JP2000230176A - Cleaner for sweeping periphery of temperature measuring duct on coke oven - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject cleaner to be mounted on a larry car separately from an on-oven cleaner, enabling deposits including coal powder, surplus sealants and dust stuck around a temperature measuring duct on a coke oven to be surely blown off to a sweepable zone by the on-oven cleaner. SOLUTION: This cleaner is such one as to be mounted on a larry car traveling on a rail on a coke oven and intended to sweep the periphery of a temperature measuring duct installation on the coke oven, and equipped with a 1st means 4 provided with a blow-off nozzle 2 and having the function to vertically moving blows-off pipings 3 with horizontal posture and a 2nd means 5 having the function to swing the blow-off pipings 3 left and right. Thereby, the cleaner works in such a way as to blow air from the blow-off nozzle 2 against the periphery of the temperature measuring duct installation while vertically moving and swinging the blow-off pipings 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a coke oven furnace
The present invention relates to a cleaner for cleaning around a temperature measuring duct on a coke oven, which can reliably remove coal powder, surplus sealing material, dust and the like deposited around the temperature measuring duct (D) of (F).

[0002]

[Prior art] <Furnace cleaner, hard-to-clean place> Dirt such as coal powder and surplus sealing material deposited on the coke oven (F) is mounted on a coke oven loaded car (C). It is removed by an on-furnace cleaner, which is called an on-furnace cleaner, to beautify the on-furnace and prevent dust scattering.

However, at present, there are some places where it is difficult to clean with a furnace cleaner. Examples of such locations are around the temperature measuring duct (D) described below, alongside the rail described later, and around the riser described later.

<Cleaning around temperature measuring duct> Temperature measuring duct (D)
As shown in FIG. 4 to be described later and as shown in a perspective view in FIG. 5, the temperature in the combustion chamber installed in the coke oven furnace (F) at a substantially central portion in the direction of the furnace group is measured. This is a duct with legs to protect the thermocouple to be measured from being stepped on by a worker on the furnace.However, the duct (D) may fall onto the furnace near the leg or inside the leg (F). Coal powder,
Excessive sealing material, dust, etc. are deposited in large quantities. Since the sediment around the temperature measuring duct (D) is difficult to clean with a conventional on-furnace cleaner, it is a fact that on-furnace workers regularly clean the sediment.

<Cleaning of the rail side> Although it does not require a cleaner for cleaning around the temperature measuring duct (D), the conventional furnace cleaner also cleans the side of the rail (R) of the coal-loaded car (C). In order to have a function, there has been proposed an apparatus in which an on-furnace cleaner is provided with a compressed air injection mechanism as shown below.

[0006] (1) Japanese Utility Model Publication No. Sho 60-26108 (Japanese Utility Model Publication No. Sho 56-126466) discloses a bogie mounted on a coal-carrying car and traversing at right angles to the running direction of the coal-carrying car.
A coke oven cleaning device (that is, a conventional on-furnace cleaner) that has a suction nozzle that is supported so as to be in close proximity to the coke oven surface and that sucks dust on the coke oven surface from the suction nozzle. A compressed air injection nozzle is fixed to the lower side of the wheel supporting horizontal frame, and during cleaning, when the suction nozzle approaches the rail of the coal-equipped car, this is detected by a limit switch provided on the base of the coal-equipped car. Further, there is shown a coke oven cleaning apparatus in which compressed air is injected from the compressed air injection nozzle toward the base of the coal-equipped wheel for a certain period of time.

(2) Japanese Utility Model Application Publication No. Sho 56-146745 discloses that a rail orthogonal to a rail of a coal-charging truck is disposed on a coke-charging coal-charging truck, and a truck is movably mounted thereon. And a blower, and the outside air is taken into the suction side of the blower in a furnace cleaner (that is, a conventional furnace cleaner) having a dust remover, a blower, a suction pipe, and a suction nozzle connected via a flexible pipe. Valves and exhaust valves are provided on the exhaust side, and compressed air ejection nozzles are provided on both sides of the suction nozzle and connected to the exhaust side of the exhaust fan via a bifurcated ejection pipe and a flexible pipe. A cleaner on a coke oven in which an intake valve is opened and an exhaust valve is closed so that air is ejected from a compressed air ejection nozzle is shown.

(3) Japanese Utility Model Application Laid-Open No. 59-76541 discloses that a rail orthogonal to a rail of a coal-carrying car is disposed on a coke-burning coal-carrying car, and the truck is movably mounted thereon, and dust is removed on the truck. In a coke oven cleaning device (that is, a conventional on-furnace cleaner) in which a dust collector and a blower are mounted and a suction nozzle is provided at a tip of a suction pipe connected to the dust remover and the blower, a coke oven or On-furnace cleaning of a coke oven in which an air pipe is connected to an air pipe installed in a coal-equipped vehicle via an on-off valve, and a blow nozzle disposed near the suction nozzle is provided at a tip of the air pipe. The device is shown.

<Cleaning between riser pipes> A cleaner for cleaning around the temperature measuring duct (D) is not required. However, a cleaner devised to clean between riser pipes of a coke oven is described below. Some suggestions have been made.

(4) Japanese Utility Model Laid-Open Publication No. 61-16351 discloses that a suction nozzle connected to a dust remover and an exhaust fan has both ends of a riser tube side suction nozzle in a furnace cleaner in which the suction nozzle is freely movable at right angles to a rail of a coal-equipped vehicle. 2 shows a cleaner on a coke oven furnace in which a suction pipe is projected so as to be tiltable at a center-to-center distance of a carbonization chamber, and a suction nozzle for an end is provided at a tip end.

(5) Japanese Unexamined Utility Model Publication No. 62-70151 discloses a link mechanism for moving a suction hood up and down on a furnace between risers in conjunction with raising and lowering of a raising / lowering lever of a coal hood of a coke oven equipped with coal. Is provided on a coal-equipped truck, and the above-described suction hood is connected to a dust remover mounted on the coal-equipped truck via a flexible tube.

(6) JP-A-3-59090 discloses that
Furnace top cleaning that is operated by being loaded or pulled on a coke oven charging car and suctioning and removing the coal dust remaining on the furnace top surface on the side including between the charging inlets of the carbonization chamber by operating the suction nozzle In the apparatus, an air blowing nozzle which is operated in conjunction with the suction nozzle and blows out compressed air at a predetermined pressure is provided, and the air blowing nozzle is used to leave a residual air at a peripheral portion of a riser pipe protruding near an end of the furnace top surface. An apparatus for cleaning the top of a coke oven, which is capable of blowing the coal dust to the side including the space between the charging ports, is shown.

[0013]

When the area around the temperature measuring duct (D) on the furnace (F) is to be cleaned by the conventional furnace cleaner, the temperature of the furnace cleaner is measured from a fixed position by using a driving device. Move around the duct (D) and place it on the furnace for an arbitrary time (F)
The suction must be returned to the home position after the suction is brought into close contact with the suction port.However, since the temperature measurement duct (D) protrudes above the furnace (F) and becomes an obstacle, the Temperature measuring duct
(D) It is not possible to do it sufficiently around the furnace, the furnace cleaner has to clean other areas, so the suction time is limited, and only the closed suction is inside the leg of the temperature measurement duct (D). There are problems such as the inability to remove deposits.

The above (1) to (3) or (4) to
The on-furnace cleaner modified as described in (6) cannot be used for the purpose of cleaning around the temperature measuring duct (D) because the parts to be cleaned are originally different.

In this background, the present invention is directed to a cleaner mounted on a coal-carrying vehicle (C) in addition to an on-furnace cleaner, wherein the cleaner is deposited and fixed around a temperature measuring duct (D) on the furnace (F). It is an object of the present invention to provide a cleaner for cleaning around a temperature measuring duct on a coke oven, which can surely blow off accumulated coal powder, surplus sealing material, dust and other deposits to an area that can be cleaned by an on-furnace cleaner. Things.

[0016]

SUMMARY OF THE INVENTION A cleaner for cleaning around a temperature measuring duct on a coke oven according to the present invention is provided on a coke oven.
(F) A cleaner installed on a coal-carrying truck (C) traveling on the rail (R) for cleaning around the installation part of the temperature measuring duct (D) on the furnace (F). Cleaner around the duct
(1) a first means (4) having a blowing nozzle (2) and vertically moving a blowing pipe (3) in a horizontal posture
And a second means (5) for swinging the blowoff pipe (3) in the left-right direction (furnace group direction), so that the blowoff nozzle moves up and down and swings the blowoff pipe (3).
It is characterized in that air can be blown around the installation part of the temperature measuring duct (D) from (2).

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.

[0018] As is well known, a coal-charging rail (R) is laid on the coke oven (F), and the coal-charging rail is laid on the rail (R).
(C) is running. The charcoal truck (C) is a work vehicle that receives and transports coal from the coal tank and charges coal into the coking chamber from the chute port (E). A rail for the on-furnace cleaner is installed in this coal-loaded car (C) in a direction orthogonal to the above-described coal-loaded car rail (R), and the on-furnace cleaner runs on the rail. The on-furnace cleaner has a structure in which a suction nozzle extends downward from a cart provided with a dust remover and an exhaust fan. At the time of coal loading, the furnace cleaner is programmed to move from the fixed position on the coal carrier (C) and return to the fixed position again, and during that movement, the suction nozzle provided below the truck of the furnace cleaner. Is lowered, and the suction port comes into close contact with the furnace (F), and the furnace is cleaned.

A cleaner for cleaning around a temperature measuring duct of the present invention.
(1) is to mount on a coal-carrying car (C) as a separate device at a position different from the above-mentioned conventional on-furnace cleaner. FIG.
Coal truck traveling on rail (R) on coke oven (F) (C)
FIG. 4 is an explanatory view schematically showing an example of a positional relationship of a cleaning cleaner (1) around a temperature measuring duct with respect to FIG. FIG. 4 also shows the position of the temperature measuring duct (D).

The above-mentioned furnace cleaner is a coal-charging car.
The vehicle travels in the left-right direction in FIG. 4 with one corner of (C) (upper left in FIG. 4) as a fixed position. (M) is the driver's cab of the coal-loaded car (C),
Coal trucks (C) are usually driven unmanned. (H) is a charcoal truck
The hopper mounted on (C) and the chute (E) are the chute openings provided on the coal carrier (C). (R) is the rail of coal-carrying car (C).

The cleaner (1) for cleaning around the temperature measuring duct according to the present invention is mounted on a coal carrier (C) running on a rail (R) on a coke oven furnace (F). The mounting position on the coal-carrying car (C) is a portion along the temperature measuring duct (D) as shown in FIG.

As shown in FIGS. 1 to 3, which will be described later, the cleaner (1) for cleaning around the temperature measuring duct moves up and down a blowing pipe (3) having a blowing nozzle (2) and having a horizontal posture in a vertical direction. There is provided a first means (4) for causing the air to flow, and a second means (5) for swinging the blowing pipe (3) in the left-right direction (toward the furnace group).

It is practical for the first means (4) to be a hydraulic cylinder for lifting (a hydraulic, hydraulic or pneumatic cylinder, especially a pneumatic cylinder). Second means (5)
Is preferably constituted by a hydraulic cylinder (hydraulic, hydraulic or pneumatic cylinder, particularly a pneumatic cylinder) for oscillating left and right, and related members for transmitting the movement to the blowoff pipe (3). However, the first means (4) and the second means (5)
At least one of them may use a motor, a cam, a wire moving mechanism, a solenoid, or the like as long as it can move up and down or swing various members similarly to the fluid pressure cylinder.

The blowout pipe (3) is made of a pipe of an appropriate length, and a predetermined number of blowout nozzles (2) are installed below the pipe. Clean the cleaner around the temperature measuring duct (1)
(R) is installed at a specific position on a coal-carrying truck (C) running on the (R), and the blow-out pipe (3) is installed horizontally so that its length direction is in the furnace group direction (parallel to the rail (R)). .

A cleaner for cleaning around a temperature measuring duct according to the present invention.
A more specific configuration of (1) is to use a hydraulic cylinder for raising and lowering (using the same reference numeral of (4)) as the first means (4),
As a second means (5), a fluid pressure cylinder for left and right swing (same
Taking the case where (5) is used) and related members as an example, it is as follows.

First, a hydraulic cylinder (4) for raising and lowering is suspended from a machine frame of a coal-equipped truck (C) via an appropriate jig or a connecting member. Then, a blow-out pipe (3) and a hydraulic cylinder (5) for swinging left and right are supported by the hydraulic cylinder (4) for lifting and lowering. In this case, the blow-off pipe (3) with the hydraulic cylinder (4) for raising and lowering and the hydraulic cylinder for
In order to make the lifting and lowering of (5) smooth, for example, a frame (6) is provided at the lower end of the hydraulic cylinder (4) for raising and lowering, and guide frames are provided on both sides of the frame (6).
(6a), (6a) is fixed and its guide frame (6a), (6a)
However, it is possible to smoothly move up and down along the guide rails (7), (7) installed vertically in the machine frame of the coal truck (C).
Then, for example, a hydraulic cylinder (5) for swinging left and right is mounted slightly below the front side of the frame (6), and the movement of the piston of the hydraulic cylinder (5) is controlled via a link (8).
It is transmitted to the outlet pipe (3) arranged in a horizontal position slightly behind the frame (6), and swings in the horizontal direction.

The lifting / lowering hydraulic cylinder (4) supports the weight of the blow-out pipe (3) and the left / right swinging hydraulic cylinder (5) and raises / lowers them. In order to perform the operation with low energy, it is preferable to provide counterweights (9), (9) having a weight corresponding to these members (3), (5) via a wire (10).

An air hose (1) is connected to the outlet pipe (3).
Contact 1) and (11) so that compressed air can be supplied.

On the lower surface side of the blowing pipe (3), blowing nozzles (2) are installed at predetermined intervals. The number of blowing nozzles (2) provided in the blowing pipe (3) is, for example, 8
It is often 20 to 20 (preferably 10 to 16). It is desirable that the blowing nozzle (2) can adjust the blowing angle.

The blowing angle of the blowing nozzle (2) is 20 to 70 ° with respect to the horizontal direction at the center angle, especially 30 to 70 °.
Often it is 70 °. In this case, the blowing nozzle
When (2) is in the upper position and in the lower position,
The blowing angle can be automatically changed.

A cleaner for cleaning around a temperature measuring duct according to the present invention.
Since (1) has such a structure,
Blowing nozzle (2) while moving up and down and swinging (3)
Air can be blown onto the furnace (F) around the installation site of the temperature measurement duct (D) from the air. At this time, the blowing pipe (3) is alternately moved up and down between an upper fixed position and a lower fixed position according to a predetermined time program, and swings right and left, and if necessary, a blowing nozzle ( 2) By changing the angle and changing the air blowing speed and amount, the angle, direction,
Change the distance and speed.

A cleaner for cleaning around the temperature measuring duct (1)
A heat shield (12) is provided at an appropriate location, especially above the blow-off pipe (3) beside the hydraulic cylinder (4) for elevating and lowering, in order to prevent the device from heat and flame from the coal port. Is preferred.

<Operation> As described above, according to the present invention, the first means (4) for vertically moving the blowing pipe (3) having the blowing nozzle (2) and the blowing pipe are provided.
(3) is provided with a second means (5) for oscillating in the left and right direction (furnace direction), so that the temperature from the blowing nozzle (2) is measured while moving up and down and oscillating the blowing pipe (3). Duct (D)
Air can be blown around the installation section.

By blowing air while moving up and down and oscillating left and right as described above, the temperature measuring duct (D) is surrounded, that is, near the foot of the duct (D) or on the furnace inside the foot (F). ), And deposits such as coal powder, surplus sealing material, dust, etc., which are deposited and adhered, are peeled off and reliably blown off to the area where the on-furnace cleaner can clean. This blowing effect is remarkable, and a more excellent cleaning effect is produced as compared with a case where air is simply blown from a certain height or direction. In addition, the cleaner for cleaning around the temperature measuring duct (1) of the present invention is mounted on a coal-carrying car (C) separately from the conventional on-furnace cleaner, and is specialized for cleaning around the temperature measuring duct (D). (The position of the temperature measuring duct (D) is fixed), so that it can be cleaned at all times. Further, since the cleaning cleaner (1) around the temperature measuring duct is located near the center of the coal-carrying car (C), the blown dust and the like are not scattered too far.

[0035]

The present invention will be further described with reference to the following examples.

FIG. 1 is a front view (viewed from a direction perpendicular to the rail (R) direction) showing an example of a cleaner (1) for cleaning around a temperature measuring duct according to the present invention. FIG. 2 is a side view (view from the rail (R) direction) of the cleaner (1) for cleaning around the temperature measuring duct of FIG. FIG. 3 shows AA of the cleaner (1) for cleaning around the temperature measuring duct of FIG.
It is an arrow view.

The cleaning cleaner (1) for cleaning around the temperature measuring duct is mounted on a coal carrier (C) running on a rail (R) on a coke oven furnace (F). As shown in FIG. 4, the mounting position on the coal-charging truck (C) is a location near the center of the coal-charging truck (C).

The first means (4) is composed of a pneumatic cylinder for lifting and lowering, and the second means (5) is composed of a pneumatic cylinder for swinging right and left and related members.

The lifting / lowering pneumatic cylinder (4) is suspended from the machine frame of the coal-equipped vehicle (C) via a connecting member. A frame (6) is provided at the lower end of the lifting hydraulic cylinder (4), and guide frames (6a), (6a) are fixed to both sides of the frame (6) in a shape close to M-shape. It is. The guide frames (6a), (6a) can be smoothly moved up and down along guide rails (7), (7) installed vertically in the machine frame of the coal-equipped car (C).

A hydraulic cylinder (5) for swinging left and right is mounted slightly below the front side of the frame (6), and the movement of the piston of the hydraulic cylinder (5) is linked as shown in FIG.
Through (8), the air is transmitted to an outlet pipe (3) arranged in a horizontal posture slightly behind the frame (6) and swings in the left-right direction. The swing time from left to right and right to left is set to, for example, 4 seconds.

A total of 12 blow-off nozzles (2) are provided at regular intervals from the blow-off pipe (3).
As shown in (1), air is blown out at a central angle of 60 ° with respect to the horizontal direction. The angle of the blowing nozzle (2) can be adjusted to 30 to 70 degrees with respect to the horizontal direction. In addition, air hoses (11), (11) are connected to the blow-out pipe (3), and use an exhaust blower of an on-furnace cleaner (not shown) (a dedicated compressor may be used. This is advantageous in terms of equipment cost), so that compressed air can be supplied.

In order to prevent the lifting / lowering pneumatic cylinder (4) from falling due to insufficient air and the blow-out pipe (3) from contacting an obstacle or the like to break down, the blow-out pipe (2) with the blow-out nozzle (2) is used. 3) Fluid pressure cylinder for left and right swing (5)
The counterweights (9), (9) and the wire (10) are provided so as to catch the frame (6), the guide frames (6a), (6a) and the like.

The pitch of the horizontal swing of the blow-out pipe (3) by the hydraulic cylinder (5) for the horizontal swing is 1 in this embodiment.
The pitch is set to 20 mm. Also blowout piping
The height of the blowing nozzle (2) from (3) above the furnace (F) is set to be two levels of 230 mm and 530 mm in distance from the center of the pipe diameter.

When the pneumatic cylinder (4) for raising and lowering and the fluid pressure cylinder (5) for oscillating left and right are operated, the air is blown from the blowing nozzle (2) while the blowing pipe (3) moves up and down and oscillates left and right. Blow-off, deposits such as coal powder, excess sealing material, dust, etc. that are deposited and adhered on the upper surface of the temperature measurement duct (D), near the legs of the duct (D), and on the furnace (F) inside the legs, are easily formed. It is peeled off and blown off to the area that can be cleaned by the on-furnace cleaner. The blown-off coal powder, surplus sealing material, dust and the like are later sucked by a furnace cleaner to be cleaned.

When the area around the temperature measuring duct (D) was cleaned using the cleaner (1) for cleaning around the temperature measuring duct, almost complete cleaning could be achieved. On the other hand, when only the on-furnace cleaner was used, this location could not be cleaned at all.

[0046]

As described in the section of the operation, the blow-out piping using the cleaner (1) for cleaning around the temperature measuring duct of the present invention.
When air is blown while raising and lowering (3) vertically and swinging left and right, the air accumulates and adheres around the temperature measuring duct (D), that is, near the leg of the duct (D) or on the furnace (F) inside the leg. Deposits such as coal powder, surplus sealing material, dust and the like are peeled off due to pressure fluctuations, and are reliably blown off to the area where the on-furnace cleaner can clean. This blowing effect is remarkable,
Compared to a case where air is simply blown from a certain height or direction, an incomparably superior cleaning effect is achieved.

In addition, the cleaner (1) for cleaning around the temperature measuring duct according to the present invention is different from a conventional on-furnace cleaner in that a coal-carrying car (C) is provided.
It is specially designed for cleaning around the temperature measuring duct (D), so it can always be cleaned.

Further, since the cleaning cleaner (1) for cleaning around the temperature measuring duct is located near the center of the coal truck (C), the blown dust and the like are not scattered too far.

Therefore, according to the present invention, it is possible to fundamentally solve the difficulty of cleaning around the temperature measuring duct (D), which has been conventionally suspended. In addition, even when a duct with legs is provided on the furnace (F), the cleaning can be performed using the cleaner (1) for cleaning around the temperature measuring duct.

Further, since the exhaust blower of the on-furnace cleaner can be used for blowing air from the blowing nozzle (2), it is not essential to newly install a compressor.

The cleaner (1) for cleaning around the temperature measuring duct of the present invention can be operated unattended, and the structure and mechanism of the apparatus are relatively simple, which is advantageous in terms of apparatus cost and maintenance. is there.

[Brief description of the drawings]

FIG. 1 is a front view (a view seen from a direction perpendicular to a rail (R) direction) showing an example of a cleaner (1) for cleaning around a temperature measuring duct of the present invention.

FIG. 2 is a side view (view from the rail (R) direction) of the rail side cleaning cleaner (1) in FIG. 1;

FIG. 3 is a view of the rail side cleaning cleaner (1) in FIG.

FIG. 4 is an explanatory view schematically showing an example of the positional relationship of a cleaner (1) for cleaning around a temperature measuring duct with respect to a coal-carrying car (C) traveling on a rail (R) on a coke oven furnace (F). is there.

FIG. 5 is a perspective view of a temperature measuring duct (D).

[Explanation of symbols]

 (F)… on the furnace (of coke oven), (R)… (coal-charging car) rail, (C)… coal-charging car, (M)… cab, (H)… hopper, (E)… chute port, ( D) ... temperature measuring duct, (1) ... cleaner for cleaning around temperature measuring duct, (2) ... blow-out nozzle, (3) ... blow-out pipe, (4) ... first means, hydraulic cylinder for lifting and lowering, (5 )… Second means, hydraulic cylinder for oscillating left and right, (6)… Frame, (6a)… Guide frame, (7)… Guide rail, (8)… Link, (9)… Counter weight, (10) … Wire, (11)… air hose, (12)… heat insulation cover

Claims (3)

[Claims] (1) To be installed on a coal carrier (C) running on a rail (R) on a coke oven furnace (F), and to clean around a temperature measuring duct (D) installation part on the furnace (F). A cleaner (1) for cleaning around the temperature measuring duct, wherein first means (4) for vertically moving a blowing pipe (3) having a blowing nozzle (2) and having a horizontal posture, A second means (5) for swinging the blow-off pipe (3) in the left-right direction (toward the furnace group) is provided, so that the blow-out nozzle (2) moves up and down and swings the blow-out pipe (3). A cleaner for cleaning around a temperature measuring duct on a coke oven furnace, wherein air can be blown around the installation part from the temperature measuring duct (D). 2. The first means (4) is a hydraulic cylinder for lifting and lowering.
2. A cleaner for cleaning around a temperature measuring duct according to claim 1, wherein said second means (5) is a hydraulic cylinder for swinging left and right. 3. The cleaner for cleaning around a temperature measuring duct according to claim 1, wherein the blowing angle of the blowing nozzle (2) is adjustable.