KR100899686B1 - Partitioned demister with a function of rotationally removing adhered matter - Google Patents

Abstract

The present invention is located in the upper portion of the gas absorption tower for removing ammonia in the coke oven gas in the gas purification operation, the rotation to remove the attached impurities having a function of rotating and easily removed when the impurities are attached to the demister rotationally A demister device, comprising: first, second, and third rotary shafts 25, 27, and 31 installed through the upper portion of the gas absorption tower 7 to protrude outwardly and to be rotatable by the packing bearing member 60. The first, second and third demisters 33, 34 and 35 having a spray nozzle member 14 on the top thereof while the center thereof is fixed to the center; A demister rotation part 62 configured to be rotatable by connecting the first rotation shaft 25, the second rotation shaft 27, and the third rotation shaft 31 to the driving motor 21; A spline inserted into the guide 47 fixed to the device base 59 installed outside the absorption tower 7 so as to induce rotation by inserting a straight spline 49 formed at one end of the second rotary shaft 27. Rotating removal of the attachment, characterized in that consisting of the boss 48 and the demister return portion 61 consisting of an air cylinder 58 fixed to the rear portion of the device base 59 by being axially coupled to the rear end thereof. Provided is a split demister device.

Gas Absorption Tower, Demister, Packing Bearing, Spline, Sprocket,

Description

PARTITIONED DEMISTER WITH A FUNCTION OF ROTATIONALLY REMOVING ADHERED MATTER}

1 is a partial cutaway perspective view showing a conventional demister device installed in the gas absorption tower;

2 is a partial cutaway perspective view showing a state in which a split demister device for rotatably removing a deposit according to the present invention is mounted on a gas absorber;

Figure 3 is a perspective view showing the overall configuration of a split demister device for rotationally removing the attachment according to the present invention;

4 is a partially separated perspective view showing the configuration of a splitting demister device for rotatingly removing an attachment according to the present invention;

5 is a cross-sectional view and a partially enlarged view showing a demister return portion constituting a split demister device for rotationally removing a deposit according to the present invention;

FIG. 6 is an imaginary side cross-sectional view showing a packing bearing member for rotatably fixing a split demister device to a gas absorber to rotatably remove a deposit according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

7: gas absorption tower 60: packing bearing member 25: first rotating shaft 27: second rotating shaft                 

31: 3rd rotating shaft 14: spray nozzle member 33: 1st demister 34: 2nd demister

35: third demister 23: drive pulley 21: drive motor 24: drive sprocket

28: first driven sprocket 30: second driven sprocket 32: third driven sprocket

62: Demister rotation part 49: straight spline 48: spline boss

58: air cylinder 59: device base 61: demister return unit

The present invention relates to a splitting demister device for rotationally removing adherent impurities. More specifically, the present invention relates to a splitting demister device, which is located in an upper portion of a gas absorption tower for removing ammonia in coke oven gas in a gas purification operation. The present invention relates to a splitting demister device that rotates to remove adherent impurities that have a function of being easily removed by rotation.

In general, ammonia in the coke oven gas (COG) is guided to the gas absorption tower (7) through the gas transfer line (6), as shown in Figure 1 and the top of the gas tower (7) After passing through a fixed demister (5) fixedly installed in the contact, and is removed in contact with the soft water sprayed from the injection nozzle unit (4) installed on the upper portion, the mist, dust contained in the COG gas is fixed fixed demister ( It is removed in 5) and sent to the post process.

The conventional fixed demister 5 is a corrugated steel wire at regular intervals, and then accumulated in a thickness of 150 mm, and removes mist and dust in the gas. do.

However, the conventional fixed type demister constructed as described above has the following problems.

That is, the conventional fixed demister 5 is closed while removing tar and ammonium carbonate [(NH 4) 2 CO 3], which are impurities in the gas, and require a cleaning operation. However, ammonium carbonate [(NH4) 2CO3] and mucus tar are entangled together to form a hard crystal, so that the thickly stacked demister (5) contacts the soft water sprayed from the injection nozzle section (4) and the demister (5) at the top. Low efficiency has a problem that is very difficult to clean by spraying.

Due to this problem, the absorption tower 7 stops operating, and the demister 5 is lifted up on the worktable 8 of the absorber 7 to be removed, placed in a strong oxidizing agent solution, and treated for several days until the inside of the demister 5. As it can be completely washed, the worker's work burden is heavy, and the operation of the gas absorption tower 7 must be stopped for such cleaning work, and harmful gas and harmful dust due to the opening of the absorption tower 7 are leaked. And the complex problem of polluting the atmospheric environment.

In order to solve the above problems, the present invention divides the conventional fixed type demister, and rotates each, so that the washing liquid is in direct contact with the upper and lower surfaces while rotating during the cleaning operation to increase the dissolution effect, and melted by the demister rotation (centrifugal force) SUMMARY OF THE INVENTION An object of the present invention is to provide a splitting demister device that rotates to remove adherent impurities that act to facilitate removal (detaching) of impurities.

In order to achieve the above object, the present invention penetrates the upper side of the gas absorption tower and protrudes outward on both sides, and the center is fixed to the first, second, and third rotation shafts respectively installed to be rotatable to the absorption tower by the packing bearing member. First and second and third demisters having split nozzles rotatably installed in the upper inner space of the gas absorption tower 7 and having injection nozzle members thereon; A drive motor installed outside the absorption tower in power coupling with the drive pulley of the first rotary shaft, a first driven sprocket of the second rotary shaft coupled to the drive sprocket of the first rotary shaft, and fixedly inserted into the second rotary shaft. A demister rotation part consisting of a third driven sprocket of a third rotating shaft which is power-coupled with the second driven sprocket; A spline boss that guides the spline guide surface and a spline guide groove formed at one end of the second rotary shaft and is inserted into a guide fixed to a device base installed outside the absorption tower, and at a rear end thereof It provides a split demister device for rotating the removal of the attachment, characterized in that consisting of a demister return portion consisting of an air cylinder fixedly coupled to the rear portion of the device base.

On the other hand, the present invention is the splitting demister device consisting of the first, second, third demisters (33, 34, 35), the demister rotation unit 62 and the demister return unit 61 is absorbed by the gas Provided is a split demister device for rotationally removing the attachment, characterized in that installed in three layers on top of the tower (7),                     

The packing bearing member according to the present invention includes a bearing block inserting a bearing to an outer surface of the gas absorption tower, a bearing block for inserting respective rotating shafts therein, a nitrogen line communicating with a side portion thereof, and a central portion of the bearing block. Provides a splitting demister device for rotating the removal of the attachment, characterized in that the packing material and the packing cover is fixed to the end of the bearing block to secure the packing material.

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

2 is a partial cutaway perspective view illustrating a state in which a split demister device for rotatably removing an attachment according to the present invention is mounted on a gas absorption tower, and FIG. 3 is a split demister device for rotatably removing an attachment according to the present invention. Figure 4 is a perspective view showing the overall configuration, Figure 4 is a partially separated perspective view showing the configuration of a split demister device for removing the attachment in accordance with the present invention.

First, an independent configuration of the splitting demister device according to the present invention will be described with reference to the partially separated perspective view shown in FIG. 4.

That is, as shown in Figure 4, in the divided demister device according to the present invention, the rotary shafts 25, 27, 31 are laid out in the center of each of the three divided demisters 33, 34, 35, and 3 The divided demisters 33, 34, and 35 are formed of elliptical first and third demisters 33 and 35, and second demisters 34 which are located close to both sides to form a perfect circle. do.

FIG. 6 is an imaginary side cross-sectional view showing a packing bearing member for rotatably fixing a split demister device to a gas absorber to rotatably remove a deposit according to the present invention.

As shown in FIG. 4 or FIG. 6, bearing blocks 46 for receiving bearings 41 at both ends of each of the rotational shafts 25, 27, 31 of the three divided demisters 33, 34, 35. Nitrogen line 42 is provided in the center of the, and the packing member 44 is inserted into the bearing block 46 on the outside, and fixed to the end of the bearing block 46 to fix the packing member 44 The packing cover 43 is formed so that the packing bearing member 60 is installed on the outer surface of the absorption tower 7 by the fixing bolt 45.

The three-divided demisters 33, 34, and 35 installed in the upper part of the fixed door absorption tower 7 at the center of each of the rotary shafts 25, 27, and 31 are rotatable simultaneously by the demister rotation part 62. To be installed.

The demister rotation part 62 is fixed to one side of the first rotation shaft 25 of the first demister 33 by inserting the driving pulley 23 inward, and fixing the driving sprocket 24 to the outside thereof. ,

The drive pulley 23 is power coupled to the drive motor 21 and the drive belt 22 provided with the fixed base 21a formed on the outer surface of the absorption tower 7.

In addition, the drive sprocket 24 axially coupled to the first rotary shaft 25 is driven with the first driven sprocket 28 inserted into and coupled to the outermost side of the second rotary shaft 27 arranged in the second demister 34. The chain 26 is power coupled, and the second driven sprocket 30 is inserted into the inside of the second rotary shaft 27 and coupled to the shaft 26.

An elliptical third demister 35 is positioned at one side of the second demister 34 configured as described above, and the third rotary shaft 31 installed therein includes a third driven sprocket 32 inserted and coupled thereto. The second driven sprocket 30 coupled to the two rotary shafts 27 and the drive chain 29 are power coupled.

Fig. 5 is a sectional view and a partially enlarged view showing a demister return portion constituting a split demister device for rotationally removing a deposit according to the present invention.

As shown in Fig. 4 or 5, the demister return unit 61 of the present invention is rotated by the drive motor 21 to change the position of the second demister 34 whose position is changed before rotation. It is an apparatus part which functions to return the 1st thru | or 2nd demisters 33 and 35 power-coupled with this by returning to the state before rotation.

The demister return unit 61 performing the above function is provided with a straight spline 49 at the other end of the second rotation shaft 27 of the second demister 34, and inserts the spline 49. A spline boss 48 capable of rotating the two rotary shafts 27 is inserted into the spline guide 47.

An air cylinder 58 is connected to one side of the spline boss 48, and an electromagnetic valve 56 is installed at the air line 55 of the air cylinder 58.

In addition, the spline guide 47 and the air cylinder 58 is fixed to the device base 59 provided in the absorption part of the absorption tower (7), the spline boss 48 inside the device base (59) Limit switch 53 is installed to detect the operation of.

Split demister device for rotationally removing the attachment according to the present invention configured as described above, as shown in Figures 2 to 3, three sets of each layer in the vertical direction from the top of the absorption tower (7) installed Each demister is provided with a layer injection nozzle member (14-1, 2, 3).                     

Hereinafter, the effect | action of this invention is demonstrated in detail.

As shown in Fig. 2 or 4 with reference to the above-described configuration, and the pressure sensor (9a, 9b) provided in the upper and lower portions of the absorption tower 7 is provided with a split demister device for rotationally removing the attachment according to the present invention; When an abnormal differential pressure is instructed from the connected differential pressure gauge 9, the gas supply and discharge valves 1 and 2 are closed, and the electromagnetic valves 56-1, 2 and 3 constituting the demister return unit 61 are operated to operate the air. The cylinders 58-1, 2, 3 are reversed.

When the air cylinders 58-1, 2, and 3 are retracted, the splines 49 are released by the spline boss 48, and the number of the air cylinders 58-1, 2, and 3 are respectively installed on the injection nozzle members 14-1, 2, and 3. The supply electron valves 11, 12, 13 are opened.

When water is injected from the injection nozzle members 14-1, 2, and 3 as described above, when the driving motors 21-1, 2, and 3 driving the split demister according to the present invention are operated, the first demister As the 33 rotates, the second and third demisters 34 and 35 rotate.

When the divided demisters 33, 34 and 35 are rotated in this way, the hot water makes direct contact with the upper and lower parts of the demisters 33, 34 and 35 evenly, thereby speeding up the dissolution rate. 33, 34, 35) by the centrifugal force generated when the rotation is to act to dissolve the dissolved impurities easily.

When the demister cleaning operation is completed, when the air cylinder 58 is advanced by the operation of the electromagnetic valve 56 constituting the demister return unit 61, the demister cleaning part is formed on the rotation shaft 27 of the second demister 34. The straight spline 49 is constrained to the spline boss 48. At this time, when the limit switch 53 detects and operates the spline boss 48, the driving motors 21-1, 2, and 3 are operated. ), The water supply electromagnetic valves 11, 12, 13 are cut off, the water supply of the injection nozzle members 14-1, 2, 3 is stopped, and the gas supply and discharge valves 1, 2 are opened. The absorption tower 7 is operated again.

When the spline 49 is restrained by the spline boss 48, the center of the second demister 34 is horizontal, and the second rotary shaft 27 and the first and third axes 25 and 31 thereof are horizontal. ) Are connected to the drive chains 26 and 29, so that the first and third demisters 33 and 35 are also horizontal, so that each of the demisters 33, 34 and 35 is in a plane state before the rotation operation. To form a single demister connected to

As described above, according to the present invention, there is no harmful gas leak compared to the conventional washing by the manpower during the demister cleaning operation of the gas absorption tower that removes the ammonia contained in the coke oven gas. There is no occurrence, and the washing effect is also very good, which greatly shortens the washing time, thereby greatly reducing the downtime of the equipment, thereby contributing to the efficient and stable operation of the equipment.

Claims (4)

First, second, and third rotation shafts 25, 27, and 31 installed through the upper portion of the gas absorption tower 7 to protrude to both sides and rotatably installed in the absorption tower 7 by the packing bearing member 60. First, second, and third demisters 33, 34, and 35 having a spray nozzle member 14 disposed thereon, the center being fixed to the upper part of the gas absorption tower 7 so as to be rotatable. )Wow; The power motor 21 is coupled to the drive pulley 23 of the first rotary shaft 25 and the drive motor 21 is installed outside the absorption tower 7 and the drive sprocket 24 of the first rotary shaft 25 The third driven sprocket of the third rotary shaft 31 which is power-coupled with the first driven sprocket 28 of the second rotary shaft 27 and the second driven sprocket 30 inserted and fixed to the second rotary shaft 27. A demister rotation unit 62 composed of (32); An apparatus base installed outside the absorption tower 7 by forming a spline guide surface 52 and a spline guide groove 51 for guiding the straight spline 49 formed at one end of the second rotary shaft 27 ( Demister return portion consisting of a spline boss 48 inserted into the guide 47 fixed to 59, and an air cylinder 58 fixedly coupled to the rear end of the device base 59 by being axially coupled to the rear end thereof. And a splitting demister device for rotatingly removing the attachment, characterized in that it comprises (61). The method of claim 1, The splitting demister device comprising the first, second and third demisters 33, 34, 35, the demister rotation part 62, and the demister return part 61 is provided in the upper portion of the gas absorption tower 7. Splitting demister device for rotating the removal of the attachment, characterized in that provided in three layers. The method of claim 1, The packing bearing member 60 communicates with the bearing block 46 for inserting the bearing 41 into the outer surface of the gas absorption tower 7 and inserts the rotating shafts 25, 27, and 31 therein, and the side portions thereof. Nitrogen line 42, the packing member 44 is inserted into the central portion of the bearing block 46, and the packing cover 43 is fixed to the end of the bearing block 46 to secure the packing member 44 Split demister device for rotationally removing the attachment, characterized in that consisting of. The method of claim 1, The demister return unit 61 has a limit switch 53 installed on the inner lower surface of the device base 59 to detect the forward position of the spline boss 48 forward and backward by the air cylinder 58. Split demister device for rotationally removing the attachment, characterized in that comprising a.

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