RU2044581C1 - Casting-rolling complex - Google Patents

Abstract

FIELD: metallurgy. SUBSTANCE: casting-rolling complex has continuous steel casting machines with crystallizers arranged in fan-like manner and converging towards rolling equipment line. Transfer device in the form of furnace or thermostat is positioned for rotation between casting and rolling equipment. Complex may be further equipped with auxiliary transfer device or additional rolling line. EFFECT: increased efficiency of complex by reduced time for transfer of billets from furnaces to rolling line, compact arrangement of equipment and enhanced reliability in operation. 4 cl, 9 dwg

Description

 The invention relates to metallurgy, and in particular to equipment for the production of sheet metal, and can be used as a unit for producing sheets by combining casting of blanks and their subsequent rolling.

 The aim of the invention is to increase the productivity of the casting and rolling complex by reducing the time for transferring billets from furnaces to the rolling mill and saving production space due to a more compact placement of equipment; simplification of the transmitting device, expanding the capabilities in the placement of equipment, layout of various options for its location, as well as expanding the assortment.

 In FIG. 1 shows the layout of the equipment of the casting and rolling complex (LPC) in plan with a rotary transmitting device; figure 2 view a in figure 1; figure 3 diagram of the forestry complex in plan with a rotating transmitting device with reverse output; figure 4 LPK with the direct issuance of the strip from the transmitting device; figure 5 diagram of the timber industry plan with an additional transmitting device and the location of CCM on both sides of the rolling mill with the same direction of casting and rolling; Fig.6 is the same with the transverse direction of the casting with respect to the direction of rolling; 7 is a diagram of the timber complex in plan with a Stekkel rolling mill; on Fig diagram of the timber complex in plan with rolling machines and unwinder; Fig.9 section BB in Fig.8.

 The casting and rolling set contains a number of continuous casting machines (CCM) 1, which can be either single-strand or multi-strand. Caster molds are located next to each other and oriented in the same direction. The axes of adjacent crystallizers form an acute angle between themselves in terms of. The angle α may not be equal to the angle β (for example, for different CCMs). Scissors 2 and a heating furnace 3 are located after each CCM mold. After the furnaces, a transmitting device 4 is installed, which is either a furnace or a thermostat equipped with a displacement drive (not shown conventionally) along the rails 5. The most common type of drive is an electric drive to the impellers. Additionally, the transmitting device is equipped with a rotation drive (not shown conditionally) relative to, for example, point 0. It can be either hydraulic or electric. Behind the transmission device, a rolling mill 6 is placed, for example, broadband, plate mill, Stekkel mill, etc. with appropriate equipment (figure 1, 2 shows a broadband mill).

 The woodworking equipment can be placed in such a way that the axis of the continuous casting machine molds in the plan and the axis of the rolling mill intersect at one point C (Figs. 3 and 4), and the transmitting device is installed with the possibility of rotational movement relative to this point. In this case, it is possible to issue blanks from the transmitting device in the opposite direction (Fig. 3) and in the forward direction (Fig. 4). The woodworking complex can be equipped with an additional transmitting device 7, while the continuous casting machine, scissors and heating furnaces are installed on both sides of the rolling mill (Fig. 5, 6). The direction of casting and rolling in this case can be the same (Fig. 2, 5) or the direction of rolling can be close to perpendicular to the casting direction (Fig. 6). The woodworking complex can be equipped with an additional rolling mill 8 with a rolling axis passing through the point of intersection of the axes of the continuous casting machine molds in the plan (Fig. 7). The woodworking equipment may additionally contain rolling machines 9 after the heating furnaces and an unwinder 10 in front of the rolling mill (Fig. 8 and 9). In this case, the transfer device 4 for rolls has a slightly different design compared to the device for moving sheets. It can also be performed without a heat insulating casing.

 The device operates as follows.

 On CCM 1, blanks are poured into several molds, for example, in the form of slabs, which, after cutting the front end on scissors 2, enter the heating furnaces 3 (Figs. 1 and 2). Billets during the casting process can be cut into pieces. As it warms up, the workpiece is loaded into the transfer device 4, with which it moves across the casting direction by turning it relative to point 0 until it coincides with the axis of the rolling mill. The design of the woodworking complex in this case allows, in comparison with the known structures, to reduce the transfer time of the workpieces from the casting line to the rolling line, which can significantly increase the productivity of the entire complex. In this case, due to the location of the axes of the molds in the plan at an acute angle, space is freed up for placing other equipment.

 In the case of the intersection of the axes of the molds of the continuous casting machine in the plan and the axis of the rolling mill at one point (Figs. 3, 4), when transferring the workpiece, a simple rotational movement relative to point C is performed. This greatly simplifies the drive of the transmission device, which can be carried out with idle wheels, for example, with the help of hydraulic cylinders, which will increase the durability of the wheels.

 Additionally, the possibilities of using various layouts of the complex are expanding, for example, with the return delivery of blanks from the transmitting device (Fig. 3), with direct delivery (Fig. 4). The line of the rolling mill can be located to the molds at any angle.

 When using an additional transmitting device 7 with the location of the continuous casting machine and furnaces on both sides of the rolling mill line (Figs. 5, 6), there is an additional opportunity to reduce the time for moving the workpieces (while rolling from one device, the cast billet from the furnace 2 can enter the other device ), the path traveled by the device is also reduced, which means to increase productivity. At the same time, expanding capabilities in the layout of various options for the location of the equipment of the complex (Fig.6).

 The installation of an additional rolling mill 8 with a rolling axis passing through the intersection point of the continuous casting molds leads to an additional possibility of expanding the manufactured strip assortment (in Fig. 7, one of the mills is shown as broadband and the other is a Stekkel mill), as well as an additional increase in the complex productivity.

 If the complex is equipped with rolling machines 9 and an unwinder 10 (Fig. 8, 9), then after heating in the furnace 2, the strip is rolled up into a roll, transferred to a transfer device 4, transferred to a roll to the unwinder and then rolled in the mill stands. It is also possible to work without an unwinder. This allows us to obtain, after rolling, rolls of greater mass, and therefore higher productivity, since the dimensions of the transmission devices in the form of a platform transporting the strip in expanded form are limited.

 Thus, the proposed design of the timber complex allows to achieve a significant increase in the productivity of the complex, to increase its compactness, to expand the possibilities for placement of the aggregates of the complex in relation to the existing layout of metallurgical plants, and to increase the variety of the manufactured assortment.

Claims (4)

 1. CASTING AND ROLLING COMPLEX, comprising at least two continuous casting machines (CCM) with adjacent molds in one direction, scissors and heating furnaces installed after each mold, located behind them in the form of a furnace (thermostat), equipped with a moving drive, after which a rolling mill is installed, characterized in that, in order to increase productivity by reducing the transfer time of workpieces from furnaces to the rolling mill and saving oizvodstvennyh areas due to a more compact arrangement of equipment, the axes of adjacent caster mold form between them an acute angle in the plane, and the transmitting device is installed rotatably in a horizontal plane.  2. The complex according to claim 1, characterized in that, in order to simplify the transmitting device and expand the possibilities for placing equipment, the axis of the molds and the rolling mill intersect at one point, which is the center of rotation of the transmitting device.  3. The complex according to claims 1 and 2, characterized in that, in order to increase productivity by increasing maneuverability when transferring workpieces and expanding the layout options of various equipment location options, it is equipped with an additional transmission device, and CCMs, scissors and heating furnaces are installed in both sides of the rolling mill.  4. The complex according to claims 2 and 3, characterized in that, in order to expand the range and increase productivity, it is equipped with an additional rolling mill with an axis passing through the point of intersection of the axes of the molds.

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