JPS61136587A - Water seal device - Google Patents

Abstract

PURPOSE:To shut off the atmosphere without depositing foreign matter and without detriment to water seal action by means of a water seal device so constituted that foreign matter such as coal dust is collected in a collection box and discharged by a circulating stream created in a tank. CONSTITUTION:A water seal device shutting a large amt. of dust-contg. gas in a rotary means from the atmosphere by equipping one of relatively movable members of the rotary means with a tank 6, equipping the other one with a water seal board 9 and inserting the board into said tank. In said device, the inside of the tank 6 is equipped with a pressurized water tube 10 having a plurality of nozzles 11 to create a circulating stream in the tank by a spout from the nozzle. A dust collection box is formed downwardly swelling in a portion of the tank bottom. Foreign matter sinking in said tank and circulated by said circulating stream is allowed to settle in the dust collection box 14 and discharged through a connecting drainpipe 16.

Description

Detailed Description of the Invention Industrial Field of Application The present invention relates to a water seal device, for example, a water seal device for recovering sensible heat from red hot coke produced in an S-coke oven using an inert gas as a medium. In a dry fire extinguishing system (CDQ), there is a complete KM between the inside of the equipment and the outside air.
This invention relates to a water seal device for cutting.

<Prior Art> Conventionally, a circular grade cooler has been known as one of the cooling devices for sintered ore, for example.

The circular grade method is a method in which agglomerates (e.g. coke, pellets) are loaded onto multiple grates, some of which have rings installed on circular rails, and are heated while being circulated. Or it is a device for cooling. In addition, in the cooler, cold air is supplied from the lower part 1, and the red-hot or high-temperature sintered ore charged from the upper part is cooled by countercurrent flow, and the hot air or hot air that has been exchanged with heat is recovered or exhausted. Was.

<Release E! Problem to be solved by A> The above sintering cooler has a structure in which the sintered material is cooled by room-temperature air, and if air is used to cool the red-hot coke, oxidative combustion will occur. Since cooling is not possible, the above device cannot be applied as is. Therefore, when inert gas is used instead of air to cool red-hot Fuchs, it is necessary to completely seal between the inside of the cooling extinguishing system and the outside air, and for this reason, a water seal system was used. . However, in conventional water seal devices, floating coal dust settles and accumulates in the water tank, and in some cases, there is a risk that the water sealing effect will be lost and the role of the seal will be lost. SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a water seal device capable of collecting and discharging foreign matter such as coal dust settled in a water tank.

<tii Means for solving the melting point> The configuration of the water seal device of the present invention that achieves the above object includes attaching a water tank to one of the relatively movable mu fx members of the rotating device, and attaching a water tank to the other. In a water seal device that is equipped with a water seal plate and immerses the water seal plate into the water tank to shut off a large amount of dust-containing gas in the rotating device from the outside air, a plurality of nozzles are installed in the water tank. A pressure water pipe equipped with the nozzle is arranged to generate a circulating flow in the water tank by the jet stream of the nozzle, and a dust collecting hole is formed by bulging downward at a part of the bottom of the water tank, and the dust collecting hole is submerged in the water tank. The dust collector causes the foreign matter swirling by the circulating flow to settle in the dust collector, while a drain pipe is connected to the dust collection box to discharge the foreign matter.

When water is ejected from the nozzle of a pressure water pipe placed inside the tank to generate a circulating flow within the tank, foreign objects submerged in the tank will swirl and swell downward into a part of the bottom of the tank. When the dust is discharged, it settles intensively in the dust collection box that is formed. The foreign matter that has settled in this way is discharged from the drain pipe connected to the dust collection box, and there is no accumulation of particles.

<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

An embodiment of the present invention is shown in FIGS. 1 to 3.

The embodiment shown in the figure is applied to a circular grate type fire extinguishing system according to the present invention. That is, a wind box 3 is fixed on the ground, and a circular grate main body 2 is provided on the wind box 3 so as to be movable in an annular shape, and a hood l is mounted on the wind box 3 relative to the wind box 3. It is set up so that you don't move around or make any noise. On the outer periphery of the wind box 3 is a rail 1 concentric with this.
Wheels 18 are attached to the main body 2, and the wheels 18 are placed on the rails 17 and folded down.

A pallet board 4 is installed inside the circular grate main body 2, and red-hot coke 5 is loaded on this pallet board 4. There is a water seal s between the main body 2, the main body 1 and the wind box 3 which rotate relative to each other in this way.
, s' has a structure that completely isolates it from the outside air.

That is, as shown in FIGS. 1 and 2, in the water seal device SIC, an annular water tank 6 is disposed on the upper outer periphery of the circular grate main body 2, and an inclined plate 7 is provided at the bottom of the water tank 6. is attached, making the bottom width narrower. On the other hand, an annular water seal plate 9 is provided on the lower outer periphery of the 7-piece 1.
is attached, and this water seal plate 9 is inserted into water 8 stored in the water tank 6. In this embodiment, the water tank 6 is the main body 2.
The water seal plate 9 is fixed at 7 points 1 and is immovable, but when the water tank 6 is fixed at 7 points 1,
The water seal plate 9ft may be fixed to the main body 2 and made movable.

A pressure water pipe IO is arranged at the bottom of the water tank 6, and this pressure water pipe 10 is fixed to the water sealing plate 9 so as not to be moved. #! between the moving water tank 6 and the pressure water pipe 6! It is K-shaped to reduce friction. As shown in FIG. 2, a plurality of nozzles 11 are attached to the pressure water pipe 6 at a constant angle of elevation with respect to the circumferential direction, and the water jetted from the nozzles 11 generates a circulating flow in the water tank 6. That will happen. As shown in FIG. 2, a dust collection box 14 is formed on the bottom of the water tank 6 in front of the nozzle 11 in the jetting direction, bulging downward, and the coal dust 20 swirled by the circulating flow is collected in this dust collection box. This results in a total of 14. A drain pipe 16 is connected to this dust collection box 14 via a solenoid valve 15.
When the solenoid valve 15 is opened once the solenoid valve 15 is connected, the accumulated coal dust 20 will be discharged from the drain pipe 16.

Further, in the figure, 13 is a hot water pipe attached to the water 11fM6, and the overflowed water is discharged to the water tank 21 of the water seal device S' below.

Further, in the figure, 22 is a water supply pipe for circulating water or industrial water that supplies water to the water tank 6. Note that the water seal device S' has the same structure as the water seal device S described above, so a detailed explanation thereof will be omitted.

The operation of the fire extinguishing system having the above configuration will be explained. First, the main body 2 is held between a wind box 3 fixed on the ground and rotated in an annular manner while being guided by wheels 18 running on rails 17. Between the main body 2, the hood 1, and the wind box 3, the air in the fire extinguishing device is replaced with inert gas by the water cooling devices s and s'. Next, red hot coke 5 is placed on the pallet board 4 installed in the main body 2.
is continuously supplied to stack red hot coke 5. Main body 2
While the coke rotates in an annular manner and goes around once, the red hot coke 5 is extinguished and cooled by the inert gas from the wind box 3, and the cooled coke is discharged to the outside at a predetermined position. In this case, floating coal dust 19 is generated in the chamber of the hood 1 when the red-hot coke 5 is charged onto the pallet plate 4 and when the coke is discharged after cooling, and this is generated in the water seal devices s and s'. Charcoal submerged in water tank 6! It becomes 120. In the water tank 6, a circulating flow is generated by the water ejected from the nozzle 11 of the pressure water pipe 10], and the coal dust 20 swirls and is concentrated in the collecting mesh 14 at the bottom of the water tank 6. This will result in sedimentation. The coal M120 accumulated in the dust collection box 14 is detected at a location connected to a drainage tank (not shown) during the annular movement, and in response to this, the start and stop switch of the solenoid valve 15 is activated to fully open or fully open the solenoid valve 15. The closing operation is performed, and the wastewater containing 620 tons of accumulated charcoal is drained through the drain pipe 16 into a drain tank (not shown). Also, normally, water 8 is supplied to the water tank 6 through a water supply pipe 22 so that a constant level is maintained.

Excess water overflows and is drained through the water tank 22 of the water seal device below the overflow pipe.

<Effects of the Invention> As described above in detail based on the embodiments, according to the water seal device of the present invention, foreign matter such as coal dust is collected in the collection cox by the circulation flow generated in the water tank. Since the water is discharged with water, no foreign matter is deposited and the water sealing effect is not impaired. In addition, although this embodiment applied the present invention to a circular grate type dry extinguishing cooling system for red-hot coke, the present invention is not limited to this, and similarly applies to a large amount of metal gas in a rotating device. The present invention can be widely applied to all water seal devices that interface with outside air.

[Brief explanation of the drawing]

1 to 3 relate to one embodiment of the present invention, FIG. 1 is a cross-sectional view showing details of the water seal device, FIG. 2 is a side sectional view showing details of the water seal device, and FIG. The figure is a cross-sectional view of the main parts of a circular grate type fire extinguishing cooling system. In the drawing, l is 7.9. 2 is the Nacula Grate body, 3 is the wind box, 4 is the pallet board, and 5 is the red hot coke. 6 is a water tank, 7 is an inclined plate, 8 is water, 9 is a water seal plate, 10 is a water pressure pipe, 11 is a nozzle, 12 is a roll, 13 is a water overflow plate, 14 is a dust collection box, 15 is a solenoid valve, 16 is a drain pipe. 17 is a rail, 18 is a wheel, 19 is floating coal dust, 20 is coal dust, 21 is a water tank, 22 is a water supply pipe, and s and s' are water seal devices.

Claims (1)

[Claims] By attaching a water tank to one of the relatively movable members of the rotating device and attaching a water seal plate to the other, and inserting the water seal plate into the water tank, a large amount of water in the rotating device can be removed. In a water seal device that shuts off dust-containing gas and outside air, a pressure water pipe equipped with a plurality of nozzles is disposed in the water tank, a jet stream from the nozzles generates a circulating flow in the water tank, and a water seal is provided at the bottom of the water tank. A dust collection box is formed in a part of the water tank so as to bulge downward, and foreign matter submerged in the water tank and swirled by the circulation flow is allowed to settle in the dust collection box, while a drain pipe is connected to the dust collection box. A water seal device that is characterized by discharging foreign matter.