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Injecting devices for emulsified liquid of eighteen-roller cold-rolling mill and application thereof

A technology of spray device and emulsion, applied in workpiece cooling device, workpiece lubricating device, roll, etc., can solve the problems of poor effect of lubrication and cooling of roll gap, affecting the surface quality of strip steel, etc., so as to improve lubrication and cooling effect, improve Rolling speed, the effect of improving control accuracy

Active Publication Date: 2016-03-09
WISDRI ENG & RES INC LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem that the effect of lubricating and cooling the roll gap in the existing 18-high cold rolling mill is not good and affects the surface quality of the strip steel

Method used

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  • Injecting devices for emulsified liquid of eighteen-roller cold-rolling mill and application thereof
  • Injecting devices for emulsified liquid of eighteen-roller cold-rolling mill and application thereof
  • Injecting devices for emulsified liquid of eighteen-roller cold-rolling mill and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In order to overcome the problems that the effect of lubricating and cooling the roll gap in the existing 18-high cold rolling mill is not good, and the side support rolls cannot be cooled, which affects the surface quality of the strip, the present embodiment provides a method such as figure 2 , image 3 The eighteen-high cold rolling mill emulsion spraying device shown includes four side support frames 2 respectively arranged on four side support beams 3, and each side support frame 2 is provided with an upper backing bearing roll 6, a side support Support rolls 7 and lower backing bearing rolls 8, and work rolls 18 symmetrically arranged up and down the steel belt 5 between side support frames 2, each of which is close to the side support rolls 7 and the lower backing bearing rolls 8 position is provided with a second spray device 9, the second spray device 9 includes a spray beam 12 and a number of nozzles 10 and a number of nozzles 2 11 installed along the length ...

Embodiment 2

[0028] On the basis of Example 1, in order to make the emulsion sprayed by the second spray device 9 on the strip steel 5 and the side support rolls 7 at the work roll gap more uniform, the lubrication and cooling effect is better, such as image 3 and Figure 4 As shown, the spray beam 12 spans the side support frame 2 , and both ends of the spray beam 12 are fixed on both ends of the side support frame 2 , and the length direction of the spray beam 12 is parallel to the roller body of the side support roller 7 . A number of nozzles 10 are distributed in a row on the spray beam 12, a number of nozzles 2 11 are distributed in a row on the spray beam 12, and the nozzle one 10 and the nozzle two 11 form a 90° angle with each other. The first nozzles 10 and the second nozzles 11 are alternately distributed on the spray beam 12 , and the distance between every two adjacent nozzles 10 and every two adjacent nozzles 11 is 40-60 mm. The included angle between the second nozzle 11 an...

Embodiment 3

[0030] On the basis of the above-mentioned embodiment, as Figure 4 As shown, this embodiment provides an application of an emulsion injection device for an 18-roll cold rolling mill. The injection beam 12 is a hollow cylinder structure, one end of which is open and the other end is closed. The outer diameter of the hollow cylinder is 30 mm. The inner diameter is 20mm, and one end of the opening of the spray beam 12 on each side support frame 2 is connected to the emulsion pipeline 15. The emulsion pipeline 15 is provided with a flow control valve 13, a flow sensor 14, a pressure control valve 16 and a pressure control valve 15. The sensor 17 controls the flow rate of the emulsion flowing into each spray beam 12 through the flow control valve 13 and the flow sensor 14. The pressure control valve 16 and the pressure sensor 17 control the spray pressure of the nozzle one 10 and the nozzle two 11 on each spray beam 12 .

[0031] Wherein, the flow rate of the spray beam 12 on eac...

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Abstract

The invention provides injecting devices for emulsified liquid of an eighteen-roller cold-rolling mill. The injecting devices comprise four side supporting frames. The side supporting frames are each provided with an upper backing bearing roller, a side supporting roller and a lower backing bearing roller. A second injecting device is arranged in the position, close to each side supporting roller and each lower backing bearing roller, of each side supporting frame. The second injecting devices comprise injecting beams, a plurality of first nozzles and a plurality of second nozzles, wherein the multiple first nozzles and the multiple second nozzles are installed in the length direction of the injecting beams, the first nozzles face towards the side supporting rollers, and the second nozzles face towards the roller seams of working rollers. According to the injecting devices, the second injecting devices are arranged on the side supporting frames on the basis of unchanging original first injecting devices on side supporting beams, the emulsified liquid is injected into strip steel in the position of the roller seams and the side supporting rollers simultaneously through the second injecting devices, so the lubricating cooling effect of the strip steel in the position of the roller seams is improved, and thus the rolling speed is improved, the rolling energy consumption is reduced, and the surface quality of the strip steel is improved; meanwhile, the side supporting rollers are further cooled, and hence the control precision of the strip shape of the strip steel is improved.

Description

technical field [0001] The invention belongs to the technical field of cold-rolled strip steel equipment, and in particular relates to an emulsion spraying device for an eighteen-roll cold rolling mill and its application. Background technique [0002] In the existing 18-high cold rolling mill, spray beams and nozzles are arranged in the support beams 3 on the inlet and outlet sides, which are used to spray emulsion to lubricate and cool the strip steel during cold rolling; such as figure 1 As shown, it includes a frame 1, 4 side support frames 2, 4 side support beams 3 and a first spray device 4; Three first spraying devices 4 are arranged in each side support beam 3, each first spraying device 4 includes a spraying beam and a row of nozzles, the spraying beams are arranged along the width direction of the strip steel 5, and the nozzles on the spraying beam are directed to the strip steel 5 Spray the emulsion on. [0003] However, the existing spray beams and nozzles arra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B45/02B21B27/10
CPCB21B27/10B21B45/0233B21B45/0251B21B2027/103
Inventor 陈全忠
Owner WISDRI ENG & RES INC LTD
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