CN214719375U

CN214719375U - Online clearing device for roll mark defects of working roll of wet temper mill

Info

Publication number: CN214719375U
Application number: CN202022172744.5U
Authority: CN
Inventors: 王涛
Original assignee: Shanghai Meishan Iron and Steel Co Ltd
Current assignee: Shanghai Meishan Iron and Steel Co Ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-11-16
Anticipated expiration: 2030-09-28

Abstract

The utility model relates to an online clearing device for roll mark defects of a working roll of a wet temper mill, which comprises a temper mill liquid spraying assembly and a cleaning agent spraying adjustment assembly, wherein the temper mill liquid spraying assembly is arranged on the upper side and the lower side of a strip steel on the inlet side of a temper mill frame; this technical scheme has effectively promoted the throughput of wet levelling machine levelling roll seal defect, but rapid processing after the defect takes place, does not need the deceleration to change the roll, and is with low costs, and is effectual, effectively reduces the defect emergence volume.

Description

Online clearing device for roll mark defects of working roll of wet temper mill

Technical Field

The utility model relates to an online clearing device, concretely relates to online clearing device of wet-type levelling machine working roll mark defect belongs to mechanical structure technical field.

Background

The main functions of the leveler are to eliminate the band steel yield platform after annealing, reduce the yield limit value, change the mechanical property of the band steel within a certain range and obtain the surface structure of the finished band steel, and simultaneously improve the shape of the band steel and the surface quality of the band steel. The continuous annealing unit is generally provided with a set of planisher behind the annealing furnace, and the planisher is used for planishing the annealed material at a reduction rate of 1-2%. In the production process of the wet temper mill, iron powder generated in the rolling process, oil mist in a rack and the like are mixed to form oily sludge foreign matters which fall on the surface of strip steel or a roller, the oily sludge foreign matters are periodically copied along with the rolling process to form roller mark defects, the surface quality of a product is influenced, the defects are eliminated, the production rhythm of a unit is influenced only by replacing a working roller of the temper mill, and the replacement amount of the roller of the temper mill is increased. Therefore, a new solution to solve the above technical problems is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses just to the problem that exists among the prior art, provide an online clearing device of wet-type levelling machine working roll mark defect, this technical scheme has effectively solved wet-type levelling machine working roll mark defect.

In order to realize the above-mentioned purpose, the technical scheme of the utility model as follows, a wet-type levelling machine working roll seal defect online clearing device, a serial communication port, online clearing device sprays the adjustment subassembly including levelling liquid spray assembly and cleaner, wherein levelling liquid spray assembly sets up both sides about levelling machine frame entrance side belted steel, and the equipartition has put the cleaner between levelling machine frame entrance side belted steel and the upper and lower levelling liquid spray beam and has sprayed the adjustment subassembly.

As an improvement of the utility model, the leveling liquid spraying component comprises a leveling liquid spraying pipeline and a leveling liquid nozzle.

As an improvement of the utility model, a row of leveling liquid spraying pipelines are respectively arranged above and below the strip steel at the inlet side of the frame of the leveling machine, 8-15 leveling liquid nozzles are arranged on each pipeline at equal intervals, 9 leveling liquid nozzles are arranged in the scheme, the leveling liquid spraying surfaces of the nozzles are in a 30-degree fan shape and form an included angle of 15 degrees with the horizontal plane, so that the nozzles can be ensured not to generate interference, and the leveling liquid can uniformly and comprehensively cover the rolling roll gap;

as an improvement of the utility model, the leveling liquid is sprayed to the position of 4-5 points on the circumference of the upper working roll and the position of 1-2 points on the circumference of the lower working roll, partial leveling liquid sprayed on the working roll can be reflected by the roll surface of the working roll to cover the surface of the strip steel before entering the roll gap, and the residual leveling liquid is brought into the roll gap through the rotation of the working roll. The rolling lubricating effect of the leveling liquid is not affected, and meanwhile, the leveling liquid with certain pressure is directly sprayed on the roll surface of the working roll, so that the roll surface of the working roll can be sprayed and cleaned, foreign matters such as iron powder attached to the roll surface are removed, and the roll mark defect caused by entering a roll gap is prevented.

As an improvement, the cleaner sprays the adjustment subassembly and includes the screw rod, shake the wheel, the scale, the cleaner nozzle, the nozzle fixed block, cleaner hose and pulse pump, wherein the screw rod both ends are passed through the support and are fixed in the levelling machine frame, it installs in screw rod one end (levelling machine frame operation side one end to shake the wheel, cleaner nozzle fixed block is connected with the screw rod through the internal thread, when hand screw rod rotates, adjusting position can be controlled to the nozzle fixed block about, the nozzle installation is fixed on the nozzle fixed block, be connected with the other pulse pump of machine through the cleaner hose, the scale is just hugged closely the screw rod in the screw rod below by fix with rivet, be used for measuring nozzle fixed block position. When the roll mark defect of the working roll appears on the surface of the strip steel in the production process, a quality inspector measures and determines the position of the defect and then rotates the rocking wheel, and the screw rotates to drive the nozzle fixing block to move to the roll gap position corresponding to the roll mark defect (the specific position is measured through the ruler). And (3) opening the pulse pump, conveying the water-based industrial cleaning agent to the nozzle through the cleaning agent hose, spraying the cleaning agent into the roll gap, cleaning the roll surface of the working roll at the corresponding position, dissolving and removing foreign matters, thereby effectively removing the roll mark defect of the working roll, and closing the pulse pump after the defect disappears.

Compared with the prior art, the utility model has the advantages that 1) the technical scheme can effectively wash the roller while ensuring rolling lubrication through reasonable arrangement of the spray angle, flow and pressure of the leveling liquid, thereby improving the cleanness of the rolling roller gap and reducing the occurrence probability of the roll mark defect; 2) the processing capacity of the defects of the leveling roll marks of the wet leveling machine is effectively improved, the defects can be quickly processed after the defects occur, the rolls do not need to be replaced at a reduced speed, the cost is low, the effect is good, and the defect occurrence amount is effectively reduced; 3) the equipment in the technology is simple, the main equipment is a cleaning agent nozzle and a pulse pump, other parts are processed and manufactured conveniently, and the investment is low. The equipment can be assembled off line, and can be installed and debugged only by 1 hour or so of downtime of the production line. Convenient to use, when the roller mark defect of the temper mill appears, only one person is needed to rotate the rocking wheel to adjust the position of the nozzle fixing block according to the defect position beside the mill, then the pulse pump is started, and the operation can be finished in about 5 minutes

Drawings

FIG. 1 is a schematic view of a leveling liquid spray pipeline;

FIG. 2 is a schematic view of the installation position of the leveling liquid spray pipe and the leveling liquid spray angle;

FIG. 3 shows a water-based industrial cleaning agent injection pipeline and an injection position adjusting device;

FIG. 4 is a schematic view of the installation position and the injection angle of the cleaning agent injection pipeline;

in the figure: 1. leveling liquid spraying pipeline 2, leveling liquid pipeline No. 1 liquid inlet, 3, leveling liquid pipeline No. 2 liquid inlet, 4, leveling liquid nozzle, 5, screw rod, 6, nozzle, 7, nozzle fixing block, 8, rocking wheel, 9, scale, 10, cleaning agent hose, 11, pulse pump, 12, strip steel, 13, upper working roll, 14, support roll, 15, lower working roll, 16, lower support roll, 17 and cleaning agent nozzle.

The specific implementation mode is as follows:

for the purpose of enhancing the understanding of the present invention, the following detailed description is made with reference to the accompanying drawings.

Example 1: referring to fig. 1, the on-line clearing device for roll mark defects of a wet type temper mill working roll comprises a temper mill liquid spraying assembly and a cleaning agent spraying adjusting assembly, wherein the temper mill liquid spraying assembly is arranged on the upper side and the lower side of a strip steel on the inlet side of a temper mill frame, the cleaning agent spraying adjusting assembly is arranged between the strip steel on the inlet side of the temper mill frame and an upper temper mill liquid spraying beam and a lower temper mill liquid spraying beam, the temper mill liquid spraying assembly comprises a temper mill liquid spraying pipeline and temper mill liquid nozzles, a row of temper mill liquid spraying pipelines are respectively arranged on the upper side and the lower side of the strip steel on the inlet side of the temper mill frame, 9 temper mill liquid nozzles are equidistantly arranged on each pipeline, the temper mill liquid spraying surface of each nozzle is in a 30-degree fan shape and forms an included angle of 15 degrees with the horizontal plane, so that the nozzles are not interfered, the temper mill liquid uniformly and completely covers a rolling roll gap, and the temper mill liquid is sprayed to the position of 4-5 points on the circumference of an upper working roll and the position of a circumference of a lower working roll and the position of 1-2 points of the circumference of a lower working roll, the leveling liquid sprayed onto the working roll can be reflected by the roll surface of the working roll to cover the surface of the strip steel before entering the roll gap, and the residual leveling liquid is brought into the roll gap by the rotation of the working roll. The rolling lubricating effect of the leveling liquid is not influenced, meanwhile, the leveling liquid with certain pressure is directly sprayed on the roll surface of the working roll, the roll surface of the working roll can be sprayed and cleaned, foreign matters such as iron powder and the like attached to the roll surface are removed, and the roll mark defect caused by entering into a roll gap is prevented, the cleaning agent spraying adjusting component comprises a screw rod, a rocking wheel, a scale, a cleaning agent nozzle, a nozzle fixing block, a cleaning agent hose and a pulse pump, wherein two ends of the screw rod are fixed in a rack of the leveling machine through a bracket, the rocking wheel is installed at one end (the operating side end of the rack of the leveling machine), the cleaning agent nozzle fixing block is connected with the screw rod through internal threads, when the hand-operated screw rod rotates, the nozzle fixing block can move left and right to adjust the position, the nozzle is installed and fixed on the nozzle fixing block and is connected with the pulse pump beside the machine through the cleaning agent hose, and the scale is fixed below the screw rod by rivets and is tightly attached to the screw rod, used for measuring the position of the nozzle fixing block. When the roll mark defect of the working roll appears on the surface of the strip steel in the production process, a quality inspector measures and determines the position of the defect and then rotates the rocking wheel, and the screw rotates to drive the nozzle fixing block to move to the roll gap position corresponding to the roll mark defect (the specific position is measured through the ruler). And (3) opening the pulse pump, conveying the water-based industrial cleaning agent to the nozzle through the cleaning agent hose, spraying the cleaning agent into the roll gap, cleaning the roll surface of the working roll at the corresponding position, dissolving and removing foreign matters, thereby effectively removing the roll mark defect of the working roll, and closing the pulse pump after the defect disappears.

The application example is as follows: a certain 1420 continuous annealing unit adopts two-frame four-roller wet type planisher, and in the experimental stage, the planisher frame is added with the device, and the technology is applied and specifically implemented as follows:

1. a row of leveling liquid spraying pipelines are respectively arranged above and below the strip steel at the inlet side of the stand of the leveling machine No. 1 and No. 2, 9 leveling liquid nozzles are installed on each pipeline at equal intervals, and the leveling liquid spraying surfaces of the nozzles are in a sector shape of 30 degrees and form an included angle of 15 degrees with the horizontal plane; the spray pressure of the flattening liquid of the nozzle is 5kg, the flattening liquid is sprayed to the positions of 4-5 points of the circumference of the upper working roll and 1-2 points of the circumference of the lower working roll, rolling lubrication is guaranteed through spraying of the flattening liquid, and meanwhile, foreign matters such as rolling iron powder on the working roll are effectively washed and cleaned, so that the cleaning performance of the roll surface of the working roll is improved, and the occurrence probability of roll marks of the working roll is reduced.

2. A set of water-based industrial cleaning agent injection pipeline and an injection position adjusting device are respectively arranged between the strip steel at the inlet side of the stand of the 1# leveling machine and the strip steel at the upper leveling machine and the strip steel at the lower leveling machine and between the strip steel and the upper leveling liquid injection beam and the lower leveling liquid injection beam, and the device comprises a screw rod, a rocking wheel, a scale, a cleaning agent nozzle, a nozzle fixing block, a cleaning agent hose, a pulse pump and the like. When a material with the thickness of 0.2mm and the width of 835mm is produced in 25 days after 6 months, the roller mark defect with the size of soybean appears on the position 45mm away from the transmission side edge part of the upper surface of the strip steel, after a quality inspector determines the defect position through online measurement, the quality inspector sends the position to the site to rotate the rocking wheel, and the screw rotates to drive the nozzle fixing block to move to the roller gap position corresponding to the roller mark defect and 45mm away from the transmission side edge part. And (3) turning on the pulse pump, conveying the cleaning agent to the nozzle through the hose, spraying the cleaning agent into the roll gap, and turning off the pulse pump after about 12 seconds until the defects disappear.

After the unit implements the technology, the online clearing capacity of the roll mark defects of the temper mill is effectively improved, the defects can be quickly treated, and the defect occurrence amount is reduced. The roll mark defect occurrence amount of the prior planisher is reduced by 38 tons compared with the prior month.

It should be noted that the above-mentioned embodiments are not intended to limit the scope of the present invention, and all equivalent changes and substitutions made on the basis of the above-mentioned technical solutions are within the scope of the present invention as defined in the claims.

Claims

1. The utility model provides a wet-type levelling machine working roll seal defect online clearing device, its characterized in that, online clearing device includes levelling liquid spray assembly and cleaner sprays the adjustment subassembly, and wherein levelling liquid spray assembly sets up both sides about levelling machine frame entrance side belted steel, and the equipartition has put cleaner between levelling machine frame entrance side belted steel and the upper and lower levelling liquid spray beam and has sprayed the adjustment subassembly.

2. The on-line roll mark defect removal device for the working roll of a wet temper mill according to claim 1, wherein the temper liquid spray assembly comprises a temper liquid spray pipeline and a temper liquid nozzle.

3. The on-line cleaning device for roll mark defects of the working roll of the wet type temper mill according to claim 1, wherein a row of temper mill liquid spraying pipelines are respectively arranged above and below the strip steel at the inlet side of the temper mill frame, 8-15 temper mill liquid nozzles are equidistantly arranged on each pipeline, and the temper mill liquid spraying surfaces of the nozzles are in a sector shape of 30 degrees and form an included angle of 15 degrees with the horizontal plane.

4. The online cleaning device for roll mark defects of the working roll of the wet temper mill according to claim 2, wherein the cleaning agent injection adjusting assembly comprises a screw, a rocking wheel, a scale, a cleaning agent nozzle, a nozzle fixing block, a cleaning agent hose and a pulse pump, wherein two ends of the screw are fixed in the frame of the temper mill through a support, the rocking wheel is installed at one end of the screw, the cleaning agent nozzle fixing block is connected with the screw through internal threads, when the hand-operated screw rotates, the nozzle fixing block can move left and right to adjust the position, the nozzle is installed and fixed on the nozzle fixing block and is connected with the pulse pump beside the mill through the cleaning agent hose, and the scale is fixed below the screw through rivets and is tightly attached to the screw to measure the position of the nozzle fixing block.