator, then in the plates 13, 14 of the separator upward in the direction of the locking element 10 and, finally, in the base plates 17, 18 to the outlet channel 59 connected to the cooling channel 55 in the locking element 10.

In FIG. 5 is a perspective view of FIG. 1 of the mold 1 and the separator 3 integrated in the mold 1 in the region of the hydraulic cylinders 35 and the outlet openings 63 of the outlet channels 59.

The separator 3 is built into the mold 1 from above. In this case, the separator 3 is first inserted into the mold 1 without the clamping rod 39, pressed against the first side 19 of the wall by means of the clamping wedge 25, and is fixed to the first wall 5 of the mold by means of connections 27 with screw clamps. After that, each clamping piston 31 under reduced pressure moves in a controlled manner to the separator 3 in the seats 29 for the clamping pistons. Then, the clamping rod 39 is inserted from above, and then the clamping pistons 31 are controlled to move slightly under reduced pressure in the other direction, until the clamping rod 39 is clamped in the recesses 52 of the clamping piston.

To remove the separator 3 from the mold 1, the operations are carried out in the reverse order. First, the pressure of the clamping pistons 31 on the clamping rod 39 is relaxed by a short movement of the clamping pistons 31, so that the clamping rod 39 can be removed. After removing the clamping rod 39, the clamping pistons 31 are withdrawn from the separator 3. After that, the separator 3 rises up from the mold 1.

Although the present solution is explained in more detail in the preferred examples, however, it is not limited to the described examples, and the specialist can deduce from them other options without going beyond the scope of protection of the utility model.

Reference List

1 mold

3 divider

5, 6 wall of the mold

7 inner space of the mold

9 separation block

10 fixing element

11, 12 outer surface

13, 14 separator plate

15 central section

17, 18 base plate

19, 20 side of the wall

21 holes

23, 24 connecting spout

25 clamping wedge

27 screw connection

29 socket for clamping piston

31 clamping piston

33 hole in the wall of the mold

35 hydraulic cylinder

39 clamping rod

41, 42 cooling line

43, 44 connecting line

45 block direction of the workpiece

47 guide rollers for workpieces

49 panel

51 recess in the locking element

52 recess clamping piston

53 recess in the seat of the clamping piston

55 cooling channel

57 inlet

59 exhaust channel

61 inlet

63 outlet

Claims (4)

1. The separator (3) for the mold (1) of the continuous casting installation, having two walls (5, 6) located at a distance from each other, and between which is located the inner space (7) of the mold for passing the melt, containing a separation unit (9 ) for dividing the inner space of the mold into two subspaces, separated from each other by the outer surfaces (11, 12) of the separation unit, formed by two opposite plates of the separator (13, 14) and the central separator located between them section (15), and cooling channels (55) for coolant passing in the separation unit (9) for cooling its outer surfaces (11, 12), characterized in that it contains a clamping piston (31) passing through the hole ( 33) in the wall (5, 6) of the mold, and which is arranged to move along its longitudinal axis to the separation unit (9) to exert a clamping force on it, and a fixing element (10) connected to the first end of the separation unit (9) with the ability to fit to both walls (5, 6) and after installing the separator in it. 2. The separator (3) according to claim 1, characterized in that the central portion (15) of the separation unit (9) is two support plates (17, 18) connected to each other, the first support plate (17) being connected to the first the separator plate (13), and the second base plate (18) is connected to the second separator plate (14). 3. The separator (3) according to claim 2, characterized in that the cooling channel (55) passes in each base plate (17, 18) of the central portion (15) and the separator plate (13, 14) connected to it. 4. The separator (3) according to claim 1, characterized in that a hydraulic, pneumatic or electromechanical piston drive is used.

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