SU1452635A1 - Arrangement for cooling flat products - Google Patents

Abstract

The invention relates to rolling production and is intended to cool sheets and strips during and after rolling or during heat treatment. The purpose of the invention is to increase the quality of rolled metal due to the uniform distribution of temperature across its width. The device contains a roller conveyor and collectors with nozzles located in the same or parallel planes. The collector is made of two sections. Each section is installed with the possibility of rotation relative to each other around the axes, perpendicular to the plane of the nozzles, as well as with the possibility of moving along their longitudinal axis. 1 3,; H. f-ly, 4 ill. (L with

Description

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 1452635

The invention relates to rolling mill production and is intended for cooling sheets and strips during and after rolling or during heat treatment.

The purpose of an iblock is to improve the quality of the rolled stock due to the uniform distribution of temperature across its width.

Figure 1 shows the device, a general view; in fig. 2 is a view A in FIG. in FIG. 3 a section B - B in FIG. 1; in fig 4. section R-B in FIG. 3.

The device contains a roller conveyor 1 with rollers 2; on the frame 3 of which collectors 4 are installed, made of two sections 5 and 6. One end of each section is installed in bores of crackers 7 and 8 with the possibility of displacement and fixation in them by locking screws 9, Crackers are connected to each other with axis 10 and have trunnions I1, which are put on ti gi 12, fixed 15

the component of their velocity vector is equal from the edge to the middle of the strips. The cooling intensity of the middle of the stripe increases,

Another way to vary the cooling intensity across the width of the strip is to rotate sections 5 and 6 of the collector 4 around the fingers 21. In order to increase the cooling intensity of the middle of the strip, oil is fed into the piston of the hydraulic cylinder 20, as a result of which the wedge 18 slides over the bar 15 , lifts it, ti 12 and crackers 7 and 8, which in turn raise the sections 5 and 6 of collector 4 fixed in them, ensure their rotation,

In order to increase the intensity of the cooling of the edges of the strip, oil is supplied to the rod cavity of the hydraulic cylinders 22. At the same time, sections 5 and 6 of the collector 4 are rotated around axis 10 so that the water jets are fed to the strip

with end washers 13, T gi-25 GAL ANGLE, providing directional guides in frame guides 14, are connected to each other by a strap 15 through oblique washers 16 with other nuts 17. Tee gages are equipped with a displacement mechanism made in the form of a wedge p 18 mounted in the rail 19 of the frame 3 and connected to the hydraulic cylinder 20.

The ends of the sections of the collector 4, not fixed in the nuts, using

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pins 21 are connected to rods of hydraulic cylinders 22, on the cases of which pins 23 are installed, mounted in brackets 24. Sections 5 and 6 of collectors 4 are connected to the water supply pipeline by flexible sleeves 25 and have nozzles 26 in the form of cylindrical nozzles whose axes are located in one plane, the device works as follows.

Through the sleeves 25, water is supplied to sections 5 and 6 of collector 4, which evenly flows to the strip through nozzles 26. In case of not enough cooling intensity of the middle of the strip, oil is fed into the piston cavity of hydraulic cylinders 22, the ends of sections 5 and 6 of the collector 4 located at the edges the strips are lowered, the sections 5 and 6 of the collector 4 are rotated around the axis 10 and the water jets are fed at an angle to the strip so that the horizontal

horizontal horizontal velocity of the vector of a torus from the middle to the edge of the strip.

Alternatively, the change in the intensity of cooling is supplied to the rod cavity of the hydraulic cylinder 20 and, due to the force of gravity, when the wedge 18 is extended, the crackers 7 and 8 are lowered from under the bar 15 and the ends of sections 5 and 6 fixed in them to the collector 4, ensuring their rotation around fingers 21 due to this increase in the intensity of cooling of the edges of the strip.

In this construction, it is possible to carry out a general change in intensity without cooling it without changing it along the strip, for which, using the hydraulic cylinders 20 and 22, the opposite ends of sections 5 and 6 of the collector 4 move along the vertical axis by the same amount,

If it is necessary to increase the intensity of cooling of one edge as compared to the other (temperature skewing across the strip width), the ends of sections 5 and 6 of collector 4, located along the edges of the roller table 2, are moved to different sizes, or even in opposite directions ( one up and the other down).

Turning sections 5 and 6 of collector 4 changes the distance between

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the component of their velocity vector is directed from the edge to the middle of the strip. The cooling intensity of the middle of the band increases,

Another way to vary the cooling intensity across the width of the strip is to rotate sections 5 and 6 of the collector 4 around the fingers 21. In order to increase the cooling intensity of the middle of the strip, oil is pumped into the piston cavity of the hydraulic cylinder 20, as a result of which the wedge 18 slides under the bar 15, raises it, 12 and crackers 7 and 8, which in turn raise the sections 5 and 6 of collector 4 fixed in them, ensuring their rotation,

In order to increase the cooling intensity of the edges of the strip, oil is supplied to the rod cavity of the hydraulic cylinders 22. At the same time, sections 5 and 6 of the collector 4 are rotated around axis 10 so that the water jets are fed to the strip

5 OD ANGLE, providing directional blind

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horizontal horizontal velocity of the vector of their velocity from the middle to the edge of the strip.

Alternatively, the change in the intensity of cooling is supplied to the rod cavity of the hydraulic cylinder 20 and, due to the force of gravity, when the wedge 18 is extended, the crackers 7 and 8 are lowered from under the bar 15 and the ends of sections 5 and 6 fixed in them to the collector 4, ensuring their rotation around fingers 21 due to this increase in the intensity of cooling of the edges of the strip.

In this construction it is possible to carry out a general change in intensity without cooling it without changing it along the strip, for which, using the hydraulic cylinders 20 and 22, the opposite ends of sections 5 and 6 of the collector 4 are moved along the vertical axis by the same amount

If it is necessary to increase the intensity of cooling of one edge as compared to the other (temperature skewing across the strip width), the ends of sections 5 and 6 of collector 4, located along the edges of the roller table 2, are moved to different sizes, or even in opposite directions ( one up and the other down).

Turning sections 5 and 6 of collector 4 changes the distance between

the points of impact of water streams with a strip in its middle. To regulate this distance and intensity of cooling, axial movement of sections 5 and 6 of collector 4 in bores of crackers 7 and 8 is provided in the center of the strip, followed by fixing them with a stopper 9. Such an embodiment of the device improves the uniformity of cooling in the center of polo; s.

The use of the proposed device allows for a change in the intensity of cooling across the width of the strip, both symmetrical and asymmetrical with respect to the center of the strip, thereby improving the quality of the rolled products.

Claims (1)

1. A device for cooling flat products containing a roller table, Collectors with nozzles located in the same or parallel planes are installed on the frame, which is due to the fact that, in order to improve the quality of rolled products due to uniform temperature distribution across its width, the collector is made of two sections that are installed with the possibility of turning one relative to another around axes perpendicular to the plane of the nozzles, 2, Device POP.1, characterized in that the collector sections are mounted with a possibility of movement along their longitudinal axis. Strip dL. 8idA 18 AT .