JPH0195189A - Method of charging coke oven with waste tire - Google Patents

Abstract

PURPOSE:To attain charging of a waste tire while rendering harmless an air pollutant-contg. gas generated during charging, by conducting roll charging of a waste tire while sucking the gas in a carbonizing chamber through a coal charging aperture by means of a charging car dust collector for a coke oven. CONSTITUTION:A charging car 4 is positioned above an empty carbonizing chamber 1. A vertically moving chute 9 and a hood 10 are lowered and concurrently a connector 12 is connected to a fixed duct 13. Then, suctein of the gas in the carbonizing chamber 1 is started through a coal charging aperture 3. Along with these operations, a guide 23 of waste tire charging device 19 of a coke push-out apparatus 18 is positioned at an oven port 24 of the carbonizing chamber 1, and doughnut-form waste tires 22 are rolled on a slope 21 and a carbonizing chamber bottom face 20 and fed into the carbonizing chamber 1, followed by fitting of an oven lid to the oven port 24. Subsequently, a coal discharge device of the charging car 4 is actuated so as to supply coal through the coal charging aperture 3 into the carbonizing chamber 1. Thereafter, the chute 9 and the hood 10 are elevated, and concurrently a charging lid is inserted into the charging aperture 3 and the connector 12 is disconnected from the fixed duct 13, thereby discontinuing the suction through a charging car dust collection duct 11. The gas generated during the charging of the tires 22 and sucked through charging aperture 3 is fed to a dust collector 14, wherein any air pollutant is removed and exhausted through a chimney 16 into an outer atmosphere.

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. 62-152040 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 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. A method for operating a coke oven that can increase generated gas at low cost has been provided.

In order to charge the above waste tires into the carbonization chamber, the red-hot coke in the carbonization chamber is extruded using an extruder. A donut-shaped rolling guide for waste tires is installed between the working floor and the working floor, and the waste tires are placed on the rolling guide from the working floor, and rolled on the slope of the rolling guide into the carbonization chamber. Normally, in order to increase the gas produced by a coke oven, waste tires are repeatedly placed on a rolling guide, and as many waste tires as possible are charged into the carbonization chamber. .

Note that the waste tire that enters the carbonization chamber through the rolling guide further rolls on the bottom surface of the carbonization chamber and stops when it hits the furnace lid at the guide vehicle site 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, the furnace length is 13,200 mm, etc.
When a waste tire with an outer diameter of about 550 mm is charged into a carbonization chamber with a furnace height of 430 [1 mm], about 22 tires will be charged.

[Problems to be Solved by the Invention] The temperature inside the carbonization chamber is approximately 1000°C, and a large number of waste tires are charged by repeatedly rolling and charging doughnut-shaped waste tires from the coke extrusion port. In the process until the furnace lid is attached to the coke extrusion port, soot-containing gas is generated from the waste tires that are rolling in the coking chamber, and soot-containing gas is also generated from the discarded tires that have already stopped being charged into the coking chamber. However, there is a problem that the coke is radiated outside the furnace from the upper part of the coke extrusion port, causing air pollution.

The present invention provides a method for charging waste tires into a coke oven that can prevent the soot-containing gas generated during the process of charging the waste tires into the carbonization chamber from being released into the atmosphere from the waste tire charging port. be.

[Means for Solving the Problems] The method of charging waste tires into a coke oven of the present invention makes effective use of a charging vehicle dust collector installed in a coke oven to render the soot-containing gas harmless. It releases into the atmosphere, and its characteristic feature is that the gas in the coking chamber is sucked through the coke charging hole by the charging car dust collector of the coke oven, and the donut-shaped waste tires are fed into the coking chamber through the coke extrusion port or It is rolled and charged from the discharge port.

[Embodiments and Effects] The present invention will be described in detail below based on an embodiment example shown in FIG. 1.2.

In Figure 1.2, 1 is a carbonization chamber, 2 is a furnace lid on the coke guide car side, 3 is a coal charging hole located at the top of the furnace, 4 is a charging car that can freely run on the top of the furnace, and 5 is a coal hopper. It is. 6 is a fixed chute that guides the coal cut out by the coal cutting device from the potper 5 to the coal loading hole 3; 8 is a fixed hood that surrounds the outer periphery of the chute 6 with a gap; 9 and lO are the fixed chute 6, fixed It is a vertically movable chute and a vertically movable hood that moves up and down along the outer circumference of the hood 8. Reference numeral 11 denotes a charging car dust collection duct whose one end is connected to a fixed hood 8 supported by the charging car 4, and the other end of this duct 11 is extended toward the furnace top via a connector 12. It can be connected to a fixed duct 13. 14.15.16 is a dust collector placed in the outside duct 17 connected to the fixed duct 13, 8
This is a pull blower 1 chimney.

Normally, coal is charged into the carbonization chamber 1 in a smokeless manner using a charging vehicle dust collector. For details, see Part 2
As shown in the figure, the dust gas generated when the vertically movable chute 9 and the vertically movable hood 10 are lowered and coal is charged from the coal charging hole 3 through the chutes 6 and 9 is collected by the dust collector of the charging car. Suction with blower 15, chute 6.9 and hood 8
, lO gap, charging vehicle dust collection duct 11, connector 12
, a fixed duct 13, and a dust collector 14 via an outside duct 17.
The air pollutants are removed and released into the atmosphere from the chimney 16.

In FIG. 1, 18 is a coke extruder, and 19 is a waste tire charging device installed on the working floor of the extruder 18. forming a slope 21 that slopes downward toward the
This slope 21 is provided with a pair of guides 23 that prevent the waste tires 22 from overturning and restrict the rolling direction of the waste tires 22 in the furnace length direction. Note that the guide 23 is provided extending to a flat work floor behind the slope 21, so that the waste tires 22 can be stocked.

The procedure for charging waste tires using the charging device 19 and utilizing the charging vehicle dust collector is as follows.

■ The red-hot coke (not shown) in the carbonization chamber 1 is transferred to the extruder 1.
It is pushed out with a pusher (not shown) of No. 8 and passed through a guide car (not shown) to a fire extinguisher or a coke packet (not shown).
to be discharged.

■ Attach the furnace lid 2 on the side of the guide car.

■ Position the charging car 4 above the empty carbonization chamber 1, remove the charging M (not shown) installed in the charging hole 3 with a lid removing device, and lower the vertical chute 9 and hood 10. At the same time, the connector 12 is connected to the fixed duct 13, and the gas in the carbonization chamber 1 is started to be sucked through the carbonization hole 3.

In parallel with the operation up to the connector connection, the guide 23 of the waste tire charging device 19 of the coke extruder 18 is positioned at the kiln opening 24 of the carbonization chamber 1.

■ The waste tires 22 stocked on the work floor are placed on the slope 21 and rolled on the slope 21 while the charging car dust collector sucks the gas in the carbonization chamber 1 through the coal charging hole 3. .

The waste tire 22 is rolled on the slope 21 to the carbonization chamber 1.
It further rolls on the bottom surface 20 of the carbonization chamber, hits the furnace lid 2, and stops. Furthermore, by sequentially and intermittently placing the waste tires 22 stocked on the work floor on the slope 21, each waste tire 22 rolls on the slope 21, enters the carbonization chamber 1, and further reaches the bottom surface 20 of the carbonization chamber. It rolls and hits the waste tire 22 in the carbonization chamber 1 and stops. When there is no more rolling space for the waste tires 22 in the carbonization chamber 1, the supply of the waste tires 22 onto the slope 21 is stopped.

■ Attach the furnace lid to the waste tire loading port 24.

(2) The coal cutting device of the charging car 4 is operated to charge an amount of coal commensurate with the amount of coke produced into the carbonization chamber 1 through the charging hole 3.

(2) Raise the vertical chute 9 and hood 10 and insert the charging lid into the charging hole 3.

■ Separate the connector 12 from the fixed duct 13,
Suction from the charging car dust collection duct 11 is stopped.

In the process of charging waste tires mentioned above, as shown in FIG. Soot-containing gas is generated from 22 groups of discarded tires.
In the method of the present invention, the waste tires 22 are charged while the gas in the carbonization chamber 1 is sucked through the charging hole 3 by the charging vehicle dust collector, so the soot-containing gas is removed from the charging vehicle. The soot-containing gas is sucked through the inlet hole 3 and prevented from being released into the atmosphere from the waste tire loading port, and the soot-containing gas sucked through the charging hole 3 is made non-polluting by removing air pollutants in the dust collector 14 of the charging vehicle dust collector. It is released into the atmosphere from the chimney 16.

[Effects of the Invention] As described in detail above, according to the present invention, it is possible to prevent gas containing air pollutants generated during the charging process of donut-shaped waste tires into the carbonization chamber from being released into the atmosphere from the waste tire charging port. At the same time, it can be released into the atmosphere without any pollution.

[Brief explanation of the drawing]

FIG. 1.2 is an explanatory diagram of an embodiment of the method of the present invention. 1... Carbonization chamber 2... Furnace lid 3... Coal loading hole 4... Charging car 5... Coal hopper
6...Fixed chute 8...Fixed hood
9...Vertical movement chute 10...Vertical movement hood
11...Charging vehicle dust collection duct 12...Connector
13... Fixed duct 14... Dust collector
15... Induction blower - 16... Chimney
17... Ex-furnace duct 18... Coke extruder 19... Waste tire charging device 20... Bottom surface of carbonization chamber 21... Slope 22
...Waste tire 23...Guide 24...
Kiln mouth Fig. 2 - f'57A- 3: Charging lid 6: Identification chute 8: Fixed hood 9: Vertical movable chute 10: Vertical movable hood 11: Charging car dust collection duct

Claims (1)

[Claims] The feature is that a donut-shaped waste tire is rolled and charged into the coke oven from the coke extrusion port or discharge port while the gas in the coking chamber is sucked through the coke charging hole by the charging car dust collector of the coke oven. A method of loading waste tires into a coke oven.