JP2581609Y2 - Coke cutting equipment in coke dry fire extinguishing equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an improvement of a coke cutting device for discharging cooled coke from a gas circulation system in a coke dry-fire extinguishing system, and to improve the sealing property of a door for opening and closing an opening and to prolong the service life. It is designed to work.

[0002]

2. Description of the Related Art Coke dry fire extinguishing equipment used in the production of coke, which is indispensable to the iron making process,
The red hot coke introduced into the cooling tower is quenched and cooled by circulating an inert gas mainly composed of nitrogen or the like.

[0003] The cooled coke is cut out by opening doors at upper and lower openings of the coke cutting device.

In the coke cutting device of such a coke dry-type fire extinguishing system, as shown in FIG. 3, for example, a tip end of a gate casing 2 in which a shoot liner 1 is mounted is formed with a rectangular opening 3 for cutting. A rectangular door 4 is provided at the tip of the opening 3 and can be opened and closed via a link 6 supported by pins 5 on the gate casing 2. And the gate casing 2 of this door 4
A gate liner 7 is attached to the inside surface of the coke C, and the coke C is supported by the gate liner 7.

[0005] In addition, on the outer surface around the rectangular opening 3,
Since a seal portion is provided and the seal pressure is relatively low at about 400 mmAq, the metal seal 8 is attached, and the door 4
And metal contact with the surrounding metal seal 9.

[0006]

FIG. 4 (a) shows a coke cutting device in such a coke dry fire extinguishing system.
As shown in the figure, even when the door 4 is fully closed, there is a gap between the shoot liner 1 inside the gate casing 2 and the gate liner 7 inside the door 4, so that the metal below the gate liner 7 The coke C powder accumulates above the contact portions of the seals 8 and 9.

On the other hand, the opening 3 at the tip of the chute 2 is sealed by metal seals 8 and 9 because the sealing pressure is relatively low. However, the metal seals 8 and 9 cannot completely seal. And the circulating gas leaks little by little.

For this reason, the coke C of the powder also leaks together with the leak of the circulating gas, so that the metal seal 8 is continuously worn or the coke C of the powder is caught when the door 4 is closed. There's a problem.

Further, the leakage of the circulating gas itself has not been a problem in the past, but it is necessary to minimize leakage because it contains flammable components, toxic hydrogen and carbon monoxide.

When the door 4 is opened, at the very early stage when the door 4 is slightly opened, as shown in FIG. There is a problem that the seal 8 is worn.

FIG. 4 shows that the door 4 is gradually opened.
In the states (c) and (d), the coke C falls along the shoot liner 1 of the gate casing 2, and the falling coke C collides with the metal seal 9 on the lower side of the door 4, and the door 4 There is a problem that the metal seal 9 is worn.

The present invention has been made in view of the problems of the prior art, and aims to provide a coke cutting device in a coke dry-type fire extinguishing system capable of improving the sealability and extending the life of the seal. It is.

[0013]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a coke cutting device in a coke dry fire extinguishing system according to the present invention is provided with an opening at a door for opening and closing a batch type coke cutting device of a coke dry fire extinguishing system. A seal member for sealing between the inside gate and the door is provided, an inner gate which is closed before the door and opened later is provided, and a seal member is attached between the inner gate and the opening. It is characterized by the following.

[0014]

According to the coke cutting device in the coke dry-type fire extinguishing system, an inner gate which is closed before the door and opened later is attached to a door for opening and closing the opening of the coke cutting device. Sealing members are provided between the door and the opening and between the inner gate and the opening, respectively.The opening and closing of the opening with the inner gate with a time lag from the door, and the provision of double seals, The problem of coke powder getting stuck in the seal portion is eliminated, and a rubber seal can be used for the seal portion of the door to improve the sealability and extend the service life.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an enlarged cross-sectional view of an embodiment of the coke cutting device in the coke dry fire extinguishing equipment of the present invention.

In the coke cutting device 10 of the coke dry fire extinguishing system, the tip of a gate casing 12 having a shoot liner 11 mounted inside has a rectangular opening 13 for cutting. A rectangular door 14 is disposed and connected to the gate casing 12 via a pin 16 and a link 16 supported by the pin 15 and can be opened and closed with the pin 15 as a center of rotation. A hydraulic cylinder (not shown) is connected to a pin 17 connecting the door 14 and the link 16 via a link mechanism such as a rod 18, and the opening / closing force from the hydraulic cylinder is transmitted to the door 14. It has become.

Inside the door 14, an inside gate 19 is arranged, and the upper end is connected to the door 14 via a pin 20, and the lower end is closed before the door and opened later. It is connected to the door 14 via the opening / closing differential mechanism 21.

In the opening / closing differential mechanism 21, a cylindrical outer cylinder 22 is fixed to the door 14, and a piston 23 is slidably mounted in the outer cylinder 22, and the piston 23 and the bottom of the outer cylinder 22 are connected to each other. A spring 24 for urging the piston 23 to push it forward is mounted between the piston 23 and the lower end of the inner gate 19 via a pin 25.

Therefore, when the door 14 is closed, since the inner gate 19 is pushed forward by the spring 24, the inner gate 19 is first closed,
When the door 14 is further closed, the door 1 is
4 is closed.

When the door 14 is opened, only the door 14 is opened until the spring 24 is fully extended, and when the door 14 is further opened, the inner gate 19 is opened for the first time. The gate 19 is opened and closed with a time difference.

The seal between the door 14 and the inside gate 19 and the opening 13 is provided with metal seals 26 and 27 which also function as stoppers at the contact portions between the inside gate 19 and the opening 13.
7 is provided with a rubber seal 2 at the contact portion between the door 14 and the opening 13 outside.
8, 29 are provided respectively.

In the coke cutting device 10 in the coke dry-type fire extinguishing system thus configured, the door 14 and the inner gate 19 are opened and closed and sealed as follows.

(1) When the opening 13 is closed (FIG. 2)
(See (d)-(c)-(b)-(a)) The force from the hydraulic cylinder (not shown) is applied to the pin 1 of the door 14 via the link 18.
7, the inner gate 19 is closed in a state where the inner gate 19 is pushed forward by the spring 24 with respect to the door 14,
First, the metal seal 26 of the inner gate 19 is closed in contact with the metal seal 27 of the opening 13 (see FIG. 2B).

When a force is further applied to close the door 14 from this state, the inner gate 19 is
Since the doors 14 and 14 are fixed with the stoppers 6 and 27 as stoppers, the door 14 is closed against the spring 24, and the rubber seals 28 and 29 come into contact with each other so that the opening 13 is completely closed (FIG. 2 ( a)).

When the inner gate 19 is closed first and then the door 14 is closed, the metal seal 26 of the inner gate 19 and the metal seal 27 of the opening 13 which are closed first come into contact with each other. Seal 26,
Falling of coke breeze C below 27 is prevented.

As a result, the coke breeze C is not caught in the seal portions disposed outside the metal seals 26 and 27, and the seals can be sealed using the rubber seals 28 and 29.

(2) When opening the opening 13 (FIG. 2A)
-(B)-(c)-(d)) When a force from a hydraulic cylinder (not shown) is transmitted to the pin 17 of the door 14 via the link 18, the rubber seals 28 and 29 are turned on until the spring 24 is fully extended. After the separation, only the door 14 is opened (see FIG. 2B). When the door 14 is further opened, the inner gate 19 is opened for the first time, and after the metal seals 26 and 27 are separated, the inner gate 19 is opened. Door 14 and inside gate 1
9 are opened with a time difference (see FIGS. 2C and 2D).

When the door 14 is opened first and then the gate 19 is opened, the rubber seals 28 and 29 of the door 14 which is opened earlier are located at a position away from the opening 13 and the inner gate 19 is opened. Even if coke breeze C is blown out as the circulating gas is blown out at the very early stage of opening, as shown in FIGS. 2 (c) and 2 (d), direct collision with the rubber seal 28 may occur. This is prevented together with the guard by the nineteen metal seals 26.

As a result, the coke breeze C does not collide with the seal portions disposed outside the metal seals 26 and 27, and can be sealed using the rubber seals 28 and 29, and abrasion is prevented. .

As described above, the opening 13 is opened and closed by the inner gate 19 for stopping the movement of the coke C and the door 14 that serves only the gas seal, but a pair of link mechanisms connected to the door 14 for opening and closing are provided. The operation can be performed only by the hydraulic cylinder, and the inner gate 19 and the door 14 can be opened and closed by the same operation as the conventional door 4 described with reference to FIG.

The opening 1 is formed between the inner gate 19 and the door 14.
3, the door 14 can be opened with the coke C supported.

Note that the present invention is not limited to the above embodiment, and each component may be changed without changing the gist of the present invention.

[0033]

As described above in detail with the embodiment, according to the coke cutting device of the coke dry extinguishing system of the present invention, the door for opening and closing the opening of the coke cutting device is preceded by this door. At the same time, the inner gate that is closed and opened with a delay is attached, and seal members are provided between these doors and the opening and between the inner gate and the opening. The opening and closing can be opened and closed, and by contacting the inner gate seal first, the problem of coke powder getting stuck in the door seal is eliminated, and a rubber seal can be used for the door seal. Sealability can be improved.

Further, when the opening is opened, the seal of the door can be retracted backward, so that the abrasion of the seal due to the collision of the coke powder can be prevented, thereby extending the life of the seal. .

Further, since the seal is provided in double,
The sealing performance is improved, and leakage of the circulating gas is prevented, so that safety can be further improved.

Also, despite using a double door,
The number of drive sources can be reduced to one, and the structure can be simplified.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view of one embodiment of a coke cutting device in a coke dry-type fire extinguishing facility of the present invention.

FIG. 2 is an operation explanatory view of one embodiment of a coke cutting device in the coke dry-type fire extinguishing equipment of the present invention.

FIG. 3 is an enlarged sectional view of a coke cutting device in a conventional coke dry fire extinguishing facility.

FIG. 4 is a diagram illustrating the operation of a coke cutting device in a conventional coke dry fire extinguishing facility.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 Coke cutting device in coke dry fire extinguishing equipment 11 Shoot liner 12 Chute casing 13 Opening 14 Door 15 Pin 16 Link 17 Pin 18 Rod 19 Inner gate 20 Pin 21 Opening / closing differential mechanism 22 Outer cylinder 23 Piston 24 Spring 25 Pin 26, 27 Metal seal (seal member) 28,29 Rubber seal (seal member) C coke or coke breeze

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuji Teraoka 2-1 Iwakuni-cho, Iwakuni-shi, Yamaguchi Pref. Iwakuni Works (56) References Full-scale sho 59-109750 (JP, U) Full-scale sho 59 −64946 (JP, U) Japanese Utility Model 58-48748 (JP, U) Japanese Utility Model Application Hei 3-85446 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) C10B 39/02 C10B 41/02

Claims (1)

(57) [Scope of request for utility model registration] 1. A door for opening and closing an opening of a batch type coke cutting device of a coke dry-type fire extinguishing facility, a sealing member for sealing between the opening and the opening is installed. A coke cutting device in a coke dry-type fire extinguishing facility, wherein an inner gate that is opened by being opened is provided, and a seal member is attached between the inner gate and the opening.