JPH07180978A - Shape calculating device with profile meter - Google Patents

Abstract

PURPOSE:To prevent an error from being generated by a method wherein an imaginary permalloy plane is made in response to measurement data at the permalloy plane, a line passing from the imaginary permalloy plane through a wear combustion cylinder measuring point is made and concurrently a crossing point between this line and the imaginary permalloy plane is calculated as a residual pressure value. CONSTITUTION:In a diagram indicating a side wall measured residual pressure value calculating logic, a permalloy plane is defined as a plane where initial bricks and permalloy bricks are applied when some refractory materials are applied at a molten steel ladle and a wear plane is defiend as a plane where finishing bricks are similarly applied to the wall. In order to calculate a residual pressure value at a plurality of measuring points x, y and z, at first, the residual pressure value at each of the measuring points x, y and z is calculated internally in response to the data when the permalloy plane is measured so as to make the imaginary permalloy plane. Then, a line passing from the imaginary permalloy plane through the wear surface measuring points x, y, z and crossing at a right angle with an x-axis of a central line of the ladle is made. Subsequently, imaginary permalloy plane crossing points are defined as x', y' and z' and calculated as residual pressure values (x', y', z'-xyz).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a profile meter-based shape calculation device. The purpose is to prevent the occurrence of large errors.

[0002]

2. Description of the Related Art FIG. 3 is a diagram showing a conventional sidewall measurement residual thickness value calculation logic. The perm surface is the surface of the first brick or perma brick when the molten steel ladle refractory was installed. The wear surface is the surface on which finishing bricks were applied during the construction of a molten steel ladle refractory. The X-axis shows the depth of the pot when the center of the pot and the surveying section are connected. The Y-axis shows the distance from the center of the pan to the surface of the pan sidewall refractory.

Point A at the right end of the center of the pan is the starting point of the surveying section.
XYZ and X'Y'Z 'represent side wall measurement points.
l and l'indicate the distance from the surveying section to the measuring point. α
Indicates the angle between the measurement line and the center line of the pot. α, α ′
Sets the pan size (ware construction size) on the drawing in the pan shape file and calculates the angle. The distance from the pan center at the measurement point XYZ at this time can be represented by lsinα = L. Also, the distance from the center of the pan at the measurement point X'Y'Z 'is
It can be expressed by l'sin α = L '. The refractory residual thickness value at this time is determined as (L'-L).

[0004]

However, when this calculation logic is used, an angle is formed between the measurement surface and the measurement line. Therefore, the deeper the pot is, the thinner the actual remaining thickness value becomes. There is a problem in that a large error occurs between the actual remaining thickness value and the measured value because it is calculated.

[0005]

SUMMARY OF THE INVENTION The present invention advantageously solves the problems of the prior art, in which the residual thickness value at the measurement point XYZ is calculated internally by a virtual perm based on the data at the perm surface measurement. Make a surface and measure the wear surface from the virtual perm surface X
A line is created that passes through YZ and goes straight to the X-axis of the pan center line. At this time, the virtual perimeter surface intersection is defined as X'Y'Z ', and the residual thickness value is calculated as (L'-L). It is a shape calculation device using a profile meter.

The present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing an embodiment of the present invention. Reference numeral 1 is a profile meter surveying unit, which measures the distance to the surface of the molten steel ladle refractories according to a command from the control unit. Reference numeral 2 is a profile meter robot unit, which directs the surveying unit to a measurement point according to a command from the control unit. Reference numeral 3 is a profile meter control arithmetic processing section for instructing the surveying section and the driving section, calculating the refractory residual thickness value, and storing the measured data. 4 is a profile meter trolley control panel for moving the trolley.

The feature of the present invention is that the error generated at the time of measurement can be reduced by applying the correction by the profile meter control calculation processing unit 3 based on the data measured by the profile meter measuring unit 1.

FIG. 2 is a diagram showing the logic for calculating the sidewall measurement residual thickness value when the present invention is used. The perm surface is the surface of the first brick or perma brick when the molten steel ladle refractory was installed. The wear surface is the surface on which finishing bricks were applied during the construction of a molten steel ladle refractory. The X-axis shows the depth of the pot when the center of the pot and the surveying section are connected. The Y-axis shows the distance from the center of the pan to the surface of the pan sidewall refractory. Point A at the right end of the center of the pan is the starting point of the surveying section. XY
Z and X'Y'Z 'indicate the measurement points on the side wall. L,
L'shows the distance from the X-axis of the pan center line to the measuring point.

The method of calculating the residual thickness value at the measurement point XYZ at this time is to make a virtual perm surface by internal calculation based on the data at the time of measuring the perm surface, and pass the wear surface measurement point XYZ from the virtual perm surface. Make a line to go straight to the X-axis
The virtual perm surface intersection at this time is X'Y'Z '. An intersection point x between the perm virtual measurement point x "y" Z "and the extension line of each perm surface measurement point (extension line of x ° y ° Z ° and x'y'z ') wear plane measurement point xyz "Y" Z "is obtained and is defined as (x" y "Z")-(xyz).
c ″ is obtained from a ° b ° c °, a ′ ″ ″ b ″ ″ ″ c ″ ″, and an extended line of abc. The residual thickness value is (L ′
-L). By using this calculation logic, an angle is generated between the measurement surface and the measurement line, but since the angle can be ignored in this calculation logic, it was possible to reduce the error in the residual thickness value.

[0010]

As described above, according to the present invention, when this calculation logic is used, the angle between the measuring surface and the measuring line can be neglected, so that the actual residual thickness value is Since the values are almost the same, there is no error between the actual residual thickness value and the measured value, which is an extremely excellent effect.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention,

FIG. 2 is a diagram showing a sidewall measurement residual thickness value calculation logic when the present invention is used,

FIG. 3 is a diagram showing a sidewall measurement residual thickness value calculation logic according to a conventional technique.

[Explanation of symbols]

 1 Profile meter surveying section 2 Profile meter robot section 3 Profile meter control processing section 4 Profile meter trolley control panel

Claims (1)

[Claims] 1. A virtual perm surface is created by internal calculation of the residual thickness values at measurement points XYZ based on the data at the perm surface measurement,
A line is created from the virtual perm surface that passes through the wear surface measurement point XYZ and goes straight to the pan center line X-axis. Z'-X
A profile calculation device using a profile meter, which is provided with a profile meter control / arithmetic processing unit required as YZ).