SU1225679A1 - Apparatus for measuring metal level in open mould of continuous casting unit - Google Patents

Description

The invention relates to metallurgy, namely to continuous casting of metal, and is an improvement of the known device but author. St. No. 1125096.

The purpose of the invention is to improve the quality of the metal by making measurement accuracy.

FIG. 1 shows the functional unit schema; in fig. 2 shows an embodiment of the device, where the second two-armed lever has a Z-shape.

The device contains a source of gas stabilized flow, hydraulic nozzles 2, first and second 4 two shoulders levers, a connecting rod 5 parallel to the first two shoulders lever, fixed racks 6 and 7, a balancing weight 8, gauge 9 of the two arm movements, the recording device 10. And the length of the connecting rod equals the distance from the hinge linking the two shoulders to the fixed hinge 6, on which the first two shoulders is attached.

The device works as follows.

From a source of gas of a stabilized flow rate, gas, preferably argon, enters the hydraulic nozzle 2 and creates a gas cushion between the nozzle and the surface of the metal 11. The size of the gap between the nozzle and the metal surface with a stabilized gas flow can be adjusted by the balancing weight 8. With a constant weight of the balancing weight and its constant position relative to the rack 6, the specified gap varies slightly. So the guide

The horizontal nozzle 2 follows the surface of the metal 1. A second two-arm lever 4 which is rigidly connected to the hydraulic nozzle 2 and the second two-arm lever 4 expands the first two-arm lever 3 relative to the fixed post 6 and HI atn 5 relative to the fixed stand 7. The second two-armed arm 4 is always vertical. The amount of movement of the first two shoulders lever 3 is measured by the meter 9 and transmits the corresponding signal to the recording device 10.

Example. The described device is mounted to measure the level of the metal in the crystallizer of the continuous metal casting installation on the upper casting platform. The double-shouldered lever, having a Z-shape, is made in the form of a pipe, to which a flexible pipeline is connected to supply compressed gas. Argon is used as gas. For a connecting rod, it is equal to the length of the second two-armed lever to a fixed rack, li 1.1 m. Attitude:; Ez: L 11: 4; 1. The weight of the balancing weight 25H. Argon consumption is maintained at 5 ,. At some point in time, the metal level decreases by 0.01 m. In this case

The z-shaped double-arm lever is lowered vertically downwards. The deviation from the vertical direction is 2 mm. The second two shoulders, piji4ar and H1atun, rotate around fixed axes, while remaining parallel to each other. The recording device will record the meter signal about the change in the position of the levers.

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FIG. 2

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Claims (2)

1. DEVICE FOR MEASURING THE METAL LEVEL IN THE CRYSTALIZER OF THE INSTALLATION OF CONTINUOUS METAL FILLING by ed. St. No. 1125096, characterized in that, in order to improve the quality of the metal by increasing the accuracy of the measurement, it further comprises a connecting rod pivotally mounted on a stationary stand parallel to the two-arm lever, as well as a second two-arm lever pivotally connected to the connecting rod, which is pivotally mounted on the second end the first two-shouldered lever, and the length of the connecting rod is equal to the distance from the hinge connecting the two-arm levers to the fixed hinge on which the first two-shouldered lever is mounted, and the hydraulic nozzle is rigidly connected to the other end of the second two-shouldered lever. 2. The device according to π. 1, characterized in that the second two-arm lever has a Z- _about different shape. F go go SP 05 СО ψεί2. 1