JPH0136896Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a charging device for charging red-hot coke into a coke cooling tower of a coke dry extinguishing system.

[Conventional technology]

Conventionally, a device for charging red hot coke into a cooling tower has a configuration in which a bucket gate installed at the lower end of a bucket for transporting coke is opened, and red hot coke is charged from the charging port of the cooling tower via a charging hopper. It's summery.

In this charging operation, after the red-hot coke is discharged from the bucket, the bucket is moved again to carry in coke, and then the hopper and furnace lid of the charging device are replaced, and the charging port is closed. Therefore, during this exchange time, the top and bottom of the charging hopper were left open, and dust remaining in the charging hopper during charging was scattered into the atmosphere, creating a poor working environment. In order to prevent this dust from scattering, it is necessary to wait a while after charging is completed to allow the dust to settle down to a certain extent, and then
It was necessary to move the bucket.

However, this time for dust to settle down lengthened the coke charging time cycle, which caused problems in terms of productivity.

In contrast to such conventional charging equipment,
As described in Japanese Patent No. 9838, there is a structure in which the upper part of the charging hopper is closed when the bucket is moved to prevent dust from scattering.

This corresponds to the charging port 2 of the cooling tower 20 in FIG.
The upper hopper 23 is provided with a dust generation prevention gate 25 that is biased in the closing direction by a weight 24, and the opening and closing of this dust generation prevention gate 25 is controlled by the lower end of the bucket 26. This is configured to be performed in conjunction with the bucket gate 27.

In this charging device, even when the bucket 26 moves, the dust generation prevention gate 25 prevents the hopper 26 from moving.
The upper end of 3 is not open to the atmosphere and can collect dust through a duct 28 that communicates with a suction device.

[Problem that the invention attempts to solve]

However, even in the above configuration, it is necessary to maintain the lower hopper 22 at a position directly above the cooling tower 20 until the dust in the hopper 23 settles down. Therefore, it is necessary to adopt a heat-resistant structure sufficient for the charging device against the heat dissipation of the red-hot coke, which has the disadvantage of complicating the structure and increasing equipment costs.

Furthermore, since the upper hopper 23 has a fixed structure, there is also the problem that maintenance and inspection of the cooling tower 20 becomes complicated.

The purpose of this invention is to make it possible to move the bucket without waiting for the dust generated during coke charging work to settle down, and to collect the dust without dispersing it into the atmosphere, thereby improving the work environment and productivity. There is a particular thing.

[Means and actions for solving problems]

The present invention combines a coke charging device with a bucket for conveying red-hot coke to a cooling tower and a hopper that is movable horizontally above the charging port of the cooling tower, and includes a dust prevention gate and a dust prevention gate in the hopper. A dust collection duct is provided that extends outward in the direction of movement of the hopper, and a double pipe structure is installed between the end of the dust collection duct and the dust processing equipment so that the dust collection duct can be moved horizontally. A connecting duct that communicates with the hopper is arranged so that even when the hopper is moved, the dust in the hopper can always be discharged from the dust collection and connecting duct to the dust treatment equipment.

〔Example〕

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

FIG. 1 is a cross-sectional view showing the main parts of the coke charging apparatus according to the present invention. In the figure, 1 is a hopper disposed above a cooling tower 20 so as to be movable by a drive device 2, and 3 is a hopper located above the hopper 1. This is a bucket that is moved back and forth between the supply source of red-hot coke by a crane, etc.

A seal skirt 5 is provided at the lower end of the hopper 1 to be submerged in a water seal trough 4 disposed at the upper end of the cooling tower 20, and a dust prevention gate 6 is disposed at the upper end so as to be openable and closable. For the opening/closing operation of this dust prevention gate 6, a sliding type can be adopted, for example, as shown in FIG.
The upper part of the hopper 1 can be opened and closed by extending and contracting the rod 9 of the cylinder 8 and sliding in the direction of the arrow through the linkage mechanism 10.

Reference numeral 11 denotes a dust collecting duct extending from the side of the hopper 1, and a connecting duct 1 that communicates with a vacuum cleaner (none of which is shown) having a built-in suction device, bag filter, etc.
2 is provided with a sealing device etc. to isolate it from the outside air, and is configured to be able to move forward and backward in the axial direction.

Furthermore, 13 is a bucket gate provided at the lower end of the bucket 3 so as to be openable and closable, and 14 is a bucket lid located at the upper end.

Further, the hopper 15 runs on the upper side of the cooling tower 20 following the movement of the hopper 1, and after charging, the hopper 1
This is a sealing lid that closes the charging port 21 of the cooling tower 20 when the cooling tower 20 is shifted to the retracted position as shown in FIG.

In the above configuration, after charging the red hot coke from the bucket 3 into the cooling tower 20, after closing both the bucket gate 13 and the dust prevention gate 6, the bucket 3 is separated from the hopper 1, and the bucket 3 is transferred to the coke oven. do.

During this time, the dust in the cooling tower 20 and the hopper 1 is sucked and discharged from the dust collecting duct 11 into the connecting duct 12, and is not released to the outside at all. Immediately after charging, the hopper 1 is moved to the left by the drive device 2 as shown in FIG. 2 in order to avoid the heat influence from the red-hot coke, and the seal lid 15 closes the charging port 21 instead of the hopper 1. to prevent dust from dissipating.

In response to this movement of the hopper 1, the dust collection duct 11 slides inside the connection duct 12 in a state where it is cut off from the outside air, so the dust in the hopper 1 always flows through the connection duct 1.
The dust is discharged in two directions, and dust can be prevented from dispersing to the outside in the same manner as described above.

Moreover, the resumption of the charging operation from the bucket 3 can be carried out by setting the hopper 1 in the state shown in FIG.

In addition, in the above-mentioned work, if the internal pressure in the upper part of the cooling tower 20 is always maintained at a negative pressure, dust dispersion when the hopper 1 is moved can be more reliably prevented.

As described above, after charging the red hot coke, the bucket 3 is moved and the hopper 1 is moved without waiting for the dust to settle down.
can be shifted to the retracted position. Therefore, it is possible to simplify the heat-resistant structure of the hopper 1 and shorten the time cycle for charging red hot coke.

[Effect of idea]

The coke charging device according to the present invention allows the hopper to be evacuated and the bucket to be transferred immediately after the completion of charging work, which simplifies the heat-resistant structure of the hopper and improves its durability, while also shortening the charging time cycle. This has the effect that it is possible to shorten the time and improve productivity.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing the main parts of the coke charging device according to the present invention, Fig. 2 is a sectional view showing the hopper and bucket separated and the hopper being moved to the retracted position, and Fig. 3. The figure is a perspective view showing an example of a drive system for a dust prevention gate, and FIG. 4 is a schematic sectional view of a conventional charging device. 1...Hopper, 2...Drive device, 3...Bucket, 4...Water seal trough, 5...Seal skirt, 6
... Dust prevention gate, 11 ... Dust collection duct, 1
2... Connection duct, 13... Bucket gate, 2
0...Cooling tower, 21...Charging port.

Claims (1)

[Scope of utility model registration request] It has a hopper that is movable horizontally above the charging port of the cooling tower, and each hopper is equipped with a dust prevention gate that can be opened and closed and a dust collection duct that extends horizontally outward. Furthermore, a coke charging device in a coke dry fire extinguishing system is constructed by arranging a connecting duct between the end of the dust collection duct and the dust treatment equipment, through which the dust collection duct communicates in a horizontally movable double pipe structure. .