CN112916629A - Planetary roller type plate belt scale breaking device - Google Patents
Planetary roller type plate belt scale breaking device Download PDFInfo
- Publication number
- CN112916629A CN112916629A CN202110228228.6A CN202110228228A CN112916629A CN 112916629 A CN112916629 A CN 112916629A CN 202110228228 A CN202110228228 A CN 202110228228A CN 112916629 A CN112916629 A CN 112916629A
- Authority
- CN
- China
- Prior art keywords
- roller
- tension roller
- tension
- cleaning
- planetary
- 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.)
- Pending
Links
Images
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
- B21B45/04—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 de-scaling, e.g. by brushing
- B21B45/06—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 de-scaling, e.g. by brushing of strip material
-
- 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
Abstract
The invention relates to the field of production of metal strips, in particular to a planetary roller type strip scale breaking device which is characterized by comprising a rack, a base, a first tension roller, a second tension roller and a cleaning roller, wherein the first tension roller and the second tension roller are arranged in the rack in parallel, the first tension roller and the second tension roller are respectively connected with a tension roller motor through a tension roller speed reducer, and the metal strips form a zigzag path along the surfaces of the first tension roller and the second tension roller; the cleaning roller is in the planet form distribution in the cornerite segmental arc outside of tension roller one and/or tension roller two, be connected through the bearing frame between the both ends of cleaning roller and the frame, be connected through screw rod adjustment mechanism between bearing frame and the frame, the one end of cleaning roller is connected with shaft coupling, speed reducer and cleaning roller motor in proper order. The invention has the advantages that: 1) applying a combination of tensile, compressive and shearing stresses on the surface oxide layer of the metal plate strip to effectively remove the surface oxide layer of the metal plate strip; 2) reduce the discharge of waste liquid and reduce pollution.
Description
Technical Field
The invention relates to the field of production of metal plate strips, in particular to a planetary roller type plate strip scale breaking device.
Background
The technology of descaling the surface of the metal plate strip (namely removing the surface oxide layer) is an indispensable process before finish machining, and the quality of surface cleaning can directly influence the surface quality of metal and the surface quality of subsequent machined products. The traditional surface treatment of the metal plate strip is mainly acid pickling, but the acid pickling process inevitably causes certain pollution to the environment, and in order to adapt to the global environment and the sustainable development problem, the metal manufacturing industry adopts a more environment-friendly green production process. The greening is a great trend of metal industrial production in the future, so that a device which can eliminate or reduce acid emission, replace chemical pickling by a physical mode or partially replace chemical pickling and improve the surface quality of metal strips in a more economic mode is required to be provided so as to meet the development requirements of modern industry with high automation degree, high rust removal speed and uniform surface treatment.
In the research of acid-free descaling technology at home and abroad at present, the descaling methods commonly used in the hot rolling process comprise a water jet descaling technology, a withdrawal and straightening machine descaling technology, a shot blasting machine descaling technology, an abrasive water jet descaling technology, a plasma descaling technology, a laser descaling technology and the like. The water jet descaling technology is characterized in that water is pressurized by a high-pressure pump and sprayed to the surface of a plate strip through a pipeline and a nozzle, and the water jet descaling technology has the advantages of being green and pollution-free, and has the defects of small treatment area of a single nozzle, low treatment speed, high required pressure level and high energy consumption; the descaling technology of the withdrawal straightening machine is to make the surface of the metal plate strip receive repeated tension and compression stress through withdrawal straightening of the straightening roller, and make the surface scale layer break or even fall off by utilizing the difference of the plasticity of the metal oxide layer and the matrix metal. However, the method has poor descaling effect and uneven surface treatment, and can only be used as a pretreatment process for descaling; the shot blasting machine descaling technology is that the thrust and the centrifugal force of the impeller head blades are used for driving shot blasting, and the metal surface is hit to damage an oxide layer. The method has the advantages of obvious treatment capacity and effect, high energy consumption, obvious metal deformation in the treatment process and great dust pollution. The abrasive water jet descaling technology is an improvement on the water jet descaling process, and mixed slurry of water and abrasive is sprayed to the surface of metal at high speed to remove an oxide layer on the surface. The advantages are green, no pollution, obvious descaling effect, small treatment area of single nozzle, low treatment speed and short service life of the nozzle.
The invention provides an acid-free descaling system and a descaling method for a cold-rolled strip, which are disclosed by the Chinese invention patent with the application number of 201610073660.1, wherein the system and the method are characterized in that a surface oxide layer of the cold-rolled strip is subjected to tension cracking, striking and water jet descaling through the cooperative work of three groups of units, namely tension straightening, shot blasting and water jet. The method has the advantages that acid washing is not used, water and shot blasting can be recycled, a large amount of water resources can be saved, the temperature of the steel plate is required before the steel plate is quenched and cooled, and the oxidation layer is removed by adopting a large amount of high-pressure water injection mode, so that the temperature of the steel plate is greatly influenced, and the subsequent quenching quality is further influenced.
The invention discloses a device for removing a quenching oxidation layer of an extra-thick steel plate, which is provided by the Chinese patent with the application number of 201710478245.9. The oxide layer on the surface of the steel plate can be crushed by utilizing the pressure of the working roller to enable the oxide layer to fall off, the falling oxide layer is blown off by the blowing mechanism, the effect of effectively removing the oxide layer is achieved, a large amount of high-pressure water injection is not needed, the temperature influence on the steel plate is small, and the subsequent quenching quality is further improved. But the device is suitable for super-thick steel plates. The oxide layer on the surface of the common plate strip cannot be crushed.
At present, the descaling device applicable to the metal plate strip with the thickness within the range of 0.5-10 mm is urgently needed, the surface of the metal plate strip can be efficiently dephosphorized in the rolling process of the plate strip, an oxidation layer is removed, the using amount of acid is reduced, and the green and environment-friendly call is responded.
Disclosure of Invention
The invention aims to provide a planetary roller type plate strip descaling device, which overcomes the defects of the prior art, and achieves the purpose of green production on the premise of reducing the acid consumption of pickling by additionally arranging planetary cleaning rollers on the roller surface of a tension roller in the prior rolling production line, wherein the cleaning rollers are pressed on a metal plate strip on the surface of the tension roller, the cleaning rollers generate speed difference in the transverse direction and the longitudinal direction relative to the metal plate strip, a plurality of planetary cleaning rollers generate acting force combined by shearing stress, compressive stress and tensile stress on the metal plate strip, and an oxide layer on the surface falls off.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a planetary roller type plate belt scale breaking device is characterized by comprising a rack, a base, a first tension roller, a second tension roller and a cleaning roller, wherein the first tension roller and the second tension roller are arranged in the rack in parallel, the first tension roller and the second tension roller are respectively connected with a tension roller motor through a tension roller speed reducer, and a metal plate belt forms a zigzag path along the surfaces of the first tension roller and the second tension roller; the cleaning roller is in the planet form distribution in the cornerite segmental arc outside of tension roller one and/or tension roller two, be connected through the bearing frame between the both ends of cleaning roller and the frame, be connected through screw rod adjustment mechanism between bearing frame and the frame, the one end of cleaning roller is connected with shaft coupling, speed reducer and cleaning roller motor in proper order.
Furthermore, the number of the cleaning rollers arranged on the periphery of the first tension roller and/or the second tension roller is 1-10.
Further, the cleaning roller is any one of a rubber roller, a nylon brush roller or a steel brush roller.
Further, the linear speed range of the first tension roller and the second tension roller is 1-300 m/min, and the surface linear speed difference between the cleaning roller and the surface of the metal steel strip ranges from +/-1% to +/-2000%; when the surface scale thickness is more than or equal to 0.2mm, the linear velocity difference is kept within +/-1 to +/-200 percent; when the surface scale thickness is less than 0.2mm, the linear velocity difference is within +/-201 to +/-2000 percent.
Furthermore, a transverse sliding way is arranged between the bottom of the rack and the base, one side of the rack is connected with the piston end of a transverse hydraulic cylinder, and when the transverse hydraulic cylinder moves back and forth, the cleaning roller can move perpendicular to the moving direction of the metal plate strip.
Furthermore, the rotating speed and the rotating direction of the cleaning roller and the pressure on the metal plate strip are adjustable.
Furthermore, the wrap angles of the metal plate strips on the first tension roller and the second tension roller are both larger than 180 degrees.
Further, an air blowing pipe is arranged above the metal plate strip at the process downstream of the cleaning roller, nozzles which are linearly arranged are arranged on the air blowing pipe, and one end of the air blowing pipe is connected with an air outlet of an air compressor.
A rolling production line is characterized in that 1-6 groups of planetary roller type plate strip scale breaking devices according to any one of claims 1-8 are arranged on the production line, and the arrangement directions of tension rollers in adjacent planetary roller type plate strip scale breaking devices are in a symmetrical relation so as to adapt to the trend of metal plate strips.
Compared with the prior art, the invention has the following beneficial effects: 1) according to the invention, the metal plate strip before pickling is physically descaled by the planetary roller type plate strip descaler, and a stress combination of pulling, pressing and shearing can be applied to the surface oxide layer of the plate strip, so that the surface oxide layer of the plate strip can be effectively removed; 2) the direct economic benefits produced include a 30% reduction in acid consumption and a reduction in production costs; the generated social benefits such as reduction of waste liquid discharge and reduction of environmental pollution make great contribution to development of green environmental protection, energy conservation and emission reduction of enterprises.
Drawings
Fig. 1 is a schematic view of a state of use of an embodiment of the present invention, which is an application of a planetary roller type strip scale breaking device in a rolling production line.
FIG. 2 is a schematic structural diagram of an embodiment of the present invention, which shows a schematic star-shaped distribution of the cleaning roller on the first tension roller or the second tension roller.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is a schematic view of the working principle in the embodiment of the present invention, and a schematic view of the force applied to the microscopic scale.
FIG. 5 is a schematic view of an embodiment of the present invention.
Fig. 6 is a schematic diagram of a second use state of the embodiment of the invention, which shows the application of two sets of planetary roller type plate strip scale breaking devices in a rolling production line.
In the figure: 1-metal plate strip; 2-a tension roller; 3-bearing seat; 4-a compression screw; 5-a tension roller motor; 6-a tension roller reducer; 7-a transverse hydraulic cylinder and 8-a cleaning roller motor; 9-a speed reducer; 10-a coupler; 11-a frame; 12-a tension roll bearing block; 13-a cleaning roller; 14-a traversing slide; 15: a pull rod; 16-a nut; 17-a scale breaking device; 18-a withdrawal and straightening machine; 19-a base; 20-a pickling tank; 21-a coiler; 22-a tension roller I; 23-tension roller II; 24-air blowing pipe; 25-an uncoiler; 26-iron scale layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, which are schematic structural views of an embodiment of a planetary roller type plate strip scale breaking device, the planetary roller type plate strip scale breaking device comprises a rack 11, a base 19, a first tension roller 22, a second tension roller 23 and a cleaning roller 13, wherein the first tension roller 22 and the second tension roller 23 are arranged in the rack 11 in parallel, the first tension roller 22 and the second tension roller 23 are respectively connected with a tension roller motor 5 through a tension roller reducer 6, and a metal plate 1 strip forms a zigzag path along the surfaces of the first tension roller 22 and the second tension roller 23; the cleaning roller 13 is distributed in a planetary shape on the outer sides of the wrap angle arc sections of the first tension roller 22 and the second tension roller 23, two ends of the cleaning roller 13 are connected with the rack 11 through the bearing seat 3, the bearing seat 3 is connected with the rack 11 through the compression screw rod 4, and one end of the cleaning roller 13 is sequentially connected with the coupler 10, the speed reducer 9 and the cleaning roller motor 8. The lifting adjustment of the cleaning roller 13 can be realized by adjusting the compression screw rod 4, so that the pressure of the cleaning roller on the metal plate strip can be adjusted.
In the embodiment, the number of cleaning rollers 13 arranged on the periphery of the tension roller 2 is 6. The cleaning roller 13 is any one of a rubber roller, a nylon brush roller, or a steel brush roller, and is used for brushing or rubbing off scale (oxide layer) on the surface of the metal plate strip. 6 cleaning rollers are in a group, can completely participate in work, and can also be partially used as a substitute, so that the replacement is convenient.
The linear speed range of the first tension roller 22 and the second tension roller 23 is 1-300 m/min, the rotating speed and the direction of the cleaning roller 13 are adjustable, and the wrap angles of the metal plate strip 1 on the first tension roller 22 and the second tension roller 23 are larger than 180 degrees. The surface linear velocity difference between the cleaning roller 13 and the surface of the metal steel strip ranges from +/-1% to +/-2000%. When the surface scale thickness is more than or equal to 0.2mm, the linear velocity difference is kept within +/-1 to +/-200 percent, the shearing force is large, and the scale is easier to be removed by a rubbing mode; when the surface scale thickness is less than 0.2mm, the linear velocity difference is within +/-201 to +/-2000 percent, the shearing force is small, and the scale can be removed more easily by a 'wiping' mode.
A transverse sliding rail 14 is arranged between the bottom of the frame 11 and a base 19, one side of the frame 11 is connected with the piston end of a transverse hydraulic cylinder 7, and when the transverse hydraulic cylinder 7 moves back and forth, the cleaning roller 13 can move perpendicular to the moving direction of the metal plate strip 1.
In order to achieve a better cleaning effect, an air blowing pipe 24 is arranged above the metal plate strip at the process downstream of the cleaning roller 13, the air blowing pipe 24 is provided with nozzles which are linearly arranged, one end of the air blowing pipe is connected with an air outlet of an air compressor, and the pressure of the compressed air is not less than 6 atmospheric pressures. The compressed air can ensure that the falling oxide layer fragments can not be pressed into the surface of the metal plate strip for the second time, and the descaling effect of the metal plate strip is improved.
The metal plate strip 1 is uncoiled by an uncoiler 25, enters a scale breaking device 17 after tension is established by a withdrawal and straightening machine 18, a plurality of cleaning rollers 13 are arranged on the roller surfaces of a first tension roller 22 and a second tension roller 23, and the cleaning rollers generate elastic pressure deformation on the metal plate strip. In the elastic deformation zone, due to the friction shear stress generated by the speed difference and the triple combined action of the bending stress, the tensile compressive stress and the tensile stress of the metal plate strip, an oxide layer (iron scale) on the surface of the plate strip is accelerated to fall off on the basis of the tension-leveling cracks.
Under the support of a first tension roller 22 and a second tension roller 23, a cleaning roller 13 applies a larger pressure 500N-20000N to the metal plate strip 1, the cleaning roller contacts the metal plate strip to generate forward slip and backward slip in a deformation area of the cleaning roller, or the linear velocity difference between the cleaning roller and the metal plate strip is utilized, as shown in figure 4, the cleaning roller and the surface of the metal plate strip are subjected to friction, an oxide layer on the surface of the metal plate strip is subjected to bending and stretching while the effect of friction shearing stress is superposed, and the V is caused by the action of the V1>V2The area A is expanded by tensile force, and the area C is contracted by extrusion force, so that the falling rate of the oxide layer under the action of multidirectional stress is improved.
Referring to fig. 6, in the case that 2 groups of scale breaking devices 17 are arranged on the rolling production line, the arrangement directions of the tension rollers in the adjacent planetary roller type plate strip scale breaking devices are in a symmetrical relationship so as to adapt to the trend of the metal plate strip, and the cleaning effect of the arrangement of the multiple groups of scale breaking devices 17 is certainly better than that of the arrangement of one group.
The above embodiments are merely specific examples selected for illustrating the objects, technical solutions and advantages of the present invention in detail, and should not be construed as limiting the scope of the present invention, and various modifications, equivalent substitutions and improvements can be made without departing from the spirit and principle of the present invention.
Claims (9)
1. A planetary roller type plate belt scale breaking device is characterized by comprising a rack, a base, a first tension roller, a second tension roller and a cleaning roller, wherein the first tension roller and the second tension roller are arranged in the rack in parallel, the first tension roller and the second tension roller are respectively connected with a tension roller motor through a tension roller speed reducer, and a metal plate belt forms a zigzag path along the surfaces of the first tension roller and the second tension roller; the cleaning roller is in the planet form distribution in the cornerite segmental arc outside of tension roller one and/or tension roller two, be connected through the bearing frame between the both ends of cleaning roller and the frame, be connected through screw rod adjustment mechanism between bearing frame and the frame, the one end of cleaning roller is connected with shaft coupling, speed reducer and cleaning roller motor in proper order.
2. A planetary roller type plate strip scale breaking device according to claim 1, wherein the number of cleaning rollers arranged on the periphery of the first tension roller and/or the second tension roller is 1-10.
3. A planetary roller plate belt scale breaking device according to claim 1, wherein the cleaning roller is any one of a rubber roller, a nylon brush roller or a steel brush roller.
4. The planetary roller type plate belt scale breaking device according to claim 1, wherein the linear speed range of the first tension roller and the second tension roller is 1-300 m/min, and the surface linear speed difference between the cleaning roller and the surface of the metal steel belt is +/-1% -2000%; when the surface scale thickness is more than or equal to 0.2mm, the linear velocity difference is kept within +/-1 to +/-200 percent; when the surface scale thickness is less than 0.2mm, the linear velocity difference is within +/-201 to +/-2000 percent.
5. A planetary roller strip descaling device according to claim 1, wherein a traverse slide is provided between the bottom of the frame and the base, one side of the frame is connected to the piston end of a traverse hydraulic cylinder, and the cleaning roller is movable perpendicular to the moving direction of the metal strip when the traverse hydraulic cylinder moves back and forth.
6. A planetary roller strip scale breaking apparatus as claimed in claim 1 wherein the speed and direction of rotation of the cleaning rollers and the pressure on the strip are adjustable.
7. The planetary roller type plate strip scale breaking device according to claim 1, wherein the wrap angles of the metal plate strips on the first tension roller and the second tension roller are both larger than 180 degrees.
8. A planetary roller type plate strip scale breaking device according to claim 1, wherein an air blowing pipe is arranged above the metal plate strip downstream of the cleaning roller process, the air blowing pipe is provided with nozzles which are linearly arranged, and one end of the air blowing pipe is connected with an air outlet of an air compressor.
9. A rolling production line is characterized in that 1-6 groups of planetary roller type plate strip scale breaking devices according to any one of claims 1-8 are arranged on the production line, and the arrangement directions of tension rollers in adjacent planetary roller type plate strip scale breaking devices are in a symmetrical relation so as to adapt to the trend of metal plate strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110228228.6A CN112916629A (en) | 2021-03-02 | 2021-03-02 | Planetary roller type plate belt scale breaking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110228228.6A CN112916629A (en) | 2021-03-02 | 2021-03-02 | Planetary roller type plate belt scale breaking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112916629A true CN112916629A (en) | 2021-06-08 |
Family
ID=76172876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110228228.6A Pending CN112916629A (en) | 2021-03-02 | 2021-03-02 | Planetary roller type plate belt scale breaking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112916629A (en) |
-
2021
- 2021-03-02 CN CN202110228228.6A patent/CN112916629A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102744277B (en) | Method for producing cold-rolled stainless steel annealing and pickling brand steel | |
| CN100455370C (en) | Leveling machine, black strip acid-free derusting device using the same and method thereof | |
| KR101053414B1 (en) | Descaling method and removal equipment of hot rolled steel strip | |
| CN101633111A (en) | Method and device for surface processing of steel belt | |
| CN201249351Y (en) | Steel band surface processing device | |
| CN202462234U (en) | Production equipment for mechanical descaling of steel belt | |
| US9604268B2 (en) | Cold state metal plate strip surface treatment system and treatment method of the same | |
| CN101456148A (en) | Steel plate or strip steel surface no-pollution treatment method and device | |
| CN102451844A (en) | Mechanical descaling method and device for cold-state band steel | |
| CN102452032A (en) | Mechanical descaling method | |
| CN215314746U (en) | Planetary roller type plate strip scale breaking device and rolling production line comprising same | |
| US10888907B2 (en) | Mixed jet descaling device axially and eccentrically arranged for inner wall of pipe | |
| CN102451843A (en) | Metal plate belt processing method | |
| CN101138837A (en) | Cold-rolled steel strip acid-free descaling technique and special device thereof | |
| CN112916629A (en) | Planetary roller type plate belt scale breaking device | |
| CN211990314U (en) | A peeling device for welding wire rod | |
| CN202985356U (en) | Cleaning gun for inner wall of steel pipe | |
| CN210816750U (en) | Equipment for cleaning oxide layer on surface of hot rolled steel plate | |
| CN103029010B (en) | A kind of compact production technology of metal plate and belt is arranged | |
| CN201175863Y (en) | Strong shelling ring wire brush disk steel belt descaler | |
| CN103272841B (en) | Cold rolling technology of stainless steel clad plate strip coil | |
| CN113145670B (en) | Metal plate belt grinding descaling system | |
| CN202516862U (en) | Equipment for carrying out mechanical descaling on steel strip | |
| CN203245740U (en) | Jetting type dephosphorizing device for metal surface | |
| CN103785696B (en) | A kind of steel surface mechanical type cleaning method and equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |