CN104028718A - Cooling method and cooling device for cast pieces of belt-spinning furnace - Google Patents
Cooling method and cooling device for cast pieces of belt-spinning furnace Download PDFInfo
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- CN104028718A CN104028718A CN201410261157.XA CN201410261157A CN104028718A CN 104028718 A CN104028718 A CN 104028718A CN 201410261157 A CN201410261157 A CN 201410261157A CN 104028718 A CN104028718 A CN 104028718A
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Abstract
The invention discloses a cooling method and a cooling device for cast pieces of a belt-spinning furnace. The cooling method includes the steps of 1), outputting the cast pieces produced by the belt-spinning furnace to a cold dish of a cast piece cooling chamber so as to enable the cast piece to rotate together with the cold dish; 2), discharging high-temperature gas generated in the cast piece cooling chamber in the step 1) to a cooling system from two sides of the cold dish, wherein the cooling system comprises a water cooler and a freezing dryer; 3), blowing low-temperature gas generated in the cooling system in the step 2) to the position above the cast piece from the upper side of the cold dish, and stirring to crush the cast piece. The cooling method is high in cooling effect, overcrushing of the cast piece is alleviated, and consistency of products is improved.
Description
Technical field
The present invention relates to the production field of Nd Fe B alloys, particularly a kind of cooling means of spun furnace slab and cooling device.
Background technology
At present, in the production of Nd Fe B alloys, the slab that spun furnace is produced need to be carried out cooling processing, and usually, cooling device is made up of puddle support, fixed aqueous cold plate, auxiliary air-cooled three parts.Its operation principle be high temperature slab under the promotion of puddle support, constantly carry out heat exchange with aqueous cold plate, and under the booster action of recyclegas slow reduction slab temperature, the tapping temperature that conventionally high temperature slab will be down to 30 DEG C of left and right.
But, in the above-mentioned type of cooling, when slab is placed on fixing aqueous cold plate, auxiliary air-cooled outlet temperature is higher, export far away apart from slab, can not large area covering high-temperature slab, cooling-down effect is undesirable, and puddle support rotational frequency is low, and need 90～120 minutes cool time.If increase puddle support rotational frequency, will cause excessive fragmentation to slab, thereby directly affect product quality, also increase the consumption to equipment simultaneously.
The information that is disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply that in any form this information structure has been the known prior art of persons skilled in the art.
Summary of the invention
The object of the present invention is to provide a kind of cooling means and cooling device of spun furnace slab, can be shortened to 30 minutes cool time, system cools efficiency is high.In addition, by changing traditional agitating mode, change plug-in type extruding into, alleviate the overcrushing to slab, improve the uniformity of product.
For achieving the above object, the invention provides a kind of cooling means of spun furnace slab, comprise the steps: step 1, the slab that spun furnace is produced exports in the cold dish of slab cooling chamber, and slab is rotated together with cold dish; Step 2, is expelled to cooling system by the high-temperature gas producing in the slab cooling chamber in step 1 from the both sides of cold dish, and cooling system comprises water cooler and cooling driers; And step 3, the cryogenic gas that the cooling system in step 2 is produced is evenly blown into the top of slab from the top of cold dish, slab is carried out to fragmentation simultaneously and stir.
Preferably, in step 3, cryogenic gas is blown into the top of slab by liftable blower.
Preferably, the termination of blower is evenly provided with some isocons, and the end of each isocon is provided with triangular spade slab is carried out to fragmentation stirring.
Preferably, to slab carry out cooling before, cooling driers is vacuumized.
The present invention also provides a kind of cooling device of spun furnace slab, comprising: slab cooling chamber, in it, be provided with rotatable cold dish, and the both sides of slab cooling chamber are provided with high-temperature gas outlet near cold dish marginal position; Cooling system, it comprises water cooler and the cooling driers of series connection, and cooling driers has cryogenic gas outlet, and water cooler has air inlet, and air inlet is connected with high-temperature gas outlet; And liftable blower, it is located at close cold dish top in slab cooling chamber, and the end of blower is provided with stirring parts, and stirring parts is used for that slab is carried out to fragmentation and stirs.
Preferably, the termination of blower is evenly provided with some isocons, and the end of each isocon is equipped with stirring parts.
Preferably, stirring parts is triangular spade.
Preferably, between water cooler and cooling driers, access cooling blower, the fan blade housing of cooling blower is provided with cooling water pipe.
Preferably, the two ends of cooling driers are all provided with flapper valve.
Preferably, the air inlet place of water cooler is provided with screen pack.
Compared with prior art, the present invention has following beneficial effect: by design water cooler and cooling driers, high-temperature furnace gas is carried out to two-stage cooling, cooling-down effect is remarkable, then by lift blower, cryogenic gas is delivered to goods (slab) inside, and increase heat exchange area with the rotation of cold dish, can shorten cool time, improve cooling effect; Utilize the triangular spade of blower end to carry out appropriateness extruding to goods simultaneously, can improve quality of item; Carry out by cooling and broken stirring simultaneously, effectively improve operation rate, reduce and consume.
Brief description of the drawings
Fig. 1 is the cooling system schematic diagram according to the cooling device of spun furnace slab of the present invention;
Fig. 2 is according to the schematic diagram of the slab cooling chamber of the cooling device of spun furnace slab of the present invention.
Main description of reference numerals:
1-water cooler, 2-cooling blower, 3-cooling driers, 4-slab cooling chamber, 5-blower.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of detailed description of the invention.
Unless separately there is other clearly to represent, otherwise in whole description and claims, term " comprises " or its conversion was stated being understood to include as " comprising " or " including " etc. element or part, and do not get rid of other element or other part.
As shown in Figures 1 and 2, first illustrate a kind of cooling device relating in the cooling means of spun furnace slab of the specific embodiment of the invention, this cooling device comprises slab cooling chamber 4 (referring to Fig. 2), cooling system (it comprises water cooler 1 and the cooling driers 3 of series connection) and liftable blower 5, wherein, in slab cooling chamber 4, be provided with rotatable cold dish 41, rotary electric machine (unmarked in figure) is carried in cold dish 41 belows, after electric motor starting, cold dish 41 can be around center rotating, the slab that spun furnace is produced can export cold dish 41 to, the both sides of slab cooling chamber 4 are provided with high-temperature gas outlet 42 near cold dish 41 marginal positions.Cooling driers 3 has cryogenic gas outlet 32, and water cooler 1 has air inlet 11, and air inlet 11 is connected with high-temperature gas outlet 42.It is interior near cold dish 41 tops that liftable blower 5 is located at slab cooling chamber 4, the end of blower 5 is provided with stirring parts, stirring parts is used for that slab is carried out to fragmentation and stirs, as a kind of preferred embodiment, the termination of blower 5 is evenly provided with some isocons 51, the end of each isocon 51 is equipped with stirring parts 52, and the stirring parts that the present embodiment provides is triangular spade, and blower 5 can be realized and being moved up and down by lift cylinder.
In such scheme, between water cooler 1 and cooling driers 3, access cooling blower 2, cooling blower 2 adopts magnetic isolation transmission, and is provided with cooling water pipe 22 on the fan blade housing 21 of cooling blower 2, carries out cooling to cooling blower 2.In addition, the two ends of cooling driers 3 are all provided with flapper valve 31, air inlet 11 places of water cooler 1 are provided with screen pack 13, one in screen pack 13 is selected stainless steel screen pack, glass fibre is high temperature resistant screen pack, the inside of water cooler 1 adopts copper multitube structure, water cooler 1 is connected by water pipe 12 with extraneous water circulation, interior logical cooling water pressure >=0.02Mpa.
In the time starting the cooling blower of cooling system, open flapper valve 31, under the suction of cooling blower 2, the high-temperature gas of slab cooling chamber 4 to be extracted out, gas is lowered the temperature step by step through water cooler 1 and the cooling driers 3 of cooling system, screen pack 13 stops that dust enters simultaneously, high-temperature gas can be down to 50 ± 5 DEG C through water cooler 1, enters after the further cooling of cooling driers 3, and gas outlet temperature can be down to 15 ± 5 DEG C, finally return to slab cooling chamber 4 by blower 5, so circulation is constantly lowered the temperature to slab.
The specific embodiment of the invention also provides a kind of cooling means of spun furnace slab, comprises the steps:
Step 1, the slab that spun furnace is produced exports in the cold dish 41 of slab cooling chamber 4, and slab is rotated together with cold dish 41;
Step 2, is expelled to cooling system by the high-temperature gas of the slab cooling chamber 4 interior generations in step 1 from the both sides of cold dish 41, and cooling system comprises water cooler 1 and cooling driers 3; And
Step 3, the cryogenic gas that the cooling system in step 2 is produced is evenly blown into the top of slab from the top of cold dish 41, slab is carried out to fragmentation simultaneously and stir.
In step 3, cryogenic gas is blown into the top of slab by liftable blower 5, and particularly, the termination of blower 5 is evenly provided with some isocons 51, and the end of each isocon 51 is provided with triangular spade slab is carried out to fragmentation stirring.
Certainly, to slab carry out cooling before, can vacuumize cooling driers, particularly, in spun furnace vacuumizing phase, open the flapper valve 31 of cooling driers 3 both sides, inside to cooling driers 3 vacuumizes, when its internal pressure and furnace pressure keep stable after, the flapper valve 31 of closing cooling driers both sides, the outlet temperature of simultaneously setting cooling driers 3 is 15 ± 5 DEG C.
The aforementioned description to concrete exemplary of the present invention is in order to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Exemplary embodiment is selected and the object described is to explain certain principles of the present invention and practical application thereof, thereby made those skilled in the art can realize and utilize various exemplary of the present invention and various selection and change.Scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (10)
1. a cooling means for spun furnace slab, is characterized in that, comprises the steps:
Step 1, the slab that spun furnace is produced exports in the cold dish of slab cooling chamber, and described slab is rotated together with described cold dish;
Step 2, is expelled to cooling system by the high-temperature gas producing in the slab cooling chamber in step 1 from the both sides of cold dish, and described cooling system comprises water cooler and cooling driers; And
Step 3, the cryogenic gas that the cooling system in step 2 is produced is evenly blown into the top of described slab from the top of described cold dish, described slab is carried out to fragmentation simultaneously and stir.
2. the cooling means of spun furnace slab according to claim 1, is characterized in that, in described step 3, cryogenic gas is blown into the top of described slab by liftable blower.
3. the cooling means of spun furnace slab according to claim 2, is characterized in that, the termination of described blower is evenly provided with some isocons, and the end of each isocon is provided with triangular spade described slab is carried out to fragmentation stirring.
4. the cooling means of spun furnace slab according to claim 1, is characterized in that, to described slab carry out cooling before, described cooling driers is vacuumized.
5. a cooling device for spun furnace slab, is characterized in that, comprising:
Slab cooling chamber, is provided with rotatable cold dish in it, the both sides of described slab cooling chamber are provided with high-temperature gas outlet near described cold dish marginal position;
Cooling system, it comprises water cooler and the cooling driers of series connection, and described cooling driers has cryogenic gas outlet, and described water cooler has air inlet, and described air inlet is connected with described high-temperature gas outlet; And
Liftable blower, it is located at close described cold dish top in described slab cooling chamber, and the end of described blower is provided with stirring parts, and described stirring parts is used for that described slab is carried out to fragmentation and stirs.
6. the cooling device of spun furnace slab according to claim 5, is characterized in that, the termination of described blower is evenly provided with some isocons, and the end of each isocon is equipped with described stirring parts.
7. the cooling device of spun furnace slab according to claim 6, is characterized in that, described stirring parts is triangular spade.
8. the cooling device of spun furnace slab according to claim 1, is characterized in that, between described water cooler and described cooling driers, accesses cooling blower, and the fan blade housing of described cooling blower is provided with cooling water pipe.
9. the cooling device of spun furnace slab according to claim 8, is characterized in that, the two ends of described cooling driers are all provided with flapper valve.
10. the cooling device of spun furnace slab according to claim 8, is characterized in that, the air inlet place of described water cooler is provided with screen pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261157.XA CN104028718A (en) | 2014-06-12 | 2014-06-12 | Cooling method and cooling device for cast pieces of belt-spinning furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261157.XA CN104028718A (en) | 2014-06-12 | 2014-06-12 | Cooling method and cooling device for cast pieces of belt-spinning furnace |
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| CN104028718A true CN104028718A (en) | 2014-09-10 |
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| CN201410261157.XA Pending CN104028718A (en) | 2014-06-12 | 2014-06-12 | Cooling method and cooling device for cast pieces of belt-spinning furnace |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002283018A (en) * | 2001-03-23 | 2002-10-02 | Nippon Steel Corp | Method for cooling cast slab in multi-size continuous casting facility used for both of bloom and billet and its cooling device |
| CN1576768A (en) * | 2003-06-30 | 2005-02-09 | 广濑洋一 | Cooling device and thin strap continuous casting apparatus and cooling method for casting thin strap |
| CN201431909Y (en) * | 2009-06-23 | 2010-03-31 | 安徽万磁电子有限公司 | Magnetic material grinding system with cold drying treatment |
| CN101700878A (en) * | 2009-09-09 | 2010-05-05 | 张文波 | Nitrogen purification method |
| CN201569285U (en) * | 2009-12-14 | 2010-09-01 | 沈阳广泰真空设备有限公司 | Smelting sheet casting furnace |
| CN202139054U (en) * | 2011-07-25 | 2012-02-08 | 山东华韵新材料有限公司 | Nitrogen purifying system |
| CN203389508U (en) * | 2013-07-22 | 2014-01-15 | 新兴铸管（浙江）铜业有限公司 | Temperature control device for cooling water valve of freezing dryer |
-
2014
- 2014-06-12 CN CN201410261157.XA patent/CN104028718A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002283018A (en) * | 2001-03-23 | 2002-10-02 | Nippon Steel Corp | Method for cooling cast slab in multi-size continuous casting facility used for both of bloom and billet and its cooling device |
| CN1576768A (en) * | 2003-06-30 | 2005-02-09 | 广濑洋一 | Cooling device and thin strap continuous casting apparatus and cooling method for casting thin strap |
| CN201431909Y (en) * | 2009-06-23 | 2010-03-31 | 安徽万磁电子有限公司 | Magnetic material grinding system with cold drying treatment |
| CN101700878A (en) * | 2009-09-09 | 2010-05-05 | 张文波 | Nitrogen purification method |
| CN201569285U (en) * | 2009-12-14 | 2010-09-01 | 沈阳广泰真空设备有限公司 | Smelting sheet casting furnace |
| CN202139054U (en) * | 2011-07-25 | 2012-02-08 | 山东华韵新材料有限公司 | Nitrogen purifying system |
| CN203389508U (en) * | 2013-07-22 | 2014-01-15 | 新兴铸管（浙江）铜业有限公司 | Temperature control device for cooling water valve of freezing dryer |
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Application publication date: 20140910 |