Claims:WE CLAIM:
A device for determining and controlling the circumferential balance in charging burden material inside blast furnace, the device comprising:
A control system (A), for acquiring data from field devices and transmitting data to computer device, being coupled with plurality of sensors (P1 – P5);
A data cleaning and sampling means (B);
A data processing means (C) to quantify the performance of learning logic program for preparing the data and filtering the database on control limit and estimating circumferential balance of blast furnace; a computation module for communication for feedback system;
A visualization means (D); and
A control room feedback means (E).

The device as claimed in claim 1, wherein the visualization means (D) comprises ofcharts and graphs.
The device as claimed in claim 1, wherein the sensors (P1 – P5) are tilt angle and gate opening proximity sensor, rotation encoder and the like.
The device as claimed in claim 1, where the sensors (P1 – P5) measure hopper weights, lower material gates opening, rotation and tilt angle of chute and controller of material distribution system.
A method for determining and controlling uniformity in distribution of the material in a blast furnace the method comprising the steps of-
- obtaining data from plurality of sensors (P1, P2, P3, P4, P5) coupled to associated electronic devices;
- transferring data to the control system (A) which is coupled to the data cleaning and sampling means(B) and the data processing means (C);
- processing the data to generate learning logic performance index; and
- determining the values generated with a predefined value to obtain the desired result;
characterized in that the control feedback system (E) coupled to the processing means generates the resultant value and displays on the visualization means (D).
The method as claimed in claim 1, wherein the value of learning logic performance index is equal to value 1.
The method as claimed in claim 1, wherein the sensors senses parameters which include hopper weight? (Hp?_Wt), LMG opening (L), chute rotation angle (r), tilt angle (t) and changing matrix.
, Description:FIELD OF INVENTION:
The invention relates to learning performance of Burden Distribution system in a blast furnace. Particularly the invention relates to a device and a method measuring the performance of learning logic in Burden Distribution system.
BACKGROUND AND PRIOR ART:
Blast furnace is a counter current reactor in which coke, metallics are charged from the top, and oxygen is blown from the bottom. Indirect reduction of metallics from the flowing gas is one of the most important factors for achieving high efficiency in the blast furnace. Gas which is injected from the bottom part of the furnace ascends taking the path of least resistance. Gas flow depends on the void fraction of the solids being charged from the top. Therefore, the radial distribution of the coke and metallics becomes important. To achieve desired symmetric distribution bell-less top is used in modern blast furnaces. This provides the ability to charge the material at the desired location and ensures symmetry. However, bell less top operates on some logic and takes input from various sensors for ensuring symmetry.
Asymmetry in gas flow in blast furnace leads to instability of operation, less utilization of fuel and less productivity. There are few patents available which address the circumferential balance in gas distribution.
A Japanese patent, Patent no JP 1297155 of year 1981 provides a methodology to detect the deviation in circumferential distribution of blast furnace by analyzing top gas from four uptakes of the blast furnace.
A Japanese patent, Patent no JP57070209 of year 1982 describes a method of determining the circumferential distribution of gas in blast furnace by using top gas temperature, gas constituents, gas flow rate, gas pressure and tapping data.
The prior art determine circumferential balance is by measuring the gas temperature and composition. Variation in the temperature and composition can be the effect of many parameters which influences it. Here in the present invention a device and methodology is developed by taking direct response from the material distribution device which is a direct way of evaluation of circumferential balance and is accurate.

OBJECTS OF THE INVENTION:
The principal objective of the present invention is to provide a device for determining and controlling the circumferential balance in charging burden material inside blast furnace.
Another object of the present invention is to provide a method for determining and controlling the circumferential balance in charging burden material inside blast furnace.
SUMMARY OF THE INVENTION:
A device and method for determining and controlling the circumferential balance in charging burden material inside blast furnace according to the present invention comprises of a control system (A) for acquiring data from field devices and transmitting data to computer device and is being coupled with plurality of sensors (P1 – P5) to sense the parameters of hopper weight? (Hp?_Wt), Lower Material Gate (LMG) opening(L), chute rotation angle(r), tilt angle (t)and charging matrix. Said sensed values are being sent to a data cleaning and sampling means (B) for cleansing of the data which in turn is further forwarded to a data processing means (C) to quantify the performance of learning logic program for preparing the data and filtering the database on control limit and estimating circumferential balance of blast furnace; a computation module for communication for feedback system. A Visualization means (D) is being coupled to processing means (C) and control room feedback means (E) and is configured to visualizeR_peras so that operator can monitor it.

BRIEF DESCRIPTION OF THE DRAWINGS
It is to be noted, however, that the appended drawings illustrate only typical embodiments of the present subject matter and are therefore not to be considered for limiting of its scope, for the invention may admit to other equally effective embodiments.The detailed description is described 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 figures to reference like features and components. Some embodiments of system or methods in accordance with embodiments of the present subject matter are now described, by way of example, and with reference to the accompanying figures, in which:
Fig 1 - shows a block diagram of a predicting device with its various components in accordance with an embodiment of the invention.
Fig-2: Schematic illustration calculation of index for learning logic performance.
Fig 3 –discloses visualization of various trends of performance of learning logic in Burden Distribution system
The figures depict embodiments of the present subject matter for the purposes of illustration only. A person skilled in the art will easily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.

DETAIL DESCRIPTION OF THE INVENTION
The present invention will be described in detail below with reference to an embodiment as shown in the drawing.
Various embodiments of the invention provide a charging uniformity check device for determining and controlling the charging in a blast furnace equipped with bell-less top charging system.
The circumferential balance predicting device comprising a plurality of sensors, the plurality of sensors being placed at various location, particularly the positions from where the values can be fetched, in the bell less top charging system, the plurality of sensors (P1, P2, P3, P4, P5) being configured to sense values corresponding to parameters of hopper weight? (Hp?_Wt),Lower Material Gate (LMG) opening (L), chute rotation angle(r), tilt angle (t)and charging matrix with respect to time and forward the sensed values to a control system means (A), the control system means (A) being coupled to the plurality of sensors, it is configured to store and forward the sensed values to a data cleaning and sampling means (B), the data cleaning and sampling means (B) is coupled to data processing (C) means, the data processing means is configured toquantify the performance of learning logic program used by the burden distribution system to control the gate opening based on change in flow behavior of burden material. An index termed as learning logic performance (R_per) stated below is developed to quantify the performance of learning logic used distribution system.
Index for learning logic performance (Ri_per):
Data processing means (C) being coupled to data sampling means (B) it is configured to calculate learning logic performance for Burden Distribution system
system(R_per).
R_per=A/B
Ri_per=R_per/n_(hop_LMG)
Where,A=(W2-W1)/W1,B=(L2-L1)/L1

Control room feedback means (E) being coupled to processing means (C) it is configured to following decisions
Case-1: IfR_per/n_(hop_LMG) >1, correction in hopper weight compensation is not proportional, thereby a value alteration of parameters is needed to bring ? R?_per=n_(hop_LMG)
Case-2: IfR_per/n_(hop_LMG) =1, correction in hopper weight compensation is proportional, thereby no value alteration of parameters is needed.
Case-3: IfR_per/n_(hop_LMG) <1, correction in hopper weight compensation is not proportional, thereby a value alteration of parameters is needed to bring ? R?_per=n_(hop_LMG)
Where n_(hop_LMG) is proportionalityconstant between hopper weight and LMG opening. It is different for different material based on their properties like density, shape and particle size distribution.
Visualization means (D) being coupled to processing means (C) and control room feedback means (E), it is configured to visualizeR_peras shown in Fig.3, so that operator can monitor it.
It should be noted that the description and figures merely illustrate the principles of the present subject matter. It should be appreciated by those skilled in the art that conception and specific embodiment disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present subject matter. It should also be appreciated by those skilled in the art that by devising various assembly that, although not explicitly described or shown herein, embody the principles of the present subject matter and are included within its spirit and scope. Furthermore, all examples recited herein are principally intended expressly to be for pedagogical purposes to aid the reader in understanding the principles of the present subject matter and the concepts contributed by the inventor(s) to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions. The novel features which are believed to be characteristic of the present subject matter, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures.
These and other advantages of the present subject matter would be described in greater detail with reference to the following figures. It should be noted that the description merely illustrates the principles of the present subject matter. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described herein, embody the principles of the present subject matter and are included within its scope.
It will be further appreciated that functions or structures of a plurality of components or steps may be combined into a single component or step, or the functions or structures of one-step or component may be split among plural steps or components. The present invention contemplates all of these combinations. Unless stated otherwise, dimensions and geometries of the various structures depicted herein are not intended to be restrictive of the invention, and other dimensions or geometries are possible. In addition, while a feature of the present invention may have been described in the context of only one of the illustrated embodiments, such feature may be combined with one or more other features of other embodiments, for any given application. It will also be appreciated from the above that the fabrication of the unique structures herein and the operation thereof also constitute methods in accordance with the present invention. The present invention also encompasses intermediate and end products resulting from the practice of the methods herein. The use of “comprising” or “including” also contemplates embodiments that “consist essentially of” or “consist of” the recited feature.
Although embodiments for the present subject matter have been described in language specific to structural features, it is to be understood that the present subject matter is not necessarily limited to the specific features described. Rather, the specific features and methods are disclosed as embodiments for the present subject matter. Numerous modifications and adaptations of the system/component of the present invention will be apparent to those skilled in the art, and thus it is intended by the appended claims to cover all such modifications and adaptations which fall within the scope of the present subject matter.