CN102343359A

CN102343359A - Temperature maintainance and/or heating apparatus for long metal products and the corresponding method

Info

Publication number: CN102343359A
Application number: CN201010259146XA
Authority: CN
Inventors: 詹皮托·本得特
Original assignee: Danieli and C Officine Meccaniche SpA
Current assignee: Danieli and C Officine Meccaniche SpA
Priority date: 2010-07-21
Filing date: 2010-08-18
Publication date: 2012-02-08
Also published as: RU2537674C2; US20120018111A1; MX2010009066A; RU2010135761A; IT1402240B1; ITUD20100150A1; EP2410272A1; BRPI1002945A2; KR20120011755A

Abstract

The invnetion concerns a temperature maintainance and/or heating apparatus for long metal products and a corresponding method. The long products are continuously cast and sheared to size by means of shearing means (15) so as to define segments of bloom. The apparatus is disposed between a casting machine (11)and a rolling line (30). The apparatus comprises a mobile movement section (20) of the bloom segments disposed downstream of the shearing means (15), a first mobile line (20), a second mobile line (21), and a furnace (24)disposed downstream of the mobile movement section (20). The furnace (24) coimprises an entrance rollerway (25), an exit rollerway (27) and a traverse transmission tool (46, 47).

Description

The temperature that is used for the elongated metal product keeps and/or possibility heater and correlation technique

Technical field

The present invention relates to be used for casting continuously the temperature maintenance and/or the possibility heater (temperature maintenance and/or possible heating apparatus) of elongated products, and generally be used for so that partly the casting of shutdown mode (semi-endless mode) and continuing rolling apparatus are made the for example relevant method of bar, wire rod, beam, track or section bar of elongated metal rolled products.

Background of invention

The continuous casting equipment that present technology is known in this area is used to produce microscler rolled products has sizable limitation; Promptly because performance-relevant intrinsic with operation constraint and parts, the production capacity of continuous casting equipment be no more than usually the 25-40 ton/hour.

Therefore, in order to obtain higher production capacity, must increase the quantity of the foudry line that is connected with same roll line, this quantity can be up to 8 lines or more.

This causes, and except other, therefore square billet or blank that need translation is left away from various foudry lines on the single entrance of heating furnace have temperature loss during transmitting.

Result as this consideration; Need infeed suitable lot of energy to heating furnace; Lose with compensation temperature, and temperature is become the rolling value that is suitable in the scope that is included between 1050 ℃ to 1200 ℃ from the entry value that is included between 650 ℃ to 750 ℃.

In addition; Need be sent to them to the sections of square billet or blank from various foudry lines and be introduced into the position the stove; This has limited length and has therefore limited weight: the length of square billet or blank is included between 12 to 14 meters, and until 16 meters maximum, and weight average equals the 2-3 ton.

These process necessity are the main causes that heating square billet or blank institute energy requirement increase with restriction; And be to hinder the main cause that realizes maximum productivity; Said necessity all is because of being used for the required large-scale tundish of a plurality of foudry lines but also because the square billet that under the identical ton/hourage of producing, will handle or the huge quantity of blank with limiting the two; And the crop that causes thus; Head in the inlet of the support that i.e. entering is ground; High quantity, and inferior length with non-commercial size.

In order to overcome this shortcoming, the quantity of foudry line has been reduced to only two, this provide reception from two lines blank and make them can be that the used suitable temperature of the roll line that is positioned at downstream keeps and/or maybe heater.

Therefore; The temperature that an object of the present invention is to propose to be used for to cast continuously the elongated metal product keeps and/or maybe heater and correlation technique, and said method is associated with two foudry lines and allows to manage with simple and reliable mode the sections of the foundry goods that is cut into due size.

Another object of the present invention is along whole production line; And keeping inner particularly with the possibility heater; Farthest utilize the initial thermal content that liquid steel had; Reduced foundry goods clipped to due size and it being delivered to the temperature loss in the time between the rolling step, thereby obtained to compare the considerable energy saving and the minimizing of operating cost with common process.

Further purpose of the present invention is:

Under the situation of the casting process that does not interrupt the upper reaches, allow roll mill (rolling mill), the shutdown of especially rolling unit (rolling train), thus obtain high utility factor;

In emergency circumstances or according to the waste material between the down period of rules being reduced to minimum or avoiding fully; And therefore reclaim fully temporarily to accumulate in these cases and keep and/or the inner product of possibility heater; Thereby allow to obtain higher productive rate, productive rate equals the ratio between the weight of weight and liquid steel of final products;

Make partly not that the performance of stopping process more approaches not stopping process (endless process), promptly do not influence the continuity between continuous casting machine and the roll line;

Possibility in the variation on scale and type that guarantees under the situation that does not stop to cast continuously to produce obtains higher utility factor.

The applicant proposes, tests and implemented the present invention, with the shortcoming that overcomes technology present in this area and obtain above-mentioned purpose and advantage and other purposes and advantage.

Summary of the invention

The present invention proposes in independent claims and shows characteristic, and dependent claims has been described the variant of main invention intention.

Provide the temperature that is used for the elongated metal product according to the present invention to keep and/or the possibility heater; Said device is used for the production of microscler rolled products in casting of partly not shutting down type and continuing rolling apparatus, and is disposed between the roll line in continuous casting machine with two foudry lines and downstream.

The cutting implement that continuously cast metal product closely is arranged in the downstream of casting machine is cut into due size; Thereby the sections of blank is defined as predetermined length; Said predetermined length advantageously comprises between 16m to 60m, preferably between 30m to 40m.

Roll line is arranged to respect to the foudry line skew with parallel.

Each foudry line has crystallizer separately, and crystallizer can be with respect to the variable velocity cast article of thickness with 3m/min to 9m/min.

In specification and claim,, mean that the ratio that has between long limit and the minor face is included between 1 to 4, rectangle or the product of square sectional between the square-section that reaches 4 times promptly can grow tall than minor face on square sectional and long limit for the term blank.

In the present invention; The cross section of the product of being cast is not restricted to; As described; Has square or square-section straight and parallel in twos limit; But also comprise have at least one crooked; Recessed or protruding limit advantageously rather than inevitably is the cross section facing each other and combination that becomes geometric shape mirror image or above-mentioned.

Simply, for example, had the size that can between about 100mm * 100mm, 130mm * 130mm, 150mm * 150mm, 160mm * 160mm or intermediate sizes, change by the square sectional of each continuous casting line production; In order to improve production capacity, also can produce square-section with the size that between 100mm * 140mm, 130mm * 180mm, 130mm * 210mm, 140mm * 190mm, 160mm * 210mm, 160mm * 280mm, 180mm * 300mm, 200mm * 320mm or intermediate sizes, changes.Under the situation of producing average profile, can use bigger size cross section, for example about 300mm * 400mm and similar.

According to maintenance of the present invention and/or maybe heater be positioned at the downstream of casting machine; The sections of said blank that is cut into due size is at least 1000 ℃, is preferably incorporated under the mean temperature between about 1100 ℃ to about 1150 ℃ directly and under the situation about moving in the middle of not having to get into and/or be conveyed in the said device.The mean temperature that blank is left away from device is included between about 1050 ℃ to 1200 ℃.

According to characteristic of the present invention; Temperature maintenance and/or possibility heater comprise removable motion parts (mobile movement section) and have the stove of cross drive; Wherein removable motion parts is disposed between the cutting implement that is used to be cut into due size and the horizontal stove, and is used for moving the blank sections by two foudry lines castings.This motion parts comprises:

The first removable line (mobile line); It is arranged in primary importance with first foudry line and aims at; Thereby receive the blank sections from first foudry line; And in the second place, be arranged to transmitter shaft and aim at, this transmitter shaft then with lead to horizontal stove in entering roller-way (entrance rollerway) aim at;

The second removable line; It is arranged in primary importance with second foudry line and aims at; Thereby receive the blank sections be sheared from second foudry line, and in the second place, be arranged to said transmitter shaft and aim at, so that the blank sections is discharged in horizontal furnace interior.

The corresponding primary importance of the removable line of motion and the second place are mutually independently, thereby allow to make the casting process of two lines independent mutually, and prevent its any interruption.

Stove with cross drive is disposed in the downstream of the removable motion parts of blank, and comprise said entering roller-way, with respect to the means of transportation (transfer device) of leaving away or removing roller-way and being used for the blank sections is sent to from the entering roller-way roller-way of leaving away that gets into the parallel and skew of roller-way and aims at the roll line in downstream.

According to version of the present invention; In being used to be cut into also have between instrument and the removable motion parts of due size and having the first fixing fixing fixedly motion parts of the line of motion (fixed movement section) of the line of motion and second of blank sections, first fixedly the line of motion and second fixedly each in the line of motion be used for respectively the blank sections from first foudry line towards the first removable line of motion transportation and respectively the blank sections from second foudry line towards the second removable line of motion transportation.

In some operating condition of equipment, fixedly motion parts receives the blank sections that arrives from foudry line during advantageously allowing removable line at removable motion parts still the blank sections being discharged in the step of furnace interior.This allow to exist, and for example, having under the situation of very high casting speed provides better continuity and uniformity for the transmission of blank sections.

According to another version, the stove with cross drive comprises buffer, or supports object plane or storage area, temporarily to hold the blank sections that temporarily is arranged in furnace interior.

Buffer is disposed in the entering roller-way of stove and leaves away between the roller-way.

According to another characteristic of the present invention; The cross drive instrument comprise the blank sections from the displacement facility that gets into roller-way and transmit towards the buffer that holds blank and from buffer extract the blank sections out so that the blank sections thereby to can be the roller-way of leaving away used and make the blank sections can be the used extraction instrument of roll line.

The stove and accessory of device of the present invention has can be at least between about 16 meters to about 60 meters, the length that preferably between 30m to 40m, changes.

Buffer is as the holder that gathers to blank; For example must overcome owing to the roll of accident or rules is changed (prodrammed roll-change) or during the interruption of the operation of rolling that the variation of producing causes; Avoid the loss of any material and energy by this way; And; Most important, avoid any interruption of casting.Device allow in addition can reach 60/80 minute (under maximum casting speed) and longer time accumulated blank, and under any circumstance all be variable during Equipment Design.

This allows to improve equipment significantly usage factor.

Because the capacity that gathers of stove owing to following reason, has also improved gross production rate:

The number that reduces or avoided casting to begin again, thus the waste materials when casting begins and finishes saved;

Taking place; For example during the unexpected obstruction in the roll mill that causes by cobble; To not be to go out of use from the steel that begins to form of tundish (its liquid steel is unloaded into the crystallizer) to roll mill, and the steel that often can not be recovered that is retained in the steel ladle neither go out of use;

Under the situation of the obstruction that roll mill meets accident; The blank of in one or more supports, being controlled can be returned furnace interior, and is maintained at furnace interior, and also keeps temperature; This has prevented any cutting apart (segmentation), and therefore prevents any loss of material.

According to another characteristic of the present invention; The optimization length of blank sections; And the optimization length that therefore must hold the stove of blank sections, be selected minimizing and because the function of the loss of the material that crop, stub and cobble cause as the minimum of a value of the linear combination of the heat loss in the stove.

The invention still further relates to a kind of method, in the method, the step that in two foudry lines, casts continuously; The product of being cast is cut into due size and is passed to stove, carries out following step then respectively.

The introducing of blank sections is had in the removable motion parts of two removable lines of motion, and each removable line of motion is suitable for receiving the blank sections from corresponding foudry line.

In follow-up step; In case the blank sections is loaded on the removable line of motion; A feedstock direction transverse to blank in the removable line of motion moves, himself aim at thereby make with transmitter shaft, transmitter shaft then with lead to horizontal stove in the entering roller-way aim at.Carry out then being loaded in the step in the stove through said entering roller-way.

For another removable line of motion, be provided at after the step as described above or similar step before.

In stove, laterally translation is with on the roller-way of leaving away that is disposed in stove for blank sections quilt, and this allows blank sections to be infeeded in the feed mill (feed mill) in the downstream that are arranged in device.

According to characteristic feature, stove is provided with and is getting into roller-way and the buffer between the roller-way of leaving away, and in buffer, the blank sections is retained a period of time relevant with the size of blank sections.

Description of drawings

These and other characteristic of the present invention will become obviously with reference to the description of accompanying drawing from following preferred form to the embodiment that provides as non-restrictive example, in the accompanying drawings:

Fig. 1 illustrates the possible layout that is provided with according to the rolling equipment of temperature maintenance of the present invention and/or possibility heater;

Fig. 2 shows the plane according to holding device of the present invention;

Fig. 3 shows the cutaway view from III to III of Fig. 2;

Fig. 4 shows the cutaway view from IV to IV of Fig. 2;

Fig. 5 and 6 shows with Fig. 4 different working and disposes;

Fig. 7 shows the cutaway view from VII to VII of Fig. 2;

Fig. 8-11 shows the embodiment in some different cross section of the apparatus for casting that can utilize among Fig. 1;

The specific embodiment

With reference to accompanying drawing, Fig. 1 shows first embodiment according to the layout 14 of the equipment that is used to produce elongated products of the present invention, keeps and/or possibly be installed in the said equipment by heater 10 according to temperature of the present invention.

Layout 14 among Fig. 1 comprises; Shown in fundamental in; The continuous casting machine 11 that comprises two foudry lines; Said two foudry lines are respectively first foudry line 12 and second foudry line 13; First foudry line 12 and second foudry line 13 launch parallel to each other; Each use in first foudry line 12 and second foudry line 13 be suitable for casting have square or square-section and have different shape with size, have straight, crooked, recessed or protruding limit, or the crystallizer of other blank or other instruments.Fig. 8-11 shows some embodiment in the cross section that can cast with the present invention, it shows square-section (Fig. 8) with straight and parallel limit respectively, have the minor face that has convex curvature and straight and parallel long limit cross section (Fig. 9), have and have in the cross section (Figure 10) on the minor face of the convex curvature of center and straight and parallel long limit and have the minor face that has recessed curvature and the cross section (Figure 11) on straight and parallel long limit.

Quite be apparent that, also can make identical consideration blank with square sectional.

Advantageously, for the situation of square-section, the layout 10 of this casting and rolling equipment allows the blank that acquisition has high metric system weight (metricweight) under the situation of given same profile height or thickness.

By this way, realized discontinuous or stopping process not partly, but had, because to installing 10 parameter control, with the process that does not have the interruption on the continuity or the very approaching productive rate of productive rate of shutdown mode not.

But but first foudry line 12 and second foudry line 13 (Fig. 1) are disposed in mutual skew are parallel and with respect to single roll line 30 skews that are disposed in downstream on the parallel line; First foudry line 12 and second foudry line 13 are cast two blanks abreast; Said two blanks preferably have the cross section of identical square or rectangle, and the two all infeeds the roll mill 31 that is positioned at downstream.

Be useful in the downstream of first foudry line 12 and second foudry line 13 and be trimmed to the cutting implement 15 that size should be arranged; For example scissors or oxygen lance (oxy cutting torch); It is cut into the sections with desired length with the blank that is cast, and below is called the blank sections.Advantageously, blank is cut into the sections that has than the length of long 1 to 5 times of the length in the technology present in this area, and according to the present invention, length be included in 16 meters to 80 meters or longer between, preferably between 30 meters to 60 meters.By this way, the blank that acquisition has big, higher 5 times to 15 times than the weight in the technology present in this area weight, according to the present invention, it is included between 10 tons to 50 tons.

By this way; Though different layouts is configured to partly not shutdown mode operation; But because layout begins from the sections that is cut into due size; So the blank with big length and big linear weight is being operated under the condition for continuous allowing during the normal operating conditions basically, this obtains very near the performance of the performance of shutdown mode not.

Device 10 (Fig. 1 and 2) are installed in the downstream of continuous casting machine 11; And be adjacent to and be used to be cut into after the cutting implement 15 of due size, and comprise possible fixedly motion parts 18, removable motion parts 19 and horizontal maintenance and/or maybe heating furnace 24.

Fixedly motion parts 18 comprises that reception is by the first fixing second fixing line of motion 17 (below be called second static line) of the blank sections cast by second foudry line 13 of the line of motion 16 (below be called first static line) and reception of the blank sections of first foudry line 12 casting.

(Fig. 3) particularly; First static line 16 and second static line 17 are aimed at first foudry line 12 and second foudry line 13 respectively; And each comprises roller-way first static line 16 and second static line 17; Said roller-way comprises the draw roll 36 that flexibly infeeds the blank sections suitably, and it is installed in border seal and is isolated transport channel 35 inside with the temperature loss that reduces the blank sections suitably.Simply, for example, getting into fixedly, the blank sections of motion parts has the temperature that is included between about 1100 ℃ to 1150 ℃.

Fixedly the major function of motion parts 18 is, 18 pairs of motion parts are unpunctual fully with fixedly as yet under the operating condition that removable motion parts is being confirmed, temporarily hold the blank sections that the instrument of being sheared 15 is sheared.

Removable motion parts 19 (Fig. 1) comprises that then the first removable line of motion 20 (below be called the first removable line) that receives the blank sections from first static line 16 and reception are from the second removable line of motion 21 of the blank sections of second static line 17 (below be called the second removable line).

(Fig. 2 and Fig. 4-6) particularly, the first removable line 20 and the second removable line 21 the two each comprise a plurality of motion sliders 37, motion slider 37 is motorized, and the track of transversely arranging in the feedstock direction of blank sections 39 slides.

The basic element of character of motion slider 37 comprises draw roll 40 and transmission channels 43, and each in the draw roll 40 is driven member 41 rotations, and transmission channels 43 is closed suitably and isolated to limit the temperature loss of blank sections.Under any circumstance all must suppress temperature loss, make that the blank sections in removable motion parts 19 is maintained at the mean temperature that is included between 1090 ℃ to 1140 ℃.

The two all is suitable for the first removable line and the second removable line 21 a blank sections that is loaded on the first removable line and the second removable line 21 is transmitted in the horizontal stove 24.Especially; Receive in the state of blank (Fig. 4) at two

removable lines

20,21; Two

removable lines

20,21 are ideally aimed at first static line 16 and second static line 17 respectively; And when being transmitted into the blank sections in the stove 24; Two

removable lines

20,21 laterally and independently of each other move; Aim at transmitter shaft 23 up to being loaded in two blank sections on the

removable line

20,21, transmitter shaft 23 is then aimed at the entering roller-way 25 that is used for making the blank sections get into stove 24.

Transmitter shaft 23 makes the latter to aim at transmitter shaft 23 in the suitable moment during loading stove 24 in the centre position with respect to the first removable line 20 and the second removable line 21.

More specifically, Fig. 5 show the first removable line 20 receiving from the position of the blank sections of first foudry line 12 the motion slider 37 of the second removable line 21 in the state of unloading blank sections by the state of displacement laterally.

In an identical manner, Fig. 6 show the first removable line 20 motion slider 37 in the position of unloading blank sections by displacement laterally and the second removable line 21 is receiving from the state in the state of the blank sections of second foudry line 13.

The self-movement of motion slider 37 advantageously makes two

foudry lines

12,13 be independent of each other, and therefore also is provided at the method for stove 24 internal delivery blank sections.

As described in us; Therefore fixedly the major function of motion parts 18 is to allow from the advancing of foudry line 12 or the 13 blank sections that arrive, though in

removable line

20 or 21 one unloaded state under and therefore the time in the position that is not suitable for receiving from the blank sections of casting arrival.

Yet; Be clear that; According to other embodiments; Through combining to be transmitted into the speed in the stove 24, might avoid the fixedly insertion of motion parts 18 through directly being loaded in

removable line

20,21 to a blank sections from foudry line arrival along pace and the blank sections of the blank sections of removable line.

Get into roller-way 25 at stove 24 internal delivery blank sections (Fig. 7); And lateral displacement instrument 46 is used for the blank sections is moved to buffer 26 or temporarily holds holder from getting into roller-way 25, so that the roll line 30 that the blank sections can be the downstream that are disposed in stove 24 in the suitable moment is used.

Buffer has the capacity that holds of about 18 the blank sections in expression property ground, and it is according to the cross section size variation, and buffer has six positions that are used to heat sections.Simply, for example, stove 24 can be handled the amount of about 145 tons/hour product.

The blank sections depends on the concrete operating condition of equipment in buffer 26 inner location.If buffer 26 is idle; Blank is placed on the end region of buffer 26 so; Near the roller-way 27 of leaving away accordingly; And if on buffer 26, had other blanks; If perhaps roll mill has the production capacity that is lower than casting; If perhaps roll line 22 is stopped for a certain reason; Then the new blank of Dao Daing is placed into the formation of the back that is arranged in the blank that has gathered, and all then blanks that is cushioned are shifted onto together towards the position of outside by said lateral displacement instrument.In another embodiment, can not use above-mentioned lateral displacement instrument, and be to use a plurality of step rates longitudinally that provide motion to realize being placed on moving of blank on the buffer.

Extraction instrument 47 is used for optionally extracting the blank sections out from buffer 26, the blank sections is loaded on the roller-way 27 of leaving away that roll lines 30 stove 24 and downstream aim at.

Get into roller-way 25 and be respectively arranged with a plurality of motor-driven draw rolls 49 and draw roll 50 separately with the roller-way 27 of leaving away; Draw roll 49 relative to each other arranges along the whole extension of stove 24 with draw roll 50 equidistantly, and is disposed in stove 24 outside drive member and drives.

The temperature of leaving the blank sections of stove 24 is included between 1100 ℃ to 1150 ℃, advantageously 1130 ℃.

Roll line 30 is provided with other cutting implements 33 of the known type at the upper reaches that are disposed in roll mill 31.

Stove 24 not only form two

foudry lines

12 and 13 with roll line 22 between horizontal the connection, and have following function and with following pattern work:

It is as the chamber that only keeps the temperature of blank sections.In this configuration, said chamber guarantees that temperature is maintained between the entrance and exit;

It is as the heating furnace to the blank sections, the temperature of rising carrier between entrance and exit;

It is the holder of the continuous casting machine 11 and the different production ability of the roll mill 31 that is positioned at downstream by way of compensation also.

In addition; If make the outage of roll mill 31 owing to accident or owing to the roll replacing of rules or owing to the variation of producing; Lateral displacement instrument 46 continues at the blank sections of buffer 26 accumulated inside from two

foudry lines

12 and 13 arrival so, and extraction instrument 47 keeps static.

Buffer 26 allows to produce variation, is provided at the possibility of the buffer time that changes in the as many as 60/80 minute, and continuous casting machine 11 is stopped or slowing down.

In an identical manner, owing to need to reduce production capacity, might only make a foudry line operation, and therefore only make a

removable line

20 or 21 operations, and need not stop entire equipment.

Optimization length by each foudry line 12 and the 13 blank sections of casting; And the optimization length that therefore must hold the stove 14 of blank sections, according to selecting in the minimizing of the minimum of a value of the linear combination of the inner heat loss of stove 14 and along the loss that roll line 30 takes place by the material that crop, stub and waste product caused.

Because the optimization length of blank sections calculates as the function of the relevant consumption parameter of the length with the blank sections of stove 24, so the optimization length of blank sections also is virtuous to the optimization length of confirming stove 24 self.In fact, stove 24 will have the optimization length of the optimization length that equals the blank sections at least, only if provide the safe clearance of taking into account with structural adjustment on possible blank sections that is cut into out-of-size and the necessary size.

By this way, confirmed optimal operating condition for the cooperation of continuous casting machine 11 and roll mill 31.

Another parameter that special relationship is arranged is the very big minimizing of consumption that infeeds natural gas or other fuel of stove 24, compares with the solution of routine and has reduced up to 50%.

Layout 14 (Fig. 1) can under any circumstance provide other instruments, for example is close to the unit in cross section of minimizing rolled products in the upper reaches or the downstream of holding device 10, or the temperature of blank is adjusted to the heating inductor that is suitable for follow-up rolling value.

Claims

1. a temperature that is used for elongated products keeps and/or the possibility heater; Said elongated products is cast and be sheared instrument (15) continuously thereby being cut into due size limits the blank sections; Said device is disposed in the casting machine (11) with first foudry line (12) and second foudry line (13) and is disposed in the downstream of said casting machine (11) so that make between the roll line (30) of microscler rolled metal product; It is characterized in that said device comprises:

The removable motion parts (20) of said blank sections; Said removable motion parts (20) is disposed in the downstream of said cutting implement (15); And comprise the first removable line (20) and the second removable line (21); The said first removable line (20) and the said second removable line (21) are suitable for moving transverse to the direction of advance of said blank sections; To move to the primary importance and the second place; In said primary importance; The said removable line (20) and/or the said second removable line (21) are aimed at said first foudry line (12) and said second foudry line (13) respectively; In the said second place, in any in the said first removable line (20) or the said second removable line (21) one aims at transmitter shaft (23);

Stove (24); It is disposed in the downstream of said removable motion parts (20); Said stove (24) comprises the entering roller-way of aiming at said transmitter shaft (23) (25) that is used for said blank sections, the roller-way of aiming at said roll line (30) of leaving away (27), and is suitable for said blank sections from the cross drive instrument (46,47) of said entering roller-way (25) towards the said roller-way of leaving away (26) transmission.

2. device according to claim 1; It is characterized in that; Said device also comprises fixedly motion parts (18); Said fixedly motion parts (18) is disposed between said cutting implement (15) and the said removable motion parts (19); Said fixedly motion parts (18) comprises first static line (16) and second static line (17); Said first static line (16) is aimed at said first foudry line (12); Be suitable for being moved towards the said first removable line (20) by the said blank sections of said first foudry line (12) casting; Said second static line (17) is aimed at said second foudry line (13), and is suitable for being moved towards the said second removable line (21) by the said blank sections of said second foudry line (13) casting.

3. device according to claim 1 and 2; It is characterized in that; Each comprises Move tool (37) the said first removable line (20) and the said second removable line (21), and said Move tool (37) is gone up at the induction element of arranging transverse to the said direction of advance of said blank sections (39) and slided.

4. according to each described device in the aforementioned claim; It is characterized in that; Said stove (24) comprises buffer (26); Said buffer (26) is disposed between said entering roller-way (25) and the said roller-way of leaving away (27), temporarily to hold the said blank sections from said first foudry line (12) and said second foudry line (13).

5. device according to claim 4; It is characterized in that, the said cross drive instrument of said stove (24) comprise the displacement facility (46) that is suitable for said blank sections is transmitted towards said buffer (26) from said entering roller-way (25) be suitable for optionally one the said blank sections from said buffer (26) extraction said blank sections is arranged in the extraction instrument (47) on the said roller-way of leaving away (27).

6. one kind is used for the temperature maintenance of elongated metal product and/or the method that possibly heat; Said elongated metal product is cast by continuous casting machine (11) continuously; Said continuous casting machine (11) has first foudry line (12) and second foudry line (13); Said elongated metal product is sheared instrument (15) thereby being cut into due size limits the blank sections; And the roll line (30) in the downstream that kept by the temperature that is arranged in said blank sections then and/or maybe heater is rolling; It is characterized in that said method comprises:

First step in this step, is provided with said blank sections introducing in the removable motion parts (19) of the first removable line (20) and the second removable line (21), and said first step comprises:

First substep in this first substep, is arranged in the said first removable line of aiming at said first foudry line (12) (20) being introduced by the said blank sections of said first foudry line (12) casting; And

Second substep in this second substep, is arranged in the said second removable line of aiming at said second foudry line (13) (21) being introduced by the said blank sections of said second foudry line (13) casting;

Second step; In this step; Said blank sections is loaded in the stove (24); Said second step provides the lateral displacement of the said first removable line (20) or the said second removable line (21); So that it is aimed at transmitter shaft (23), and then said blank sections is unloaded in said stove (24) and the entering roller-way (25) that said transmitter shaft (23) is aimed at;

The 3rd cross drive step in this step, in said stove (24) inside, by means of cross drive instrument (46,47), is sent to said blank sections the roller-way of aiming at said roll line (31) of leaving away (27) of said stove (24) from said entering roller-way (25).

7. method according to claim 6; It is characterized in that; Before said first step; Said method provides to be had said blank sections introducing in the fixedly motion parts (18) of first static line of aiming at said first foudry line (12) (16) and second static line of aiming at said second foudry line (13) (17), and said blank sections is sent to the said first removable line (20) and is sent to the said second removable line (21) from said second static line (17) respectively from said first static line (16).

8. according to claim 6 or 7 described methods; It is characterized in that; Said the 3rd cross drive step comprises: said blank sections laterally is transferred to first substep the buffer (26) and optionally extracts out said blank sections said blank sections be arranged on the said roller-way of leaving away (27) and make said blank sections from said buffer (26) from said entering roller-way (25) is the second available substep for said roll line (30).

9. according to each described method in the claim 6 to 8, it is characterized in that said blank sections introducing is had in the said stove (24) of the mean temperature that is included between 1060 ℃ to 1110 ℃.

10. according to each described method in the claim 6 to 9, it is characterized in that, be included between 1050 ℃ to 1200 ℃ from the temperature of said stove (24) when leaving.

11., it is characterized in that said blank sections has the total length that is included between the 16m to 60m according to each described method in the claim 6 to 10.

12. method according to claim 11 is characterized in that, said blank sections has the total length that is included between the 30m to 40m.