Method and device for charging of blowing-in blast furnace without bell

Abstract

The invention provides a metering method of blow on charging into blast furnace without bell. The method comprises the steps of: metering the distance from material level to metering site with laser ranging technique, metering the incident angle of the laser beam, metering other sites according to the requirement, inputting the data into a computer, calculating the upright distance of the material, and drawing the shape of the material. The invention also provides the metering equipments containing a laser range finder, a dial indicator and an assembling frame. The invention avoids the interferences on material level caused by operators working in the furnace or fixing auxiliary devices. The measurement range can cover the whole material level. The invention has the advantages of reliable and accurate data, and is safe, simple, high-efficient, and rapid.

Description

technical field [0001] The invention belongs to the technical field of blast furnace ironmaking, and is particularly suitable for a method and a measuring device for measuring the shape of a material surface when a bellless blast furnace is opened and charged. Background technique [0002] Charging is one of the most important links in the blast furnace production process. The initial distribution of the charge in the furnace directly affects the smoothness and longevity of the blast furnace. Due to the continuity and airtightness of blast furnace production, it is difficult for people to observe the shape of the material surface during the production process, and only local fixed-point measurement can be carried out. Therefore, people generally use the charging process of the furnace to measure the shape of the material surface comprehensively, so as to grasp the distribution rules of the charging equipment and guide the production operation of the blast furnace. Especiall...

AI Technical Summary

Problems solved by technology

[0007] Traditional methods such as manual measurement require installation of auxiliary devices in the furnace, and also require measurement personnel to enter the furnace, which consumes a lot of materials and manpower, and because of the existence of auxiliary devices in the furnace and the entry of measurement personnel The original shape of the material surface brings disturbance and affects the accuracy of measurement

The measurement process is relatively complicated and cumbersome, the working environment is harsh, and the measurement time is long

[0008] Although the new camera method does not require surveyors to enter the furnace, it still needs to install auxiliary devices in the furnace, which also consumes a lot of materials. The disturbance of the material flow during the fabric distribution process is unavoidable, and because the shooting angle of the camera equipment is limited , it is easy to cause visual error

The measurement process is also more complicated and cumbersome, and the measurement time is longer

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