阅读说明：本技术 一种热轧降尘控制系统及控制方法 (Hot rolling dust fall control system and control method ) 是由 熊雯 姚红武 郑小强 张健民 黄东 陈一峰 赵雪松 陈燕才 于 2020-06-28 设计创作，主要内容包括：本发明公开了一种热轧降尘系统及控制方法,其中系统包括：一级雾化除尘模块、二级雾化除尘模块、三级负压吸尘模块以及前馈浓度检测模块；一级雾化除尘模块,用于在轧机启动时,启动除尘；二级雾化除尘模块,用于在前馈浓度检测模块检测到粉尘浓度大于预设的标准浓度时,启动除尘；三级负压吸尘模块,用于在二级雾化除尘模块工作后,且前馈浓度检测模块检测到粉尘浓度大于标准浓度时,启动除尘。本发明可对轧机轧制过程产生的微细粉尘进行有效的控制,并且具有较低的设备成本和维护成本。(The invention discloses a hot rolling dust fall system and a control method, wherein the system comprises: the device comprises a first-stage atomization dust removal module, a second-stage atomization dust removal module, a third-stage negative pressure dust collection module and a feedforward concentration detection module; the primary atomization dust removal module is used for starting dust removal when the rolling mill is started; the second-stage atomization dust removal module is used for starting dust removal when the feed-forward concentration detection module detects that the dust concentration is greater than a preset standard concentration; and the third-stage negative pressure dust collection module is used for starting dust collection when the second-stage atomization dust collection module works and the feedforward concentration detection module detects that the dust concentration is greater than the standard concentration. The invention can effectively control the fine dust generated in the rolling process of the rolling mill and has lower equipment cost and maintenance cost.)

1. A hot rolling dust fall system, its characterized in that includes: the device comprises a first-stage atomization dust removal module, a second-stage atomization dust removal module, a third-stage negative pressure dust collection module and a feedforward concentration detection module; the first-stage atomization dust removal module is respectively arranged at the first end of the rolling mill inlet guide position and the first end of the rolling mill outlet guide position, and the second-stage atomization dust removal module is respectively arranged at the second end of the rolling mill inlet guide position and the second end of the rolling mill outlet guide position; the first end is the end far away from the roller, and the second end is the end close to the roller; the three-stage negative pressure dust collection module is respectively arranged at the second end of the mill inlet guide position and the second end of the mill outlet guide position; the feed-forward concentration detection module is respectively arranged at the side edges of the rolling mill inlet guide position and the rolling mill outlet guide position, and is positioned at the inner side of the primary atomization dust removal module, and the inner side is close to one side of the roller;

the primary atomization dust removal module is used for starting dust removal when the rolling mill is started;

the second-stage atomization dust removal module is used for starting dust removal when the feed-forward concentration detection module detects that the dust concentration is greater than a preset standard concentration;

and the third-level negative pressure dust collection module is used for starting dust collection after the second-level atomization dust collection module works and when the feed-forward concentration detection module detects that the dust concentration is greater than the standard concentration.

2. The system of claim 1, further comprising: the feedback concentration detection module is respectively arranged at the side edges of the rolling mill inlet guide position and the rolling mill outlet guide position, is positioned at the outer side of the primary atomization dust removal module, and is far away from one side of the roller;

and the primary atomization dust removal module is also used for adjusting the flow of the dust removal water to the maximum when the feedback concentration detection module detects that the dust concentration is greater than the standard concentration.

3. The system of claim 2, wherein the secondary atomization dust removal module is further configured to adjust the flow of the dust removal water to a maximum value when the feedback concentration detection module detects that the dust concentration is greater than the standard concentration.

4. The system of any one of claims 2 or 3, wherein the three-stage negative pressure dust collection module is further configured to adjust the rotation speed of the dust removal fan to the maximum when the feedback concentration detection module detects that the dust concentration is greater than the standard concentration.

5. The system of claim 4, further comprising: an adaptation module to:

when the feed-forward concentration detection module and the feedback concentration detection module both detect that the dust concentration is greater than the standard concentration, starting flow self-learning based on an original genetic coefficient, a coiling temperature variation, a header flow, a post-calculation temperature and a current actual temperature to obtain a new genetic coefficient; wherein the original genetic coefficient is a water flow control coefficient of the primary atomization dust removal module;

and modifying the original genetic coefficient into the new genetic coefficient so as to increase the water flow of the primary atomization dust removal module during working.

6. The system of claim 5, wherein the adaptation module is specifically configured to:

obtaining a residual sensing value based on K ═ Δ C/Δ Q; wherein K is a residual sensing value, delta C is a coiling temperature variation, and delta Q is a flow of the collecting pipe;

based on Q_new＝Q_old+(Cn-C_act) K, obtaining a calculated genetic coefficient; wherein Q is_newTo calculate the genetic coefficient, Q_oldCalculating dust concentration after Cn as original genetic coefficient, C_actIs the current actual dust concentration.

Based on Q' ═ (1- β) × Q_old+β×Q_newAnd correcting the calculated genetic coefficient to obtain a new genetic coefficient, wherein Q' is the new genetic coefficient, and β is the weight.

7. The system of claim 1, wherein the primary atomizing and dust removal module comprises: a header and a plurality of atomizing nozzles connected to the header.

8. The system of claim 1, wherein the system is used for dedusting dust having a diameter of 5-80 μm.

9. A hot rolling dust fall control method applied to the system of any one of claims 1 to 8, the method comprising:

starting the primary atomization dust removal module to remove dust;

detecting the dust concentration through the feed-forward concentration detection module to obtain a first dust concentration;

when the first dust concentration is greater than a preset standard concentration, starting the secondary atomization dust removal module to remove dust;

detecting the dust concentration through the feed-forward concentration detection module to obtain a second dust concentration;

and when the second dust concentration is greater than the preset standard concentration, starting the three-stage negative pressure dust collection module to remove dust.

10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method as claimed in claim 9.

Technical Field

The invention relates to the technical field of computers, in particular to a hot rolling dust fall control system and a control method.

Background

With the rapid development of the industry, part of industrial cities face huge environmental protection pressure, and the PM2.5 of the urban atmosphere is getting worse. The dust concentration of hot-rolled strip steel factory is 5-80 μm, the median of particle diameter is 20-30 μm, and mainly comes from iron scale dust generated in rolling process of rolling mill, and the main component comprises Fe₂O₃FeO, Si, C, S, etc. The fine dust with the particle size of less than 10 mu m is easy to breathe by a human body, enters the lung of the human body and damages the health of the human body, and the fine dust can not be taken away by a fan or other modes. The current mature dust removal methods can be roughly divided into dry electric dust removal and wet dust removal. The electrostatic dust collection needs to provide related equipment such as a high-voltage direct current power supply unit, a dust rapping device and the like, the early investment and the later operating cost are high, and the requirements on the installation conditions of field dust collection equipment are also high. The wet dust removal mainly uses water level medium to adsorb dust, but the dust which is not captured is easy to adhere to a component under a humid condition, so that the phenomenon of corroding the structure is caused, the service life of the component is reduced, and the surface quality of a product is polluted. However, wet dust removal has another problem in that water and dust are easily attached to the rolling mill components after being combined, which causes defects such as iron scales and the like, and also causes the outer surface of the rolling mill to be dirty.

In summary, the existing dust fall scheme of the hot rolling production line has the defects of high equipment cost, difficulty in processing fine dust and easiness in generating iron sheet dust.

Disclosure of Invention

In view of the above problems, the present invention provides a hot rolling dust fall control system and a control method thereof, which can effectively control the fine dust generated in the rolling process of the rolling mill and have low equipment cost and maintenance cost.

In a first aspect, the present application provides the following technical solutions through an embodiment of the present application:

a hot rolling dust fall system, comprising: the device comprises a first-stage atomization dust removal module, a second-stage atomization dust removal module, a third-stage negative pressure dust collection module and a feedforward concentration detection module; the first-stage atomization dust removal module is respectively arranged at the first end of the rolling mill inlet guide position and the first end of the rolling mill outlet guide position, and the second-stage atomization dust removal module is respectively arranged at the second end of the rolling mill inlet guide position and the second end of the rolling mill outlet guide position; the first end is the end far away from the roller, and the second end is the end close to the roller; the three-stage negative pressure dust collection module is respectively arranged at the second end of the mill inlet guide position and the second end of the mill outlet guide position; the feed-forward concentration detection module is respectively arranged at the side edges of the rolling mill inlet guide position and the rolling mill outlet guide position, and is positioned at the inner side of the primary atomization dust removal module, and the inner side is close to one side of the roller;

the primary atomization dust removal module is used for starting dust removal when the rolling mill is started;

the second-stage atomization dust removal module is used for starting dust removal when the feed-forward concentration detection module detects that the dust concentration is greater than a preset standard concentration;

and the third-level negative pressure dust collection module is used for starting dust collection after the second-level atomization dust collection module works and when the feed-forward concentration detection module detects that the dust concentration is greater than the standard concentration.

Optionally, the method further includes: the feedback concentration detection module is respectively arranged at the side edges of the rolling mill inlet guide position and the rolling mill outlet guide position, is positioned at the outer side of the primary atomization dust removal module, and is far away from one side of the roller;

and the primary atomization dust removal module is also used for adjusting the flow of the dust removal water to the maximum when the feedback concentration detection module detects that the dust concentration is greater than the standard concentration.

Optionally, the second-stage atomization dust removal module is further configured to adjust the flow rate of the dust removal to the maximum when the feedback concentration detection module detects that the dust concentration is greater than the standard concentration.

Optionally, the three-stage negative pressure dust collection module is further configured to adjust the rotation speed of the dust removal fan to the maximum when the feedback concentration detection module detects that the dust concentration is greater than the standard concentration.

Optionally, the method further includes: an adaptation module to:

when the feed-forward concentration detection module and the feedback concentration detection module both detect that the dust concentration is greater than the standard concentration, starting flow self-learning based on an original genetic coefficient, a coiling temperature variation, a header flow, a post-calculation temperature and a current actual temperature to obtain a new genetic coefficient; wherein the original genetic coefficient is a water flow control coefficient of the primary atomization dust removal module;

and modifying the original genetic coefficient into the new genetic coefficient so as to increase the water flow of the primary atomization dust removal module during working.

Optionally, the adaptive module is specifically configured to:

obtaining a residual sensing value based on K ═ Δ C/Δ Q; wherein K is a residual sensing value, delta C is a coiling temperature variation, and delta Q is a flow of the collecting pipe;

based on Q_new＝Q_old+(Cn-C_act) K, obtaining a calculated genetic coefficient; wherein Q is_newTo calculate the genetic coefficient, Q_oldCalculating dust concentration after Cn as original genetic coefficient, C_actIs the current actual dust concentration.

Based on Q' ═ (1- β) × Q_old+β×Q_newAnd correcting the calculated genetic coefficient to obtain a new genetic coefficient, wherein Q' is the new genetic coefficient, and β is the weight.

Optionally, the primary atomizing and dust removing module includes: a header and a plurality of atomizing nozzles connected to the header.

Optionally, the system is used for dedusting dust with a diameter of 5-80 μm.

In a second aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment of the present application:

a hot rolling dust fall control method applied to the system according to any one of the first aspect, the method comprising:

starting the primary atomization dust removal module to remove dust;

detecting the dust concentration through the feed-forward concentration detection module to obtain a first dust concentration;

when the first dust concentration is greater than a preset standard concentration, starting the secondary atomization dust removal module to remove dust;

detecting the dust concentration through the feed-forward concentration detection module to obtain a second dust concentration;

and when the second dust concentration is greater than the preset standard concentration, starting the three-stage negative pressure dust collection module to remove dust.

In a third aspect, based on the same inventive concept, the present application provides the following technical solutions through an embodiment of the present application:

a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of the second aspect as set forth above.

The embodiment of the invention provides a hot rolling dust-settling system and a control method, wherein a first-stage atomization dust-removing module of the system is respectively arranged at a first end of a rolling mill inlet guide position and a first end of a rolling mill outlet guide position, and a second-stage atomization dust-removing module is respectively arranged at a second end of the rolling mill inlet guide position and a second end of the rolling mill outlet guide position; the first end is the one end of keeping away from the roll, and the second end is the one end that is close to the roll, can avoid influencing dust removal quality when removing dust like this. Further, the three-stage negative pressure dust collection module is respectively arranged at the second end of the mill inlet guide position and the second end of the mill outlet guide position; and the dust is prevented from overflowing. The feed-forward concentration detection module is respectively arranged at the side edges of the rolling mill inlet guide position and the rolling mill outlet guide position, the feed-forward concentration detection module is positioned at the inner side of the first-stage atomization dust removal module, and the inner side is close to one side of the roller, so that the detection dust concentration which can be accurately detected by the feed-forward concentration detection module is ensured. Further, the primary atomization dust removal module is used for starting dust removal when the rolling mill is started; the second-stage atomization dust removal module is used for starting dust removal when the feed-forward concentration detection module detects that the dust concentration is greater than a preset standard concentration; and the third-stage negative pressure dust collection module is used for starting dust collection when the second-stage atomization dust collection module works and the feedforward concentration detection module detects that the dust concentration is greater than the standard concentration. According to the invention, the dust removal effect of fine dust generated by rolling of a rolling mill can be ensured under the condition that the rolling of a roller is less influenced by the arrangement positions of the primary atomizing dust removal module, the secondary atomizing dust removal module and the tertiary dust removal module and the sequence of starting dust removal, and the generation of iron sheet dust is avoided; meanwhile, the system is simple in structure and is set based on the existing mill outlet guide position and the existing mill inlet guide position, new adding structures are reduced, and equipment cost and maintenance cost are reduced.

The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 shows a schematic block structure diagram of a hot rolling dust suppression system according to a first embodiment of the present invention;

fig. 2 is a schematic view illustrating an installation structure of functional structural parts of a hot rolling dust suppression system according to a first embodiment of the present invention;

FIG. 3 is a schematic structural view of a nozzle part of the primary atomizing dust-removing module in the first embodiment of the present invention;

fig. 4 shows a flowchart of a method for controlling dust fall in hot rolling according to a second embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

First embodiment

Referring to fig. 1 and fig. 2, fig. 1 is a schematic block diagram illustrating a hot rolling dust settling system 10 according to a first embodiment of the present invention; fig. 2 is a schematic diagram illustrating an installation structure of functional structural parts of a hot rolling dust suppression system 10 according to a first embodiment of the present invention, and a software control part is not shown. The system 10 includes: the device comprises a first-stage atomization dust removal module 11, a second-stage atomization dust removal module 12, a third-stage negative pressure dust collection module 13 and a feedforward concentration detection module 14.

Specifically, the primary atomizing and dust removing module 11 is respectively arranged at a first end of a rolling mill inlet guide position 30 and a first end of a rolling mill outlet guide position 31, and the secondary atomizing and dust removing module 12 is respectively arranged at a second end of the rolling mill inlet guide position 30 and a second end of the rolling mill outlet guide position 31; the first end is the end far away from the roller, and the second end is the end close to the roller; the three-stage negative pressure dust collection module 13 is respectively arranged at the second end of the mill inlet guide position 30 and the second end of the mill outlet guide position 31; the feed-forward concentration detection module 14 is respectively arranged at the side edges of the rolling mill inlet guide position 30 and the rolling mill outlet guide position 31, and the feed-forward concentration detection module 14 is positioned at the inner side of the primary atomization dust removal module 11, and the inner side is the side close to the roller.

Further, fig. 2 also shows a phosphorus removal unit 32 between the stands and a hydraulic cylinder guide 33 of the mill inlet guide 30, wherein the rolling direction is below the mill inlet guide 30 and the mill outlet guide 31, and the position of the mill roll is between the mill inlet guide 30 and the mill outlet guide 31.

The dust generated at the roller position of the rolling mill will diffuse outwards along the inlet guide or the outlet guide, so in this embodiment, the first end of the inlet guide 30 and the first end of the outlet guide 31 of the rolling mill of the primary atomizing dust-removing module 11 can improve the dust-removing effect. The secondary atomizing and dust removing module 12 is respectively arranged at the second end of the mill inlet guide position 30 and the second end of the mill outlet guide position 31, and the distance between the secondary atomizing and dust removing module and the dust source head can be more effectively controlled. The arrangement position of the three-level negative pressure dust collection module 13 can ensure that when the first-level and second-level atomization dust collection modules 12 cannot control dust, negative pressure is generated to avoid dust diffusion and iron sheet dust generation. The dust generated at the position of the roller is diffused along the inlet/outlet guide position and overflows from two sides, so that the concentration of the dust overflowing can be effectively detected by arranging the feed-forward concentration detection module 14 at the side edges of the inlet guide position 30 and the outlet guide position 31 of the rolling mill, the actual concentration of the dust can be accurately controlled, and air pollution of a workshop is avoided.

The working process of the system comprises the following steps: the primary atomization dust removal module 11 is used for starting dust removal when the rolling mill is started; the secondary atomization dust removal module 12 is used for starting dust removal when the feed-forward concentration detection module 14 detects that the dust concentration is greater than a preset standard concentration; and the third-stage negative pressure dust collection module 13 is used for starting dust collection after the second-stage atomization dust collection module 12 works and when the feed-forward concentration detection module 14 detects that the dust concentration is greater than the standard concentration. Through the process, the first-stage atomization dust removal module 11, the second-stage atomization dust removal module 12 and the third-stage negative pressure dust collection module 13 can be started in sequence according to the dust concentration condition. Because the first-level atomizing and dust removing module 11 is farthest away from the roller, the influence on the roller is minimum when the first-level atomizing and dust removing module works, the influence on the temperature and the rolling precision of a steel plate caused by the fact that rolling impurities, water vapor, dust and the like are diffused to the steel plate below the roller can be avoided, and finally the third-level negative pressure dust collecting module 13 is started to control the energy consumption of the system to be at a lower level.

Further, the method also comprises the following steps: the feedback concentration detection module 15, the feedback concentration detection module 15 sets up respectively at the side edge of rolling mill entry guide position 30 and rolling mill export guide position 31, and the feedback concentration detection module 15 is located the outside of one-level atomizing dust removal module 11, and the outside is for keeping away from one side of roll. Because the dust is diffused outwards from the roller, the feedback concentration detection module 15 can detect the dust concentration outside the primary atomizing and dust removing module 11 after the primary atomizing and dust removing module 11 starts to remove dust.

If the feedback concentration detection module 15 detects that the dust concentration is greater than the standard concentration, it indicates that the dust removal effect of the first-stage atomization dust removal module 11 is not good enough, and the predetermined effect cannot be achieved. At this time, the primary atomizing and dust removing module 11 can adjust the water flow rate for removing dust to the maximum to enhance the dust removing effect.

Further, the feedback concentration detection module 15 continues to detect the dust concentration, and if the dust concentration is still greater than the standard concentration, the secondary atomization dust removal module 12 adjusts the water flow rate for removing dust to the maximum.

In addition, in this embodiment, if the rolling quality is ensured, the third-stage negative pressure dust collection module 13 adjusts the rotation speed of the fan for removing dust to the maximum after the first-stage atomization dust collection module 11 adjusts the water flow to the maximum and the feedback concentration detection module 15 detects that the dust concentration is greater than the standard concentration; when the third-stage negative pressure dust collection module 13 adjusts the rotating speed of the dedusting fan to the maximum, and the feedback concentration detection module 15 detects that the dust concentration is still greater than the standard concentration, the second-stage atomization dust collection module 12 adjusts the water flow to the maximum.

If the water flow is adjusted to the maximum by the second-stage atomization dust removal module 12 and the dust concentration detected by the feedback concentration detection module 15 is greater than the standard concentration, the third-stage negative pressure dust collection module 13 adjusts the rotation speed of the fan for dust removal to the maximum.

In this embodiment, another control logic is provided that prioritizes the quality of the rolled product. Specifically, the three-stage negative pressure dust collection module 13 is configured to start dust collection when the feed-forward concentration detection module 14 detects that the dust concentration is greater than the standard concentration after the first-stage atomization dust collection module 11 works. And the second-stage atomization dust removal module 12 is used for starting dust removal after the third-stage atomization dust removal module works and when the feed-forward concentration detection module 14 detects that the dust concentration is greater than a preset standard concentration. Therefore, the two atomizing and dust removing modules can be controlled to be started finally, and the influence of the two atomizing and dust removing modules on the rolling quality is avoided.

As shown in FIG. 3, the spraying dust-removing section of the primary atomizing dust-removing module 11 canA plurality of atomizing nozzles 201 are connected by a manifold 202, and water is supplied through a water inlet 203. Similarly, the secondary atomizing dust-removing module 12 can also be realized by connecting a plurality of atomizing nozzles with a header. The realization of simple structure, low cost and failure rate are guaranteed. The system in the embodiment can effectively remove and control fine dust below 10 microns by spraying and dedusting through the primary atomizing and dedusting module 11 and the secondary atomizing and dedusting module 12. Then, the dust larger than 10um can be effectively dedusted by the fan through the three-level negative pressure dust-collecting module 13, for example, Fe with 20-30 μm can be effectively controlled₂O₃And dust of FeO, Si, C, S, etc. Therefore, the system of the present embodiment can be applied to control the particle size of the dust of 5 μm to 80 μm.

Because the positions of the mill outlet guide 31 and the mill inlet guide 30 have higher working temperatures, and the nozzles of the primary/secondary atomizing and dust removing module 12 are easy to wear and age, in this embodiment, a self-adaptive module is further provided for optimally controlling the sprayed water flow to compensate for the performance reduction caused by the aging of the primary or secondary atomizing and dust removing module 12. The working performance of the hot rolling dust-settling system 10 is ensured, the replacement frequency of easily aged components such as nozzles is reduced, and the cost control is realized within a certain water flow range.

Specifically, the adaptation module is configured to: when the feed-forward concentration detection module 14 and the feedback concentration detection module 15 both detect that the dust concentration is greater than the standard concentration, starting self-learning based on the original genetic coefficient, the coiling temperature variation, the flow of the collecting pipe, the post-calculation temperature and the current actual temperature to obtain a new genetic coefficient; wherein, the original genetic coefficient is a water flow control coefficient of the primary atomizing and dust removing module 11; and modifying the original genetic coefficient into a new genetic coefficient so as to increase the water flow of the primary atomizing and dust removing module 11 during working. Further, the adaptation module is specifically configured to: obtaining a residual sensing value based on K ═ Δ C/Δ Q; wherein K is a residual sensing value, delta C is a coiling temperature variation, and delta Q is a flow of the collecting pipe; based on Q_new＝Q_old+(Cn-C_act) K, obtaining a calculated genetic coefficient; wherein Q is_newTo calculate the genetic coefficient, Q_oldCalculating dust concentration after Cn as original genetic coefficient, C_actBased on Q' ═ (1- β) × Q for the current actual dust concentration_old+β×Q_newAnd correcting the calculated genetic coefficient to obtain a new genetic coefficient, wherein Q' is the new genetic coefficient, β is the weight, and the calculated dust concentration can be measured by a feedback concentration detection module.

It should be noted that the first-stage atomizing and dust-removing module 11, the second-stage atomizing and dust-removing module 12, the third-stage negative pressure dust-collecting module 13, the feed-forward concentration detection module 14, the feedback concentration detection module 15, and the self-adapting module in this embodiment all have corresponding processors for performing command control, and each module may correspond to different processors, or may use one processor.

In summary, in the hot rolling dust fall system provided in this embodiment, the primary atomizing and dust removing module is respectively disposed at the first end of the mill inlet guide and the first end of the mill outlet guide, and the secondary atomizing and dust removing module is respectively disposed at the second end of the mill inlet guide and the second end of the mill outlet guide; the first end is the one end of keeping away from the roll, and the second end is the one end that is close to the roll, can avoid influencing dust removal quality when removing dust like this. Further, the three-stage negative pressure dust collection module is respectively arranged at the second end of the mill inlet guide position and the second end of the mill outlet guide position; and the dust is prevented from overflowing. The feed-forward concentration detection module is respectively arranged at the side edges of the rolling mill inlet guide position and the rolling mill outlet guide position, the feed-forward concentration detection module is positioned at the inner side of the first-stage atomization dust removal module, and the inner side is close to one side of the roller, so that the detection dust concentration which can be accurately detected by the feed-forward concentration detection module is ensured. Further, the primary atomization dust removal module is used for starting dust removal when the rolling mill is started; the second-stage atomization dust removal module is used for starting dust removal when the feed-forward concentration detection module detects that the dust concentration is greater than a preset standard concentration; and the third-stage negative pressure dust collection module is used for starting dust collection when the second-stage atomization dust collection module works and the feedforward concentration detection module detects that the dust concentration is greater than the standard concentration. The dust removal effect of fine dust can be ensured and the generation of iron sheet dust can be avoided under the condition that the rolling of the roller is less influenced by the arrangement positions of the first-stage atomization dust removal module, the second-stage atomization dust removal module and the third-stage dust removal module and the sequence of starting dust removal; meanwhile, the system is simple in structure and is set based on the existing mill outlet guide position and the existing mill inlet guide position, new adding structures are reduced, and equipment cost and maintenance cost are reduced.

Second embodiment

Referring to fig. 4, based on the same inventive concept, a second embodiment of the present invention provides a hot rolling dust fall control method, which is applicable to any one of the systems described in the first embodiment. The method comprises the following steps:

step S10: starting the primary atomization dust removal module to remove dust;

step S20: detecting the dust concentration through the feed-forward concentration detection module to obtain a first dust concentration;

step S30: when the first dust concentration is greater than a preset standard concentration, starting the secondary atomization dust removal module to remove dust;

step S40: detecting the dust concentration through the feed-forward concentration detection module to obtain a second dust concentration;

step S50: and when the second dust concentration is greater than the preset standard concentration, starting the three-stage negative pressure dust collection module to remove dust.

It should be noted that, in the hot rolling dust fall control method provided in the embodiment of the present invention, reference may be made to the foregoing system embodiment for controlling the working processes of the primary atomizing and dust removing module, the secondary atomizing and dust removing module, the tertiary negative pressure dust collecting module, the feed-forward concentration detecting module, and the adaptive module.

The device-integrated functional modules provided by the present invention may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, all or part of the flow of the method of implementing the above embodiments may also be implemented by a computer program, which may be stored in a computer readable storage medium and used by a processor to implement the steps of the above embodiments of the method. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.

The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components in a system according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.