阅读说明：本技术 一种高炉布料过程径向矿焦比的控制方法 (Control method for radial ore-coke ratio in material distribution process of blast furnace ) 是由 陈江 詹敏述 吴永利 于 2020-05-07 设计创作，主要内容包括：本发明公开了一种高炉布料过程径向矿焦比的控制方法,基于模型建立系统,模型建立系统包括第一信息输入模块、高炉炉体数据储存器、第二信息输入模块、矿焦比历史数据储存器、目标矿焦比数据输入模块以及计算模块；在利用现有模型建立方法的基础上,忽略高炉炉体设备参数和高炉炉料参数之间变量关系,视高炉炉体设备参数相对高炉炉料参数独立,以此得到径向矿焦比曲线与高炉炉料参数之间的函数关系,进而通过反函数求解得到不同高炉炉料参数与对应的径向矿焦比曲线的函数关系。通过输入不同目标矿焦比数据,从而从矿焦比历史数据中提取对应区间数据,从而快速得到对应的目标高炉炉料参数,从而控制投料。(The invention discloses a control method of a blast furnace burden distribution process radial ore-coke ratio, which is based on a model establishing system, wherein the model establishing system comprises a first information input module, a blast furnace body data storage, a second information input module, an ore-coke ratio historical data storage, a target ore-coke ratio data input module and a calculation module; on the basis of the existing model building method, neglecting the variable relation between the equipment parameters of the blast furnace body and the blast furnace burden parameters, and observing that the equipment parameters of the blast furnace body are independent relative to the blast furnace burden parameters, so as to obtain the functional relation between the radial ore-coke ratio curve and the blast furnace burden parameters, and further obtain the functional relation between different blast furnace burden parameters and the corresponding radial ore-coke ratio curve through inverse function solving. By inputting different target ore-coke ratio data, corresponding interval data is extracted from ore-coke ratio historical data, so that corresponding target blast furnace burden parameters are obtained quickly, and feeding is controlled.)

1. The control method of the radial ore-coke ratio in the material distribution process of the blast furnace is characterized in that the control method is based on a model establishing system, wherein the model establishing system comprises a first information input module, a blast furnace body data storage, a second information input module, an ore-coke ratio historical data storage, a target ore-coke ratio data input module and a calculation module;

the method comprises the steps that blast furnace body equipment parameters are input into a first information input module, the first information input module is electrically connected with a blast furnace body data storage, the first information input module transmits the blast furnace body equipment parameters to the blast furnace body data storage, and the blast furnace body data storage records the blast furnace body equipment parameters and sets the blast furnace body equipment parameters as default values; if the input signal of the first information input module is blank, the blast furnace body data storage takes the last blast furnace body equipment parameter as a default value;

inputting the ore-coke ratio historical data into a second information input module, wherein the second information input module is electrically connected with an ore-coke ratio historical data storage, the second information input module transmits the ore-coke ratio historical data to the ore-coke ratio historical data storage, and the ore-coke ratio historical data storage records the ore-coke ratio historical data and sets the ore-coke ratio historical data as a default value; if the input signal of the second information input module is blank, the ore-coke ratio historical data storage takes the last ore-coke ratio historical data as a default value;

the target ore-coke ratio data input module, the blast furnace body data storage and the ore-coke ratio historical data storage are connected to the calculation module in parallel;

step (1): the calculation module firstly obtains a as x according to a default value a of the ore-coke ratio historical data storage, a default value b of the blast furnace body data storage and a blast furnace burden parameter c₁(b)y₁(c)；

Step (2): according to a ═ x₁(b)y₁(c) Obtaining blast furnace burden parameter c ═ x by reverse thrust calculation₂(b)y₂(a)；

And (3): inputting target ore-coke ratio data into a target ore-coke ratio data input module, transmitting the target ore-coke ratio data to a calculation module by the target ore-coke ratio data input module, and reducing the value range of a by the calculation module according to the target ore-coke ratio data a 'to correspondingly obtain a target blast furnace burden parameter c';

and (4): if the input signal of the first information input module and the input signal of the second information input module are blank at the same time, repeating the step (3);

and (3) if the input signal of the first information input module and/or the input signal of the second information input module is/are not blank, repeating the steps (1), (2) and (3).

2. The method for controlling the radial ore-coke ratio in the burden distribution process of the blast furnace as claimed in claim 1, wherein the calculation module is electrically connected to a feeder, and the feeder performs the burden distribution according to the target blast furnace burden material parameter c' between the steps (3) and (4).

3. The method for controlling the radial ore-coke ratio in the burden distribution process of the blast furnace as claimed in claim 2, wherein the value range of a is divided into a₁、a₂…a_nThe value range corresponding to c is divided into c₁、c₂…c_nN is a natural number not less than 2, and the calculation module divides aRespectively with a₁、a₂…a_nPerforming coincidence calculation, wherein the corresponding coincidence degrees are respectively s_m，n≥m≥1，s_mC corresponding to the maximum value of_mNamely the target blast furnace burden parameter c'.

4. The method for controlling the radial ore-coke ratio in the burden distribution process of the blast furnace as claimed in claim 3, wherein the contact ratio s is the contact ratio_mIs calculated in a manner of_mAnd a' overlap of the numerical length with a_mThe numerical length ratio of (c).

5. The method for controlling the radial ore-coke ratio in the burden distribution process of a blast furnace as claimed in claim 3, wherein if s is greater than s_mC corresponding to the maximum value of_mIf the number of the material feeders is more than two, the calculating module outputs corresponding c to the material feeders in sequence_m。

6. The method for controlling the radial ore-coke ratio in the burden distribution process of the blast furnace as claimed in claim 4 or 5, wherein a is_mHas a data length of l_m，l₁＜l₂＜…＜l_n。

[ technical field ] A method for producing a semiconductor device

The invention relates to a control method of a radial ore-coke ratio in a material distribution process of a blast furnace, belonging to the field of metallurgy control.

[ background of the invention ]

The purpose of blast furnace burden distribution is to realize a target radial ore-coke ratio, thereby realizing reasonable burden distribution. The whole process of blast furnace burden distribution is closed, and workers cannot observe in real time, so that some theoretical simulation is needed for feeding guidance. Chinese patent 201410336893.7 discloses a control method for radial ore-coke ratio in the blast furnace burden distribution process, which relies on burden parameters and furnace body parameters to combine historical data of historical radial ore-coke ratio for fitting, so that each feeding parameter changes, each fitting needs to be calculated from the beginning, and the calculation amount is very heavy.

[ summary of the invention ]

The invention aims to overcome the defects of the prior art and provide a control method of the radial ore-coke ratio in the material distribution process of a blast furnace, which has simpler calculated amount and simpler model.

The technical scheme adopted by the invention is as follows:

a control method of a blast furnace burden distribution process radial ore-coke ratio is based on a model building system, wherein the model building system comprises a first information input module, a blast furnace body data storage, a second information input module, an ore-coke ratio historical data storage, a target ore-coke ratio data input module and a calculation module;

the method comprises the steps that blast furnace body equipment parameters are input into a first information input module, the first information input module is electrically connected with a blast furnace body data storage, the first information input module transmits the blast furnace body equipment parameters to the blast furnace body data storage, and the blast furnace body data storage records the blast furnace body equipment parameters and sets the blast furnace body equipment parameters as default values; if the input signal of the first information input module is blank, the blast furnace body data storage takes the last blast furnace body equipment parameter as a default value;

inputting the ore-coke ratio historical data into a second information input module, wherein the second information input module is electrically connected with an ore-coke ratio historical data storage, the second information input module transmits the ore-coke ratio historical data to the ore-coke ratio historical data storage, and the ore-coke ratio historical data storage records the ore-coke ratio historical data and sets the ore-coke ratio historical data as a default value; if the input signal of the second information input module is blank, the ore-coke ratio historical data storage takes the last ore-coke ratio historical data as a default value;

the target ore-coke ratio data input module, the blast furnace body data storage and the ore-coke ratio historical data storage are connected to the calculation module in parallel;

step (1): the calculation module firstly obtains a as x according to a default value a of the ore-coke ratio historical data storage, a default value b of the blast furnace body data storage and a blast furnace burden parameter c₁(b)y₁(c)；

Step (2): according to a ═ x₁(b)y₁(c) Obtaining blast furnace burden parameter c ═ x by reverse thrust calculation₂(b)y₂(a)；

And (3): inputting target ore-coke ratio data into a target ore-coke ratio data input module, transmitting the target ore-coke ratio data to a calculation module by the target ore-coke ratio data input module, and reducing the value range of a by the calculation module according to the target ore-coke ratio data a 'to correspondingly obtain a target blast furnace burden parameter c';

and (4): if the input signal of the first information input module and the input signal of the second information input module are blank at the same time, repeating the step (3);

and (3) if the input signal of the first information input module and/or the input signal of the second information input module is/are not blank, repeating the steps (1), (2) and (3).

The invention has the beneficial effects that:

on the basis of the existing model building method, neglecting the variable relation between the equipment parameters of the blast furnace body and the blast furnace burden parameters, and observing that the equipment parameters of the blast furnace body are independent relative to the blast furnace burden parameters, so as to obtain the functional relation between the radial ore-coke ratio curve and the blast furnace burden parameters, and further obtain the functional relation between different blast furnace burden parameters and the corresponding radial ore-coke ratio curve through inverse function solving. By inputting different target ore-coke ratio data, corresponding interval data is extracted from ore-coke ratio historical data, so that corresponding target blast furnace burden parameters are obtained quickly, and feeding is controlled. Under the condition that the blast furnace body equipment parameters are not changed, the calculation step of obtaining the target blast furnace burden parameters from the radial ore-coke ratio curve can be greatly simplified, and the calculation result in the early stage can be utilized to the maximum extent. In addition, the parameters of the blast furnace body equipment do not need to be frequently adjusted, so that the waiting time for adjusting a plurality of furnace body parameters can be saved, and the feeding time interval is reduced.

The calculating module is electrically connected to a feeder, and the feeder feeds materials according to target furnace burden parameters c' between the steps (3) and (4).

The value range of a in the invention is divided into a₁、a₂…a_nThe value range corresponding to c is divided into c₁、c₂…c_nN is a natural number not less than 2, and the calculation module respectively compares a' with a₁、a₂…a_nPerforming coincidence calculation, wherein the corresponding coincidence degrees are respectively s_m，n≥m≥1，s_mC corresponding to the maximum value of_mNamely the target blast furnace burden parameter c'.

Degree of contact s according to the invention_mIs calculated in a manner of_mAnd a' overlap of the numerical length with a_mThe numerical length ratio of (c).

If s of the invention_mC corresponding to the maximum value of_mIf the number of the material feeders is more than two, the calculating module outputs corresponding c to the material feeders in sequence_m。

Invention a_mHas a data length of l_m，l₁＜l₂＜…＜l_n。

Other features and advantages of the present invention will be disclosed in more detail in the following detailed description of the invention and the accompanying drawings.

[ description of the drawings ]

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a block diagram of a model building system according to embodiment 1 of the present invention;

FIG. 2 is a flowchart of a method for controlling the radial ore-coke ratio in the burden distribution process of a blast furnace in accordance with embodiment 1 of the present invention.

[ detailed description ] embodiments

The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.

In the following description, the appearances of the indicating orientation or positional relationship such as the terms "inner", "outer", "upper", "lower", "left", "right", etc. are only for convenience in describing the embodiments and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.