CN117943419A

CN117943419A - Descaling device, hot rolled strip steel production equipment and control method of descaling device

Info

Publication number: CN117943419A
Application number: CN202410160271.7A
Authority: CN
Inventors: 柯雪利; 袁青峰; 王文凯; 柯辉; 冯德春; 黎建东; 韦泽辉; 丛春来
Original assignee: Guangxi Guangsheng New Material Technology Co ltd; Guangxi Shenglong Iron and Steel Materials Research Institute; Guangxi Shenglong Metallurgical Co Ltd
Current assignee: Guangxi Guangsheng New Material Technology Co ltd; Guangxi Shenglong Iron and Steel Materials Research Institute; Guangxi Shenglong Metallurgical Co Ltd
Priority date: 2024-02-04
Filing date: 2024-02-04
Publication date: 2024-04-30

Abstract

The application is suitable for the technical field of hot-rolled strip steel production equipment, and provides a descaling device, hot-rolled strip steel production equipment and a control method of the descaling device.

Description

Descaling device, hot rolled strip steel production equipment and control method of descaling device

Technical Field

The application belongs to the technical field of hot-rolled strip steel production equipment, and particularly relates to a descaling device, hot-rolled strip steel production equipment and a control method of the descaling device.

Background

The hot-rolled strip steel is a product produced through the technological processes of heating, rolling, cooling and the like, in the production process of the hot-rolled strip steel, the procedures of preparing molten iron, roughing, refining, continuous casting, heating steel billets, hot rolling, cooling, finishing and the like are needed, in the heating and rolling process of the steel billets, because the temperature of the steel billets is higher, a large amount of iron scales are generated on the surfaces of the steel billets after the steel billets are contacted with oxygen in the air, the generation of the iron scales can cause the metal loss of the hot-rolled strip steel, the yield of the hot rolling is reduced, meanwhile, the iron scales can cause quality defects such as spots, pits and the like after being pressed into the surfaces of the hot-rolled strip steel, so that the iron scales on the steel billets need to be removed through a descaling box before the steel billets enter the roughing and the finishing rolling, and the existing descaling box can uniformly spray water upwards when the iron scales are removed, and the steel billets can be cooled.

However, the descaling mode can cause the temperature decrease speed in the middle of the steel billet, which is lower than the temperature decrease speed at the edge of the steel billet, so that the production quality of the hot rolled strip steel is affected, and the iron scale cannot be removed in a targeted manner, so that the water resource is wasted, and the temperature decrease of the steel billet is overlarge.

Disclosure of Invention

The embodiment of the application aims to provide a descaling device, hot-rolled strip steel production equipment and a control method of the descaling device, and aims to solve the technical problems that in the prior art, scale cannot be removed in a targeted manner by a descaling box, water consumption is high, so that the temperature of a steel billet is excessively reduced, and the production quality of hot-rolled strip steel is affected.

In order to achieve the above object, according to one aspect of the present application, there is provided a descaling device for removing an oxide layer on a steel slab, the descaling device comprising: the device comprises a box body, a first liquid spraying part and an adjusting part, wherein a containing cavity is arranged in the box body; the first liquid spraying part comprises a plurality of first liquid spraying components which are arranged in the accommodating cavity at intervals along the first direction and are used for spraying liquid on the steel billet so as to remove an oxide layer on the steel billet; the adjusting part comprises a plurality of adjusting components, the adjusting components are in one-to-one correspondence with the plurality of first liquid spraying components, and the adjusting components are communicated with the input ends of the first liquid spraying components and are used for adjusting the pressure and flow of liquid sprayed out by the first liquid spraying components.

Optionally, the descaling device further comprises a conveying part, wherein the conveying part is arranged in the accommodating cavity and extends along the second direction for conveying the steel billet.

Optionally, the descaling device further comprises a first detection part, wherein the first detection part is arranged in the accommodating cavity and corresponds to the position of the conveying part, and is used for detecting the oxidation layer of the steel billet on the conveying part.

Optionally, the first liquid spraying part is located at a position corresponding to the position of the conveying part, and the descaling device further comprises a second liquid spraying part, wherein the second liquid spraying part is arranged in the accommodating cavity and corresponds to the position of the conveying part, and is used for spraying liquid to the steel billet so as to remove the oxide layer on the steel billet.

Optionally, the first liquid spraying part and the second liquid spraying part are respectively located at two sides of the conveying part, the steel billet on the conveying part is located between the first liquid spraying part and the conveying part, the first liquid spraying part is used for spraying liquid on one side of the steel billet far away from the conveying part, and the second liquid spraying part is used for spraying liquid on one side of the steel billet close to the conveying part.

Optionally, the first hydrojet subassembly includes lifting unit and first nozzle, and lifting unit sets up in holding the intracavity, and first nozzle and adjusting part intercommunication, lifting unit's output and first nozzle drive are connected, and first nozzle can be under lifting unit's drive, to be close to or keep away from the direction of conveying portion and carry out position adjustment.

Optionally, the first liquid spraying assembly further comprises a first rotating assembly, the lifting assembly is in driving connection with the first rotating assembly, the first rotating assembly is in driving connection with the first nozzle, and the first nozzle can rotate along the second direction under the driving of the first rotating assembly; the first liquid spraying assembly further comprises a second rotating assembly, the second rotating assembly is arranged at the output end of the lifting assembly and is in driving connection with the first rotating assembly, and the first rotating assembly can rotate along the first direction under the driving of the second rotating assembly.

Optionally, the descaling device further comprises a control part, and the control part is arranged on the box body, is electrically connected with the first liquid spraying part, the second liquid spraying part, the adjusting part and the first detecting part, and is used for controlling the operation of the first liquid spraying part, the second liquid spraying part, the adjusting part and the first detecting part.

According to another aspect of the present application, there is provided a hot rolled steel strip production apparatus including a descaling device, the descaling device being the above-described descaling device.

According to still another aspect of the present application, there is provided a control method of a descaling device, applied to the above descaling device, the method comprising: controlling a plurality of first liquid spraying components in the first liquid spraying part to spray liquid to the steel billet to remove the oxide layer on the steel billet in response to the fact that the oxide layer on the steel billet meets the descaling condition, wherein the plurality of first liquid spraying components are arranged in the accommodating cavity at intervals along the first direction; in the process that the plurality of first liquid spraying components spray liquid to the steel billet, a plurality of adjusting components in the control adjusting part adjust the pressure and the flow of the liquid sprayed by the first liquid spraying components, wherein the plurality of adjusting components are in one-to-one correspondence with the plurality of first liquid spraying components, and the adjusting components are communicated with the input ends of the first liquid spraying components.

The descaling device provided by the application has the beneficial effects that: compared with the prior art, the descaling device provided by the application has the advantages that the plurality of first liquid spraying components are arranged in the accommodating cavity at intervals along the first direction, and the plurality of adjusting components are correspondingly communicated with the input ends of the plurality of first liquid spraying components, so that the descaling device provided by the application can control the liquid spraying pressure and the liquid spraying flow of the first liquid spraying components through the adjusting components, thereby enabling the descaling device to remove the oxide layer on the steel billet in a targeted manner, reducing the liquid consumption in the descaling process, further avoiding the excessive temperature drop of the steel billet and improving the production quality of the steel billet, and meanwhile, the descaling device provided by the application can increase the liquid spraying pressure and the liquid spraying flow of the first liquid spraying components corresponding to the middle part of the steel billet through the adjusting components, so as to improve the cooling speed of the middle part of the steel billet, and enable the temperature at each position of the steel billet to be uniformly reduced, thereby improving the production quality of hot rolled strip steel.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a descaling device according to an embodiment of the present application;

FIG. 2 is a schematic view of a scale removal apparatus according to another embodiment of the present application;

FIG. 3 is a schematic view of a descaling device according to an embodiment of the present application with parts removed;

FIG. 4 is a schematic view of a first spray assembly with parts removed according to an embodiment of the present application;

FIG. 5 is a control flow chart of a descaling device according to an embodiment of the present application;

Reference numerals related to the above figures are as follows:

10. A case; 11. a receiving chamber;

21. A first spray assembly; 211. a lifting assembly; 2111. a first base; 2112. a guide rail assembly; 21121. a guide rail body; 21122. a screw rod; 21123. a slide block; 21124. a first driving motor; 212. a first rotating assembly; 2121. a second seat body; 2122. a second driving motor; 213. a second rotating assembly; 2131. a third base; 2132. A third driving motor; 214. A first nozzle;

30. A conveying section; 31. A conveyor roller assembly;

40. And a second liquid spraying part.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. Embodiments of the application and features of the embodiments may be combined with each other without conflict. The application will be described in detail below with reference to the drawings in connection with embodiments.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

As described in the background art, hot rolled steel strip refers to a product produced through a process flow of heating, rolling, cooling and the like, in the production process of hot rolled steel strip, the steps of preparing molten iron, roughing, refining, continuous casting, heating steel billet, hot rolling, cooling, finishing and the like are required, during the heating and rolling of steel billet, because the temperature of steel billet is higher, a large amount of iron oxide scale is generated on the surface of steel billet after the steel billet contacts with oxygen in air, the generation of the iron oxide scale can cause metal loss of the hot rolled steel strip, the yield of hot rolling is reduced, meanwhile, the iron oxide scale can cause quality defects such as spots, pits and the like after being pressed into the surface of the hot rolled steel strip, so that the iron oxide scale on the steel billet needs to be removed through a descaling box before the steel billet enters rough rolling and finish rolling, the existing descaling box sprays water to the steel billet uniformly when the steel billet is descaled, and the steel billet can be cooled at the same time. However, the descaling mode can cause the temperature decrease speed in the middle of the steel billet, which is lower than the temperature decrease speed at the edge of the steel billet, so that the production quality of the hot rolled strip steel is affected, and the iron scale cannot be removed in a targeted manner, so that the water resource is wasted, and the temperature decrease of the steel billet is overlarge.

Referring to fig. 1 to 5, in order to solve the above problems, according to an aspect of the present application, there is provided a descaling device for removing an oxide layer on a steel slab, the descaling device including: the liquid spraying device comprises a box body 10, a first liquid spraying part and an adjusting part, wherein a containing cavity 11 is arranged in the box body 10; the first liquid spraying part comprises a plurality of first liquid spraying components 21, and the plurality of first liquid spraying components 21 are arranged in the accommodating cavity 11 at intervals along the first direction and are used for spraying liquid on the steel billet so as to remove an oxide layer on the steel billet; the adjusting part comprises a plurality of adjusting components, the adjusting components are in one-to-one correspondence with the plurality of first liquid spraying components 21, and the adjusting components are communicated with the input end of the first liquid spraying components 21 and are used for adjusting the pressure and flow of liquid sprayed by the first liquid spraying components 21. According to the descaling device provided by the embodiment, the plurality of first liquid spraying components 21 are arranged in the accommodating cavity 11 at intervals along the first direction, the plurality of adjusting components are correspondingly communicated with the input ends of the plurality of first liquid spraying components 21, the liquid spraying pressure and the liquid spraying flow of the first liquid spraying components can be controlled through the adjusting components, so that the descaling device can remove oxide layers on the steel billet in a targeted manner, the liquid consumption in the descaling process is reduced, the excessive temperature drop of the steel billet is avoided, the production quality of the steel billet is improved, meanwhile, the descaling device provided by the embodiment can increase the liquid spraying pressure and the liquid spraying flow of the first liquid spraying components 21 corresponding to the middle part of the steel billet through the adjusting components, the cooling speed of the middle part of the steel billet is improved, the temperature of each position of the steel billet can be uniformly reduced, and the production quality of hot rolled strip steel is further improved.

In an alternative embodiment, the first direction provided in this embodiment is a horizontal direction, and of course, in other embodiments, the first direction provided in this embodiment may be other directions.

In an alternative embodiment, the adjusting component provided in this embodiment is an adjusting valve, and in other embodiments, the adjusting component provided in this embodiment may be other devices that can adjust the pressure and flow of the liquid ejected by the first liquid ejecting component 21.

In an alternative embodiment, the external liquid supply device is capable of providing liquid to the first liquid spray assembly 21 by communicating with the adjustment assembly provided in this embodiment.

Referring to fig. 1 to 3, in a specific embodiment, in order to enable the position adjustment of the billet in the accommodating chamber 11 provided in the present embodiment, the descaling device in the present embodiment further includes a conveying portion 30, where the conveying portion 30 is disposed in the accommodating chamber 11 and extends in the second direction, for conveying the billet. By providing the conveying portion 30 in the accommodating chamber 11 provided in this embodiment, the descaling device provided in this embodiment can convey the billet through the conveying portion 30, and at the same time, by providing the conveying portion 30 provided in this embodiment to extend in the second direction, the billet on the conveying portion 30 can be position-adjusted in the second direction in the accommodating chamber 11 by the conveying portion 30.

In an alternative embodiment, the second direction provided in this embodiment is a horizontal direction perpendicular to the first direction, and of course, in other embodiments, the second direction provided in this embodiment may be other directions.

In an alternative embodiment, the conveying portion 30 provided in this embodiment includes a plurality of conveying roller assemblies 31, where the conveying roller assemblies 31 provided in this embodiment are rotatably mounted in the accommodating cavity 11 and extend along the first direction, and the plurality of conveying roller assemblies 31 are disposed in the accommodating cavity 11 at intervals along the second direction.

In an alternative embodiment, the first liquid spraying portions provided in this embodiment are plural, and the plural first liquid spraying portions are disposed in the accommodating chamber 11 at intervals along the second direction.

In order to improve the descaling effect of the descaling device for the steel billet provided in this embodiment, the descaling device in this embodiment further includes a first detection portion, where the first detection portion is disposed in the accommodating cavity 11 and corresponds to the position of the conveying portion 30, and is configured to detect an oxide layer of the steel billet on the conveying portion 30. By arranging the first detection part in the accommodating cavity 11 provided in the embodiment, and enabling the position of the first detection part to correspond to the position of the conveying part 30, the descaling device provided in the embodiment can detect the oxide layer on the steel billet through the first detection part, so that the first liquid spraying part provided in the embodiment can increase or reduce the liquid spraying pressure and the liquid spraying flow of the corresponding position according to the oxide layer data detected by the first detection part, and the descaling effect of the descaling device provided in the embodiment on the steel billet is effectively improved.

Referring to fig. 1 to 3, in order to improve the descaling efficiency of the descaling device for billets according to the present embodiment, the first spray portion of the descaling device according to the present embodiment is located at a position corresponding to the position of the conveying portion 30, and the descaling device further includes a second spray portion 40, where the second spray portion 40 is disposed in the accommodating cavity 11 and corresponds to the position of the conveying portion 30, for spraying a liquid to the billets to remove an oxide layer on the billets. The descaling device provided in this embodiment, by setting the second liquid spraying portion 40 in the accommodating cavity 11 and making the position of the second liquid spraying portion 40 correspond to the position of the conveying portion 30, enables the descaling device provided in this embodiment to spray liquid onto the steel billet through the first liquid spraying portion and the second liquid spraying portion 40 at the same time, thereby effectively improving the descaling efficiency of the descaling device provided in this embodiment on the steel billet.

In an alternative embodiment, the present embodiment provides a plurality of second liquid spraying portions 40, and the plurality of second liquid spraying portions 40 are disposed in the accommodating chamber 11 at intervals along the second direction.

In an alternative embodiment, the external liquid supply apparatus provided in this embodiment can be in communication with the second liquid spraying portion 40 to supply liquid to the second liquid supply portion.

In a specific embodiment, the first liquid spraying portion and the second liquid spraying portion 40 in this embodiment are respectively located at two sides of the conveying portion 30, the billet on the conveying portion 30 is located between the first liquid spraying portion and the conveying portion 30, the first liquid spraying portion is used for spraying liquid onto a side of the billet away from the conveying portion 30, and the second liquid spraying portion 40 is used for spraying liquid onto a side of the billet close to the conveying portion 30.

Referring to fig. 3 and fig. 4, in a specific embodiment, in order to improve the descaling effect of the first spray assembly 21 provided in this embodiment on the steel billet, the first spray assembly 21 in this embodiment includes a lifting assembly 211 and a first nozzle 214, the lifting assembly 211 is disposed in the accommodating cavity 11, the first nozzle 214 is communicated with the adjusting assembly, an output end of the lifting assembly 211 is in driving connection with the first nozzle 214, and the first nozzle 214 can perform position adjustment in a direction close to or far away from the conveying portion 30 under the driving of the lifting assembly 211. Through setting up lifting unit 211 in holding chamber 11 that this embodiment provided, lifting unit 211's output and first nozzle 214 drive connection, make the first nozzle 214 that this embodiment provided can be under lifting unit 211's drive to be close to or keep away from the direction of conveying portion 30 and carry out the position adjustment, thereby make the descaling device that this embodiment provided can adjust the distance between steel billet and the first nozzle 214 according to the steel billet oxide layer information that first detection portion detected, thereby improve the descaling effect of first hydrojet subassembly 21 that this embodiment provided to the steel billet.

In an alternative embodiment, the lifting assembly 211 provided in this embodiment includes a first base 2111 and a guide rail assembly 2112, where the first base 2111 provided in this embodiment is disposed in the accommodating cavity 11 and is fixedly connected to the box 10, the first guide rail assembly 2112 is mounted on the first base 2111 and extends along a third direction, and the first spray assembly 21 is in driving connection with an output end of the first guide rail assembly 2112.

In an alternative embodiment, the guide rail assembly 2112 provided in this embodiment includes a guide rail body 21121, a slider 21123, a screw 21122 and a first driving motor 21124, where the guide rail body 21121 provided in this embodiment is disposed on the first seat 2111, the slider 21123 is movably mounted on the guide rail body 21121 along a third direction, the screw 21122 is rotatably mounted on the guide rail body 21121 and extends along the third direction, a first threaded hole adapted to the screw 21122 is provided on the slider 21123, the screw 21122 is disposed in the first threaded hole and is engaged with the first threaded hole, the first driving motor 21124 is disposed at an end of the guide rail assembly 2112 and is in driving connection with the screw 21122, the screw 21122 can be driven by the first driving motor 21124, and the rotating screw 21122 can drive the slider 23 to adjust a position relative to the guide rail body 21121 along the third direction.

In a specific embodiment, the slider 21123 provided in this embodiment forms the output end of the track assembly 2112.

In an alternative embodiment, the third direction provided in this embodiment is a vertical direction, and of course, in other embodiments, the third direction provided in this embodiment may be other directions.

Referring to fig. 3 and fig. 4, in a specific embodiment, in order to improve the descaling effect of the first spray assembly 21 provided in this embodiment on the steel billet, the first spray assembly 21 in this embodiment further includes a first rotating assembly 212, the lifting assembly 211 is in driving connection with the first rotating assembly 212, the first rotating assembly 212 is in driving connection with the first nozzle 214, and the first nozzle 214 can rotate along the second direction under the driving of the first rotating assembly 212. Through the driving connection of the lifting assembly 211 and the first rotating assembly 212 provided by the embodiment, and the driving connection of the first rotating assembly 212 and the first nozzle 214 assembly, the descaling device provided by the embodiment can drive the first nozzle 214 through the first rotating assembly 212, so that the first nozzle 214 rotates along the second direction, the spraying angle of the first nozzle 214 is changed, the spraying range of the first nozzle 214 is effectively improved, and the first spray assembly 21 provided by the embodiment can have a better descaling effect.

In an alternative embodiment, the first rotating assembly 212 provided in this embodiment includes a second base 2121 and a second driving motor 2122, the second base 2121 provided in this embodiment is in driving connection with the first slider 21123, the second driving motor 2122 is fixedly mounted on the second base 2121, the first nozzle 214 is pivoted on the second base 2121 and is in driving connection with the second driving motor 2122, the pivot axis between the first nozzle 214 and the second base 2121 provided in this embodiment extends along the second direction, and the first nozzle 214 can rotate along the pivot axis between the first nozzle 214 and the second base 2121 under the driving of the second driving motor 2122.

Referring to fig. 3 and fig. 4, in a specific embodiment, in order to improve the descaling effect of the first spray assembly 21 provided in this embodiment on the steel billet, the first spray assembly 21 in this embodiment further includes a second rotating assembly 213, where the second rotating assembly 213 is disposed at an output end of the lifting assembly 211 and is in driving connection with the first rotating assembly 212, and the first rotating assembly 212 can rotate along the first direction under the driving of the second rotating assembly 213. The second rotating assembly 213 provided in this embodiment is disposed at the output end of the lifting assembly 211, and the second rotating assembly 213 is in driving connection with the first rotating assembly 212, so that the descaling device provided in this embodiment can drive the first rotating assembly 212 through the second rotating assembly 213, so that the first rotating assembly 212 rotates along the first direction, thereby changing the spraying angle of the first nozzle 214 in driving connection with the first rotating assembly 212, and improving the spraying range of the first nozzle 214, so that the first spray assembly 21 provided in this embodiment can have a better descaling effect.

In an alternative embodiment, the second rotating assembly 213 provided in this embodiment includes a third base 2131 and a third driving motor 2132, the third base 2131 provided in this embodiment is fixedly connected to the first slider 21123, the third driving motor 2132 is fixedly installed on the third base 2131, the second base 2121 is pivotally connected to the third base 2131 and is in driving connection with the third driving motor 2132, a pivot axis between the second base 2121 and the third base 2131 provided in this embodiment extends along the first direction, and the second base 2121 can rotate along the pivot axis between the second base 2121 and the third base 2131 under the driving of the third driving motor 2132.

In a specific embodiment, the descaling device further includes a control portion disposed on the case 10 and electrically connected to the first liquid spraying portion, the second liquid spraying portion 40, the adjusting portion, and the first detecting portion, for controlling operations of the first liquid spraying portion, the second liquid spraying portion 40, the adjusting portion, and the first detecting portion. By providing the control portion on the case 10 provided in this embodiment and electrically connecting the control portion with the first liquid ejecting portion, the second liquid ejecting portion 40, the adjusting portion, and the first detecting portion, the descaling device provided in this embodiment can control the operations of the first liquid ejecting portion, the second liquid ejecting portion 40, the adjusting portion, and the first detecting portion by the control portion.

In an alternative embodiment, the descaling device further includes a first surface detecting portion, where the first surface detecting portion is provided in the accommodating cavity 11 and corresponds to the position of the conveying portion 30, and is used for detecting the surface quality of the descaled billet.

In an alternative embodiment, the hot strip production facility provided in this embodiment is used to process billets into hot strip products.

In an alternative embodiment, the hot rolled strip production apparatus provided in this embodiment includes a frame and a second surface detecting portion, where the second surface detecting portion provided in this embodiment is disposed on the frame, and is used for detecting a surface quality of a hot rolled strip product.

In a specific embodiment, the detection of the surface quality of the steel slab and the surface quality of the hot rolled strip product can be evaluated and controlled by visual inspection, instrumental detection, experimental testing, and the like.

In an optional embodiment, the hot rolled strip steel production equipment provided by the embodiment further comprises an air cooling part and an alarm part, wherein the air cooling part and the alarm part are arranged on the frame, the alarm part is electrically connected with the air cooling part, various abnormal conditions of the air cooling part are warned and reminded, and the hot rolled strip steel production equipment can cool through the air cooling part.

Referring to fig. 1 to 5, according to still another aspect of the present application, there is provided a control method of a descaling device, applied to the above-mentioned descaling device, the method comprising: s101, controlling a plurality of first liquid spraying components 21 in a first liquid spraying part to spray liquid to the steel billet so as to remove the oxide layer on the steel billet in response to the fact that the oxide layer on the steel billet meets the descaling condition, wherein the plurality of first liquid spraying components 21 are arranged in the accommodating cavity at intervals along a first direction; s103, in the process of spraying liquid to the steel billets by the plurality of first liquid spraying components 21, controlling the plurality of regulating components in the regulating part to regulate the pressure and flow of the liquid sprayed by the first liquid spraying components 21, wherein the plurality of regulating components are in one-to-one correspondence with the plurality of first liquid spraying components 21, and the regulating components are communicated with the input ends of the first liquid spraying components 21.

In an alternative embodiment, the hot rolled strip steel generating apparatus provided in this embodiment further includes a control terminal, where the control terminal is electrically connected to the control unit, the first surface detecting unit, the second surface detecting unit, and the alarm unit, and the control terminal is capable of controlling operations of the control unit, the first surface detecting unit, the second surface detecting unit, and the alarm unit. In an optional embodiment, a database is provided in the control terminal provided in this embodiment, where the database includes data such as steel grade, component, specification, heating process (heating temperature, heating time), gas in the heating furnace, rolling process, temperature system, specification, standard contrast pictures of each detection point, and the control unit can control the first liquid spraying unit, the second liquid spraying unit, and the adjusting unit according to the data in the database.

In an alternative embodiment, in the process of producing the hot rolled steel strip, the hot rolled steel strip production device provided by the embodiment can detect the surface quality of the steel billet after descaling through the first surface detection part, upload the detection result to the control terminal, detect the surface quality of the hot rolled steel strip product through the second surface detection part, upload the detection result to the control terminal, and collect and compare the surface quality data of the steel billet after descaling under different descaling parameters and the surface quality data of the hot rolled steel strip product, so that the parameter optimization of the descaling device can be facilitated.

In a specific embodiment, when the descaling device provided in this embodiment is used to descale a steel billet, the descaling device provided in this embodiment firstly calls data in the control terminal database through the control portion, and controls the lifting component 211 in the first spray assembly 21 according to the data in the database, so that the distance between the first nozzle 214 and the conveying portion 30 is adapted to the steel billet, then the steel billet can be conveyed into the accommodating cavity through the conveying portion 30, after the steel billet is conveyed into the accommodating cavity, the first detection portion detects the oxide layer of the steel billet on the conveying portion 30 in real time, and sends the detected oxide layer data to the control portion, and the control portion can determine whether the oxide layer on the basis of the oxide layer data detected by the first detection portion meets the descaling condition, if the descaling condition is met, control the plurality of first spray assemblies 21 in the first spray assembly 21 to spray liquid, in the process of spraying the liquid to the steel billet, and the control portion can spray the angle of the first spray liquid according to the oxide layer on each position, and the corresponding to the first spray liquid spray assembly 21, and the spray the angle of the first spray liquid to the first spray liquid spray assembly 21 to the first spray liquid to the first spray liquid to the first spray layer 21 according to the first spray liquid.

In an alternative embodiment, the descaling device provided in this embodiment further includes a second detecting portion, where the second detecting portion is disposed in the accommodating cavity and is electrically connected to the control portion, and is configured to detect the temperature of the steel billet on the conveying portion 30 in real time.

In an alternative embodiment, in the process of using the descaling device provided in this embodiment to perform descaling on a steel billet, the descaling device provided in this embodiment can detect, through the second detection portion, the temperature of the steel billet on the conveying portion 30 in real time, and send the detected temperature data to the control portion, and the control portion can control, through the received temperature data, the plurality of adjustment assemblies in the adjustment portion, so that the spray flow rate of the first spray assembly 21 corresponding to the position on the steel billet with a higher temperature becomes larger, and the spray flow rate of the first spray assembly 21 corresponding to the position on the steel billet with a lower temperature becomes smaller, so that the steel billet can be cooled uniformly.

In an alternative embodiment, the first detecting portion provided in this embodiment is a gloss detecting device, and because the difference in gloss between the position with the oxide layer on the billet and the position where the oxide layer falls off is large, the position with the oxide layer and the position where the oxide layer falls off can be effectively distinguished by the gloss detecting device, so that the control portion can perform the first spraying portion and the adjusting portion according to the gloss data detected by the gloss detecting device, and the first spraying portion can remove the oxide layer in a targeted manner.

In summary, implementing the descaling device and the hot rolled strip steel production equipment provided by the embodiment has at least the following beneficial technical effects: according to the descaling device provided by the embodiment, the plurality of first liquid spraying components 21 are arranged in the accommodating cavity 11 at intervals along the first direction, the plurality of adjusting components are correspondingly communicated with the input ends of the plurality of first liquid spraying components 21, the liquid spraying pressure and the liquid spraying flow of the first liquid spraying components can be controlled through the adjusting components, so that the descaling device can remove oxide layers on the steel billet in a targeted manner, the liquid consumption in the descaling process is reduced, the excessive temperature drop of the steel billet is avoided, the production quality of the steel billet is improved, meanwhile, the descaling device provided by the embodiment can increase the liquid spraying pressure and the liquid spraying flow of the first liquid spraying components 21 corresponding to the middle part of the steel billet through the adjusting components, the cooling speed of the middle part of the steel billet is improved, the temperature of each position of the steel billet can be uniformly reduced, and the production quality of hot rolled strip steel is further improved.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims

1. A descaling device for removing an oxide layer from a steel slab, the descaling device comprising:

The box body (10), the box body (10) is internally provided with a containing cavity (11);

The first liquid spraying part comprises a plurality of first liquid spraying components (21), and the plurality of first liquid spraying components (21) are arranged in the accommodating cavity (11) at intervals along a first direction and are used for spraying liquid onto the steel billet so as to remove an oxidation layer on the steel billet;

The adjusting part comprises a plurality of adjusting components, the adjusting components are in one-to-one correspondence with the first liquid spraying components (21), and the adjusting components are communicated with the input ends of the first liquid spraying components (21) and are used for adjusting the pressure and flow of liquid sprayed by the first liquid spraying components (21).

2. A descaling device according to claim 1, further comprising a conveying portion (30), the conveying portion (30) being arranged in the housing cavity (11) and extending in a second direction for conveying the steel billet.

3. The descaling device according to claim 2, further comprising a first detection portion arranged in the housing chamber (11) in correspondence with the position of the delivery portion (30) for detecting the oxidation layer of the billet on the delivery portion (30).

4. A descaling device according to claim 3, wherein the first liquid spraying portion is positioned corresponding to the position of the conveying portion (30), and the descaling device further comprises a second liquid spraying portion (40), the second liquid spraying portion (40) being disposed in the accommodating chamber (11) and corresponding to the position of the conveying portion (30) for spraying liquid to the billet to remove the oxide layer on the billet.

5. The descaling device according to claim 4, wherein the first liquid spraying portion and the second liquid spraying portion (40) are respectively located at both sides of the conveying portion (30), the billet on the conveying portion (30) is located between the first liquid spraying portion for spraying liquid onto a side of the billet remote from the conveying portion (30), and the second liquid spraying portion (40) is for spraying liquid onto a side of the billet close to the conveying portion (30).

6. The descaling device according to any one of claims 2 to 5, wherein the first spray assembly (21) comprises a lifting assembly (211) and a first nozzle (214), the lifting assembly (211) is disposed in the accommodating cavity (11), the first nozzle (214) is communicated with the adjusting assembly, an output end of the lifting assembly (211) is in driving connection with the first nozzle (214), and the first nozzle (214) can be driven by the lifting assembly (211) to perform position adjustment in a direction approaching or separating from the conveying part (30);

the first liquid spraying assembly (21) further comprises a first rotating assembly (212), the lifting assembly (211) is in driving connection with the first rotating assembly (212), the first rotating assembly (212) is in driving connection with the first nozzle (214), and the first nozzle (214) can rotate along the second direction under the driving of the first rotating assembly (212).

7. The descaling device according to claim 6, wherein the first spray assembly (21) further comprises a second rotating assembly (213), the second rotating assembly (213) is disposed on the output end of the lifting assembly (211) and is in driving connection with the first rotating assembly (212), and the first rotating assembly (212) is capable of rotating in the first direction under the driving of the second rotating assembly (213).

8. The descaling device according to claim 4, further comprising a control unit disposed on the case (10) and electrically connected to the first liquid ejecting unit, the second liquid ejecting unit (40), the adjusting unit, and the first detecting unit, for controlling operations of the first liquid ejecting unit, the second liquid ejecting unit (40), the adjusting unit, and the first detecting unit.

9. A hot-rolled steel strip production apparatus, characterized in that the hot-rolled steel strip production apparatus comprises a descaling device as defined in any one of claims 1 to 8.

10. A descaling control method, applied to the descaling apparatus according to any one of claims 1 to8, comprising:

Controlling a plurality of first spray assemblies (21) in a first spray part to spray liquid to the steel billet to remove the oxide layer on the steel billet in response to the fact that the oxide layer on the steel billet meets the descaling condition, wherein the first spray assemblies (21) are arranged in the accommodating cavity at intervals along a first direction;

In the process of spraying liquid to the steel billets by the first liquid spraying components (21), controlling the regulating components in the regulating part to regulate the pressure and flow of the liquid sprayed by the first liquid spraying components (21), wherein the regulating components are in one-to-one correspondence with the first liquid spraying components (21), and the regulating components are communicated with the input ends of the first liquid spraying components (21).