KR100825303B1 - Apparatus for removing and treating tar accumulated on the pipe arrangement of annealing furnace - Google Patents

Abstract

The present invention relates to an apparatus for removing and treating tar in an annealing furnace pipe and includes a tar discharge pipe 23 penetrating through the collecting tanks 2a to c to be connected to the flexible air hose 5, A tar removing unit 40 for removing rubbing by an air jetting head 1 to be inserted and a tar discharged from the venturi tube 18, a primary collecting tank 2c, and a secondary collecting tank 2b A collecting tank 3 which is separated into a tar collecting unit 50 for collecting tar and collecting tar by collecting water and an independent collecting tank 3a, 3b, 3c, 3d, 3e for introducing the tar aqueous solution collected therefrom And a tar separating and collecting part (60) for separating the tar by the specific gravity difference of the tar. The apparatus for removing and treating tar of an annealing furnace pipe is provided.

As described above, the present invention can always treat tar accumulated in an annealing furnace pipe, thereby preventing corrosion, protecting an operator from harmful substances, and reducing air pollution.

An annealing furnace, tar, tar remover, tarpaulins, tar separating and collecting part

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus for removing tar and treating a pipe of an annealing furnace,

1 is a perspective view showing a problem of a tar removing method of a conventional annealing furnace pipe;

2 is a perspective view showing the overall configuration of an apparatus for removing and treating tar in an annealing furnace pipe according to the present invention;

3 is a detailed view of each part constituting the apparatus for removing and treating tar of the annealing furnace pipe according to the present invention;

4 is a detailed view of a tar trap unit constituting an apparatus for removing and treating tar of an annealing furnace pipe according to the present invention;

5 is a side cross-sectional view of a tar treatment unit constituting an apparatus for removing and treating tar of an annealing furnace pipe according to the present invention.

DESCRIPTION OF REFERENCE NUMERALS

5: flexible air hose 23: tar discharge pipe 20: annealing furnace piping

1: air jet head 25: hose drum 6: air compressor 40: tar remover

18: Venturi tube 2c: Primary collection tank 2b: Secondary collection tank 2a: External collection tank

50: tar trapping unit 29: mixing piping 14: suction upward curved pipe 11:

10: spout downward bend 3a, 3b, 3c, 3d, 3e: independent collection tank 13: partition                 

3: collection tank 60: tar separation collection unit

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for removing and treating tar in an annealing furnace pipe, and more particularly, To an apparatus for removing and treating tar in an annealing furnace pipe for effectively treating dust.

Generally, due to bad odor and dust adhered to the process of treating various harmful substances contained in coke oven gas, which is used as a heat source in the annealing process of cold-rolled steel sheet, , The flame can not be uniformly sprayed during the heat treatment, and due to localized heating, the plate is brought into contact with the plate, and the material is varied due to uneven temperature, resulting in an increase in energy cost.

Conventionally, a large-scale tar removal device is installed in a Hwasung factory to remove tar contained in the coke oven gas, but it is not the current technology to process the end of the cold rolling process.

Therefore, in the end line using the coke oven gas, it is inevitably required to conduct electrical or mechanical processing by itself. In the cold rolling process, the annealing line belongs to the distal end portion, and in particular, There is a problem that the cost rises due to the decrease of the thermal efficiency and the pipe is corroded.

Also, if the pipe is blocked locally, the flow rate will be insufficient, and defects due to local heating due to local heating will increase, which may lead to material deviation.

On the other hand, in the process of processing when the tar in the pipe accumulates. As shown in FIG. 1, a flange 22 is provided at an intermediate portion of the pipe 20 in the E portion, and a cloth or a mop is bundled into the end portion of the flange 22 by using a wire.

At this time, if the air is blown into the inside of the flange, there is no apparatus to be treated, so that noxious gas and tar powder are sprayed around the worker, making it impossible to approach the worker and released into the atmosphere.

In order to solve this problem, a method of spraying water into the pipe 20 is used. However, this method also generates a large amount of wastewater, The treatment is difficult, and it takes a long time to dry due to the residual water in the piping, which limits its use.

Another method of solving the above problems is to install the connecting flange 22 on each part of the pipe, disassemble the pipe by a predetermined period, clean the inside, and reassemble.

However, the above method also has a problem that the work time is excessive, the work of the worker is increased, and the worker avoids the work due to the harmful tar.

 In order to solve the above-mentioned problems, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method for removing tar fixed to an inner circumference of a pipe by automatically discharging the tar, The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus for removing and treating tar in an annealing furnace pipe which can improve the productivity by increasing the operating rate of the furnace.

In order to accomplish the above object, the present invention provides a method of manufacturing a flexible air hose, including: a tar discharge pipe penetrating a collecting tank connected to a flexible air hose; an air injection head inserted into an annealing furnace pipe; A hose drum rotatable by a driving motor, and an air compressor installed on one side of the hose drum for supplying compressed air to the flexible air hose, and a tar discharger for discharging the tar discharged from the tar descaling A second collecting tank which is accommodated by the tar discharge pipe and is fixed by the tar discharge pipe and an outer collecting tank which receives the second collecting tank and receives the water from the venturi pipe; And a water collecting portion formed by the water collecting portion, A suction downward bending pipe for sucking the aqueous solution from the mixing pipe into which the aqueous tar solution is introduced, a transfer pipe for transferring the aqueous solution upwardly to the upper side thereof, an ejection downward bending pipe connected to the upper end of the bending downward bending pipe, And a tar separating and collecting unit formed of a collecting tank separated by a partition by an independent space part.

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

FIG. 2 is a perspective view showing an overall configuration of an apparatus for removing and treating tar in an annealing furnace pipe according to the present invention, and FIG. 3 is a detailed view of each part constituting the apparatus for removing and treating tar in an annealing furnace pipe according to the present invention, FIG. 4 is a detailed view of a tar trapping part constituting an apparatus for removing and treating tar in an annealing furnace pipe according to the present invention, and FIG. 5 is a side sectional view of a tar treatment part constituting an apparatus for removing and treating tar in an annealing furnace pipe according to the present invention .

2, the present invention includes a tar discharge pipe 23 which is connected to the flexible air hose 5 so as to pass through the collecting tanks 2a to 2c and an air discharge nozzle 23 which is inserted into the annealing furnace pipe 20, A hose drum 25 which is rotated by a drive motor 24 so as to wind or wind the flexible air hose 5 and a hose drum 25 which is provided on one side of the hose drum 25 to compress And an air compressor (6) for supplying air.

The present invention is also characterized by a venturi tube 18 penetratingly connected to a tar discharge pipe 23 for discharging the tar discharged from the tar remover 40 and a primary A second collecting tank 2b which is accommodated therein and is fixed by the tar discharge pipe 23 and an outer collecting tank 2a for receiving the second collecting tank 2b and a second collecting tank 2b which receives water from the venturi pipe 18, And a water collecting section (50) composed of a water supply line (4)

In addition, the present invention is characterized in that a suction upward bending pipe 14 for sucking the aqueous solution from the mixing pipe 29 into which the tar aqueous solution collected by the tar trapping unit 50 flows, and a transfer pipe 11 and a discharge downward bending tube 10 penetratingly connected to the upper end thereof and separated by a partition 13 into independent collecting tanks 3a, 3b, 3c, 3d, 3e such that the piping facilities are independently installed And a tar separating and collecting unit 60 composed of a collecting tank 3.

The structure of the tar remover 40 will be described in detail. An air jetting head 1 is inserted into a pipe 20 to remove tar from a pipe 20 of the annealing furnace. And a backflow pipe 21 for backflowing air is formed therein.

The air 7 that supplies air to the air injection head 1 is increased in pressure through the air compressor 6 and becomes a flexible hose 5 so that it is wound around the drum 25, And is wound around and wound around.

The cross-sectional structure of the flexible air hose 5 is hollow inside so that the air 7 can be supplied into the hollow air hose 5 and the flexible air hose 5 5) so that it can always be used, and the injection head 1 is advanced forward by the force of the high-pressure jet air.

After completion of the cleaning, supply of the air 7 is stopped, and the flexible air hose 5 is rewound by rotating the drive motor 24 in the reverse direction.

3, the flanges 22a and 22b are tapered, and the sealing material 26 is also formed to be tapered so that the degree of pressure leakage And can be adjusted by bolts according to

3, an injection port 19 for injecting air is formed in the interior of the injection head 1, and the backflow pipe 21 and the flexible air hose 5 are connected to a pipe (28) for holding the center of gravity in the tank (1) is formed smaller than the diameter of the pipe (20), so that the tar (27) pushed by the air constitutes a tar trapping part And collected in the collecting baths 2a to c.

4, the configuration of the tar trapping unit 50 constituting the present invention will be described. The tar trapped by the tar removal unit 40 enters the collection tanks 2a to c. The venturi tube 18 is provided inside the oven to accelerate the flow rate of the air and to form the water supply line 4 to the outside so as to collect tar backward in the primary collecting tank 2c Processing is performed.

The lumps fixed with the heavy tar by the air injected by the action of the venturi tube 18 fall immediately fall and the fine tar rises again so as to be collected in the secondary collection tank 2b and fall down. ).

According to the above-described construction, the fall-off pipe 17 is formed under the secondary collecting tank 2b so that water and tar falling downwardly spread, and the inside of the external collecting tank 2a is formed spirally by the pressure of air Therefore, it is circulated.

When the water and tar collected in the outer collecting tank 2a of the tar trapping unit 50 having the above-described configuration are equal to or higher than a predetermined level, they are led to the next stage of the tar separating and collecting unit 60, It is a liquid and should be separated and treated.

FIG. 5 shows a configuration of a tar separating and collecting unit according to the present invention. The tar aqueous solution delivered from the tar trapping unit 50 is collected in the collecting tank 3, Is made by the level of the level (16) on the mixing pipe (29).

Since the partition 13 is formed inside the collecting tank 3, it is divided into separate collecting troughs 3a, 3b, 3c, 3d and 3e which are separate spaces. Referring to the detailed view of the C portion, The water-soluble solution 30 that has entered the first collecting tank 3a of the collecting tank 3 from the mixing pipe 27 passes through the inlet pipe 14 by the pressure of the air and passes through the transfer pipe 11 And the transferred aqueous solution 37 is transferred stepwise to each of the second to fifth collecting tanks 3b, 3c, 3d and 3e and processed in the same manner as the above-mentioned transferring operation Loses.

The inner pressure of the collecting tank 3 is discharged through the vent pipe 9 and the pressure gauge installed on the upper part of the collecting tank 3 The discharge valve 12 is opened when the water soluble tar is filled in the collecting tanks 2a to c and the collecting tank 3 by a predetermined level or more, Can be adjusted.

Hereinafter, the operation of the present invention will be described in detail.

2, the power for advancing the air ejection head 1 connected to the flexible air hose 5 constituting the tar remover 40 is controlled by the pressure of the pure air, And is advanced by the frictional force with the furnace pipe 20 due to the flow rate and the flow rate through the backflow pipe (21).                     

In the above process, tar adhered to the inner surface of the annealing furnace pipe 20 is removed, and a driving motor 24 for adjusting the speed of the flexible air hose 5 according to the amount of tar in the pipe 20 is provided The forward speed and the flow rate are determined according to the bending angle of the backflow tube 21 in the detailed view of part B of FIG.

Explaining the operation of the tar trapping unit 50 with reference to FIG. 4, the tar entered into the trapping tanks 2a to c constituting the tar trapping unit 50 by the high-pressure air flows into the venturi The flow rate is changed by the pipe 18.

When passing through the venturi tube 18, water is supplied from an external water supply line 4 to be sprayed. Since tar is water-soluble, it is mixed into water-soluble solution 30.

In this way, very fine tar is dissolved in water, and the massive tarball falls down by weight. The tar which has reached the level of the collecting troughs 2a to 2c is melted into a water-soluble solution. Since the upper part of the collecting tank 3 has a circular shape, The water is circulated between the bath 2b and gradually comes into contact with the lower water surface to become a water-soluble solution.

It is important to manage the level 16 of the collection vessels 2a to 2c and it is necessary to maintain the height of the mixing pipe 29 to collect the tar completely.

That is, the tar is not dissolved in the water through the air, and the tar can not pass to the collecting tank 3 of the tar separating and collecting unit 60. The trunk tubing 17 is provided at the lower part of the collecting tank 3, The tar is brought into contact with water, and the tar rising in the opposite direction is circulated to bring it into contact with water.

4, the water-soluble solution 30 flowing through the mixing pipe 29 in the collecting baths 2a to 2c has a distance (gap) to the suction pipe 14 through the transfer pipe 11 A part of which is filled in the first collecting tank 3a and a part of which is passed to the next second collecting tank 3b by the pressure of the air.

In the second collecting tank 3b, since there is a difference in level between the first collecting tank 10 and the ejecting bend 10, a substance having a large specific gravity or a non-wetting property remains and the aqueous solution partially dissolved in the water is transferred to the third collecting tank 3c I go over.

When the above process is repeated, the last collecting tank 3e is filled with tar, and the air is discharged to the atmosphere through the vent pipe 9.

If the amount of water in the collecting tank 3 is large, it is possible to adjust the water level by connecting a special vehicle (not shown) treated with the discharge valve 12. In addition, the level gauge and the water pipe An alarm device such as a warning lamp may be provided when a high pressure is generated in the collection vessels 2a to c and the collecting tank 3, but not shown in the present invention.

The tar removing device according to the present invention can be manufactured with different sizes and sizes according to the amount of tar removed.

As described above, according to the present invention, the tar accumulated in the piping portion of the annealing furnace is removed, collected, collected and collected to increase the operating rate of the annealing furnace to improve the productivity and to prevent the sticking (sticking) phenomenon Thereby improving the quality of the product. The tar accumulated in the pipe can be treated at all times, thereby preventing corrosion, protecting workers from harmful substances, and reducing air pollution.

Claims (4)

A tar discharge pipe 23 penetrating through the collecting tanks 2a to 2c connected to the flexible air hose 5 and an air jetting head 1 inserted into the annealing furnace pipe 20 and the flexible air hose 5 A hose drum 25 rotated by a drive motor 24 so as to wind or wind up the flexible air hose 5 and an air compressor 6 installed at one side of the hose drum 25 for supplying compressed air to the flexible air hose 5 Tar remover 40; A venturi pipe 18 penetratingly connected to a tar discharge pipe 23 for discharging the tar discharged from the tar remover 40 and a primary collection tank 2c which is accommodated by the tar discharge pipe 23 while being accommodated therein, A secondary collection tank 2b which is accommodated by the tar discharge pipe 23 while accommodating the secondary collection tank 2b; an external collection tank 2a for receiving the external collection tank 2b; a water supply line (not shown) for supplying water from the venturi pipe 18 4); A suction upward bending pipe 14 for sucking the aqueous solution from the mixing pipe 29 into which the tar aqueous solution collected by the tar trapping unit 50 flows, a transfer pipe 11 for transferring the aqueous solution upwardly to the vicinity thereof, (3) separated by a partition (13) by independent collecting tanks (3a, 3b, 3c, 3d, 3e) such that the piping facilities are independently installed, And a tar separating and collecting unit (60) made up of the tar separating and collecting unit (60). The method according to claim 1, The air jetting head (1) constituting the tar remover (40) is characterized in that a plurality of air backflow tubes (21) are coupled so that the head (1) And a processing device. The method according to claim 1, Characterized in that the primary and secondary collecting tanks (2c, 2b) constituting the tar trapping part (50) are constructed in the form of a fall pipe so that the lower discharge part Removal and treatment device. The method according to claim 1 or 3, Characterized in that the secondary collection tank (2b) constituting the tar trapping part (50) is provided with a trumpet pipe (17) at the lower part so as to spread water and tar over the lower part. .

Images