CN111482472A - Strip cleaning device, strip descaling equipment and strip descaling method - Google Patents

Abstract

The invention provides a strip steel cleaning device, a strip steel descaling device and a strip steel descaling method. The strip steel cleaning device comprises: a box body, which is provided with a strip steel feeding port and a strip steel discharging port, and the strip steel The feeding direction into the box body is along the strip steel feed port to the strip steel discharge port; at least one set of brush roller mechanisms is arranged in the box body, and the brush roller mechanism includes a brush roller drive mechanism, oppositely arranged upper brush roller and lower brush roller. The brush roll, the strip steel can pass between the upper brush roll and the lower brush roll, and the brush roll driving mechanism is used to drive the upper brush roll and the lower brush roll to rotate. Through the present invention, the technical problem that the strip steel after the descaling step in the prior art is prone to be unclean is alleviated.

Description

Strip cleaning device, strip descaling equipment and strip descaling method

technical field

The invention relates to the technical field of rolling strip steel, in particular to a strip steel cleaning device, a strip steel descaling device and a strip steel descaling method.

Background technique

Hot rolling of strip usually includes a descaling step to remove scale from the surface of the strip, resulting in a clean and uniform surface of the strip. The descaling step mainly includes two technologies: one is the surface pickling of the strip; the other is the environmentally friendly descaling technology of the strip. The process is different from the traditional pickling in that it uses water and ultra-hard fine steel grit. The mixture is sprayed on the upper and lower surfaces of the coiled steel plate, and the oxide or iron oxide scale on the surface of the steel plate is removed under the action of a certain spray force. This process is called descaling.

The cleaning after the strip descaling step is a key process. The strip with a certain speed is pulled out of the descaling device, cleaned by the cleaning device, the steel sand and dirt adhering to the surface of the strip are removed, and the strip is dried. Water on steel surface. Unclean surface cleaning not only makes the surface of the strip steel black and affects the appearance; it has a great impact on the next rolling process, and the steel sand and iron powder on the surface of the strip steel will stick to the rolls, causing the rolls to accumulate and accelerate the use of the rolls. Life, the accumulation on the roll body will be pressed into the rolled strip, affecting the quality of the rolled product.

Usually, high-pressure water is used to clean the surface of the strip, and the water is sprayed onto the surface of the strip by a high-pressure water pump, and the steel grit and dirt on the surface of the strip are cleaned by the pressure of the water. However, after the strip steel using the environmental protection descaling technology is cleaned by the cleaning method in the prior art, the surface of the strip steel is still prone to residual steel grit particles, resulting in unclean cleaning.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a strip cleaning device, strip descaling equipment and strip descaling method, so as to alleviate the technical problem that the strip after the descaling step in the prior art is prone to be unclean.

Above-mentioned purpose of the present invention can adopt following technical scheme to realize:

The invention provides a strip steel cleaning device, comprising: a box body, which is provided with a strip steel feeding port and a strip steel discharging port, and the feeding direction of the strip steel entering the box body is along the strip steel feeding port Point to the strip steel discharge port; at least one set of brush roller mechanisms arranged in the box, the brush roller mechanism includes a brush roller drive mechanism, an upper brush roller and a lower brush roller arranged oppositely, and the strip steel can pass from the upper brush roller. The brush roller and the lower brush roller pass through, and the brush roller driving mechanism is used to drive the upper brush roller and the lower brush roller to rotate.

In a preferred embodiment, the strip cleaning device includes at least one set of first liquid spraying mechanisms arranged in the box, and the first liquid spraying mechanism includes a first liquid spraying mechanism for spraying liquid to the bristles of the upper brush roller. An upper liquid spraying pipe and a first lower liquid spraying pipe for spraying liquid to the bristles of the lower brush roller.

In a preferred embodiment, the spraying direction of the first upper liquid spraying pipe is a reverse inclination along the feeding direction from top to bottom, and the spraying direction of the first lower liquid spraying pipe is from bottom to top. The opposite inclination of the feed direction.

In a preferred embodiment, the strip steel cleaning device includes at least one group of second liquid spraying mechanisms arranged in the box, and the second liquid spraying mechanisms are used to spray liquid toward the strip steel.

In a preferred embodiment, the liquid spraying direction of the second liquid spraying mechanism is perpendicular to the feeding direction.

In a preferred embodiment, at least one group of the brush roller mechanisms includes a first brush roller mechanism and a second brush roller mechanism that are sequentially distributed along the feeding direction; at least one group of the first liquid spray mechanisms includes The first liquid ejecting mechanism that ejects liquid from the first brush roller mechanism and the first liquid ejecting mechanism that ejects 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, and the first air cylinder is used to drive the upper brush roller to move in an up-down direction.

In a preferred embodiment, the brush roller mechanism includes a lifting mechanism connected to the upper brush roller, and the lifting mechanism is used to adjust the distance between the upper brush roller and the lower brush roller.

In a preferred embodiment, the brush roller mechanism includes an upper sand brush bar and a lower sand brush bar, the upper sand brush bar is in contact with the outer circumferential surface of the upper brush roller, and the lower sand brush bar is in contact with the The outer circumferential surface of the lower brush roller is in contact.

In a preferred embodiment, the upper sand brushing bar is located on the side of the upper brush roller close to the strip steel feed port, and is located above the axis of the upper brush roller; the brush roller mechanism includes: a collection tank, which is arranged above the upper sand brushing rod.

In a preferred embodiment, the strip cleaning device includes a plate brush for contacting the upper surface of the strip, and the plate brush is provided on the first liquid spray mechanism near the strip discharge port. one side; the plate brush is provided with at least one bristle group for contacting the upper surface of the strip steel, along the width direction of the upper surface of the strip steel, the bristles in the bristle group are arranged in a direction from the center to the The outer side is arranged along a path inclined in the feeding direction.

In a preferred embodiment, the strip cleaning device includes a second air cylinder connected to the plate brush, and the second air cylinder is used to drive the plate brush to move up and down.

In a preferred embodiment, the strip steel cleaning device includes a squeezing roller mechanism, and the squeezing roller mechanism includes an upper squeezing roller, a lower squeezing roller, and a squeezing drive mechanism connected to the lower squeezing roller, The upper squeezing roller and the lower squeezing roller are arranged opposite to each other, and the strip steel can pass between the upper squeezing roller and the lower squeezing roller along the feeding direction; the squeezing driving mechanism uses to drive the lower squeeze roller to rotate.

In a preferred embodiment, the upper squeezing roller is connected with a third air cylinder, and the third air cylinder is used to drive the upper squeezing roller to move up and down.

In a preferred embodiment, a plurality of idler rollers and a plurality of guide plates for supporting the strip steel are arranged in the box, and a plurality of the idler rollers are distributed along the feeding direction at intervals, and a plurality of the guide plates spaced along the feed direction.

The invention provides a strip steel descaling equipment, comprising:

A descaling device for spraying a mixture comprising water and steel grit onto the surface of the strip;

In the above strip steel cleaning device, the strip steel feed port of the strip steel cleaning device is connected to the discharge port of the descaling device.

The invention provides a strip steel descaling method, comprising:

In the descaling step, a mixture comprising water and steel grit is sprayed onto the surface of the strip;

In the cleaning step, the above-mentioned strip steel cleaning device is used to clean the strip steel.

The features and advantages of the present invention are:

After the descaling step is completed, the strip enters the box of the strip cleaning device from the strip feed port, and passes through between the upper brush roll and the lower brush roll. The upper brush roller and the lower brush roller rotate under the drive of the brush roller drive mechanism, and the moving direction of the contact part between the upper brush roller and the strip is kept opposite to the moving direction of the strip; the contact part of the lower brush roller and the strip is kept in the opposite direction. The moving direction of the strip is opposite to the moving direction of the strip. The bristles of the upper brush roll and the bristles of the lower brush roll can have a strong cleaning effect on the strip, and can respectively clean the steel sand and other impurities embedded in the surface of the strip. It improves the cleaning effect and alleviates the technical problem that the strip steel after the descaling step in the prior art is prone to be uncleanly cleaned.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a front view of a strip cleaning device provided by the present invention;

Fig. 2 is a top view of the strip cleaning device shown in Fig. 1;

Fig. 3 is the structural schematic diagram of the brush roller mechanism in the strip cleaning device shown in Fig. 1;

Fig. 4 is a partial enlarged view of the plate brush in the strip cleaning device shown in Fig. 2;

Fig. 5 is a partial enlarged view of the plate brush in the strip cleaning device shown in Fig. 1;

Fig. 6 is a schematic diagram of the strip steel descaling method provided by the present invention.

Description of reference numbers:

100. Box body; 11. Steel strip inlet; 12. Strip steel outlet; 13. Feeding direction;

200, a brush roller mechanism; 201, a first brush roller mechanism; 202, a second brush roller mechanism;

21. Upper brush roller; 211. Upper sand brush; 2111, connecting rod; 212, collecting tank;

22. Lower brush roller; 221. Lower sand brush;

23. Brush roller drive mechanism; 231, Brush roller motor; 24, First cylinder; 25, Lifting mechanism; 251, Screw elevator; 26, Synchronous shaft;

300, the first liquid spray mechanism; 31, the first upper liquid spray pipe; 32, the first lower liquid spray pipe;

400, the second liquid spray mechanism; 41, the second upper liquid spray pipe; 42, the second lower liquid spray pipe;

500, plate brush; 51, bristle group; 52, the second cylinder;

600, squeeze roller mechanism; 61, upper squeeze roller; 62, lower squeeze roller; 63, squeeze drive mechanism; 64, third cylinder;

71, idler; 72, guide plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

The inventor has studied the strip steel that is descaled by spraying steel grit, and the inventor found that when descaling, after the steel grit peels off the iron oxide scale of the strip steel, some tiny particles of steel grit are embedded on the surface of the strip steel. The high pressure water pressure is very large, which can remove most of the surface steel grit and dirt, but when descaling, the spray force when using steel grit to remove oxides on the surface of the strip steel is very large, and some tiny particles are embedded in the surface of the strip steel, and the water flow rinses Difficult to clean out the particles.

To this end, the present invention provides a strip cleaning device, as shown in Figures 1-2, the strip cleaning device includes: a box 100, which is provided with a strip inlet 11 and a strip outlet 12 , the feeding direction 13 of the strip entering the box body 100 is along the strip steel feeding port 11 to the strip steel discharging port 12; at least one set of brush roller mechanisms 200 are arranged in the box body 100, and the brush roller mechanism 200 includes a brush roller The driving mechanism 23, the oppositely arranged upper brush roll 21 and the lower brush roll 22, the strip can pass between the upper brush roll 21 and the lower brush roll 22, and the brush roll driving mechanism 23 is used to drive the upper brush roll 21 and the lower brush roll 22 spins.

After the descaling step is completed, the strip enters the box 100 from the strip feed port 11 , and passes between the upper brush roll 21 and the lower brush roll 22 . The upper brush roller 21 and the lower brush roller 22 are rotated under the drive of the brush roller drive mechanism 23, and the moving direction of the contact portion between 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 strip is opposite to the moving direction of the strip. The bristles of the upper brush roller 21 and the bristles of the lower brush roller 22 can have a strong cleaning effect on the strip, and can be embedded in the surface of the strip respectively. The impurity particles such as steel grit are cleaned out, the cleaning effect is improved, and the technical problem that the strip steel after the descaling step in the prior art is prone to be uncleanly cleaned.

Both ends of the upper brush roller 21 and both ends of the lower brush roller 22 are respectively mounted on the bearing housings. The brush roll driving mechanism 23 includes a brush roll motor 231 drivingly connected with the upper brush roll 21 and a brush roll motor 231 drivingly connected with the lower brush roll 22 . Preferably, the brush roller motor 231 adopts a frequency conversion motor, so that the rotational speed of the upper brush roller 21 and the rotational speed of the lower brush roller 22 can be adjusted according to the speed of the production line. Preferably, the bristles of the upper brush roller 21 and the lower brush roller 22 are made of nylon.

In an embodiment of the present invention, the strip cleaning device includes at least one set of first liquid spraying mechanisms 300 disposed in the box body 100 . An upper liquid spraying pipe 31 and a first lower liquid spraying pipe 32 for spraying liquid to the bristles of the lower brush roller 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 are respectively along the axial direction of the upper brush roller 21 extension, and a plurality of spray ports distributed at intervals are arranged on the pipe wall. The liquid sprayed by the first liquid spraying mechanism 300 can, on the one hand, clean off the cleaned impurity particles and dirt, and on the other hand, can also take away the heat on the bristles in the brush roller mechanism 200, which has a cooling effect and prolongs the upper The service life of the brush roll 21 and the lower brush roll 22. Preferably, the liquid sprayed from the first upper liquid spray pipe 31 is sprayed to the position of the upper brush roll 21 in contact with the strip steel, and the liquid sprayed from the first lower liquid spray pipe 32 is sprayed to the lower brush roll 22 in contact with the strip steel. contact location.

Further, at least one group of brush roller mechanisms 200 includes a first brush roller mechanism 201 and a second brush roller mechanism 202 distributed in sequence along the feeding direction 13 ; at least one group of first liquid spray mechanisms 300 includes a first brush roller mechanism 201 The first liquid spraying mechanism 300 for spraying liquid and the first liquid spraying mechanism 300 for spraying liquid to the second brush roller mechanism 202 are used to enhance the cleaning effect of strip steel.

As shown in FIG. 1 , a first brush roll mechanism 201 , a first liquid spray mechanism 300 for spraying liquid to the first brush roll mechanism 201 , a second brush roll mechanism 202 , and a first spray mechanism for spraying liquid to the second brush roll mechanism 202 The liquid mechanism 300 is sequentially distributed along the feeding direction 13 . The first liquid spraying mechanisms 300 respectively spray liquids toward the brush roller mechanism 200 in the reverse direction of the feeding direction 13 . Specifically, the first upper liquid spraying pipe 31 sprays the liquid in a reversely inclined direction along the feeding direction 13 from top to bottom, and the first lower liquid spraying pipe 32 is inclined reversely along the feeding direction 13 from bottom to top. direction to spray liquid. By arranging the first upper liquid spraying pipe 31 and the first lower liquid spraying pipe 32 in the above manner, the spray flow can better clean the impurities on the surface of the strip steel and reduce the temperature of the brush roll.

In an embodiment of the present invention, the strip cleaning device includes at least one group of second liquid spraying mechanisms 400 disposed in the box 100, and the second liquid spraying mechanisms 400 are used to spray liquid toward the strip, so as to spray liquid on the strip. Rinse the surface. Specifically, the second liquid spraying mechanism 400 includes a second upper liquid spraying pipe 41 and a second lower liquid spraying pipe 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 are respectively along the axial direction of the upper brush roller 21 extension, and a plurality of spray ports distributed at intervals are arranged on the pipe wall. Further, the liquid spraying direction of the second upper liquid spraying pipe 41 and the liquid spraying direction of the second lower liquid spraying pipe 42 are both perpendicular to the feeding direction 13, so as to enhance the washing effect of the strip steel.

In order to facilitate the control of the separation and approach between the upper brush roller 21 and the lower brush roller 22 , the bearing seats at both ends of the upper brush roller 21 are slidably connected to the box body 100 , so that the upper brush roller 21 can move up and down relative to the box body 100 . Sliding; the brush roller mechanism 200 includes a first air cylinder 24 connected with 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-down direction. Specifically, the piston rod of the first air cylinder 24 is connected with the bearing seat of the upper brush roller 21 .

Further, the brush roller mechanism 200 includes a lifting mechanism 25 connected with the upper brush roller 21. The lifting mechanism 25 is used to adjust the distance between the upper brush roller 21 and the lower brush roller 22, so as to realize the fine adjustment of the position of the upper brush roller 21, which is convenient for After the bristles of the upper brush roller 21 or the bristles of the lower brush roller 22 are worn, the upper brush roller 21 can be driven to move down with high precision to ensure the stability of the cleaning strength of the upper brush roller 21 and the lower brush roller 22 to the strip steel , improve the cleaning effect, prolong the use time of the upper brush roller 21 and the lower brush roller 22, and reduce the replacement frequency. Preferably, the lifting mechanism 25 adopts a screw lifter 251 , and the screw lifter 251 is connected with the cylinder block of the first air cylinder 24 to drive the first air 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 a first cylinder 24, and each first cylinder 24 is connected with a screw elevator 251; The screw elevator 251 at one end is equipped with a motor to drive the lifting and lowering, and the screw elevator 251 at the other end is equipped with an encoder to calculate the displacement amount of the lifting and lowering, so as to ensure the accuracy of the pressing amount.

When the strip cleaning device is running, the strip moves forward along the feeding direction 13, and the lower surface of the upper brush roller 21 moves in the reverse direction along the feeding direction 13, which will brush the impurities on the surface of the strip away from the strip. Part of the impurities will be attached to the bristles; in order to reduce the impurities attached to the upper brush roller 21, and the upper brush roller 21 rotates and moves to the strip again, the inventor has improved the strip cleaning device: as shown in Figure 1 and Figure 1 As shown in Fig. 3, the brush roller mechanism 200 includes an upper sand brush bar 211, and the upper sand brush bar 211 is in contact with the outer circumferential surface of the upper brush roller 21. When the upper brush roller 21 rotates, the bristles will collide with the upper sand brush bar 211. It is beneficial to remove the impurities attached to the bristles from the bristles. Preferably, the upper sand brushing rod 211 extends along the axial direction of the upper brush roller 21 , and the two ends thereof are respectively fixed to the bearing seat of the upper brush roller 21 through the connecting rods 2111 .

The upper sand brush 211 can be installed at any position in the circumferential direction of the upper brush roller 21. The upper brush roller 21 and the upper sand brush bar 211 move relative to each other. When the bristles collide with the upper sand brush bar 211, impurities can be detached under the action of centrifugal force. bristles. However, the inventor found that: after the impurities are separated from the bristles, they will continue to move under the action of inertia and gravity, and some of the impurities will fall on the surface of the strip steel again. To this end, the inventors set the upper sand brush 211 on the side of the upper brush roll 21 close to the strip steel feed port 11 and above the axis of the upper brush roll 21; and the brush roll mechanism 200 includes a collection groove 212 , the collection tank 212 is arranged above the upper sand brushing rod 211 , after the impurities are separated from the bristles, they will continue to move upward and fall into the collection tank 212 .

The reverse movement of the upper surface of the lower brush roller 22 along the feeding direction 13 will brush the impurities on the lower surface of the strip away from the strip, and some impurities will adhere to the bristles; in order to reduce the impurities attached to the lower brush roller 22, As the lower brush roller 22 rotates and moves to the strip again, the inventor has improved the strip cleaning device: as shown in Figures 1 and 3 , the brush roller mechanism 200 includes a lower sand brushing rod 221 and a lower sand brushing rod 221. In contact with the outer circumferential surface of the lower brush roller 22, when the lower brush roller 22 rotates, the bristles will collide with the lower sand brushing bar 221, which is beneficial for the impurities attached to the bristles to be separated from the bristles under centrifugal action. Preferably, the lower sand brushing rod 221 extends along the axial direction of the lower brush roller 22 , and the two ends thereof are respectively fixed to the bearing seat of the lower brush roller 22 through connecting rods.

The lower sand brushing bar 221 can be installed at any position in the circumferential direction of the lower brush roller 22. Preferably, the inventors set the lower sand brushing bar 221 on the side of the lower brush roller 22 that is close to the strip steel feed port 11, and is located at the bottom of the lower brush roller 22. Below the axis of the brush roller 22 , after the bristles collide with the lower sand brushing bar 221 , the impurities are separated from the bristles and fall to the bottom of the box body 100 .

In an embodiment of the present invention, the strip cleaning device includes a plate brush 500 for contacting the upper surface of the strip, and the plate brush 500 is arranged on the side of the second liquid spray mechanism 400 close to the strip discharge port 12; the plate brush 500 is provided with at least one group of bristles 51 for contacting the upper surface of the strip, along the width direction of the upper surface of the strip, the bristles in the bristles 51 are arranged in a path inclined from the center to the outside along the feeding direction. cloth. As shown in Figures 2 and 4, the width direction of the upper surface of the strip is parallel to the axis direction of the upper brush roll 21; the strip moves along the feeding direction 13, and the bristles in the bristle group 51 are in contact with the upper surface of the strip, The liquid such as water on the upper surface of the strip moves forward with the strip, and can move to the outside under the guidance of the bristle group 51, thereby brushing the liquid away from the strip. Preferably, the bristles in the bristles group 51 are continuously arranged along the arrangement path thereof, and the bristles are natural bristle bristles.

Further, as shown in FIG. 4 , the bristles in the bristle group 51 are arranged in a path inclined along the feeding direction 13 from the center to both sides respectively, and the arrangement path of the bristles in the bristle group 51 is along the feeding direction 13 . Reverse convex bent shape to help guide the liquid on the surface of the strip to sweep to both sides. Preferably, the plate brush 500 is provided with a plurality of bristle groups 51 spaced apart along the feeding direction 13, so as to reduce the residual liquid on the surface of the strip steel.

Further, as shown in FIG. 1 and FIG. 5 , the strip cleaning device includes a second air cylinder 52 connected to the plate brush 500 , the second air cylinder 52 is used to drive the plate brush 500 to move up and down, so that the plate brush 500 is close to or away from the strip.

In one embodiment of the present invention, the strip cleaning device includes a squeeze roller mechanism 600 , and the squeeze roller mechanism 600 includes an upper squeeze roller 61 , a lower squeeze roller 62 and a squeeze drive mechanism connected to the lower squeeze roller 62 63, the upper squeezing roller 61 and the lower squeezing roller 62 are arranged oppositely, and the strip can pass between the upper squeezing roller 61 and the lower squeezing roller 62 along the feeding direction 13; the squeezing drive mechanism 63 is used to drive the lower squeezing The dry roll 62 rotates. When the device is running, the upper squeezing roller 61 is in contact with the upper surface of the strip; the lower squeezing roller 62 is in contact with the lower surface of the strip, and the lower squeezing roller 62 is driven by the squeezing drive mechanism 63. The moving direction of the contact surface of the squeeze roller 62 with the strip steel is kept in the same direction as the moving direction of the strip steel. The upper squeezing roller 61 cooperates with the lower squeezing roller 62 to squeeze away the liquid on the surface of the strip, so that the water on the surface of the strip is greatly reduced, the burden of subsequent drying steps is reduced, and the occurrence of surface defects on the strip can be effectively suppressed. Preferably, the squeezing drive mechanism 63 includes a variable frequency gear motor and an encoder, so as to control the rotation speed of the lower squeezing roller 62 to match the moving speed of the strip.

Further, the upper squeezing roller 61 is connected with a third air cylinder 64, and the third air cylinder 64 is used to drive the upper squeezing roller 61 to move up and down, so as to control the separation and approach of the upper squeezing roller 61 and the lower squeezing roller 62, and Apply pressure to the strip. Preferably, the strip cleaning device includes two squeeze roller mechanisms 600 distributed along the feeding direction 13 .

In order to ensure the cleaning effect of the strip cleaning device, as shown in FIG. 1 , a first brush roller mechanism 201 , a first liquid spray mechanism 300 for spraying liquid to The first liquid spraying mechanism 300 , the second liquid spraying mechanism 400 , the plate brush 500 and the squeezing roller mechanism 600 sprayed by the second brush roller mechanism 202 are distributed in sequence along the feeding direction 13 .

In an embodiment of the present invention, as shown in FIG. 1 , the box 100 is provided with a plurality of idlers 71 and a plurality of guide plates 72 for supporting the strip, and the multiple idlers 71 are distributed along the feeding direction 13 at intervals, A plurality of guide plates 72 are distributed at intervals along the feeding direction 13 to ensure the smooth passing of the strip, make the strip move more smoothly, and further improve the effect of cleaning steel sand particles and removing water by the plate brush.

Embodiment 2

The invention provides a strip steel descaling device, comprising: a descaling device for spraying a mixture containing water and steel grit to the surface of the strip steel, the above strip steel cleaning device, and the strip steel feed of the strip steel cleaning device. The port 11 is connected with the discharge port of the descaling device.

Specifically, the descaling device uses a mixture of water and ultra-hard fine steel grit to spray the upper and lower surfaces of the strip, and removes oxides or iron oxides on the surface of the strip under the action of a certain spray force; The ejection force of the oxide on the steel surface is large, which is beneficial to remove the oxide or iron oxide on the surface of the strip. After the descaling step is completed in the descaling device, the strip enters the strip cleaning device. Under the action of the brush roller mechanism 200, the steel grit embedded in the surface of the strip can be cleaned, which has a strong cleaning effect and can Effectively reduce the impurities remaining on the surface of the strip after descaling, which adversely affects the subsequent processes and the quality of the strip.

Further, the strip cleaning device adopts a combination of brushing, high-pressure washing, plate brush water removal and squeezing, which can not only clean the steel sand and dirt on the surface, but also treat the water on the surface of the strip, so that the surface of the strip is free of water. The number of parts is greatly reduced, and the burden of the subsequent drying process is reduced, so the occurrence of surface defects of the strip can be effectively suppressed.

Embodiment 3

As shown in Figure 6, the present invention provides a strip steel descaling method, comprising: a descaling step, spraying a mixture containing water and steel grit on the surface of the strip; Strip for cleaning. Through the descaling step, oxides or iron oxides on the surface of the strip steel can be better removed, and the steel grit and dirt remaining on the surface of the strip steel after the descaling step can be washed off.

The above are 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 contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims (17)

1. a strip cleaning device, is characterized in that, comprises: The box body is provided with a strip steel feed port and a strip steel discharge port, and the feeding direction of the strip steel into the box body is directed to the strip steel discharge port along the strip steel feed port; At least one set of brush roller mechanisms is arranged in the box, the brush roller mechanism includes a brush roller drive mechanism, an upper brush roller and a lower brush roller arranged oppositely, and the strip steel can pass from the upper brush roller and the lower brush roller. The brush roller driving mechanism is used to drive the upper brush roller and the lower brush roller to rotate. 2 . The strip cleaning device according to claim 1 , wherein the strip cleaning device comprises at least one group of first liquid spraying mechanisms arranged in the box, and the first liquid spraying mechanism includes a The bristles of the upper brush roller spray the first upper liquid spray pipe and the first lower liquid spray pipe is used for spraying the liquid to the bristles of the lower brush roller. 3 . The strip cleaning device according to claim 2 , wherein the spraying direction of the first upper liquid spray pipe is a reverse inclination along the feeding direction from top to bottom, and the first bottom The spraying direction of the liquid spraying pipe is a reverse inclination along the feeding direction from bottom to top. 4 . The strip cleaning device according to claim 1 , wherein the strip cleaning device comprises at least one group of second liquid spraying mechanisms arranged in the box, and the second liquid spraying mechanisms are used to point to the The strip is sprayed with liquid. 5 . The strip cleaning device according to claim 4 , wherein the spraying direction of the second liquid spraying mechanism is perpendicular to the feeding direction. 6 . 6. The strip cleaning device according to claim 2, wherein at least one group of the brush roller mechanisms comprises a first brush roller mechanism and a second brush roller mechanism distributed in sequence along the feeding direction; At least one set of the first liquid spraying mechanism includes the first liquid spraying mechanism that sprays liquid to the first brushroll mechanism and the first liquid spraying mechanism that sprays liquid to the second brushroll mechanism. 7 . The strip steel cleaning device according to claim 1 , wherein the brush roller mechanism comprises a first air cylinder connected with the upper brush roller, and the first air cylinder is used to drive the upper brush roller along the edge. 8 . Movement up and down. 8 . The strip cleaning device according to claim 7 , wherein the brush roller mechanism comprises a lifting mechanism connected with the upper brush roller, and the lifting mechanism is used to adjust the distance between the upper brush roller and the upper brush roller. 9 . The distance of the lower brush roll. 9 . The strip cleaning device according to claim 1 , wherein the brush roller mechanism comprises an upper sand brush bar and a lower sand brush bar, the upper sand brush bar and the outer circumferential surfaces of the upper brush roller contact, the lower sand brushing bar is in contact with the outer circumferential surface of the lower brush roller. 10 . The strip cleaning device according to claim 9 , wherein the upper sand brushing rod is located on the side of the upper brush roller close to the strip steel feed port, and is located on the upper brush roller. 11 . above the axis; The brush roller mechanism includes a collection groove, and the collection groove is arranged above the upper sand brushing rod. 11 . The strip cleaning device according to claim 2 , wherein the strip cleaning device comprises a plate brush for contacting the upper surface of the strip, the plate brush being arranged on the first spraying liquid. 12 . the side of the mechanism close to the strip outlet; The plate brush is provided with at least one group of bristles for contacting the upper surface of the strip steel, along the width direction of the upper surface of the strip steel, the bristles in the bristles group are arranged along all directions from the center to the outside. The path arrangement is inclined in the feeding direction. 12 . The strip cleaning device according to claim 11 , wherein the strip cleaning device comprises a second air cylinder connected to the plate brush, and the second air cylinder is used to drive the plate brush to move up and down. 13 . 13. The strip steel cleaning device according to claim 1, wherein the strip steel cleaning device comprises a squeeze roller mechanism, and the squeeze roller mechanism comprises an upper squeeze roller, a lower squeeze roller, and a squeeze roller. A squeezing drive mechanism connected to the lower squeezing roller, the upper squeezing roller and the lower squeezing roller are arranged oppositely, and the strip steel can pass from the upper squeezing roller and the lower squeezing roller along the feeding direction passing between; the squeezing drive mechanism is used to drive the lower squeezing roller to rotate. 14 . The strip cleaning device according to claim 13 , wherein a third air cylinder is connected to the upper squeezing roller, and the third air cylinder is used to drive the upper squeezing roller to move up and down. 15 . 15. The strip cleaning device according to claim 1, wherein a plurality of idler rollers and a plurality of guide plates for supporting the strip are provided in the box, and a plurality of the idler rollers are arranged along the The feeding direction is distributed at intervals, and a plurality of the guide plates are distributed at intervals along the feeding direction. 16. A strip steel descaling equipment is characterized in that, comprising: A descaling device for spraying a mixture comprising water and steel grit onto the surface of the strip; The strip steel cleaning device according to any one of claims 1-15, wherein the strip steel feed port of the strip steel cleaning device is connected to the discharge port of the descaling device. 17. a strip steel descaling method, is characterized in that, comprises: In the descaling step, a mixture comprising water and steel grit is sprayed onto the surface of the strip; In the cleaning step, the strip steel cleaning device according to any one of claims 1-15 is used to clean the strip steel.

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