Claims:I/WE CLAIM:
1. A system for measuring trajectory of burden material falling in blast furnace, the system comprising :
a laser sensor system, wherein the laser sensor system generates at least one two-dimensional scanning plane inside a blast furnace and at a location below the chute; and
a control module coupled to the laser sensor system, wherein the control module comprises:
a data acquisition module (D), wherein the data acquisition module (D) obtains high frequency data from the laser sensor system,
a data pre-processing module (E), wherein the data pre-processing module (E) filters trajectory co-ordinates of a burden material falling into the blast furnace through the chute from the high frequency data; and
a data logging module (F), wherein the data logging module (F) classify the filtered trajectory co-ordinates based on a burden distribution matrix.

2. The system as claimed in claim 1, wherein the control module comprises:
a data processing application (G) comprises:
a live data visualization module (G-1), wherein live data visualization module (G-1) generates a real-time visualization across the cross section of the blast furnace based on the trajectory co-ordinates;
an offline data visualization module (G-2), wherein the offline data visualization module (G-2) generate a comparative visualization based on a comparison of the trajectory co-ordinates and historical data;
a sensor control module (G-3), wherein the sensor control module (G-3) controls the laser sensor system (a) based on user data; and
a burden matrix module (G-4), wherein the burden matrix module (G-4) obtains user data associated with the burden matrix.

3. A method for measuring trajectory of burden material falling in blast furnace, the method comprising :
generating, by a laser sensor system (a), at least one two-dimensional scanning plane inside a blast furnace and at a location below the chute;
obtaining, by the data acquisition module (D), high frequency data from the laser sensor system (a);
filtering, by a data pre-processing module (E), trajectory co-ordinates of a burden material falling into the blast furnace through the chute from the high frequency data; and
classifying, by a data logging module (F), the filtered trajectory co-ordinates based on a burden distribution matrix.
, Description:CROSS-REFERENCE TO RELATED APPLICATIONS AND PRIORITY
[001] The present application does not claim priority from any patent application.
TECHNICAL FIELD
[002] The present disclosure in general relates to the field of blast furnace. More particularly, the present subject matter relates to systems and methods for measuring trajectory of burden material falling in blast furnace.
BACKGROUND
[003] Blast furnace is a packed bed counter current reactor. Efficiency of blast furnace depends on proper utilization of reducing CO gas, which is mainly controlled by the burden distributed in the furnace. Burden distribution system distributes the burden material as per the best optimized burden distribution matrix to obtain the desired burden distribution required for operating condition of blast furnace. Deviation in properties like change in granulometry, moisture content, particle size distribution, composition of sinter and pellet or due to wearing of distribution chute there is significant change is flow behavior of burden material which is responsible for shift in trajectory path as well spread of falling material. Hence although best optimized burden matrix for burden distribution is used, desired burden distribution cannot be obtained. So it is necessary to periodically measure the trajectory of material falling from chute.
SUMMARY
[004] Before the present system and a method for measuring trajectory of burden material in blast furnace are described, it is to be understood that this application is not limited to a particular system, systems, and methodologies described, as there can be multiple possible embodiments, which are not expressly illustrated in the present disclosures. It is also to be understood that the terminology used in the description is for the purpose of describing the particular implementations, versions, or embodiments only, and is not intended to limit the scope of the present application. This summary is provided to introduce aspects related to a system and a method for measuring trajectory of burden material in blast furnace. This summary is not intended to identify essential features of the claimed subject matter nor is it intended for use in determining or limiting the scope of the claimed subject matter.
[005] In one embodiment, a method for measuring trajectory of burden material in blast furnace is disclosed. In the embodiment, the method comprises generating, by a laser sensor system, at least one two-dimensional scanning plane inside a blast furnace and at a location below the chute. Upon generating, the method comprises obtaining, by a data acquisition module, high frequency data for the laser sensor system and filtering, by a data pre-processing module, trajectory co-ordinates of a burden material falling into the blast furnace through the chute from the high frequency data. Further to filtering the method comprise classifying, by a data logging module, the filtered trajectory co-ordinates based on a burden distribution matrix.
[006] In one embodiment, a system for measuring trajectory of burden material in blast furnace is disclosed. The system comprises a laser sensor system, and a control module coupled to the laser sensor system. The control module further comprises a data acquisition module, a data pre-processing module and a data logging module. Further, the laser sensor system generates at least one two-dimensional scanning plane inside a blast furnace and at a location below the chute. Upon generating, the data acquisition module obtains high frequency data for the laser sensor system and the data pre-processing module filters trajectory co-ordinates of a burden material falling into the blast furnace through the chute from the high frequency data. Subsequently, wherein the data logging module classify the filtered trajectory co-ordinates based on a burden distribution matrix.
BRIEF DESCRIPTION OF DRAWINGS
[001] The foregoing detailed description of embodiments is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the present subject matter, an example of construction of the present subject matter is provided as figures; however, the present subject matter is not limited to the specific method and system disclosed in the document and the figures.
[002] The present subject matter is described in detail with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the drawings to refer various features of the present subject matter.
[003] Figure 1 illustrates a block diagram a system for measuring trajectory of burden material in blast furnace, in accordance with an embodiment of the present subject matter.
[004] Figure 2 illustrates a laser sensor system logic for measuring trajectory of burden material in blast furnace, in accordance with an embodiment of the present subject matter.
[005] Figure 3 illustrates schematic for rings of trajectory path and spread of material generated by processing the data from the laser sensor system, in accordance with an embodiment of the present subject matter.
[006] Figure 4 illustrates schematic for the user interface of live data visualization module, in accordance with an embodiment of the present subject matter.
[007] Figure 5 illustrates schematic for the user interface of live data visualization module, in accordance with an embodiment of the present subject matter.
[008] Figure 6 illustrates schematic for the user interface of sensor control module, in accordance with an embodiment of the present subject matter.
[009] Figure 7 illustrates schematic for the user interface of burden matrix module, in accordance with an embodiment of the present subject matter
[0010] Figure 8 illustrates schematic for the user interface of data analysis module and report generation module, in accordance with an embodiment of the present subject matter.
[0011] Figure 9 illustrates a method for measuring trajectory of burden material in blast furnace, in accordance with an embodiment of the present subject matter.
DETAILED DESCRIPTION
[0012] Some embodiments of this disclosure, illustrating all its features, will now be discussed in detail. The words "comprising," "having," "containing," and "including," and other forms thereof, are intended to be open ended in that an item or items following any one of these words is not meant to be an exhaustive listing of such item or items, or meant to be limited to only the listed item or items. It must also be noted that as used herein and in the appended claims, the singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise. Although any system and method for measuring trajectory of burden material in blast furnace, similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present disclosure, the exemplary, system and method for measuring trajectory of burden material in blast furnace are now described.
[0013] Various modifications to the embodiment will be readily apparent to those skilled in the art and the generic principles herein may be applied to other embodiments for measuring trajectory of burden material in blast furnace. However, one of ordinary skill in the art will readily recognize that the present disclosure for measuring trajectory of burden material in blast furnace is not intended to be limited to the embodiments described, but is to be accorded the widest scope consist in this regard, in a generic sense.
[0014] In view of the foregoing limitations inherent in the prior-art, it is an object of the invention to establish a laser based system integrated with a robust control module to perform a real-time measurement of co-ordinates of moving material trajectory across the circumference of blast furnace. The system performs real-time visualization of material trajectory location, logging data and generating an analysis report to compare the material trajectory position and its spread for different regimes.
[0015] In one embodiment, a non-invasive measurement system for measuring co-ordinates of trajectory of burden material falling in blast furnace comprises a laser sensor system electronically coupled with a control module. In one embodiment, the laser sensor system is configured to generate a two-dimensional sensing plane across the cross-sectional area of blast furnace throat, and configured to intercept the falling material trajectory from the chute of burden distribution system and get real-time co-ordinates of the falling material stream location and its spread. The control module is configured to accept high frequency data from the laser sensor system, filter this large volume of data, provide real-time visualization, log it for offline visualization and generating a consolidated report for position of material trajectory rings and their bands. Further, control module configured to control the laser sensor system, such as for setting a scanning frequency and a reference location or turning the laser sensor system ON/OFF.
[0016] Referring now to Figures, Figure 1 illustrates a block diagram a system for measuring trajectory of burden material in blast furnace and Figure 2 illustrates a laser sensor system logic for measuring trajectory of burden material in blast furnace, in accordance with an embodiment of the present subject matter. Further, Figure 3 illustrates schematic for rings of trajectory path and spread of material generated by processing the data from the laser sensor system, Figure 4 and Figure 5 illustrate schematic for the user interface of live data visualization module, Figure 6 illustrates schematic for the user interface of sensor control module, in accordance with an embodiment of the present subject matter. Furthermore, Figure 7 illustrates schematic for the user interface of burden matrix module, Figure 8 illustrates schematic for the user interface of data analysis module and report generation module, in accordance with an embodiment of the present subject matter. In the subsequent section, the present subject matter is further explained with reference to figures 1-8. Further, Table 1 illustrates the elements and the corresponding numbering utilized in the figures.
Reference Number Detail Reference Number Detail
a laser sensor system G-3 Sensor control module
b control module G-4 Burden matrix module
A laser sensor G-5 Data analysis module
B enclosure F Data logging module
C high speed data transmission cable G Data processing application
D data acquisition module H Data input/output module
E data pre-processing module G-1 Live data visualization module
G-2 Offline data visualization module
[0017] In one embodiment, system for measuring trajectory of burden material falling in blast furnace, is disclosed. The system comprises a laser sensor system (a) and control module (b) (as shown in figure 1).
[0018] As shown in figure 2, laser sensor system (a) is configured to track the falling material trajectory as the high frequency scanning laser intercept the falling material particles and get the exact co-ordinates. Further in the embodiment, the control module (b) is coupled with laser sensor system (a) using a high-speed data transmission cable (C). Further, the control module (b) has data input/output module (H) for two-way communication. A data acquisition module (D) is coupled with Data input/output module (H). Data input/output module is configured to ensure secured communication between Sensor and Data processing application (G). A data pre-processing module (E) is coupled with data acquisition module (D) which is configured to filter unwanted signals. Further, a Data logging module (F) is coupled with data pre-processing module (E). While data logging module (F) is configured to log filtered high-frequency data coming from data pre-processing module (E).
[0019] In the embodiment, the data processing application (G) consist of four sub-modules Live Data Visualization Module (1), Offline Data Visualization Module (2), Settings Module (3) and Data Analysis Module (4). Live or real-time data visualization module (1) is directly coupled with data pre-processing module output (E). Live or real-time data visualization module (1) is configured to visualize the live trajectory bands across the circumference of furnace (as shown in figure 4 and 5). Offline Data Visualization Module (2) is coupled with Data logging module (F), which is configured to display band of rings across the circumference of furnace for any of the requested dump whose data is logged by the sensor. Offline data visualization module (2) is also configured to compare bands of rings for material trajectory for different dumps. Sensor control module (3) is coupled with data input/output module (H). Sensor control module is configured to control the sensor operating features like frequency, ON/OFF state, degree of scans (as shown in figure 6). Burden Matrix Module (4) is coupled with data logging module. Burden Matrix module (4) is configured to take user input as burden matrix planed for the charging in the blast furnace and store in data logging module (F) (as shown in figure 7). Data pre-processing module (E) is configured to classify the sensed data based on burden plan so that sensed data logged in Data logging module (F) can be accessed easily. Data analysis module (5) is coupled with data logging module (F). Data analysis module is configured to analyse the sensed data of all the trajectories and generate a consolidated analysis report which clearly shows the exact locations of burden trajectories (as shown in figure 8).
[0020] Exemplary embodiments for measuring trajectory of burden material falling in blast furnace discussed above may provide certain advantages. Though not required to practice aspects of the disclosure, these advantages may include the following:
[0021] Some embodiments of the system and the method enables non-invasive measurement.
[0022] Some embodiments of the system and the method provide measurement of co-ordinates of moving material trajectory across the circumference of blast furnace.
[0023] Some embodiments of the system and the method provide real-time visualization of material trajectory location.
[0024] Referring now to figure 9, a method 300 for measuring trajectory of burden material falling in blast furnace, is disclosed in accordance with an embodiment of the present subject matter. The method 300 for measuring trajectory of burden material falling in blast furnace may be described in the general context of device executable instructions. Generally, device executable instructions can include routines, programs, objects, components, data structures, procedures, modules, functions, and the like, that perform particular functions or implement particular abstract data types. The method 300 for measuring trajectory of burden material falling in blast furnace may also be practiced in a distributed computing environment where functions are performed by remote processing systems that are linked through a communications network. In a distributed computing environment, computer executable instructions may be located in both local and remote computer storage media, including memory storage systems.
[0025] The order in which the method 300 for measuring trajectory of burden material falling in blast furnace is described is not intended to be construed as a limitation, and any number of the described method blocks can be combined in any order to implement the method 300 or alternate methods. Additionally, individual blocks may be deleted from the method 300 without departing from the spirit and scope of the subject matter described herein. Furthermore, the method 300 can be implemented in any suitable hardware, software, firmware, or combination thereof. However, for ease of explanation, in the embodiments described below, the method 300 for measuring trajectory of burden material falling in blast furnace may be considered to be implemented in the above-described system 102.
[0026] At block 302, a two-dimensional scanning plane is generated by a laser sensor system (a) inside a blast furnace and at a location below the chute.
[0027] At block 304, high frequency data is obtained by the data acquisition module (D), from the laser sensor system (a).
[0028] At block 306, trajectory co-ordinates of a burden material falling into the blast furnace through the chute is filtered by a data pre-processing module (E) from the high frequency data.
[0029] At block 308, the filtered trajectory co-ordinates is classified by a data logging module (F) based on a burden distribution matrix
[0030] Although implementations for methods and systems for measuring trajectory of burden material falling in blast furnace have been described in language specific to structural features and/or methods, it is to be understood that the appended claims are not necessarily limited to the specific features or methods for measuring trajectory of burden material falling in blast furnace described. Rather, the specific features and methods are disclosed as examples of implementations for measuring trajectory of burden material falling in blast furnace.