JPS5925871Y2 - Coke oven carbonization chamber wall temperature measuring device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a coke oven carbonization chamber wall temperature measuring device.

For example, one group of a commonly used two-part coke oven (
There are approximately 3,000 combustion chambers (100 rows of combustion chambers x 30 chambers in the furnace length direction), and if this temperature distribution is significantly different from the predetermined temperature distribution, it will cause a wide variation in the coke carbonization time, and the As a result, this has serious negative effects on coke oven operation, such as a decrease in production, a decrease in coke quality, and an increase in unit heat consumption.

Conventionally, when trying to find out the temperature distribution of one row of combustion chambers, an operator had to measure the bottom temperature of about 30 combustion chambers in all chambers using, for example, a thermometer; ~5
It takes 0 minutes.

If gold measurements were to be carried out on a single day, it would be impossible to do so without deploying a considerable number of workers.

Therefore, to measure the temperature of the coke oven combustion chamber, select 2 to 4 combustion chambers per row in the oven length direction, measure all the selected combustion chambers, and estimate the temperature of the combustion chambers that are not measured.
I was in charge of combustion management.

With this control method, the temperature distribution in each combustion chamber was not known, which led to wide fluctuations in the coke carbonization time as described above.

In view of these circumstances, the inventors of this invention first filed a patent application in 1983-9.
No. 073 (see Japanese Patent Publication No. 58-35555) states that the temperature of the combustion chamber of a coke oven and the temperature of the wall of the coking chamber have a certain bias, and that coke oven operation management can be carried out based on the temperature of the brick wall of the coking chamber. Focusing on this, we provided a method for measuring the wall temperature of a coke oven carbonization chamber, in which a wall temperature sensor is installed on the ram of a coke oven extruder, and the movement of the ram is utilized to continuously measure the horizontal wall temperature distribution of the coke oven chamber.

However, in this method, the carbonization chamber temperature is 1000°
In a large coke oven with 100 gates, the extruder is always running, so the detector and its wiring are exposed to high temperatures at short intervals, and the cooling equipment is crowded with people, making maintenance difficult. has.

Furthermore, since an extrusion ram is used, there are limitations on distribution measurement.

The present invention was developed in order to advantageously solve such scattering points, and its purpose is to install a beam in the coke oven extruder that is installed in parallel with the extrusion beam and can move forward and backward independently. , and a wall temperature detector is provided at the tip of the beam.

That is, the ram of the extruder that extruded red-hot coke from the carbonization chamber is projected to the coke side and temporarily stopped, and during this time a non-contact wall temperature sensor is attached to the tip of a beam provided independently on the extruder. By moving the beam back and forth, the temperature distribution on the wall can be measured continuously.

The present invention will be described in detail below based on embodiments shown in the drawings.

As shown in FIG. 1, a two-part coke oven has carbonization chambers 1 and combustion chambers 2 arranged alternately, and one combustion chamber 2 is usually divided into about 30 chambers.

The dried red hot coke 3 is transferred to a pinion 6 connected to a drive motor 5 of an extruder 4 and a rack 8 of an extrusion beam 7.
As a result of the meshing, the extrusion ram 9 fixed to the tip of the extrusion beam 7 moves back and forth to extrude the coke, and the coke is guided by the coke guide car 10 and loaded into the fire extinguisher 11.

In the present invention, as shown in FIG. 2, in the space below the beam 7 of the extruder 4, a beam 15 is disposed which is moved back and forth by a pinion 13 and a rack 14 connected to a drive motor 12 in the same manner as in the coke extruder apparatus. A temperature sensor 16 is attached to the tip of this beam 15, and the extrusion ram 9 pushes out the red-hot coke 3 and temporarily stops it at a position on the coke side side. During this time, the beam 15 is advanced and the coking chamber wall in the furnace length direction is pushed out. Continuously measure the temperature distribution of

In this embodiment, a sub-radiation thermometer was used as the temperature detector 16.

Furthermore, 28 is a ram. After the carbonized red-hot coke 3 is discharged, the temperature of the atmosphere and wall inside the carbonization chamber 1 is approximately 10
Since the temperature was above 00°C, the temperature detector 16 was protected with a cooling jacket.

As shown in FIG. 3, the cooling pipe 17 is connected to the cooling water pipe 18.
and a cooling water return pipe 19, and a cooling water going pipe 17.
As shown in FIG. 4, a signal cable 20 and an air pipe 21 were installed inside.

The air pipe 21 sends purge air to prevent hot dust from adhering to the lens in the detector.

For the cooling piping 17, a steel pipe was used for the part that entered the furnace, and a rubber hose was used for the normally warm part outside the furnace.

As shown in FIG. 3, this rubber hose is wound up by a winding device 22 installed in the extruder as the beam 15 moves back and forth.
I made it possible to rewind.

Cooling water was press-ined by a pressure pump 23, and returned by a cooling water tank 24 for natural cooling and circulation.

Purge air was drawn into the air by connecting an air pipe 21 to a compressor 25, and the air pipe 21 was inserted into the cooling water pipe 18 via a winding device 22 to prevent water leakage.

Further, the signal cable 20 was connected to a recorder 26 via a drawer winding device 22 to prevent water leakage from the cooling water pipe 18.

The position of the recorded temperature distribution in the longitudinal direction of the coking chamber can be determined by installing a proximity switch 27 on the top of the rack 14 of the beam 15 and adjusting the number of teeth of the rack 14 of the beam 15 moving back and forth. The position of the detector 16 was marked on the recorder 26 to make the measurement position in the furnace length direction clear.

In addition, if you want to measure the wall temperature on both sides at once, you can install two temperature detectors, and if you want to change the wall temperature measurement position in the height direction, you can easily measure by changing the angle of the detector. It is possible.

As explained above, according to the device of the present invention, it is possible to clearly measure the temperature distribution on the carbonization chamber wall and record continuous measurement with high precision at any time.In addition, the detector can be easily cooled, which is advantageous for maintenance and has a long service life. This enables highly accurate combustion management and automatic combustion control, improving coke quality and
Productivity and energy saving It can also help save labor.

[Brief explanation of the drawing]

Fig. 1 is a plan sectional view for explaining the coke oven, Figs. 2 to 4 are explanatory drawings for the embodiment, Fig. 2 is a side sectional view of the entire device of the present invention, and Fig. 3 is a sectional view for explaining the coke oven.
The figure is a system diagram of the cooling device, and FIG. 4 is an explanatory diagram of cooling pipes. 1... Carbonization chamber, 2... Heat firing chamber, 3...
...Red hot coke, 4...Extruder, 5,1
2...Drive motor 6.13...Pinion, 7,15...Beam, 8,14...
...Rack, 9,28...Ram, 10...
・・Coke guide car, 11・・・・Fire engine, 16・
...Detector, 17...Cooling piping, 18.
...Cooling water going pipe, 19...Cooling water return pipe, 20...Signal cable, 21...
... Air pipe, 22 ... Winding device, 23 ...
...Pressure pump, 24...Cooling water tank, 2
5...Compressor, 26...Recorder, 2
7...Proximity switch.

Claims (1)

[Scope of utility model registration request] A coke oven carbonization chamber wall temperature measuring device comprising: a coke oven extruder; a coke oven extruder; an independent back-and-forth movable beam installed in parallel with an extrusion beam; and a wall temperature detector provided at the tip of the beam.