JPS5945019A - Device for descaling edge part of steel sheet - Google Patents

Abstract

PURPOSE:To reduce power consumption and cost, by attaching a jetting device, which jets an abrasive cleaning material accelerated by a highly pressurized water, movably in the width direction of a steel sheet, and descaling only the edge part of a steel sheet having several-size sheet-width each. CONSTITUTION:When a steel sheet 1, to be descaled only at its edge parts, is passed through a housing 2, and a motor 3 is driven; screw shafts 4, reversely threaded in left and right hands, rotate to make screwed nuts 6, 6', engaging respectively with the shafts 4, close to and part from each other without rotating them, because the nuts 6, 6' are attached to brackets 7, 7' and jetting devices 10, 10', thereby the width between the devices 10, 10' is adjusted so that they are positioned at the edge parts in accordance with the sheet width of the sheet 1. After adjusting the height of the passing sheet 1 or the jetting devices 10, 10', a highly pressurized water including an abrasive cleaning material is supplied from a highly pressurized water supplying port 11, and the sheet 1 is passed while jetting the material, accelerated by the water, from both sides of the sheet 1 through nozzles 9, 9', thereby both surfaces of the edge parts are descaled.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a descaling device for the edge of a steel plate. In order to remove scales attached to a steel plate during hot rolling for 1 hour, descaling treatment was conventionally performed mainly by pickling. There is. These descaling treatments are performed over the entire surface of both sides of the steel plate, but there are also steel plates for which the edges of barbs and square steel pipes are welded, for example, and in this case, the 4 descaling treatments of the edges are performed. 11, l
However, descaling the entire surface causes a loss of energy and is also a contributing factor to cost 1-17. By arranging the nozzle headers that inject III sweep in both width directions of the steel plate, close to and away from f1i, the edge necessary for welding the steel plate can be reduced. The deschooling of the club was turned into a novel,
/i'i Steel that can be used for energy and to reduce costs;
This is a part of the descaling equipment at Sakaetsu.

Practical/+ii examples of the present invention will be explained with reference to the drawings.

FIG. 1 and FIG. 2 are one embodiment of the present invention.

For descaling, a steel plate (1) is passed through the second part of the housing (2), and a screw is rotated and driven by a motor (3) with a reverse screw from its center. The screw shaft (4) is rotated t in the direction of the steel plate (1).
Support ll + receiver (5), and attach nuts (6) to the left and right reverse threaded parts.
((Screw the i'l together and match the bracket l-(7)
(7') is attached to the fsiJ mark (6) (fis).Remove the nozzle headers (9) parallel to each other to the body of the pipe (8) together with the pipe ( 8)
Close both ends of the injector aQ (+j) to the above-mentioned bracket 1- (7) (7), so that each nozzle header (++) is in the direction of the running force of the steel plate (]). Attach it so that it has a predetermined angle, and then attach the nano t□ (6) (C
When i) moves in the width direction of the steel plate (1), the kneading part has a diameter of 1~
The structure is such that each of the injection devices (10) (+, fffi) can move close to each other and separate from each other. High-pressure water supply for supplying river water [1]
, 0 is the coupling. ii J Nozzle header (9) (9) Length and arrangement chromaticity (・1-Determine appropriately according to the descaling width of the edge part of the plate (1) reactor.

The steel plate (1) to be descaled is passed through, and the motor (3) is driven by a screw shaft (4) with left and right reverse threads.
rotates, and the nut l□ (fi) (6') that is screwed into the screw shut (4) is the bracket (7) (7
') and the injector rliQf)
(7) and the injection device (IQ) together with (10), the jet is applied to the edge part of the steel plate (1) according to the width of the steel plate (1). Equipment (1/old 1
i is in place 16J-ru [1! I:! Own motor (:
(), L'IQ? +i! Zhou adjustment. At this point, adjust the threading level of the steel plate (1) (J, P?-F at the middle of the nozzle header of the ten kings), the threading height or the height of the injection device 00 (10). High pressure water supply +:, +
From (+), high-pressure water was sent to the nozzle header (9) (!Summon'a'l). Pass the steel plate (1) through the steel plate (1) while spraying from both sides, and descrew both sides of the edges.
do the following.

Because the two nozzle headers (!11 (qi b:j) and the screw shaft (4) and the notes (61 ((il 4y;-)) can approach and separate from each other at C, as shown in FIG. 2, when the forge is close. The distance between the rudder (!) to the nozzle is the minimum board width that can be descaled, and the distance between the nozzle header ((!) is the maximum board width that can be used for descaling, and the minimum board width and The width can be adjusted between the maximum board width.

Also, if you want to change the descaling of the edge part of s tM 4Ju (]), replace the nozzle header with the desired length of F5i, or preliminarily prepare the injection device l6 (H) (1
, 0 may be attached to the bracket (7) (7) with a rotation +1J function to adjust the angle of the nozzle header (9) (9).

3rd and 4th embodiments show other embodiments of the present invention, in which the configuration is the same as that of the above embodiments, and one phantom injection device (I
This is an example in which G (1.0) are arranged with their positions shifted in the running direction of the steel plate (1), and each injection device (]Oaj is attached so as to be movable in the direction of the motor. In the figure, 04) is the injection device Device a (
A bellows-like dust-proof cover attached to the two Uzings (2) of 0t, 00 is a cover for the entire descaling device for the steel plate edge part ji, and has the same reference numeral as in the above embodiment. indicate the same thing.

This event “Ride G”5. Even if the nozzle ladders (9) (!1) are placed close to each other, they will not interfere with each other, so the plate i'! Suitable for descaling steel plates with narrow I'l.

It should be noted that the descaling device for the edge portion of a steel plate according to the present invention is not limited to the above-mentioned embodiments, and it is of course possible to modify the type without departing from the gist of the present invention. It is.

``So''/Thus, the descaling device for the steel 4 anti-edge portion of the present invention is used.''1. [The sweeper is accelerated and sprayed with water at a height of 11 mm; the injection device is set so that it can be moved in the width direction of the steel plate. Only 11J'r can be descrewed, reducing energy consumption and cost. F2 and Muniro 4, 11, 41 publications have a great effect.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of an example of the 4〈device of the invention, the second figure is an explanatory diagram of an example of the 111L device of the present invention, the second figure is an explanatory diagram of an example of 111L of the present invention;・Hakama, Figure 4 is IV of Figure 3
-IV force direction diagram C. (10) indicates the injection device.

Claims (1)

[Claims] 1) An injection device that accelerates the fiJf sweeper 4'A with high-pressure water and injects it instead of the width of the steel plate is installed on both sides of the threading line so that it can be moved in the width direction of the steel plate. - A descaling device for steel plate edge parts, 1