CN102049430A - Oil suction device on strip surface of cold-rolling mill - Google Patents
Oil suction device on strip surface of cold-rolling mill Download PDFInfo
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- CN102049430A CN102049430A CN 201010546055 CN201010546055A CN102049430A CN 102049430 A CN102049430 A CN 102049430A CN 201010546055 CN201010546055 CN 201010546055 CN 201010546055 A CN201010546055 A CN 201010546055A CN 102049430 A CN102049430 A CN 102049430A
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- negative pressure
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Abstract
The invention discloses an oil suction device on the strip surface of a cold-rolling mill, which comprises a negative pressure generating pipe and an oil drain pipe, wherein the negative pressure generating pipe is provided with an air inlet and an air outlet which are mutually communicated; the through-flow area of the air outlet is larger than the through-flow area of the air inlet; and one end of the oil drain pipe is provided with an oil suction port, and the other end of the oil drain pipe is connected with the negative pressure generating pipe and connected to the position near the air outlet of the negative pressure generating pipe. In the invention, because the through-flow area of the air outlet is larger than the through-flow area of the air inlet on the negative pressure generating pipe, when the air which enters through the air inlet moves to the position of the air outlet, a negative pressure region in a certain range is formed in the position of the air outlet because the through-flow area is increased, and a certain suction force is exerted to the fluid in the oil drain pipe because of the suction force action of the negative pressure. When in use, the oil suction port of the oil drain pipe faces to a strip, the oil stain on the strip surface can be sucked by the suction force generated by the negative pressure in the oil drain pipe and drained out of the oil drain pipe, thereby achieving the purpose of automatically draining oil.
Description
Technical field
The present invention relates to the Oil sucking device technical field, more particularly, relate to a kind of cold-rolling mill strip surface Oil sucking device.
Background technology
In cold rolling unit in order to reduce roll torque; reduce the roller surface temperature; usually can adopt different technological lubrication liquid to different materials; this is the needs of cold-rolling process; but batch and the raffinate of strip surface must be removed totally at finished product, otherwise, sliding band easily produced when take-up; the residue of annealing back technological lubrication liquid will pollute strip surface, influence product quality.Therefore, the quality of deoiling effect directly has influence on milling train whether ordinary production and product quality.For this reason before the machine of milling train, behind the machine (reversable mill) degreasing unit must be set.
Present degreasing unit adopts the sealing of pair roller type or rubber press strip to form vacuum chamber usually, by vacuum chamber as power source, to the strip surface oil removing.Adopt the rubber press strip short sealing life, a common coiled strip will be changed later, influence production efficiency; Though and the employing pair roller type has improved the life-span of device, pair roller type compresses band strip surface is produced impression, influences product quality.
Summary of the invention
In view of this, the invention provides a kind of cold-rolling mill strip surface Oil sucking device,, the strip material is carried out oil removing with under the prerequisite that does not influence strip material surface quality.
For achieving the above object, the invention provides following technical scheme:
A kind of cold-rolling mill strip surface Oil sucking device, this cold-rolling mill strip surface Oil sucking device comprises that negative pressure produces pipe and oil exit pipe, described negative pressure produces on the pipe has air inlet and the exhaust outlet that is connected, and the flow area of described exhaust outlet is greater than the flow area of described air inlet, one end of described oil exit pipe is an inlet port, the other end produces pipe with described negative pressure and links to each other, and is connected the position that produces the exhaust outlet of pipe near described negative pressure.
Preferably, in above-mentioned cold-rolling mill strip surface Oil sucking device, described oil exit pipe has oil-discharging cavity, and this oil-discharging cavity is conical cavity, and the end that this conical cavity area of section is bigger is an inlet port, and the other end is an oil drain out.
Preferably, in above-mentioned cold-rolling mill strip surface Oil sucking device, described negative pressure produces pipe and has inlet chamber and the discharge chamber that is connected, the air inlet that described negative pressure produces on the pipe links to each other with described inlet chamber, one end of described discharge chamber is an exhaust outlet, and the flow area of described inlet chamber and discharge chamber joint is the minimum place of two chamber flow areas.
Preferably, in above-mentioned cold-rolling mill strip surface Oil sucking device, an end of the oil drain out of described oil exit pipe stretches into the discharge chamber that described negative pressure produces pipe, and leaves the gap between described oil exit pipe and the described discharge chamber.
Preferably, in above-mentioned cold-rolling mill strip surface Oil sucking device, described discharge chamber is a conical cavity, and this discharge chamber is bigger away from the flow area of an end of described oil exit pipe.
Preferably, in above-mentioned cold-rolling mill strip surface Oil sucking device, described oil exit pipe and described negative pressure produce pipe and are equipped with and fixedly prolong the limit, and by the limit of fixedly prolonging that screw passes the two the two are fixed.
Preferably, in above-mentioned cold-rolling mill strip surface Oil sucking device, be provided with sealing device between the limit at described oil exit pipe and fixedly prolonging of pipe of described negative pressure generation.
Preferably, in above-mentioned cold-rolling mill strip surface Oil sucking device, described air inlet is opened in described negative pressure and produces on the sidewall of pipe.
From above-mentioned technical scheme as can be seen, cold-rolling mill strip surface Oil sucking device provided by the invention produces pipe by the negative pressure that is provided for producing negative pressure and is used for the oil exit pipe of oil suction and oil extraction, can realize the purpose that the greasy dirt of strip surface is siphoned away by negative pressure.Because negative pressure produces the flow area of the flow area of the exhaust outlet on the pipe greater than described air inlet, so at the gas that enters by air inlet when moving to exhaust ports, because the change of flow area is big, can be at the negative pressure region in exhaust ports forms certain limit, because the attraction force acts of negative pressure can be given the certain suction of fluid in the oil exit pipe.During use, the inlet port that can make oil exit pipe is facing to band, and the suction that is produced by negative pressure in the oil exit pipe can siphon away the greasy dirt of strip surface, and discharges from oil exit pipe, thereby reaches the purpose of automatic oil draining.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the cold-rolling mill strip surface Oil sucking device that Fig. 1 provides for the embodiment of the invention;
The negative pressure that Fig. 2 provides for the embodiment of the invention produces the structural representation of pipe;
The structural representation of the oil exit pipe that Fig. 3 provides for the embodiment of the invention.
The specific embodiment
The invention provides a kind of cold-rolling mill strip surface Oil sucking device,, the strip material is carried out oil removing with under the prerequisite that does not influence strip material surface quality.
Inventive concept of the present invention is a principle of utilizing negative pressure suction force, design and installation a negative pressure suction device, when air communication is crossed negative pressure device, can produce the certain negative pressure zone in its outlet, the strip lower surface is when passing through its negative pressure region, utilize attraction that negative pressure produces that the greasy dirt of its strip surface is siphoned away, thereby reach the purpose that reduces the strip surface greasy dirt.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
See also Fig. 1-Fig. 3, the structural representation of the cold-rolling mill strip surface Oil sucking device that Fig. 1 provides for the embodiment of the invention; The negative pressure that Fig. 2 provides for the embodiment of the invention produces the structural representation of pipe; The structural representation of the oil exit pipe that Fig. 3 provides for the embodiment of the invention.
Wherein, 1 for negative pressure produces pipe, and 2 is oil exit pipe, and 3 is band, and 11 is inlet chamber, and 12 is discharge chamber, and 13 is air inlet, and 14 is exhaust outlet, and 15 for fixedly to prolong the limit, and 21 is oil-discharging cavity, and 22 is inlet port, and 23 is oil drain out, and 24 for fixedly prolonging the limit.
Cold-rolling mill strip surface Oil sucking device provided by the invention, comprise that negative pressure produces pipe 1 and oil exit pipe 2, wherein, negative pressure produces on the pipe 1 has air inlet 13 and the exhaust outlet 14 that is connected, and the flow area of described exhaust outlet 14 is greater than the flow area of described air inlet 13.Negative pressure produces pipe 1 and is used to inject air, and air moves to exhaust outlet 14 by air inlet 13, because the change of flow area is big, can form the negative pressure region in the certain limit near exhaust outlet 14.
One end of oil exit pipe 2 is an inlet port 22, and the other end produces pipe 1 with described negative pressure and links to each other, and is connected the position that produces the exhaust outlet 14 of pipe 1 near described negative pressure.Owing to form the negative pressure region in the certain limit near the exhaust outlet 14, because the attraction force acts of negative pressure can be given the certain suction of fluid in the oil exit pipe 2.
In sum, cold-rolling mill strip surface Oil sucking device provided by the invention produces pipe 1 by the negative pressure that is provided for producing negative pressure and is used for the oil exit pipe 2 of oil suction and oil extraction, can realize the purpose that the greasy dirt on band 3 surfaces is siphoned away by negative pressure.Because negative pressure produces the flow area of the flow area of the exhaust outlet 14 on the pipe 1 greater than described air inlet 13, so at the gas that enters by air inlet 13, when moving to exhaust outlet 14 places, because the change of flow area is big, can be at the negative pressure region in exhaust outlet 14 places form certain limit, because the attraction force acts of negative pressure can be given the certain suction of fluid in the oil exit pipe 2.During use, the inlet port 22 that can make oil exit pipe 2 is facing to band 3, and the suction that is produced by negative pressure in the oil exit pipe 2 can siphon away the greasy dirt on band 3 surfaces, and discharges from oil exit pipe 2, thereby reaches the purpose of automatic oil draining.
Negative pressure produces pipe 1 and has inlet chamber 11 and the discharge chamber 12 that is connected, and the air inlet 13 that described negative pressure produces on the pipe 1 links to each other with described inlet chamber 11, and an end of described discharge chamber 12 is an exhaust outlet 14.By air inlet 13 air inlets, air-flow at first enters inlet chamber 11 by air inlet 13, enters discharge chamber 12 by inlet chamber 11 then, and the exhaust outlet from the discharge chamber 12 14 is discharged at last.
One end of the oil drain out 23 of oil exit pipe 2 stretches into the discharge chamber 12 that described negative pressure produces pipe 1, and leaves the gap between described oil exit pipe 2 and the described discharge chamber 12.Compressed air enters from the air inlet 13 that negative pressure produces pipe 1, by the gap between oil exit pipe 2 and the discharge chamber 12, high speed discharges from exhaust outlet 14 then, formed the negative pressure region of certain limit this moment at oil drain out 23 places, because the effect of negative pressure suction force, when band during at a high speed by this Oil sucking device, band 3 lower surfaces with greasy dirt promptly siphoned away by the negative pressure suction force at inlet port 22 places, and discharge, thereby reach the purpose of band lower surface oil suction with compressed air.
The discharge chamber 12 that negative pressure produces pipe 1 is a conical cavity, and this discharge chamber 12 is bigger away from the flow area of an end of described oil exit pipe 2, and air inlet 13 is opened in described negative pressure and produces on the sidewall of pipe 1.Be that the end that discharge chamber 12 and inlet chamber 11 join increases gradually to the internal diameter of an end of exhaust outlet 14, the negative pressure that can make negative pressure region produce is bigger, thereby the suction at inlet port 22 places of oil exit pipe 2 is bigger, greasy dirt suction to band 3 lower surfaces is bigger, therefore, can make the greasy dirt of band 3 lower surfaces all be sucked away.
In order to prevent gas leakage, produce fixedly prolonging between the limit (24,15) of pipe 1 in described oil exit pipe 2 and described negative pressure and be provided with sealing device, to guarantee that producing the high pressure gas that the air inlet 13 of pipe 1 enters by negative pressure can only discharge by the exhaust outlet on the discharge chamber 12 14.Therefore, can improve the pressure of high pressure gas, increase the throughput of unit interval air-flow, make it possible to produce higher negative pressure, form enough suction greasy dirt with inlet port 22 places at oil exit pipe.
Therefore the present invention does not have influence to band 3 surface quality owing to be to realize that by air-flow negative pressure absorbs greasy dirt.Cold-rolling mill strip surface Oil sucking device provided by the invention is simple in structure, utilizes gas to realize negative pressure as media, and it is flexible to install and use condition, is easy to realize that cost is low.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. cold-rolling mill strip surface Oil sucking device, it is characterized in that, comprise that negative pressure produces pipe (1) and oil exit pipe (2), described negative pressure produces on the pipe (1) has air inlet (13) and the exhaust outlet (14) that is connected, and the flow area of described exhaust outlet (14) is greater than the flow area of described air inlet (13), one end of described oil exit pipe (2) is inlet port (22), the other end produces pipe (1) with described negative pressure and links to each other, and is connected the position that produces the exhaust outlet (14) of pipe (1) near described negative pressure.
2. cold-rolling mill strip surface Oil sucking device as claimed in claim 1, it is characterized in that described oil exit pipe (2) has oil-discharging cavity (21), and this oil-discharging cavity (21) is a conical cavity, the end that this conical cavity area of section is bigger is inlet port (22), and the other end is oil drain out (23).
3. cold-rolling mill strip surface Oil sucking device as claimed in claim 2, it is characterized in that, described negative pressure produces pipe (1) and has inlet chamber (11) and the discharge chamber (12) that is connected, the air inlet (13) that described negative pressure produces on the pipe (1) links to each other with described inlet chamber (11), one end of described discharge chamber (12) is exhaust outlet (14), and the flow area of described inlet chamber and (11) discharge chamber (12) joint is the minimum place of two chamber flow areas.
4. cold-rolling mill strip surface Oil sucking device as claimed in claim 3, it is characterized in that, one end of the oil drain out (23) of described oil exit pipe (2) stretches into the discharge chamber (12) that described negative pressure produces pipe (1), and leaves the gap between described oil exit pipe (2) and the described discharge chamber (12).
5. cold-rolling mill strip surface Oil sucking device as claimed in claim 4 is characterized in that described discharge chamber (12) is a conical cavity, and this discharge chamber (12) is bigger away from the flow area of an end of described oil exit pipe (2).
6. cold-rolling mill strip surface Oil sucking device as claimed in claim 5 is characterized in that, described oil exit pipe (2) and described negative pressure produce pipe (1) and be equipped with and fixedly prolong the limit, and by the limit of fixedly prolonging that screw passes the two the two is fixed.
7. cold-rolling mill strip surface Oil sucking device as claimed in claim 6 is characterized in that, is provided with sealing device between the limit at described oil exit pipe (2) and fixedly prolonging of (1) of described negative pressure generation pipe.
8. cold-rolling mill strip surface Oil sucking device as claimed in claim 6 is characterized in that, described air inlet (13) is opened in described negative pressure and produces on the sidewall of pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105460554A CN102049430B (en) | 2010-11-15 | 2010-11-15 | Oil suction device on strip surface of cold-rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105460554A CN102049430B (en) | 2010-11-15 | 2010-11-15 | Oil suction device on strip surface of cold-rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102049430A true CN102049430A (en) | 2011-05-11 |
| CN102049430B CN102049430B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105460554A Active CN102049430B (en) | 2010-11-15 | 2010-11-15 | Oil suction device on strip surface of cold-rolling mill |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8500746A (en) * | 1985-03-15 | 1986-10-01 | Hoogovens Groep Bv | Cleaning method for rolling mill strip - has current of air passed over strip surface and into suction head |
| CN2353460Y (en) * | 1998-11-24 | 1999-12-15 | 江秋贵 | Pneumatic cleaning head |
| EP1388375A2 (en) * | 2002-08-07 | 2004-02-11 | Softal Electronic Erik Blumenfeld Gmbh & Co. | Method and device for cleaning the surfaces of moving material webs |
| CN2803551Y (en) * | 2004-11-23 | 2006-08-09 | 中色科技股份有限公司 | Vacuum degreaser of strip roll |
| CN201889324U (en) * | 2010-11-15 | 2011-07-06 | 西南铝业（集团）有限责任公司 | Strip surface oil suction device |
-
2010
- 2010-11-15 CN CN2010105460554A patent/CN102049430B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8500746A (en) * | 1985-03-15 | 1986-10-01 | Hoogovens Groep Bv | Cleaning method for rolling mill strip - has current of air passed over strip surface and into suction head |
| CN2353460Y (en) * | 1998-11-24 | 1999-12-15 | 江秋贵 | Pneumatic cleaning head |
| EP1388375A2 (en) * | 2002-08-07 | 2004-02-11 | Softal Electronic Erik Blumenfeld Gmbh & Co. | Method and device for cleaning the surfaces of moving material webs |
| CN2803551Y (en) * | 2004-11-23 | 2006-08-09 | 中色科技股份有限公司 | Vacuum degreaser of strip roll |
| CN201889324U (en) * | 2010-11-15 | 2011-07-06 | 西南铝业（集团）有限责任公司 | Strip surface oil suction device |
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| Publication number | Publication date |
|---|---|
| CN102049430B (en) | 2012-08-22 |
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