CN107475507A - The multilayer of chamber-type heating furnace lays slab method - Google Patents
The multilayer of chamber-type heating furnace lays slab method Download PDFInfo
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- CN107475507A CN107475507A CN201610402879.1A CN201610402879A CN107475507A CN 107475507 A CN107475507 A CN 107475507A CN 201610402879 A CN201610402879 A CN 201610402879A CN 107475507 A CN107475507 A CN 107475507A
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- slab
- heating furnace
- upper strata
- multilayer
- chamber
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/70—Furnaces for ingots, i.e. soaking pits
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The invention discloses a kind of multilayer of chamber-type heating furnace to lay slab method, comprises the following steps：Heating furnace is warming up to steel loading temperature；Place lower floor's slab；Record shape, size, thickness and its position coordinates in heating furnace of lower plywood base；Set shape, size, thickness and its position coordinates in heating furnace of upper strata slab；According to the shape of upper strata slab, size, multiple cushion blocks are set in the upper surface of lower floor's slab；Record pad thickness；Place upper strata slab；Heat stove heat.The multilayer of the chamber-type heating furnace of the present invention, which lays slab method, to greatly reduce energy resource consumption, and improve production efficiency in same cloth discharge position holding multiple pieces blank.
Description
Technical field
The present invention relates to heating of plate blank method, more specifically to a kind of multilayer of chamber-type heating furnace
Lay slab method.
Background technology
At present, domestic iron and steel enterprises can more use chamber-type heating furnace, room during the manufacturing
The characteristics of formula heating furnace is that an only heating chamber and a fire door, chamber-type heating furnace are fired using natural gas
Burn heating.
The heating technical process of chamber-type heating furnace has including step：
The slab for being included in stove heat in advance is placed on bin first, then fills extractor from bin by plate
Base is picked up, and slab is placed into one layer in heating furnace by regulation track, then by needed for all batches
After the slab of heating is all put into heating furnace, fire door is closed, starts firing up, reaches Process Planning
After the temperature that sets the goal and soaking time, it can apply for that slab is come out of the stove.Finally, dress extractor starts slab
Take out, be placed on rollgang out of stove, rolled slab is delivered to after milling train by rollgang.
In production, due to the diversified of product specification and it is only capable of entering for the laminate base being layed in stove
Row heating, often a stove can only fill one piece or two blocks of blanks, and such mode heat utilization rate is extremely low,
Energy consumption is heated by serious waste, while can also reduce the production efficiency of enterprise.
As shown in Fig. 1 a~1h, existing distributing mode can expire the service condition of existing distributing mode
Foot breadth degree 600mm---2500mm, length 1200mm-4000mm difference blanks enter stove, dress
For furnace volume from 1 piece to 8 pieces, wherein Fig. 1 c~1f distributing mode is the most square using ground
Method.
In addition, existing tapping mode is：
Dress extractor receives blank position coordinate (x, y, z), and feeding is gone according to the coordinate.
Because existing distributing mode is designed without considering sotck thinkness that (batch-type furnace field is also at present
Do not account for the distributing mode of thickness), when producing thin material (base, width are very big among often),
According to current distributing mode, distributing mode one, two, three can only be selected, due to expecting that thin thing is light,
Shove charge block number is few, causes heat utilization rate extremely low, and heating energy consumption is by serious waste, while production efficiency
Also had a strong impact on.
The content of the invention
The thickness of slab is not considered when producing slab for heating furnace present in prior art, and is imitated
The low-down problem of rate, it is an object of the invention to provide a kind of multilayer of chamber-type heating furnace to lay slab side
Method.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of multilayer of chamber-type heating furnace lays slab method, comprises the following steps：Heating furnace is warming up to
Steel loading temperature；Place lower floor's slab；Record the shape of lower plywood base, size, thickness and its heating
Position coordinates in stove；Set shape, size, thickness and its position in heating furnace of upper strata slab
Put coordinate；According to the shape of upper strata slab, size, multiple cushion blocks are set in the upper surface of lower floor's slab；
Record pad thickness；Place upper strata slab；Heat stove heat.
According to one embodiment of the invention, the step of heating stove heat, includes：It is warming up to middle transition temperature
Degree；Held for some time；It is warming up to tapping temperature；Insulation a period of time；Cooling 30 minutes；Tapping.
According to one embodiment of the invention, tapping step includes：Read the position coordinates of upper strata slab；
According to pad thickness and slab thickness, the position coordinates of processing upper strata slab；According to the upper strata after processing
The position coordinates of slab takes out upper strata slab；Cushion block is removed according to the position of cushion block；According to lower floor's slab
Position coordinates take out lower floor slab.
According to one embodiment of the invention, the length and width of cushion block are a height of：200mm×200mm×
200mm。
In the above-mentioned technical solutions, the multilayer of chamber-type heating furnace of the invention lay slab method can be
Same cloth discharge position holding multiple pieces blank, greatly reduces energy resource consumption, and improve production efficiency.
Brief description of the drawings
Fig. 1 a~1h are the schematic diagrames of existing distributing mode；
Fig. 2 is that the multilayer of chamber-type heating furnace of the present invention lays the flow chart of slab method；
Fig. 3 is the structural representation of slab and its cushion block.
Embodiment
Technical scheme is further illustrated with reference to the accompanying drawings and examples.
Reference picture 2, the present invention disclose a kind of multilayer of chamber-type heating furnace and lay slab (cloth) method,
Its operation principle is that same position places two blocks of blanks in stove, and it mainly comprises the following steps：
S1：Heating furnace is warming up to steel loading temperature；
S2：Place lower floor's slab；
S3：Record shape, size, thickness and its position coordinates in heating furnace of lower plywood base；
S4：Set shape, size, thickness and its position coordinates in heating furnace of upper strata slab；
S5：According to the shape of upper strata slab, size, multiple cushion blocks are set in the upper surface of lower floor's slab；
S6：Record pad thickness；
S7：Place upper strata slab；
S8：Heat stove heat.
The main purpose of above-mentioned steps is the position of accurate recording lower floor slab, so as to according to lower floor's slab
Position determine the position of upper strata slab.In the case of multilayer slab, then most bottom is now determined successively
The position of layer (first layer) slab, secondly determines the second layer, third layer ... n-th layer upwards successively
The position of slab.Except recording above-mentioned respective position, the thickness of each block of slab is also recorded.By
It is different in the thickness of each laminate base, therefore the thickness of slab determines the position (height) of slab,
This altitude information is even more important in tapping, determines the working depth and working position of tapping mechanical arm
Put.
The position of each block of slab is represented with position coordinates (x, y, z), passes through the seat of four end points
Cursor position determines position of each block of slab in heating furnace.
As shown in figure 3, in actual production, to prevent material edge or middle appearance in heating process
Deformation and convenient tapping are scratched, 5 200mm*200mm*200mm are placed between two boards base 1
Cushion block 2：The cushion block 2 of corner, its edge are and middle apart from the edge about 100mm of slab 1
Cushion block 2, positioned at the centre position of slab 1.
Further, the step of heating stove heat includes：Steel loading temperature ----heating-up time --- middle transition
Temperature ----soaking time ----middle transition temperature ----heating-up time ----tapping temperature ----soaking time
----tapping temperature --- -30min---- taps.Specifically, it is divided into following each step：
S9：It is warming up to middle transition temperature；
S10：Held for some time；
S11：It is warming up to tapping temperature；
S12：Insulation a period of time；
S13：Cooling 30 minutes；
S14：Tapping.
Merely by increase cushion block realize method that multilayer slab is processed jointly be it is infeasible, its
Reason is that：Even if by such method multilayer slab is formd to process jointly, but in tapping
It is uneven due to temperature, except for the ground floor above the slab of each layer can be all damaged in tapping.
On the other hand, because the present invention increases cushion block, and cushion block and slab be due to the difference of material, its
Temperature difference still can be formed between slab, air in insulating process.
Therefore, set compared to existing heating furnace heating procedure, heating procedure of the invention common
After determining middle transition temperature-heating-insulation flow, the step of cooling down 30 minutes is added in addition, this
It is due to two pieces or polylith slab have been provided with heating furnace, it is therefore desirable to which extra cooling step makes
Temperature (air themperature, cushion block temperature and board briquette) in heating furnace reaches certain heating power and put down
Weighing apparatus.The cool time of 30 minutes can both to be formed sufficiently between air, cushion block and slab three
Heat exchange, it is too low to be unlikely to cool time long temperature when causing the slab to tap again.
Further, tapping step includes：Dress extractor receives slab (blank) position coordinate
(x, y, z), system handle the coordinate, go to take by (x, y, z+ slab thickness+pad thickness)
A block above, after upper fabric is come out of the stove, go to take the second block according to coordinate (x, y, z), can be with
It is summarised as 2 following main points：
1st, the positional information of same position difference blank is made a distinction by height difference, is passed through during tapping
The mechanical height of tapping is adjusted to complete the tapping of different blanks.
When the 2nd, tapping, first go out the blank on select location top, then go out the blank of the position bottom, when this
Position blank tapping is completed, then goes out the blank of other positions.
Specifically, it is divided into following each step：
S15：Read the position coordinates of upper strata slab；
S16：According to pad thickness and slab thickness, the position coordinates of processing upper strata slab；
S17：Upper strata slab is taken out according to the position coordinates of the upper strata slab after processing；
S18：Cushion block is removed according to the position of cushion block；
S19：Lower floor's slab is taken out according to the position coordinates of lower floor's slab.
Comparison diagram 1a~1d, the multilayer after improvement lay slab (cloth) method in corresponding four kinds of cloth
In material mode, situation corresponding to Fig. 1 a can fill two pieces, and situation can fill four pieces corresponding to Fig. 1 b,
Situation corresponding to Fig. 1 c can fill four pieces, and situation can fill six pieces corresponding to Fig. 1 d.
Since the inventive method use, Thin Specs blank mostly uses the program, so as to drop significantly
The low energy resource consumption of Thin Specs blanks, wherein by taking the distributing mode of two blocks as an example, the energy of script
Unit consumption is in 470m/ tons or so, and after the method using the present invention, energy unit consumption is in 300m/
Ton or so.
Those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to
The bright present invention, and be not used as limitation of the invention, as long as in the spirit of the present invention
Interior, change, modification to embodiment described above will all fall in the range of claims of the present invention.
Claims (4)
1. a kind of multilayer of chamber-type heating furnace lays slab method, it is characterised in that comprises the following steps：
Heating furnace is warming up to steel loading temperature；
Place lower floor's slab；
Record shape, size, thickness and its position coordinates in heating furnace of lower plywood base；
Set shape, size, thickness and its position coordinates in heating furnace of upper strata slab；
According to shape, the size of the upper strata slab, multiple cushion blocks are set in the upper surface of lower floor's slab；
Record pad thickness；
Place upper strata slab；
Heat stove heat.
2. the multilayer of chamber-type heating furnace as claimed in claim 1 lays slab method, it is characterised in that
The step of heating stove heat, includes：
It is warming up to middle transition temperature；
Held for some time；
It is warming up to tapping temperature；
Insulation a period of time；
Cooling 30 minutes；
Tapping.
3. the multilayer of chamber-type heating furnace as claimed in claim 2 lays slab method, it is characterised in that
The tapping step includes：
Read the position coordinates of upper strata slab；
According to pad thickness and slab thickness, the position coordinates of the upper strata slab is handled；
Upper strata slab is taken out according to the position coordinates of the upper strata slab after processing；
Cushion block is removed according to the position of cushion block；
Lower floor's slab is taken out according to the position coordinates of lower floor's slab.
4. the multilayer of chamber-type heating furnace as claimed in claim 1 lays slab method, it is characterised in that
The length and width of the cushion block are a height of：200mm×200mm×200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402879.1A CN107475507A (en) | 2016-06-08 | 2016-06-08 | The multilayer of chamber-type heating furnace lays slab method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402879.1A CN107475507A (en) | 2016-06-08 | 2016-06-08 | The multilayer of chamber-type heating furnace lays slab method |
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| Publication Number | Publication Date |
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| CN107475507A true CN107475507A (en) | 2017-12-15 |
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| CN201610402879.1A Pending CN107475507A (en) | 2016-06-08 | 2016-06-08 | The multilayer of chamber-type heating furnace lays slab method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747216A (en) * | 2011-04-20 | 2012-10-24 | 宝山钢铁股份有限公司 | Method for controlling steel slab gap in heating furnace |
| CN204058541U (en) * | 2014-08-15 | 2014-12-31 | 宝钢特钢有限公司 | For the cushion block that steel plate in batch-type furnace is stacking |
| CN105177275A (en) * | 2014-06-17 | 2015-12-23 | 张家港浦项不锈钢有限公司 | Heating method of stainless steel plate blanks |
| CN105316468A (en) * | 2014-06-18 | 2016-02-10 | 宝钢特钢有限公司 | Steel charging/discharging control method for chamber-type heating furnace multilayer material distribution |
-
2016
- 2016-06-08 CN CN201610402879.1A patent/CN107475507A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747216A (en) * | 2011-04-20 | 2012-10-24 | 宝山钢铁股份有限公司 | Method for controlling steel slab gap in heating furnace |
| CN105177275A (en) * | 2014-06-17 | 2015-12-23 | 张家港浦项不锈钢有限公司 | Heating method of stainless steel plate blanks |
| CN105316468A (en) * | 2014-06-18 | 2016-02-10 | 宝钢特钢有限公司 | Steel charging/discharging control method for chamber-type heating furnace multilayer material distribution |
| CN204058541U (en) * | 2014-08-15 | 2014-12-31 | 宝钢特钢有限公司 | For the cushion block that steel plate in batch-type furnace is stacking |
Non-Patent Citations (1)
| Title |
|---|
| 于伟光 等: "室式加热炉全自动板坯入炉和出炉技术", 《中国计量协会冶金分会2013年会论文集》 * |
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Application publication date: 20171215 |