JPS62156194A - Automatic fuel layer detector in gas producer - Google Patents

Abstract

PURPOSE:The titled layer detector in which an automatic poker lifter is set above the poking hole in the gas producer and the output power when the poker is pushed into the fuel layer is converted into the load so that the hardness of the fuel is determined whereby the power consumption is reduced and the gas producer is kept safe. CONSTITUTION:When the fuel layer is monitored in a gas producer, an automatic poker lifter which can regularly lift the poker 14 in a certain interval is set above the poking hole and the output power of the motor shaft 16 is measured, when the poker 14 is pushed into the fuel layer by means of the motor 16. The output power is converted into a load with a converter to determine the hardnesses in individual fuel layers using the automatic layer detector B. It is preferred that a radiation pyrometer 19 is set to measure the surface temperature of the poker 14.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an automatic well logging device for a gas generating furnace, and more specifically, it relates to an automatic well logging device for a gas generating furnace. This invention relates to an automatic well logging device that performs automatic and quantitative well logging.

[Conventional technology]

A gas generating furnace is a device for producing gas generating furnace, and usually uses coke or coal with a particle size of about 10 to 50 m11 as a raw material, and uses a mixed gas of air and steam (plast gas) as a gasifying agent. The reaction is carried out at a temperature within the temperature range (1,000 to 1,300°C) that does not cause clinker damage, and the raw materials are introduced into the furnace from above and are gasified as they descend, turning into ash and flowing to the bottom of the furnace. more excreted,
On the other hand, the gasifying agent is continuously supplied from the bottom of the furnace.

The structure of such a gas generating furnace and the state of the fuel layer during operation will be explained below using FIG. 1, which is a structural diagram of a gas generating furnace applied to the present invention.

That is, 1. Gas generating furnace A is mainly fuel bunker 1.
, electromagnetic feeder 2, measuring tank 3, coal feeder 4, poking hole 5, jacket boiler 6, grate 7, ashtray 8
and an ashtray drive machine 9. In the operation of the gas generating furnace A, an operation called logging is normally performed every 2 to 4 hours to protect the furnace and maintain and manage its operation. This logging is carried out by a person opening the steam valve installed in poking hole 5 at the top of the furnace and applying a steam curtain to prevent the generated gas from coming out of the furnace. Open the lid and poke hole 5
Insert a logging rod (not shown) into the gas generating furnace around the grate 7 and up to the top of the grate 7, and detect failure of clinker (baked and solidified lump) formation by the resistance during insertion. At the same time, the logging rod is usually pulled up after 1 to 2 minutes, and the position of the oxidized layer inside the furnace is detected by observing the infrared light of the logging rod, and the Iγ thickness of the ash layer inside the furnace is measured. . Here, the drift of the thickness of the ash layer is given by Great 7
The thickness is desirably up to a height of about 0.3 m from the top. If it is thicker than this, the rotation speed of the ash @ 8 is increased by the ashtray driver 9 to increase the amount of ash extracted. The thickness of the ash layer is adjusted by slowing down the rotational speed of the ashtray 8 to leave a sufficient amount of ash to be extracted.

In addition, if clinker formation is detected, a so-called poking operation is performed to break down the clinker with a logging rod (polking rod), and sometimes the amount of blown steam is increased to lower the temperature inside the furnace to a temperature at which clinker does not form. It is necessary.

[Problem that the invention seeks to solve]

However, human logging operations involve sensory elements and have uncertainties, and the sealing of the poking holes inside and outside the gas generating reactor with steam curtains may be incomplete due to operational errors. , - Since the generated gas containing carbon oxide gas leaks, it is preferable that this process not be performed by humans.

In addition, considering that each gas generator has 4 to 6 poking holes and logging is performed for each hole every 2 to 4 hours, the time required for logging is quite long. It turns out.

The present invention was made against the background of such conventional technical problems, and by automating the conventional well logging operation by having a machine perform it, it frees humans from the long time consuming well logging operation, and further improves the conventional well logging operation. An object of the present invention is to provide an automatic stacking device for a gas generating furnace that can quantify qualitative well logging results and handle them quantitatively.

[Means for solving problems]

That is, the present invention provides an apparatus for performing well logging operations in a gas generating furnace, in which an automatic logging rod elevator having a control function for periodically raising and lowering the logging rod is installed above the poking hole of the gas generating furnace. At the same time, when the logging rod is pushed into the fuel layer by an electric motor, the shaft output power of the motor is measured by a detector, and the measured shaft output power is converted into a load by a converter to measure the hardness of each layer of the fuel layer. The present invention provides an automatic logging device for a gas generating furnace characterized by the following features.

[Effect]

The present invention makes it possible to mechanically insert and lift a logging rod into a fuel layer using an automatic logging rod elevator, and at this time, the automatic logging rod elevator is operated by an electric motor and the shaft output power of the motor is detected. By doing this, the hardness of the fuel layer can be measured and logging operations can be performed automatically and quantitatively. Furthermore, by measuring the surface temperature of this logging rod, it becomes possible to measure the temperature of each fuel layer.

〔Example〕

Hereinafter, the present invention will be explained in more detail using the drawings.

FIG. 1 is a structural diagram of a gas generating furnace applied to the automatic well logging device of the present invention, FIG. 2 is a side configuration diagram of the automatic well logging device, which is an embodiment of the present invention, and FIG. Plan configuration diagram, 4th
Figure a is a relationship diagram showing the relationship between fuel layer hardness and fuel layer thickness, and Figure 4 is a relationship diagram showing the relationship between fuel layer temperature and fuel layer thickness.

The automatic well logging device of the present invention is used, for example, as an automatic well logging device for a gas generating furnace as shown in FIG.

The automatic well logging device of the present invention will be explained below with reference to FIGS. 2 and 3. This device has a function of adjusting the logging direction in the reactor, a function of raising and lowering the logging rod, and a function of moving the logging rod to fuel. It has a function to measure the hardness of each layer of the fuel layer when pushing it into the layer, a function to measure the surface temperature of each part of the logging rod when it is pulled up from the fuel layer, a function to display the measurement results, and a function to display the measurement results. It consists of an automatic control function.

That is, the automatic well logging device B of the present invention mainly includes a tilting air cylinder 10, a turning air cylinder 11, a support bin 12, a lower turning table 13, a logging rod 14, a chain 15, an electric motor 16, and a poking hole cover 17. , an air cylinder 18 for opening and closing the lid, and a radiation thermometer 19.

Here, the stacking direction inside the gas generating furnace A is adjusted so that the automatic well logging device B is tilted using the support pin 12 as a fulcrum by the tilting air cylinder 10 (tilt range θ), and The automatic well logging device B is configured to rotate using a rotating air cylinder 11 and a lower rotating table 13 (swivel range e').

The j* layer rod 14 is raised and lowered by an electric motor 16 that can rotate in forward and reverse directions via a chain 15 connected to this logging rod 14. However, before pushing the logging rod 14, it is necessary to A mechanism in which the poking hole cover 17 is opened by the cover opening/closing air cylinder 18 and the logging rod 14 is pushed in after a steam curtain is applied to the gas generator (see figure) to prevent the gas generated from the gas generating furnace from leaking out. It has become.

Conversely, after the logging rod 14 is lifted out of the furnace, the poking hole cover 17 is closed and the steam curtain is stopped. The hardness of each layer of the fuel layer of the gas generating reactor A is determined by utilizing the fact that when pushing the logging rod 14 into the fuel layer, the amount of work of the electric motor 16 increases or decreases in proportion to the hardness of the fuel layer. The shaft output power (current) is continuously measured by a detector (not shown), and the hardness of each layer of the fuel layer can be determined from the pushing speed of the logging rod 14. That is, the distance from when the logging rod 14 touches the surface of the fuel layer of the gas generating furnace until the logging rod 14 is pushed in and stops at a height near the grate 7, the time required, and the measured shaft output power value. (10 to 1,000 pieces of data per second, preferably 50 to 200 pieces of data) are processed by computer,
It is possible to determine the hardness of each layer of the fuel layer.

Similarly, the temperature of each layer of the fuel layer of the gas generating reactor A is determined by the radiation thermometer 19 built into the automatic logging device B when the logging rod 14 is heated to the temperature of each layer of the fuel layer. The surface temperature of each part of the logging rod is continuously measured, and the temperature of each layer of the fuel layer is determined from the pulling speed of the logging rod 14. That is, the distance from when the logging rod 14 stopped in the fuel layer starts to be pulled up until it leaves the surface of the fuel layer, the time required, and the measured logging rod surface temperature (10 to 1,000 logging rods per second, preferably 50-2
00) is processed by computer to determine the temperature of each layer of the fuel layer.

Thus, the operating steps of the automatic well logging device of the present invention are as follows: - Adjustment of the logging direction - Opening the steam valve (starting the steam curtain) - Opening the poking hole cover - Inserting the logging rod into the fuel layer Pushing in (hardness measurement), ■ Stopping and holding the logging rod in the fuel layer, ■ Lifting the logging rod from the fuel layer (temperature measurement), ■ Closing the poking hole lid, ■ Closing the steam valve (steam curtain ends) ), ■The order in which well logging results are displayed. Each of the above steps is automatically performed by a sequencer and a timer, and the appropriate lifting and lowering speed of the logging rod in steps (1) and (2) is 10 to 100 cm/sec.
The stopping and holding time of the logging rod in the fuel layer in step ① is 60~
Approximately 180 seconds is appropriate. Further, when one well logging operation from step (2) to step (2) is completed, the timer returns to adjusting the well logging direction in step (2) after a certain period of time, and the well logging operation in the other direction is started. In the embodiment of the present invention, logging operations in four directions are performed sequentially.

Next, an example of computer-processed well logging results according to the present invention will be described with reference to FIGS. 4a and 4b.

FIG. 4 a y b is an example of a display that is displayed from a computer every time a well logging operation is performed as a display of the stacking result of step (2), and the hardness distribution and temperature distribution of each layer of the fuel layer are displayed. Among these, the hardness distribution of each layer of the fuel layer is shown in Figure 4a. When there is no sign of talin car formation, the hardness gradually increases from the surface of the fuel layer to the vicinity of the grate, as shown by the solid line. Or, there is almost no change, but when clinker is generated, the hardness becomes extremely hard with a peak at the point where the talin force is generated, as shown by the dotted line.

In addition, the temperature distribution in each layer of the fuel layer is a curve with a peak, as shown in Figure 4, and this peak (maximum temperature height) corresponds to the oxidized layer of the fuel layer. The ash layer would be at a lower height than this. Therefore, the thickness of the ash layer can be determined from the height of the maximum temperature, and this height is 0.2 to 0.
．． It is desirable that the height is about 4 m, and if it is less than this, as shown by the solid line, the amount of ash extracted must be reduced, and conversely, if it is greater than this, as shown by the dotted line, it is necessary to increase the amount of ash extracted.

〔Effect of the invention〕

As described above, the automatic well logging device according to the present invention automatically and quantitatively performs well logging operations conventionally performed by humans.
This means that humans only have to monitor the computer-processed well logging results in the control room, and this is of great industrial significance in terms of labor savings and safety.

[Brief explanation of drawings]

Fig. 1 is a structural diagram of a gas generating furnace used in the automatic well logging device of the present invention, Fig. 2 is an embodiment of the present invention and is a side configuration diagram of the automatic well logging device, and Fig. 3 is a diagram showing the structure of the automatic well logging device. Plan configuration diagram, 4th
Figure a is a relationship diagram showing the relationship between fuel layer hardness and fuel layer thickness, and Figure 4 is a relationship diagram showing the relationship between fuel layer temperature and fuel layer thickness. 5; Polking hole 7; Grate 14; Logging rod 16; Electric motor 19; Radiation thermometer Patent applicant Mitsubishi Kakoki Co., Ltd. Patent applicant Kansai Thermal Chemical Co., Ltd. Representative Patent attorney Takashi Shirai Shigedai 2 @ 11 Turning Worker 7-Cylinder

Claims (2)

[Claims] (1) In a device that performs well logging operations in a gas generating furnace, an automatic logging rod elevator with a control function to periodically raise and lower the logging rod is installed above the poking hole of the gas generating furnace; When the logging rod is pushed into the fuel layer by an electric motor, the shaft output power of the motor is measured by a detector, and the measured shaft output power is converted into a load by a converter to measure the hardness of each layer of the fuel layer. An automatic logging device for gas generating furnaces, which is characterized by the following: (2) An automatic logging device for a gas generating furnace according to claim 1, which is equipped with a radiation thermometer capable of measuring the surface temperature of the logging rod.