CN105107854B - Environmental-friendly steel plate surface cleaning method - Google Patents
Environmental-friendly steel plate surface cleaning method Download PDFInfo
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- CN105107854B CN105107854B CN201510625228.4A CN201510625228A CN105107854B CN 105107854 B CN105107854 B CN 105107854B CN 201510625228 A CN201510625228 A CN 201510625228A CN 105107854 B CN105107854 B CN 105107854B
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- steel plate
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- water sand
- steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/029—Liquid recovering devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses an environmental-friendly steel plate surface cleaning method. In the process that a steel plate moves towards a recoiling machine through a roller bed, water sand flow ejectors arranged on the upper surface and the lower surface of the steel plate eject water sand flow to the upper surface and the lower surface of the steel plate simultaneously, and the speed is 35-50 m/s; certain angles are formed between the water sand flow and the surfaces of the steel plate, and the angles are 10-30 degrees; rust and oil slick on the steel plate leave the surfaces under the collisions of the high-speed water sand flow and flow away along with water sand, and meanwhile the roughness of the surfaces of the steel plate is reduced. The water sand flow containing the rust and the oil slick flows into an electromagnetic separator, the rust is separated out, and the rest of the water sand flow enters a steel sand separator; steel sand is separated out when the water sand flow passes through the steel sand separator and can continue to be mixed with water to serve as high-speed water sand flow; the mixture of the oil slick and water enters a filtering device, and the oil slick is carried away by an oil slick collector. Meanwhile, the water sand media can be circularly used, pollution is avoided, and environmental friendliness is achieved. The technological method is simple, performance is stable, the practical effect is good, and investment cost is low.
Description
Technical field
The invention belongs to steel plate forming field, the surface of steel plate clean method of more particularly to a kind of environmental protection.
Background technology
Recently as expanding economy, the demand sharp increase of steel plate, the particularly fast development of automobile industry are right
Steel plate is put forward higher requirement.Current conventional steel plate is typically all acid-cleaning plate.Acid-cleaning plate is with high-quality SPHC as original
Material, Jing pickling unit removes oxide layer, trimming, after finishing, surface quality and use requirement（Mainly cold roll forming or stampability
Energy）BetweenHot rolled plateWithCold-reduced sheetBetween intermediate products, be part hot rolled plate and the preferable substitute products of cold-reduced sheet.With hot rolling
Plate is compared, and the advantage of acid-cleaning plate is essentially consisted in：1）Surface quality is good, because hot rolling acid-cleaning plate eliminates scale on surface, carries
The high surface quality of steel, is easy to welding, oiling and japanning.2）Dimensional accuracy is high, it is smooth after, can make template that certain change occurs
Change, so as to reduce the deviation of unevenness.3）Surface smoothness is improve, appearance is enhanced.
But, the pickling of steel plate also brings many problems, such as a large amount of to consume ferrous materials and acid；Reduce the physical of steel
Energy；Bring a series of problem of environmental pollution.Steel or part are surface-treated using acid cleaning process, due to the product of steel
The scale of kind, the specification of product and production is different, has very big in terms of producing equipment and production environment so as to cause
Difference.Sealing such as pickling cell body, the ventilation air draft to the burn into Pickling-shop of production equipment, the discharge of acid mist and process with
And the aspect such as the process and discharge of sewage, processing method and process level differ greatly.So as to many environmental protection sides can be brought
The problem in face, and need to be acted upon one by one and solve.With the raising of environmental requirement, pickling will be phased out.
The content of the invention
The serious problem of caused environmental pollution in order to overcome existing method, the present invention provides a kind of steel of environmental protection
The iron rust and oil slick of surface of steel plate are removed in plate surface clean method, its impact by using high speed water sand flow to surface of steel plate,
The roughness on surface is reduced, steel plate overall performance is significantly improved；Simultaneously slurry can be recycled, pollution-free, green ring
Protect.
The technical solution used in the present invention is：
A kind of surface of steel plate clean method of environmental protection, comprises the following steps：
1）Pass through roller-way in re-reeler motion process in steel plate, the water sand stream transmitter for being arranged in steel plate upper and lower surface is same
When to steel plate upper and lower surface jet velocity for 35-50m/s water sand stream；Water sand stream forms certain angle, angle with surface of steel plate
Size is 10 ° -30 °；
2）Iron rust and oil slick on steel plate leaves surface under high speed water sand flow shock, as water sand flows away together；
3）Water sand containing iron rust and oil slick is flowed in electromagnetic separator, and iron rust therein is separated, and remaining is entered into
Steel sand separator；
4）When by steel sand separator, steel sand is separated, and can continue to mix with water as water sand stream；
5）The mixture of oil slick and water enters filter, and oil slick is taken away by floating-oil collector；Remaining water is through again
Filter and be continuing with as recirculated water after lowering the temperature；
6）Recirculated water and steel sand enter water sand injector after mixing in water sand blender continues to steel plate rust cleaning and oil slick.
The step 1）Water sand flow velocity degree be 40m/s.
The step 1）Middle water sand stream is 30 ° with the angular dimension that surface of steel plate is formed.
Step 5）Filter be screen pack.
The invention has the beneficial effects as follows：
The process that the present invention is provided is simple, stable performance, good practical effect, low cost；Steel plate can effectively be removed
On iron rust and oil slick, reduce the roughness of surface of steel plate, improve the overall performance of steel plate；Simultaneously slurry can be followed
Ring is used, pollution-free, environmental protection.
Using a kind of surface of steel plate clean method of environmental protection, the iron rust and oil slick on steel plate can be effectively removed, be dropped
The low roughness of surface of steel plate, improves the overall performance of steel plate；Simultaneously slurry can be recycled, pollution-free, green
Colour circle is protected.
It is described in detail below with reference to accompanying drawing.
Description of the drawings book
Fig. 1 is course of work schematic diagram of the present invention.
Fig. 2 is present device schematic device.
In figure, reference：1st, roller-way；2nd, water sand stream transmitter；3rd, re-reeler 4, water sand blender；5th, electromagnetism is separated
Device；6th, steel sand separator；7th, filter；8th, floating-oil collector；9th, steel grit collector.
Specific embodiment
Embodiment 1：
The serious problem of caused environmental pollution in order to overcome existing method, the present invention provides one kind as shown in Figure 1
Surface of steel plate is removed in the surface of steel plate clean method of environmental protection, its impact by using high speed water sand flow to surface of steel plate
Iron rust and oil slick, reduce surface roughness, significantly improve steel plate overall performance；Simultaneously slurry can be recycled,
It is pollution-free, environmental protection.
A kind of surface of steel plate clean method of environmental protection, comprises the following steps：
1）Pass through roller-way 1 in the motion process of re-reeler 3 in steel plate, be arranged in the water sand stream transmitter of steel plate upper and lower surface
2 simultaneously to the water sand stream that steel plate upper and lower surface jet velocity is 35m/s；Water sand stream forms certain angle, angle with surface of steel plate
Size is 10 ° -30 °；
2）Iron rust and oil slick on steel plate leaves surface under high speed water sand flow shock, as water sand flows away together；
3）Water sand containing iron rust and oil slick is flowed in electromagnetic separator 5, and iron rust therein is separated, and remaining is entered into
Steel sand separator 6；
4）When by steel sand separator 6, steel sand is separated, and can continue to mix with water as water sand stream；
5）The mixture of oil slick and water enters filter 7, and oil slick is taken away by floating-oil collector 8；Remaining water is through again
It is continuing with as recirculated water after secondary filtration and cooling；
6）Recirculated water and steel sand enter water sand injector after mixing in water sand blender 4 continues to eliminate rust steel plate and floating
Oil.
Pass through roller-way 1 in the motion process of re-reeler 3 in steel plate, be arranged in the water sand stream transmitter 2 of steel plate upper and lower surface
Simultaneously to steel plate upper and lower surface injection water sand flow, speed is in 30m/s；Water sand stream forms certain angle with surface of steel plate, and angle is big
Little is 30 °；Iron rust and oil slick on steel plate leaves surface under high speed water sand flow shock, as water sand flows away together, meanwhile, steel
The roughness of plate surface is reduced.
Water sand containing iron rust and oil slick is flowed in electromagnetic separator 5, and iron rust therein is separated, and remaining enters into steel
Sand separator 6；When by steel sand separator 6, steel sand is separated, and can continue to mix with water as high speed water sand flow；It is floating
The mixture of oil and water enters filter 7, and oil slick is taken away by floating-oil collector 8；Remaining water is through filtering again and lowering the temperature
It is continuing with as recirculated water afterwards；Recirculated water and steel sand enter water sand injector after mixing in a mixer continues to eliminate rust steel plate
And oil slick.
As shown in Fig. 2 the connection of each equipment room in the present invention is, water sand blender 4 is connected with electromagnetic separator 5,
The lower section of electromagnetic separator 5 connects steel sand separator 6, and there are the steel grit collector 9 for collecting iron rust, steel sand in the right of steel sand separator 6
The port of export of collector 9 is connected with the entrance of water sand blender 4, and the lower section of steel sand separator 6 is connected with filter 7, filters dress
Putting 7 one end and being connected with floating-oil collector 8 carries out floating oil collecting, and oil slick is taken away by floating-oil collector 8, the other end of filter 7 with
The entrance connection of water sand blender 4, the recirculated water after the other end of filter 7 is filtered enters water sand blender 4 with steel sand collection
Steel sand mixing in device 9, the cleaning for being repeated.
Water sand blender 4 is well mixed the water sand in blender, when the method that the present invention is provided carries out separating cleaning,
Water sand is repeatable to be recycled, effectively and environmentally friendly.
The process is simple, stable performance, good practical effect, low cost；Can effectively remove iron rust on steel plate and
Oil slick, reduces the roughness of surface of steel plate, improves the overall performance of steel plate；Simultaneously slurry can be recycled, nothing
Pollution, environmental protection.
Using a kind of surface of steel plate clean method of environmental protection, the iron rust and oil slick on steel plate can be effectively removed, be dropped
The low roughness of surface of steel plate, improves the overall performance of steel plate；Simultaneously slurry can be recycled, pollution-free, green
Colour circle is protected.
Embodiment 2：
A kind of surface of steel plate clean method of environmental protection is provided in the present embodiment, is comprised the following steps：
1）Pass through roller-way 1 in the motion process of re-reeler 3 in steel plate, be arranged in the water sand stream transmitter of steel plate upper and lower surface
2 simultaneously to the water sand stream that steel plate upper and lower surface jet velocity is 50m/s；Water sand stream forms certain angle, angle with surface of steel plate
For 30 °；
2）Iron rust and oil slick on steel plate leaves surface under high speed water sand flow shock, as water sand flows away together；
3）Water sand containing iron rust and oil slick is flowed in electromagnetic separator 5, and iron rust therein is separated, and remaining is entered into
Steel sand separator 6；
4）When by steel sand separator 6, steel sand is separated, and can continue to mix with water as water sand stream；
5）The mixture of oil slick and water enters filter 7, and oil slick is taken away by floating-oil collector 8；Remaining water is through again
It is continuing with as recirculated water after secondary filtration and cooling；
6）Recirculated water and steel sand enter water sand injector after mixing in water sand blender 4 continues to eliminate rust steel plate and floating
Oil.
Step 5）Filter 7 be screen pack.Filtered using screen pack in the present embodiment, the filtration for effectively providing
Degree of purity and the feature of environmental protection.
Pass through roller-way 1 in the motion process of re-reeler 3 in steel plate, be arranged in the water sand stream transmitter 2 of steel plate upper and lower surface
Simultaneously to steel plate upper and lower surface injection water sand flow, speed is in 30m/s；Water sand stream forms certain angle with surface of steel plate, and angle is big
Little is 30 °；Iron rust and oil slick on steel plate leaves surface under high speed water sand flow shock, as water sand flows away together, meanwhile, steel
The roughness of plate surface is reduced.
Water sand blender 4 is connected with electromagnetic separator 5, and the lower section of electromagnetic separator 5 connects steel sand separator 6, and steel sand is separated
There is the steel grit collector 9 for collecting iron rust the right of device 6, and the port of export of steel grit collector 9 is connected with the entrance of water sand blender 4,
The lower section of steel sand separator 6 is connected with filter 7, and the one end of filter 7 is connected with floating-oil collector 8 and carries out floating oil collecting, floats
Oil is taken away by floating-oil collector 8, and the other end of filter 7 is connected with the entrance of water sand blender 4, the other end mistake of filter 7
Recirculated water after filter mixes into water sand blender 4 with the steel sand in steel grit collector 9, the cleaning for being repeated.
The process is simple, stable performance, good practical effect, low cost；Can effectively remove iron rust on steel plate and
Oil slick, reduces the roughness of surface of steel plate, improves the overall performance of steel plate；Simultaneously slurry can be recycled, nothing
Pollution, environmental protection.
Using a kind of surface of steel plate clean method of environmental protection, the iron rust and oil slick on steel plate can be effectively removed, be dropped
The low roughness of surface of steel plate, improves the overall performance of steel plate；Simultaneously slurry can be recycled, pollution-free, green
Colour circle is protected.
Embodiment 3：
A kind of surface of steel plate clean method of environmental protection, comprises the following steps：
1）Pass through roller-way 1 in the motion process of re-reeler 3 in steel plate, be arranged in the water sand stream transmitter of steel plate upper and lower surface
2 simultaneously to the water sand stream that steel plate upper and lower surface jet velocity is 40m/s；Water sand stream forms certain angle, angle with surface of steel plate
For 10 °；
2）Iron rust and oil slick on steel plate leaves surface under high speed water sand flow shock, as water sand flows away together；
3）Water sand containing iron rust and oil slick is flowed in electromagnetic separator 5, and iron rust therein is separated, and remaining is entered into
Steel sand separator 6；
4）When by steel sand separator 6, steel sand is separated, and can continue to mix with water as water sand stream；
5）The mixture of oil slick and water enters filter 7, and oil slick is taken away by floating-oil collector 8；Remaining water is through again
It is continuing with as recirculated water after secondary filtration and cooling；
6）Recirculated water and steel sand enter water sand injector after mixing in water sand blender 4 continues to eliminate rust steel plate and floating
Oil.
Pass through roller-way 1 in the motion process of re-reeler 3 in steel plate, be arranged in the water sand stream transmitter 2 of steel plate upper and lower surface
Simultaneously to steel plate upper and lower surface injection water sand flow, in the present invention, be arranged in the water sand stream transmitter 2 of steel plate upper and lower surface simultaneously to
The water sand stream velocity interval of steel plate upper and lower surface injection can reach the effect of rust cleaning between 35-50m/s.
Water sand stream forms certain angle with surface of steel plate, and angular dimension is to reach above-mentioned rust cleaning between 10 ° -30 °
Purpose；Iron rust and oil slick on steel plate leaves surface under high speed water sand flow shock, as water sand flows away together, meanwhile, steel plate
The roughness on surface is reduced.
Water sand blender 4 is connected with electromagnetic separator 5, and the lower section of electromagnetic separator 5 connects steel sand separator 6, and steel sand is separated
There is the steel grit collector 9 for collecting iron rust the right of device 6, and the port of export of steel grit collector 9 is connected with the entrance of water sand blender 4,
The lower section of steel sand separator 6 is connected with filter 7, and the one end of filter 7 is connected with floating-oil collector 8 and carries out floating oil collecting, floats
Oil is taken away by floating-oil collector 8, and the other end of filter 7 is connected with the entrance of water sand blender 4, the other end mistake of filter 7
Recirculated water after filter mixes into water sand blender 4 with the steel sand in steel grit collector 9, the cleaning for being repeated.
The process is simple, stable performance, good practical effect, low cost；Can effectively remove iron rust on steel plate and
Oil slick, reduces the roughness of surface of steel plate, improves the overall performance of steel plate；Simultaneously slurry can be recycled, nothing
Pollution, environmental protection.
Using a kind of surface of steel plate clean method of environmental protection, the iron rust and oil slick on steel plate can be effectively removed, be dropped
The low roughness of surface of steel plate, improves the overall performance of steel plate；Simultaneously slurry can be recycled, pollution-free, green
Colour circle is protected.
Obviously, embodiments described above is only a part of embodiment of the invention, rather than the embodiment of whole.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
Claims (4)
1. the surface of steel plate clean method of a kind of environmental protection, it is characterised in that：Comprise the following steps：
1）Pass through roller-way in steel plate（1）To re-reeler（3）In motion process, the water sand stream transmitter of steel plate upper and lower surface is arranged in
（2）Simultaneously to the water sand stream that steel plate upper and lower surface jet velocity is 35-50m/s；Water sand stream forms certain angle with surface of steel plate,
Angular dimension is 10 ° -30 °；
2）Iron rust and oil slick on steel plate leaves surface under high speed water sand flow shock, as water sand flows away together；
3）Water sand containing iron rust and oil slick is flowed into electromagnetic separator（5）In, iron rust therein is separated, and remaining enters into steel
Sand separator（6）；
4）By steel sand separator（6）When, steel sand is separated, and can continue to mix with water as water sand stream；
5）The mixture of oil slick and water enters filter（7）, oil slick is by floating-oil collector（8）Take away；Remaining water is through again
It is continuing with as recirculated water after secondary filtration and cooling；
6）Recirculated water and steel sand are in water sand blender（4）Enter water sand injector after middle mixing to continue to steel plate rust cleaning and oil slick.
2. the surface of steel plate clean method of a kind of environmental protection according to claim 1, it is characterised in that：The step 1）
Water sand flow velocity degree be 40m/s.
3. the surface of steel plate clean method of a kind of environmental protection according to claim 1, it is characterised in that：The step 1）
Middle water sand stream is 30 ° with the angular dimension that surface of steel plate is formed.
4. the surface of steel plate clean method of a kind of environmental protection according to claim 1, it is characterised in that：Step 5）Mistake
Filter device（7）For screen pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510625228.4A CN105107854B (en) | 2015-09-28 | 2015-09-28 | Environmental-friendly steel plate surface cleaning method |
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|---|---|---|---|
| CN201510625228.4A CN105107854B (en) | 2015-09-28 | 2015-09-28 | Environmental-friendly steel plate surface cleaning method |
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| CN105107854B true CN105107854B (en) | 2017-05-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105643470A (en) * | 2016-02-04 | 2016-06-08 | 江苏鑫华能环保工程股份有限公司 | Wet type steel strip acidless descaling technology and equipment of technology |
| CN109333374A (en) * | 2018-12-03 | 2019-02-15 | 山西太钢不锈钢股份有限公司 | Surface of steel plate oxide removal method |
| CN112792144A (en) * | 2020-12-14 | 2021-05-14 | 张家港扬子江冷轧板有限公司 | Cleaning section and cleaning method for cold-rolled strip steel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE158729T1 (en) * | 1992-07-31 | 1997-10-15 | Danieli Off Mecc | DESCALE DEVICE USING WATER |
| CN101862992A (en) * | 2007-08-24 | 2010-10-20 | 万文涛 | Water-sand circulating dustless dust removing process |
| CN102756003B (en) * | 2011-04-28 | 2015-04-22 | 宝山钢铁股份有限公司 | Continuous jet descaling system for cold-state metal part surface |
| CN102274865A (en) * | 2011-08-23 | 2011-12-14 | 江苏诚德钢管股份有限公司 | Cold drawing seamless steel pipe inner and outer surface high-pressure water jet cold state descaling process |
| CN203900128U (en) * | 2014-06-27 | 2014-10-29 | 浙江宝利亚管业有限公司 | Band steel sand washing device |
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