KR960008757Y1 - Recombustion apparatus of unfired gas - Google Patents

Abstract

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Description

Dispersion Tower Non-Combustion Complex Gas Reburner

1 is an overall configuration of a non-combustible ignition gas reburn apparatus according to the present invention.

2 is a detailed view of the air supply unit provided in the reburn apparatus of the present invention.

3 is a plan view of the air injection unit provided in the reburn apparatus of the present invention.

4 is a side view of the air injection part shown in FIG.

* Explanation of symbols for main parts of the drawings

12: air tank 20: air supply shutoff valve

24a, 24b, 24c, 24d: connecting rod 25: defense tower switchgear

30a, 30b, 30c: air injection port 31a, 31b, 31c: connection piping

40: ignition device 60: defense tower

The present invention relates to a device for reburning the non-combustible ignition gas discharged from the tower, and more particularly, the tower non-combusted ignition gas that can completely burn the non-combusted ignition gas by supplying combustion air to the exit of the tower It relates to a reburn apparatus.

In order to produce coke at the coke plant currently used in steel mills, coke coal, a kind of coal, is put in a high temperature coke oven and sealed to produce coke after a certain time. Various volatile matters are contained in the coal briquettes, and gas is generated by heat.

The gas thus generated is referred to as COKE OVEN GAS, or COG, but hereinafter referred to as COG.

In the COG, various components and foreign substances are included, and the COG is reused as a combustion gas through a purification process that effectively separates each component in a COG purification facility. When COG is generated in a COKE oven through such a purification process, as shown in FIG. 1, the gas is first collected in the gas collecting device 50 and then the gas is purified through piping. In the case of failure and power failure of the refinery and the transfer equipment, the gas transfer is impossible, so that the opening and closing device 25 of a kind of emergency chimney called the tower 60 is installed on the side of the gas collecting device 50. By operating it to dissipate the COG in the gas collecting device (50) to the outside, but if it is just emitted to the outside caused pollution problems such as air pollution, the electric ignition device (40) that is operated regardless of the power failure on the top of the tower 60 By installing the opening and closing device 25 of the tower, the ignition is automatically ignited to burn the COG to be released to the outside to prevent the occurrence of pollution.

However, as the electric ignition device, when a large amount of positive pressure gas in the gas collecting device 50 is discharged to the outside at the same time from the distribution tower 60, the gas is combusted and burned, but a large amount of non-combustion The gas is released.

In other words, combustion is normally performed by supplying air or oxygen smoothly to the outside and the bottom of the ignited gas. And the inside of the ignited gas intermediate part is not supplied smoothly and is burned in an incomplete state, so that a large amount of soot is generated, which causes another air pollution.

The present invention was devised to solve the conventional problems as described above, the defense tower that can prevent the air pollution by minimizing the generation of soot by completely burning the non-combusted gas inside the ignition gas discharged through the tower. The purpose is to provide an unburned ignition gas reburn apparatus.

In order to achieve the above object, the present invention is provided with a pipe for supplying air from the air tank, and the pipe is provided with an air supply shutoff valve of a pressure control valve, and an air supply shutoff valve spindle and a diverter tower switchgear using a connecting rod. And connecting a plurality of injection pipe connecting pipes smaller than the diameter of the air supply pipe so that the same pressure as that of the air supply pipe connected to the air supply shutoff valve can be maintained. Air injection holes are respectively mounted, the direction of the air injection port by the angle (θ) while deflecting the funnel-shaped radially reduced in diameter to the top of the tower, the air can be ejected to the upper ignition gas during the air injection through the air injection port The air injection holes are formed at different heights, each forming a stage. The top of the fire-ignition combustion gas reburn unit to maryeonham.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

The non-combustible ignition gas recombustion apparatus according to the present invention has an air tank (12) in which factory air is supplied and stored at a constant pressure, as shown in FIG. 1, and the air tank (12) has a pipe A pressure regulating valve 22 is mounted through a 21, and an air supply shutoff valve 20 that is openable and closed at 90 ° rotation is mounted at the rear end of the pressure regulating valve 22. In addition, a plurality of connecting rods 24a, 24b, 24c and 24d are successively mounted on the spindle 23 of the air supply shutoff valve 20, and the connecting rod 24d is disposed inside the distribution tower 60. It is connected to the spindle 26 is connected to the switchgear (25).

In addition, the distance between the connecting rods 24a, 24b, 24c, and 24d in contact with the spindle 23 of the air supply shutoff valve 20 and the diverter tower spindle 26 is shown. The turnbuckle 27 is connected.

The connecting link structure of the spindles 23, 26 and the connecting tables 24a, 24b, 24c, and 24d has a divergent tower opening and closing device when the air supply shutoff valve 20 is opened 100%. (25) is opened 100%, the turnbuckle (27) is adjusted and connected so that the tower defense device (25) is closed when the air supply shutoff valve (20) is closed 100%.

And in order to repair the air supply shutoff valve 20 and to check the artificial air supply state, the middle of the pipe 21 of the hydraulic adjustment valve (VALVE) 22 and the air supply shutoff valve 20 and the air supply shutoff valve ( 20, the T-type bypass pipe 21a is provided on the rear side, and a bypass valve 28 is provided in the middle of the bypass pipe 21a.

And, the air supply pipe 21 is connected to the ring-shaped conversion pipe 21b wound around the defense tower 60 in the circumferential direction, the conversion pipe (21b) connected to the upright at a predetermined interval toward the top (31a) (31b) and (31c) are extended, and air injection holes (30a) (30b) (30c) are mounted at upper ends of the connection pipe (31a) (31b) (31c), respectively.

Each of the air injection ports 30a, 30b and 30c is installed above the ignition device 40 on the top of the tower 60 so that the air is injected in a state where the gas is ignited. So that the ignition gas is not turned off by the air injection pressure, and the directions of the air injection holes 30a, 30b, and 30c are eccentric from each other by the angle θ, respectively, from the center to the top of the radiation tower 60. By connecting in a radial shape of the funnel shape is reduced in diameter, when the air (AIR) is injected, the air (AIR) forms a vortex to approach the middle of the ignition gas to be ejected to the top.

In addition, the positions of the air injection holes 30a, 30b, 30c are installed stepwise in a state where the air injection holes are separately separated, and the first air injection hole 30a is provided on the top of the dissipation tower 60, and the dissipation tower 60 is provided. The second air injection port 30b is provided on the upper part of the first air injection port 30a by the length corresponding to the inner diameter, and the third air injection port 30c has the third air injection port 30c in the same manner as the second air injection port 30b is installed. It is equipped with.

Reference numeral P is a pin for rotatably fixing the connecting rod.

The present invention configured as described above, the air is transmitted from the air tank 12 to the pressure regulating valve 22 through the air supply pipe 21 is adjusted to a constant pressure, the air to the air supply shutoff valve 20 It is transmitted, the operation of the air supply shut-off valve 20 is the central axis of the distribution tower on-off valve spindle (SPINDLE) 26 and the air supply shut-off valve spindle (SPINDLE) (23) (24a, 24b, 24c) Since it is connected using the 24d, the tower opening and closing device 25 is opened, and when the gas discharged through the tower 60 is ignited, the air supply shutoff valve of the non-combustible gas recombustion device (VALVE) At the same time opening operation to the (20) while the air (AIR) is injected into the air (AIR) injection port (30a) 30b (30c) because the air (AIR) is forced to mix into the ignition gas in the unburned state Another one of the incombustible ignition gases that are supplied with air from the first air injection port 30a and burned Combustion is supplied again to the unburned ignition gas from the second air injection port 30b located above the first air injection port 30a, and the air is supplied from the first air injection port 30a and the second air injection port 30b. The uncombusted ignition gas in the ignition gas to be burned is supplied with air again from the third air injection port 30c so that the air, ie, the incombustible ignition gas generated due to lack of oxygen, is completely burned.

In addition, the air supply shutoff valve (VALVE) 20, the connecting tables 24a, 24b, 24c, 24d and the turnbuckle 27 constituting the air supply part of the present invention are omitted. Then, the air supply shut-off valve 20 is equipped with an electrically operated electric valve (VALVE) in position to connect the electric valves (VALVE) to the power source for operating the tower tower ignition device (40), the tower tower ignition device (40) ) Air supply shutoff electric valve (VALVE) is operated at the same time, so the same effect as supplying and shutting off air of the air supply shutoff valve 20 which is connected to the tower opening and closing device can be obtained. In addition, the inlet combustion pipes 31a, 31b, 31c and the air inlets 30a, 30b, and 30c constituting the air injection portion are additionally installed in the non-combustible gas that is released. More effective forced combustion of reburn air can result in more effective complete combustion There.

Therefore, according to the present invention, incineration of a large amount of various harmful pollutants contained in the non-combustible gas is completely combusted by supplying oxygen into the non-combustible gas generated by lack of air in the ignition gas emitted from the tower. This makes it possible to obtain a great practical effect that can completely solve the air pollution emerging during dissipation.

Claims (1)

A pipe 21 for supplying air from the air tank 12 is provided, and the pipe 21 is provided with a pressure regulating valve 22 and an air supply shutoff valve 20, and an air supply shutoff valve spindle 23 and a dissipation valve. The tower opener spindle 26 is connected using connecting rods 24a, 24b, 24c and 24d, while maintaining the same pressure as the air supply line 21 connected to the air supply shutoff valve 20. To connect a plurality of injection port connecting pipe (31a) (31b) (31c) smaller than the diameter of the air supply pipe 21 so that the ignition device 40 to the connection pipe (31a) (31b) (31c) Air injection ports 30a, 30b, 30c are respectively mounted on the upper portion of the top of the tower 60 while deflecting the direction of the air injection holes 30a, 30b, 30c by an angle θ. By forming a funnel-shaped radial to reduce the diameter of the furnace to allow the air to be ejected to the upper ignition gas when the air injection through the air injection port (30a, 30b, 30c), Dispersion tower non-combustible ignition gas recombustion apparatus of the air injection port 30a, 30b, 30c are formed at different heights, respectively forming a stage.