CN106391736B - A kind of belt steel surface processing method - Google Patents
A kind of belt steel surface processing method Download PDFInfo
- Publication number
- CN106391736B CN106391736B CN201610898569.3A CN201610898569A CN106391736B CN 106391736 B CN106391736 B CN 106391736B CN 201610898569 A CN201610898569 A CN 201610898569A CN 106391736 B CN106391736 B CN 106391736B
- Authority
- CN
- China
- Prior art keywords
- steel surface
- belt steel
- strip
- incinerator
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- B21B45/004—Heating the product
-
- 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
- B21B45/0275—Cleaning devices
- B21B45/0278—Cleaning devices removing liquids
-
- 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
- B21B45/0287—Cleaning devices removing solid particles, e.g. dust, rust
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The present invention provides a kind of belt steel surface processing method, and this method includes at least following steps 1）It is sprayed to the belt steel surface in incinerator after high-temperature gas is pressurizeed；2）Belt steel surface is once scrubbed；3）Secondary scrub is carried out to belt steel surface.The present invention effectively removes the attachments such as the ROLLING OIL of belt steel surface, iron powder, makes full use of the heat in burning waste gas of annealing furnace, does not use a large amount of lye, energy conservation and environmental protection, and production cost is low.
Description
Technical field
The present invention relates to technical field of steel rolling, and tinuous production cleaning surface of strip steel is post-processed more particularly to a kind of strip
Control method with high-strength steel galvanized steel surface preoxidizing and its application, and in particular to a kind of belt steel surface processing method.
Background technology
Cold-strip Steel Surface carries a large amount of residues, and mainly based on iron powder and ROLLING OIL, total amount is generally up to
300mg/m2~600mg/m2(single side).It is both provided with cleaning section in the zinc-plated and continuous annealing unit of cold rolling post treatment line, it is therefore an objective to clear
Except these dirts of belt steel surface.And greasy filth and iron powder that undesirable raw material surface can retain are cleaned, galvanized sheet can be seriously affected
Platability and continuous annealing plate surface quality.
The cleaning of traditional cleaning section is：It is clear that spray impregnates alkali cleaning (chemistry)+alkali scrub (physics+chemistry)+electrolysis
+ combined multi-stage the cleaning of water scrub+water rinsing is washed, complex process, equipment is huge, and operating cost is higher.Such cleaning section,
Use the degreasing agent and desalted water largely based on the composition of alkali.In order to avoid the generation of foam, antifoaming agent is also used.It is raw
In production, a large amount of discharge of wastewater can be caused, the processing cost containing alkali waste water is very high, and causes prodigious pressure to environmental protection.
The cost of degreasing agent itself is also relatively high.Such operational characteristic does not meet environmental protection and the power conservation requirement of modern plant, reduces
Discharge and the use for reducing chemical agent are the projects that our this industry is present and pays close attention to from now on.
Contain more alloying element, such as manganese, silicon etc. in the body of high-strength steel.These alloying elements can cause galvanized wire
Platability caused by the wellability of belt steel surface and zinc liquid is deteriorated can be poor.General high-strength steel galvanized wire, using pre- oxygen in stove
The method of change is solidificated in subsurface stratum after aoxidizing alloying element, prevents alloying element to be enriched in belt steel surface and selectivity occurs
External oxidation so that the wellability of belt steel surface and zinc liquid is greatly improved, and can be plated to realize high-strength steel.But pre-oxidation in stove
Complex process, control difficulty are very big.Main cause is strip in the stove of annealing furnace, and the oxidated layer thickness on surface can not be surveyed
Amount, and oxidated layer thickness is related with many factors, such as：The alloying element type of raw material, preceding procedure technology governing factor, annealing
Furnace atmosphere distribution curve, annealing furnace temperature curve etc..Oxide layer is too thin, cannot play and be solidificated in Asia after aoxidizing alloying element
The effect on surface layer, alloying element will reduce platability.Oxide layer is too thick, and oxide layer cannot be reduced into pure by the rear process of annealing furnace
Iron also cannot achieve zinc-plated.It is available that there is presently no ripe mathematical models.Controllable belt steel surface oxidation technology is to break through height
The key of strong galvanizing steel technology.
Invention content
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of belt steel surface processing method and
System is needed for solving the when of handling in the prior art belt steel surface using a large amount of lye, to the pre-oxidation layer of high-strength steel
The problems such as thickness is difficult to control.
In order to achieve the above objects and other related objects, first aspect present invention provides a kind of belt steel surface processing method,
Including at least following steps：
1) it is sprayed to the belt steel surface in incinerator after high-temperature gas pressurizeing；
2) belt steel surface is once scrubbed；
3) secondary scrub is carried out to belt steel surface.
Further, in step 1), the high-temperature gas includes the burning waste gas of annealing furnace.
Further, in step 1), the high-temperature gas includes the burning waste gas of annealing furnace, air.Annealing furnace burns
Exhaust gas temperature is generally 300 DEG C~600 DEG C, and air is mixed into exhaust gas and reaches the mesh such as the oxygen content adjusted in in-furnace temperature and stove
's.
Further, in step 1), the belt steel surface temperature in incinerator is controlled at 200 DEG C~350 DEG C.The surface of strip
Temperature is that (radiant-energy thermometer for measuring the surface temperature of strip is arranged two to final control targe：On the direction of strip operation, burn
The centre position for burning stove is arranged one, and outlet port is arranged one), according to the kind of preceding process cold rolling oil, using difference
Temperature, the control of belt steel surface temperature is at 200 DEG C~350 DEG C in incinerator.The temperature of furnace atmosphere is above the surface of strip
Temperature, therefore, the temperature of furnace atmosphere is not as control targe.
Further, further include that combustion gas is passed through into incinerator, and by the gaseous mixture of combustion gas and high-temperature gas in step 1)
Body is lighted.When the temperature of high-temperature gas is relatively low, it is passed through combustion gas into incinerator, and by the mixed gas of combustion gas and high-temperature gas
It lights, and then promotes the gas temperature in incinerator.
Further, the combustion gas be can be natural gas, mixed gas, liquefied petroleum gas etc..
Further, in step 2), belt steel surface is once scrubbed using scrub-brush；In step 3), using fur
Brush carries out secondary scrub to belt steel surface.
Further, it in step 2), first sprays water to belt steel surface, then one is carried out to belt steel surface using scrub-brush
Secondary scrub；In step 3), desalted water first is sprayed to belt steel surface, then secondary scrub is carried out to belt steel surface using banister brush.
Further, further include step 4), by step 3), treated that strip squeezed, is dried.
Further, the strip is high strength band steel, in step 1), before strip enters incinerator, is first sprayed to belt steel surface
Jetting mist changes the dew point in stove, achievees the purpose that control oxidated layer thickness；In step 4), the strip after drying is carried out
Oxidated layer thickness detects, and testing result is fed back to step 1), and the gas temperature in incinerator is adjusted according to the testing result
And stokehold strip atomized water spray amount.The method that furnace gas temperature is burned in adjustment mainly has：When in-furnace temperature is relatively low, it is passed through
Combustion gas is simultaneously lighted, and then improves furnace gas temperature；When in-furnace temperature is higher, the inlet of reduction annealing furnace exhaust, and to
It is passed through fresh air in exhaust gas, and then reduces the gas temperature in incinerator.The transmission of the detection information of oxidated layer thickness is burned
Gas temperature, stokehold strip atomized water spray amount in stove etc. are realized by electric-control system.
Further, it anneals to the strip after drying, the burning waste gas of annealing furnace is back to the burning of step 1)
It is recycled in stove.
Further, in step 1), the gas in incinerator is emitted into outside stove.
Second aspect of the present invention provides a kind of belt steel surface processing system, including is burnt successively to what strip was surface-treated
Burn stove, the first brush roll, the second brush roll.
First brush roll is the brush roll with scrub-brush, and the progress first time scrub to belt steel surface, the first brush roll specifically may be used
Think grinding brush roll etc., bristle the scrubbing to belt steel surface on brush roll, the scrub-brush for grinding brush roll is same to belt steel surface
When play grinding and scrubbing action.
Second brush roll is the brush roll with banister brush, and second of scrub of progress to belt steel surface, the second brush roll specifically may be used
Think fur brush roll etc., strip after first time scrubs, surface also remains a small amount of iron powder and industry water contain it is various
Impurity and heavy metal etc. need the fur by the second brush roll to carry out second and scrub.
Further, the incinerator is communicated with introduces pipeline for conveying the exhaust gas of annealing furnace exhaust.
Further, pipeline passes sequentially through plenum chamber, spraying machine is connected to the incinerator for the exhaust gas introducing.Annealing furnace
Exhaust gas pipeline introduced by exhaust gas enter plenum chamber, then be sprayed onto belt steel surface after spraying machine pressurizes, you can removal strip table
The attachments such as a large amount of ROLLING OILs in face, iron powder, while oxidation also is played to belt steel surface.
Further, the plenum chamber is communicated with air introduction duct, when the annealing furnace exhaust gas temperature being passed through is excessively high, to
Air is passed through in plenum chamber so that air is mixed with exhaust gas, plays the role of reducing temperature, in addition, the oxygen gas and water etc. in air
Also oxidation can be played to belt steel surface.
Oxygen analyzer and dew point analysis instrument are provided in stove, to detect the oxygen content and dew point of furnace atmosphere.In stove
It is additionally provided with radiant-energy thermometer, for measuring the temperature of belt steel surface.Oxygen analyzer, dew point analysis instrument, radiant-energy thermometer are electric
Property is connected to electric-control system, testing result is fed back to electric-control system, electric-control system adjusts the entrance of exhaust gas, air as needed
Amount also can adjust the inlet of combustion gas and igniting, for high strength band steel, the atomized water spray of the also adjustable stokehold strip of electric-control system
Amount etc..
Further, the jet pipe being connected to the air outlet of the spraying machine is equipped in the incinerator, jet pipe, which is dispersed in, to be burnt
Burn stove inner wall so that by injection gas treatment, dead angle is not present in each position of belt steel surface.
Further, pipeline and the spark plug for igniting are passed through equipped with combustion gas in the incinerator.
Further, further include positioned at the incinerator upstream and to the hydraulic spray nozzle of strip progress atomized water spray.
Further, further include for exclude burn furnace gas wind turbine.Wind turbine will be handled in incinerator after strip
Gas take away, and then take away impurity, it avoided to remain in belt steel surface again.
Further, the first slewing rollers for being turned to strip, institute are equipped between the incinerator, the first brush roll
State the second slewing rollers being equipped between the first brush roll, the second brush roll for being turned to strip.Two slewing rollers efficiently use
Place space, avoids the straight length of system long, also, the first slewing rollers also can effectively avoid the shower water recoil in downstream
Into incinerator.
Further, further include the first spray equipment sprayed water to strip when the first brush roll handles strip, the
The second spray equipment of spray desalted water is carried out when two brush rolls handle strip to strip, the downstream of second brush roll is sequentially installed with
Strip is carried out extracting the squeeze roller of processing, carries out the drying box of drying and processing to strip, for detecting belt steel surface oxide layer
The oxide layer detection device of thickness；Further include the work box for collecting the first spray equipment, the second spray equipment processing water, institute
The water outlet for stating work box is connected to the water inlet of first spray equipment.
Further, the water outlet of work box passes sequentially through magnetic filter, circulating box, water pump and is connected to the first spray dress
The water inlet set, magnetic filter played the role of iron powder in drainage, were received by circulating box by magnetic filter treated water
Collection, by water pump pumps to the first spray equipment, realizes recycling for water.
As described above, the belt steel surface processing method and system of the present invention, have the advantages that：The present invention can be used for
Galvanizing (GI and GA), plated aluminium, zinc, silicon (55%Al-Zn-Si), hot dip zinc-aluminium silicon (5%Al-Zn-Si), hot-dip aluminizing zinc
The common plates galvanizings such as magnesium, hot-dip aluminizing silicon and high-strength steel galvanizing field, can be used for strip continuous annealing unit.
The present invention has following advantage compared with conventional clean section：
1) any chemical agent can not be used, pollution is reduced, reduces cost.
2) running discharge is only waste water containing iron powder, without any chemical agent composition, special processing that it goes without doing, only
It can be discharged after simple precipitation, there is no pressure to environmental protection.
3) since present invention uses the waste-gas heats of annealing furnace so that operation cost greatly will be low, total operation cost
About the 1/5 of conventional clean section.
4) since present device is simple, disposable apparatus investment is low.
The advantage that the present invention is compared with traditional high-strength steel hot dip galvanizing process：Stove external oxidation mode opens new technique road
Line, plate face degree of oxidation is controllable, and control method is simple, direct, effective.
It is more convenient that high-strength steel galvanized wire is transformed into for common galvanized wire, annealing furnace need not be transformed, you can
Realize the production of high-strength steel galvanizing.
Description of the drawings
Fig. 1 is shown as the belt steel surface processing system structural schematic diagram of the embodiment of the present invention.
Fig. 2 is shown as the circulating system structure schematic diagram of the embodiment of the present invention.
Piece mark explanation
1-strip
2-hydraulic spray nozzles
3-incinerators
4-spraying machines
5-jet pipes
6-combustion gas are passed through pipeline
The injection sealing of 7-air
8-wind turbines
9-the first slewing rollers
10-the first spray equipment
11-the first brush roll
12-the second slewing rollers
13-the second spray equipment
14-the second brush roll
15-squeeze rollers
16-drying boxes
17-oxide layer detection devices
18-exhaust gas introduce pipeline
19-plenum chambers
20-air introduction ducts
21-work boxs
22-magnetic filters
23-circulating boxes
24-water pumps
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this specification below by way of specific specific example
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
A kind of belt steel surface processing method, includes the following steps：
1) to the belt steel surface in incinerator, the high-temperature gas is mainly annealing furnace for injection after high-temperature gas pressurizeing
Burning waste gas, in order to reduce furnace gas temperature, can also be introduced since the exhaust gas temperature height of each period is different into exhaust gas
Fresh air can also be passed through combustion gas to improve furnace gas temperature into incinerator, and by the mixing of combustion gas and high-temperature gas
Gas ignition.Exhaust gas, the introducing of air, combustion gas introducing and light through electric control system controls, reach control furnace gas
The purpose of temperature, it is increasingly automated.
2) belt steel surface is once scrubbed, specifically, belt steel surface is once scrubbed using scrub-brush；In order to
Cleaning efficiency is improved, is first sprayed water to belt steel surface, then belt steel surface is once scrubbed using scrub-brush；
3) secondary scrub is carried out to belt steel surface, specifically, secondary scrub is carried out to belt steel surface using banister brush；In order to
Cleaning efficiency is improved, desalted water first is sprayed to belt steel surface, then secondary scrub is carried out to belt steel surface using banister brush.
4) by step 3), treated that strip squeezed, is dried.
Further, when strip is high strength band steel, in step 1), before strip 1 enters incinerator 3, first to 1 surface of strip
Water spray changes the dew point in stove, achievees the purpose that control belt steel surface oxidated layer thickness；In step 4), after drying
Strip carry out oxidated layer thickness detection, and testing result is fed back into step 1), is adjusted in incinerator according to the testing result
Gas temperature and stokehold strip atomized water spray amount.The method that furnace gas temperature is burned in adjustment mainly has：Work as in-furnace temperature
It when relatively low, be passed through combustion gas and light, and then improve furnace gas temperature；When in-furnace temperature is higher, reduce annealing furnace exhaust
Inlet, and fresh air is passed through into exhaust gas, and then reduce the gas temperature in incinerator.The detection information of oxidated layer thickness
Transmission, the gas temperature in incinerator, stokehold strip atomized water spray amount etc. realized by electric-control system.
As shown in Figure 1, following system may be used in the above method：A kind of belt steel surface processing system, including successively to band
Incinerator 3 that steel 1 is surface-treated, the first brush roll 11, the second brush roll 14.The annealing furnace of cold rolling post treatment line can all generate greatly
The burning waste gas of amount, the temperature without UTILIZATION OF VESIDUAL HEAT IN are about 300 DEG C~500 DEG C (after flue heat losses), and flow is about
It is 15m3/ t~35m3/ t (annealing furnace processing capacity is different), the 1/10~1/5 of interception burning waste gas of annealing furnace total amount is for this
The incinerator 3 of system.
Incinerator 3 is communicated with introduces pipeline 18 for conveying the exhaust gas of annealing furnace exhaust.Specifically, exhaust gas introduces pipeline 18
Pass sequentially through plenum chamber 19, spraying machine 4 is connected to incinerator 3, exhaust gas by spraying machine 4 pressurization after be sprayed onto 1 surface of strip.
Plenum chamber 19 is communicated with air introduction duct 20, when exhaust gas temperature is higher, introduces air and cools down, meanwhile,
Also contain a large amount of oxygen in air, combustion-supporting effect is also functioned to when being passed through combustion gas in incinerator 3.
Be equipped with the jet pipe 5 being connected to the air outlet of spraying machine 4 in incinerator 3, jet pipe 5 dissipate portion incinerator 3 inner wall, it is right
1 surface of strip carries out high-pressure jet.
It is passed through pipeline 6 and the spark plug for igniting equipped with combustion gas in incinerator 3, when furnace gas temperature is relatively low,
It is passed through combustion gas and lights, to improve furnace gas temperature.
Belt steel surface temperature in incinerator 3 is controlled at 200 DEG C -350 DEG C.The surface temperature of strip 1 is final control mesh
(radiant-energy thermometer for measuring the surface temperature of strip is arranged two to mark：On the direction of strip operation, the centre position of incinerator
One radiant-energy thermometer is set, and a radiant-energy thermometer is arranged in outlet port), according to the kind of preceding process cold rolling oil, adopt
With different temperature, the control of belt steel surface temperature is at 200 DEG C~350 DEG C in incinerator 3.The temperature of furnace atmosphere is above strip
1 surface temperature, therefore, the temperature of furnace atmosphere is not as control targe.
Further, further include positioned at 3 upstream of incinerator and to the hydraulic spray nozzle 2 of the progress atomized water spray of strip 1.Injection water
Mist can play the role of changing dew point in stove, realize the purpose of control strip oxidated layer thickness.Strip 1 is constantly run, water
Mist is sprayed on strip 1, and strip 1 is entered with dampening in stove, encounters vaporization at high temperature into steam, disperse is in furnace chamber, to increase
Dew point in stove.It is of course also possible to hydraulic spray nozzle 2 is arranged in incinerator 3, but since in-furnace temperature is higher, it will
It is more suitable in the front of incinerator 3 that hydraulic spray nozzle 2 is arranged, in order to the oxidation on 1 surface of strip.
Further, further include wind turbine 8 for excluding gas in incinerator 3, be sprayed onto at 1 surface of strip in incinerator 3
It is contained a large amount of impurities in gas after reason, processing gas is by outside 8 extraction to stove of wind turbine, avoiding impurity from remaining in strip 1 again
Surface.
The first slewing rollers 9 for being turned to strip 1, the first brush roll are equipped between incinerator 3, the first brush roll 11
11, the second slewing rollers 12 for being turned to strip 1 are equipped between the second brush roll 14.Two slewing rollers are effectively utilized field
Ground space avoids the straight length of production line long, also, the first slewing rollers 9 also can effectively avoid the shower water recoil in downstream
Into incinerator 3.
Further, further include the first spray equipment sprayed water to strip 1 when the first brush roll 11 handles strip 1
10, the second spray equipment 13 for carrying out spray desalted water to strip 1 when the second brush roll 14 handles strip 1, under the second brush roll 14
Trip, which is sequentially installed with, extract the squeeze roller 15 of processing to strip 1, the drying box 16 of drying and processing is carried out to strip 1, is used for
Detect the oxide layer detection device 17 of 1 surface oxide layer thickness of strip.
As shown in Fig. 2, in order to make full use of water, the invention also includes the circulatory system, which includes for collecting first
The work box 21 of spray equipment 10, the second spray equipment 13 processing water, the water that the first spray equipment 10 sprays all flow to work
The shower water of case 21, the second spray equipment 13 flow to work box 21 (not shown), the water outlet connection of work box 21 by pipeline
To magnetic filter 22, magnetic filter 22 carries out iron powder filtering to water, and the water outlet of magnetic filter 22 is connected to circulating box 23, follows again
The water of ring case 23 is pumped to the first spray equipment 10 by water pump 24, realizes recycling for water, saves production cost.
A kind of belt steel surface processing system provided by the invention, non-alkali liquor cleaning, can also pre-oxidize belt steel surface, use
A kind of two kinds of functions of device realization.The present invention can be used for galvanizing (GI and GA), plated aluminium, zinc, silicon (55%Al-Zn-Si), heat
Plate common plates galvanizing and the high-strength steel galvanizing fields such as zinc-aluminium silicon (5%Al-Zn-Si), hot-dip aluminizing zinc-magnesium, hot-dip aluminizing silicon.
It can be used for strip continuous annealing unit.The operational process of this system is as follows：
1) a certain amount of high-temp waste gas (without heat exchange) is introduced from the annealing furnace stack gases pipeline of unit from exhaust gas to draw
Enter pipeline 18 and enters plenum chamber 19.Meanwhile as desired by fresh air (difference with exhaust gas in residual air thus at
For fresh air) air introduction duct 20 introduces a part of fresh air and enters plenum chamber 19.
2) gas pressurized in plenum chamber 19 is assigned to the several of the furnace wall both sides of incinerator 3 by pipeline by spraying machine 4
Jet pipe 5.
3) strip 1 enters incinerator 3, and high temperature combustion exhaust and mixing air after pressurization are ejected into strip by jet pipe 5
Surface makes ROLLING OIL volatilize.
4) it is passed through pipeline 6 by being distributed across several combustion gas of 3 furnace wall both sides of incinerator, one is passed through in incinerator 3
Quantitative combustion gas is allowed to Mass in furnace chamber.Contain excessive air in the burning waste gas of annealing furnace, adds from gas collection
The fresh air that case 19 enters, burns by plug ignition after encountering combustion gas, makes the temperature rise in incinerator 3, mends
Fill the deficiency of annealing furnace exhaust gas temperature (for unit when rigid start, annealing furnace exhaust gas temperature is relatively low).
5) after ROLLING OIL volatilization, the adhesive force of iron powder declines, and high pressure gas washes away stirring belt steel surface, and part iron is washed
It is detached from belt steel surface after stirring, becomes dust, disperse is volatilized into the iron of gaseous ROLLING OIL and disperse in furnace chamber in furnace chamber
Powder dust is extracted into air flue emission by wind turbine 8 and goes out.One end of output strip 1 is equipped with air injection sealing 7 on incinerator 3,
Outlet for sealing incinerator 3 so that the processing gas in incinerator 3 is all discharged from wind turbine 8, and strip 1 is sprayed from air
It is pierced by sealing 7, into subsequent handling.
6) grinding scrub process is entered by the first slewing rollers 9 by the strip 1 of 3 preliminary treatment of incinerator.By
It after the high pressure water spray of one spray equipment 10, enters between the first brush roll 11, the first brush roll 11 is to grind brush roll, on brush roll
Scrub-brush grinding and scrub be carried out at the same time to 1 surface of strip, the shower water of the first spray equipment 10 uses common industry water
.
7) strip 1 by grinding enters the second spray equipment 13 and carries out desalination by the steering of the second slewing rollers 12
Water spray is entered back between the second brush roll 14, and the second brush roll 14 is fur brush roll, the fur on brush roll to 1 surface of strip into
Row scrub, the iron powder of 1 remained on surface of strip and carbon black (if there is) are scrubbed clean.Preferably, in the area of the second slewing rollers 12
Domain, strip 1 are scrubbed to 1 surface of strip convenient for the banister brush in downstream in the submerged state in water.
8) last strip 1, which enters, extracts and drying area, and squeeze roller 15, drying box 16 are by the water of 1 remained on surface of strip
Divide processing clean.
9) circulatory system and discharge of wastewater：First spray equipment 10 will use a large amount of industry water, the second spray equipment 13
Also it to use a certain amount of desalted water, these water all to collect in work box 21, several magnetic filters are flowed through by gravity
22 carry out iron powder filtering, and filtered water is flow back by gravity in 23 babinet of circulating box again, carry out secondary use, water pump 24 is then
Mounted on 23 side of circulating box, water pump 24 is high-pressure hydraulic pump, and the water extracted in babinet is sprayed into the first spray equipment 10,
Realize recycling for shower water.Circulating box 23 is periodically drained, and discharge capacity and the water supply of the second spray equipment 13 balance,
To keep the cleaning of water.The water inlet of second spray equipment 13 does not use the recirculated water, but uses new desalted water, avoids secondary
The impurity of light water is attached to the surface of strip 1 when scrub.
Specific processing procedure is described as follows：
It introduces and a certain amount of is introduced by pipeline without the high-temp waste gas of heat exchange from the burning waste gas of annealing furnace pipeline of unit
In plenum chamber 19 before to incinerator 3, it is passed through a certain amount of combustion gas in incinerator 3 and is allowed to Mass in furnace chamber, burning waste gas
In contain excessive air, add the mixed fresh air of burning waste gas pipeline, encounter after combustion gas by spark plug point
Fire burns, and combustion reaction is happened at the pipeline opening that exhaust piping is passed into incinerator 3, makes 3 temperature rise of incinerator, supplement
The deficiency of exhaust gas temperature (for unit when rigid start, annealing furnace exhaust gas temperature is relatively low).
It is mixed into the flow of air by control burning waste gas and is passed through the flow of 3 combustion gas of incinerator, may be implemented to burning
The control of 3 furnace temperature of stove.When furnace temperature is higher, reduces or the flow of cut-out combustion gas, increasing burning waste gas are mixed into fresh air
Flow；When furnace temperature is relatively low, gas flow is increased, while adjusting fresh air flow as needed, air is made to occur with combustion gas
Combustion reaction increases the furnace temperature of incinerator 3.
After incinerator 3, some iron powders of strip 1 remained on surface and carbon black (carbon black number depend on annealing furnace and fire
Burn it is whether abundant, the total radiation pipe heating anneal stove of cold rolling post treatment line is all the combustion system of air excess, thus carbon black compared with
It is few), strip 1 scrubs process after incinerator 3 comes out, into grinding, after high pressure water sprays, first passes through the hard of grinding brush roll
Hairbrush is ground and scrubs to 1 surface of strip, and secondary scrub is carried out to 1 surface of strip using the banister brush of fur brush roll,
The iron powder of 1 remained on surface of strip and carbon black (if there is) are scrubbed clean, while the temperature of strip 1 being reduced.It scrubs clean
Strip 1 sequentially enters squeeze roller 15, drying box 16, and the moisture solution on 1 surface of strip is clean.
The downstream of drying box 16 is equipped with carries out the oxide layer detection device 17 that oxidated layer thickness is detected to strip 1, should
Device is mainly used for being detected oxidated layer thickness when high strength band steel processing, and oxide layer detection device 17 mainly passes through inspection
Resistance on measuring tape steel thickness direction, is calculated oxidated layer thickness indirectly.Oxide layer detection device 17 is electrically connected to automatically controlled
System, oxide layer testing result feed back to electric-control system, electric-control system control according to testing result exhaust gas in incinerator 3, air,
The inlet of combustion gas and the water spray of hydraulic spray nozzle 2, several hydraulic spray nozzles 2 are arranged in corresponding to two faces of strip 1
Side ensures the whole surface of spray regime covering strip 1, and total flow is usually 0~1.2L/min, 1 surface of control strip
Degree of oxidation determines that different oxidated layer thickness, oxidated layer thickness are generally in the range of according to the different steel grade needs of high-strength steel
0~3 μm.Ordinary band steel need to reduce oxidation to the greatest extent.The system can be used for the production of the products such as high-strength steel galvanizing.Strip after processing
Surface residue≤20mg/m2/ single side.
In conclusion the present invention effectively removes the attachments such as the ROLLING OIL of belt steel surface, iron powder, annealing furnace is made full use of to fire
The heat in exhaust gas is burnt, a large amount of lye are not used, energy conservation and environmental protection can also effectively control pre-oxidation layer for high strength band steel
Thickness.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should by the present invention claim be covered.
Claims (8)
1. a kind of belt steel surface processing method, which is characterized in that include at least following steps：
1）It is sprayed to the belt steel surface in incinerator after high-temperature gas is pressurizeed；
2）Belt steel surface is once scrubbed, is first sprayed water to belt steel surface, then belt steel surface is carried out using scrub-brush
Primary scrub；
3）Secondary scrub is carried out to belt steel surface, desalted water first sprayed to belt steel surface, then using banister brush to belt steel surface into
The secondary scrub of row.
2. belt steel surface processing method according to claim 1, it is characterised in that：Step 1）In, the high-temperature gas packet
Include the burning waste gas of annealing furnace.
3. belt steel surface processing method according to claim 2, it is characterised in that：Step 1）In, the high-temperature gas packet
Include burning waste gas, the air of annealing furnace.
4. belt steel surface processing method according to claim 1, it is characterised in that：Step 1）In, the strip in incinerator
Surface temperature control is at 200 DEG C~350 DEG C.
5. belt steel surface processing method according to claim 1, it is characterised in that：Step 1）In, further include to incinerator
In be passed through combustion gas, and the mixed gas of combustion gas and high-temperature gas is lighted.
6. belt steel surface processing method according to claim 1, it is characterised in that：It further include step 4）, by step 3）Place
Strip after reason is squeezed, is dried successively.
7. belt steel surface processing method according to claim 6, it is characterised in that：The strip is high strength band steel, step
1）In, before strip enters incinerator, first to belt steel surface water spray；Step 4）In, the strip after drying is aoxidized
Layer thickness detects, and testing result is fed back to step 1）, according to the testing result adjust incinerator in gas temperature and
Stokehold strip atomized water spray amount.
8. belt steel surface processing method according to claim 6, it is characterised in that：Strip after drying is moved back
The burning waste gas of fire, annealing furnace is back to step 1）Incinerator in recycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610898569.3A CN106391736B (en) | 2016-10-14 | 2016-10-14 | A kind of belt steel surface processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610898569.3A CN106391736B (en) | 2016-10-14 | 2016-10-14 | A kind of belt steel surface processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106391736A CN106391736A (en) | 2017-02-15 |
| CN106391736B true CN106391736B (en) | 2018-09-25 |
Family
ID=59228607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610898569.3A Active CN106391736B (en) | 2016-10-14 | 2016-10-14 | A kind of belt steel surface processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106391736B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109097758A (en) * | 2017-06-21 | 2018-12-28 | 宝山钢铁股份有限公司 | A kind of hot rolling magnetic yoke steel long-acting antirust method and apparatus |
| CN111085554B (en) * | 2020-02-15 | 2020-11-13 | 苏州市永升汽车配件制造有限公司 | Hot rolling metal cooling device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201383382Y (en) * | 2009-04-24 | 2010-01-13 | 浙江长城电工科技有限公司 | Cleaning device for surface of copper wire |
| CN201470645U (en) * | 2009-09-08 | 2010-05-19 | 毕兴国 | Metal belt grease cleaning device |
| CN201908124U (en) * | 2010-12-17 | 2011-07-27 | 鞍钢新轧-蒂森克虏伯镀锌钢板有限公司 | Galvanized wire pre-oxidation device |
| CN102909226A (en) * | 2012-11-05 | 2013-02-06 | 大亚科技股份有限公司 | Aluminum foil surface residual oil pretreatment temperature control purging device and use method and application thereof |
| CN202993783U (en) * | 2012-12-14 | 2013-06-12 | 中粮包装（昆山）有限公司 | Steel plate oil removing device |
| CN103225016A (en) * | 2013-04-27 | 2013-07-31 | 宝山钢铁股份有限公司 | Strip steel surface flame cleaning method and apparatus thereof |
| CN103447259A (en) * | 2013-09-03 | 2013-12-18 | 中国大唐集团环境技术有限公司 | High-temperature deoiling device under pressure |
| CN103741160A (en) * | 2014-01-15 | 2014-04-23 | 张家港浦项不锈钢有限公司 | Method for wiping surface of strip steel |
| CN104759476A (en) * | 2015-04-29 | 2015-07-08 | 中冶南方工程技术有限公司 | Cold-rolled steel strip surface cleaning device and method |
-
2016
- 2016-10-14 CN CN201610898569.3A patent/CN106391736B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201383382Y (en) * | 2009-04-24 | 2010-01-13 | 浙江长城电工科技有限公司 | Cleaning device for surface of copper wire |
| CN201470645U (en) * | 2009-09-08 | 2010-05-19 | 毕兴国 | Metal belt grease cleaning device |
| CN201908124U (en) * | 2010-12-17 | 2011-07-27 | 鞍钢新轧-蒂森克虏伯镀锌钢板有限公司 | Galvanized wire pre-oxidation device |
| CN102909226A (en) * | 2012-11-05 | 2013-02-06 | 大亚科技股份有限公司 | Aluminum foil surface residual oil pretreatment temperature control purging device and use method and application thereof |
| CN202993783U (en) * | 2012-12-14 | 2013-06-12 | 中粮包装（昆山）有限公司 | Steel plate oil removing device |
| CN103225016A (en) * | 2013-04-27 | 2013-07-31 | 宝山钢铁股份有限公司 | Strip steel surface flame cleaning method and apparatus thereof |
| CN103447259A (en) * | 2013-09-03 | 2013-12-18 | 中国大唐集团环境技术有限公司 | High-temperature deoiling device under pressure |
| CN103741160A (en) * | 2014-01-15 | 2014-04-23 | 张家港浦项不锈钢有限公司 | Method for wiping surface of strip steel |
| CN104759476A (en) * | 2015-04-29 | 2015-07-08 | 中冶南方工程技术有限公司 | Cold-rolled steel strip surface cleaning device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106391736A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202047124U (en) | Hot rolling pickling strip steel continuous hot galvanizing production line | |
| CN104004985B (en) | A kind of nitrogen carbon oxygen composite treatment process and device | |
| CN101890418B (en) | Intrinsically safe method for exhausting oil gas of oil storage tank | |
| CN106391736B (en) | A kind of belt steel surface processing method | |
| CN202509272U (en) | Setting machine system for removing cooking fumes and recovering waste heat | |
| CN104949136A (en) | System for mixed burning industrial waste oil and grease liquid and cleaning agents in blast furnace gas boiler | |
| CN101804398A (en) | Steel plate pretreatment device | |
| CN206345920U (en) | A kind of belt steel surface processing system | |
| CN104436893A (en) | Waste gas purification and power generation system for spray booth | |
| CN110141927A (en) | A kind of blast furnace slag flushing steam based on UTILIZATION OF VESIDUAL HEAT IN disappears white system and method | |
| CN216778373U (en) | Collection and centralized purification treatment system for various waste gases in phosphorus sludge recovery process | |
| CN202808953U (en) | Steel pipe surface acid-washing treating device | |
| CN105570906B (en) | A kind of castoff processing system | |
| CN204891514U (en) | Dyeing and finishing forming machine organic waste gas processing apparatus | |
| CN204717700U (en) | A kind of waste gas treatment equipment | |
| CN204319961U (en) | A kind of paint spray booth waste gas purification electricity generation system | |
| CN207253988U (en) | A kind of exhaust treatment system for waterproofing membrane production | |
| CN201659126U (en) | Oil gas removing device for intrinsically-safe oil storage tank | |
| CN203820840U (en) | Tempering furnace with flue gas recovery and combustion characteristic | |
| CN206771383U (en) | A kind of heat accumulating type organic waste gas furnace | |
| CN206104563U (en) | Belted steel surface treatment device | |
| CN113185991B (en) | System and method for extracting volatile matters from pot-type calcining furnace and application of system and method | |
| CN207462952U (en) | A kind of self-adhesion sizing material transport system of waterproof roll production line | |
| CN211189678U (en) | Tail gas treatment equipment of formaldehyde production system | |
| CN210773506U (en) | Blast furnace taphole smoke removing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |