CN111482472A - Strip steel cleaning device, strip steel descaling equipment and strip steel descaling method - Google Patents
Strip steel cleaning device, strip steel descaling equipment and strip steel descaling method Download PDFInfo
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- CN111482472A CN111482472A CN202010406973.0A CN202010406973A CN111482472A CN 111482472 A CN111482472 A CN 111482472A CN 202010406973 A CN202010406973 A CN 202010406973A CN 111482472 A CN111482472 A CN 111482472A
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- strip
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 237
- 239000010959 steel Substances 0.000 title claims abstract description 237
- 238000004140 cleaning Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 120
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 86
- 238000005507 spraying Methods 0.000 claims description 72
- 239000007921 spray Substances 0.000 claims description 25
- 239000004576 sand Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 230000001680 brushing effect Effects 0.000 claims description 18
- 238000005201 scrubbing Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 238000001035 drying Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—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
- B21B45/08—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 hydraulically
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention provides a strip steel cleaning device, strip steel descaling equipment and a strip steel descaling method, wherein the strip steel cleaning device comprises: the box body is provided with a strip steel feeding hole and a strip steel discharging hole, and the strip steel enters the box body in a feeding direction along the strip steel feeding hole to point to the strip steel discharging hole; the brush roll mechanism comprises a brush roll driving mechanism, an upper brush roll and a lower brush roll which are oppositely arranged, strip steel can pass through the upper brush roll and the lower brush roll, and the brush roll driving mechanism is used for driving the upper brush roll and the lower brush roll to rotate. By the method and the device, the technical problem that the strip steel after the descaling step is easy to be unclean in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of rolled strip steel, in particular to a strip steel cleaning device, strip steel descaling equipment and a strip steel descaling method.
Background
Hot rolling of steel strip typically includes a descaling step to remove scale from the surface of the strip and to obtain a clean and uniform surface of the strip. The descaling step mainly comprises two technologies: one is surface pickling of the strip steel; the other is an environment-friendly strip steel descaling technology, and the process is different from the traditional pickling technology in that the mixture of water and super-hard fine steel grit is adopted to spray the upper and lower surfaces of a coiled steel plate, and oxides or iron scales on the surface of the steel plate are removed under the action of a certain spraying force, which is called descaling.
The cleaning after the strip steel descaling step is a key process, the strip steel with a certain speed is pulled out of the descaling device, and is cleaned by the cleaning device to remove steel grit and dirt adhered to the surface of the strip steel, and water on the surface of the strip steel is dried. The unclean surface cleaning not only blackens the surface of the strip steel and influences the appearance; the influence on the next rolling process is great, steel grit iron powder on the surface of the strip steel can be bonded on the roller, so that the roller accumulates, the service life of the roller is prolonged, and the accumulated lumps on the roller body can be pressed into the rolled strip steel, so that the quality of a rolled finished product is influenced.
The surface of the strip steel is usually cleaned by high-pressure water, and the high-pressure water is sprayed to the surface of the strip steel by a high-pressure water pump, so that the steel sand and dirt on the surface of the strip steel are cleaned by the pressure of the water. However, after the strip steel adopting the environment-friendly descaling technology is cleaned by the cleaning method in the prior art, steel grit particles still easily remain on the surface of the strip steel, so that the cleaning is not clean.
Disclosure of Invention
The invention aims to provide a strip steel cleaning device, strip steel descaling equipment and a strip steel descaling method, which are used for solving the technical problem that strip steel after a descaling step is easy to be unclean in the prior art.
The above object of the present invention can be achieved by the following technical solutions:
the invention provides a strip steel cleaning device, comprising: the box body is provided with a strip steel feeding hole and a strip steel discharging hole, and the strip steel enters the box body in a feeding direction pointing to the strip steel discharging hole along the strip steel feeding hole; the brush roll mechanism is arranged in the box body and comprises a brush roll driving mechanism, an upper brush roll and a lower brush roll which are oppositely arranged, strip steel can pass through the space between the upper brush roll and the lower brush roll, and the brush roll driving mechanism is used for driving the upper brush roll and the lower brush roll to rotate.
In a preferred embodiment, the strip steel cleaning device comprises at least one set of first liquid spraying mechanisms arranged in a box body, and the first liquid spraying mechanisms comprise first upper liquid spraying pipes used for spraying liquid to the bristles of the upper brush roller and first lower liquid spraying pipes used for spraying liquid to the bristles of the lower brush roller.
In a preferred embodiment, the injection direction of the first upper liquid ejecting tube is inclined from top to bottom in the opposite direction of the feeding direction, and the injection direction of the first lower liquid ejecting tube is inclined from bottom to top in the opposite direction of the feeding direction.
In a preferred embodiment, the strip cleaning device comprises at least one set of second liquid spraying mechanisms arranged in the box body, and the second liquid spraying mechanisms are used for spraying liquid towards the strip.
In a preferred embodiment, the liquid ejecting direction of the second liquid ejecting mechanism is perpendicular to the feeding direction.
In a preferred embodiment, at least one group of the brush roller mechanisms comprises a first brush roller mechanism and a second brush roller mechanism which are sequentially distributed along the feeding direction; at least one set of the first liquid spraying mechanisms includes the first liquid spraying mechanism that sprays liquid to the first brush roller mechanism and the first liquid spraying mechanism that sprays liquid to the second brush roller mechanism.
In a preferred embodiment, the brush roller mechanism includes a first air cylinder connected to the upper brush roller for driving the upper brush roller to move in an up-and-down direction.
In a preferred embodiment, the brush roller mechanism comprises a lifting mechanism connected to the upper brush roller for adjusting the distance of the upper brush roller from the lower brush roller.
In a preferred embodiment, the brush roller mechanism includes an upper brush bar contacting an outer circumferential surface of the upper brush roller and a lower brush bar contacting an outer circumferential surface of the lower brush roller.
In a preferred embodiment, the upper sand brushing rod is positioned on one side of the upper brush roll close to the strip steel feed inlet and is positioned above the axis of the upper brush roll; the brush roll mechanism comprises a collecting tank, and the collecting tank is arranged above the upper sand brushing rod.
In a preferred embodiment, the strip steel cleaning device comprises a scrubbing brush which is used for contacting with the upper surface of the strip steel, and the scrubbing brush is arranged on one side of the first liquid spraying mechanism, which is close to the strip steel discharge port; the scrubbing brush is provided with at least one group of brush hair groups used for contacting with the upper surface of the strip steel, and the brush hair in the brush hair groups are arranged along the width direction of the upper surface of the strip steel from the center to the outer side along the inclined path of the feeding direction.
In a preferred embodiment, the strip steel cleaning device comprises a second air cylinder connected with the scrubbing brush, and the second air cylinder is used for driving the scrubbing brush to move up and down.
In a preferred embodiment, the strip steel cleaning device comprises a wringing roller mechanism, the wringing roller mechanism comprises an upper wringing roller, a lower wringing roller and a wringing driving mechanism connected with the lower wringing roller, the upper wringing roller and the lower wringing roller are arranged oppositely, and the strip steel can pass through the upper wringing roller and the lower wringing roller along a feeding direction; the squeezing driving mechanism is used for driving the lower squeezing roller to rotate.
In a preferred embodiment, a third air cylinder is connected to the upper drying roller and is used for driving the upper drying roller to move up and down.
In a preferred embodiment, a plurality of carrier rollers and a plurality of guide plates are arranged in the box body and used for supporting the strip steel, the carrier rollers are distributed at intervals along the feeding direction, and the guide plates are distributed at intervals along the feeding direction.
The invention provides a strip steel descaling device, which comprises:
a descaling device for spraying a mixture containing water and steel grit to the surface of the steel strip;
in the strip steel cleaning device, the strip steel feed inlet of the strip steel cleaning device is connected with the discharge outlet of the descaling device.
The invention provides a strip steel descaling method, which comprises the following steps:
a descaling step of spraying a mixture containing water and steel grit to the surface of the strip steel;
and a cleaning step, wherein the strip steel is cleaned by adopting the strip steel cleaning device.
The invention has the characteristics and advantages that:
and the strip steel after the descaling step enters a box body of the strip steel cleaning device from a strip steel feed inlet and passes through the space between the upper brush roll and the lower brush roll. The upper brush roll and the lower brush roll are driven by the brush roll driving mechanism to rotate, and the moving direction of the contact part of the upper brush roll and the strip steel is kept opposite to the moving direction of the strip steel; the moving direction of the contact part of the lower brush roll and the strip steel is kept opposite to the moving direction of the strip steel, the bristles of the upper brush roll and the bristles of the lower brush roll can generate a strong cleaning effect on the strip steel, and can respectively clean out impurity particles such as steel sand embedded into the surface of the strip steel, so that the cleaning effect is improved, and the technical problem that the strip steel after the descaling step in the prior art is easy to be cleaned unclean is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a front view of a strip cleaning apparatus according to the present invention;
FIG. 2 is a plan view of the strip cleaning apparatus shown in FIG. 1;
FIG. 3 is a schematic view showing a brush roll mechanism in the strip steel cleaning apparatus shown in FIG. 1;
FIG. 4 is an enlarged view of a portion of a scrubber in the strip cleaning apparatus shown in FIG. 2;
FIG. 5 is an enlarged view of a portion of a scrubber in the strip cleaning apparatus shown in FIG. 1;
FIG. 6 is a schematic diagram of a strip steel descaling method according to the present invention.
The reference numbers illustrate:
100. a box body; 11. a strip steel feed inlet; 12. a strip steel discharge port; 13. the direction of feed;
200. a brush roll mechanism; 201. a first brush roller mechanism; 202. a second brush roller mechanism;
21. an upper brush roll; 211. brushing a sand rod; 2111. a connecting rod; 212. collecting tank;
22. a lower brush roll; 221. brushing a sand rod;
23. a brush roll drive mechanism; 231. a brush roll motor; 24. a first cylinder; 25. a lifting mechanism; 251. a screw elevator; 26. a synchronizing shaft;
300. a first liquid spraying mechanism; 31. a first upper spray pipe; 32. a first lower spray pipe;
400. a second liquid spraying mechanism; 41. a second upper spray pipe; 42. a second lower spray pipe;
500. scrubbing and brushing; 51. a bristle group; 52. a second cylinder;
600. a wringing roller mechanism; 61. an upper wringing roller; 62. a lower wringing roller; 63. a wringing drive mechanism; 64. a third cylinder;
71. a carrier roller; 72. a guide plate.
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 embodiments of the present invention, 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.
Example one
The inventor researches a steel strip descaled by a steel grit spraying mode, and finds that: during descaling, after steel grit is stripped of iron scale of the strip steel, some tiny steel grit is inlaid on the surface of the strip steel. The high-pressure water pressure is very high, most of surface steel grit and dirt can be removed, but the jet force is very high when the steel grit is used for removing the oxide on the surface of the strip steel during descaling, a plurality of tiny particles are embedded into the surface of the strip steel, and the particles are difficult to clean out by washing water flow.
To this end, the present invention provides a strip steel cleaning apparatus, as shown in fig. 1 to 2, comprising: the strip steel feeding device comprises a box body 100, a strip steel feeding port 11 and a strip steel discharging port 12, wherein a strip steel feeding direction 13 of strip steel entering the box body 100 points to the strip steel discharging port 12 along the strip steel feeding port 11; the brush roll mechanism 200 comprises a brush roll driving mechanism 23, an upper brush roll 21 and a lower brush roll 22 which are oppositely arranged, strip steel can pass through the space between the upper brush roll 21 and the lower brush roll 22, and the brush roll driving mechanism 23 is used for driving the upper brush roll 21 and the lower brush roll 22 to rotate.
The strip steel after the descaling step enters the box 100 through the strip steel feed opening 11 and passes through between the upper brush rolls 21 and the lower brush rolls 22. The upper brush roller 21 and the lower brush roller 22 are driven to rotate by the brush roller driving mechanism 23, and the moving direction of the contact part of the upper brush roller 21 and the strip steel is kept opposite to the moving direction of the strip steel; the moving direction of the contact part of the lower brush roll 22 and the strip steel is kept opposite to the moving direction of the strip steel, the bristles of the upper brush roll 21 and the bristles of the lower brush roll 22 can generate a strong cleaning effect on the strip steel, and can respectively clean out impurity particles such as steel sand embedded in the surface of the strip steel, so that the cleaning effect is improved, and the technical problem that the strip steel after the descaling step in the prior art is easy to be cleaned unclean is solved.
Both ends of the upper brush roller 21 and both ends of the lower brush roller 22 are respectively mounted to bearing housings. The brush roller driving mechanism 23 includes a brush roller motor 231 drivingly connected to the upper brush roller 21 and a brush roller motor 231 drivingly connected to the lower brush roller 22. Preferably, the brush roller motor 231 is a variable frequency motor, which facilitates adjustment of the rotation speed of the upper brush roller 21 and the rotation speed of the lower brush roller 22 according to the speed of the production line. Preferably, the bristles of the upper and lower brush rollers 21 and 22 are made of nylon.
In one embodiment of the present invention, the strip cleaning apparatus includes at least one set of first liquid spraying mechanisms 300 provided in the casing 100, and the first liquid spraying mechanisms 300 include first upper liquid spraying pipes 31 for spraying liquid to the bristles of the upper brush rollers 21 and first lower liquid spraying pipes 32 for spraying liquid to the bristles of the lower brush rollers 22. The first upper liquid spraying pipe 31 is located above the strip steel, the first lower liquid spraying pipe 32 is located below the strip steel, the first upper liquid spraying pipe 31 and the first lower liquid spraying pipe 32 respectively extend along the axial direction of the upper brush roller 21, and a plurality of spraying openings distributed at intervals are formed in the pipe wall. The liquid sprayed from the first liquid spraying mechanism 300 can clean the cleaned foreign particles and dirt, and can take away the heat of the bristles in the brush roller mechanism 200 to cool the bristles, thereby prolonging the service life of the upper brush roller 21 and the lower brush roller 22. Preferably, the liquid sprayed from the first upper spray pipe 31 is sprayed to the position of the upper brush roller 21 contacting the strip steel, and the liquid sprayed from the first lower spray pipe 32 is sprayed to the position of the lower brush roller 22 contacting the strip steel.
Further, at least one group of brush roller mechanisms 200 comprises a first brush roller mechanism 201 and a second brush roller mechanism 202 which are sequentially distributed along the feeding direction 13; at least one set of the first liquid spraying mechanisms 300 includes the first liquid spraying mechanism 300 for spraying liquid to the first brush roll mechanism 201 and the first liquid spraying mechanism 300 for spraying liquid to the second brush roll mechanism 202, so as to enhance the cleaning effect on the strip steel.
As shown in fig. 1, the first brush roller mechanism 201, the first liquid spraying mechanism 300 that sprays liquid to the first brush roller mechanism 201, the second brush roller mechanism 202, and the first liquid spraying mechanism 300 that sprays liquid to the second brush roller mechanism 202 are sequentially distributed along the feeding direction 13. The first liquid ejection mechanisms 300 eject the liquids toward the brush roller mechanisms 200 in the reverse directions of the feeding direction 13, respectively. Specifically, the first upper spray pipes 31 spray the liquid in a direction inclined from the top downward in the direction opposite to the feeding direction 13, and the first lower spray pipes 32 spray the liquid in a direction inclined from the bottom upward in the direction opposite to the feeding direction 13. By arranging the first upper spray pipes 31 and the first lower spray pipes 32 in the above manner, the spray flow can better clean impurities from the surface of the strip and reduce the temperature of the brush roller.
In one embodiment of the present invention, the strip cleaning apparatus includes at least one set of second liquid spraying mechanisms 400 disposed in the cabinet 100, and the second liquid spraying mechanisms 400 are used to spray liquid toward the strip to wash the surface of the strip. Specifically, the second liquid ejection mechanism 400 includes a second upper liquid ejection tube 41 and a second lower liquid ejection tube 42. The second upper liquid spraying pipe 41 is located above the strip steel, the second lower liquid spraying pipe 42 is located below the strip steel, the second upper liquid spraying pipe 41 and the second lower liquid spraying pipe 42 respectively extend along the axial direction of the upper brush roller 21, and a plurality of spraying openings distributed at intervals are formed in the pipe wall. Further, the spraying direction of the second upper spraying pipe 41 and the spraying direction of the second lower spraying pipe 42 are perpendicular to the feeding direction 13, so that the washing effect on the strip steel is enhanced.
In order to facilitate control of the separation and approach between the upper brush roller 21 and the lower brush roller 22, bearing housings at both ends of the upper brush roller 21 are slidably coupled to the case 100, so that the upper brush roller 21 can slide up and down with respect to the case 100; the brush roller mechanism 200 includes a first air cylinder 24 connected to the upper brush roller 21, and the first air cylinder 24 is used to drive the upper brush roller 21 to move in the up-and-down direction. Specifically, the piston rod of the first cylinder 24 is connected to the bearing housing of the upper brush roller 21.
Further, the brush roll mechanism 200 comprises a lifting mechanism 25 connected with the upper brush roll 21, the lifting mechanism 25 is used for adjusting the distance between the upper brush roll 21 and the lower brush roll 22, fine adjustment of the position of the upper brush roll 21 is achieved, and after bristles of the upper brush roll 21 or bristles of the lower brush roll 22 are worn, the upper brush roll 21 can be driven to move downwards with high precision, the stability of the cleaning strength of the upper brush roll 21 and the lower brush roll 22 to the steel is guaranteed, the cleaning effect is improved, the service life of the upper brush roll 21 and the lower brush roll 22 is prolonged, and the replacement frequency is reduced. Preferably, the elevating mechanism 25 employs a screw elevator 251, and the screw elevator 251 is connected to a cylinder body of the first cylinder 24 to drive the first cylinder 24 and the upper brush roller 21 to move together.
More preferably, the bearing seats at both ends of the upper brush roller 21 are respectively connected with first cylinders 24, and each first cylinder 24 is respectively connected with a spiral elevator 251; the spiral lifters 251 of both ends of the upper brush roller 21 are coupled by a synchronizing shaft 26, the spiral lifter 251 of one end is provided with a motor for driving the lifting, and the spiral lifter 251 of the other end is provided with an encoder for calculating the amount of the lifting displacement to ensure the accuracy of the amount of the pressing down.
When the strip steel cleaning device operates, strip steel moves forwards along the feeding direction 13, impurities on the surface of the strip steel can be brushed away from the strip steel by the reverse motion of the lower surface of the upper brush roll 21 along the feeding direction 13, and part of the impurities can be attached to bristles; in order to reduce the foreign matters attached to the upper brush roller 21 and move again to the strip steel with the rotation of the upper brush roller 21, the inventor modified the strip steel cleaning apparatus: as shown in fig. 1 and 3, the brush roller mechanism 200 includes an upper sanding bar 211, the upper sanding bar 211 contacts with an outer circumferential surface of the upper brush roller 21, and when the upper brush roller 21 rotates, the bristles collide against the upper sanding bar 211, which is advantageous in separating foreign substances attached to the bristles from the bristles. Preferably, the upper brush bar 211 extends along the axial direction of the upper brush roller 21, and both ends are respectively fixedly connected with the bearing seats of the upper brush roller 21 through the connecting rods 2111.
The upper brush bar 211 can be installed at any position of the circumferential direction of the upper brush roller 21, the upper brush roller 21 and the upper brush bar 211 move relatively, and when the bristles collide with the upper brush bar 211, impurities can be promoted to be separated from the bristles under the action of centrifugal force. However, the inventors found that: impurities can continue to move under the action of inertia and gravity after being separated from the bristles, and part of impurities can fall onto the surface of the strip steel again. For this purpose, the inventor arranges the upper sand brushing rod 211 at one side of the upper brush roller 21 close to the strip steel feed inlet 11 and above the axis of the upper brush roller 21; and, the brush roll mechanism 200 includes a collecting groove 212, and the collecting groove 212 is disposed above the upper brush bar 211, so that the impurities are separated from the bristles and then continuously move upward and fall into the collecting groove 212.
The upper surface of the lower brush roll 22 moves in the reverse direction of the feeding direction 13, impurities on the lower surface of the strip steel can be brushed away from the strip steel, and part of the impurities can be attached to the bristles; in order to reduce the foreign matters attached to the lower brush rolls 22 and move again to the strip steel with the rotation of the lower brush rolls 22, the inventors modified the strip steel cleaning apparatus: as shown in fig. 1 and 3, the brush roller mechanism 200 includes a lower sanding rod 221, the lower sanding rod 221 contacts with the outer circumferential surface of the lower brush roller 22, and when the lower brush roller 22 rotates, the bristles collide against the lower sanding rod 221, which is advantageous in that foreign substances attached to the bristles are separated from the bristles by centrifugal action. Preferably, the lower sand brushing rod 221 extends along the axial direction of the lower brush roller 22, and two ends of the lower sand brushing rod are fixedly connected with bearing seats of the lower brush roller 22 through connecting rods respectively.
The lower sand brushing rod 221 may be installed at any position in the circumferential direction of the lower brush roll 22, and preferably, the inventor sets the lower sand brushing rod 221 at a side of the lower brush roll 22 close to the strip steel feed inlet 11 and below the axis of the lower brush roll 22, and after the bristles collide with the lower sand brushing rod 221, the impurities are separated from the bristles and fall to the bottom of the box 100.
In one embodiment of the present invention, the strip cleaning apparatus includes a scrubber 500 for contacting an upper surface of the strip, the scrubber 500 being disposed at a side of the second liquid spraying mechanism 400 adjacent to the strip discharging port 12; the scrubbing brush 500 is provided with at least one group of brush bristles 51 for contacting with the upper surface of the strip steel, and the brush bristles in the brush bristles 51 are arranged along a path inclined from the center to the outer side along the feeding direction along the width direction of the upper surface of the strip steel. As shown in fig. 2 and 4, the width direction of the upper surface of the strip steel is parallel to the axial direction of the upper brush roller 21; the strip steel moves along the feeding direction 13, the bristles in the bristle group 51 are in contact with the upper surface of the strip steel, and liquid such as water on the upper surface of the strip steel moves forwards along with the strip steel and can move outwards under the guidance of the bristle group 51, so that the liquid is brushed away from the strip steel. Preferably, the bristles of the bristle group 51 are arranged in series along the arrangement path thereof, and the bristles are natural bristles.
Further, as shown in fig. 4, the bristles of the bristle group 51 are arranged in a path inclined from the center to both sides along the feeding direction 13, and the arrangement path of the bristles of the bristle group 51 is bent in a convex shape in the opposite direction to the feeding direction 13, so as to facilitate guiding the liquid on the surface of the strip steel to sweep to both sides. Preferably, the scrubbing brush 500 is provided with a plurality of bristle groups 51 spaced along the feeding direction 13 to reduce the residual liquid on the surface of the strip.
Further, as shown in fig. 1 and 5, the strip cleaning apparatus includes a second cylinder 52 connected to the scrubber 500, and the second cylinder 52 is used to drive the scrubber 500 to move up and down so as to make the scrubber 500 close to or far away from the strip.
In one embodiment of the present invention, the strip steel cleaning device includes a wringing roller mechanism 600, the wringing roller mechanism 600 includes an upper wringing roller 61, a lower wringing roller 62 and a wringing driving mechanism 63 connected with the lower wringing roller 62, the upper wringing roller 61 and the lower wringing roller 62 are oppositely disposed, and strip steel can pass between the upper wringing roller 61 and the lower wringing roller 62 along the feeding direction 13; the wringing drive mechanism 63 is used to drive the lower wringing roller 62 to rotate. When the device is in operation, the upper wringing roller 61 is in contact with the upper surface of the strip steel; the lower wringing roller 62 is in contact with the lower surface of the strip steel, the lower wringing roller 62 is driven by the wringing driving mechanism 63 to rotate, and the moving direction of the contact surface of the lower wringing roller 62 and the strip steel is kept to be the same as the moving direction of the strip steel. The upper wringing roller 61 and the lower wringing roller 62 cooperate to wring away liquid on the surface of the strip steel, so that the moisture on the surface of the strip steel is greatly reduced, the burden of the subsequent drying step is reduced, and the generation of surface defects of the strip steel can be effectively inhibited. Preferably, the wringing drive mechanism 63 includes a variable frequency gear motor and an encoder to control the rotational speed of the lower wringing roller 62 to match the travel speed of the strip.
Further, the upper drying roll 61 is connected with a third cylinder 64, and the third cylinder 64 is used for driving the upper drying roll 61 to move up and down so as to control the separation and approach of the upper drying roll 61 and the lower drying roll 62 and apply pressure to the strip steel. Preferably, the strip cleaning apparatus includes two wringer roller mechanisms 600 distributed along the feed direction 13.
In order to ensure the cleaning effect of the strip steel cleaning device, as shown in fig. 1, a first brush roll mechanism 201, a first liquid spraying mechanism 300 for spraying liquid to the first brush roll mechanism 201, a second brush roll mechanism 202, a first liquid spraying mechanism 300 for spraying liquid to the second brush roll mechanism 202, a second liquid spraying mechanism 400, a scrubbing brush 500 and a wiping roll mechanism 600 are sequentially distributed along the feeding direction 13.
In an embodiment of the present invention, as shown in fig. 1, a plurality of supporting rollers 71 and a plurality of guide plates 72 for supporting the strip steel are arranged in the box 100, the plurality of supporting rollers 71 are distributed at intervals along the feeding direction 13, and the plurality of guide plates 72 are distributed at intervals along the feeding direction 13, so as to ensure smooth threading of the strip steel, make the strip steel move more stably, and further improve the effects of cleaning steel grit particles and removing water by the scrubbing brush.
Example two
The invention provides a strip steel descaling device, which comprises: a descaling device for spraying a mixture containing water and steel grit to the surface of the strip steel and the strip steel cleaning device, wherein a strip steel feed inlet 11 of the strip steel cleaning device is connected with a discharge outlet of the descaling device.
Specifically, the descaling device adopts a mixture of water and super-hard fine steel grit to spray the upper and lower surfaces of the strip steel, and removes oxides or iron oxide on the surface of the strip steel under the action of a certain spraying force; the large jet force when the steel grit is used for removing the oxide on the surface of the strip steel is beneficial to removing the oxide or ferric oxide on the surface of the strip steel. After the descaling step is completed in the descaling device, the strip steel enters the strip steel cleaning device, under the action of the brush roll mechanism 200, steel grit embedded into the surface of the strip steel can be cleaned, the cleaning effect is strong, and adverse effects of impurities left on the surface of the strip steel after descaling on subsequent processes and the quality of the strip steel can be effectively reduced.
Furthermore, the strip steel cleaning device adopts a device combining brushing, high-pressure flushing, scrubbing brush water removal and squeezing, so that steel grit and dirt on the surface can be cleaned, water on the surface of the strip steel is treated, the moisture on the surface of the strip steel is greatly reduced, the burden of a subsequent drying process is relieved, and the generation of surface defects of the strip steel can be effectively inhibited.
EXAMPLE III
As shown in fig. 6, the present invention provides a strip steel descaling method comprising: a descaling step of spraying a mixture containing water and steel grit to the surface of the strip steel; and a cleaning step, wherein the strip steel is cleaned by adopting the strip steel cleaning device. Through the descaling step, oxides or iron oxide on the surface of the strip steel can be well removed, and steel grit and dirt remained on the surface of the strip steel after the descaling step can be cleaned.
The above description is only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.
Claims (17)
1. A strip steel cleaning device, characterized by comprising:
the box body is provided with a strip steel feeding hole and a strip steel discharging hole, and the strip steel enters the box body in a feeding direction pointing to the strip steel discharging hole along the strip steel feeding hole;
the brush roll mechanism is arranged in the box body and comprises a brush roll driving mechanism, an upper brush roll and a lower brush roll which are oppositely arranged, strip steel can pass through the space between the upper brush roll and the lower brush roll, and the brush roll driving mechanism is used for driving the upper brush roll and the lower brush roll to rotate.
2. The strip steel cleaning apparatus as claimed in claim 1, wherein the strip steel cleaning apparatus comprises at least one set of first liquid spraying mechanisms provided in a case, the first liquid spraying mechanisms comprising first upper liquid spraying pipes for spraying liquid to the bristles of the upper brush rolls and first lower liquid spraying pipes for spraying liquid to the bristles of the lower brush rolls.
3. The strip steel cleaning apparatus as claimed in claim 2, wherein the injection direction of the first upper spray pipes is inclined from top to bottom in a direction opposite to the feeding direction, and the injection direction of the first lower spray pipes is inclined from bottom to top in a direction opposite to the feeding direction.
4. The strip cleaning apparatus of claim 1, wherein the strip cleaning apparatus comprises at least one set of second liquid spraying mechanisms provided in the tank, the second liquid spraying mechanisms being adapted to spray liquid toward the strip.
5. The strip cleaning apparatus as claimed in claim 4, wherein a liquid ejecting direction of said second liquid ejecting mechanism is perpendicular to said feeding direction.
6. The strip steel cleaning device according to claim 2, wherein at least one set of the brush roller mechanisms includes a first brush roller mechanism and a second brush roller mechanism which are sequentially distributed along the feeding direction;
at least one set of the first liquid spraying mechanisms includes the first liquid spraying mechanism that sprays liquid to the first brush roller mechanism and the first liquid spraying mechanism that sprays liquid to the second brush roller mechanism.
7. The strip steel cleaning device according to claim 1, wherein the brush roll mechanism includes a first cylinder connected to the upper brush roll, the first cylinder being configured to drive the upper brush roll to move in an up-and-down direction.
8. The strip steel cleaning device according to claim 7, wherein the brush roll mechanism includes a lifting mechanism connected to the upper brush roll, the lifting mechanism being configured to adjust a distance of the upper brush roll from the lower brush roll.
9. The strip steel cleaning device according to claim 1, wherein the brush roller mechanism includes an upper sand brushing rod and a lower sand brushing rod, the upper sand brushing rod being in contact with an outer circumferential surface of the upper brush roller, and the lower sand brushing rod being in contact with an outer circumferential surface of the lower brush roller.
10. The strip steel cleaning device according to claim 9, wherein the upper sand brushing rod is positioned on one side of the upper brush roll close to the strip steel feed opening and above the axis of the upper brush roll;
the brush roll mechanism comprises a collecting tank, and the collecting tank is arranged above the upper sand brushing rod.
11. The strip steel cleaning device according to claim 2, wherein the strip steel cleaning device comprises a scrubber for contacting with the upper surface of the strip steel, the scrubber being provided on a side of the first liquid spraying mechanism adjacent to the strip steel discharge port;
the scrubbing brush is provided with at least one group of brush hair groups used for contacting with the upper surface of the strip steel, and the brush hair in the brush hair groups are arranged along the width direction of the upper surface of the strip steel from the center to the outer side along the inclined path of the feeding direction.
12. The strip steel cleaning device according to claim 11, wherein the strip steel cleaning device comprises a second cylinder connected to the scrubber, the second cylinder being configured to drive the scrubber to move up and down.
13. The strip steel cleaning device according to claim 1, wherein the strip steel cleaning device comprises a wringing roller mechanism, the wringing roller mechanism comprises an upper wringing roller, a lower wringing roller and a wringing driving mechanism connected with the lower wringing roller, the upper wringing roller and the lower wringing roller are arranged oppositely, and the strip steel can pass through between the upper wringing roller and the lower wringing roller along a feeding direction; the squeezing driving mechanism is used for driving the lower squeezing roller to rotate.
14. The strip steel cleaning device according to claim 13, wherein a third cylinder is connected to the upper squeeze roll, and the third cylinder is used for driving the upper squeeze roll to move up and down.
15. The strip steel cleaning device according to claim 1, wherein a plurality of carrier rollers and a plurality of guide plates are provided in the tank for supporting the strip steel, the plurality of carrier rollers are spaced apart in the feeding direction, and the plurality of guide plates are spaced apart in the feeding direction.
16. A strip descaling apparatus, comprising:
a descaling device for spraying a mixture containing water and steel grit to the surface of the steel strip;
the strip steel cleaning device according to any one of claims 1 to 15, wherein a strip steel feed port of the strip steel cleaning device is connected to a discharge port of the descaling device.
17. A strip steel descaling method, comprising:
a descaling step of spraying a mixture containing water and steel grit to the surface of the strip steel;
a cleaning step of cleaning the strip steel using the strip steel cleaning apparatus according to any one of claims 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010406973.0A CN111482472A (en) | 2020-05-14 | 2020-05-14 | Strip steel cleaning device, strip steel descaling equipment and strip steel descaling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010406973.0A CN111482472A (en) | 2020-05-14 | 2020-05-14 | Strip steel cleaning device, strip steel descaling equipment and strip steel descaling method |
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| CN111482472A true CN111482472A (en) | 2020-08-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814271A (en) * | 2021-07-12 | 2021-12-21 | 南京自一界科技研发有限公司 | Rolled plate cleaning device |
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2020
- 2020-05-14 CN CN202010406973.0A patent/CN111482472A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814271A (en) * | 2021-07-12 | 2021-12-21 | 南京自一界科技研发有限公司 | Rolled plate cleaning device |
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