CN109504846A - A kind of roll cryogenic treatment apparatus - Google Patents
A kind of roll cryogenic treatment apparatus Download PDFInfo
- Publication number
- CN109504846A CN109504846A CN201811641517.3A CN201811641517A CN109504846A CN 109504846 A CN109504846 A CN 109504846A CN 201811641517 A CN201811641517 A CN 201811641517A CN 109504846 A CN109504846 A CN 109504846A
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- China
- Prior art keywords
- air inlet
- roll
- cooling box
- deep cooling
- treatment apparatus
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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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/04—Hardening by cooling below 0 degrees Celsius
-
- 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
- C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies
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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)
Abstract
本发明公开了一种轧辊深冷处理装置，包括沉淀管和吹风装置，将沉淀在底部的氮气重新吹回至深冷箱内，减少了液氮的使用，同时也促进了深冷箱内气体的运动。通过设置遮挡罩，在防止液氮直喷的同时，也对氮气进行了疏导，使氮气分散的更加均匀。另外，通过驱动装置驱动进风筒转动，通过进风筒将氮气引至轧辊处，进一步使轧辊受冷均匀，提高深冷质量；同时在进风筒外壁设置叶轮，借用进风筒的驱动力使叶轮转动，促进深冷箱内气体的运动，使气体分布更加均匀；而且无需额外动力，降低了成本。
The invention discloses a cryogenic treatment device for a roll, which comprises a precipitation pipe and a blowing device, and blows the nitrogen deposited at the bottom back into the cryogenic box, thereby reducing the use of liquid nitrogen and promoting the circulation of gas in the cryogenic box. sports. By setting a shield, while preventing the direct injection of liquid nitrogen, the nitrogen is also dredged, so that the nitrogen can be dispersed more evenly. In addition, the air inlet duct is driven to rotate by the driving device, and the nitrogen gas is introduced to the roller through the air inlet duct, so that the roller is cooled evenly and the cryogenic quality is improved; at the same time, an impeller is set on the outer wall of the air inlet duct to borrow the driving force of the air inlet duct. The impeller rotates to promote the movement of the gas in the cryogenic box, so that the gas distribution is more uniform; and no additional power is required, which reduces the cost.
Description
Technical field
The present invention relates to roll production fields, are specifically designed a kind of roll cryogenic treatment apparatus.
Background technique
A supplement process of the subzero treatment as common heat treatment, it be place the material in certain low temperature environment,
The process handled according to certain technique.Research and application surface subzero treatment can be effectively improved material wearability,
The mechanical performances such as dimensional stability, intensity and toughness prolong the service life, most final decline so as to improve the quality of product
Low production cost.U.S., the developed countries such as U.S. etc. is dealt into country early in six the seventies just by the technical industry, in recent years
This process of subzero treatment is added in domestic some big small enterprises on the production line of oneself one after another.
And it can be by the cooled of quenched metal material using the liquid nitrogen of ultralow temperature (- 196 DEG C) as cooling medium
Journey continues, and reaches a certain temperature far below room temperature, promote existing retained austenite after normative heat treatment obtain into
One step conversion, so as to improve metal material performance.Commonly currently, generalling use fan or blower in cryogenic treatment apparatus for liquid
Nitrogen is blown into equipment, realizes the cooling to workpiece.The problem is that: (1) fan or blower under low temperature bad working environments exist
High failure rate and service life short problem；(2) nitrogen can not recycle well.
Summary of the invention
For the above defect of the existing technology, it is a primary object of the present invention to overcome the deficiencies in the prior art it
Place, discloses a kind of roll cryogenic treatment apparatus, including the precipitating that deep cooling box on the ground is arranged, underground horizontal setting is arranged in
Pipe, the deep cooling box are connected to the sediment tube, and blowing device is arranged in one end of the sediment tube, and the other end is extended through pipeline
Liquid nitrogen entrance is arranged in the side wall of the top of roll in the deep cooling box, the deep cooling box.
Further, the blowing device includes impeller and motor, wheel rotation described in the motor driven.
It further, further include driving device and air inlet cylinder, the air inlet cylinder is sleeved on outside roll, and the driving device is set
It sets on the deep cooling box, drives the air inlet cylinder rotation.
Further, the driving device include be arranged in ring-shaped guide rail at the top of the deep cooling box, setting it is described into
On air duct with the matched sliding block of the ring-shaped guide rail, the transmission gear and the driving transmission gear that are arranged on the air inlet cylinder
The actuator of rotation drives the transmission gear rotation to rotate the air inlet cylinder using the actuator.
Further, several raised air inlets are arranged in array on the air inlet cylinder side wall.
Further, the lower part setting of the air inlet cylinder is for making the impeller of nitrogen movement outside the air inlet cylinder.
Further, the deep cooling box bottom is filter plate, and the deep cooling box passes through funnel-form connection pool and the sediment tube
Side wall connection.
Further, further include hood for protecting rider for preventing liquid nitrogen direct-injection, several filter hole are set on the hood for protecting rider.
Further, the inlet side of the blowing device between pipeline and the hood for protecting rider and the deep cooling box by connecting
It is logical.
Further, disperser is set above roll, and the disperser is in cone.
It is that the present invention obtains the utility model has the advantages that
Compared with prior art, cryogenic treatment apparatus provided by the invention, including sediment tube and blowing device, will be deposited in
The nitrogen of bottom is blown back to deep cooling box again, reduces the use of liquid nitrogen, while also promoting the movement of gas in deep cooling box.
Also nitrogen is dredged while preventing liquid nitrogen direct-injection by the way that hood for protecting rider is arranged, makes the more uniform of nitrogen dispersion.
In addition, driving air inlet cylinder rotation by driving device, nitrogen is led at roll by air inlet cylinder, roll is further made to be cooled
It is even, improve deep cooling quality；Impeller is set in air inlet drum outer wall simultaneously, the driving force for borrowing air inlet cylinder makes wheel rotation, promotes deep
The movement of gas in ice chest keeps gas distribution more uniform；And it is not necessarily to extra power, it reduces costs.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of roll cryogenic treatment apparatus of the invention；
Fig. 2 is the structural schematic diagram of driving device；
Fig. 3 is the top view for entering the wind cylinder；
Fig. 4 is the structural schematic diagram of blowing device；
Appended drawing reference is as follows:
1, deep cooling box, 2, sediment tube, 3, blowing device, 4, driving device, 5, air inlet cylinder, 6, impeller, 7, connection pool, 8, screening
Block cover, 9, disperser, 10, roll, 31, impeller, 32, motor, 41, ring-shaped guide rail, 42, sliding block, 43, transmission gear, 44, actuating
Device, 51, air inlet.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
The present invention is described in further detail.It should be appreciated that described herein, specific examples are only used to explain the present invention, and does not have to
It is of the invention in limiting.
10 cryogenic treatment apparatus of a kind of roll of the invention, as shown in Figs 1-4, including deep cooling box 1 on the ground is arranged, sets
Deep cooling box 1 and ground level are facilitated roll 10 to be carried in deep cooling box 1 by the sediment tube 2 set in underground horizontal setting.Deep cooling
Case 1 is connected to sediment tube 2, and cold air is sunken to 1 bottom of deep cooling box, and bottom temp is too low compared to upper temp, not can guarantee roll
10 are cooled uniformly, used setting sediment tube 2, so that nitrogen will not be gathered in 10 lower end of roll.In addition, in one end of sediment tube 2
Blowing device 3 is set, and the other end is extended to the top of the roll 10 inside deep cooling box 1 by pipeline, nitrogen is recycled to deep cooling
In case 1, continue to recycle, and then energy saving；Meanwhile from top, entrance can be such that nitrogen sufficiently connects with roll 10 to nitrogen
Touching.Liquid nitrogen entrance is set on deep cooling box 1, is connect with liquid nitrogen container, liquid nitrogen spray is entered in deep cooling box 1, roll 10 is added
Work processing.
It in one embodiment, further include driving device 4 and air inlet cylinder 5, air inlet cylinder 5 is sleeved on outside roll 10, driving device 4
It is arranged on deep cooling box 1, driving air inlet cylinder 5 rotates the nitrogen made enter the wind outside cylinder 5 and is sucked into air inlet cylinder 5 by air inlet cylinder 5.Air inlet
Nitrogen in cylinder 5 is more steady relative to the nitrogen outside air inlet cylinder 5, and roll 10 is further made to be cooled uniformly.Specifically, driving
Device 4 includes the ring-shaped guide rail 41 that 1 top of deep cooling box is arranged in, is arranged on air inlet cylinder 5 and the matched sliding block of ring-shaped guide rail 41
42, the actuator 44 that transmission gear 43 and the driving transmission gear 43 being arranged on air inlet cylinder 5 rotate, wherein transmission gear 43
The upper end of air inlet cylinder 5, and prominent and deep cooling box 1 are set.Actuator 44 includes motor and gear, and motor is arranged by bracket
It on deep cooling box 1, is engaged by gear with transmission gear 43, is rotated by motor driven transmission gear 43, make 5 turns of cylinder of air inlet
It is dynamic.All activated apparatus are arranged at outside deep cooling box 1, activated apparatus is further protected, improve its service life, reduces and adds
Work cost.
In one embodiment, the air inlet 51 that several protrusions are arranged in array on 5 side wall of cylinder is entered the wind, as shown in figure 3,
Specifically, air inlet 51, in bowl-shape, by entering the wind the rotation of cylinder 5, air inlet 51 buckles into nitrogen in air inlet cylinder 5.It will be appreciated that
, as long as the slanting baffle of protrusion is arranged on the side wall of air inlet cylinder 5, by entering the wind the rotation of cylinder 5, introduce nitrogen gas into air inlet cylinder 5
It is interior.
In a preferred embodiment, impeller 6 is arranged in the lower part for entering the wind cylinder 5, and the impeller 6 is for dispelling outside air inlet cylinder 5
Nitrogen makes its movement.It is colder to accumulate in lower section because if outer, stationary is motionless, make non-uniform temperature up and down.Therefore,
Impeller 6 is set on air inlet cylinder 5, impeller 6 can be driven without additional power and rotate, promote the movement of nitrogen.
In one embodiment, as shown in figure 4, blowing device 3 includes impeller 31 and motor 32, impeller is driven by motor 32
31 rotations, make it generate wind, are guided by sediment tube 2, and the nitrogen that deep cooling box 1 flows into sediment tube 2 is drained into again by pipeline
The top of deep cooling box 1.In general, 3 air inlet of blowing device passes through atmosphere air inlet, but also will increase the consumption of liquid nitrogen in this way, therefore,
The inlet side of impeller 31 by pipeline and deep cooling box 1 close to liquid nitrogen inlet, further prevent colder nitrogen accumulation in bottom
While, driving nitrogen comes back to 1 top of deep cooling box and cools down to roll 10.Meanwhile, it is capable to expect, motor 32 drives
Impeller 31 rotates, and impeller 31 rotates, and from inlet side air-breathing, air side jet, the nitrogen for flowing to inlet side is immediately inhaled by impeller 31
It walks, and then protects the damage for reducing nitrogen to motor 32.
In one embodiment, 1 bottom of deep cooling box be filter plate, deep cooling box 1 nitrogen is gathered by funnel-form connection pool 7 send to
In sediment tube 2.
In one embodiment, liquid nitrogen is sprayed from liquid nitrogen entrance, be might have part liquid nitrogen and is injected directly on roll 10.Meeting
It causes 10 Local cooling of roll excessive, influences the quality of roll 10.Therefore, further include hood for protecting rider 8 for preventing liquid nitrogen direct-injection,
Several filter hole are set on hood for protecting rider 8.Firstly, hood for protecting rider 8 prevents liquid nitrogen direct-injection, the protective effect to roll 10 is played, separately
Outside, by be arranged filter hole, make liquid nitrogen gasify between deep cooling box 1 and hood for protecting rider 8 stabilization after, uniformly entered from filter hole
In hood for protecting rider 8, filter hole plays elicitation effect.
In a preferred embodiment, the inlet side of blowing device 3 between pipeline and hood for protecting rider 8 and deep cooling box 1 by being connected to.
In one embodiment, the nitrogen of 10 top of roll carries out blow-through to roll 10 in order to prevent, therefore, on roll 10
Side's setting disperser 9, disperser 9 are in cone, and nitrogen is guided from centre to its surrounding.Distinguish nitrogen more uniform,
Further ensure cooling effect.
It in one embodiment, further include relief valve (not shown), to guarantee the air pressure in deep cooling box 1 in safe range,
Prevent unexpected generation.
In the use of the present invention, roll 10 is placed in air inlet cylinder 5, starting device, liquid nitrogen is entered by liquid nitrogen entrance
In deep cooling box 1, blocking and current stabilization by hood for protecting rider 8 enter stable nitrogen in hood for protecting rider 8, are rotated by air inlet cylinder 5,
By in the nitrogen sucking air inlet cylinder 5 in hood for protecting rider 8, nitrogen is cooled down, by multistage current stabilization, roll 10 is enable to be cooled
It is even.The nitrogen for accumulating in air inlet 5 bottom of cylinder simultaneously is flowed into sedimentation basin 2 by connection pool 7, by blowing device 3 by hood for protecting rider 8
The top of deep cooling box 1 is squeezed into outer nitrogen sucking again after mixing with the nitrogen that air inlet cylinder 5 gathers, cooled down again to roll 10,
And by the nitrogen poured, promote the gas motion in deep cooling box 1.Meanwhile while entering the wind the rotation of cylinder 5, also promote deep
Nitrogen movement in ice chest 1, avoids the bottom wall for accumulating in deep cooling box 1, causes roll 10 to be cooled unevenness, influence deep cooling quality.
The foregoing is merely a prefered embodiment of the invention, practical range not for the purpose of limiting the invention；If not departing from this
The spirit and scope of invention, modify or equivalently replace the present invention, and should all cover the protection in the claims in the present invention
In range.
Claims (10)
1. a kind of roll cryogenic treatment apparatus, which is characterized in that set including deep cooling box on the ground is arranged, is arranged in underground horizontal
The sediment tube set, the deep cooling box are connected to the sediment tube, and blowing device is arranged in one end of the sediment tube, and the other end passes through
Pipeline extends to the top of the roll in the deep cooling box, and liquid nitrogen entrance is arranged in the side wall of the deep cooling box.
2. a kind of roll cryogenic treatment apparatus according to claim 1, which is characterized in that the blowing device includes impeller
And motor, wheel rotation described in the motor driven.
3. a kind of roll cryogenic treatment apparatus according to claim 1, which is characterized in that further include driving device and air inlet
Cylinder, the air inlet cylinder are sleeved on outside roll, and the driving device is arranged on the deep cooling box, drive the air inlet cylinder rotation.
4. a kind of roll cryogenic treatment apparatus according to claim 3, which is characterized in that the driving device includes setting
Ring-shaped guide rail, setting at the top of the deep cooling box exist on the air inlet cylinder with the matched sliding block of the ring-shaped guide rail, setting
The actuator of transmission gear and driving the transmission gear rotation on the air inlet cylinder, utilizes the actuator to drive the biography
Moving gear rotation rotates the air inlet cylinder.
5. a kind of roll cryogenic treatment apparatus according to claim 3, which is characterized in that array on the air inlet cylinder side wall
The air inlet of several protrusions is set.
6. a kind of roll cryogenic treatment apparatus according to claim 3, which is characterized in that the lower part setting of the air inlet cylinder
For making the impeller of nitrogen movement outside the air inlet cylinder.
7. a kind of roll cryogenic treatment apparatus according to claim 1, which is characterized in that the deep cooling box bottom is filter
Plate, the deep cooling box are connected to by funnel-form connection pool with the sediment tube side wall.
8. a kind of roll cryogenic treatment apparatus according to claim 1, which is characterized in that further include for preventing liquid nitrogen straight
Several filter hole are arranged on the hood for protecting rider in the hood for protecting rider of spray.
9. a kind of roll cryogenic treatment apparatus according to claim 8, which is characterized in that the inlet side of the blowing device
By being connected between pipeline and the hood for protecting rider and the deep cooling box.
10. a kind of roll cryogenic treatment apparatus according to claim 1, which is characterized in that disperser is set above roll,
The disperser is in cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811641517.3A CN109504846A (en) | 2018-12-29 | 2018-12-29 | A kind of roll cryogenic treatment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811641517.3A CN109504846A (en) | 2018-12-29 | 2018-12-29 | A kind of roll cryogenic treatment apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN109504846A true CN109504846A (en) | 2019-03-22 |
Family
ID=65757110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811641517.3A Pending CN109504846A (en) | 2018-12-29 | 2018-12-29 | A kind of roll cryogenic treatment apparatus |
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| Country | Link |
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| CN (1) | CN109504846A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763076A (en) * | 2019-03-26 | 2019-05-17 | 江苏润孚机械轧辊制造有限公司 | A kind of manufacturing method for the forged steel working roll rolling very thin material |
| CN109762968A (en) * | 2019-03-26 | 2019-05-17 | 江苏润孚机械轧辊制造有限公司 | A kind of method of common forged steel roller stock production silicon steel cold roll |
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| KR20020017580A (en) * | 2000-08-31 | 2002-03-07 | 신현준 | Cryogenic treatment method for roll and apparatus of thereof |
| CN201261795Y (en) * | 2008-09-18 | 2009-06-24 | 浙江工业大学 | Well type cryogenic treatment device |
| CN104328264A (en) * | 2014-10-29 | 2015-02-04 | 天津市热处理研究所有限公司 | Cold treatment box of roller |
| CN204874607U (en) * | 2015-08-31 | 2015-12-16 | 河南千王钎具有限责任公司 | Normalizing fan cooler that uses of drilling tool |
| CN208202374U (en) * | 2018-04-17 | 2018-12-07 | 青岛亿利杰钢结构有限公司 | A kind of rotatable air inlet wind tower |
| CN209636281U (en) * | 2018-12-29 | 2019-11-15 | 江苏润孚机械轧辊制造有限公司 | A kind of roll cryogenic treatment apparatus |
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2018
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020017580A (en) * | 2000-08-31 | 2002-03-07 | 신현준 | Cryogenic treatment method for roll and apparatus of thereof |
| CN201261795Y (en) * | 2008-09-18 | 2009-06-24 | 浙江工业大学 | Well type cryogenic treatment device |
| CN104328264A (en) * | 2014-10-29 | 2015-02-04 | 天津市热处理研究所有限公司 | Cold treatment box of roller |
| CN204874607U (en) * | 2015-08-31 | 2015-12-16 | 河南千王钎具有限责任公司 | Normalizing fan cooler that uses of drilling tool |
| CN208202374U (en) * | 2018-04-17 | 2018-12-07 | 青岛亿利杰钢结构有限公司 | A kind of rotatable air inlet wind tower |
| CN209636281U (en) * | 2018-12-29 | 2019-11-15 | 江苏润孚机械轧辊制造有限公司 | A kind of roll cryogenic treatment apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763076A (en) * | 2019-03-26 | 2019-05-17 | 江苏润孚机械轧辊制造有限公司 | A kind of manufacturing method for the forged steel working roll rolling very thin material |
| CN109762968A (en) * | 2019-03-26 | 2019-05-17 | 江苏润孚机械轧辊制造有限公司 | A kind of method of common forged steel roller stock production silicon steel cold roll |
| WO2020192617A1 (en) * | 2019-03-26 | 2020-10-01 | 江苏润孚机械轧辊制造有限公司 | Method for producing silicon steel cold-rolling work rolls from ordinary forged steel roll blanks |
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Application publication date: 20190322 |