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Charging bucket-weighing and differential pressure-compensating system for serial-type bell-less top

A technology of compensation system and material-less bell, which is applied in the direction of furnace, blast furnace, blast furnace details, etc., can solve problems such as inaccurate weighing value of material tank, and achieve the effect of improving smelting level, precise control, stable and reliable control

Inactive Publication Date: 2013-10-30
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a technical problem that can solve the serious inaccurate weighing value of the material tank due to the drift of the differential pressure compensation coefficient caused by the peripheral factors of the blast furnace roof, and ensure the stability of the material distribution system of the blast furnace. , Evenly and accurately control the flow of material distribution, the tank weighing differential pressure compensation system on the furnace top without material bell

Method used

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  • Charging bucket-weighing and differential pressure-compensating system for serial-type bell-less top
  • Charging bucket-weighing and differential pressure-compensating system for serial-type bell-less top
  • Charging bucket-weighing and differential pressure-compensating system for serial-type bell-less top

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Embodiment 1

[0035] The tank weighing differential pressure compensation system on the top of the bell-less furnace provided by the invention has a structure as follows: figure 1Shown: Including the weighing value acquisition module under the tank, the differential pressure compensation coefficient calculation module, the pressure equalization process data acquisition module, the differential pressure compensation coefficient storage update module, the unloading process data acquisition module, the unloading process material weight compensation calculation module, They are connected by electrical signals.

[0036] Under-tank weighing value acquisition module: used to read the weighing value W of the blast furnace under-tank weighing measurement system after each tank is filled 槽下 .

[0037] Data acquisition module for pressure equalization process: used to read multi-group material weight W in batches during the primary pressure equalization and secondary pressure equalization process of ...

Embodiment 2

[0077] The tank weighing differential pressure compensation system on the top of the furnace with a string of tanks without a bell provided by the present invention has a hardware system structure as follows: image 3 Shown: It is composed of PLC controller, furnace top pressure transmitter, material tank pressure transmitter, material tank weighing sensor, tank weighing sensor and upper computer. The PLC controller receives the process data sent from the on-site weighing sensor and pressure transmitter, performs data analysis and online calculation according to the method of the present invention, continuously corrects the differential pressure compensation coefficient of the tank weighing, and converts the corrected difference The pressure compensation coefficient is stored in the memory database of the PLC controller and displayed in the host computer at the same time.

[0078] The tank weighing differential pressure compensation system for the above-mentioned series tank w...

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Abstract

The invention discloses a charging bucket-weighing and differential pressure-compensating system for a serial-type bell-less top, and the system comprises an under groove weighing value acquiring module, a differential pressure compensation coefficient computing module, a pressure equalization process data acquiring module, a differential pressure compensation coefficient storing and updating module, a material discharge process data acquiring module and a material discharge process material weight compensation computing module which are connected through electric signals. According to the system, the technical problem that the shift of a differential pressure compensation coefficient caused by the external factors of a blast furnace can be effectively solved, the influence of the pressure of the top of the blast furnace to the weighing of a charging bucket can be reduced, the exact weight measurement under the high pressure of the charging bucket can be realized, the exact control on the process of distributing materials by a gravimetric method can be guaranteed, the material distribution flow can be stably, evenly and exactly controlled by a material distribution system of the bell-less top of the blast furnace, and the iron-making level of the blast furnace can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of blast furnace ironmaking on a bellless furnace top, in particular to a tank weighing differential pressure compensation system on a bellless furnace roof. 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 limitation of the installation conditi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/24C21B5/00
Inventor 解相朋赵菁李永单秉仁祝兵权
Owner WISDRI ENG & RES INC LTD
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