JPH0195190A - Method of charging coke oven with waste tire - 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 Field of Application] The present invention relates to a method for charging waste tires into a coke oven.

[Prior Art] The present applicant previously disclosed in Japanese Patent Application No. 82-152040 that a donut-shaped waste tire is charged into the carbonization chamber of a coke oven through a coke extrusion port or a discharge port, and the waste tire is charged into the waste tire charging port. A coke oven that is equipped with a furnace lid, then charges coal into the above-mentioned carbonization chamber through the furnace top coal charging hole, and carbonizes waste tires together with the coal, thereby recovering and using it as fuel gas without controlling the coke production amount. We have shared ten methods of operating a coke oven that can increase the amount of generated gas at low cost.

The method disclosed in Japanese Patent Application No. 62-152040 is to extrude waste tires using a red-hot coke extruder in the carbonization chamber, and then use a red-hot coke extruder in the carbonization chamber, which is heated to about 1000℃ and equipped with a furnace lid on the side of the guide car. A doughnut-shaped rolling guide for waste tires is installed between the bottom of the carbonization chamber and a working floor of the coke extruder at a position higher than the bottom of the carbonization chamber, and the waste tires are moved from the extruder working floor to the rolling guide. It is placed on top of the coke oven and rolled into the coke chamber by rolling the slope of the rolling guide.In order to increase the amount of gas generated in the coke oven,
By repeatedly placing waste tires on a rolling guide, as many waste tires as possible are loaded into the carbonization chamber.

Note that the waste tire that has entered the carbonization chamber through the rolling guide further rolls on the bottom surface of the carbonization chamber and comes to a stop when it hits the furnace lid on the side of the guide car or the already charged waste tire in the carbonization chamber. Also, the maximum number of waste tires that can be charged into the carbonization chamber using the above charging method varies depending on the size of the carbonization chamber and the size of the waste tires, but for example, the furnace width is 410 mm and the furnace length is 13,200 mm.
When discarded tires with an outer diameter of about 550 mm are charged into a carbonization chamber with a furnace height of 4300 mm, about 22 tires are charged.

By repeatedly rolling and charging donut-shaped waste tires from the coke extrusion port, when the charging of a large number of waste tires, for example 22 tires, is completed, the space between the bottom of the carbonization chamber and the extruder work floor is After removing the waste tire rolling guide installed in the coke outlet, a furnace cover is attached to the coke extrusion port, and the waste tire charging process is completed.

[Problems to be Solved by the Invention] During the waste tire charging process, either the coke extrusion port or the discharge port, which has a large opening area, is open, so it takes a long time to charge the waste tires. If this is required, there is a problem in that the furnace temperature decreases, heat loss increases, and the bricks for building the carbonization chamber are damaged due to cooling shrinkage.

The present invention charges waste tires into a carbonization chamber in a short time,
The present invention provides a method for charging waste tires into a coke oven that lowers the oven temperature, reduces heat loss, and suppresses brick damage.

[Measures to solve the problem] The gist of the invention is as follows.

When rolling and charging a plurality of waste tires into the carbonization chamber of a coke oven, it is necessary to prevent the waste tires from overturning on the slope that slopes downward toward the bottom of the coke oven carbonization chamber, and to prevent the waste tires from rolling in the direction of rolling. A plurality of waste tires are locked between a pair of guides that regulate the carbonization chamber in the longitudinal direction, and subsequent waste tires except the most advanced waste tire are locked, and the most recent waste tire is released. A method for charging a waste tire into a coke oven, the method comprising repeatedly carrying out the following steps after the disengaged waste tire starts rolling on a slope.

[Function] The present invention will be described in detail below based on an embodiment shown in the drawings.

In FIG. 1, 1 is a carbonization chamber of a coke oven, 2 is a coke extruder, and 3 is a waste tire charging device provided in the coke extruder 2.

The waste tire charging device 3 has a slope 5 that slopes downward toward the bottom surface 4 of the carbonization chamber 1 at the tip of the extruder 2, and prevents the waste tires 6 from rolling over on this slope S. A pair of guides 7.7° are provided to restrict the direction in the longitudinal direction of the carbonization chamber 1, and a waste tire locking rod 9, which can be moved in and out with a drive cylinder 8, is provided on the slope 5 between the guides 7.7° in the direction of the slope. A plurality of them are provided intermittently.

The angle of the slope 5 and the distance from the most advanced locking rod 9 to the tip of the slope 5 are as follows: The donut-shaped waste tire that has rolled on the slope 5 further rolls inside the carbonization chamber 1, and the furnace cover on the side of the guide car. The angle and distance are selected to reach this point.

The charging of waste tires 6 using the charging device 3 is carried out as follows.

(2) Move the guide car (not shown) and extruder 2 to the carbonization chamber 1 position where carbonization has been completed.

■ Furnace lid removing device (
(not shown), remove the furnace lid of the carbonization chamber 1.

(2) Position the guide wheel and the pusher (not shown) of the extruder 2 at the kiln mouth of the carbonization chamber 1.

(2) The busher (not shown) of the extruder 2 is moved forward to extrude the coke cake (not shown), and the bushar (not shown) is moved backward.

(2) Attach the furnace lid on the side of the guide car and position the guide 7.7° of the waste tire charging device 3 at the kiln opening lO on the side of the extruder 2 of the carbonization chamber 1.

As shown in FIG. 1, a plurality of waste tires 6 can be locked onto the slope 5 of the loading device 3 by locking rods 9 during the steps 1 to 2 above. To load the waste tires 6 onto the slope 5, for example, the most advanced locking rod 9 is projected, and a plurality of waste tires 6 are placed on the guide 7.
This can be done by loading from the rear end opening between 7 degrees and making the locking rod 9 protrude into the space 11 between the waste tires 6 and 6.

- Drive the cylinder 8 to release the most discarded tire 6 from being locked by the locking rod 9.

As a result, the most discarded tire 6 starts rolling on the slope 5.

When the waste tires 6 come into contact with each other while rolling on the slope 5, the rotating directions of the contact portions are opposite, temporarily interfering with smooth rolling. In order to prevent this and ensure smooth rolling, the most advanced waste tire among the group of 6 waste tires is stopped on the slope 5 after a short period of time after the waste tire 6 starts rolling. The process of releasing the locking by the locking rod 9 of No. 6 and rolling the discarded tire is repeated. As a result, the waste tires 6 roll on the slope 5 with a slight interval.

This is because a plurality of waste tires 6 are locked in advance on the slope 5 before such waste tires are loaded, and the waste tires 6 are rolled and loaded one after another at slight intervals. , the time required for charging a plurality of predetermined numbers of waste tires is shortened. Furthermore, according to the above-mentioned charging device 3, JP-A-62-
The steps of installing and removing the waste tire rolling guide in the charging method disclosed in the specification of No. 152040 are eliminated, and a decrease in furnace temperature of the carbonization chamber and heat dissipation loss in these steps can be effectively prevented.

The waste tires 6, which were first rolled and charged into the carbonization chamber 1 through the kiln 10, further roll on the bottom surface 4 of the carbonization chamber 1 and stop when they hit the furnace lid on the side of the guide car, leaving a small gap between them. The subsequent waste tire 6 that rolls along the same path hits the waste tire 6 that is stopped in the carbonization chamber 1 and comes to a stop.

■ When the charging of a plurality of predetermined number of waste tires 6 is completed,
A furnace lid is attached to the kiln port 10 on the side of the extruder 2, which serves as the waste tire charging port, and the waste tire charging process is completed.

(2) Using a coal loading car (not shown), charge an amount of coal commensurate with the amount of coke produced into the carbonization chamber 1 through a coal loading hole (not shown).

The procedure for loading waste tires 6 using the charging device 12 shown in FIG. 2 is as follows: That's right.

As in the previous embodiment, a plurality of waste tires 6 are previously locked on the slope 5 by locking rods 9 on the downstream side of the slope, as shown in FIG. 2 during the red hot coke extrusion preparation and extrusion process.

The guide 7 is aligned with the furnace port 10 of the carbonization chamber 1 where coke extrusion has been completed and the furnace cover on the side of the coke guide car is attached. Next, as shown in FIG. 3, the most discarded tire 6 is unlocked from the locking rod 9 on the upstream side of the slope. As a result, the most discarded tire 6 starts rolling on the slope 5. When the most discarded tire 6 rolls and passes the position of the locking rod 9 on the downstream side as shown in FIG. The discard tire group 6 is released from the locking rod 9 on the side.

As a result, the 6 groups of discarded tires slide down the slope 5,
As shown in FIG. 6, the slope 5 is
locked on top.

Hereafter, repeat the operations shown in Figure 3.4.5.6,
The charging of a plurality of predetermined numbers of waste tires 6 can be completed in a short time.

Note that if the number of waste tires to be loaded in advance into the charging device 3 or 12 is less than the desired number of tires, for example, multiple rows of the charging devices 3 or 12 are installed in parallel on the extruder 2, and these are By installing it so that it can be shifted in the direction of the furnace,
Remove the empty device 3 or 12 from the carbonization chamber kiln opening after discharging the waste tires, and then remove the device 3 or 12 loaded with the waste tires.
Alternatively, by positioning 12 at the kiln mouth and performing the above-mentioned charging operation, a desired number of rods can be charged into the carbonization chamber.

[Example] The first example allows loading 10 waste tires 6 onto the slope 5.
Two rows of charging devices 3 having the configuration shown in the figure are arranged side by side on the extruder 2 so as to be shiftable in the furnace direction, and a total of 200
When the discarded tire 6 was loaded into the carbonization chamber 1, the time required for loading was 75 seconds (5 seconds of which is the shift time of the device 3)
Met. On the other hand, using the charging method disclosed in Japanese Patent Application No. 152040 of 1982, in which waste tires are placed one by one on a rolling guide, it took a total of 20 waste tires 6 to be charged into the carbonization chamber 1. The time was 120 seconds, and the method of the present invention was able to reduce the required charging time to about half, and reduce the furnace temperature drop and heat loss during charging of waste tires to about half.

In addition, in the charging method disclosed in Japanese Patent Application No. 82-152040, it takes 10 seconds each to erect and remove the rolling guide, and the kiln mouth remains open during these steps, causing the furnace temperature to drop. However, in this embodiment, the process of installing and removing the rolling guide is eliminated, and a decrease in the furnace temperature and heat loss during this process can also be prevented.

[Effects of the Invention] As described above, when rolling and charging a plurality of waste tires into the carbonization chamber of a coke oven, it is necessary to prevent the waste tires from rolling over on the slope that slopes downward toward the bottom of the coke oven carbonization chamber. A plurality of waste tires are locked between a pair of guides that prevent the waste tires from rolling and restrict the rolling direction of the waste tires in the longitudinal direction of the carbonization chamber. Since the disengagement of the discarded tire at the tip is repeated after the disengaged discarded tire starts rolling on a slope, a predetermined number of discarded tires can be loaded into the carbonization chamber in a short period of time. As a result, the furnace temperature can be lowered, heat loss can be reduced, and brick damage can be suppressed.

[Brief explanation of the drawing]

FIGS. 1, 2, 3, 4, 5, and 6 are explanatory diagrams of the method of charging waste tires into a coke oven according to the present invention. 1... Carbonization chamber 2... Coke extruder 3.
... Waste tire loading device 4 ... Bottom of carbonization chamber 5 ... Slope 6 ... Waste tire 7 ... Guide 8 ... Drive cylinder 9 ... Waste tire locking rod 1O ... Extrusion Kiln opening 11 on machine side... Space 12... Waste tire charging device Fig. 2 1: Carbonization chamber 4: Carbonization chamber bottom 5 Ni slope 6: Waste tire 7: Guide 8: Drive cylinder 9: Waste tire section 7 Rondo 1: Carbonization chamber 4: Carbonization chamber bottom 1 Carbonization chamber 4: Carbonization chamber bottom 5 Varnish robe 6: Waste tire 7 - Guide 8 Drive cylinder 9 = Waste tire hoisting rod 12 Waste tire loading device

Claims (1)

[Claims] When rolling and charging a plurality of waste tires into the carbonization chamber of a coke oven, it is necessary to prevent the waste tires from overturning on the slope that slopes downward toward the bottom of the coke oven carbonization chamber, and to prevent the waste tires from rolling in the direction of rolling. A plurality of waste tires are locked between a pair of guides that regulate the carbonization chamber in the longitudinal direction, and subsequent waste tires except the most advanced waste tire are locked, and the most recent waste tire is released. A method for charging a waste tire into a coke oven, characterized in that the above steps are repeated after the disengaged waste tire starts rolling on a slope.