JP2004183956A - Tuyere camera mounting device of waste melting furnace - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mount a tuyere camera so that a field of view suitable for monitoring can be obtained. <P>SOLUTION: This tuyere camera mounting device of a waste melting furnace comprises a male connection cylinder 1 fitted to a tuyere air blow pipe having an axis generally aligned with the axis of a tuyere and having a male tapered surface 1a for fitting formed in the outer surface thereof and a sight glass 1b at the tip thereof, a female connection cylinder 2 having a female tapered surface 2a fitted to the male tapered surface 1a of the male connection cylinder 1 formed on the inner surface thereof, a tuyere camera holding stand 4 holding a tuyere camera 3 so that the center of the field of view of the tuyere camera 3 can be positioned on the axis of the female connection cylinder 2, and a joint 5 connecting the female connection cylinder 2 to the tuyere camera holding stand 4 and capable of fine adjusting the direction of the center of the field view of the tuyere camera 3. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a tuyere camera mounting device for a waste melting furnace.
[0002]
[Prior art]
In the operation of the waste melting furnace, the state of combustion and melting in the melting furnace is monitored by a monitoring camera in order to stably operate the waste melting furnace.
[0003]
Such monitoring of the melting furnace is performed through a tuyere that blows an oxygen-containing gas for combustion into the melting furnace, and a monitoring camera for that purpose is called a tuyere camera.
[0004]
FIG. 3 is a view showing a position where the above-mentioned tuyere camera is arranged, and an oxygen-containing gas supply pipe 24 (hereinafter referred to as a tuyere blow pipe) connected to a tuyere 23 arranged on a furnace wall 22 of a melting furnace 21. A branch pipe 25 for monitoring the condition inside the furnace through the tuyere 23 is provided halfway through the tuyere 23, and a tuyere camera 26 is arranged at the end of the branch pipe 25.
[0005]
FIG. 4 is a diagram showing a mechanism for disposing the tuyere camera 26 at the pipe end of the branch pipe 25.
At the end of the branch pipe 25, a glass viewing window 28 is provided via an opening / closing valve 27. The tuyere camera 26 is positioned in front of the viewing window 28 to monitor the inside of the furnace. The opening / closing valve 27 is for preventing the blowing gas from being blown out when removing the viewing window at the time of cleaning or replacement of the viewing window 28, or for preventing the viewing window 28 from becoming dirty when monitoring is not being performed. Yes, open when monitoring, but closed when not monitoring.
[0006]
The viewing window 28 is used not only for monitoring the operating state of the furnace, but also for visually inspecting the tuyere 23. Then, when performing a visual inspection of the tuyere 23, it is necessary to move the tuyere camera 26 from the pipe end position of the branch pipe 25. For this reason, the tuyere camera 26 is supported via a camera platform 32 by a rotating arm 31 that horizontally rotates around a vertical axis 30 fixed to the branch pipe 25 with a U-bolt 29 in the related art. Each time the mouth 23 is visually inspected, the turning arm 31 is turned so as to move away from the end of the branch pipe 25.
[0007]
When the visual inspection is completed, the turning arm 31 is turned in the opposite direction so that the tuyere camera 26 is positioned at the end of the branch tube 25.
[0008]
At this time, the center of the field of view of the tuyere camera 26 is set so as to be located substantially on the axis of the tuyere 23, but a slight shift of the field of view is caused by the camera platform 32 used for a normal camera tripod. It is adjusted (for example, see Patent Document 1).
[0009]
[Patent Document 1]
Registered Utility Model No. 30024383
[Problems to be solved by the invention]
However, the conventional apparatus for attaching the tuyere camera described above to the branch pipe of the oxygen-containing gas supply pipe has the following problems.
[0011]
Although the field of view of the tuyere camera can be finely adjusted by the pan head, since there is no adjusting means for adjusting the stop position of the rotating arm supporting the tuyere camera, 2 m from the position where the tuyere camera is arranged It is difficult to grasp the field of view of the tuyere tip far away as the optimal field of view for monitoring only by adjusting the camera platform.
[0012]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a tuyere camera mounting device for a waste melting furnace that allows easy fine adjustment of a visual field. .
[0013]
[Means for Solving the Problems]
The tuyere camera mounting device for a waste melting furnace according to the present invention is mounted on the tuyere air duct so that the axis thereof substantially coincides with the axis of the tuyere. A male connection cylinder having a viewing window, a female connection cylinder having a female taper surface fitted on the inner surface with the male taper surface of the male connection cylinder, and the center of the field of view of the tuyere camera is the female connection cylinder. The tuyere camera holder for holding the tuyere camera, the female connection cylinder and the tuyere camera holder are connected so as to be located on the axis of the connecting cylinder, and the direction of the center of the field of view of the tuyere camera is finely adjusted. And an adjustable joint.
[0014]
Further, the joint is a universal joint or a spherical joint.
[0015]
In the tuyere camera mounting device for a waste melting furnace according to the present invention, the tuyere is always fitted by fitting the female taper surface of the female connection cylinder to the male taper surface of the male connection cylinder. The tuyere camera can be attached to the tuyere air duct such that the center of the camera's field of view is substantially coincident with the tuyere axis.
[0016]
Also, even when the direction of the center of the field of view of the tuyere camera is slightly deviated from the axis of the tuyere, it can be made to match the axis of the tuyere by making fine adjustments with a universal joint or spherical joint. In addition, the state of combustion and melting in the waste melting furnace can be monitored accurately.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an embodiment of a tuyere camera mounting device for a waste melting furnace according to the present invention. This tuyere camera attachment device is attached to a branch pipe 25 branched from the tuyere air duct 24 so that the axis thereof substantially coincides with the axis of the tuyere 23, and a male taper surface 1a for fitting is provided on the outer surface. A male connection cylinder 1 having a viewing window 1b at the tip, a female connection cylinder 2 having a female taper surface 2a fitted on the inner surface with the male taper surface 1a of the male connection cylinder 1, and a tuyere camera The tuyere camera holder 4 for holding the tuyere camera 3 and the female connection cylinder 2 and the tuyere camera holder 4 are connected so that the center of the field of view 3 is located on the axis of the female connection cylinder 2. And a universal joint 5 capable of finely adjusting the direction of the center of the field of view of the tuyere camera 3.
[0018]
The tuyere camera mounting device will be described in detail. In the universal joint 5, pins 5a provided on both sides in the horizontal direction of the universal joint 5 are fitted into pin holes provided on both sides in the horizontal direction of the female connection cylinder 2, It is rotatable up and down around the pin 5a. Further, the tuyere camera holding base 4 is rotatable in a horizontal direction around pins 5b provided on both sides of the universal joint 5 in the vertical direction.
[0019]
Therefore, the center direction of the field of view of the tuyere camera 3 on the tuyere camera holding base 4 can be finely adjusted in the vertical and horizontal directions by the universal joint 5.
[0020]
When the fine adjustment is completed, the holding member 6 provided on the female connection cylinder 2 and the holding member 7 provided on the tuyere camera holding base 4 so that the center direction of the field of view of the tuyere camera 3 does not deviate from the adjusted direction. The adjustment bolt 8 supported by the above is screwed in, and the coil spring 9 disposed between the holding members 6 and 7 is given an elastic force to fix the coil spring 9 in the vertical direction. Although not shown, they are similarly fixed in the horizontal direction.
[0021]
Further, the male connecting cylinder 1 and the female connecting cylinder 2 are always fitted to each other with their fitting surfaces so that the axis of the female connecting cylinder 2 always substantially coincides with the axis of the male connecting cylinder 1 and thus the tuyere 23. Therefore, the center of the field of view of the tuyere camera 3 can be directed to the axial direction of the tuyere 23 by a slight fine adjustment by the universal joint 5.
[0022]
Therefore, the state of combustion and melting in the waste melting furnace can be accurately grasped.
[0023]
FIG. 2 is a view showing an example in which the female connection cylinder 2 and the tuyere camera holding base 4 are connected by the spherical joint 15 in the tuyere camera mounting device of the present invention. Also in this case, the spherical joint 15 allows fine adjustment in the center direction of the field of view of the tuyere camera 3 in all directions.
[0024]
【The invention's effect】
According to the present invention, the center direction of the field of view of the tuyere camera can always be made substantially coincident with the axis of the tuyere, and even when the center is slightly deviated from the axis of the tuyere, it can be finely adjusted with a universal joint or a spherical joint. By adjusting, it is possible to match the axis of the tuyere, so that the state of combustion and melting in the waste melting furnace can be monitored accurately.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of a tuyere camera mounting device for a waste melting furnace according to the present invention.
FIG. 2 is a view showing an example in which the female connection cylinder and the tuyere camera holding base are connected by a spherical joint in the tuyere camera mounting device of the present invention.
FIG. 3 is a view showing a position where a tuyere camera is arranged.
FIG. 4 is a view showing a mechanism for disposing a conventional tuyere camera at a pipe end of a branch pipe.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Male connection cylinder 1a Male taper surface 1b Viewing window 2 Female connection cylinder 2a Female taper surface 3 Tuyere camera 4 Tuyere camera holding base 5 Universal joints 5a, 5b Pins 6, 7 Holding member 8 Adjusting bolt 9 Coil spring 15 Spherical joint

Claims (2)

A male connection cylinder attached to the tuyere air duct such that the axis is substantially coincident with the axis of the tuyere, a male taper surface for fitting on the outer surface, and a sight glass at the tip, and the male connection cylinder on the inner surface. And a tuyere camera so that the center of the field of view of the tuyere camera is located on the axis of the female connection cylinder. Waste melting characterized by comprising a tuyere camera holding base to be connected, a joint connecting the female connection cylinder and the tuyere camera holding base, and capable of finely adjusting the direction of the center of the field of view of the tuyere camera. Furnace tuyere camera mounting device. The tuyere camera mounting device for a waste melting furnace according to claim 1, wherein the joint is a universal joint or a spherical joint.

Images