KR200220523Y1 - device for removing dust in stack of ECS - Google Patents

Abstract

The present invention collects the foreign matter accumulated in the bottom of the stack to the outside to collect it in the collection box and handles it at the start of the CS startup, thus reducing the dust emission concentration of the air discharged through the stack to prevent air pollution. In the dust collecting system for collecting dust generated during the operation of extruding the red coke from the carbonization chamber 10 from the carbonization chamber (10) to the fire truck loading box 23, in the dust collecting equipment to replace only the clean air through the stack (35), In the lower part of the stack 35 is provided with an inclined plate 51 for collecting the heavy foreign matter, one end of the inclined plate 51 and the inlet pipe 52, 53 is connected to collect the foreign matter A collecting box 57 is provided, and the collecting box 57 is provided with a level switch 65 for detecting an amount of collected foreign matter, and an upper portion of the collecting box 65 closed by a cover plate 58. The air passing through the filter member 62 is discharged on the lower surface, and the pipe member 68a having the electric valve 68 is provided, and below the collecting box 57, the discharging line 34 is applied with the suction pressure. It is provided with a foreign material removal device of the CS stack constituting the transfer pipe 67 is connected to the communication is discharged foreign matters.

Description

Device for removing dust in stack of ECS}

The present invention relates to a device for removing foreign matter from the CS stack installed in the coke oven facility, more specifically, to collect the foreign matter accumulated in the bottom of the stack from the bottom of the stack to the outside to collect the collection and to process during start-up The present invention relates to a debris removal device of a CS stack which can prevent air pollution by reducing dust emission concentration of air discharged through a stack.

In general, as shown in FIG. 1, the coke oven equipment is charged with carbon in the carbonization chamber (10), sealed and then dried for a certain period of time by coking with a high temperature and loaded into the fire truck loading box (23) by extruding and extinguish. It is sent to the post-blast furnace process and used as the main raw material.

In addition, the ECS (Emission Control System) is a carbonization chamber (10) to collect and process the dust generated during the operation of extruding the red coke from the carbonization chamber 10 to the fire truck loading (23) side. Pollution discharge prevention equipment installed on one side of the), this CS equipment is installed in the hood unit 21 and the fire truck (23) of the transfer facility 20 by the suction pressure of the main fan 31 is operated during the extrusion operation Dust generated will be collected.

That is, the dust collected is introduced into the fume duct 30 in communication with the hood portion 21 to be filtered by the filter of the bag chamber 32, and the clean air is passed through the bag chamber net 33 and the stack 35. It is discharged to the outside.

In addition, the dust filtered from the bag chamber 32 is stored in the bottom of the bag thread, and is transferred to the transfer silo 36 through the discharging line 34 during the bag seal cleaning operation so that dust is filtered out. It is stored in the silo 37 and discharged in a post process.

In addition, as shown in FIG. 2, the dust measuring device 43 is installed on the stack 35 of the CS equipment as described above to detect the dust emission concentration, and manage operation under environmental regulations. It was.

However, since the CS facilities are mostly made of steel structures, foreign matters (scales) are generated due to corrosion of the equipment, and these foreign matters collect dust and discharge only clean air to the outside through the stack 35. Cumulative phenomenon (A) is accumulated by the lower portion of the stack 35 is generated, the accumulated foreign matter is broken at the start of the C-S is scattered, and discharged to the upper dust meter 43 installed on the stack 35 There was a problem that the error data is generated while being detected in the lowering of the accuracy of the measurement data.

Therefore, the present invention has been devised in view of such a conventional problem, and its purpose is to collect and collect foreign substances accumulated in the lower part of the stack using a eddy phenomenon generated while the air flows through the lower part of the stack, and collect the collected foreign substances. The present invention aims to provide a debris removal device of the CS stack which can perform dust treatment during start-up to more precisely detect dust emission concentration on the stack.

Figure 1 is an operating state showing a typical dust collector CS

2 is a state in which foreign matter is accumulated in the stack installed in the conventional CS;

Figure 3 is an exploded perspective view showing a foreign material removal device of the CS stack according to the present invention,

Figure 4 is an installation state showing a debris removal device of the CS stack according to the present invention.

Explanation of symbols on the main parts of the drawings

10 .... carbonization chamber 23 .... fire truck loading

31 .... Main Fan 32 ..... White Thread

51 .... Inclined plate 52,53 ... Inlet pipe

54 .... flap 55 .... hinge pin

57 .... collection box 62 .... filter element

65 .... Level gauge 66 .... Pressure gauge

67 .... Feed pipe 68 .... Electric valve

As a technical configuration for achieving the above object, the present invention,

In the dust collecting facility which collects dust generated during the operation of extruding the hot coke from the carbonization chamber to the fire truck loading, and replaces only the clean air through the stack,

In the lower part of the stack is provided with an inclined plate for collecting the heavy foreign matter, and connected to one end of the inclined plate and the inlet pipe to collect the foreign matter is collected, the collection box is collected amount of foreign matter collected And a level switch for detecting the air, the upper surface of which is sealed by a cover plate, and the air passing through the filter member is discharged from the upper surface of the collecting box, and a pipe member having an electric valve is provided. The foreign matter removal device of the CS stack is characterized by comprising a transfer pipe in communication with the charging line to discharge the foreign matter.

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

Figure 3 is an exploded perspective view showing a foreign material removal device of the CS stack according to the present invention, Figure 4 is an installation state diagram showing a foreign material removal device of the CS stack according to the present invention, the device 100 of the present invention As shown in Figures 3 and 4, installed near the bottom of the stack 35, the air is finally discharged to remove the dust so that foreign matter caused by corrosion in the steel equipment is not discharged through the stack 35 As such, the apparatus 100 is composed of an inclined plate 51, a collecting box 57, a level gauge 65, a conveying pipe 67 and the like.

That is, the inclination is fixedly installed in the lower portion of the vertical stack 35, the eddy phenomenon (A) occurs when the air flow dust is filtered through the stack 35 by the start of the main fan 31 of the CS equipment The plate 51 is a disc member bent in a 'V' shape, and collects only foreign substances having a heavy specific gravity in the air volume passing through the stack 35 in which eddy phenomenon A occurs, and collects the collected foreign substances 57. It is fixedly installed to be inclined toward the collecting box 57 so as to be inclined to the side.

In addition, the arc-shaped protrusion 51a, which is one end of the inclined plate 51, is formed therein through an opening 57a formed on one side of the collecting box 57 through inflow pipes 52 and 53 connected by flanges. Is connected to the foreign matter collected in the inclined plate 51 can be collected through the inlet pipe 52, 53 into the collecting box 57.

Here, at the outlet end of one side inlet pipe 53 disposed inside the collecting box 57, the main fan 31 may enter upward by the amount of air introduced into the inlet pipes 52 and 53 when the main fan 31 is started. A flap 54 is hinged at one end via a hinge pin 55 and a release preventing ring 56 so that the flow path is opened and lowered downward by its own weight when the start is stopped.

In addition, the collecting box 57, the foreign matter is collected heavy gravity is mounted at a predetermined height from the bottom surface is equipped with a level switch 65 so as to detect the discharge timing of the foreign matter collected in the interior space, The opened upper part of the collecting box 57 is sealed by mounting the cover plate 58 and the louver gasket 59 as a plurality of bolt members 60 and nut members 61, and the inlet pipe 52 at the lower side thereof. The filter member 62 is installed to filter the dust contained in the air introduced together with the foreign matter through the 53.

In addition, the outer surface of the collecting box 57 corresponding to the cover plate 58 and the filter member 62 passes through the filter member 62 so as to discharge only clean air filtered out of the dust to the outside. An electric valve 68 is installed to communicate with the member 68a and open and close the flow path in the pipe member 68a.

In addition, the silo 36 is disposed on the lower outer surface of the collecting box 57 so that the foreign matter loaded in the collecting box 57 can be discharged to the transfer silo 36 side by the suction force of the activated exhaust blower 39. ) Is provided with a conveying pipe (67) in communication with the discharging line (34) connected to the), and the conveying pipe (67) appropriately measures the pressure gauge (66) for measuring the pressure in the pipe and the internal pressure in which the foreign matter is conveyed. The vent valve 69 is provided so that adjustment is possible.

The operation and effects of the present invention as described above will be described.

In order to collect a large amount of dust generated when extruding the red coke in the carbonization chamber 10 toward the fire truck loading box 23, the main fan 31 of the CS facility is started, and the dust is discharged into the fume duct 30. And, it is filtered while passing through the bag chamber 32, the dust is filtered air is discharged to the outside through the stack (35).

At this time, when the air flow flowing into the lower portion of the stack 35 to form the air flow discharged to the upper portion passes through the lower portion of the stack 35, eddy phenomenon A occurs in the exhaust structure, so that corrosion occurs in the steel structure. The foreign matter such as the separated scale is not discharged to the upper side together with the air due to the specific gravity difference and falls on the inclined plate 51 installed inclined in the lower space inside the stack 35.

In addition, the foreign matter dropped on the inclined plate 51 flows into the arc-shaped outlet end 51a on the lower side inclined toward the collecting box 57 and is disposed at the opening 57a of the collecting box 57. Dropping to the inner space of the collecting box 57 through the (53), the air is removed through the filter member 62 is installed on the upper side of the tube member 68a of the electric valve 68 is opened It is discharged to outside through).

At this time, the flap 54 installed at the outlet end side of the one side inlet pipe 53 is hinged by the air flow path discharged through the inlet pipe 52, 53, the collecting pipe 57 and the pipe member 68a. When lifted upward with respect to the pin 55 and opened, the start of the main fan 31 of the CS facility is stopped and the inflow of air through the inflow pipes 52 and 53 is stopped. While lowering downward with respect to the hinge pin 55 by its own weight, the outlet end of the one inlet pipe 53 is sealed to prevent foreign matter from flowing backward through the inlet pipes 52 and 53.

On the other hand, when the foreign matter collected in the collecting box 57 is gradually increased and the collected foreign matter reaches the detection height of the level switch 65, the exhaust blower is operated during the facility operation of operating the CS equipment to collect the dust. Activate (39).

In this case, the suction force of the blower 39 which is operated is transmitted to the collecting box 57 through the discharging line 34 and the transfer pipe 67 connected thereto, and the suction force transmitted to the collecting box 57 is applied to the collecting force 57. External air flows into the trap 57 through the open tube member 68a by the electric valve 68 and the foreign matter in the trap 57 is sucked together with the transfer air 67 and the disc. It is fed into the transfer silo 36 through the charging line 67, filtered, and then collected in the dust silo 37 for discharge treatment.

At this time, the flap mounted on the one side inlet pipe 53 is closed when the outside air is introduced through the pipe member 68a to prevent foreign matter from flowing back into the stack 35 through the inlet pipes 52 and 53. When the foreign substance is discharged through the transfer pipe 67, the pressure gauge 66 measures the pressure inside the pipe to adjust the opening size of the vent valve 69 installed in the transfer pipe 67 to adjust the opening size of the inside of the transfer pipe 67. Adjust suction pressure properly.

When the transfer of foreign matter through the transfer pipe 67 is completed, the electric valve 68 installed in the pipe member 68a is closed to prevent external dust from entering the collection box.

According to the present invention having the configuration as described above, by collecting the foreign matter accumulated in the bottom of the stack of the CS equipment to prevent the air to be discharged to the outside through the stack, the dust concentration of the exhaust air discharged to the atmosphere through the stack dust Since the measuring device can accurately measure without errors, the dust collecting equipment is highly reliable, and the work of inspecting and repairing the bottom of the stack is unnecessary, and a substantial effect of reducing manpower and material costs is obtained.

While the subject innovation has been shown and described with respect to specific embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit or scope of the subject innovation as provided by the following claims. I would like to clarify that knowledge is easy to know.

Claims (3)

In the dust collecting facility which collects the dust produced at the time of extruding the red coke from the carbonization chamber 10 to the fire truck loading box 23, and replaces only the clean air through the stack 35, In the lower part of the stack 35 is provided with an inclined plate 51 for collecting the heavy foreign matter, one end of the inclined plate 51 and the inlet pipe 52, 53 is connected to collect the foreign matter A collecting box 57 is provided, and the collecting box 57 is provided with a level switch 65 for detecting the amount of collected foreign matter, and an upper outer surface of the collecting box 65 sealed by a cover plate 58. The air passing through the filter member 62 is discharged, the pipe member 68a having the electric valve 68 is provided, and the collecting box 57 communicates with the discharging line 34 under the suction pressure. The foreign material removal device of the CS stack, characterized in that comprises a transfer pipe 67 is connected to discharge the foreign matter. The method of claim 1, The outlet end of the one side inlet pipe 53 is lifted upward by the amount of air flowed into the inlet pipes 52 and 53 toward the inlet pipe 52 and 53 side when the main fan 31 is started, and is opened downward by its own weight when the start stops. The debris removal device of the CS stack, characterized in that the flap 54 is hinged by one end hinged through the hinge pin 55 and the separation prevention ring 56 so as to be closed by the lowering. The method of claim 1, The transfer pipe 67 is provided with a pressure gauge 66 for measuring the pressure inside the pipe and a vent valve 69 so as to appropriately adjust the pressure inside the pipe in which the foreign matter is transferred. Removal device.