CN114985475A - Method and device for controlling tapping rhythm of heating furnace - Google Patents

Abstract

The invention relates to the technical field of heating furnace control, in particular to a method and a device for controlling the tapping rhythm of a heating furnace, wherein the method is applied to a control system of a plurality of heating furnaces, the plurality of heating furnaces are sequentially arranged along the direction of a roller way, a plate blank reaches the roller way after tapping from the heating furnace and reaches a rough rolling inlet along with the roller way, and the method comprises the following steps: acquiring first time from steel tapping to the time when a first plate blank reaches a thermal detection position along a roller way, wherein the thermal detection position is a joint of a heating furnace and rough rolling, and the first plate blank is a plate blank in a target heating furnace; and controlling the tapping time of the second plate blank so that the second time from tapping to reaching the thermal detection position along the roller way of the second plate blank meets a preset condition, wherein the second plate blank is a plate blank in a heating furnace adjacent to the target heating furnace, the preset condition is that the difference value between the second time and the first time is a set value, and further, the tapping rhythm is controlled by controlling the tapping time of the plate blank in each heating furnace, so that the waste of rolling gap time between the adjacent plate blanks is avoided, and the rolling efficiency is improved.

Description

Control method and device for tapping rhythm of heating furnace

technical field

The invention relates to the technical field of heating furnace control, in particular to a control method and device for the tapping rhythm of a heating furnace.

Background technique

In the metallurgical industry, the uniform control of the tapping rhythm of the heating furnace can ensure the consistency of the time when the slabs from the heating furnace reach the rough rolling entrance each time. practical meaning.

The tapping process of the original heating furnace is completely controlled by rough rolling to automatically demand steel. The time rhythm of steel demand is mainly composed of two parts: the tapping time of the tapping machine and the thermal inspection time of the slab running on the roller table to the junction of the rough rolling and the heating furnace. The following problems exist:

The tapping time of each slab is inconsistent, and the transportation time of each slab on the roller table is also inconsistent, which affects the accuracy of the tapping rhythm control of each heating furnace, and the rhythm cannot be accurately controlled, which also causes the rolling gap time. waste, which in turn makes rolling inefficient.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention is proposed to provide a method and device for controlling the tapping rhythm of a heating furnace that overcomes the above problems or at least partially solves the above problems.

In the first aspect, the present invention also provides a method for controlling the tapping rhythm of a heating furnace, which is applied to a control system of multiple heating furnaces. The rough rolling entrance is the nearest, the slabs reach the roller table after tapping from the heating furnace, and follow the roller table to the rough rolling entrance. A detection grating is installed at the exit of each heating furnace, and the slab is connected to the furnace wall of the heating furnace. Keep your distance, including:

Obtain the first time from the tapping of the first slab to the thermal inspection location along the roller table, where the thermal inspection is the junction of the heating furnace and the rough rolling, and the first slab is the plate in the target heating furnace blank;

Controlling the tapping time of the second slab so that the second time from tapping the second slab to reaching the thermal inspection location along the roller table satisfies a preset condition, and the second slab The blank is a slab in a heating furnace adjacent to the target heating furnace, and the preset condition is that the difference between the second time and the first time is a set value.

Further, the acquiring the first time from the tapping of the first slab to the arrival at the thermal inspection location along the roller table includes:

Obtain the third time from the tapping of the first slab to the arrival of the roller table;

acquiring the fourth time when the first slab passes through the furnace wall along the roller table and reaches the thermal inspection location;

Based on the third time and the fourth time, the first time is obtained.

Further, obtaining the third time from the tapping of the first slab to reaching the roller table includes:

When the first slab is detected through the detection grating, the tapping machine is controlled to drag the first slab from the detection grating position to the roller table, and the tapping machine is located at the tapping position of the heating furnace;

Obtain the fifth time when the tapping machine drags the first slab, the sixth time when the tapping machine rises and falls, and the seventh time when the furnace door of the heating furnace reaches the half-open position;

Based on the fifth time, the sixth time and the seventh time, the third time from the tapping of the first slab to the arrival of the roller table is obtained.

Further, acquiring the fifth time for the tapping machine to drag the first slab includes:

Obtain the first preset distance between the forward deceleration point of the tapping machine and the front end of the tapping machine, the second preset distance between the deceleration point of the rear leg of the tapping machine and the centerline of the roller table, the first plate When the billet is tapping, it exceeds the third preset distance of the detection grating, the fourth preset distance between the head of the tapping machine and the detection grating, and the distance between the detection grating and the center line of the roller table. The fifth preset distance, and the first speed of forward acceleration of the tapping machine, the second speed of forward deceleration, the third speed of backward acceleration, and the fourth speed of backward deceleration;

Based on the first preset distance, the second preset distance, the third preset distance, the fourth preset distance, the fifth preset distance, and the first speed, second speed, the third speed, and the fourth speed to obtain the fifth time for the tapping machine to drag the first slab.

Further, based on the first preset distance, the second preset distance, the third preset distance, the fourth preset distance, the fifth preset distance, and the The first speed, the second speed, the third speed, and the fourth speed are obtained to obtain the fifth time from the tapping of the first slab to the roller table, including:

According to the following formula, the fifth time of the first slab reaching the roller table from tapping is obtained:

t3=(L4-L3+w×2/3-0.5)/v31+0.5/v32+L5-L3+w/2-0.5)/v41+0.5/v42

Wherein, L3 is the third preset distance, L4 is the fourth preset distance, L5 is the fifth preset distance, and both the first preset distance and the second preset distance are 0.5 , v31 is the first speed, v32 is the second speed, v41 is the third speed, v42 is the fourth speed, 2/3 is the 2/3 of the tapping machine extending to the first slab /3, t3 is the fifth time.

Further, the acquiring the fourth time when the first slab passes through the furnace wall along the roller table and arrives at the thermal inspection location includes:

Obtain the acceleration and conveying speed of the roller table;

Based on the acceleration of the roller table and the conveying speed, the acceleration duration and the acceleration distance of the first slab acceleration process are obtained;

Acquire a sixth preset distance between the first slab arriving on the roller table and the thermal inspection location, and based on the acceleration duration, the acceleration distance, the conveying speed, and the sixth preset The distance is obtained to obtain the fourth time for the first slab to travel through the furnace wall along the roller table to the thermal inspection location.

Further, based on the acceleration duration, the acceleration distance, the conveying speed, and the sixth preset distance, it is obtained that the first slab passes through the furnace wall along the roller table to reach the hot plate. The fourth time of the prosecution, including:

According to the following formula, the fourth time for the first slab to pass through the furnace wall along the roller table and reach the thermal inspection place is obtained:

T1=t+(L1+L2-l)/v

l=a×t×t/2

Where, a is the acceleration, t is the acceleration duration, l is the acceleration distance, v is the conveying speed, L1+L2 is the sixth preset distance, and T1 is the fourth time.

In the second aspect, the present invention also provides a control device for the tapping rhythm of a heating furnace, which is applied to a control system of multiple heating furnaces. The multiple heating furnaces are arranged in sequence along the direction of the roller table. The rough rolling entrance is the nearest, the slabs reach the roller table after tapping from the heating furnace, and follow the roller table to the rough rolling entrance. A detection grating is installed at the exit of each heating furnace, and the slab is connected to the furnace wall of the heating furnace. Keep your distance, including:

The acquisition module is used to acquire the first time from the tapping of the first slab to the arrival of the thermal inspection along the roller table, where the thermal inspection is the junction of the heating furnace and the rough rolling, and the first slab is any a slab in a heating furnace;

a control module, configured to control the tapping time of the second slab, so that the second time from tapping the second slab to reaching the thermal inspection place along the roller table satisfies a preset condition, The second slab is a slab in a heating furnace adjacent to any of the heating furnaces, and the preset condition is that the difference between the second time and the first time is a set value.

In a third aspect, the present invention also provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, the processor implementing the above method steps when executing the program.

In a fourth aspect, the present invention further provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the above-mentioned method steps are implemented.

One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

The invention provides a method for controlling the tapping rhythm of a heating furnace, which is applied to a control system of multiple heating furnaces. After the slab is tapped from the heating furnace, it reaches the roller table, and along with the roller table reaches the entrance of rough rolling, a detection grating is set at the outlet of each heating furnace, and the distance between the slab and the furnace wall of the heating furnace is maintained. The method includes: Obtain the first time from tapping the first slab to reaching the thermal inspection place along the roller table, the thermal inspection is the junction of the heating furnace and the rough rolling, and the first slab is the slab in the target heating furnace; control the second slab The tapping time of the slab is such that the second time from tapping the second slab to reaching the thermal inspection place along the roller table satisfies the preset condition, and the second slab is in the heating furnace adjacent to the target heating furnace. Slab, the preset condition is that the difference between the second time and the first time is the set value, and then by controlling the tapping time of the slab in each heating furnace, the tapping rhythm is controlled to ensure the gap between adjacent slabs. It will not cause waste of rolling gap time and improve rolling efficiency.

Description of 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 for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. Also, the same components are represented by the same reference figures throughout the drawings. In the attached image:

Fig. 1 shows the structural schematic diagram of a heating furnace tapping steel to reaching a thermal inspection place in an embodiment of the present invention;

Fig. 2 shows the step flow schematic diagram of the control method of the tapping rhythm of the heating furnace in the embodiment of the present invention;

Fig. 3 shows the structural schematic diagram of the control device for the tapping rhythm of the heating furnace in the embodiment of the present invention;

FIG. 4 shows a schematic structural diagram of a computer device for implementing a method for controlling the tapping rhythm of a heating furnace in an embodiment of the present invention.

Detailed ways

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 by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

Example 1

The embodiment of the present invention provides a method for controlling the tapping rhythm of a heating furnace, which is applied to a control system of multiple heating furnaces. As shown in FIG. The end heating furnace is the closest to the rough rolling entrance. After the slab is tapped from the heating furnace, it reaches the roller table and follows the roller table to the rough rolling entrance. A detection grating is installed at the exit of each heating furnace. The slab and the furnace wall of the heating furnace keep a distance between them. The tapping machine is located at the tapping point of the heating furnace and is used to drag the slab from the furnace mouth to the roller table.

As shown in Figure 2, the method includes:

S201, obtaining the first time from the tapping of the first slab to the time when the first slab reaches the thermal inspection place along the roller table, where the thermal inspection is the junction of the heating furnace and the rough rolling, and the first slab is the slab in the target heating furnace;

S202, controlling the tapping time of the second slab, so that the second time from tapping the second slab to reaching the thermal inspection place along the roller table satisfies the preset condition, and the second slab is adjacent to the target heating furnace For the slab in the heating furnace, the preset condition is that the difference between the second time and the first time is a set value.

First of all, slab tapping is counted from when the detection grating detects the slab. The slab shown in Figure 1 is just in the tapping position.

Next, in S201, the acquisition process of the first time is as follows:

Obtain the third time of the first slab from tapping to reaching the roller table;

Obtain the fourth time when the first slab passes through the furnace wall along the roller table and reaches the thermal inspection place;

Based on the third time and the fourth time, the first time is obtained.

Specifically, after the third time and the fourth time are obtained, the third time and the fourth time are added to obtain the first time.

The process of obtaining the third time is described in detail below:

When the first slab is detected by the detection grating, the tapping machine is controlled to start to drag the first slab from the detection grating position to the roller table, and the tapping machine is located at the tapping position of the heating furnace;

Next, obtain the fifth time when the tapping machine drags the first slab, the sixth time when the tapping machine rises and falls, and the seventh time when the furnace door of the heating furnace reaches the half-open position;

Based on the fifth time, the sixth time and the seventh time, the third time from the tapping of the first slab to the arrival of the roller table is obtained.

First, in the process of the tapping machine dragging the first slab, the tapping machine accelerates forward, decelerates forward, and accelerates backward and decelerates backward. Therefore, when the first slab is dragged to the roller table, the following distance information needs to be obtained, including:

Obtain the first preset distance between the forward deceleration point of the tapping machine and the front end of the tapping, the first preset distance is a fixed value of 0.5, and the second preset distance between the backward deceleration point of the tapping machine and the centerline of the roller table, the The second preset distance is also a fixed value of 0.5, wherein the forward deceleration point and the backward deceleration point are both located between the detection grating and the center line of the roller table.

It is also necessary to obtain the third preset distance L3 that exceeds the detection grating when the first slab is tapped, the fourth preset distance L4 between the head of the tapping machine and the detection grating, and the third preset distance between the detection grating and the centerline of the roller table. Five preset distance L5, the first speed v31 for the forward acceleration of the tapping machine, the second speed v32 for the forward deceleration of the tapping machine, the third speed v41 for the backward acceleration of the tapping machine, and the fourth speed v42 for the backward deceleration of the tapping machine.

After acquiring the information, according to the first preset distance, the second preset distance, the third preset distance, the fourth preset distance, the fifth preset distance, and the first speed, the second speed, the third speed and the The fourth speed is the fifth time for the tapping machine to drag the first slab.

The obtaining process of the fifth time is obtained according to the following formula:

t3=(L4-L3+w×2/3-0.5)/v31+0.5/v32+L5-L3+w/2-0.5)/v41+0.5/v42

Wherein, L3 is the third preset distance, L4 is the fourth preset distance, L5 is the fifth preset distance, the first preset distance and the second preset distance are both 0.5, v31 is the first speed, v32 is the first Second speed, v41 is the third speed, v42 is the fourth speed, 2/3 is the point where the tapping machine reaches 2/3 of the first slab, and t3 is the fifth time.

Of course, when the slab in each heating furnace is pulled out by the tapping machine, the above method can be used to obtain the fifth time that the slab is pulled by the tapping machine.

In addition, when the tapping machine drags the slab, not only the dragging time is required, but also the rising and descending time of the tapping machine, that is, the sixth time. Before the tapping machine drags the slab, it needs to control the descending of the tapping machine so that the tapping machine extends below the slab. After that, the tapping machine needs to be controlled to rise to realize the dragging. After the above, it is also necessary to control the descending of the tapping machine. In this process, the ascending and descending time of the tapping machine is fixed, which can be obtained from experience, and the ascending and descending time of the tapping machine is set as t5.

When the slab arrives at the outlet of the heating furnace, it is also necessary to wait for the time when the furnace door of the heating furnace is in the half-open position, that is, the seventh time, which is also a fixed value t6.

Then, based on the fifth time, the sixth time and the seventh time, the third time for the first slab to reach the roller table from the tapping is obtained.

Specifically, the third time T3=t3+t5+t6.

Below, the process of acquiring the fourth time is described:

Obtain the acceleration and conveying speed of the roller table;

Based on the acceleration and the conveying speed, the acceleration duration and acceleration distance of the acceleration process of the first slab are obtained;

Obtain the sixth preset distance between when the first slab arrives on the roller table and the thermal inspection location, and obtain the first slab passing through the furnace along the roller table based on the acceleration time, the acceleration distance, the conveying speed and the sixth preset distance The fourth time the wall arrives at the thermal inspection.

Specifically, the formula for obtaining the fourth time is as follows:

T1=t+(L1+L2-l)/v

l=a×t×t/2

Among them, a is the acceleration, t is the acceleration duration, l is the acceleration distance, v is the conveying speed, L1+L2 is the sixth preset distance, and T1 is the fourth time.

L1 refers to the distance between the first slab and the furnace wall of the heating furnace, and L2 refers to the distance between the furnace wall and the thermal inspection location.

Wherein, the time used by the first slab during the acceleration process is t=v/a, and the acceleration distance of the first slab during the acceleration process is l=a×t×t/2.

Thus, the fourth time for the first slab to reach the thermal inspection place along the roller table through the furnace wall is obtained, which is the acceleration time plus the uniform speed time, that is, T1=t+(L1+L2-l)/v

After obtaining the fourth time for the first slab to pass through the furnace wall along the roller table to reach the thermal inspection location, S102 is executed, and the tapping time of the second slab is controlled, so that the second slab goes from tapping to rolling along the rollers. The second time when the track reaches the thermal inspection place satisfies the preset condition, the second slab is the slab in the heating furnace adjacent to the target heating furnace, and the preset condition is that the difference between the second time and the first time is set to Value.

That is to say, by controlling the tapping time of the second slab adjacent to the first slab, there is no idle time between when the first slab and the second slab arrive at the thermal inspection location respectively, and there is no chance for rolling. impact on manufacturing efficiency.

Of course, it is also possible to control the tapping time of the third slab, the fourth slab and the Nth slab, so as to ensure that the time difference between the adjacent slabs from the start of tapping to the point of thermal inspection satisfies the set value, the set value It can be 0.9 seconds, etc., which is not specifically limited here.

By uniformly controlling the timing of slab tapping, the tapping rhythm can be reasonably controlled and the rolling gap time can be reduced.

One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

The invention provides a method for controlling the tapping rhythm of a heating furnace, which is applied to a control system of multiple heating furnaces. After the slab is tapped from the heating furnace, it reaches the roller table, and along with the roller table reaches the entrance of rough rolling, a detection grating is set at the outlet of each heating furnace, and the distance between the slab and the furnace wall of the heating furnace is maintained. The method includes: Obtain the first time from tapping the first slab to reaching the thermal inspection place along the roller table, the thermal inspection is the junction of the heating furnace and the rough rolling, and the first slab is the slab in the target heating furnace; control the second slab The tapping time of the slab is such that the second time from tapping the second slab to reaching the thermal inspection place along the roller table satisfies the preset condition, and the second slab is in the heating furnace adjacent to the target heating furnace. For slabs, the preset condition is that the difference between the second time and the first time is the set value, and then by controlling the tapping time of the slabs in each heating furnace, the tapping rhythm is controlled to ensure that the adjacent slabs are There is no waste of rolling gap time, and the rolling efficiency is improved.

Embodiment 2

Based on the same inventive concept, the embodiment of the present invention also provides a control device for the tapping rhythm of a heating furnace, which is applied to a control system of multiple heating furnaces. The multiple heating furnaces are sequentially arranged along the direction of the roller table. The end heating furnace is the closest to the rough rolling entrance. After the slab is tapped from the heating furnace, it reaches the roller table and follows the roller table to the rough rolling entrance. A detection grating is installed at the exit of each heating furnace. Keep the distance between the furnace walls of the furnace, as shown in Figure 3, the device includes:

The acquisition module 301 is used to acquire the first time from the tapping of the first slab to the arrival of the thermal inspection along the roller table, where the thermal inspection is the junction of the heating furnace and the rough rolling, and the first slab is The slab in the target furnace;

The control module 302 is used to control the tapping time of the second slab, so that the second time from tapping the second slab to reaching the thermal inspection place along the roller table satisfies a preset condition , the second slab is a slab in a heating furnace adjacent to the target heating furnace, and the preset condition is that the difference between the second time and the first time is a set value.

In an optional implementation manner, the obtaining module 301 includes:

a first obtaining unit, used for obtaining the third time from the tapping of the first slab to the arrival of the roller table;

a second acquiring unit, configured to acquire the fourth time when the first slab passes through the furnace wall along the roller table and arrives at the thermal inspection location;

A obtaining unit is configured to obtain the first time based on the third time and the fourth time.

In an optional implementation manner, the first obtaining unit is used for:

It is used to control the tapping machine to drag the first slab from the detection grating position to the roller table when the first slab is detected by the detection grating, and the tapping machine is located in the heating furnace for tapping. place;

Used to obtain the fifth time when the tapping machine drags the first slab, the sixth time when the tapping machine rises and falls, and the seventh time when the heating furnace door reaches the half-open position;

It is used to obtain the third time from the tapping of the first slab to the arrival of the roller table based on the fifth time, the sixth time and the seventh time.

In an optional embodiment, the first obtaining unit includes:

The first acquisition sub-unit is used to acquire the first preset distance between the forward deceleration point of the tapping machine and the front end of the tapping machine, and the second preset distance between the deceleration point of the rear leg of the tapping machine and the centerline of the roller table. Set the distance, the third preset distance beyond the detection grating when the first slab is tapped, and the fourth preset distance between the head of the tapping machine and the detection grating, the detection grating and the detection grating. The fifth preset distance between the centerlines of the roller table, and the first speed of forward acceleration of the tapping machine, the second speed of forward deceleration, the third speed of backward acceleration, and the fourth speed of backward deceleration;

Obtaining a subunit for, based on the first preset distance, the second preset distance, the third preset distance, the fourth preset distance, the fifth preset distance, and the The first speed, the second speed, the third speed, and the fourth speed are obtained to obtain the fifth time for the tapping machine to drag the first slab.

In an optional embodiment, subunits are obtained for:

According to the following formula, the fifth time of the first slab reaching the roller table from tapping is obtained:

t3=(L4-L3+w×2/3-0.5)/v31+0.5/v32+L5-L3+w/2-0.5)/v41+0.5/v42

Wherein, L3 is the third preset distance, L4 is the fourth preset distance, L5 is the fifth preset distance, and both the first preset distance and the second preset distance are 0.5 , v31 is the first speed, v32 is the second speed, v41 is the third speed, v42 is the fourth speed, 2/3 is the 2/3 of the tapping machine extending to the first slab /3, t3 is the fifth time.

In an optional embodiment, the second obtaining unit includes:

Obtain the acceleration and conveying speed of the roller table;

Based on the acceleration of the roller table and the conveying speed, the acceleration duration and the acceleration distance of the first slab acceleration process are obtained;

Acquire a sixth preset distance between the first slab arriving on the roller table and the thermal inspection location, and based on the acceleration duration, the acceleration distance, the conveying speed, and the sixth preset The distance is obtained to obtain the fourth time for the first slab to travel through the furnace wall along the roller table to the thermal inspection location.

In an optional implementation manner, the second obtaining unit is used for:

According to the following formula, the fourth time for the first slab to pass through the furnace wall along the roller table and reach the thermal inspection place is obtained:

T1=t+(L1+L2-l)/v

l=a×t×t/2

Where, a is the acceleration, t is the acceleration duration, l is the acceleration distance, v is the conveying speed, L1+L2 is the sixth preset distance, and T1 is the fourth time.

Embodiment 3

Based on the same inventive concept, an embodiment of the present invention provides a computer device, as shown in FIG. 4 , including a memory 404, a processor 402, and a computer program stored in the memory 404 and running on the processor 402. When the processor 402 executes the program, the steps of the above-mentioned control method for the tapping rhythm of the heating furnace are realized.

4, the bus architecture (represented by bus 400), bus 400 may include any number of interconnected buses and bridges, bus 400 will include one or more processors represented by processor 402 and memory 404 The various circuits of the memory are linked together. The bus 400 may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. Bus interface 406 provides an interface between bus 400 and receiver 401 and transmitter 403 . Receiver 401 and transmitter 403 may be the same element, a transceiver, providing a means for communicating with various other devices over a transmission medium. The processor 402 is responsible for managing the bus 400 and general processing, while the memory 404 may be used to store data used by the processor 402 in performing operations.

Embodiment 4

Based on the same inventive concept, an embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the steps of the above method for controlling the tapping rhythm of a heating furnace.

The algorithms and displays provided herein are not inherently related to any particular computer, virtual system, or other device. Various general-purpose systems can also be used with teaching based on this. The structure required to construct such a system is apparent from the above description. Furthermore, the present invention is not directed to any particular programming language. It should be understood that various programming languages may be used to implement the inventions described herein, and that the descriptions of specific languages above are intended to disclose the best mode for carrying out the invention.

In the description provided herein, numerous specific details are set forth. It will be 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 is to be understood that in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or its description. However, this disclosure should not be construed as reflecting an intention 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 understand that the modules in the device in the embodiment can be adaptively changed and arranged in one or more devices different from the embodiment. The modules or units or components in the embodiments may be combined into one module or unit or component, and further they may be divided into multiple sub-modules or sub-units or sub-assemblies. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method so disclosed may be employed in any combination, unless at least some of such features and/or procedures or elements are mutually exclusive. All processes or units of equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, it will be understood by those skilled in the art that although some of the embodiments herein include certain features, but not others, included in other embodiments, that combinations of features of the different embodiments are intended to be within the scope of the present invention And form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

Various component embodiments of the present 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 should understand that a microprocessor or a digital signal processor (DSP) can be used in practice to implement the control device for the tapping rhythm of the heating furnace and the control of some or all of the components in the computer equipment according to the embodiment of the present invention. some or all functions. The present invention can also be implemented as apparatus or apparatus programs (eg, computer programs and computer program products) for performing part or all of the methods described herein. Such a program implementing the present invention may be stored on a computer-readable medium, or may be in the form of one or more signals. Such signals may be downloaded from Internet sites, or provided on carrier signals, or in any other form.

It should be noted that the above-described embodiments illustrate rather than limit the invention, and that alternative embodiments may be devised by those skilled in the art 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 can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. do not denote any order. These words can be interpreted as names.

Claims (10)

1. A control method of heating furnace tapping rhythm is applied to a control system of a plurality of heating furnaces, the plurality of heating furnaces are sequentially arranged along the direction of a roller way, a head end heating furnace is closest to a rough rolling inlet, a plate blank arrives on the roller way after tapping from the heating furnace, and arrives at the rough rolling inlet along with the roller way, a detection grating is arranged at the outlet of each heating furnace, and a distance is kept between the plate blank and a furnace wall of the heating furnace, and the control method is characterized by comprising the following steps:

acquiring first time from steel tapping to the time when a first plate blank reaches a thermal detection position along the roller way, wherein the thermal detection position is a joint of a heating furnace and rough rolling, and the first plate blank is a plate blank in a target heating furnace;

and controlling the tapping time of the second slab so that the second time from tapping to the time when the second slab reaches the thermal detection position along the roller way meets a preset condition, wherein the second slab is a slab in a heating furnace adjacent to the target heating furnace, and the preset condition is that the difference value between the second time and the first time is a set value.

2. The method according to claim 1, characterized in that said taking a first slab for a first time from tapping to reaching a thermal test along said roller table comprises:

acquiring third time from tapping to the arrival of the first plate blank on the roller way;

acquiring fourth time for the first plate blank to reach the thermal detection position along the roller way through the furnace wall;

and obtaining the first time based on the third time and the fourth time.

3. The method according to claim 2, characterized in that said taking a third time of the first slab from tapping to reaching the roller table comprises:

when a first plate blank is detected through the detection grating, controlling a tapping machine to drag the first plate blank onto the roller way from the position of the detection grating, wherein the tapping machine is positioned at the tapping position of the heating furnace;

acquiring fifth time for dragging the first plate blank by the tapping machine, sixth time for ascending and descending the tapping machine and seventh time for the furnace door of the heating furnace to reach a half-open position;

and obtaining a third time from tapping to reaching the roller way of the first plate blank based on the fifth time, the sixth time and the seventh time.

4. The method according to claim 3, characterized in that said taking a fifth time at which said tapping machine drags said first slab comprises:

acquiring a first preset distance between a forward speed reducing point of the steel tapping machine and a steel tapping front end, a second preset distance between a rear leg speed reducing point of the steel tapping machine and a roller way center line, a third preset distance exceeding the detection grating during steel tapping of the first slab, a fourth preset distance between a head of the steel tapping machine and the detection grating, a fifth preset distance between the detection grating and the roller way center line, a first speed of forward acceleration, a second speed of forward deceleration, a third speed of backward acceleration and a fourth speed of backward deceleration of the steel tapping machine;

and obtaining a fifth time for dragging the first slab by the tapping machine based on the first preset distance, the second preset distance, the third preset distance, the fourth preset distance, the fifth preset distance, the first speed, the second speed, the third speed and the fourth speed.

5. The method of claim 3, wherein said obtaining a fifth time for said first slab to reach said roller table from tapping based on said first preset distance, said second preset distance, said third preset distance, said fourth preset distance, said fifth preset distance, and said first speed, second speed, third speed, fourth speed comprises:

obtaining a fifth time for the first slab to reach the roller table from the steel tapping according to the following formula:

t3＝(L4-L3+w×2/3-0.5)/v31+0.5/v32+L5-L3+w/2-0.5)/v41+0.5/v42

wherein, L3 is the third preset distance, L4 is the fourth preset distance, L5 is the fifth preset distance, first preset distance with the second preset distance is 0.5, v31 is the first speed, v32 is the second speed, v41 is the third speed, v42 is the fourth speed, 2/3 is that the tapping machine stretches to 2/3 department of first slab, t3 is the fifth time.

6. The method of claim 2, wherein said obtaining a fourth time for said first slab to travel along said roller track past said furnace wall to said thermal test site comprises:

acquiring the acceleration and the conveying speed of the roller way;

obtaining the acceleration duration and the acceleration distance of the first plate blank in the acceleration process based on the acceleration and the conveying speed of the roller way;

and acquiring a sixth preset distance between the first plate blank and the thermal detection position when the first plate blank arrives on the roller way, and acquiring fourth time for the first plate blank to arrive at the thermal detection position along the roller way through the furnace wall based on the acceleration duration, the acceleration distance, the conveying speed and the sixth preset distance.

7. The method of claim 6, wherein obtaining a fourth time for the first slab to follow the roller bed through the furnace wall to the thermal test site based on the acceleration duration, the acceleration distance, the transport speed, and the sixth predetermined distance comprises:

and obtaining the fourth time for the first plate blank to reach the thermal detection position through the furnace wall along the roller way according to the following formula:

T1＝t+(L1+L2-l)/v

l＝a×t×t/2

wherein a is an acceleration, T is the acceleration time period, L is the acceleration distance, v is the carrying speed, L1+ L2 is the sixth preset distance, and T1 is the fourth time.

8. The utility model provides a controlling means of heating furnace tapping rhythm, is applied to among the control system of many heating furnaces, many heating furnaces arrange in order along the roll table direction, and the head end heating furnace is nearest apart from the rough rolling entry, and the slab is followed reach after the heating furnace tapping on the roll table to along with the roll table arrives the rough rolling entry, set up the detection grating in every heating furnace exit, keep apart from between the furnace wall of slab and heating furnace, its characterized in that includes:

the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the first time from steel tapping to the time when a first plate blank reaches a thermal detection position along a roller way, the thermal detection position is the joint of a heating furnace and rough rolling, and the first plate blank is the plate blank in any heating furnace;

and the control module is used for controlling the tapping time of the second slab so that the second time from tapping to the time from reaching the thermal detection position along the roller way of the second slab meets a preset condition, the second slab is a slab in a heating furnace adjacent to any heating furnace, and the preset condition is that the difference value between the second time and the first time is a set value.

9. A computer arrangement comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method steps of any of claims 1-7 when executing the program.

10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 7.

Images