JPH07268342A - Coke discharge device in coke dry quencher - Google Patents

Abstract

PURPOSE:To smoothly discharge coke cooled in a quenching furnace without causing troubles even if the coke falling or cooling gas flow in the cooling chamber becomes nonuniform, in a coke dry quencher. CONSTITUTION:This coke discharge device is made up of funnel hoppers 14 set up under a cooling chamber of a quenching furnace and plurally dividing the lower part of the cooling chamber horizontally, plural table feeders 17 provided above the respective hoppers 14 capable of reciprocating horizontal motion and to discharge contents independently from the respective hoppers 14, and a driving mechanism 18 for driving the respective table feeders 17. The coke quenched in the cooling chamber is discharged via the hoppers 14 out of the furnace under control.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coke discharge device for discharging coke cooled in a fire extinguishing furnace to the outside of the coke in a dry coke extinguishing system.

[0002]

2. Description of the Related Art As a coke fire extinguishing equipment, a coke dry fire extinguishing equipment (CDQ) which has no fear of environmental pollution and which can effectively utilize exhaust heat is known. FIG. 4 is a schematic vertical sectional view of a conventional coke dry fire extinguishing facility. Figure 4
As shown in FIG. 1, the fire extinguishing furnace 1 is composed of a preparatory chamber A in the upper part and a cooling chamber B in the lower part. In the vicinity of the boundary between the preliminary chamber A and the cooling chamber B, that is, in the upper inner wall of the cooling chamber B, a plurality of gas outlets 3 are provided at substantially equal intervals in the circumferential direction, and the plurality of gas outlets 3 are It communicates with an annular channel 4 formed in the furnace wall of the preliminary chamber A.

As shown in the vertical sectional view of the lower portion of the cooling chamber in FIG. 5, the lower portion of the cooling chamber B is formed in a funnel shape, and the distributor 2 is provided at the center of the lower portion and the beam 2'received from the furnace wall. It is supported and provided by. A coke discharge port 11 is provided at the lower end of the cooling chamber B, and the coke discharge port 11 has
A cutting device 12 consisting of a cutter gate and a double trap or rotary seal valve is attached.

The red hot coke charged into the auxiliary chamber A of the fire-extinguishing furnace 1 from the charging port 5 at the upper part of the fire extinguishing furnace 1 is lowered from the lower part of the cooling chamber B to the inside of the furnace while descending through the auxiliary chamber A in the cooling chamber B. Extinguished by the inert gas for cooling blown into the cooling chamber B
It is sequentially discharged out of the furnace from a cutting device 12 provided at the lower end of the.

On the other hand, the exhaust gas from extinguishing red hot coke is
From a plurality of gas outlets 3 provided on the inner wall of the upper part of the cooling chamber B at substantially equal intervals, the gas is exhausted to the flue 6 through the annular channel 4, and the primary dust remover 7 provided in the flue 6 discharges the exhaust gas. Dust is collected. The exhaust gas from which dust has been collected in the primary dust remover 7 is heat-exchanged in the boiler 8 and then secondary dust removed by the cyclone 9,
It is blown into the fire extinguishing furnace 1 again by the blower 10 and is used again.

[0006]

As described above, the coke extinguished in the fire extinguishing furnace 1 is sequentially discharged out of the cooling chamber B from the cutting device 12 provided at the lower end of the cooling chamber B. The lower part is formed like a funnel, and
Since the receiving beam 2'for supporting the distributor 2 from the furnace wall is provided across the lower part of the cooling chamber B, the descending of the coke in the cooling chamber B is uneven in the circumferential direction and the radial direction. become.

The non-uniformity of the coke descent in the cooling chamber B adversely affects the cooling of the coke, and causes high temperature coke that is insufficiently cooled. As a result, due to the high temperature coke, the iron skin of the cooling chamber B and the slicing device 12 are locally heated, causing problems such as damage. In order to prevent such troubles from occurring, FIG.
As shown in the sectional view taken along the line AA in FIG. 5, the distributor 2 has been made to have an elliptical planar shape, but this has not been sufficient.

Exhaust gas produced by extinguishing red hot coke is
From the plurality of gas outlets 3 provided at substantially equal intervals on the upper inner wall of the cooling chamber B, through the annular channel 4, the gas is discharged to the flue 6 to which the primary dust remover 7 and the boiler 8 are connected. Since the flue 6 is connected to one side of the fire extinguishing furnace 1, the flow of the cooling gas blown into the furnace from the lower part of the cooling chamber B becomes non-uniform, and uneven flow is unavoidable. . As a result, high-temperature coke with insufficient cooling is generated, and the above-mentioned trouble occurs.

Accordingly, an object of the present invention is to provide a trouble in a coke dry fire extinguishing facility even if the coke cooled in the fire extinguishing furnace is lowered in the cooling chamber or the flow of the cooling gas becomes uneven. An object of the present invention is to provide a coke discharging device in a coke dry fire extinguishing facility, which can smoothly discharge the coke.

[0010]

A coke discharging device in a coke dry fire extinguishing system according to the present invention comprises a lower part of a cooling chamber provided in a lower part of the cooling chamber of a fire extinguishing furnace composed of an upper spare chamber and a lower cooling chamber. Is divided horizontally into a plurality of funnel-shaped hoppers for discharging coke, and the contents independently of each of the plurality of funnel-shaped hoppers provided above the plurality of funnel-shaped hoppers. A plurality of horizontally reciprocating table feeders for discharging
A driving mechanism for reciprocating each of the plurality of table feeders, and selectively reciprocating each of the plurality of table feeders to remove coke extinguished in the cooling chamber. The feature is that each funnel-shaped hopper is controlled to be discharged out of the furnace.

[0011]

According to the present invention, a plurality of funnel-shaped hoppers are provided in the lower part of the cooling chamber, and coke can be discharged from any funnel-shaped hopper by selectively operating the table feeder. Therefore, the coke in the cooling chamber can be continuously lowered in a mass flow manner, and the coke can be controllably discharged for each of the plurality of hoppers according to the cooling state of the coke.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. 1 is a schematic vertical sectional view of a lower part of a fire extinguishing furnace showing an embodiment of the apparatus of the present invention, FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a sectional view taken along line BB of FIG. As shown in the drawing, the lower part of the cooling chamber B is composed of a plurality of funnel-shaped outlets 11 'which are horizontally divided into a plurality of funnel-shaped outlets 11', and a discharge box 13 is provided to each of the funnel-shaped outlets 11 '. A funnel-shaped hopper 14 having a cutting device 15 is provided at its lower end.

A receiving beam 16 is attached to the upper portion of each funnel-shaped hopper 14 in the radial direction thereof.
The table 16 is provided with a plurality of horizontally reciprocating table feeders 17 for opening and closing each of the funnel-shaped hoppers 14 independently. A drive mechanism 18 for reciprocating the table feeders 17, such as a fluid pressure cylinder, is attached to each of the table feeders 17. 19 is a table feeder
A roller attached to the bottom surface of 17.

At the lower part of the cooling chamber B, a funnel-shaped discharge port 11 'which is divided into a plurality of pieces in the horizontal direction is provided with an annular partition wall 20 which divides each of the discharge ports 11' into two inside and outside in the circumferential direction. It is provided. As shown in FIG. 3, a cover 21 is provided on both ends of each table feeder 17 for covering the gap between the adjacent table feeders 17 from above.

Since the apparatus of the present invention is constructed as described above, as shown by the broken line arrow in FIG.
The inert gas for cooling blown into the furnace from the lower part of the fire extinguishes the red hot coke charged in the fire extinguisher 1,
An annular channel 4 is formed on the inner wall of the upper part of the cooling chamber B through a plurality of gas discharge ports 3 provided at substantially equal intervals in the circumferential direction.
Is discharged to.

The coke cooled in the cooling chamber B is a funnel-shaped discharge port 11 'which is divided into a plurality of parts in the horizontal direction in the lower part of the cooling chamber B, as shown by solid arrows in FIGS. Leading to. Therefore, by driving the drive mechanism 18 and horizontally reciprocating any table feeder 17, the coke in the funnel-shaped discharge port 11 ′ is separated from the open lower end of the discharge port 11 ′ and the table feeder 17. From the bottom into the funnel-shaped hopper 14 provided below the discharge port 11 ', and
It is discharged to the outside of the furnace through a cutting device 15 provided at the lower end of the funnel-shaped hopper 14.

In this way, by selectively reciprocating the table feeder 17, any funnel-shaped hopper can be obtained.
From 14, the coke can be discharged in a controlled manner. Therefore, since the coke in the cooling chamber B can be continuously lowered in a mass flow manner, it contributes to energy saving and at the same time, the coke in the cooling chamber B is cut out uniformly and according to the cooling state. Moreover, by adjusting the reciprocating speed of the table feeder 17, it is possible to accelerate or decelerate the cutout amount.

[0018]

As described above, according to the present invention,
In the coke dry fire extinguishing equipment, the coke cooled in the fire extinguishing furnace can be smoothly discharged without trouble even if the coke descends in the cooling chamber or the flow of the cooling gas becomes uneven. Moreover, a useful effect is brought about.

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional view of a lower part of a fire extinguisher showing an embodiment of the apparatus of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a schematic vertical sectional view of coke dry fire extinguishing equipment.

FIG. 5 is a vertical cross-sectional view of the lower portion of the cooling chamber of the conventional coke dry fire extinguishing equipment.

6 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 fire extinguisher, 2 distributor, 2'beam, 3 gas outlet, 4 annular channel, 5 inlet, 6 flue, 7 dust remover, 8 boiler, 9 cyclone, 10 blower, 11 coke outlet, 11 'funnel Discharge port, 12 cutting device, 13 discharge box, 14 funnel hopper, 15 cutting device, 16 receiving beam, 17 table feeder, 18 drive mechanism, 19 rollers, 20 partition walls, 21 cover, A preliminary chamber, B cooling chamber .

Claims (1)

[Claims] 1. A funnel-shaped hopper for discharging coke, which is provided in a lower portion of the cooling chamber of a fire extinguishing furnace having an upper spare chamber and a lower cooling chamber, and horizontally divides the lower portion of the cooling chamber into a plurality of parts. And a plurality of horizontally reciprocable table feeders provided above the plurality of funnel-shaped hoppers for independently discharging the contents from the plurality of funnel-shaped hoppers. And a driving mechanism for reciprocating each of the plurality of table feeders, by selectively reciprocating each of the plurality of table feeders, the coke extinguished in the cooling chamber, A coke discharging device in a coke dry-type fire extinguishing facility, wherein each of the plurality of funnel-shaped hoppers is controlled to be discharged to the outside of the furnace.