CN108367326B

CN108367326B - For cleaning the device and method of the object with superficial layer to be removed

Info

Publication number: CN108367326B
Application number: CN201680072726.3A
Authority: CN
Inventors: 迈克尔·贾肖; 马丁·奥伯沙伊特; 马尔特·威廉斯
Original assignee: SMS Group GmbH
Current assignee: SMS Group GmbH
Priority date: 2015-12-23
Filing date: 2016-12-20
Publication date: 2019-12-03
Anticipated expiration: 2036-12-20
Also published as: JP6903665B2; PL3184182T3; JP2019507015A; EP3184182B1; RU2018121138A3; KR102590875B1; RU2018121138A; RU2717427C2; CN108367326A; WO2017108729A1; KR20180097696A; EP3184182A1; ES2681486T3

Abstract

A kind of fluid by under the pressure is to the hot-rolling stock (2) being moved in translation in the direction of motion (x) relative to equipment, especially slab or band is cleaned, the especially equipment of descale, the equipment has at least one nozzle supporter and at least one nozzle (4), the nozzle supporter is rotatably retained in the central support pieces (5) for being transversely or obliquely relative to superficial layer to be processed, the nozzle is maintained at the arm (31 of nozzle supporter, 32) in, fluid under pressure is discharged from the nozzle in operation, wherein nozzle (4) is oriented, so that linearly and favour rolled piece surface to rolled piece surface apply during operation from nozzle (4) be discharged fluid jet, wherein at least one nozzle (4) surrounds the rotation axis for being parallel to central support pieces (5) orientation of nozzle supporter (3) It is rotatably installed on nozzle supporter (3), wherein nozzle (4) is rotatably driven in operation, so that the angle of the direction of motion of rolled piece and the fluid jet ejected from nozzle (4) between the orientation in the plane on rolled piece surface is constant, wherein rotary shaft is contained in central support pieces (5), the rotary shaft has the input channel (13) for the fluid under pressure being embedded, the corresponding arm (31 of the input channel and nozzle supporter (3), 32) input channel (14) in is connected, the corresponding arm (31 of nozzle supporter (3), 32) input channel (14) in leads to the injection opening (43) of the nozzle body (41) of nozzle (4), and definition being under 80bar to 1000bar pressure from nozzle (4) The vector in the injection direction of fluid jet does not have component in the direction of motion (x) of rolled piece (2).In addition, also describing for clean method.

Description

For cleaning the device and method of the object with superficial layer to be removed

The present invention relates to a kind of for moving in the movement direction relative to equipment with superficial layer to be removed Object is cleaned, especially the equipment of descale (Entzundern) and the method for cleaning objects.

For to the object with superficial layer to be removed, especially to there is oxide layer to be removed (Zunderschicht) hot-rolling stock is cleaned, and especially such equipment of descale is for example from DE 43 28 It is known in 1 798 424 B1 of 303 C2 or EP.This descale equipment is used for by acting on rolled piece table under high pressure Fluid jet on face, such as high-pressure water jet remove the oxide layer being present on steel.The flat burner used thus is fixed On cylindrical nozzle supporter (D ü senhalter), wherein the nozzle supporter can be revolved around the axis perpendicular to rolled piece Turn, and therefore move through equipment rolled piece surface by repeatedly it is inswept, to remove the oxide skin of rolled piece.

Multiple nozzle heads are arranged in the two parts of files mentioned, these nozzle heads respectively have multiple to be arranged adjacent to each other The flat burner of moving direction in a row, perpendicular to rolled piece.

The shortcomings that these cleaning equipments well known in the prior art, is, firstly, by with the flat spray being disposed thereon The rotation of the nozzle head of mouth, the fringe region of rolled piece is applied fluid more stronger than central area, in this way, due to by spraying The inhomogeneous cooling of caused rolled piece causes to form so-called hot striped on rolled piece.

In addition, the part of oxide skin can be removed along the direction of motion of rolled piece when removing the oxide skin on rolled piece surface, This danger contained is, in next operation of rolling, the previously passed oxidation skin bit for applying compression fluid removing is rolled subsequent It is rolled into rolled piece surface again during system.

The fact that another disadvantage of the prior art is derived from is not only oxide skin in rolled piece upper surface, and penetrates Flowing fluid itself can not targetedly remove from rolled piece.Thus caused fluid is longer and uncertain on rolled piece surface Residence time causes the damping effect reduced to the fluid jet generation quality next acted on, since energy considerations rolled piece is not by The desirably cooling and unfavorable temperature difference for operational safety between the bottom surface of rolled piece and colder top surface.

The object of the present invention is to provide a kind of for cleaning moving relative to equipment with superficial layer to be removed The device and method of the object just moved upwards eliminate disadvantages mentioned above by the equipment, and the equipment or this method can be both Fluid is saved to operate energy savingly again.

The task is achieved by as described below for clean equipment.In addition, being proposed for task also passes through such as The lower clean method is achieved.

The present invention provides a kind of for cleaning by the fluid under the pressure to object, especially descale Equipment, the object move on direction of motion x relative to the equipment, have superficial layer to be removed, and the object is especially warm Rolled piece, especially slab or band, the equipment include

At least one nozzle supporter, the nozzle supporter be rotatably retained at be transversely or obliquely relative to it is to be processed Superficial layer central support pieces on,

At least one nozzle, the nozzle are maintained in the arm of the nozzle supporter, the fluid under pressure It is discharged in operation from the nozzle,

Wherein the nozzle is oriented, and is applied to so that favouring the superficial layer with an angle of attack γ to the superficial layer The fluid jet being discharged during operation from the nozzle,

Wherein at least one described nozzle is rotatably pacified around the rotation axis for being parallel to the central support pieces orientation On the nozzle supporter,

Wherein the nozzle is rotatably driven in operation so that the direction of motion x of the object with from described Angle [alpha] of the fluid jet that nozzle ejects between the orientation in the plane of the superficial layer be it is constant,

It is characterized in that,

Rotary shaft is accommodated in the central support pieces, and the rotary shaft has what is be embedded to be in for described The input channel of fluid under pressure, the input channel and the input channel phase in the corresponding arm of the nozzle supporter Even, the input channel in the corresponding arm of the nozzle supporter leads to the injection opening of the nozzle body of the nozzle, and

The injection direction of the fluid jet under 80bar to 1000bar pressure from the nozzle is carried out The vector of definition does not have component on the direction of motion x of the object.

It is according to the present invention that there is at least one nozzle supporter, at least one nozzle supporter for clean equipment It is rotatably retained in the central support pieces for being transversely or obliquely relative to superficial layer to be processed.

There is at least one nozzle supporter at least one to be maintained at the nozzle in the arm of nozzle supporter, under pressure Fluid in operation from the nozzle be discharged.

Here, nozzle is orientated as follows, so that favouring surface from the fluid jet that nozzle is discharged during operation Layer is applied to superficial layer.

Here, the rotation axis that at least one nozzle surrounds the central support pieces orientation for being parallel to nozzle supporter is rotatable Ground is mounted on nozzle supporter, and wherein nozzle is rotatably driven in operation so that the direction of motion of object with from nozzle Angle of the fluid jet ejected between the orientation in the plane of superficial layer is constant.

Rotary shaft is accommodated in central support pieces, which has the fluid for being under pressure being embedded Input channel, the input channel and input channel in the corresponding arm of nozzle supporter be connected, the phase of nozzle supporter The input channel in arm answered leads to the injection opening of the nozzle body of nozzle.

Here, being defined to the injection direction of the fluid jet under 80bar to 1000bar pressure from nozzle Vector there is no component in the direction of motion of object.

Thus, it is possible to be accomplished that, the fluid jet of layer to be removed, especially oxide layer will be removed in nozzle supporter It is always orientated in a same direction while rotation, this is can be realized first to superficial layer (especially rolled piece surface) equably Apply, and in the specific energy input (spezifischen Energieeintrag) on the rolled piece surface due to repeatedly applying The reduction of difference, therefore a possibility that using obvious less fluid, is provided.

Secondly, can be realized by the direction of the launch of nozzle kept constant is orientated nozzle so, so that these nozzles Always with can the direction of motion of pre-adjusted velocity component and object emit on the contrary, and thereby can be avoided and especially separated , in the next operation of rolling again may be rolled into the oxide skin in the surface of rolled piece partially away from for descale Equipment and remain on rolled piece, and after on the top surface for resting on rolled piece for a long time, this can so as to avoid Jetstream fluid Undesirable cooling can be will lead to and heat is asymmetric.

Injection direction based on the fluid jet from nozzle, the surface block removed by the effect of fluid jet is always It is removed on the contrary from the surface of object with the direction of motion of object.

Advantageous form of implementation modification according to the present invention, at least one nozzle can drive by transmission device power. It is particularly preferred that the transmission device is constructed such that first gear is rotatably installed in each arm of nozzle supporter In, it is fixed on nozzle to the second gear being fixed in central support pieces to the anti-torsion at the first gear and center and anti-torsion On the engagement of third gear, wherein first gear and third gear are equal in magnitude, and thus one carrys out turning for nozzle and nozzle supporter The numerical value of speed is identical.

By selecting the radius of first gear to be also able to achieve, in the different distance of the rotation axis with nozzle supporter Place's positioning nozzle, so that the nozzle supporter of the arm with multiple and different length therefore can be constructed, this is penetrated in hydraulic The uniform surface distribution aspect of beam energy is advantageous.

According to preferred form of implementation modification, in order to rotate driving nozzle supporter, nozzle supporter anti-torsion with can The rotation axis connection of driving being contained in central support pieces is rotated, wherein the input channel of the fluid under pressure is contained in In rotary shaft.

Optionally, modification according to another implementation of the invention, by the 4th gear anti-torsion of sliding tooth wheel drive Ground is arranged in nozzle supporter sheet.

According to preferred form of implementation modification, nozzle supporter has at least two arms, rotatable respectively on these arms Ground fixed nozzle.

According to another preferred form of implementation modification, multiple nozzle supporters are disposed adjacently to one another, wherein by nozzle The radius of turn on the surface of the arm covering of supporter partially overlaps each other.This makes equipment equipped with multiple according to the width of rolled piece This nozzle supporter is achieved.

Another advantageous form of implementation according to the present invention, the stream for determining the direction of motion of rolled piece and being ejected from nozzle The orientation of the nozzle of angle between the truncation Line (Auftrefflinie) of body jet stream can be preset.

The present invention provide it is a kind of object is cleaned by the fluid under the pressure using equipment, especially deoxidation The method of skin, the object move on direction of motion x relative to the equipment, have superficial layer to be removed, and the object is special It is hot-rolling stock, especially slab or band, the equipment has at least one nozzle supporter and at least one nozzle, the nozzle Supporter is rotatably retained in the central support pieces for being transversely or obliquely relative to superficial layer to be processed, at least one described spray Mouth is maintained in the arm of the nozzle supporter, and the fluid under pressure is discharged from the nozzle in operation, wherein The nozzle is oriented, so that favouring the superficial layer applies the stream being discharged in operation from the nozzle to the superficial layer Body jet stream, wherein at least one described nozzle surrounds and is parallel to the spray when applying the fluid jet to the superficial layer The rotation axis of the central support pieces orientation of mouth supporter is rotated relative to the nozzle supporter of rotation, so that the object The angle between the orientation in the plane of the superficial layer direction of motion x and the fluid jet that is ejected from the nozzle Degree α is kept constant, which is characterized in that the nozzle is rotated relative to the nozzle supporter of rotation, so that from the nozzle The injection direction of fluid jet under 80bar to 1000bar pressure is always by opposite with the direction of motion x of the object Component of a vector realize that and the fluid under pressure is introduced into via input channel, the input channel accommodates In the rotary shaft for being embedded in the central support pieces, the input channel and the input in the corresponding arm of the nozzle supporter Pipeline is connected, and the injection for the nozzle body that the input channel in the corresponding arm of the nozzle supporter leads to the nozzle is opened Mouthful.

Be characterized in that according to the method for the present invention, to superficial layer, when especially rolled piece surface applies fluid jet, make to The rotation axis that a few nozzle surrounds the central support pieces orientation for being parallel to nozzle supporter is supported relative to the nozzle of rotation Part rotation, so that the angle between the direction of motion of object (especially rolled piece) and the truncation Line of the fluid jet ejected from nozzle Degree remains unchanged.

Here, nozzle is rotated relative to the nozzle supporter of rotation, so that the injection direction of the fluid jet from nozzle It is always opposite with the direction of motion of object.

The preferred embodiment of the present invention modification will be illustrated in more detail by attached drawing below.It is shown in figure:

Fig. 1 shows the perspective view of the first form of implementation modification of the equipment with nozzle supporter, the nozzle supporter Have there are two arm,

Fig. 2 shows the sectional view of equipment shown in FIG. 1,

Fig. 3 shows the perspective of the optional form of implementation modification of the equipment according to the present invention with nozzle supporter Figure, the nozzle supporter have there are three arm,

Fig. 4 shows the front view of equipment shown in Fig. 3,

Fig. 5 shows the perspective view of multiple equipment according to Fig. 3 for being arranged in a row arrangement,

Fig. 6 a is to FIG. 6d shows that the views that equipment shown in Fig. 1 in each rotation positions different in time is seen from below Figure,

Fig. 7 a to Fig. 7 d shows the equipment top viewed from above of rotation positions different in time formed according to Fig. 3 View, and

Fig. 8 shows the equipment top view viewed from above of the nozzle with different orientation constituted according to Fig. 3.

The following drawings description in, term such as above, below, the left side, the right, front, below only relate to rolled piece, in The graphical representation of exemplary and position that heart supporting member, nozzle supporter, arm, nozzle etc. select in the corresponding drawings.These terms are simultaneously Understood without limitation, i.e., these relationships can be changed by different operating positions or mirror symmetry design etc..

The first form of implementation modification of equipment 1 according to the present invention is shown in Fig. 1, Fig. 2 and Fig. 6 a to Fig. 6 d, this sets The standby fluid by under pressure is to the object 2 moved relative to equipment in direction of motion x with superficial layer to be removed (especially hot-rolling stock, especially slab or band (Brammen oder)) cleaned, especially descale.

Below by for relative to equipment in the direction of motion X hot-rolling stock descale being moved in translation equipment and side The present invention is further elaborated in method, but is not limited to the application.

Rolled piece in particular to slab or band to descale.It is also conceived that the equipment is used for other of raw steel Form finding design.

In the form of implementation modification shown in Fig. 1, Fig. 2 and Fig. 6 a to Fig. 6 d, which has both arms nozzle supporter 3, There are two arm 31 and 32, which rotatably pacifies the both arms nozzle supporter 3 tool relative to central support pieces 5 Dress.

In order to rotate drive the nozzle supporter 3, gear 6 is arranged to anti-torsion on nozzle supporter 3, the gear with (unshowned) driving gear shape ordinatedly effectively connects and thereby rotates nozzle supporter 3 in operation.

From the downside in face of rolled piece 2 of nozzle supporter 3, nozzle 4 is outstanding from each of arm 31,32, is in pressure Under fluid (such as water) be discharged in operation by the nozzle, to remove and remove oxide layer present on rolled piece surface.

Be configured to flat burner in the form of implementation modification shown in the figure of nozzle 4, the nozzle be preferably 0 ° extremely 90 °, particularly preferably 10 ° to 50 ° of jet angle β projects fluid jet 12 to the surface of rolled piece.Here, jet angle β should be managed Solution is that fluid jet is projected from the sector on channel end towards the surface to be processed of nozzle.

Nozzle 4 is oriented such that the fluid jet 12 ejected with the surface normal relative to surface to be processed herein It 0 ° to 40 °, is preferably orientated with 5 ° to 20 ° of angle of attack γ.

Pressure as used herein changes between 80 and 1000bar, preferably changes in the range of 200 to 400bar.

Here, each of nozzle 4 is surrounded by shell 41, third gear 9,10 is fixed on the shell in external anti-torsion On.For this purpose, shell 41 is rotatably installed in nozzle supporter 3.

The introducing of the fluid being discharged from nozzle 4 in operation under pressure is realized by input channel 14, is somebody's turn to do Input channel 14 is sealed by rotating seal 42 and is passed through the opening of the injection in nozzle body 41 43.

In order to which the rotation of nozzle supporter 3 reverse rotation corresponding with nozzle 4 is coupled together, according to fig. 2 in nozzle Be rotatably mounted first gear 7,8 in each arm 31,32 of supporter 3, the anti-torsion at the first gear and center it is fixed In central support pieces 5 second gear 11 and anti-torsion be fixed on third gear 9,10 on nozzle 4 and engage.

First gear 7,8 and third gear 9,10 radius having the same herein, so that nozzle supporter 3 surrounds central axis The rotation speed of line corresponds to rotation speed of the nozzle 4 relative to nozzle supporter 3.

Rotatability and nozzle by nozzle 4 relative to the nozzle supporter 3 for being configured to jet beam here are supported Part 3 can be realized relative to the rotatability of the rotary motion of central axis, and Fig. 6 a as shown in offset in time is extremely Shown in Fig. 6 d, the angle [alpha] between the direction of motion X of rolled piece and the truncation Line of the fluid jet 12 from the discharge of nozzle 4 is kept constant. Term truncation Line is interpreted as the big axis of the shock surface oval in the case where normally applying direction herein.

Relative to rolled piece surface linear and tilt fluid jet 12 of the Ground shock waves on rolled piece surface be achieved in from The continuous scale removal in rolled piece surface, wherein the oxide skin being removed and injection fluid are always in the direction of motion relative to rolled piece X is projected on identical direction.In addition, in this way can be significantly compared to descale equipment known in the art The use of water and the energy is reduced, more evenly and is more effectively realized because repeatedly apply to rolled piece surface, this is on the one hand Facilitate less fluid consuming, especially water consumption, and also contribute to reducing energy consumption on the other hand, because optimizing Multiple application pressure (hydraulic) water can cool down rolled piece smaller and before next operation of rolling thus without so by force again Secondary heating rolled piece.

It is filled in the driving for forming nozzle and nozzle supporter 3 via the gear-box being made of multiple gears 7,8,9,10,11 When setting, it can preferably be adjusted by initially setting the injection direction b of nozzle 4 and project direction b, so that definition is from nozzle 4 The vector of the injection direction b of fluid jet 12 does not have component on the direction of motion X of rolled piece 2, therefore ensures that, cannot roll The oxidation skin portion removed is removed on the direction of motion X of part, and the oxidation skin zone removed is removed on the direction of motion X of rolled piece Dividing to be likely to result in is rolled into the oxidation skin bit of previously passed equipment removal again in the subsequent operation of rolling.

Another form of implementation modification of equipment according to the present invention is shown in Fig. 3 to Fig. 5 and Fig. 7.Implement herein Being configured with tool in form modification in the form of three arms, there are three the nozzle supporters 3 of arm 31,32 and 33.

In this case, arm 31,32,33 is different on its radical length radial relative to central support pieces 5, wherein Nozzle 4 is arranged on the corresponding arm of nozzle supporter 3, so that the spacing of the rotation axis of these nozzles and nozzle supporter 3 It is different.

The driving of nozzle supporter 3 is in Fig. 3-Fig. 5 and form of implementation modification shown in Fig. 7 by being contained in centre bearing Rotary shaft 16 in part 5 is realized.The end of rotary shaft 16 is outstanding from motor flange, and motor can be fastened on the motor flange On, rotary shaft 16 can be driven to power by the motor.

It is the high voltage interface 17 on the shell 51 for being arranged in central support pieces 5 below the end of rotary shaft 16 Entrance opening, the fluid under pressure introduce input channel 13 by the high voltage interface, which is embedded into rotation In axis 16.

Rotary shaft 16 is preferably placed in the shell 51 of central support pieces 5 by roller bearing herein.

In addition, fastening rib 52 is also set up on the shell 51 of central support pieces 5, it can be by shell 51 by the fastening rib It is fixed on bracket, the rack arrangement is in rolled piece 2 above or below the delivery track of its operation.

Second gear 11 in the circumferential and anti-torsion be fixed on shell 51 it is cylindrical, engage into nozzle supporter 3 Part on, and the region anti-torsion of rotary shaft 16 being stretched in nozzle supporter 3 connect with nozzle supporter 3.

If rotary shaft 16 is rotated, nozzle supporter 3 is rotated with it.Thus make in nozzle supporter 3 Second gear 11 rotary motion of one gear 7,8 and 18 relative to standing, so that passing through the rotation of first gear 7,8,18 Movement, third gear 9,10,19 also rotates in the opposite direction, and therefore makes nozzle 4 relative to the shell of central support pieces 5 51 orientation is kept constant.

Fig. 5 shows the arrangement of multiple equipment for descale placed side by side, which has the spray of three arm type Mouth supporter.Equipment 1 is arranged in this way each other, so that these equipment rotate in the opposite direction.It can also be envisaged that It is so to position and drive each equipment, so that each adjacent nozzle supporter 3 rotates in a same direction.

The maintenance of the orientation of nozzle 4 is again illustrated in Fig. 7 a to Fig. 7 d.It can be clearly seen that under pressure Each position of the linear shock surface of fluid in the rotation position of nozzle supporter 3 is orientated in the same manner.

Fig. 8 shows the optional orientation of nozzle 4, wherein left side of the rotation position of nozzle supporter 3 on rolled piece surface Upper jet angle β with about 45 ° opposite with the direction of motion x of rolled piece is outwardly oriented, and the rotation of nozzle supporter 3 Position jet angle β with about 45 ° opposite with the direction of motion x of rolled piece above the right part on rolled piece surface is outwardly oriented.

For example, it is also to be contemplated that each nozzle in nozzle 4, which is individually orientated, particularly in this instance it is important that, The jet angle β of nozzle 4 and the direction of motion of rolled piece are oppositely oriented, and thereby avoid the oxide skin removed partially away from being used for The equipment of descale and remain on rolled piece, otherwise these oxidation skin portions in the next operation of rolling may again by It rolls into the surface of rolled piece, and to avoid Jetstream fluid after on the top surface for resting on rolled piece for a long time, this may be led Cause undesirable cooling and heat asymmetric.

It is moved in translation on direction of motion x by the fluid under pressure to relative to equipment by above equipment Hot-rolling stock carry out descale according to the method for the present invention in, in operation, make at least one nozzle 4 to rolled piece Rotation axis when surface applies fluid jet 12 around the orientation of central support pieces 5 for being parallel to nozzle supporter 3 is relative to rotation The nozzle supporter 3 turned rotates, so that between the direction of motion x of rolled piece 2 and the truncation Line of the fluid jet 12 from the discharge of nozzle 4 Angle [alpha] keep constant.Here, nozzle supporter 3 preferably so rotation of the nozzle 4 relative to rotation, so that coming from nozzle 4 Fluid jet 12 injection direction come always by the pre-set velocity component opposite with the direction of motion x of rolled piece 2 it is real It is existing.

List of reference signs

1 equipment

2 objects

3 nozzle supporters

31 arms

32 arms

33 arms

4 nozzles

41 shells

42 rotating seals

43 injection openings

5 central support pieces

51 shells

52 fastening ribs

6 gears

7 gears

8 gears

9 gears

10 gears

11 gears

12 fluid jets

13 input channels

14 input channels

15 roller bearings

16 rotary shafts

17 high voltage interfaces

18 gears

19 gears

The direction of rotation a

The X direction of motion

B projects direction

Angle between α X and truncation Line

β jet angle

The γ angle of attack

Claims

1. a kind of for carrying out clean equipment to object (2) by the fluid under pressure, the object (2) is relative to described Equipment moves in the direction of motion (x), has superficial layer to be removed, and the equipment includes

At least one nozzle supporter (3), the nozzle supporter be rotatably retained at be transversely or obliquely relative to it is to be processed In the central support pieces (5) of superficial layer,

At least one nozzle (4), the nozzle is maintained in the arm (31,32,33) of the nozzle supporter (3), described to be in Fluid under pressure is discharged from the nozzle in operation,

Wherein the nozzle (4) is oriented, and is applied to so that favouring the superficial layer with an angle of attack (γ) to the superficial layer The fluid jet (12) being discharged during operation from the nozzle (4),

Wherein rotary shaft (16) is accommodated in the central support pieces (5), and the rotary shaft has what is be embedded to be used for institute State the first input channel (13) of the fluid under pressure, the phase of first input channel and the nozzle supporter (3) The second input channel (14) in arm (31,32,33) for answering is connected, the corresponding arm of the nozzle supporter (3) (31,32, 33) the second input channel (14) in leads to the injection opening (43) of the nozzle body (41) of the nozzle (4),

Wherein the nozzle (4) is rotatably driven in operation so that the direction of motion (x) of the object (2) with from Angle (α) of the fluid jet (12) that the nozzle (4) ejects between the orientation in the plane of the superficial layer be Constant,

It is characterized in that,

At least one described nozzle (4) is rotatably mounted around the rotation axis for being parallel to the central support pieces (5) orientation On the nozzle supporter (3), and it is configured to the flat burner with 0 ° to 90 ° jet angle (β), and

First gear (7,8,18) is rotatably disposed in each arm (31,32,33) of the nozzle supporter (3), described The second gear (11) being fixed on to the anti-torsion at first gear and center on the central support pieces (5) and anti-torsion it is fixed Third gear (9,10,19) engagement on the nozzle (4), wherein the second gear (11) and the third gear (9, It is 10,19) equal in magnitude,

So that in equipment operation, to the institute under 80bar to 1000bar pressure from the nozzle (4) It states the vector that the injection direction of fluid jet (12) is defined and does not have component in the direction of motion (x) of the object (2).

2. equipment according to claim 1, which is characterized in that the equipment is used for by the fluid under pressure to object Body (2) carries out descale.

3. equipment according to claim 1, which is characterized in that the object (2) is hot-rolling stock.

4. equipment according to claim 1, which is characterized in that the object (2) is slab or band.

5. equipment according to claim 1, which is characterized in that at least one described nozzle (4) can be by transmission device Drive to power.

6. equipment according to claim 1, which is characterized in that nozzle supporter (3) anti-torsion with rotatable drive The dynamic rotary shaft (16) being contained in the central support pieces (5) is connected, wherein the first of the fluid under pressure Input channel (13) is contained in the rotary shaft (16).

7. equipment according to claim 5, which is characterized in that nozzle supporter (3) anti-torsion with rotatable drive The dynamic rotary shaft (16) being contained in the central support pieces (5) is connected, wherein the first of the fluid under pressure Input channel (13) is contained in the rotary shaft (16).

8. equipment according to any one of claim 1 to 7, which is characterized in that by the 4th gear of sliding tooth wheel drive (6) it is arranged in anti-torsion on the nozzle supporter (3).

9. equipment according to any one of claim 1 to 7, which is characterized in that the nozzle supporter (3) has at least Two arms (31,32).

10. equipment according to any one of claim 1 to 7, which is characterized in that multiple nozzle supporters (3) phase each other It arranges adjacently, wherein the radius of turn on the surface covered by the arm (31,32,33) of the nozzle supporter (3) is each other partly Overlapping.

11. equipment according to claim 10, which is characterized in that the nozzle supporter (3) being adjacently positioned is with identical rotation Turn direction (a) to be driven.

12. equipment according to claim 10, which is characterized in that the nozzle supporter (3) being adjacently positioned is respectively with difference Direction of rotation (a) driven.

13. equipment according to any one of claim 1 to 7, which is characterized in that determine the movement side of the object (2) The nozzle (4) to (x) and from the angle (α) between the truncation Line for the fluid jet (12) that the nozzle (4) ejects Orientation can be preset.

14. a kind of carry out clean method to object (2) by the fluid under pressure using equipment, the object (2) is opposite It is moved in the direction of motion (x) in the equipment, there is superficial layer to be removed, the equipment is supported at least one nozzle Part (3) and at least one nozzle (4), the nozzle supporter (3) be rotatably retained at be transversely or obliquely relative to it is to be processed In the central support pieces (5) of superficial layer, at least one described nozzle (4) be maintained at the nozzle supporter (3) arm (31,32, 33) in, the fluid under pressure is discharged from the nozzle (4) in operation, wherein the nozzle (4) is oriented, makes The superficial layer must be favoured and apply the fluid jet (12) being discharged in operation from the nozzle (4) to the superficial layer, In when applying fluid jet (12) to the superficial layer, at least one described nozzle (4) is around being parallel to the nozzle The rotation axis of the central support pieces (5) orientation of supporter (3) is rotated relative to the nozzle supporter (3) of rotation, so that The direction of motion (x) of the object is with the fluid jet (12) ejected from the nozzle (4) in the flat of the superficial layer Angle (α) between orientation in face is kept constant, wherein the fluid under pressure is via the first input channel (13) It being introduced into, first input channel (13) is contained in the rotary shaft (16) for being embedded in the central support pieces (5), and described first Input channel (13) is connected with the second input channel (14) in the corresponding arm (31,32,33) of the nozzle supporter (3), The second input channel (14) in the corresponding arm (31,32,33) of the nozzle supporter (3) leads to the spray of the nozzle (4) The injection of mouth shell (41) is open (43), which is characterized in that

The nozzle (4) rotates relative to the nozzle supporter (3) of rotation in operation, so that coming from the place of the nozzle (4) The injection direction of fluid jet (12) under 80bar to 1000bar pressure is always by the direction of motion with the object (2) (x) opposite component of a vector is realized.

15. according to the method for claim 14, which is characterized in that the method is used to carry out descale to object (2).

16. according to the method for claim 14, which is characterized in that the object (2) is hot-rolling stock.

17. according to the method for claim 14, which is characterized in that the object (2) is slab or band.