JPH0219418B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a coke sample taking device for inspecting the properties of coke produced in the furnace chamber of a coke oven.

<Prior art> Conventionally, this type of coke sample was produced by inserting a wire mesh or a metal can into which coking coal was charged into the furnace chamber through a charging port, an extrusion side port, or a fire extinguishing side port during charging of the coking coal into the furnace chamber. These were recovered during extrusion after the carbonization of charged coking coal, but there were problems with the method of placing coking coal in a wire mesh and dropping it from the coal charging port, and this problem has been resolved. JP-A No. 59-62690 was first proposed.

However, this proposal also has the following problem in that during coke extrusion after carbonization, extrusion is interrupted and coke in the coke cage is taken out as a coke sample.

<Problems to be Solved by the Present Invention> During extrusion, a coke cage has a layer filled with granular coke, and generally when force is applied to a layer of granular material, the force is Since the force is transmitted at the contact point, the force is spread radially.However, this proposal is based on the method of pushing out the coke sample by a cylinder rod that moves back and forth across symmetrical window holes of the same shape. , it requires a large amount of force and breaks the coke sample, which changes its quality and damages the coke cage wall.Furthermore, the cylinder is moved up and down to push out the coke sample in several places. During this time, new problems arise such as increasing the residence time of the extruded beam in the chamber, which may cause the beam to become thermally distorted or warped by the radiant heat from the furnace wall. is posing a problem.

<Means for solving the problems> The present invention solves these problems and also
This system makes it possible to appropriately capture and provide information on the temperature information and coke quality of carbonized coke, which is increasing in the operation of coke ovens due to the value of coke oven carbonization control and the adoption of dry extinguishing methods. The feature is that sample extrusion ports are provided at several locations above and below one side wall of the coke cage, and separate extrusion members that also serve as closures of the extrusion ports are provided on the outside of each extrusion port. The coke sample taking device is characterized in that a radially enlarged sample taking out port, a chute having a door for rotating and closing the taking out port, and a sample receiver are separately provided for each of the extruding members.

<Function> The inventors conducted various studies focusing on the fact that when force is applied to granular material, the force is transmitted through the contact points of the granular material and propagates radially. As a result, they found that the coke particles can be crushed. We have discovered the principle of an apparatus that can take out a predetermined amount of coke sample without fear of bending or damaging the coke cage. Figure 1 shows the principle. When an extrusion member is advanced through an extrusion port provided on the wall of a coke cage and a force is applied to the coke filled in the coke cage, the force is transmitted radially. Angle θ between the radial plane and the line plane perpendicular to the coke cage wall (hereinafter referred to as extrusion angle θ)
As a result of various experiments on
It was found that 16° is preferable. Therefore, if the angle is small, a large pushing force is required and there is a risk of breaking up the coke particles and bending the coke cage. Moreover, if it is large, the opening becomes large and the investment amount for reinforcing the cork cage and opening/closing lid increases, which is not preferable.

Based on this, the outlet d ₂ provided on the wall on the outlet side of the coke cage has a diameter d ₂ > of the extrusion member d ₁ .
It has been confirmed that by setting the size in the relationship of d ₁ +2(tanθ)W, it is possible to sample the coke particles without damaging them and without requiring a large amount of force. Note that W is the width of the coke cage. The sampling amount is V (Kg) =
π/3W (mm) (d ² ₁ (mm) + d ₁ , d ₂ + d ² ₂ (mm)) × M
We also found that it can be expressed as (mass). Therefore, since W is known, d ₁ and d ₂ can be determined by determining the sampling amount required for coke.

<Example> Hereinafter, a detailed description will be given based on the example drawings shown in FIGS. 2 to 5. The upper, middle, and lower positions (any position is fine) of one side wall 2a of the coke cage 1 loaded on the coke guide car 18 Extrusion ports 5a, 6a,
7a, and a cylinder 3 and a rod 4 are provided horizontally outside each extrusion port. The rod 4 has a stroke that traverses the inside of the coke cage 1, and before entering the rod, there are extrusion ports 5a, 6a, 7a at the front of the rod.
is blocked.

The other side wall 2b of the coke cage 1 is provided with outlet ports 5b, 6b, and 7b corresponding to the extrusion ports. Each outlet is determined to satisfy the relationship d ₁ <d ₂ with the diameter of the rod 4. There is a chute 8 on the outside of each outlet.
9 and 10 are attached, and removable sample receivers 11, 12, and 13 are provided on the floor of the coke guide car 18 at the lower end of each chute. Also, at the upper part of each chute, a support member 16 on the holding arm 16 is provided.
The arm 1 holds the outside of the outlet 5b, 6b, 7b by the cylinder system 14 which is pivoted on the shaft 16b.
A door 15 is provided with a chute function and has a U-shaped cross section and is rotated to open and close from below around a shaft support 16c at the tip of the door 15.

In addition, the sample receivers 11, 12, and 13 have a structure that allows them to be sealed after sample collection, and are also constructed with a wall material that isolates heat from the outside, and are equipped with thermocouples or gas sampling tubes inside. It is also possible to perform various measurements on the sample coke within the chamber.

When collecting sample coke, the extrusion operation of the carbonized coke is temporarily suspended and the door 15 is rotated downward by the cylinder system 14 to open and close each outlet 5b, 6b, 7b, and the chute 8, 9, 10 is opened and closed. are formed, and each extrusion port 5a,
The cylinder rod is operated from the outside of 6a and 7a to push out the coke sample. Since each outlet is radially enlarged with respect to the rod 4, the coke can be smoothly extruded without breaking it, and the extruded coke sample passes through each chute into the respective receivers 11, 12, 13 and is collected.

After collecting the coke sample, the cylinder rod 4 is moved backward to close each extrusion port, and the cylinder system 14 is moved above the door 15 to close each outlet from the outside, allowing the carbonized coke to be extruded. resume.

<Effects of the Invention> In the present invention, each outlet is formed by expanding radially with respect to the extrusion member under certain conditions, so each extrusion member is small and requires less force to crush coke in the coke cage. Also, the coke cage can be extruded without breaking it. In addition, since the extrusion members are installed separately on the outside of each extrusion port, the coke in the upper, middle, and lower positions can be extruded at the same time, reducing the interruption time of extrusion of carbonized coke and eliminating the risk of damage to the beam. can do. In addition, each extrusion port is closed by the extrusion member, and the take-out port is opened and closed by rotating the door, so that it is possible to prevent coke from spilling out from the sample extrusion port and take-out port during extrusion of carbonized coke. can.

As described above, by selecting when to interrupt the extrusion of carbonized coke in the furnace chamber, coke at a specific position in the longitudinal direction and height direction of the furnace chamber can be removed under exactly the same conditions as other parts, unlike conventional methods. This has the effect of providing an accurate test sample by taking it out as a sample.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the principle of the sample coke removal device of the present invention, Fig. 2 is an overall plan view, Fig. 3 is the same,
An enlarged front view, Fig. 4 is a side view of the chute and sample receiver, Fig. 5 A is a partial sectional view showing the door opening/closing mechanism, and Fig. 5 B is a view taken from arrow A-A in Fig. 5 A. FIG. In the figure, 1 is a coke cage, 2
a, 2b are the same side walls, 3 is a cylinder, 4 is a rod, 5a, 6a, 7a are extrusion ports, 5b, 6b, 7
b is the outlet, 8, 9, 10 are the chute, 11, 1
2 and 13 are sample receivers, 14 is a cylinder system, 15 is a door, and 18 is a coke guide car.

Claims (1)

[Claims] 1 Sample extrusion ports are provided at several locations above and below one side wall of the coke cage, and separate extrusion members that also serve as closures of the extrusion ports are provided on the outside of each extrusion port, and each of the above-mentioned extrusion members is provided at corresponding positions on the other side wall of the coke cage. What is claimed is: 1. A coke sample taking device, characterized in that a sample receiving port is provided, each having a sample receiving port which is enlarged radially relative to the sample receiving port, a chute having a door for rotating and opening the sample receiving port, and a sample receiver.