CN208867003U - A strip steel descaling device based on shot blasting - Google Patents
A strip steel descaling device based on shot blasting Download PDFInfo
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- CN208867003U CN208867003U CN201821533676.7U CN201821533676U CN208867003U CN 208867003 U CN208867003 U CN 208867003U CN 201821533676 U CN201821533676 U CN 201821533676U CN 208867003 U CN208867003 U CN 208867003U
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- shot
- descaling
- unit
- flow valve
- scaling
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- 229910000831 Steel Inorganic materials 0.000 title claims description 35
- 239000010959 steel Substances 0.000 title claims description 35
- 238000005422 blasting Methods 0.000 title claims description 26
- 239000000428 dust Substances 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 28
- 238000011084 recovery Methods 0.000 claims description 15
- 239000004576 sand Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 238000007670 refining Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 238000012545 processing Methods 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 239000008188 pellet Substances 0.000 description 42
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000005554 pickling Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Cleaning In General (AREA)
Abstract
The utility model provides a kind of strip descaling device based on impact, belongs to strip processing technique field.The device includes the first thick de-scaling unit, the second thick de-scaling unit, smart de-scaling unit and dust removing units, the first thick de-scaling unit, the second thick de-scaling unit and smart de-scaling unit, dust removing units are set gradually according to the strip direction of motion to be separately connected with three de-scaling units.The present apparatus is respectively provided with different running parameters for three de-scaling units, improves respective de-scaling ability, and three groups of de-scaling unit work compounds largely improve squama layer except net efficiency.
Description
Technical field
The utility model relates to strip processing technique fields, particularly relate to a kind of strip de-scaling dress based on impact
It sets.
Background technique
Belt steel surface will form fine and close brittle iron scale (being commonly called as squama layer) after hot rolling.In cold rolling, hot galvanizing or coating
Etc. before techniques, removal iron scale is indispensable preceding road technique.The quality of removing surface directly affects the table of metal
The mechanical performance of finishing coat quality and final products.
Traditional descaling process uses pickling, occurs to chemically react using acid solution and belt steel surface iron scale to remove rust deposite
And firecoat.But the pickling processes time is long, chemical reaction velocity poor controllability, can be to strip when pickling solution selection is improper or excessive
Matrix causes corrosion failure, metal surface uneven.Acid cleaning process in operation will cause centainly personnel and equipment
Damage, the discharging of waste liquid of generation will cause environmental pollution, and cause serious environmental pollution, cause integrated operation maintenance cost
It is higher.
The problems such as to solve environmental pollution, scholars begin trying research anacidity descaling process technology.Existing research shows,
Ball blast de-scaling has occupied area small, and processing speed is fast, green non-pollution, and stability is good and convenient for advantages such as regulations.However,
Ball blast de-scaling is difficult to reach very high removing rate in practical application.This is setting by impeller head angle of attack, pellet type
Choose co-determination.
Angle of attack is bigger, better to the direct impact effects of squama layer, however will lead to the reduction of de-scaling area.
Angle of attack is smaller, although poor to the direct impact effect of squama layer, can slide larger distance in belt steel surface,
The zone of action is big.
Under the premise of pellet is identical using sum, lesser pellet partial size, impact force is small, and scale removal effect is poor, however locates
Belt steel surface residual stress is small after reason, and surface roughness is small.
Pellet partial size is bigger, and impact failure effect is stronger, while being also required to bigger energy consumption, and can cause band steel matrix more
Big residual stress leads to surface processing hardening, influences subsequent cold rolling production.
The impeller head on iron and steel enterprise's production line is all affixed on de-scaling cabinet at present, i.e., angle of attack is fixed；
And for the ease of being recycled, used pellet partial size is also fixed.Therefore, above-mentioned technological deficiency inevitably restricts
The efficiency of descaling system.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of strip descaling device based on impact.
The device includes the first thick de-scaling unit, the second thick de-scaling unit, smart de-scaling unit and dust removing units, and first is thick
De-scaling unit, the second thick de-scaling unit are set gradually with smart de-scaling unit according to the strip direction of motion, and dust removing units and first are slightly
De-scaling unit, the second thick de-scaling unit and smart de-scaling unit are separately connected；Wherein, first group of throwing is set in the first thick de-scaling unit
Ball machine, the first pellet recovery of circulatory system, first group of detection control apparatus and the first pellet flow valve, in the second thick de-scaling unit
Second group of shot-blasting machine, the second pellet recovery of circulatory system, second group of detection control apparatus and the second pellet flow valve, essence is arranged to remove
Setting third group shot-blasting machine, third pellet recovery of circulatory system, third group detection control apparatus and third pellet stream in squama unit
Measure valve；First pellet flow valve controls the pellet flow of first group of shot-blasting machine, the first pellet recovery of circulatory system and the first pellet
First group of detection control apparatus is arranged in the first thick de-scaling cell end in flow valve connection；Second pellet flow valve control second
The pellet flow of group shot-blasting machine, the second pellet recovery of circulatory system is connect with the second pellet flow valve, in the second thick de-scaling unit
Second group of detection control apparatus is arranged in end；Third pellet flow valve controls the pellet flow of third group shot-blasting machine, third pellet
Recovery of circulatory system is connect with third pellet flow valve, and third group detection control apparatus is arranged in smart de-scaling cell end.
Pellet partial size used in first thick de-scaling unit is 1mm, and impact velocity 50m/s, angle of attack is 70 °.
Pellet partial size used in second thick de-scaling unit is 0.6mm, and impact velocity 60m/s, angle of attack is 45 °
Pellet used in smart de-scaling unit is steel sand, and impact velocity 60m/s, angle of attack is 25 °.
First group of detection control apparatus detects the de-scaling rate of the belt steel surface, is completed according to detection data to the first pellet
The control of flow valve, and then change the de-scaling rate of the first thick de-scaling unit, realize closed-loop control；Second group of detection control
Device processed detects the de-scaling rate of the belt steel surface, completes the control to the second pellet flow valve, Jin Ergai according to detection data
Become the de-scaling rate of the described second thick de-scaling unit, realizes closed-loop control；The third group detection control apparatus detects belt steel surface
De-scaling rate, control to third pellet flow valve is completed according to detection data, and then change the de-scaling of the smart de-scaling unit
Rate realizes closed-loop control.
First thick de-scaling unit de-scaling rate is set as 70%, and the second thick de-scaling unit de-scaling rate is set as 90%, smart de-scaling
Unit de-scaling rate is set as 100%.
The above-mentioned technical proposal of the utility model has the beneficial effect that:
In above scheme, traditional descaling system is divided into three groups of units, this three groups of units according to squama layer removing rate not
Together, it is respectively provided with different running parameters, improves respective de-scaling ability, three groups of unit work compounds largely mention
High squama layer efficiency.The device anacidity consumption, low energy consumption, operational reliability and stability are good.
Detailed description of the invention
Fig. 1 is the strip descaling device structural schematic diagram based on impact of the utility model；
Fig. 2 is the single big pellet function and effect schematic diagram of the first thick descaling mill of the utility model；
Fig. 3 is the single steel sand function and effect schematic diagram of pickle line processor in the utility model.
Wherein: the thick de-scaling unit of 1- first；The thick de-scaling unit of 2- second；3- essence de-scaling unit；4- dust removing units；5- band
Steel；First group of shot-blasting machine of 6-；7- the first pellet recovery of circulatory system；The first detection control apparatus of 8-；9- the first pellet flow valve；
Second group of shot-blasting machine of 10-；11- the second pellet recovery of circulatory system；The second detection control apparatus of 12-；13- the second pellet flow
Valve；14- third group shot-blasting machine；15- third pellet recovery of circulatory system；16- third detection control apparatus；17- third pellet stream
Measure valve.
Specific embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
The utility model provides a kind of strip descaling device based on impact.
As shown in Figure 1, the device includes the first thick de-scaling unit 1, the second thick de-scaling unit 2, smart de-scaling unit 3 and removes
Dirt unit 4.First group of shot-blasting machine 6, the first pellet recovery of circulatory system 7, first group of detection control are equipped in first thick de-scaling unit 1
Device 8 processed and the first pellet flow valve 9.After strip 5 enters the first thick de-scaling unit 1, the ball blast partial size in first group of shot-blasting machine 6
It with the impact velocity of 50m/s under the thrust and centrifugal force acceleration of shot blast machine blade is 70 ° with 5 angle of strip for 1mm
Angle of attack strike strip 5.First group of monitor controller 8 detects the de-scaling rate on 5 surface of strip, when de-scaling rate is lower than setting
When value, increases pellet flow by adjusting the first pellet flow valve 9, de-scaling rate is made to reach preset value 70%.Strip 5 enters second
After thick de-scaling unit 2, the ball blast partial size in second group of shot-blasting machine 10 is 0.6mm, is added in the thrust and centrifugal force of shot blast machine blade
With the impact velocity of 60m/s under speed effect, the angle of attack for being 45 ° with 5 angle of strip strikes strip 5.Second group of monitoring control
Device 12 detects the de-scaling rate on 5 surface of strip, so that de-scaling rate is reached preset value 90% by adjusting the second pellet flow valve 13.Band
After steel 5 enters smart de-scaling unit 3, the steel sand in third group shot-blasting machine 14 accelerates to make in the thrust and centrifugal force of shot blast machine blade
With the impact velocity of 60m/s under, the angle of attack for being 25 ° with 5 angle of strip strikes strip 5.Steel sand angle of attack is small, in band
It is big that work area is contacted at steel, plays the role of removing remaining squama layer well.Third group monitor controller 16 detects band
The de-scaling rate on 5 surface of steel makes de-scaling rate reach preset value 100% by adjusting third pellet flow valve 17.
Three groups of de-scaling unit successively operations increase according to the difference of belt steel surface removing rate provided with different running parameters
Strong respective de-scaling ability, while effectively improving de-scaling ability, reduces system total energy consumption.
As shown in Fig. 2, the first thick de-scaling unit has been selected biggish angle of attack (70 °), biggish partial size (1mm) is removed
Squama ability is strong, has effectively achieved removal squama layer early period.
Second thick de-scaling unit has selected slightly biased small angle of attack (45 °), smaller partial size (0.6mm), de-scaling ability
By force, and the processing hardening of belt steel surface will not be caused, further removes de-scaling layer.
As shown in figure 3, smart de-scaling unit has selected volume smaller, more sharp steel sand, and angle of attack is minimum
(25 °), steel sand can slide relatively at a distance in belt steel surface, and the squama layer of belt steel surface remnants is effectively hit removal.
The optimal case that above embodiments are obtained using Q235 steel as steel grade type, if any other bands, embodiment with it is upper
It is similar to state scheme, can be measured by corresponding test data, chooses optimal compound allocation plan.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, under the premise of not departing from principle described in the utility model, several improvements and modifications can also be made, these improvement
It also should be regarded as the protection scope of the utility model with retouching.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821533676.7U CN208867003U (en) | 2018-09-19 | 2018-09-19 | A strip steel descaling device based on shot blasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821533676.7U CN208867003U (en) | 2018-09-19 | 2018-09-19 | A strip steel descaling device based on shot blasting |
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| Publication Number | Publication Date |
|---|---|
| CN208867003U true CN208867003U (en) | 2019-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821533676.7U Active CN208867003U (en) | 2018-09-19 | 2018-09-19 | A strip steel descaling device based on shot blasting |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834227A (en) * | 2019-11-04 | 2020-02-25 | 广东顺德泓涂机械有限公司 | Sanding and grinding process for wooden products |
| CN112743456A (en) * | 2020-11-27 | 2021-05-04 | 北京电子科技职业学院 | Acid-free descaling device for strip steel |
| CN112936109A (en) * | 2020-12-30 | 2021-06-11 | 东北大学无锡研究院 | Method for preparing metal coating steel plate by shot blasting descaling |
-
2018
- 2018-09-19 CN CN201821533676.7U patent/CN208867003U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834227A (en) * | 2019-11-04 | 2020-02-25 | 广东顺德泓涂机械有限公司 | Sanding and grinding process for wooden products |
| CN110834227B (en) * | 2019-11-04 | 2020-11-24 | 广东顺德泓涂机械有限公司 | Sanding and grinding process for wooden products |
| CN112743456A (en) * | 2020-11-27 | 2021-05-04 | 北京电子科技职业学院 | Acid-free descaling device for strip steel |
| CN112936109A (en) * | 2020-12-30 | 2021-06-11 | 东北大学无锡研究院 | Method for preparing metal coating steel plate by shot blasting descaling |
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