Charging bucket weighing differential fuzzy compensation system for serial bucket-type bell-less top
A technology with fuzzy compensation and no material clock, applied in furnaces, blast furnaces, blast furnace details, etc., it can solve the problems of high sensitivity, no removal mechanism, self-correction results deterioration, etc., to achieve accurate distribution flow, ensure accurate control, and improve smelting. horizontal effect
Inactive Publication Date: 2014-11-26
WISDRI ENG & RES INC LTD
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Problems solved by technology
[0004] At present, the commonly used weighing differential pressure compensation technology scheme is the linear compensation method, which cannot correct the linear compensation coefficient in real time, and cannot continuously ensure the accuracy and stability of the weighing value of the tank
In the invention patent with the publication number CN101985669A and the invention title "Differential Pressure Compensation Self-Correction Method for Furnace Top Tank Weighing", a method for correcting the weighing differential pressure compensation coefficient with a periodic memory compensation method is described. Although this method can effectively solve the technical problem of linear compensation coefficient drift caused by peripheral factors of the blast furnace, the production practice shows that this method is too sensitive to the measurement data of "bad points". When the weighing value of the tank is seriously inaccurate, it will often cause fluctuations in the self-correction linear compensation coefficient, and there is no "bad point" data removal mechanism, so that these data may always affect the subsequent self-correction results, and there is a hidden danger of further deterioration of the self-correction results
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[0035] The present invention will be further described below in conjunction with specific examples and accompanying drawings.
[0036] figure 1 It is a structural schematic diagram of an embodiment of the present invention, which includes:
[0037] The under-tank weighing value acquisition module is used to read the weighing value W of the under-tank weighing measurement system of the blast furnace after the tank is filled. 槽下 ;
[0038] The data acquisition module of the pressure equalization process is used to read the weighing value W of n groups of materials in batches during the primary pressure equalization and secondary pressure equalization process of the material tank i , top pressure P i and tank pressure value T i , where i is the i-th group of data read in batches during the primary pressure equalization and secondary pressure equalization of the tank;
[0039] The tank weighing differential pressure fuzzy compensation modeling module is connected with the wei...
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The invention provides a charging bucket weighing differential fuzzy compensation system for a serial bucket-type bell-less top. The charging bucket weighing differential fuzzy compensation system comprises an under-groove weighed value acquisition module, a pressure-equalizing process data acquisition module, a charging bucket weighing differential fuzzy compensation modelling module connected with the under-groove weighed value acquisition module and the pressure-equalizing process data acquisition module, a discharging process data acquisition module, a real-time differential compensation coefficient calculation module connected with the charging bucket weighing differential fuzzy compensation modelling module and the discharging process data acquisition module, and a discharging process weight fuzzy compensation module connected with the real-time differential compensation coefficient calculation module and the discharging process data acquisition module. According to the charging bucket weighing differential fuzzy compensation system provided by the invention, pressures acquired in a primary pressure-equalizing process and a secondary pressure-equalizing process for charging buckets in real time, and charging bucket weighing data are adequately utilized for performing online fuzzy modelling on a charging bucket weighing differential compensation coefficient, so as to obtain a nonlinear physical relationship between the difference of a furnace top pressure and a charging bucket pressure, and the charging bucket weighing differential compensation coefficient, thus the technical problem of the drift of the differential compensation coefficient caused by the external factors of a blast furnace is effectively solved.
Description
technical field [0001] The invention belongs to the technical field of blast furnace ironmaking on a furnace top without a bell, and in particular relates to a fuzzy compensation system for weighing differential pressure of tanks on a furnace top without a bell. Background technique [0002] With the development of smelting technology, the current blast furnace generally adopts bellless top for material distribution, there are tankless bellless, combined tankless bell, three tankless bellless, double bell and four valve types, etc. Among them, the series tank without material bell occupies a dominant position. At present, the large-scale blast furnaces under construction basically adopt the charging process of the series tank without material bell system. In order to improve the efficiency of blast furnace smelting, the technical requirements for the refinement of cloth are getting higher and higher. Due to the harsh production environment of the blast furnace top and the l...
Claims
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IPC IPC(8): C21B7/18C21B5/00
Inventor 赵昊裔
Owner WISDRI ENG & RES INC LTD