CN209577751U - The preposition descaling device of roughing mills - Google Patents
The preposition descaling device of roughing mills Download PDFInfo
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- CN209577751U CN209577751U CN201920130145.1U CN201920130145U CN209577751U CN 209577751 U CN209577751 U CN 209577751U CN 201920130145 U CN201920130145 U CN 201920130145U CN 209577751 U CN209577751 U CN 209577751U
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Abstract
The utility model relates to hot-strip rough rolling process scale removal equipments in metallurgy industry, disclose a kind of preposition descaling device of roughing mills.The preposition descaling device connects elevating mechanism structure on upper descaling header, the height of upper descaling header is adjusted by elevating mechanism, to realize the height adjustment of descaling jet, the techniques such as the de-scaling hitting power according to needed for actual production steel grade, temperature drop control require to carry out the implementation of a variety of descaling process schemes, and can guarantee optimal scale removal effect in any de-scaling passage；It is combined by inverted lifting hydraulic cylinder with support column, make support column while playing support de-scaling cover and arrangement lifting hydraulic cylinder, not only increase the utilization rate in space, and strengthen the stability of de-scaling cover；Inverted lifting hydraulic cylinder is can be effectively prevented in descaling device relative to the lifting hydraulic cylinder just set because dust and tiny iron filings long-term accumulation are in cylinder body port, to improve the service life of lifting hydraulic cylinder.
Description
Technical field
The utility model relates to hot-strip rough rolling process scale removal equipment in metallurgy industry, before especially a kind of roughing mills
Set descaling device.
Background technique
In traditional hot-rolled strip production line, after the heated stove heating of slab, it is delivered to De-scaling box after furnace, utilizes high pressure
Water removes the iron scale of steel slab surface, is then fed into roughing mills and is rolled.Since slab can also produce during the rolling process
Raw iron scale is also required to remove regenerating oxidation iron sheet using high pressure water in rough rolling process, otherwise exist in addition to dedicated De-scaling box
Strip surface quality can be influenced due to the insertion or scuffing of iron scale in the operation of rolling.It therefore, generally can be in roughing mills
Between increase fixed descaling header.For the roughing mills of some vertical millers and roughing mill compact Layout, descaling header is needed
It is arranged in front of roughing mills.But this kind of forward type descaling header be since de-scaling height is fixed, in different rolling passes,
Since slab thickness changes greatly, lead to the increase of de-scaling height, the reduction of hitting power, scale removal effect weakens.
In traditional operation of rolling, roughing mills descaling device is shown in Fig. 1.Preposition descaling device is installed on rolling for roughing mills
Arrival end processed, slab enter descaling device and carry out de-scaling, and the slab after de-scaling enters rolling unit and rolled.In de-scaling process
In, the descaling jet of upper descaling header and lower descaling header carries out de-scaling to slab upper and lower surface respectively.According to rolling mill practice need
It can need when the different passages of rolling pass carry out de-scaling, and roughing mills roll in odd-numbered pass (the 1st, 3,5
It is secondary) de-scaling is carried out, the 1st passage slab thickness is 210mm, and the 3rd passage slab thickness is 112mm, and the 5th passage slab thickness is
The de-scaling height (vertical strike height) of 46mm, lower descaling header are 200mm, and will not be changed because of passage difference, but the 1st
The de-scaling height of upper descaling header is 200mm when passes, whens 3 passes the de-scaling height of upper descaling header be
298mm, the de-scaling height of upper descaling header is 364mm when 5 passes, the de-scaling height of upper descaling header in 3 passages
Constantly increase.Manufacture and design the research of company according to the descaling jet of domestic authority, de-scaling hitting power is by vertical strike height
Influence it is maximum, and de-scaling hitting power with it is vertical hit height square inversely.Then the de-scaling hitting power of the 3rd passage is opposite
1st passage will reduce 55%, then the de-scaling hitting power of the 5th passage will reduce 70% with respect to the 1st passage, seriously affect de-scaling
Effect.
In view of the above problems, notification number is that the patent application of CN204996839U discloses a kind of hydraulic elevation type hot rolled plate
Base high pressure water descaling device goes up and down it by the way that lifting hydraulic cylinder is arranged below upper descaling header both ends, to be directed to
Different slab thicknesses realizes the adjustment of de-scaling height, and guarantees the same of both ends lifting hydraulic cylinder by setting displacement sensor
Step lifting.Although the program realizes the adjustment of de-scaling height, also bring along some problems.It is usually needed in preposition descaling device
Cover is set to prevent de-scaling water from splashing outward, and in order to guarantee the stability of cover, then it needs that support knot is arranged in two sides
Structure, but after arranging lifting hydraulic cylinder with its technical solution, since space limits, the support construction for being not easy to arrangement cover is realized
The excellent support of cover.In addition, its lifting hydraulic cylinder is set up, small hammer scale is easy accumulation on cylinder body and entering
Between cylinder body and piston rod, the service life of lifting hydraulic cylinder and hydraulic oil is reduced.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of preposition descaling devices of roughing mills, save space,
Reinforce the stability of de-scaling cover, improves lifting hydraulic cylinder service life.
The preposition descaling device of the height-adjustable roughing mills of de-scaling adjusts de-scaling for the thickness of different passage blanks
Strike height guarantees reasonable vertical strike height and hitting power, obtains good scale removal effect.
The preposition descaling device of roughing mills disclosed by the utility model, including upper descaling header and lower descaling header, it is described
Upper descaling header and lower descaling header are mounted on descaling jet, and the upper descaling header and lower descaling header are respectively and for water system
System is connected, and the upper descaling header is connected with the lifting hydraulic cylinder for adjusting de-scaling height, and the lifting hydraulic cylinder includes
Cylinder body is provided with de-scaling cover, de-scaling cover two sides with the intracorporal piston rod of cylinder, the upper descaling header top is set to
It is provided with support column, the support column is vertically provided with guide groove, and the cylinder body is set to the top of support column, the piston
Bar extends downward into guide groove, and the upper descaling header both ends are provided with upper header seat, and the upper header seat is set to guiding
It is slidably matched in slot and with guide groove, the piston rod is connected with upper header seat；
The rear end of the de-scaling cover is connected in the rack of milling train and the two sides of de-scaling cover are connected with support column.
Preferably, de-scaling cover two sides are respectively arranged with the first connector, and first connector one end is connected to
In the rack of milling train, the other end is connected to the side of de-scaling cover, and the side of first connector is connected with the second connector,
Second connector is connected on support column, and the support column is connected by third connector with the rack of milling train.
Preferably, anticollision gusset is provided in the de-scaling cover, the anticollision gusset includes lateral gusset and longitudinal rib
Plate, for the transverse direction gusset perpendicular to rolling direction, the longitudinal direction gusset is parallel to rolling direction, opens up below the longitudinal direction gusset
There is upper header mounting groove, the upper descaling header is located in upper header mounting groove, and the lower edge of the longitudinal direction gusset is lower than upper de-scaling
The descaling jet of collector.
Preferably, upper header seat two sides are provided with boss, and boss is corresponded in the guide groove and is provided with sliding slot, described
Slide plate is provided on the sliding slot sliding surface opposite with boss.
Preferably, the guide groove lower part is provided with limited block.
Preferably, the leading inside of the de-scaling cover is provided with catch basin, the catch basin towards descaling jet one
Side is provided with inlet, and the catch basin is connected with drainpipe.
Preferably, the front end outer side of the de-scaling cover is provided with inverse spray manifold, and the inverse spray manifold passes through inverse spirt water
Pipe is connected with water system, and inverse spray spray head is provided in the inverse spray manifold, and the reverse rolling direction of descaling jet is arranged,
The inverse spray spray head is biased to rolling direction setting.
Preferably, the angle of the descaling jet and vertical direction is 10 °~30 °, the inverse spray spray head and vertical direction
Angle be 30 °~60 °.
Preferably, supporting support, the supporting support connection are respectively arranged on the support column of de-scaling cover two sides
In on de-scaling cover, the inverse spirt water pipe and drainpipe are respectively arranged in the supporting support of de-scaling cover two sides.
Preferably, the upper descaling header is connected by high-pressure hose with water system.
The beneficial effects of the utility model are: the preposition descaling device connects elevating mechanism structure on upper descaling header,
The height of upper descaling header is adjusted by elevating mechanism, thus realize the height adjustment of descaling jet, it can be according to actual production steel
The techniques such as de-scaling hitting power, temperature drop control needed for kind require to carry out the implementation of a variety of descaling process schemes, and can be any
De-scaling passage can guarantee optimal scale removal effect；
It is combined by inverted lifting hydraulic cylinder with support column, make support column while playing support de-scaling cover and cloth
Lifting hydraulic cylinder is set, the utilization rate in space is not only increased, and strengthens the stability of de-scaling cover；
Inverted lifting hydraulic cylinder can be effectively prevented in descaling device because of dust relative to the lifting hydraulic cylinder just set
And tiny iron filings long-term accumulation is in cylinder body port, to improve the service life of lifting hydraulic cylinder.
The height-adjustable descaling device of this kind of de-scaling, simple and reliable for structure, cost of investment is low, can be raw for newly upper hot rolling
Producing line and transformation production line carry out Rapid Popularization.
Detailed description of the invention
Fig. 1 is the main view of the utility model；
Fig. 2 is the top view of the utility model；
Fig. 3 is the cross-sectional view of A-A in Fig. 1；
Fig. 4 is the side view of support column；
Fig. 5 is the cross-sectional view of B-B in Fig. 4.
The arrow in left side indicates rolling direction in Fig. 3；Arrow on the left of Fig. 2 indicates drainage direction, two arrows on right side
Respectively indicate the water supply direction of descaling header and inverse spray manifold.
Appended drawing reference: lifting hydraulic cylinder 1, upper descaling header 2, high-pressure hose 3, inverse spirt water pipe 4, supporting support 5, inverse spray
Collector 6, de-scaling cover 7, support column 8, descaling jet 9, lower descaling header 10, drainpipe 11, key 12, upper header seat 13, guiding
Slot 14, limited block 15, slide plate 16, conjunction bolt 17, the first connector 18, the second connector 19, third connector 20, transverse direction
Gusset 21, longitudinal gusset 22, inverse spray spray head 23, catch basin 24, inlet 25, milling train 26, upper header mounting groove 27.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Shown in Fig. 1~3, the preposition descaling device of the roughing mills of the utility model, including upper descaling header 2 and lower de-scaling collection
Pipe 10, the upper descaling header 2 and lower descaling header 10 are mounted on descaling jet 9, the upper descaling header 2 and lower de-scaling collection
Pipe 10 is connected with water system respectively, and the upper descaling header 2 is connected with the lifting hydraulic cylinder 1 for adjusting de-scaling height,
The lifting hydraulic cylinder 1 includes cylinder body and is set to the intracorporal piston rod of cylinder, is provided with de-scaling cover above the upper descaling header 2
Body 7,7 two sides of de-scaling cover are provided with support column 8, and the support column 8 is vertically provided with guide groove 14, and the cylinder body is set
It is placed in the top of support column 8, the piston rod extends downward into guide groove 14, and upper 2 both ends of descaling header are provided with
Collect tube socket 13, the upper header seat 13 is set in guide groove 14 and is slidably matched with guide groove 14, the piston rod with it is upper
Collection tube socket 13 is connected；The rear end of the de-scaling cover 7 is connected in the rack of milling train 26 and the two sides of de-scaling cover 7 and branch
Dagger 8 is connected.
When slab enters the progress de-scaling of preposition descaling device, 1 band of lifting hydraulic cylinder can be passed through according to the difference of passage
The guide groove 14 that dynamic upper descaling header 2 is vertically arranged moves, and then realizes the height adjustment of descaling jet 9.With background technique
In the 1st, 3,5 passage de-scalings for, in 1 passage, slab thickness 210mm, de-scaling height be 200mm, in the 3rd passage
When, upper descaling header 2 can be lowered 98mm, de-scaling height is made to be maintained at 200mm by slab thickness 112mm, and the same 5th
When secondary, upper descaling header 2 can be lowered 66mm by slab thickness 46mm again, and de-scaling height remains as 200mm.It is removed on because
Squama collector 2 needs to make elevating movement, and the upper descaling header 2 is preferably by structures such as high-pressure hose 3, telescopic pipes and for water system
System is connected.Displacement sensor can be respectively set on two sides lifting hydraulic cylinder 1, to guarantee the synchronization of two sides lifting hydraulic cylinder 1
Property.Upper descaling header 2 rotates relative to upper header seat 13 in order to prevent, can make to connect by key 12 between the two.
The utility model combines inverted lifting hydraulic cylinder 1 with support column 8, and cylinder body is set to 8 top of support column, living
Stopper rod extends downward into the guide groove 14 of support column 8.For lifting hydraulic cylinder 1, inversion can be effectively prevented tiny
The hammer scale accumulation that de-scaling generates causes the pollution of additional abrasion and hydraulic oil at its port；For support column 8
Speech is not only that inverted lifting hydraulic cylinder 1 provides installation point, and provides support for de-scaling cover 7, can effectively save
There is enough spaces stable support construction is arranged for about space, 8 lower part of support column；7 rear end of de-scaling cover is connected to milling train 26
Rack on, two sides are then supported by support column 8, it can be ensured that the stability of de-scaling cover 7.
As shown in Fig. 2, the utility model provides a kind of preferred embodiment, 7 two sides of de-scaling cover are set respectively
It is equipped with the first connector 18, described first connector, 18 one end is connected in the rack of milling train 26, and the other end is connected to de-scaling cover
The side of body 7, the side of first connector 18 are connected with the second connector 19, and second connector 19 is connected to support
On column 8, the support column 8 is connected by third connector 20 with the rack of milling train 26.
De-scaling cover 7 mainly may including the gravity of itself and associate member, the recoil strength of spray head generation and steel plate nose
The active force of collision is generated to it, these power can decompose vertical direction and the horizontal direction for being parallel to rolling direction, de-scaling
Cover 7 is connect by the first connector 18 with the rack of milling train 26, and the biggish active force for being parallel to rolling direction can be born,
De-scaling cover 7 is connected to support column 8 by the second connector 19, can bear the active force of biggish vertical direction, and third
Connector 20 can then guarantee the stabilization of support column 8 itself.
Slab will appear nose problem, and slab nose may spray after entering descaling device with upper descaling header 2 and de-scaling
Head collides, and descaling header 2 and de-scaling spray head is caused to damage, in order to avoid this problem, setting in the de-scaling cover 7
There is anticollision gusset, the anticollision gusset includes lateral gusset 21 and longitudinal gusset 22, and the transverse direction gusset 21 is perpendicular to rolling side
To, the longitudinal direction gusset 22 is parallel to rolling direction, offers upper header mounting groove 27 below the longitudinal direction gusset 22, it is described on
Descaling header 2 is located in upper header mounting groove 27, and the lower edge of the longitudinal direction gusset 22 is lower than the descaling jet 9 of upper descaling header 2.
Not only booster action can be played to de-scaling cover 7 by anticollision gusset, descaling header 2 and de-scaling thereon can also be protected
Collision of the spray head from slab.
Upper descaling header 2 is moved by guide groove 14 of the upper header seat 13 on support column 8, implementation as shown in Figures 4 and 5
In example, 13 two sides of upper header seat are provided with boss, and boss correspond in the guide groove 14 and is provided with sliding slot, the sliding slot and
Slide plate 16 is provided on the opposite sliding surface of boss.By the cooperation of boss and sliding slot, the steady of upper header seat 13 may be implemented
Fixed lifting, and the setting of slide plate 16 can reduce frictional force, and can replace after wearing.Further, it is also possible in upper header seat
13 are arranged baffle towards the side of slab, enter guide groove 14 with the hammer scale for preventing de-scaling from generating.The guide frame
The settable limited block 15 in lower part, for limiting the lower limit position of upper header lifting, limited block 15 can be by conjunction spiral shell
Bolt 17 is connected to support column 8.
The de-scaling water and iron scale generated below slab is fallen directly down, collection device and pipe can be arranged in lower part
Road discharge, and the de-scaling water and iron scale of slab splashed upward are concentrated mainly on the inside of the arrival end of de-scaling cover 7, in order to receive
Collect these de-scaling water and iron scale, the leading inside of the de-scaling cover 7 is provided with catch basin 24,24 direction of catch basin
The side of descaling jet 9 is provided with inlet 25, and the catch basin 24 is connected with drainpipe 11.The de-scaling water and iron oxide of splashing
Skin enters in catch basin 24 from the inlet 25 of catch basin 24 to be collected, the drainpipe 11 then connected by catch basin 24
Discharge, to solve the collection of the de-scaling water and iron scale above slab.
In order to guarantee scale removal effect, while preventing de-scaling water and iron scale from entering rolling unit, the descaling jet 9 is inverse
It is arranged to rolling direction, then de-scaling water and iron scale can splash away from the front end of de-scaling cover 7, for this problem, institute
The front end outer side for stating de-scaling cover 7 is provided with inverse spray manifold 6, and the inverse spray manifold 6 passes through inverse spirt water pipe 4 and water system phase
It connects, inverse spray spray head 23 is provided in the inverse spray manifold 6, the inverse spray spray head 23 deviation rolling direction setting is used for block
De-scaling water and iron scale prevent it from sputtering de-scaling cover 7.The angle of descaling jet 9 and vertical direction is preferably 10 °~
The angle of 30 °, most preferably 15 °, the inverse spray spray head 23 and vertical direction is preferably 30 °~60 °, most preferably 45 °.De-scaling cover
Longitudinal gusset 22 on 7 can extend to inverse 6 lower section of spray manifold, so that inverse spray spray head 23 against spray manifold 6 and thereon be protected to exempt from
It is collided by slab.
The setting of inverse spray manifold 6 and inverse spirt water pipe 4 and catch basin 24 and drainpipe 11 can increase the perpendicular of de-scaling cover 7
To load, and its front end for being respectively positioned on de-scaling cover 7, biggish moment of flexure can be generated, de-scaling cover 7 deforms in order to prevent,
Supporting support 5 is respectively arranged on the support column 8 of 7 two sides of de-scaling cover, the supporting support 5 is connected to de-scaling cover 7
On, the inverse spirt water pipe 4 and drainpipe 11 are respectively arranged in the supporting support 5 of 7 two sides of de-scaling cover.Supporting support 5 is not
But the gravity of inverse spirt water pipe 4 and drainpipe 11 can be shared, and the gravity of 7 front end of part de-scaling cover can be undertaken, from
And guarantee that structure stress is more reasonable.
Claims (10)
1. the preposition descaling device of roughing mills, including upper descaling header (2) and lower descaling header (10), the upper descaling header
(2) it is mounted on descaling jet (9) with lower descaling header (10), the upper descaling header (2) and lower descaling header (10) are respectively
It is connected with water system, the upper descaling header (2) is connected with the lifting hydraulic cylinder (1) for adjusting de-scaling height, described
Lifting hydraulic cylinder (1) includes cylinder body and is set to the intracorporal piston rod of cylinder, is provided with de-scaling cover above the upper descaling header (2)
Body (7), it is characterised in that:
De-scaling cover (7) two sides are provided with support column (8), and the support column (8) is vertically provided with guide groove (14), institute
The top that cylinder body is set to support column (8) is stated, the piston rod extends downward into guide groove (14), the upper descaling header
(2) both ends are provided with upper header seat (13), the upper header seat (13) be set in guide groove (14) and with guide groove (14)
It is slidably matched, the piston rod is connected with upper header seat (13)；
The rear end of the de-scaling cover (7) is connected in the rack of milling train (26) and the two sides of de-scaling cover (7) and support column
(8) it is connected.
2. the preposition descaling device of roughing mills as described in claim 1, which is characterized in that de-scaling cover (7) two sides point
It is not provided with the first connector (18), described first connector (18) one end is connected in the rack of milling train (26), and the other end connects
It is connected to the side of de-scaling cover (7), the side of first connector (18) is connected with the second connector (19), and described second connects
Fitting (19) is connected on support column (8), and the support column (8) is connected by third connector (20) with the rack of milling train (26)
It connects.
3. the preposition descaling device of roughing mills as claimed in claim 2, which is characterized in that setting in the de-scaling cover (7)
Have an anticollision gusset, the anticollision gusset includes lateral gusset (21) and longitudinal gusset (22), the lateral gusset (21) perpendicular to
Rolling direction, the longitudinal direction gusset (22) are parallel to rolling direction, upper header installation are offered below the longitudinal direction gusset (22)
Slot (27), the upper descaling header (2) are located in upper header mounting groove (27), and the lower edge of the longitudinal direction gusset (22), which is lower than, to be removed
The descaling jet (9) of squama collector (2).
4. the preposition descaling device of roughing mills as described in claim 1, which is characterized in that upper header seat (13) two sides are set
It is equipped with boss, boss is corresponded in the guide groove (14) and is provided with sliding slot, is all provided on the sliding slot sliding surface opposite with boss
It is equipped with slide plate (16).
5. the preposition descaling device of roughing mills as described in claim 1, which is characterized in that guide groove (14) the lower part setting
There are limited block (15).
6. the preposition descaling device of roughing mills as described in claim 1, which is characterized in that the front end of the de-scaling cover (7)
Inside is provided with catch basin (24), and the side of catch basin (24) towards the descaling jet (9) is provided with inlet (25), described
Catch basin (24) is connected with drainpipe (11).
7. the preposition descaling device of roughing mills as claimed in claim 6, which is characterized in that the front end of the de-scaling cover (7)
Outside is provided with inverse spray manifold (6), and the inverse spray manifold (6) is connected by inverse spirt water pipe (4) with water system, described inverse
Inverse spray spray head (23), the reverse rolling direction setting of the descaling jet (9), the inverse spray spray head are provided in spray manifold (6)
(23) it is biased to rolling direction setting.
8. the preposition descaling device of roughing mills as claimed in claim 7, which is characterized in that the descaling jet (9) and vertical
The angle in direction is 10 °~30 °, and the angle of inverse spray spray head (23) and vertical direction is 30 °~60 °.
9. the preposition descaling device of roughing mills as claimed in claim 7, which is characterized in that de-scaling cover (7) two sides
It is respectively arranged on support column (8) supporting support (5), the supporting support (5) is connected on de-scaling cover (7), the inverse spray
Water inlet pipe (4) and drainpipe (11) are respectively arranged in the supporting support (5) of de-scaling cover (7) two sides.
10. the preposition descaling device of roughing mills as described in claim 1, which is characterized in that the upper descaling header (2) passes through
High-pressure hose (3) is connected with water system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920130145.1U CN209577751U (en) | 2019-01-25 | 2019-01-25 | The preposition descaling device of roughing mills |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130145.1U CN209577751U (en) | 2019-01-25 | 2019-01-25 | The preposition descaling device of roughing mills |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530950A (en) * | 2020-05-14 | 2020-08-14 | 安徽尧泰工程技术有限公司 | Door-type slab descaling device of adjustable height |
| CN113664059A (en) * | 2021-08-19 | 2021-11-19 | 一重集团大连工程技术有限公司 | Phosphorus removing machine before vertical roll |
-
2019
- 2019-01-25 CN CN201920130145.1U patent/CN209577751U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530950A (en) * | 2020-05-14 | 2020-08-14 | 安徽尧泰工程技术有限公司 | Door-type slab descaling device of adjustable height |
| CN113664059A (en) * | 2021-08-19 | 2021-11-19 | 一重集团大连工程技术有限公司 | Phosphorus removing machine before vertical roll |
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