JP2910744B2 - Superstructure of suction band opening of suction column of coke dry fire extinguishing system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an upper structure of a suction band opening of a suction column of a coke dry fire extinguishing system.

[0002]

2. Description of the Related Art FIG. 3 shows a vertical cross section of an upper part of a cooling chamber of a conventional coke dry extinguishing system. In FIG. 3, red hot coke is supplied from the top inlet 1 to the pre-chamber 2
Into the cooling chamber 3. In this cooling chamber 3,
The coke is cooled by a cooling gas introduced from below.

[0003] The cooled coke is discharged by a discharge device (not shown) provided at the bottom of the cooling chamber 3. The gas that has become high in temperature due to heat exchange with the red hot coke enters the annular flue 5 from the suction flue 4 and is sent to a dust remover (not shown) and a waste heat boiler (not shown) through a duct 6.
After the heat exchange, it is returned to the cooling chamber 3 again.

[0004] In the upper part of the cooling chamber 3, the pre-chamber 2 and the annular flue 5 surrounding the pre-chamber 2 are partitioned by a partition wall 7 with the lower part opened. This partition 7
Pillars 8 are provided at predetermined intervals in order to support from below. As shown in FIGS. 4 and 5 in an enlarged manner, the column portion 8 is constructed integrally with the partition wall 7 and the inner wall 9 by brick. FIG. 5 is a cross-sectional perspective view showing the configuration of the column 8.

[0005]

In the conventional coke dry extinguishing system, the upper portion of the opening of the suction band has a jack arch structure as shown in FIGS. 5 and 7 (b). In such a conventional jack arch, there is a danger that the bricks constituting the arch will fall off when the furnace is entirely aged.

Further, as shown in FIG. 6, for cooling (N ₂ )
After the gas passes between the coke masses and cools the coke masses, the gas becomes hot gas and moves from the suction flue 4 to the annular flue 5. When passing between the coke chunks, the gas flow velocity is large because the passage is narrower than the cross section of the suction flue 4, so that the gas accompanies coke breeze. Suction flue 4
In this case, the cross section of the gas passage is wider than that of the gas passage between the coke lumps, so that the gas flow velocity is small. Therefore, the coke breeze accumulates in the lower part of the suction flue as shown in FIG.

[0007] When the accumulation amount of the coke breeze increases, the gas passage in the suction flue 4 becomes narrower and the gas flow velocity increases. As a result, the coke breeze scatters from the annular flue 5 to the dust remover. Become like After the balance between the accumulation and the scattering of the coke breeze, the cross section of the suction flue 4 maintains a constant opening area, but the cross section of the suction flue has become smaller due to the accumulation of the coke breeze. The gas flow resistance increases by the minute. Since the circulating fan capacity is constant, the amount of circulating gas decreases due to an increase in gas flow resistance, and as a result, the cooling efficiency decreases.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an upper structure of a suction band opening which is stable and has a low risk of falling off and which can increase a flow rate of a cooling gas.

[0009]

The upper structure of the suction band opening of the suction column of the coke dry fire extinguishing equipment of the present invention has a cooling chamber at a lower part, a pre-chamber at an upper part, and a pre-chamber. Around the periphery of the partition wall, a partition wall constructed of a brick is circulated, and an annular flue partitioned from the pre-chamber by the partition wall is provided on an outer peripheral side of the partition wall, and a lower portion of the partition wall is cooled. in the upper structure of the suction band opening of the suction band column portion of the coke dry quenching equipment is supported by the suction band column portion which is brick product from the inner wall of the chamber, the upper part of the suction band opening, that having a circular core a superstructure was di catcher <br/> Kkuachi, the jack arches
Consists of a curved surface whose upper surface is flat and whose lower surface is convex upward
(Hereafter, this jack arch structure is referred to as “curved surface
J ". ) .

[0010] In the upper structure of the suction band opening of the suction column of the coke dry fire extinguishing equipment of the present invention, the area of the opening can be increased by forming a curved jack arch, so that the gas flow rate can be increased. It can increase the coke cooling effect.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1, FIG. 2 and FIG. 7 (a) show an embodiment of the present invention. FIG. 1 is a perspective view showing a state in which the partition wall is supported from below by a support member, and FIG.
The figure is the front view.

In the present embodiment, as shown in the drawing, the suction having the same circular center as the partition wall 7 in the horizontal direction, and having a curved surface shape in which the lower side of the conventional jack arch is convex upward. The upper structure of the band opening. With this configuration, the area of the opening 20 can be increased as is clear from the comparison between FIGS. 7A and 7B.
The gas flow rate can be increased, and the coke cooling effect increases. Also, cracking, falling out and falling off of the brick are eliminated.

In order to repair the suction column 8, the coke inside the coke dry fire extinguishing system is discharged in advance, and then a work deck 12 is installed below the partition wall 7, and the work deck 12 is placed on the work deck 12. The support member 13 is installed. The support member 13 includes a jack 15, a rod-shaped support member 16, and an abutment frame 1.
7. A floor plate 14 is laid on the work deck 12 of the coke dry fire extinguishing equipment, and a jack 15, a bar-shaped support member 16, and an abutment frame 17 are sequentially installed on the floor plate 14. Next, the upper surface of the abutment frame 17 is in contact with the lower surface of the partition wall 7, and the support member 13 is jacked up to a height that can support the load or the like of the partition wall 7. Then, in a state where the partition wall 7 is supported from above by the support members 13 installed at two or more places so as to sandwich the suction column portion 8 from below, the suction band portions 8 between the support members 13 are formed. Repairing (replacement of the brick) of the repaired portion (the portion of the suction band post portion 8 with the dots shown in FIG. 2 where the brick is cracked, dropped, etc.) is performed.

[0014]

According to the present invention, in the upper structure of the suction band opening of the suction column of the coke dry-type fire-extinguishing equipment, the area of the opening can be increased, so that the gas flow rate can be increased and the coke can be cooled. The effect increases. Also, cracking, falling out and falling off of the brick are eliminated.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which an upper portion of a suction band opening is supported by a support member from below.

FIG. 2 is a front view showing a state where the upper portion of the suction band opening is supported from below by a support member.

FIG. 3 is a longitudinal sectional view showing a conventional example.

FIG. 4 is a sectional view taken along line IV-IV in FIG. 3;

FIG. 5 is a vertical cross-sectional perspective view illustrating a configuration of a conventional suction flue.

FIG. 6 is a schematic cross-sectional view illustrating the state of coke breeze accumulation in a suction flue.

FIG. 7 is a schematic front view comparing the present invention with a conventional jack arch.

[Explanation of symbols]

 2 Pre-chamber 3 Cooling chamber 4 Suction flue 5 Annular flue 8 Pillar section 10 Brick 11 Iron 12 Work deck 13 Supporting member 14 Floor plate 15 Jack 16 Support material 17 Impression frame 20 Opening

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 62-170743 (JP, U) Japanese Utility Model Sho 59-160540 (JP, U) Japanese Patent Publication Sho 60-35406 (JP, B2) (58) Field (Int. Cl. ⁶ , DB name) C10B 39/02 WPIDS (STN)

Claims (1)

(57) [Claims] A cooling chamber is provided at a lower portion, a pre-chamber is provided at an upper portion, and a partition wall made of a brick is wrapped around the pre-chamber, and the partition wall separates the pre-chamber from the pre-chamber. A partitioned annular flue is provided on the outer peripheral side of the partition wall, and a lower portion of the partition wall is supported by a suction column portion on which bricks are stacked from an inner wall of the cooling chamber, and a suction column portion of the coke dry-type fire extinguishing equipment. in the upper structure of the suction band opening of the upper portion of the suction band opening, a superstructure that <br/> and distearate Yakkua blood having a circular core, said jack arches, upper surface flat
The upper structure of the suction band opening of the suction column of the coke dry fire extinguishing equipment, characterized in that the surface has a curved surface whose upper surface is convex upward .