KR101495438B1 - Apparatus for preventing hinderance of dust in cokes quenching facilities - Google Patents

Abstract

A device for preventing dust clogging of a coke dry fire extinguishing system is disclosed which prevents the clogging phenomenon from occurring by increasing the moving area of the dust when clogging due to dust is generated in the discharge pipe.
To this end, a channel-variable orifice unit for selectively increasing the flow passage area through which the dust moves in the lower portion of the discharge pipe connected to the hopper is installed to prevent clogging during movement of the dust

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus for preventing dust clogging in a coke dry fire extinguishing apparatus,

 The present invention relates to an apparatus for preventing dust clogging in a coke dry type fire extinguishing system, and more particularly, to an apparatus for preventing dust clogging in a coke dry type fire extinguishing system, And more particularly, to an apparatus for preventing clogging of a coke dry fire extinguishing apparatus which provides ease of repair when dust is clogged by improving a part of a discharge pipe through which the dust moves.

Generally, the CDQ (Coke Dry Quenching) facility refers to a facility used for cooling and digesting red coke produced in a coke oven by circulating gas.

The glow coke is extinguished through the upper part of the chamber and the digested coke A is discharged through a discharge device installed in the lower part of the chamber and transferred using a transfer conveyor or the like.

That is, as shown in FIG. 1, a rotary valve (RSV) 20 located at a lower portion of the chamber is cut out and transferred to the belt conveyor.

In the CDQ process, CDQ dust is generated during the dry digestion of the hot cryogenic coke extruded in the coke oven. In the CDQ process, when the inert feed gas stream and the glow coke are conveyed as described above, The fine coke particles generated by breaking are scattered and are mainly collected by the dust collector.

This CDQ dust has the same composition as the coke lump, but it can not be used as a blast furnace coke because it is fine, and because it is used as low-cost fuel or as waste, It is also very important for stable operation of the process.

In addition to the dust collector, as shown in FIG. 2, a cut-off dust discharge pipe 30 is provided in the lower portion of the chamber.

As shown in the figure, the dust ejection portion is largely composed of a hopper 40, a valve 50 connected to the lower end of the hopper, and an orifice piping 60.

As shown in the enlarged drawing, an orifice 70 having a passage area gradually decreasing downward is built in the inside of the pipe.

In order to smooth the movement of the dust generated in the coke dry fire extinguishing system, the orifice 70 installed as described above is mounted. However, as a disadvantage of the orifice 70, the cross-sectional area gradually decreases and the dust is clogged in the orifice 70.

As shown in the drawing, when a dust clogging phenomenon occurs in the orifice, a plurality of bolts 80 are fixedly coupled to a connection portion of the pipe, so that the fixing bolt 80 is released, The dust adhering to the orifices 70 was removed.

Therefore, not only the working time is delayed but also the possibility that a safety accident occurs during the removal of the foreign substance inside the orifice 70 is high.

Accordingly, it is an object of the present invention to improve a cut-out discharge piping through which dust is moved to selectively increase the flow area through which the dust flows when the piping is clogged by dust, thereby preventing clogging of pipes due to dust, The pipeline itself, which is a moving path, is improved to be detachable, thereby providing the operator with ease in removing the dust.

As a related invention, there has been proposed a coke dry type fire extinguishing system, which is disclosed in Korean Patent Laid-open Publication No. 10-2013-0032054 (published on April 03, 2013), Korean Patent Registration No. 10-0800546 (registered on Jan. 28, 2008) A plurality of CDQ-related inventions including a "CDQ dust-collecting apparatus", which is disclosed in Korean Patent Laid-Open Publication No. 10-2013-0068884 (published on June 26, 2016) The technical idea of preventing clogging of the pipe due to dust by improving the structure of the pipe itself by recognizing the problem of the orifice formed in the piping installed on the side of the RSV to which the coke is blown is installed.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as adhering to the prior art already known to those skilled in the art.

Korean Unexamined Patent Application Publication No. 10-2013-0032054 (published on April 03, 2013) Korean Registered Patent No. 10-0800546 (registered on January 28, 2008) Korean Patent Publication No. 10-2013-0068884 (published on June 26, 2013)

In order to solve the above-mentioned problems, the present invention has been made to solve the above-mentioned problems in the following points: (1) a method of manufacturing a dust pipe, comprising: (1) selectively replacing the flow area of a pipe through which dust travels with a cylindrical flow pipe having a cross sectional area larger than that of a conventional orifice, (2) the structure of the pipeline through which the dust moves can be replaced by a separate type from the existing one, thereby providing ease of repair of the clogging of the dust, and (3) And it is an object of the present invention to provide a device for shortening the time required for repairing the coke and dust, and facilitating the collection of coke and dust due to the improvement of facilities.

A device for preventing dust clogging of a coke dry fire extinguishing system is disclosed which prevents the clogging phenomenon from occurring by increasing the moving area of the dust when clogging due to dust is generated in the discharge pipe.

To this end, a flow path variable orifice unit for selectively increasing the flow path area through which the dust moves in the lower part of the discharge pipe connected to the hopper is installed, thereby preventing clogging during movement of the dust.

A first discharge pipe communicates with the lower end of the discharge pipe via a corrugated pipe,

And a sliding driving means for providing a driving force to move the flow path variable orifice unit located under the first discharge pipe in the forward and backward directions.

The flow path-variable orifice unit includes:

And an orifice passage tube having a passage area reduced in a downward direction and a moving block having a cylindrical flow passage having a larger area than the inlet of the orifice passage and extending in a downward direction, .

A vertical bolt vertically penetrating through the body and a connecting member contacting the center of the upper and lower surfaces of the vertical bolt via bearings are formed on an outer circumferential surface of the first discharge pipe, And an upper surface of the base,

And a first gear to be meshed with the vertical bolt is installed horizontally on the outer circumferential surface of the body, and the vertical bolt coupled with the first gear is rotated so that the vertical bolt is engaged with the first gear And a second gear connected to a lever for applying a rotational force to the one end thereof is installed on one side of the body.

A second discharge pipe through which the dust can move is provided in the lower portion of the flow path variable orifice unit,

Wherein the sliding driving means comprises:

A guide pipe connected to both sides of the outer circumference of the second discharge pipe and having a predetermined length formed therein, a slider capable of moving back and forth along the slot, and an upper end of a vertical lever connected to the slider are coupled to both sides of the outer periphery of the body And when the slider moves along the slot, the flow path-variable orifice unit can be moved back and forth in association with the slider.

A sensor unit for measuring a flow rate of air is installed on one side of the first discharge pipe,

And a control unit receiving a measured value of the sensor unit and transmitting an operation signal to a hydraulic cylinder installed at one side of the moving block such that the cylindrical flow path pipe is positioned below the first discharge pipe when an air flow rate signal below a reference value is transmitted .

The inlet and outlet of the orifice channel tube and the cylindrical channel tube are each formed with a stepped tongue insertion groove inwardly along the periphery thereof so as to be fitted into the insertion groove, And a fitting groove protruded along the circumference thereof is formed.

According to the apparatus for preventing dust clogging of the coke dry type fire extinguishing system of the present invention having the above-described configuration, the following remarkable effects are realized.

First, when the clogging phenomenon occurs in the piping due to dust, the flow path variable orifice unit that can increase the dust flow path area is moved to increase the flow path area of the dust, thereby smoothly moving the dust, There is an advantage not to.

Second, there is an advantage that it is possible to easily separate piped plugs that are clogged by dusts, thereby reducing the time for the operator to remove the dusts and providing ease of removal thereof.

Thirdly, when the clogging phenomenon of the dust occurs, the flow path area is rapidly increased, so that no facility breakage problem due to the clogging of the dust is caused, and the dust collecting which is useful in other technical fields is smoothly carried out, And so on.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a conventional pipe in which dust is moved and an RSV. FIG.
2 is a cutaway dust piping disposed at an actual work site.
Fig. 3 is an overall configuration diagram of the present invention; Fig.
4 is a perspective view of a flow path variable orifice flow path tube;
Fig. 5 is a view showing a structure in which a first discharge pipe is vertically movable, a vertical bolt, a first gear and a second gear are combined.
Fig. 6 is an overall configuration diagram including a sensor unit, a control unit, and a hydraulic cylinder; Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a device for preventing dust clogging of a coke dry fire extinguishing system according to the present invention will be described with reference to the accompanying drawings.

As shown in the drawing, the present invention is characterized in that the flow path-variable orifice unit 100 for selectively increasing the passage area of the discharge pipe through which dust is moved is installed under the discharge pipe 10 connected to the hopper 40, Thereby increasing the flow path area through which the dust is moved.

The variable-flow-type orifice unit 100 is not fixed to a part of the piping on which the dust moves, but is mounted slidably and selectively in the lower part of the discharge pipe 10 in the forward and backward directions, When the clogging phenomenon occurs, the cylindrical flow pipe 120 formed in the flow path variable orifice unit 100 is connected to the ash discharge pipe 200 to prevent the dust from being clogged through the flow path.

On the other hand, the hopper 40 is a place where the dust is temporarily stored, and a discharge pipe 10 is connected to the lower end of the hopper 40. The dust is moved downward through the discharge pipe 10, 90).

The first discharge pipe 200 communicates with the lower end of the discharge pipe 10 through a corrugated pipe 290.

This corrugated pipe 290 can be expanded or contracted in the vertical direction by the construction and operation of the vertical bolt 220, the first gear 260 and the second gear 280, which will be described later, Due to such a structure, even if the dust is clogged during the movement along the pipe, the first discharge pipe 200 is quickly lifted up and the channel-variable orifice unit 100 is slid on the lower portion thereof to position the cylindrical flow pipe 120 Thereby preventing clogging of the piping due to abnormal dust.

The sliding drive means 300 is provided with a sliding drive means 300 capable of moving the flow path variable orifice unit 100 in the forward and backward directions and in a state in which the first discharge pipe 200 is lifted up, The cylindrical flow pipe 120 provided in the orifice unit 100 is positioned below the first discharge pipe 200.

As shown in FIG. 4, the flow path variable orifice unit 100 includes an orifice flow pipe 110 and a moving block 130 having a cylindrical flow pipe 120 therein.

The entire shape of the moving block 130 may be a rectangular parallelepiped, but the present invention is not limited thereto. The orifice passage 110 and the cylindrical passage 120 may be formed in the movable block 130.

The orifice flow pipe 110 has the same orifice shape as the conventional orifice shape in which the flow passage area decreases downward and a flow passage having a larger area than the inlet of the orifice flow pipe 110 is formed at one side of the orifice flow pipe 110 And the cylindrical flow pipe 120 extending in the direction of the arrow A are arranged side by side.

That is, when the dust is steadily flowing, the orifice flow pipe 110 formed in the moving block 130 is positioned below the first discharge pipe 200, and the dust moves through the orifice flow pipe 110.

However, the orifice flow pipe 110 is likely to cause clogging of the dust due to the shape in which the flow path area gradually decreases in the downward direction. Furthermore, due to the moisture contained in the dust, So that dust clogging often occurs due to dust.

At this time, when the pipe clogging due to dust occurs, the cylindrical flow pipe 120 located at one side of the orifice flow pipe 110 is replaced with a smooth flow of the dust, thereby preventing the pipe from being clogged due to dust .

The cylindrical flow path tube 120 is characterized in that a flow path larger than the inlet area of the orifice flow path tube 110 is formed so as to extend vertically and uniformly.

On the other hand, in order to allow the variable-flow-type orifice unit 100 to slide and be positioned below the first discharge pipe 200, it is necessary to move the first discharge pipe 200 upward.

5, the present invention includes a body 210, a vertical bolt 220, a bearing 230, a connecting member 240, a first gear 260, a lever 270, And a gear 280.

A base 250 is formed on one side of the outer circumferential surface of the first discharge pipe 200 at a predetermined distance and a connecting member 240 is provided on the upper surface of the base 250 to extend in the direction of the center of the vertical bolt 220.

A vertical bolt 220 is in contact with an outer circumferential surface of an end of the connecting member 240 via a plurality of bearings 230. When the vertical bolt 220 contacts and rotates with the bearing 230, The member 240 is also moved upward and the first discharge tube 200 is also moved upward through the base 250 connected to the connecting member 240.

On the other hand, when the direction of rotation of the vertical bolt 220 is reversed, the first discharge pipe 200 moves downward.

A first gear 260 coupled to the vertical bolt 220 is formed on an outer circumferential surface of the body 210 so that the vertical bolt 220 is rotated in an upward and downward direction.

Of course, a thread is formed at a portion where the first gear 260 and the body 210 are in contact with the first gear 260 so that the first gear 260 can be rotated.

The first gear 260 rotates and the inner circumferential surface of the first gear 260 is threaded to be engaged with the thread formed on the outer circumferential surface of the vertical bolt 220. The first gear 260 rotates And the vertical bolt 220 moves upward or downward according to the rotational direction of the first gear 260. [

Unlike the conventional "turnbuckles", the present invention is characterized in that the vertical bolt 220 passes through the inside of the body 210 integrally without being separated upwardly and downwardly. As a modification of the "turnbuckle" The vertical bolt 220 of the present invention is formed such that the vertical direction of the vertical bolt 220 itself is upward or downward due to a constant thread direction on the outer circumferential surface of the vertical bolt 220, So that it can move downward.

The second gear 280 is formed on the outer side of the body 210 so that the first gear 260 can be rotated. The second gear 280 is threaded to the outer periphery of the first gear 260.

The second gear 280 is coupled to the outer circumferential surface of the body 210 through a fixing member 281. A lever 270 capable of rotating the second gear 280 is provided on the second gear 280 Respectively.

When the lever 270 is rotated, the second gear 280 and the first gear 260 rotate and the vertical bolt 220 moves upward or downward by the rotation of the first gear 260, The first discharge pipe 200 is moved upward or downward through the base 240 and the base 250.

3, a second discharge pipe 400 through which the dust moved along the inside of the flow path variable orifice unit 100 can move is provided.

In the present invention, the sliding driving means 300 is provided so that the variable-flow-type orifice unit 100 can move left and right from the lower part of the first discharge pipe 200.

The sliding driving means 300 mainly comprises a guide pipe 310, a slider 320 and a vertical lever 330.

The guide pipe 310 is located at a predetermined height on the outer circumferential surface of the first discharge pipe 200, and a slot having a predetermined length is formed therein.

A slider 320, which can move left and right along the slot, is located inside the slot, and a vertical lever 330, which is vertically and vertically extended to a predetermined length, is connected to one side of the slider.

The upper end of the vertical lever 330 is coupled to both sides of the moving block 130. When the slider 320 moves along the slot, the vertical lever 330 moves in conjunction with the movement of the slider 320, The orifice unit 100 also moves in the forward and backward directions.

When the orifice flow pipe 110 provided in the flow path variable orifice unit 100 is located below the first discharge pipe 200 and clogging due to dust occurs in the first discharge pipe 200, When the variable orifice unit 100 is pushed from the right to the left in the drawing, the cylindrical flow pipe 120 is positioned below the first discharge pipe 200, and the dust is moved to a wider flow passage area than before, The clogging phenomenon due to the contact is prevented.

In addition, instead of cleaning the clogged piping by dismantling a plurality of fixing bolts when the clogging phenomenon due to dust is generated as in the conventional case, the orifice flow pipe 110, which is clogged with the operating structure sliding in the case of the present invention, And is located outside the discharge pipe 200, so that the operator can also easily clean the dust in the orifice pipe 110.

On the other hand, in the above-described configuration, it is inconvenient for the operator to apply a constant force to the flow-variable-type orifice unit 100 to move the flow-variable orifice unit 100 forward and backward.

As shown in FIG. 6, the present invention further includes a sensor unit 500, a hydraulic cylinder 600, and a control unit 700 to detect dust clogging and to prevent clogging due to dust The moving block 130 can be automatically slid in order to prevent the moving block 130 from slipping.

First, as shown in the figure, the sensor unit 500 is installed at one side of the first discharge pipe 200 and senses the flow rate of air moving along the first discharge pipe 200.

When dust moves smoothly along the inside of the first discharge pipe 200, the flow rate of the air moving with the dust will be maintained at a certain level, but the flow rate of the air will be significantly lowered when dust clogging occurs.

If the flow rate of the air measured by the sensor unit 500 is determined to be lower than the reference value, the movement block 130 is moved to move The cylindrical flow pipe 120 provided in the block 130 is positioned below the first discharge pipe 200.

In order to achieve this, a control unit 700 receives the measured value through the sensor unit 500, and the control unit 700 compares the reference value with the measured value by the sensor unit 500 in real time.

The control unit 700 sends an operation signal to the hydraulic cylinder 600 provided at one side of the moving block 130 and the operation block 610 provided inside the hydraulic cylinder 600 moves the moving block 130 Is moved from right to left in the attached drawing and the cylindrical flow pipe 120 is positioned below the first discharge pipe 200 to increase the moving area of the dust so that clogging due to dust no longer occurs.

4, the specific shape of the orifice flow pipe 110, the cylindrical flow pipe 120, the first discharge pipe 200, and the second discharge pipe 400 will be described.

The inlet and outlet of the orifice flow pipe 110 and the cylindrical flow pipe 120 are respectively formed with stepped insertion grooves 111 and 121 inwardly along the periphery of the orifice flow pipe 110 and the cylindrical flow pipe 120. In order to fit into the insertion holes 111 and 121, Fitting grooves 211 and 411 protruding along the circumference of the inlet and outlet of the second discharge pipe 200 and the second discharge pipe 400, respectively.

The first discharge pipe 200, the flow path variable orifice unit 100, and the second discharge pipe 400 are connected by the insertion grooves 111 and 121 and the fitting grooves 211 and 411, and the dust moves along the flow path formed therein .

In addition, a conveyor belt 90 for receiving and moving dust is provided in the lower portion of the second discharge pipe 400 to transfer the dust to a required place.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10: discharge pipe 100: flow-variable orifice unit
110: Orifice flow tube 111, 121: Insert groove
120: Cylindrical flow pipe 130: Moving block
200: Material 1 discharge pipe 210: Body
211, 411: Fitting groove 220: Vertical bolt
230: bearing 240: connecting member
250: Base 260: First gear
270: lever 280: second gear
290: Corrugated pipe 300: Sliding drive means
310 guide tube 320 slider
330: vertical lever 400: second outlet pipe
500: Sensor part 600: Hydraulic cylinder
700:

Claims (7)

A first discharge pipe communicating with the lower end of the discharge pipe connected to the hopper and having the dust moved and vertically movable;
An orifice flow tube in which the area of the flow path through which the dust moves decreases in the downward direction and a cylindrical flow pipe in which a flow path having a larger area than the inlet of the orifice flow path tube is formed in a downward direction, A flow path variable orifice unit provided below the first discharge pipe;
A second discharge pipe provided at a lower portion of the flow path-variable orifice unit to move the dust;
The orifice passage may be provided on the outer circumferential surface of the second discharge pipe to move the flow path-variable orifice unit in the front-rear direction to provide a driving force to selectively connect either the orifice passage pipe or the cylindrical passage pipe to the first discharge pipe and the second discharge pipe An apparatus for preventing clogging of a coke dry fire extinguishing system, comprising a sliding driving means.
delete delete The method according to claim 1,
A vertical bolt vertically penetrating through the body and a connecting member contacting the center of the upper and lower surfaces of the vertical bolt via bearings are formed on an outer circumferential surface of the first discharge pipe, And an upper surface of the base,
And a first gear to be meshed with the vertical bolt is installed horizontally on the outer circumferential surface of the body, and the vertical bolt coupled with the first gear is rotated so that the vertical bolt is engaged with the first gear And a second gear connected to a lever capable of applying a rotational force to the one end thereof is installed on one side of the body.
The method of claim 4,
Wherein the sliding driving means comprises:
A guide pipe connected to both sides of the outer circumference of the second discharge pipe and having a predetermined length formed therein, a slider capable of moving back and forth along the slot, and an upper end of a vertical lever connected to the slider are coupled to both sides of the outer periphery of the body Wherein the flow path-variable orifice unit can be moved back and forth in association with movement of the slider along the slot.
The method of claim 4,
A sensor unit for measuring a flow rate of air is installed on one side of the first discharge pipe,
And a control unit receiving a measured value of the sensor unit and transmitting an operation signal to a hydraulic cylinder installed at one side of the moving block such that the cylindrical flow path pipe is positioned below the first discharge pipe when an air flow rate signal below a reference value is transmitted Characterized in that the dust blocking device of the coke dry fire extinguishing system.
The method of claim 5,
The inlet and outlet of the orifice channel tube and the cylindrical channel tube are each formed with a stepped tongue insertion groove inwardly along the periphery thereof so as to be fitted into the insertion groove, Wherein a fitting groove protruding along the periphery is formed.

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