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An eighteen-high cold rolling mill emulsion injection device and its application

A technology of spraying device and emulsion, which is applied in the direction of workpiece cooling device, workpiece lubricating device, roll, etc., can solve the problems of poor lubrication and cooling effect of the roll gap and affect the surface quality of the strip steel, so as to improve the lubrication and cooling effect and improve the Effect of improving rolling speed and improving control precision

Active Publication Date: 2018-06-08
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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  • An eighteen-high cold rolling mill emulsion injection device and its application
  • An eighteen-high cold rolling mill emulsion injection device and its application
  • An eighteen-high cold rolling mill emulsion injection device and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In order to overcome the problem that the effect of lubricating and cooling the roll gap in the existing eighteen-high cold rolling mill is not good, and the side support rolls cannot be cooled, which affects the surface quality of the strip, this embodiment provides a method such as figure 2 , image 3 The eighteen-high cold rolling mill emulsion injection 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 rolls 7 and lower backing bearing rolls 8, and work rolls 18 arranged symmetrically up and down between the steel belt 5 between the side support frames 2, each side support frame 2 is close to the side support rolls 7 and the lower backing bearing rolls 8 position is provided with the second spraying device 9, and this second spraying device 9 comprises spraying beam 12 and several nozzles 10 and several nozzles 2 11 insta...

Embodiment 2

[0028] On the basis of embodiment 1, in order to make the emulsified liquid sprayed on the strip steel 5 and the side support roll 7 at the work roll nip place by the second injection device 9 more uniform, the lubricating and cooling effect is better, as image 3 and Figure 4 As shown, the spray beam 12 spans the side support frame 2, and the two ends of the spray beam 12 are fixed on the two ends of the side support frame 2, and the length direction of the spray beam 12 is parallel to the body of the side support roller 7. A number of nozzles 10 are distributed in a row on the injection beam 12, and a number of nozzles 11 are distributed in a row on the injection beam 12, and the angle between the nozzles 10 and 11 is 90°. The first nozzle 10 and the second nozzle 11 are alternately distributed on the spray beam 12, and the distance between every adjacent two nozzles 10 and every two adjacent nozzles 11 is 40-60 mm. The included angle between the nozzle two 11 and the leng...

Embodiment 3

[0030] On the basis of the above examples, if Figure 4 As shown, the present embodiment provides an application of an eighteen-high cold rolling mill emulsion injection device. The injection beam 12 is a hollow cylinder structure with one end open and the other end closed. The outer diameter of the hollow cylinder is 30mm. 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, and the emulsion pipeline 15 is provided with a flow control valve 13, a flow sensor 14, a pressure control valve 16 and a pressure The sensor 17 controls the emulsion flow rate flowing into each injection beam 12 through the flow control valve 13 and the flow sensor 14, and the pressure control valve 16 and the pressure sensor 17 control the injection pressure of nozzle one 10 and nozzle two 11 on each injection beam 12 .

[0031] Wherein, the flow rate of the injection beam 12 on each side support frame 2 is c...

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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 steel strip equipment, and in particular relates to an emulsion injection device for an eighteen-high cold-rolling mill and its application. Background technique [0002] Existing 18-high cold-rolling mill is to arrange injection beam and nozzle in the support beam 3 of entrance and exit side, is used for spraying emulsion to lubricate and cool strip when cold-rolling strip steel; figure 1 As shown, it includes a frame 1, four side support frames 2, four side support beams 3 and a first injection device 4; the four side support beams 3 are respectively located on the inlet side and the outlet side of the frame 1 up and down the strip steel 5, 3 first spray devices 4 are arranged in each side support beam 3, and each first spray device 4 comprises a spray beam and a row of nozzles, and the spray beam is arranged along the width direction of the strip steel 5, and the nozzles on the spray beam a...

Claims

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Application Information

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Patent Type & Authority Patents(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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