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A Measuring Method of Coal Injection Quantity of BF Coal Injection System

A technology of blast furnace coal injection and metering method, which is applied to blast furnaces, blast furnace details, blast furnace parts, etc., can solve problems such as difficult maintenance, complex on-site control, and many pipelines, so as to improve accuracy, avoid tank weight fluctuations, and highlight the essence The effect of sexuality

Inactive Publication Date: 2015-11-11
JIGANG GRP
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  • Description
  • Claims
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Problems solved by technology

The pulling force of the balance cylinder is used to directly offset the push force of the soft connection, but this makes the on-site control more complicated, and the additional cylinder will bring new problems such as more pipelines and difficult maintenance.

Method used

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  • A Measuring Method of Coal Injection Quantity of BF Coal Injection System
  • A Measuring Method of Coal Injection Quantity of BF Coal Injection System
  • A Measuring Method of Coal Injection Quantity of BF Coal Injection System

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Embodiment Construction

[0032] In order to make the technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments.

[0033] A method for measuring the amount of coal injection in a blast furnace coal injection system of the present invention comprises the steps of:

[0034] (1) At a certain moment as the starting timing point, collect and record the weight of the spray tank at this timing point, and then record the collection time point and the weight of the spray tank every 1s, and record the above collection time points in chronological order denoted as t in turn 1 , t 2 ,...,t n , n≥10, and n∈N, record the weight of the blowing tank recorded above as g 1 , g 2 ,..., g n , and n∈N.

[0035] (2) Calculate the average weight G of the spray tank according to the formula ① n , and the mean weight G n As the above acquisition time point t n The actual wei...

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Abstract

The invention provides a method for measuring coal injection quantity of a blast furnace coal injection system, which comprises the following steps: calculating the current tank weight in the coal injection tank coal injection process in a equalizing value filtration mode, and calculating the hourly coal injection quantity of the coal injection tank on the basis of the tank weight. The method can greatly eliminate the influence of the weight false value generated in the early injection period of the injection tank on the calculation of the coal injection quantity, and greatly avoid the influence of the tank weight fluctuations caused by the regulation of the injection pressure in the stable injection period on the calculation of the coal injection quantity, thereby enhancing the calculation accuracy of the coal injection quantity of the coal injection tank.

Description

technical field [0001] The invention relates to the field of pulverized coal injection in a blast furnace coal injection system, in particular to a method for measuring the amount of coal injection in a blast furnace coal injection system. Background technique [0002] With the increasingly fierce market competition, reducing costs has become a necessary means for enterprises to enhance their vitality. Accurate material measurement has become the first magic weapon for enterprises to reduce production costs. In the field of iron and steel smelting, the tank-type blast furnace pulverized coal injection system has been widely used, and the tank-type injection process has experienced the early non-metering state in terms of material metering, and the subsequent intermittent metering, single continuous metering, and the current Four stages of double continuous metering are used. [0003] However, for the dual continuous metering that is currently used more often, although a so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B5/00C21B7/00
Inventor 王轶
Owner JIGANG GRP
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