JPS63110284A - Measuring of amount of charged coal in coke oven - Google Patents

Abstract

PURPOSE:To reduce the amount of dry heat and to obtain high-quality coke, by pushing out coke in a carbonizing chamber from one end to detect a transfer position, detecting height of coke oven at the other end and measuring the amount of charged coal based on outputs of these detectors in high accuracy. CONSTITUTION:Coke in a carbonizing chamber 2 in a coke oven 1 is pushed out from one end part 9 of the carbonizing chamber 2 by a pushing member 11, transfer position of the pushing member 11 is detected by a position detector 17 and at the other end 10 of the carbonizing chamber 2, height of coke layer is detected by a height detector 16. Then, the height of the coke layer in the length direction from the end part 9 of the carbonizing chamber 2 to the other end 10 is measured based on outputs of the height detector 16 and the position detector 17 and amount of coal from each coal charging hole 3 is measured based on the measured value.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for measuring the coal charge 1 in the coal chamber of a coke oven.

Background technology] - The amount of coal charged into the coal chamber of a cooper furnace, that is, the amount of coal loaded,
By increasing the amount of heat, it is possible to reduce the amount of heat of carbonization in the coke oven. For this reason, how much room is there to increase coal loading 1 compared to the current coal loading amount?
It is necessary to determine whether the current operational management is appropriate for the increase in coal loading.

The degree of thermal decomposition of generated tar in a coke oven is important for pitch quality control. The degree of thermal decomposition of this tar is thought to be related to the volume of the open space between the top of the coke layer in the coal chamber and the ceiling of the coal chamber, and is closely related to the residence time of the tar and therefore the reaction time.

Until now, it has not been possible to accurately measure the amount of coal loaded in the coal chamber, and therefore it has not been possible to efficiently reduce the heat of carbonization in the coke oven. In the past, the height of the coke layer did not receive particular attention from the perspective of the production process. The cover of the coal charging hole formed at the top of the coal chamber is left open, and a long iron rod is inserted into the coal chamber until it hits the top of the coke layer, and the length is measured in this way.

An object of the present invention is to provide a method that makes it possible to accurately fix the amount of coal in a coke oven.

Means for Solving the Unlucky Point The present invention pushes out the coke in the coal chamber from one end of the coal chamber by a pushing member, and detects the height of the coke layer at the other end of the coal chamber with a height detector. , the moving position of the extrusion member is detected by a position detector, and the height of the coke layer in the length direction from one end of the coal chamber to the other end is measured based on the outputs of the height detector and the position detector. This is a method for measuring coal loading in a coke oven, which is characterized by:

In a preferred embodiment, a plurality of carburizations are formed in the upper part of the coal chamber at intervals in the longitudinal direction of the coal chamber, and the carbonization from each carburization hole is determined based on the measured coke layer height. It is characterized in that the amount of coal is controlled so that the height of the coke layer is uniform in the length direction of the coal chamber.

According to the present invention, when coke is pushed out from the coal chamber by the push-out member, the height of the coke layer is detected by the height detector, and the position of the push-out member is detected by the position detector. . This makes it possible to measure the height distribution of the coke layer over the length of the coal chamber. Therefore, it becomes possible to adjust the coal to be charged next.

As a result, it is possible to determine the appropriate value for coal loading in order to reduce the amount of heat of carbonization in a coke oven, and to perform sufficient quality control to determine the degree of thermal decomposition of tar. becomes possible.

Embodiment FIG. 1 is a simplified cross-sectional view of one embodiment of the present invention. The coke oven 1 has a charcoal chamber 2 formed therein, and a plurality of charcoal charging holes 3 are formed in the upper part of the charcoal chamber 2 at equal intervals in the longitudinal direction of the charcoal chamber (horizontal direction in FIG. 1). ing. In the upper part of the coke oven 1, a charging coal rrL4 is movable perpendicularly to the longitudinal direction of the coal chamber 2. The coal loading car 4 has a hopper 5,
Each coal loading hole 3 has a gunpa 6, and by opening and closing the gunba 6, the amount of coal supplied from the hopper 5 through the coal charging hole 3 and from the coal chamber 2, that is, the coal loading amount is adjusted by yJ.

After the coal is loaded into the coal chamber 2, the upper part of the coal, indicated by reference numeral 7, is leveled by a leveling member 6 so that it is uniform in the length direction. This leveling member 6 and the driving means 8 that drives this leveling member 6 constitute a leveler (3), and this leveler allows the height of the charged coal to be adjusted in the length direction, that is, in the furnace length direction, as described above. The upper part 7 of the coal becomes almost uniform.The upper part 7 of the coal is directly below the charging holes 3, between the charging holes 3, or near the door 9 at one longitudinal end of the coal chamber 2 or the door 10 at the other end. , the charging density is different, and the distribution of the coal loading is not exactly uniform in the length direction.During carbonization, the volume decreases in inverse proportion to the charging density, and in the state of coke, the distribution of coal loading is not exactly uniform in the length direction. The specific gravity is relatively uniform, and the coke height distribution corresponds to the coal loading distribution.

After the carbonization is completed, the doors 9 and 10 are opened, and the extrusion member 11 is driven by the driving means 12 to push the extrusion member 11 into the charcoal chamber 2. As a result, the coke becomes id car 13
The train is loaded onto the lower I11 train via the train. A leveling member 6, a driving means 8 for driving it, and an extrusion member,
The means 12 for driving the pushing member 9 is located at one end of the charcoal chamber 2 and is movable in a direction perpendicular to the length of the charcoal chamber. Moreover, on the other end side of the coal chamber 2, the id wheel 13 and the ? The iY engine 14 is movable in a direction perpendicular to the length direction of the charcoal chamber 2.

The idle car 13 is the shutter 1 that leads the coke to extinguish *+4
5.

In order to detect the height of the coke layer where coke is discharged from the coal chamber 2, height detection 2; 16 is installed on the shutter 15.
installed at the top of the Further, the driving means 1 of the extrusion member 11
A position detector 17 is provided to detect the longitudinal movement position of the charcoal chamber 2 by the charcoal chamber 2 .

FIG. 2 is a block diagram showing the electrical configuration of the present invention.

The height detector 1G for detecting the height of the coke layer is
Laser beams TA18 and 19 arranged in the width direction of the coal chamber 2 (left-right direction in FIG. 2, vertical direction to the plane of the paper in FIG. It has a cylindrical lens 20, 21 that irradiates the laser beam from the upper part 7 of the coke, a lens 22 that guides the laser beam from the upper part 7 of the coke, and a one-dimensional image sensor 23 that receives the reflected light from the lens 22 and converts it into an electrical signal. An image at a position 24.25 where the upper part 7 is irradiated with laser light from a laser light source 18.19 is formed on the one-dimensional image sensor 23, and the interval X between the images is the distance J! between the lens 22 and the upper part 7!
It is a value related to 1.

, i1' 1 = aX +b
・=<1) Here, a and b are constants. lens 23
The distance between this and the bottom of charcoal chamber 2! 72, and the distance J between the bottom and ceiling of charcoal chamber 2! 3 is known. Therefore, the height of the top 7 of the coke in the coal chamber 2! 4 and the distance between its upper part 7 and the ceiling of the charcoal chamber 2! 5 can be determined by calculation.

14=ノ2-! 1...(2)-e
s=13-J? 4 = 13) A signal representing the distance No. 1 detected by the image sensor 23 is input to the processing circuit 27.

The output from the position detector 17 is also input to the processing circuit 27 . The processing circuit 27 visually displays the height of the coke layer in the longitudinal direction of the coal chamber, ie, e4, as shown in FIG. 3 by means of a display 28. After measuring the height of the coke layer in this way, in order to reduce the amount of heat of carbonization in the coke oven,
In addition, in order to control the degree of thermal decomposition of tar, the amount of coal charged into the coal charging hole 3 is controlled by the gunpa 6, and the height of the charged coal is made uniform in the furnace length direction. It is possible to do something.

Furthermore, the processing circuit 27 calculates the product of the height of the coke layer at each position in the length direction of the charcoal chamber 2 and the length of the charcoal chamber. The shape and size of the cross-sectional area in the length direction can be measured.

Height detector 16 may be realized by other configurations.

Effects As described above, according to the present invention, it becomes possible to measure the amount of coal loaded in a coke oven at a high tl: degree, and thereby it is possible to reduce the amount of heat of carbonization in a coke oven.
As time goes by, it becomes possible to understand the volume of the space above the coke in the coal chamber, which is related to the degree of thermal decomposition of tar, and therefore the influence of tar residence time, allowing for sufficient quality control. .

[Brief explanation of the drawing]

ttS1 is a sectional view of one embodiment of the present invention, and FIG.
A block diagram illustrating the electrical VT command of the embodiment shown in the figure,
FIG. 3 is a diagram showing a mode displayed by the display 28.

Claims (2)

[Claims] (1) The coke in the charcoal chamber is pushed out from one end of the charcoal chamber by a pushing member, and at the other end of the charcoal chamber, the height of the coke layer is detected by a height detector, and the pushing member is moved. The position is detected by a position detector, and the height of the coke layer in the length direction from one end of the coal chamber to the other end is measured based on the outputs of the height detector and the position detector. Characteristic method for measuring the amount of coal in a coke oven. (2) Multiple coal charging holes are formed in the upper part of the coal chamber at intervals in the longitudinal direction of the coal chamber, and based on the measured value of the height of the coke layer, the coal charging holes from each coal charging hole are Claim 1, characterized in that the amount of coke is controlled so that the height of the coke layer is uniform in the length direction of the coal chamber.
Method for measuring the amount of coal loaded in a coke oven as described in .