JPH0324192A - Method for measuring temperature of coke in carbonizing chamber - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for measuring coke (temperature in coal) in a coke oven carbonization chamber. [Prior Art] In general, in chamber coke ovens, there is a trend towards uniform coke quality in the longitudinal and height directions of the coking chamber, as well as energy savings by regular carbonization. To achieve this objective, it is first necessary to understand the actual temperature (temperature rise) in the coal and its product quality. Insert the thermocouple vertically into the carbonization chamber from the charging port.

How to pull the thermocouple compensation lead out of the furnace from the charging port (Coke Circular, VOL.25.19711 P
．． l73) Or ■ An iron basket with a protective tube attached to it is hung vertically from the charging port in the carbonization chamber before coal is inserted. After that, a thermocouple is inserted into this protection tube, and then coal is charged.

Method of pulling the thermocouple compensation wire out of the furnace from the charging port (Coke Circular, VOL. 29, 1980, P. 2)
09).

etc. are used. [Problems to be Solved by the Invention] However, these measurement methods have the following problems. First, in the method of setting the thermocouple inserted into the protective tube from the charging port, it is difficult to guide the thermocouple terminal to the desired position due to the resistance of the charging coal because it is inserted vertically into the coal. The position of the thermocouple cannot be guaranteed. In addition, since it is set from the charging port, it is only possible to measure the temperature directly below the charging port, making it impossible to measure the overall temperature over time. In addition, with the method of hanging the basket, it is not possible to measure the overall temperature over time as described above, and since the basket to which the thermocouple is attached is made of iron, the influence of heat transfer through the basket This method has disadvantages, such as the fact that it appears in the measured temperature. The present invention measures the overall temperature over time, which is a drawback of conventional temperature measurement methods, and also measures the temperature in coal at a fixed point without changing the set position of the thermocouple and detects abnormalities. The purpose is to provide a measurement method. [Means for Solving the Problems] The present invention covers a body that carbonizes or vaporizes and disappears as the heat is increased by carbonization with a heat insulating material, and also arranges a plurality of thermocouples in the frame to perform carbonization in a coke oven. Along with charging it indoors,
The purpose is to charge coal into the gap and detect the temperature inside the coal during the carbonization process.

Hereinafter, the method for measuring the temperature of coke in a carbonization chamber according to the present invention will be described in detail with reference to FIG.

In the figure, 1 is the carbonization chamber of the coke oven, which has multiple charging ports 2 at the top, 3 is the coke extrusion (pusher) side,
4 is the coke discharge side (coke side). First, outside the carbonization chamber 1, construct a frame 5 made of wood, heat-resistant brass, etc. that is smaller than the inner cross section of the carbonization chamber 1. As shown in FIG. 2, a plurality of thermocouples 6 are arranged on the frame 5, and the compensating conductors 7 of the frame 5 and the thermocouples 6 are made of slag wool, heat-resistant sheet, plastic sheet, etc. insulation material (not shown).

The frame 5 may have a triangular or quadrangular cross section as appropriate. The frame 5 assembled in this manner is transported to the extrusion side and the discharge side of the carbonization chamber 1, and is pushed into at least one frame by a Jinrikisha, or by an extruder or a special jig (not shown). 5 is placed in the carbonization chamber 1.

At this time, the compensating lead wire 7 of the thermocouple 6 is arranged as shown in the figure by suspending a guiding and locking wire from the charging port 2 and locking the compensating lead wire 7 thereto. Moreover, this arrangement may be connected to the recorder 8 via doors on the extrusion side and the discharge side. After making preparations in this way, coal is dropped into all gaps from charging port 2 to fill them. Next, carbonization heating is carried out as usual, and the temperature inside the charged coal during the carbonization process is detected by recorder 8. During this process, the thermocouple 6 is initially held by the frame 5, and when the frame 5 carbonizes or disappears, the thermocouple 6 is held by the coal or coke being carbonized to ensure a fixed point. When the detected temperature is low (abnormal) in a part of a specific flue, measures are taken to raise the temperature of the flue corresponding to that part to make the entire carbonization chamber uniform. Further, since the frame of the coke carbonized in this manner is carbonized or disappears, it can be used as a product only by recovering the compensating conductor and the heat insulating material that are mixed in the coke.

[Example] After a thermocouple support frame divided into four units was charged into a carbonization chamber by the above method, coal was charged and the progress of carbonization throughout the entire carbonization chamber was measured.

As a result, it was found that carbonization at both ends of the carbonization chamber was slow. Therefore, by increasing the heat of the flues at both ends to achieve uniform carbonization in the carbonization chamber, it was possible to reduce variations in coke quality (DI, CSR) and reduce the amount of heat of carbonization.

[Effects of the Invention] As described above, in the method of the present invention, the temperature in the coal during carbonization of coke can be measured with high accuracy at multiple points and at fixed points, so that temperature changes in the coal can be accurately grasped. The measurement method is also extremely simple, as the thermocouple is kept in place during the early stages of carbonization, and is kept in the charged coal during the middle to final stages. Furthermore, carbonization operation management can be optimized and the quality of the coke obtained can be expected to improve, which is a significant effect.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the method of measuring the temperature of coke in a carbonization chamber according to the present invention, and FIG. 2 is an explanatory view of the frame, in which (a) shows a plane, (opening) shows a cross section, and (c) shows a side. 1... Carbonization chamber, 2... Charging port, 3...
Coke extrusion side, 4... Coke discharge side, 5... Frame, 6... Thermocouple, 7... Compensation lead wire, 8... Recorder. 4 others

Claims (1)

[Claims] 1. The frame body, which carbonizes or vaporizes as it heats up by carbonization, is covered with a heat insulating material, and a plurality of thermocouples are arranged on the frame body, and the frame body is charged into a coke oven carbonization chamber, and the coal is inserted into the gap. 1. A method for measuring temperature of coke in a carbonization chamber, characterized by charging the coke and detecting the temperature inside the coal during the carbonization process of the coal.