CN208912810U - A kind of continuous casting blank scale eliminating device - Google Patents
A kind of continuous casting blank scale eliminating device Download PDFInfo
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- CN208912810U CN208912810U CN201821609917.1U CN201821609917U CN208912810U CN 208912810 U CN208912810 U CN 208912810U CN 201821609917 U CN201821609917 U CN 201821609917U CN 208912810 U CN208912810 U CN 208912810U
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- sand
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- storage chamber
- casting blank
- eliminating device
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Abstract
The utility model provides a kind of continuous casting blank scale eliminating device, the descaling device includes: sandbox, nozzle, sandblasting pipeline, the sandbox is for storing sand grains, one end and nozzle are connected to each other by sandblasting pipeline, the other end connects admission line, the admission line is used for for conveying compressed air, the nozzle to casting billet surface Sand blasting descaling.The utility model solves the problems, such as the decline of billet surface high temperature caused by high-pressure water descaling, while can effectively remove continuous casting billet surface iron sheet, ensure that the surface quality of slab.
Description
Technical field
The utility model relates to metal rolled technical fields, and in particular to a kind of continuous casting blank scale eliminating device.
Background technique
Steel billet is oxidized at high operating temperatures, is formed on its surface one layer of fine and close iron scale (firecoat).Before the rolling
If cannot remove this layer of iron scale, they can be pressed into surface of steel plate, annealed aligning by roll during the rolling process
Finished surface forms convex-concave trace after falling off, and seriously affects product surface quality.Remaining iron scale can also accelerate roll
Abrasion, reduces the service life of roll.When needing pickling such as product, remaining iron scale will increase the difficulty of pickling, increase
Acid consumption.Therefore, before billet rolling, it is necessary to remove the iron scale on surface.Deoxidation is removed using the mechanical impact force of high pressure water
The method for changing iron sheet (high-pressure water descaling) is the current most current effective practice, but remaining water is soon during de-scaling
It will lead to stocking surface re-oxidation, while will cause the violent decline of casting blank surface temperature using high-pressure water descaling, connect simultaneously
Casting billet surface will form one layer of boiling film, to reduce the effect of high-pressure water descaling significantly.
Utility model content
The technical assignment of the utility model is to be directed to the above the deficiencies in the prior art, and provide a kind of continuous casting billet de-scaling dress
It sets, solves the problems, such as the decline of billet surface high temperature caused by high-pressure water descaling, while continuous casting billet table can be effectively removed
Face iron sheet ensure that the surface quality of slab.
The utility model provides a kind of continuous casting blank scale eliminating device, and the descaling device includes: sandbox, nozzle, blast tube
Road, the sandbox are connected to each other for storing sand grains, one end and nozzle by sandblasting pipeline, and the other end connects admission line,
The admission line is used for for conveying compressed air, the nozzle to casting billet surface Sand blasting descaling.
Further, the structure of the sandbox includes: sand storage chamber, interior conduit, pushing meanss, the connection of said inner tube road one end
Admission line, the other end are connected with sandblasting pipeline, which is disposed adjacent with sand storage chamber, the phase of the sand storage chamber and interior conduit
Cross surface is equipped with sand export, is equipped with pushing meanss inside the sand storage chamber, the pushing meanss by with the transmission outside sandbox
Equipment connection, realization move back and forth in sand storage chamber, and the sand storage chamber is equipped with far from the top of interior conduit side into Sha Men.
Further, the number of the sand storage chamber is one or more, when the number of sand storage chamber is more than one, sand storage chamber
Interior pushing meanss are the mode of ladder traveling, synchronous reset.
Further, the drive apparatus includes transmission shaft, driver and motor, described transmission shaft one end and pushing meanss
Connection, the other end connect motor, and the motor is connect with driver, and the driver is controlled by computer.
Further, slab tapping temperature control is at 1200~1300 DEG C, 2~3 meter per second of slab movement velocity；Institute
Nozzle distance 10~20cm of casting billet surface is stated, angle≤30 ° formed with slab；The pressure control of the compressed air 30~
50MPa。
Further, the diameter of the sand grains is the high temperature resistant sand grains of 0.5~1mm.
Further, slab production line two sides are equipped with sand and oxide skin recyclable device.
Pushing meanss are not limited to adopt and computerized control in the utility model, can also be using motor connection control cabinet
Scheme carries out manual control.
Compared with prior art, the advantages of the utility model are as follows:
(1) high speed injection sand grains can effectively remove continuous casting billet surface iron sheet, improve tandem rolling product surface quality and
Yield rate, while the production efficiency and yield rate improved, reduce production cost, have apparent economic benefit；
(2) do not use high pressure water, avoid stocking surface because of remaining water re-oxidation, prevent slab temperature substantially under
Drop prevents declining to a great extent for slab temperature, reduces the heating and thermal insulation time, reduces the loss and replacement frequency of roll；It produced
Mass energy and water resource have been saved while reducing waste product in journey；
(3) it effectively prevents because of the problem of ferrous oxide dissolves in iron scale, and causing the yield strength of steel reduces；
(4) for acid-cleaning plate, pickling difficulty can be reduced, reduces the consumption of acid, protects environment.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram of the utility model；
Fig. 2 is the utility model sandbox internal structure top view；
Fig. 3 is sandbox structure top view after the utility model pushing meanss reset.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.It should be appreciated that specific embodiment described herein is only to explain the utility model,
It is not used to limit the utility model.
The utility model provides a kind of continuous casting blank scale eliminating device and descaling method, and the sand grains for passing through high speed injection removes continuous casting
Base surface iron sheet, the descaling device are as shown in Figures 1 to 3, comprising: sandbox 1, nozzle 2, sandblasting pipeline 3, the sandbox is for depositing
It puts sand grains, one end and nozzle to be connected to each other by sandblasting pipeline, the other end connects admission line 3.1, and the admission line is used
In conveying compressed air, the nozzle is used for casting billet surface Sand blasting descaling.
Further, the structure of the sandbox includes: sand storage chamber 1.1, interior conduit 1.2, pushing meanss 1.4, said inner tube
Road one end connects admission line, and the other end is connected with sandblasting pipeline, which is disposed adjacent with sand storage chamber, the sand storage chamber and
The intersection of interior conduit is equipped with sand export 1.3, is equipped with pushing meanss inside the sand storage chamber, the pushing meanss by with sand
Outside case drive apparatus connection, moved back and forth in sand storage chamber, the sand storage chamber far from interior conduit side top be equipped with into
Sand door 8.
Further, the number of the sand storage chamber is one or more, when the number of sand storage chamber is more than one, sand storage chamber
Interior pushing meanss are the mode of ladder traveling, synchronous reset.
When pushing meanss are more than one, pushing meanss be ladder advance, can to avoid simultaneously advance when, sand grains is in sand
Case, interior conduit and outlet obstruction, while to avoid sand grains from flowing back, blasting treatment is influenced, all pushing meanss are run to sand export
Afterwards, it resets simultaneously, returns to starting point.
Further, the drive apparatus includes transmission shaft 10, driver 6 and motor 5, described transmission shaft one end and is pushed
Device connection, the other end connect motor, and the motor is connect with driver, and the driver is controlled by computer；
As another technical solution, motor also can connect control cabinet, and promotion dress is controlled by manual operation control cabinet
It sets.
Further, 7 tapping temperature of slab control is at 1200~1300 DEG C, 2~3 meter per second of slab movement velocity；Institute
Nozzle distance 10~20cm of casting billet surface is stated, angle≤30 ° formed with slab；The pressure control of the compressed air 30~
50Mpa, the compressed air can be provided by air compressor machine or high-pressure pump 4.
Further, the diameter of the sand grains is the high temperature resistant sand grains of 0.5~1mm.
Because high temperature casting billet surface is softer, sand grains diameter cannot be too small, should not also use other materials, otherwise will cause sand
Grain residual, or the phenomenon that squeeze into casting billet surface.
Further, slab production line two sides are equipped with sand and oxide skin recyclable device 9.
When using descaling device and descaling method Sand blasting descaling, according to specific production status, the control of driver can be passed through
Motor control parameters are arranged in software, can also be by the way of manual operation control cabinet, when being realized with this to pushing meanss operation
Between, the control of direction and state, to reach better scale removal effect.
In continuous casting and rolling production process, after continuous casting billet pulls out, surface forms iron scale rapid cooling, iron scale
Pattern cracking is presented, using device provided by the utility model to continuous casting billet surface high pressure injected sand；Casting billet surface is through high pressure
Injected sand impact, smashes iron scale in the dynamic pressure of crackle mesohigh sand grains, peels off iron scale from billet surface.
Although describing the utility model referring to exemplary embodiment, it will be understood by those skilled in the art that
In the case where not departing from the spirit and scope of the utility model, these embodiments can be carry out various modifications and be changed, this
The range of utility model is limited by claims and its equivalent.
Claims (7)
1. a kind of continuous casting blank scale eliminating device, which is characterized in that the descaling device includes: sandbox, nozzle, sandblasting pipeline, described
Sandbox is connected to each other for storing sand grains, one end and nozzle by sandblasting pipeline, and the other end connects admission line, the air inlet
Pipeline is used for for conveying compressed air, the nozzle to casting billet surface Sand blasting descaling.
2. a kind of continuous casting blank scale eliminating device according to claim 1, which is characterized in that the structure of the sandbox includes: storage
Sand room, interior conduit, pushing meanss, said inner tube road one end connect admission line, and the other end is connected with sandblasting pipeline, the interior conduit
It is disposed adjacent with sand storage chamber, the intersection of the sand storage chamber and interior conduit is equipped with sand export, is equipped with and pushes away inside the sand storage chamber
Dynamic device, the pushing meanss with the drive apparatus outside sandbox by connecting, and realization moves back and forth in sand storage chamber, the storage
Sand room is equipped with far from the top of interior conduit side into Sha Men.
3. a kind of continuous casting blank scale eliminating device according to claim 2, which is characterized in that the number of the sand storage chamber is one
Or more, when the number of sand storage chamber is more than one, the pushing meanss in sand storage chamber are the mode of ladder traveling, synchronous reset.
4. a kind of continuous casting blank scale eliminating device according to claim 2, which is characterized in that the drive apparatus includes transmission
Axis, driver and motor, described transmission shaft one end are connect with pushing meanss, and the other end connects motor, the motor and driver
Connection, the driver are controlled by computer.
5. a kind of continuous casting blank scale eliminating device according to claim 1, which is characterized in that the slab tapping temperature control exists
1200~1300 DEG C, 2~3 meter per second of slab movement velocity；10~20cm of the nozzle distance casting billet surface is formed with slab
Angle≤30 °；The pressure of the compressed air is controlled in 30~50MPa.
6. a kind of continuous casting blank scale eliminating device according to claim 1, which is characterized in that the diameter of the sand grains be 0.5~
The high temperature resistant sand grains of 1mm.
7. a kind of continuous casting blank scale eliminating device according to claim 1, which is characterized in that slab production line two sides be equipped with sand and
Oxide skin recyclable device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821609917.1U CN208912810U (en) | 2018-09-30 | 2018-09-30 | A kind of continuous casting blank scale eliminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821609917.1U CN208912810U (en) | 2018-09-30 | 2018-09-30 | A kind of continuous casting blank scale eliminating device |
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| Publication Number | Publication Date |
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| CN208912810U true CN208912810U (en) | 2019-05-31 |
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| CN201821609917.1U Active CN208912810U (en) | 2018-09-30 | 2018-09-30 | A kind of continuous casting blank scale eliminating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174984A (en) * | 2018-09-30 | 2019-01-11 | 本钢板材股份有限公司 | A kind of continuous casting blank scale eliminating device and descaling method |
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2018
- 2018-09-30 CN CN201821609917.1U patent/CN208912810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174984A (en) * | 2018-09-30 | 2019-01-11 | 本钢板材股份有限公司 | A kind of continuous casting blank scale eliminating device and descaling method |
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