CN1686638A - Continuous caster light mould - Google Patents

Abstract

A light crystallizer for conticaster is composed of shaped wall, flow guiding water jacket, cooling wtaer pipeline, supporting frame, electromagnetic coil for stirring, and vibrator.

Description

Continuous casting machine light mold

technical field

The invention relates to a continuous casting machine crystallizer.

technical background

Continuous casting machine crystallizer is the key equipment of modern metallurgical technology. Its function is to realize the process conversion from molten steel to billet through cooling. The water inlet and outlet pipes for crystallizer cooling are led from the crystallizer to the crystallizer supporting frame and other equipment, and communicate with the cooling water supply pipe and return water pipe. Generally, the supporting frame of the crystallizer vibrates with the crystallizer. The disadvantage is that the vibration part of the crystallizer has a large mass and requires high-power vibration driving equipment. Someone (US005676194A) divided the upper and lower flanges of the billet crystallizer into inner and outer rings, and the two rings were connected by a metal film. The mold shell, cooling water pipes, and mold support frame did not vibrate. The quality of the vibration part of the crystallizer is reduced, and its disadvantages are that the sealing problem of the crystallizer is difficult to solve, the mechanical strength is weakened, and it is difficult to manufacture and assemble.

Contents of the invention

The object of the present invention is to provide a light-weight crystallizer of continuous casting machine which can reduce the quality of the vibrating part of the crystallizer and is convenient to manufacture.

The object of the present invention is achieved in that the cooling water pipe drawn from the crystallizer comprises a section of flexible pipe, the end of the cooling water pipe connected to the crystallizer vibrates with the crystallizer, and the end connected to the support frame of the crystallizer does not vibrate.

A water inlet ring and a water outlet ring that are spaced apart from each other are set around the diversion water of the billet crystallizer.

The supporting frame of the existing slab crystallizer vibrates with the huge vibrating table below it, the vibrating mass is relatively large, and the power of the vibration driving equipment used is relatively large. Moreover, a cooling water pipeline with a vibration-avoiding throat, a quick-change table and a base of the vibration table are arranged under the vibration table, and the structure is complicated, which increases the investment cost. The present invention utilizes the deformation of the cooling water pipe containing the hose section to realize the independent vibration of the crystallizer without the vibration of the support frame, which can reduce the mass of the vibration part of the slab crystallizer whose vibration part mass is usually 30t to 15t, and the support frame itself is also It plays the role of a quick changing table of a conventional slab crystallizer and is directly installed on the base, omitting the facilities such as a vibration table and a quick changing table, and simplifying the structure of the slab crystallizer.

The existing billet crystallizer has a crystallizer shell between the upper and lower flanges around the diversion water jacket, and an inlet water tank and an outlet water tank are arranged between the shell and the diversion water jacket, and a partition is arranged therebetween. This not only increases the weight of the crystallizer, but also divides the partition between the inlet and outlet water tanks into two inner and outer rings, and the sealing problem between the two rings needs to be solved. The invention simplifies the adjacent inlet and outlet water tanks of the billet crystallizer into the inlet and outlet water rings with a distance, and the inlet and outlet water rings are connected to the non-vibrating support frame through the inlet and outlet water pipes with hose sections, which simplifies the installation of the billet crystallizer. Structure, easy to manufacture, reduce the mass of the vibrating part of the billet crystallizer whose vibrating part mass is usually 3 to 5t to 0.5t, and a non-vibrating external electromagnetic stirring coil can be installed between the inlet and outlet water rings, reducing the external The distance between the electromagnetic stirring coil and the molten steel in the crystallizer improves the efficiency of electromagnetic stirring.

Description of drawings

The present invention is shown in Figures 1 to 5.

Fig. 1 is a structural schematic diagram of a slab light crystallizer;

Fig. 2 is a sectional view of Fig. 1;

Fig. 3 is a sectional view of Fig. 2;

Fig. 4 is a structural schematic diagram of a billet light crystallizer;

FIG. 5 is a top view of FIG. 4 .

Detailed ways

A first embodiment of the present invention is shown in Figures 1-3. Cooling water flows through numerous diversion water grooves between the forming walls (copper plates) (101 and 103) of the slab light crystallizer and the diversion water jackets (support plates) (102 and 104), and cooling water flows through the diversion water grooves. The outlet is summarized as water inlet (105) and water outlet (106), which are respectively connected to the non-vibrating On the support frame (109), communicate with the cooling water supply pipe (111) and the cooling water return pipe (112) that are connected to the crystallizer base (110) of the supporting support frame (109) respectively here. The allowable deformation range of the hose sections (107a) and (108a) can ensure the long-term operation of the vibrating crystallizer under the condition that the support frame (109) does not vibrate. The diversion water jackets (support plates) (102) of the two wide sides of the slab crystallizer are fastened by fastening screws (115), and the narrow side forming wall (copper plate) (103) and the narrow side diversion water jacket ( support plate) (104) to clamp. Push-pull rods (113) and hydraulic cylinders (114) are used to adjust the width of the slab crystallizer. The balance spring (116) supports the weight of the crystallizer through the spring upper bracket (120), and the hydraulic cylinder (117) drives the crystallizer to vibrate sinusoidally or non-sinusoidally through the hydraulic cylinder upper bracket (118). The balance spring (116) and the hydraulic cylinder (117) are installed on the base (110) through the spring lower support (121) and the hydraulic cylinder lower support (119) respectively. The support frame (109) is provided with a suspension hook (122) for hoisting the crystallizer. Compared with the existing slab crystallizer, this embodiment not only reduces the quality of the vibrating part of the slab crystallizer, but also omits equipment such as a vibration table, a cooling water pipeline with a vibration-avoiding throat, and a quick replacement table.

A second embodiment of the present invention is shown in Figures 4-5. Cooling water flows between the forming wall (copper pipe) (201) and the diversion water jacket (202) of the billet light mold. A cooling water inlet ring (203) and a cooling water outlet ring (204), which are separated from each other, are arranged around the diversion water jacket (202) and between the lower flange (212) and the upper flange (211). Connect to the non-vibrating support frame (207) by the water inlet pipe (205) containing the hose section (205a) and the water outlet pipe (206) containing the hose section (206a), here respectively connected to the supporting support frame The cooling water supply pipe (209) on the base (208) of (207) communicates with the cooling water return pipe (210). The allowable deformation range of the hose sections (205a) and (206a) can ensure long-term operation of the vibrating crystallizer under the condition that the support frame (207) does not vibrate. The vibrating support composed of the rocker arm support (214) and the rocker arm (213) installed on the support frame (207) is installed on the inner arc of the billet crystallizer. The side of the rocker arm (213) extending toward the outer arc crystallizer is a yoke (213a), which is linked with the upper flange (211) of the crystallizer through a yoke seat (215). The direction of the fork arm (213a) extending to the outer arc is perpendicular to the tangent of the crystallizer vibration arc, so as to ensure the arc-like vibration of the crystallizer. The rocker arm (213) extends to the direction of the inner arc and is respectively connected with the hydraulic cylinder (216) and the balance spring (217) installed on the crystallizer base (208). The hydraulic cylinder (216) drives the billet crystallizer to vibrate sinusoidally or non-sinusoidally through the vibrating support. The support frame (207) is provided with a suspension hook (219) for hoisting the crystallizer. The electromagnetic stirring coil (218) located between the water inlet and outlet rings (203) and (204) is installed on the non-vibrating support frame (207). Compared with the existing billet mold, this embodiment reduces the quality of the vibrating part of the mold, simplifies the structure of the billet mold, is easy to manufacture, and shortens the time between the external electromagnetic stirring coil and the molten steel in the mold. The distance improves the efficiency of the electromagnetic stirring equipment.

Claims (2)

1. A light-duty crystallizer of a continuous casting machine, which is composed of a forming wall, a diversion water jacket, a cooling water pipeline and a vibration device, and is characterized in that the cooling water pipeline containing a hose section is connected to one end of the crystallizer with the crystallizer Vibration, the end connected to the crystallizer support frame does not vibrate. 2. The device according to claim 1, characterized in that a cooling water inlet ring and a cooling water outlet ring which are separated from each other are sheathed around the diversion water of the billet crystallizer.

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