KR100530045B1 - Apparatus entrapping cokes dust in coke dry quenching - Google Patents

Abstract

The present invention is to collect the coke in the circulation gas pipe in the process of heat exchange by circulating the high temperature in the chamber (CHAMBER) to the boiler (BOILER) side through the circulation gas pipe (HOT GAS DUCT) in the dry fire extinguishing device of the coke oven. The present invention relates to preventing a phenomenon in which the heat exchange efficiency between the circulation gas and the boiler decreases due to the accumulation of powdered coke in the boiler tube due to the decrease in the efficiency of collecting the collected coke, and the coke mass is blocked at the bottom of the boiler to block the airflow exit. The present invention relates to a dust coke collecting device of a dry fire extinguishing system that can increase productivity according to operational stability by preventing the phenomenon.

The present invention, in the dry fire extinguishing device of the coke oven circulates the high temperature in the chamber (BOMBER) through the circulation gas pipe (HOT GAS DUCT) to the boiler (BOILER) side to collect the coke in the circulation gas pipe in the process of heat exchange In the circulating gas pipe (HOT GAS DUCT) of the dry fire extinguishing system, a plurality of vortex preventing plates for preventing vortex formation in the flow of the circulating gas, and imparting a flow resistance to the circulating gas to provide a bunk coke in the circulating gas Provided with a coke collecting device of a dry fire extinguishing facility having a plurality of control panel for dropping to the collecting unit to collect the coke.

Description

Powder coke collecting device for dry fire extinguishing equipment {APPARATUS ENTRAPPING COKES DUST IN COKE DRY QUENCHING}

The present invention is to collect the coke in the circulation gas pipe in the process of heat exchange by circulating the high temperature in the chamber (CHAMBER) to the boiler (BOILER) side through the circulation gas pipe (HOT GAS DUCT) in the dry fire extinguishing device of the coke oven. In more detail, the bunker coke is accumulated in the boiler tube due to the deterioration of the bunker coke collection efficiency and the circulation gas and

Prevents the dropping of heat exchange efficiency between boilers, and prevents wind-blocking phenomenon in which coke lumps block the circulating air volume outlet by accumulating coke lumps at the bottom of the boiler. Relates to a device.

Generally, red coke produced in a coke oven is a wet digestion method in which a fire extinguishes by water in a fire extinguishing tower, and a coke is loaded into a cooling crane with a loading crane after loading the coke into a bucket (not shown). There is a dry extinguishing method which is charged and digested with circulating gas (nitrogen: 75%, other air). Recently, the latter method has been widely used.

The dry fire extinguishing method as described above uses a cooling fire extinguishing method using nitrogen. As shown in FIG. 1, when the circulating gas is moved from the cooling tower chamber 100 to the boiler 110, the pulverized coke due to the amount of circulating gas ( Particle size less than or equal to 3 mm).

Therefore, the circulation gas pipe 120 is made of a gravity sedimentation structure to collect the bun coke

There is a collection tank 125 that can be, but there is a limit to the collection of powdered coke in the conventional gravity sedimentation (natural fall) method when operating the facility.

Therefore, conventionally, the coke is accumulated in the boiler 110 tube to reduce the heat exchange efficiency between the circulating gas and the boiler 110, the bunk coke 130 is accumulated in the boiler bottom 112 to narrow the circulation path of the circulating gas boiler (110) The inlet pressure (maximum: -150MMH2O) is raised to cause a windage blockage in which the bun coke in the chamber blocks the gas flow of the circulation gas pipe 120, thereby preventing normal operation of the dry fire extinguishing system.

The present invention has been made to solve the above conventional problems, the object of the present invention is that the dry coke oven in the dry fire extinguishing apparatus due to the reduction in the efficiency of collecting the coke bunk coke accumulated in the boiler tube, the heat exchange efficiency between the circulation gas and the boiler falls It is to provide a dust coke collecting device of the dry fire extinguishing equipment to prevent productivity, and to prevent the windage blockage phenomenon in which the coke lumps to block the gas flow by accumulating the powdered coke at the bottom of the boiler.

In order to achieve the above object, the present invention, in the dry fire extinguishing apparatus of the coke oven, the high temperature in the chamber (CHAMBER) through the circulation gas pipe (HOT GAS DUCT) to the boiler (BOILER) side in the process of heat exchange in the circulation gas pipe in the process An apparatus for collecting powdered coke, comprising: a plurality of vortex preventing plates which prevent vortex formation in the flow of the circulating gas in a circulating gas pipe of a hot fire extinguishing facility, and impart a flow resistance to the circulating gas By providing a plurality of control panel for dropping the powdered coke in the circulation gas to the collecting portion to collect the powdered coke collected by the powder coke collecting device of the dry fire extinguishing equipment.

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

The present invention is a device for collecting the powdered coke in the circulation gas pipe 120 in the process of heat exchange by circulating the gas to the boiler (BOILER) side through the circulation gas pipe (HOT GAS DUCT), the circulation gas pipe of the dry fire extinguishing facility ( A plurality of vortex blocking plates 5a, 5b, 5c for preventing vortex formation in the flow of the circulating gas in the stream 120 are provided, as shown in Figs. 2 and 3, circulating gas pipe 120 ), Vortex barrier plates 5a, 5b, 5c, 21 having an arch-shaped flow path p are arranged in turn, and the first one 5a is a powdered coke collecting portion 125. Another vortex prevention plate 5b and the vortex prevention plate 5c are fixed to the inner wall at both ends of the point parallel to the upper end of the upper side, and are raised to a predetermined height h from the first vortex prevention plate 5a. The plurality is fixed to the inner wall of the circulation gas pipe (120).

That is, the initial vortex blocking plate 5a and the vortex blocking plates 5b and 5c on the rear side respectively form a difference h of a predetermined height.

In addition, a flow resistance is imparted to the circulating gas to a portion in contact with the upper surface of each of the vortex preventing plates 5a, 5b, and 5c to drop the powdered coke 112 in the circulating gas to the collecting unit 125. A plurality of throttle 15 is mounted.

As shown in FIG. 3, the adjusting plate 15 is rotatably mounted on the upper side of each of the vortex blocking plates 5a, 5b and 5c, which are respectively shown in FIG. The lower fixing part 22 is fixed by the fixing bolt 25, the center of the lower fixing part 22 is a structure in which a hole is formed so that the vertical axis 39 can be inserted, and the lower fixing part 22 is centered. There is a groove of a certain size in the bearing (26a) can enter the structure.

Then, the lower cover (37b) is fixed to the upper surface of the lower fixing portion 22 of the control plate 15 by the fixing bolt 24a.

And, the adjustment plate 15 of the upper side of the lower fixing portion 22 has a plate portion 40 made of a flat structure plate fixed to the outside of the vertical axis 39, as shown in Figure 6, Maintain the angle, the connection angle of approximately 120 degrees, is fixed on both sides by the adjustment plate fixing bolt 44, the upper and lower ends of the rear side of the adjustment plate 15 has an inclined surface 41 of approximately 45 degrees, The part except the lower end forms the convex curved surface 41a.

In addition, the upper end of the vertical axis 39 extends to the upper outer side of the circulation gas pipe 120, forms a square head 42, and a groove 42a is formed horizontally so that the link pin 43 is inserted by the insertion of the link pin 43. The part 35 is firmly fixed and is prevented from coming off.

And, as shown in Figure 5, the link portion 35 is connected to each other as a link bar 36 between the other link portion 35 extending from the other side from the top of the circulation gas pipe 120 And is coupled by the link bolt 36a.

On the other hand, the upper portion of the vertical axis 39 is provided with a circular projection 38 to maintain the center of rotation of the vertical axis 39, the lower surface of the projection 38 is the upper surface of the circulation gas pipe 120 Has a structure in contact with the bearing 38a.

In addition, a circular sealing ring 38b is positioned on the upper surface of the protrusion 38. In addition, the upper surface cover (37a) of the vertical axis (39) coupled with the control plate 15 is fixedly fixed to the upper surface of the circulation gas pipe (120) by a fixing bolt (24).

In addition, the worm wheel 34a is vertically inserted and fixed under the upper link portion 35 of one of the vertical shafts 39 of the vertical shaft 39, and is symmetric with the height at which the worm wheel 34a on the vertical shaft 39 is located. The low worm gear 34 is positioned horizontally, the worm gear 34 is rotatably coupled to the fixing brackets 33a and 33b on both sides, and the fixing bracket is circulated by the fixing bolt 25. 120) It is fixed to the upper surface.

In addition, the worm gear 34a is coupled to the coupling 32 in an integrated structure with the horizontal shaft 31, and one side end of the horizontal shaft 32 forms a rotation shaft of the conversion control motor 3.

Meanwhile, as shown in FIG. 2, the dust concentration sensor 6 (6a) and the boiler 110 are directed upward from the front side of the powdered coke collecting unit 125 and the inlet side of the boiler 110 at the rear end thereof. ) Equipped with a flow rate sensor (8) on the upper surface of the inlet side is fixedly coupled.

And, if the measured value from the sensors and the measured value corresponds to a preset set value, the controller 80 is made of a computer for operating the motor 3 to rotate the control plate 15 is equipped with It becomes a configuration.

As shown in FIG. 7, when the circulating gas passes through the circulating gas pipe 120, the bund coke collecting device 1 of the circulating gas pipe configured as described above is first shown in FIG. 7. Dust concentration signal (e.g., K value: 100) is detected from the dust concentration sensor 6 (6a) fixed to the lower surface of the front end of the circumferential surface), and the amount of circulating gas air that has passed through the dust collection unit 125 (e.g., For example: 220,000N / M3 ~ 240,000N / M3) passes through the rear stage concentration sensor 6, 6a at the inlet side of the boiler 110, where dust concentration (for example, K in the circulating gas at the rear stage) is passed. When the value 80 is detected and is higher than the predetermined set value (K value: 20) (shear concentration value-rear concentration value) compared with the dust concentration value (K value: 100) detected at the front end, operation of the control plate 15 is required. Since the reverse control signal is transmitted from the control panel 8 to the conversion control motor 3, the control plate 15 is closed, and the bunk coke 112 in the circulation gas collides with the control plate 15. Min is dropped into the coke collection section 125.

This operation is the worm gear 34 is rotated by the operation of the motor 3, the worm gear 34 rotates the worm wheel 34a, the worm wheel 34a is connected to the square head 42 Rotating adjacent control plates 15 through the link unit 35 and the link bar 36 are rotated at the same angle.

Therefore, the plurality of control plates 15 located inside the circulation gas pipe 120 are all directed toward the entry side of the circulation gas, as shown in FIG. 7A). The flow passage p is largely blocked to increase the flow resistance. Therefore, the dust coke 112 and the dust 112 in the circulating gas collide with the plate portion 40 of the control plate 15 to fall to the bottom and is collected in the collecting unit 125.

 The dust coke and dust 112 are collected in the same manner as described above, and when the dust concentration values at the front and rear ends from the concentration detection sensors 6 and 6a are lower than the set value, the conversion control motor 3 rotates forward. As shown in FIG. 7B), the throttle plate 15 is opened. This operation is the reverse of the above, as the control plate 15 is rotated in this way the flow resistance of the circulation gas is reduced to increase the flow rate.

Then, when the control plate 15 is operated in accordance with the fluctuations in the concentration and set value of the powder coke 112 at the front and rear ends of the circulation gas pipe 120, the control plate 15 is closed due to the circulation passing through the boiler 110 side. In order to solve the problem that the gas flow rate becomes too small, when the flow rate detection value "K" detected from the flow rate detection sensor 8 at the inlet side of the boiler 110 becomes smaller than the flow rate setting value (220,000 N / M3), the control plate 15 The drive which operates the motor 3 is made to open gradually.

On the other hand, the vortex blocking plate (5a) (5b) (5c) in the circulation gas pipe 120 when the circulation gas passes through the upper portion of the dust collection unit 125 while passing through the circulation gas pipe (120) In this case, vortex phenomena occur, in which the vortex blocking plates 5a, 5b, and 5c arranged in sequence form a flow path p of the circulating gas so that the circulating gas can pass smoothly. .

Thus, the present invention by collecting the coke coke 112 effectively in the dry fire extinguishing device of the coke oven to prevent the phenomenon that the heat exchange efficiency between the circulating gas and the boiler 110 is reduced by accumulating the coke 112 in the boiler tube, 110) The coke lump is accumulated at the lower end of the coke lump to prevent the blockage of the wind to block the circulating air flow exit is to obtain an effect that can increase the productivity according to the operation stability in the dry fire extinguishing device of the coke oven.

1 is a block diagram showing a powder coke collecting device of a dry fire extinguishing system according to the prior art;

Figure 2 is a block diagram showing a powder coke collecting device of the dry fire extinguishing equipment according to the present invention;

3 is a partial cutaway perspective view showing a vortex preventing plate provided in the powder coke collecting device of the dry fire extinguishing system according to the present invention;

Figure 4 is a block diagram of a throttle plate equipped in the powder coke collecting device of the dry fire extinguishing equipment according to the present invention;

5 is a block diagram of a throttle drive motor provided in the powder coke collecting device of the dry fire extinguishing system according to the present invention;

Figure 6 is a detailed view of the throttle plate provided in the powder coke collecting device of the dry fire extinguishing equipment according to the present invention, a) is a perspective view, b) is a plan view, c) is a side view;

7 is an operating state diagram of the throttle plate provided in the powder coke collecting device of the dry fire extinguishing equipment according to the present invention,

a) turning throttle blocking the circulation gas pipe,

b) is the throttle closed the circulating gas pipe.

Explanation of symbols on main parts of drawing

3 ..... Conversion control motor 5a, 5b, 5c.

6,6a ..... Dust Concentration Sensor 8 ..... Flow Detection Sensor

15 ..... throttle 26a ... bearing

34 ..... Warm Gear 34a ... Warm Wheel

35 ..... link 36 .... link bar

39 ..... vertical axis 40 .... plate part

42 ..... square head 100 ... cooling tower

110 .... boiler 112 ... bunk coke

120 .... Circulating gas pipe 125 ... Collector

h ..... height P ..... Euro

Claims (4)

A device for collecting the powdered coke 112 in the circulating gas pipe 120 during the heat exchange process by circulating high temperature in the chamber to the boiler 110 through the circulating gas pipe 120 in the dry fire extinguishing device of the coke oven. In the circulating gas pipe 120 of the dry fire extinguishing system, a plurality of vortex preventing plates (5a) (5b) (5c) for preventing vortex formation in the flow of the circulating gas, and the flow resistance to the circulating gas And a plurality of control plates (15) for imparting and dropping the powdered coke (112) in the circulation gas to the collecting portion (125) to collect the powdered coke (112). The vortex preventing plates (5a) (5b) (5c) are arranged in sequence with an arch-shaped flow path (p) inside the circulation gas pipe (120), and the first one It is fixed to the inner wall of both ends of the point parallel to the upper end of the coke collecting unit 125, a plurality of another vortex prevention plate (5b) (5c) at a point higher than the initial vortex prevention plate (5a) Fixed to the inner wall of 120, the first vortex breaker 5a and the vortex breaker 5b, 5c on the rear side form a difference in height, and the coke collecting device of the dry fire extinguishing facility, characterized in that the height difference. . 2. The adjusting plate 15 is fixed to the upper side of each of the vortex preventing plates 5a, 5b, 5c so that the lower fixing portion 22 is rotatable, and on the outside of the vertical axis 39. It has a plate portion 40 made of a flat plate structure that is fixed, the upper end of the vertical axis 39 extends to the upper outer side of the circulation gas pipe 120 to firmly fix the link portion 35, while the vertical axis 39 The worm wheel 34a is vertically inserted and fixed under the upper link portion 35 of one of the vertical shafts, and the worm gear 34 has a structure symmetric with the height at which the worm wheel 34a on the vertical axis 39 is located. Is positioned horizontally, the worm gear (34a) is connected to the rotary shaft of the conversion control motor (3), the coke collection device for dry fire extinguishing equipment. The method of claim 3, wherein the link portion 35 is connected to each other as a link bar 36 between the other link portion 35 extending from the other side from the upper portion of the circulation gas pipe 120 Bunch coke collection device for dry fire extinguishing equipment.