JP6989342B2 - Rising pipe cleaning device - Google Patents

Description

The present invention relates to a riser pipe cleaning device used for cleaning a riser pipe of a coke oven.

The coke oven is equipped with a riser pipe at the top of the carbonization chamber for recovering the gas generated during carbonization of coal in the carbonization chamber. The gas generated during carbonization of coal in a coke oven is thermally decomposed by the high temperature environment of the carbonization chamber to generate carbon. Therefore, in the coke oven, carbon precipitates and adheres to the inner surface of the riser pipe.

When the amount of carbon deposits on the inner surface of the riser pipe increases, the gas flow path becomes narrower in the riser pipe. Therefore, it is desirable that the riser pipe periodically removes the deposits on the inner surface.

As a device for removing deposits on the inner surface of the riser pipe, the following cleaning devices have been conventionally proposed.

The cleaning device was provided on the horizontal table provided on the upper side of the coke furnace, the rail provided on the upper side of the horizontal table, the traveling body running across the rising pipe along the rail, and the traveling body. It includes a vertically long frame body and a vertical rail member held by the vertically long frame body in a state where it can be tilted in the front-back and left-right directions. Further, a shaft-shaped member extending in the vertical direction, a cutter provided below the shaft-shaped member, and a motor attached to the upper end of the shaft-shaped member can be moved in the vertical direction along the rail member. (For example, refer to Patent Document 1).

When removing the deposits on the inner surface of the ascending pipe using this cleaning device, first, the traveling body is moved along the rail, and the shaft-shaped member and the cutter are arranged above the ascending pipe to be worked. Next, a shaft-shaped member and a cutter that are rotationally driven by a motor are inserted through the opening on the upper end side of the riser pipe and lowered until the cutter reaches the lower end portion of the riser pipe. As a result, the deposits on the inner surface of the riser pipe are scraped off by the rotating cutter and removed.

Japanese Unexamined Patent Publication No. 2-47187

However, in a coke oven, the ascending pipe may be tilted from the vertical direction with respect to the lower end portion of the ascending pipe due to an error during the production of the coke oven, the influence of heat during operation, or the like. Further, when the ascending pipe is tilted from the vertical direction, the tilting direction and the tilting angle are different for each ascending pipe.

Hereinafter, in the present specification, the inclination regarding the ascending pipe means the inclination from the vertical direction with respect to the lower end portion of the ascending pipe as described above.

According to Patent Document 1, when a shaft-shaped member and a cutter are inserted into an ascending pipe, the cutter moves following the inner surface of the ascending pipe.

However, when the ascending pipe is tilted, the axial center position and the axial center direction of the shaft-shaped member deviate from the axial center position and the axial center direction of the ascending pipe. Therefore, when the cutter is lowered in the ascending pipe via the shaft-shaped member, the cutter is placed on the inner surface of the portion of the circumferential direction of the ascending pipe located in the direction in which the ascending pipe is tilted from the vertical direction. It is pressed harder than the other parts in the circumferential direction. Further, as the inclination of the ascending pipe becomes larger, the phenomenon that the cutter is biased toward a part of the circumferential direction of the ascending pipe becomes remarkable.

Therefore, in the case shown in Patent Document 1, when the ascending pipe is tilted, it is difficult to evenly remove the deposits on the inner surface of the ascending pipe in the circumferential direction of the ascending pipe. Become.

Therefore, according to the present invention, even if the ascending pipe of the coke oven is tilted, the removal treatment of the deposits adhering to the inner surface of the ascending pipe can be carried out evenly in the circumferential direction of the ascending pipe. It is intended to provide a device.

The present invention is a riser pipe cleaning device used for cleaning a riser pipe according to claim 1 in order to solve the above-mentioned problems, and the frame, the shaft casing attached to the frame, and the upper and lower sides thereof. A rotating shaft rotatably held in the shaft casing in an extended arrangement, a driving means for rotationally driving the rotating shaft, and a telescopic shaft attached to the lower end side of the rotating shaft in a coaxial center arrangement with the rotating shaft. When the stretching means for stretching the shaft, and a cleaning member attached to the lower end of the shaft, together with previous SL frame is placed on the water sealing frame of the riser, the increase around the central axial position of the riser obtained by projection of the axial direction perpendicular to the plane of the tube, Ru is arranged in the region of the annular shape corresponding to the projection of the annular shape of the water seal frame comprising a leg, the frame, the axial direction and the axial center position of the rotary shaft which is held in the shaft casing and to the axial direction and the axial center position of the region of the annular shape wherein the legs are arranged Ru is arranged together, the increased cleaning apparatus.

The frame is configured to include fixing means for detachably fixing to the water sealing frame or the rising pipe.

A heat-resistant cover is provided on the outer periphery of the shaft.

The rotating shaft and the shaft have a cylindrical shape, and are provided with an air nozzle for blowing cooling air toward the inside of the rotating shaft.

According to the ascending pipe cleaning device of the present invention, even if the ascending pipe of the coke oven is tilted, the treatment for removing the deposits on the inner surface of the ascending pipe is carried out evenly in the circumferential direction of the ascending pipe. Can be done.

It is a schematic cut side view which shows 1st Embodiment of a riser pipe cleaning apparatus. It is the AA direction arrow view of FIG. It is a BB direction arrow view of FIG. FIG. 1 is a view taken along the line CC in FIG. 1. It is a figure which shows the drive means in the ascending pipe cleaning device of FIG. It is a figure which shows the main part of the shaft in the riser pipe cleaning device of FIG. It is a schematic diagram which shows the use state of the riser pipe cleaning apparatus of FIG. It is a schematic diagram which shows another use state of the riser pipe cleaning apparatus of FIG. It is a figure which shows the transfer method of the riser pipe cleaning apparatus of FIG. It is a figure which shows the main part of the shaft in the application example of 1st Embodiment.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a schematic side view of cutting showing a first embodiment of a rising pipe cleaning device. FIG. 2 is a view taken along the line AA of FIG. FIG. 3 is a view taken along the line BB in FIG. 1. FIG. 4 is a view taken along the line CC of FIG. 1. FIG. 5 shows the driving means in the ascending pipe cleaning device of FIG. 1, and is a view taken along the line DD in FIG. FIG. 6 is an enlarged cross-sectional view showing a part of the shaft in the riser pipe cleaning device of FIG.

FIG. 7 is a partially cut schematic side view showing a state in which the riser pipe cleaning device is installed in the riser pipe. FIG. 8 is a partially cut schematic side view showing a state in which the shaft is extended as another usage state of the riser pipe cleaning device. FIG. 9 is a schematic side view showing another transfer method of the riser pipe cleaning device.

Here, first, the configuration of the ascending pipe of the coke oven to be cleaned by the ascending pipe cleaning device will be described with reference to FIG.

The ascending tube is shown by reference numeral 100 in FIG. A lid 102 is provided in the opening 101 on the upper end side of the riser pipe 100 so as to be openable and closable. Note that FIG. 8 shows the lid 102 in an open state.

Further, on the upper end side of the riser pipe 100, a groove-shaped water sealing frame 103 extending over the entire circumference in the circumferential direction is provided. When the opening 101 of the ascending pipe 100 is closed by the lid 102, the water sealing frame 103 immerses the outer peripheral portion of the lid 102 in water (not shown) stored in the water sealing frame 103, thereby immersing the upper end side of the ascending pipe 100. It is for sealing between the lid 102 and the lid 102.

A refractory material 104 is attached to the entire inner peripheral surface of the riser pipe 100. Therefore, during the operation of the coke oven, in the riser pipe 100, carbon is deposited and adhered to the inner surface of the refractory material 104 to form the deposit 105.

Reference numeral 106 in FIG. 8 is a corridor provided along the arrangement direction of the ascending pipe 100 in the coke oven in an arrangement surrounding the upper part of the ascending pipe 100.

The riser pipe cleaning device of the present embodiment used for cleaning the riser pipe 100 having the above configuration is shown by reference numeral 1 in FIGS. 1 to 5, and is a frame 2 and a shaft casing 3 attached to the frame 2. A rotary shaft 4 rotatably held by the shaft casing 3 in an arrangement extending vertically, a drive means 5 for rotationally driving the rotary shaft 4, and a coaxial center arrangement with the rotary shaft 4 so that the upper end side is the lower end side of the rotary shaft 4. It is configured to include a telescopic shaft 6 attached to the shaft 6, an expansion / contraction means 7 for expanding / contracting the shaft 6, and a cleaning member 8 attached to the lower end side of the shaft 6.

When the water sealing frame 103 of the ascending pipe 100 is projected onto a plane perpendicular to the axial direction of the ascending pipe 100, a projection drawing having an annular shape centered on the axial center position of the ascending pipe 100 can be obtained.

Therefore, the frame 2 includes legs 9 arranged in an annular shape region corresponding to the projection drawing of the water sealing frame 103. Further, the frame 2 is set with the following installation conditions regarding the relative arrangement between the legs 9 and the mounting position of the shaft casing 3 on the frame 2.

In this installation condition, the axial center direction and the axial center position of the rotating shaft 4 held in the shaft casing 3 are arranged in accordance with the axial center direction and the axial center position of the annular-shaped region in which the legs 9 are arranged. , Is a condition.

As a result, the frame 2 can be placed on the water-sealed frame 103 of the rising pipe 100 as shown by the two-dot chain line in FIGS. 1 and 4 via the legs 9, and thus mounted on the water-sealed frame 103. In the frame 2 in the placed state, the axial center position and the axial center direction of the rotating shaft 4 held via the shaft casing 3 are set to the axial center direction and the axial center position of the riser pipe 100 provided with the water sealing frame 103. It can be arranged together.

In the present embodiment, the frame 2 is, for example, three frames arranged at intervals of about 120 degrees in the circumferential direction on the circumference of a virtual circle having the same diameter as the circle along the inner bottom surface of the groove of the water sealing frame 103. A pillar member 10 extending vertically is provided.

As shown in FIGS. 1 and 2, the two pillar members 10 out of the three pillar members 10 are connected to each other by the first upper beam member 11a extending in the lateral direction. The upper end side of the remaining one column member 10 is connected to the intermediate portion in the longitudinal direction of the first upper beam member 11a via a second upper beam member 11b extending in the lateral direction. Therefore, the upper end sides of the three pillar members 10 are connected to each other via the first and second upper beam members 11a and 11b having a T-shaped arrangement.

Further, as shown in FIGS. 1 and 4, the pillar members 10 adjacent to each other in the circumferential direction of the virtual circle have lower beam members 12 in which the portions closer to the lower end than the middle portion in the vertical direction extend laterally. It is connected via.

As a result, the frame 2 has a substantially triangular prism shape whose outer shape extends vertically by the pillar members 10, the upper beam members 11a and 11b, and the lower beam members 12, and has a frame structure having a space extending vertically inside. It is said to be a body.

Each pillar member 10 is set so that the dimension protruding downward from the lower beam member 12 is larger than the depth of the groove of the water sealing frame 103, and is set from the lower beam member 12 in each pillar member 10. The lower end side protruding downward is the three legs 9 for placing the frame 2 on the inner bottom surface of the groove of the water sealing frame 103.

The frame 2 is further configured to include a fixing means 13 for detachably fixing to the water sealing frame 103 or the rising pipe 100 in a state of being placed on the water sealing frame 103 via the legs 9.

In the present embodiment, the fixing means 13 is configured to include, for example, an individual toggle clamp 13a that sandwiches the outer peripheral edge of the water sealing frame 103 on each leg 9. As a result, in the state where each toggle clamp 13a is opened, the work of placing the frame 2 on the inner bottom surface of the groove of the water sealing frame 103 via each leg 9 and the work of removing the frame 2 from the top of the water sealing frame 103. And can be done. On the other hand, the frame 2 has an ascending pipe by operating each toggle clamp 13a to sandwich the outer peripheral edge of the water sealing frame 103 with each leg 9 placed on the inner bottom surface of the groove of the water sealing frame 103. The position and posture relative to 100 can be fixed.

The fixing means 13 may be configured such that each leg 9 is provided with a clamp such as a screw type clamp or a lever operation type clamp that sandwiches the outer peripheral edge of the water sealing frame 103 in a form other than the toggle clamp 13a. Of course. Further, the fixing means 13 may have a configuration in which a toggle clamp 13a or another type of clamp is attached to the frame 2 via an attachment member different from the leg 9. Further, the fixing means 13 may adopt a fixing means other than the clamp as long as the position and posture of the frame 2 placed on the water sealing frame 103 with respect to the rising pipe 100 can be detachably fixed. Further, the water sealing frame 103 may be provided with a configuration for fixing the frame 2 to a place other than the outer peripheral edge or to the rising pipe 100.

Inside the frame 2, a cylindrical shaft casing 3 extending vertically is arranged so as to satisfy the predetermined installation condition. The outer peripheral portion of the shaft casing 3 on the lower end side is attached to each lower beam member 12 via the bracket 14 and the support member 15.

As shown in FIGS. 1 and 4, the rotary shaft 4 is a cylinder extending up and down with dimensions protruding from the shaft casing 3 on both the upper and lower sides, and the radial bearing 16 and the thrust bearing 17 are formed inside the shaft casing 3. It is attached via. As a result, the rotary shaft 4 is rotatably held by the shaft casing 3, and the weight of the rotary shaft 4 and the weight of the shaft 6 and the cleaning member 8 and each member attached to the rotary shaft 4 as described later are reduced. , Supported by the shaft casing 3. If the rotary shaft 4 can be rotatably held inside the shaft casing 3 and the weight of the bearings attached to the rotary shaft 4 and the rotary shaft 4 can be supported, the type, number, and arrangement of the bearings can be arbitrarily set. Of course, it may be.

As shown in FIGS. 1, 3, and 5, on the upper end side of the rotating shaft 4 protruding upward from the shaft casing 3, a ring-shaped driven drive, which is one of the constituent members of the driving means 5, is provided on the outer peripheral portion. The gear 18 is attached. In addition, in FIG. 5, for convenience of illustration, the description of the member arranged inside the rotating shaft 4 is omitted among the constituent members described later of the telescopic means 7. On the other hand, as shown in FIG. 1, a ring-shaped shaft support 19 is attached to the outer peripheral portion of the rotating shaft 4 on the lower end side protruding downward from the shaft casing 3.

As shown in FIGS. 3 and 5, in the drive means 5, in addition to the driven gear 18 attached to the rotary shaft 4, a drive gear 20 that meshes with the driven gear 18 and a drive gear 20 are attached to the output shaft 21a. It is configured to include a drive motor 21.

The frame 2 includes a motor mounting seat 22 arranged so as to project to the outside of the substantially triangular prism shape described above at a position on the side of the upper end portion of the rotating shaft 4. The motor mounting seat 22 is attached to the lower beam member 12, for example, via a support column member 23 extending in the vertical direction.

The motor mounting seat 22 is configured to have an opening (not shown) that penetrates vertically, and a drive motor 21 with a speed reducer is mounted downward on the upper side of the opening. Therefore, the drive motor 21 is arranged so that the output shaft 21a projects downward from the motor mounting seat 22 through the opening, and the drive gear 20 is mounted on the lower end side of the output shaft 21a.

The shaft 6 is provided with a telescopic expansion / contraction mechanism, for example, as shown in FIGS. 1 and 8. In the present embodiment, as shown in FIG. 8, the shaft 6 has a configuration in which hexagonal cylinders 24a, 24b, 24c, 24d, 24e, and 24f having different sizes are slidably connected in six stages. There is. The reason why the cylinders 24a to 24f of each stage are hexagonal is that, regardless of the expansion and contraction state, the cylinders 24a of the uppermost stage arranged on the outermost side and the cylinders 24f of the lowest stage arranged in the center are arranged. This is because the force in the rotation direction is sequentially transmitted through the cylinders 24b, 24c, 24d, and 24e in the intermediate stage so that the entire shaft 6 can be rotated integrally.

As shown in FIG. 1, the shaft 6 is arranged below the rotating shaft 4 with the central axis of the shaft 6 aligned with the axis of the rotating shaft 4, and the upper end side of the uppermost cylinder 24a is the shaft support 19. It is connected to the underside.

Of course, the shaft 6 may have 5 or less or 7 or more stages of slidably connected cylinders. Further, if the shaft 6 is capable of transmitting a force in the rotational direction from the uppermost cylinder 24a to the lowermost cylinder 24f regardless of the expansion / contraction state, the shape of each cylinder may be triangular or 4. It may be a quadrangle or any other polygon other than a hexagon. Further, the cylinders of each stage may be circular as long as a means for preventing relative rotation such as a key is provided between the cylinders of the adjacent stages.

As shown in FIG. 1, the cleaning member 8 is, for example, a disk-shaped brush 25 in which a bundle of wire rods 27 is projected from the outer periphery of the wheel 26. The outer diameter of the disk shape of the brush 25 is set to be smaller than the inner diameter of the refractory material 104 of the riser pipe 100.

The brush 25 has a wheel 26 attached to the lower end side of the lowermost cylinder 24f of the shaft 6 in a state where the disc-shaped axial center position is aligned with the central axis of the shaft 6.

The brush 25 may be provided with a bundle of wire rods 27 on the outer periphery of the wheel 26 over the entire circumference in the circumferential direction, or may be provided intermittently in the circumferential direction.

As a result, in the ascending pipe cleaning device 1 of the present embodiment, when the drive motor 21 is operated, the rotary drive force 4 is transmitted from the output shaft 21a to the rotary shaft 4 via the drive gear 20 and the driven gear 18. And the shaft 6 and the brush 25 which is a cleaning member 8 can be rotationally driven together.

As shown in FIGS. 1 and 8, the telescopic means 7 is configured to include, for example, a hoist 28 arranged above the rotating shaft 4. Further, the wire rope 29 drawn from the hoist 28 is guided to the inside of the shaft 6 through the inside of the rotating shaft 4, and the hook 30 provided on the tip end side of the wire rope 29 is a cylinder at the lowermost stage of the shaft 6. It is connected to the suspension portion 31 provided on the upper end side of the 24f via a connector 32 including a swivel 33 and a shackle 34.

The hoist 28 is suspended and supported by a second upper beam member 11b arranged so as to cross directly above the axial center position of the rotating shaft 4.

As a result, the telescopic means 7 can wind the wire rope 29 by the hoist 28, so that the shaft 6 can be contracted as the lowermost cylinder 24f is lifted. Further, the telescopic means 7 can extend the shaft 6 as the lowermost cylinder 24f is suspended by feeding out the wire rope 29 from the hoist 28.

In the telescopic means 7, the connecting tool 32 interposed between the hook 30 on the tip end side of the wire rope 29 and the hanging portion 31 of the lowermost cylinder 24f is configured to include the swivel 33, so that the shaft is provided. Even if 6 rotates, the rotation is blocked by the swivel 33 and is not transmitted to the wire rope 29.

Further, in the ascending pipe cleaning device 1 of the present embodiment, when the shaft 6 and the cleaning member 8 are inserted into the ascending pipe 100 as described later, the shaft 6 is less likely to receive the heat inside the ascending pipe 100. It is configured to include a heat shield means 35 for cooling the shaft 6 and a cooling means 36 for cooling the cleaning member 8.

The heat shield means 35 is configured to include a heat-resistant cover 37 arranged at a position surrounding the periphery of the shaft 6. The heat-resistant cover 37 has a bellows tubular structure formed of a heat-resistant cloth woven from heat-resistant fibers such as silica fibers, and can be expanded and contracted in the vertical direction following the expansion and contraction of the shaft 6.

The upper end side of the heat-resistant cover 37 is attached to the lower side of the outer peripheral edge portion of the shaft support 19.

As shown in FIG. 1, on the lowermost cylinder 24f of the shaft 6, a ring-shaped support member 38 corresponding to the diameter of the heat-resistant cover 37 is provided on the outer periphery on the lower end side in a rod-shaped or plate-shaped arrangement along the radial direction. It is attached via a plurality of attachment members 39. The lower end side of the heat-resistant cover 37 is attached to the support member 38.

As a result, the outer periphery of the shaft 6 is always covered with the heat-resistant cover 37 regardless of the expansion / contraction state of the shaft 6.

As shown in FIGS. 1, 3, and 5, the cooling means 36 has a cover member 40 arranged so as to cover above the upper end opening of the rotating shaft 4, and a posture toward the inside of the upper end opening of the rotating shaft 4. The cover member 40 is provided with an air nozzle 41 installed in the cover member 40.

In the present embodiment, as shown in FIG. 3, the cover member 40 has a central portion having an area covering the upper end opening of the rotating shaft 4 and an outer peripheral side along the radial direction at intervals of 120 degrees in the circumferential direction from the central portion. It has a three-pronged shape (substantially Y-shaped) including an extending portion, and three outer peripheral portions are attached to the pillar members 10 having corresponding arrangements.

An opening 42 for passing the hook 30 of the hoist 28 and the wire rope 29 in the vertical direction is provided in the central portion of the cover member 40, and the air nozzle 41 rotates on the lower end side serving as an air outlet around the opening 42. It is attached to the inside of the upper end opening of the shaft 4 in a downwardly arranged position. FIG. 3 shows a configuration in which four air nozzles 41 are attached to the cover member 40.

The upper end side of each air nozzle 41 is connected to a common header 43, and an air supply line for supplying cooling air 44 from an air supply unit (not shown) is connected to the header 43.

Further, in the cooling means 36, the joint portion between the cylinders 24a to 24f in each stage of the shaft 6 is shown in FIG. 6 as an example of the joint portion between the cylinder 24a in the uppermost stage and the cylinder 24b in the next stage. In addition, a gap 45 for passing air from the inside to the outside of the shaft 6 is provided between the inner peripheral portion of the cylinder 24a on the upper stage side and the outer peripheral portion of the cylinder 24b on the lower stage side.

In the cooling means 36 having the above configuration, when the cooling air 44 is supplied from the air supply unit to each air nozzle 41 via the air supply line and the header 43, each air nozzle 41 opens the upper end of the rotating shaft 4. Cooling air 44 is blown inward downward. The cooling air 44 blown into the inside of the rotating shaft 4 from the upper end side flows through the inside of the rotating shaft 4 to the lower end side, and then flows into the inside of the shaft 6 from the upper end side to each stage. The inside of the cylinders 24a to 24f of the above is circulated downward. As a result, the shaft 6 can be cooled from the inside by the cooling air 44.

Further, a part of the cooling air 44 flowing through the inside of the shaft 6 leaks from the inside to the outside of the shaft 6 through the gap 45 provided in the joint portion between the cylinders 24a to 24f of each stage. The cooling air 44 leaking to the outside of the shaft 6 in this way fills the space between the shaft 6 and the heat-resistant cover 37, and then is sequentially sent downward. Therefore, a layer of cooling air 44 is formed in the space between the shaft 6 and the heat-resistant cover 37, and new cooling air 44 is sequentially supplied from the inside of the shaft 6 to this space. The shaft 6 is designed to shield heat from the heat from the outside of the heat-resistant cover 37. Further, the cooling air 44 flowing from above to below in the space between the shaft 6 and the heat-resistant cover 37 can cool the shaft 6 from the outside and cool the heat-resistant cover 37 from the inside.

The cooling air 44 that has flowed through the space between the shaft 6 and the heat-resistant cover 37 to the lower end side of the heat-resistant cover 37 is blown downward through the inside of the support member 38. Therefore, in the cooling means 36, the cleaning member 8 can be cooled by the cooling air 44 blown from the lower end side of the heat-resistant cover 37 to the lower side of the heat-resistant cover 37.

In the riser pipe cleaning device 1 of the present embodiment, for example, a suspension portion 46 is provided on the upper side of the second upper beam member 11b so as to be aligned with a position directly above the center of gravity of the entire device. As a result, the ascending pipe cleaning device 1 of the present embodiment can suspend and convey the suspension portion 46 and place it on the water sealing frame 103 of the ascending pipe 100 to be cleaned.

As described above, the transport means 47 for transporting the riser pipe cleaning device 1 of the present embodiment to the position of each riser pipe 100 provided in the coke oven is, for example, in the coke oven, as shown in FIG. A rail 48 extending along the arrangement direction of each riser pipe 100 is provided, and the traveling trolley 49 movable along the rail 48 is capable of turning and raising and lowering the arm 51 and moving the arm 51 in the longitudinal direction. It is configured to have a balancer 50 of the type attached. A hook 52 is provided on the tip end side of the arm 51.

Regarding the transport means 47, the movement locus of the balancer 50 that moves along with the traveling of the traveling carriage 49 along the rail 48, and the ascending pipe of the present embodiment in a state of being suspended from the tip end side of the arm 51 of the balancer 50. The movement locus when moving the cleaning device 1 in the direction in which the ascending pipes 100 are arranged and when moving the cleaning device 1 to the upper position of the ascending pipe 100 to be cleaned does not interfere with each equipment or equipment of the coke oven. The installation position and size of each component of the transport means 47 are set so as to be secured in the area. The rail 48 may be fixed to a fixed portion of the coke oven via a support means (not shown).

Further, the transport means 47 is arranged so that a worker (not shown) riding on the corridor 106 provided corresponding to the upper part of the riser pipe 100 in the coke oven can manually operate the tip end side of the arm 51 of the balancer 50. It is preferable that it is provided in.

When the ascending pipe cleaning device 1 of the present embodiment having the above configuration is stored or conveyed, the wire rope 29 is wound by the hoist 28 to keep the shaft 6 in the most contracted state. For convenience, this state is referred to as an initial state of the rising pipe cleaning device 1 of the present embodiment.

When cleaning the ascending pipe 100 using the ascending pipe cleaning device 1 of the present embodiment, as shown in FIG. 7, it is conveyed to the suspension portion 46 of the ascending pipe cleaning device 1 of the present embodiment as an initial state. The hook 52 of the means 47 is hung and lifted, and is conveyed to an upper position of the riser pipe 100 to be cleaned.

The riser pipe 100 is in a state where the lid 102 is opened, and in this state, the transport means 47 is operated to install the riser pipe cleaning device 1 of the present embodiment on the water seal frame 103 of the riser pipe 100 via the legs 9. Place on. At this time, the riser pipe cleaning device 1 of the present embodiment may appropriately adjust the arrangement of the motor mounting seat 22 in the circumferential direction so that the motor mounting seat 22 does not interfere with the lid 102. At this time, the lower portion of the shaft 6 and the cleaning member 8 are inserted and arranged inside the upper portion of the riser pipe 100.

Next, the rising pipe cleaning device 1 of the present embodiment fixes the frame 2 to the water sealing frame 103 by the fixing means 13. As a result, in the ascending pipe cleaning device 1 of the present embodiment, the axial center direction and the axial center position of the shaft 6 are arranged so as to match the axial center direction and the axial center position of the ascending pipe 100 together with the rotating shaft 4. be able to.

Next, in the ascending pipe cleaning device 1 of the present embodiment, the operation of the drive motor 21 is started, and the rotary drive of the shaft 6 and the cleaning member 8 is started together with the rotating shaft 4. As a result, inside the riser pipe 100, the outer peripheral end of the bundle of the wire rod 27 of the brush 25 provided as the cleaning member 8 orbits at a position close to the inner surface of the refractory material 104.

Further, in the ascending pipe cleaning device 1 of the present embodiment, the supply of the cooling air 44 from the air supply unit (not shown) to the air nozzle 41 via the air supply line and the header 43 is started, and the shaft 6 and the cleaning member are started. Cooling by the cooling air 44 of No. 8 is started.

Since the rotational drive and cooling of the shaft 6 and the cleaning member 8 need only be started when the shaft 6 is extended, the order of the rotational drive start and the cooling start may be first. , Both may be at the same time.

In this state, the ascending pipe cleaning device 1 of the present embodiment starts the extension operation of the shaft 6 by feeding out the wire rope 29 from the hoist 28. As a result, inside the riser pipe 100, as the lower end side of the shaft 6 descends, the outer peripheral end of the bundle of wire rods 27 of the brush 25 of the cleaning member 8 orbits a position close to the inner surface of the refractory material 104. While moving downward. When the outer peripheral end of the bundle of the wire rods 27 orbiting in this way touches the deposit 105 (see FIG. 8) adhering to the inner surface of the refractory material 104, the deposit 105 is brought into contact with the refractory material 104 by the wire rod 27. It is scraped off from the inside of.

In the ascending pipe cleaning device 1 of the present embodiment, the extension operation of the shaft 6 is continuously performed to lower the cleaning member 8 to the lower position of the ascending pipe 100 as shown in FIG. As a result, the deposit 105 adhering to the inner surface of the refractory material 104 is scraped off in the range where the cleaning member 8 in the vertical direction of the riser pipe 100 moves from the upper side to the lower side.

In the ascending pipe cleaning device 1 of the present embodiment, after the cleaning member 8 is lowered to the lower position of the ascending pipe 100 by the extension operation of the shaft 6 as described above, the hoist 28 starts winding the wire rope 29. , The shaft 6 is contracted. Even during the contraction operation of the shaft 6, if the outer peripheral end of the bundle of wire rods 27 that circulates around the brush 25 of the cleaning member 8 touches the deposit 105 adhering to the inner surface of the refractory material 104. The deposit 105 is scraped off from the inner surface of the refractory material 104 and removed.

Therefore, the ascending pipe cleaning device 1 of the present embodiment can clean the ascending pipe 100 by removing the deposit 105 adhering to the inner surface of the refractory material 104. Of course, in the ascending pipe cleaning device 1 of the present embodiment, the extension operation and the contraction operation of the shaft 6 as described above may be repeated a plurality of times for one ascending pipe 100.

When the cleaning of the ascending pipe 100 is completed, in the ascending pipe cleaning device 1 of the present embodiment, the wire rope 29 is wound up by the hoist 28 and the shaft 6 is contracted until it becomes the same as the initial state, and then the drive motor 21 The operation is stopped and the supply of the cooling air 44 to the air nozzle 41 is stopped. Next, the ascending pipe cleaning device 1 of the present embodiment removes from the ascending pipe 100 in the reverse procedure of the procedure for installing the ascending pipe 100.

As described above, in the ascending pipe cleaning device 1 of the present embodiment, by placing the frame 2 on the water sealing frame 103 of the ascending pipe 100, the axial center direction and the axial center position of the rotating shaft 4 supported by the frame 2 are set. Further, the direction and position of the central axis of the shaft 6 connected to the rotating shaft 4 can be arranged according to the axial direction and the axial center position of the riser pipe 100 provided with the water sealing frame 103.

Therefore, in the ascending pipe cleaning device 1 of the present embodiment, even when the ascending pipe 100 to be cleaned in the coke furnace is tilted, the axial direction and the axial position of the rotating shaft 4 and the axial center position, and The direction and position of the central axis of the shaft 6 can be arranged according to the axial direction and the axial center position of the riser pipe 100.

Therefore, in the ascending pipe cleaning device 1 of the present embodiment, even if the ascending pipe 100 is tilted, the cleaning member 8 provided on the tip end side of the shaft 6 is biased and pressed against the inner surface of the refractory material 104 of the ascending pipe 100. It can be prevented from being done. Therefore, according to the ascending pipe cleaning device 1 of the present embodiment, even when the ascending pipe 100 is tilted, the deposit 105 adhering to the inner surface of the fireproof material 104 of the ascending pipe 100 is removed. The treatment can be carried out evenly in the circumferential direction of the riser pipe 100 as compared with the conventional case.

Further, since the ascending pipe cleaning device 1 of the present embodiment has the shaft 6 as a telescopic type, it extends in the vertical direction with a fixed dimension larger than the vertical dimension of the ascending pipe as shown in Patent Document 1. No shaft-like member is required.

Therefore, the cleaning device shown in Patent Document 1 requires a vertically long frame vertically longer than the vertical dimension of the ascending pipe in order to hold the shaft-shaped member extending in the vertical direction with the predetermined fixed dimension. In order to support this vertically long frame, a traveling body having a large size such as straddling over the ascending pipe is required. However, in the ascending pipe cleaning device 1 of the present embodiment, the vertically long frame is longer than the ascending pipe 100. do not need. Therefore, the ascending pipe cleaning device 1 of the present embodiment can realize the frame 2 with dimensions that can be supported by the water sealing frame 103 of the ascending pipe 100.

In the above, as the means for transporting the ascending pipe cleaning device 1 of the present embodiment, a transporting means 47 including a rail 48 extending in the arrangement direction of the ascending pipe 100, a traveling carriage 49, and a balancer 50 is exemplified. However, as shown in FIG. 9, the ascending pipe cleaning device 1 of the present embodiment may be conveyed on the corridor 106 to the position of the ascending pipe 100 to be cleaned by using the trolley 53.

[Application example of the first embodiment]
FIG. 10 shows another example of the shaft as an application example of the first embodiment, and FIG. 10 (a) is a cut side view of a joint portion between cylinders of adjacent stages in the shaft, FIG. 10 (a). b) is an arrow view in the EE direction of FIG. 10 (a).

In FIGS. 10A and 10B, the same reference numerals as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. Further, for convenience of illustration, FIG. 10A shows the shaft in a state where the angle is changed by 30 degrees from the state shown in FIGS. 1 and 4.

In the same configuration as in the first embodiment, the shaft 6 in the present application example has the uppermost cylinder 24a in FIGS. 10 (a) and 10 (b) at the joint portion between the cylinders 24a to 24f of each stage of the shaft 6. As shown by taking the joint portion with the cylinder 24b of the next stage as an example, the shaft 6 is provided on the inner peripheral portion of the lower end portion of the upper cylinder 24a and the outer peripheral portion of the upper end portion of the lower cylinder 24b. It is configured to have protrusions 54 and 55 that come into contact with each other when the inclined surfaces 54a and 55a are extended.

As shown in FIG. 10A, the protrusion 54 provided on the upper cylinder 24a has a cross-sectional shape of the shaft 6 along the axial direction of the inner circumference of the cylinder 24a from the upper end side to the lower end side. It has a substantially wedge shape in which the amount of protrusion from the surface gradually increases.

As shown in FIG. 10A, the protrusion 55 provided on the lower cylinder 24b has a cross-sectional shape of the surface of the shaft 6 along the axial direction of the cylinder 24b from the upper end side to the lower end side. It has a substantially wedge shape in which the amount of protrusion from the surface gradually decreases.

Further, the inclined surface 54a on the inner peripheral side of the protrusion 54 and the inclined surface 55a on the outer peripheral side of the protrusion 55 have the same inclination angle with respect to the axial center direction of the shaft 6.

Further, in the present embodiment, as shown in FIG. 10B, the protrusion 54 and the protrusion 55 cover the entire circumference of the cylinder 24a and the cylinder 24b in the circumferential direction, that is, in the circumferential direction of the shaft 6. It is provided all around. Therefore, in the present embodiment, the protrusion 55 has a substantially hexagonal frustum-shaped outer shape that narrows from the upper side to the lower side. On the other hand, the protrusion 54 is a tubular body having an opening having a hexagonal cross section whose diameter is reduced from the upper side to the lower side.

Further, the protrusion 54 and the protrusion 55 are configured to have a groove 56 extending over the entire length in the vertical direction on one or both of the inclined surfaces 54a and 55a. 10 (a) and 10 (b) exemplify a configuration in which a groove 56 is provided in a protrusion 55 provided in a cylinder 24b on the lower stage side.

As a result, in the shaft 6, when the inclined surface 54a of the protrusion 54 and the inclined surface 55a of the protrusion 55 are in contact with each other, a flow passage for passing air 44 from the inside to the outside of the shaft 6 is provided inside the groove 56. It is formed.

Therefore, even with the shaft 6 of this application example, the cooling air 44 circulating inside the shaft 6 has a part thereof with the protrusion 54 provided at the joint portion between the cylinders 24a to 24f of each stage. It can leak from the inside to the outside of the shaft 6 through the flow passage formed by the groove 56 of the protrusion 55.

Therefore, the riser pipe cleaning device 1 using the shaft 6 of this application example can be used in the same manner as in the first embodiment to obtain the same effect.

Further, when the shaft 6 of this application example is extended, it is a joint portion between the cylinders 24a to 24f of each stage, and has an inclined surface 54a of the protrusion 54 as shown in FIGS. 10A and 10B. Since the inclined surface 55a of the protrusion 55 can be aligned with the inclined surface 55a, centering of the cylinders 24a to 24f of each stage can be automatically performed. Therefore, when the shaft 6 is rotated, it is possible to stabilize the rotation operation of the cylinders 24a to 24f of each stage.

Further, at the joint portion between the cylinders 24a to 24f of each stage, the force in the rotational direction is transmitted between the points where the inclined surface 54a of the protrusion 54 and the inclined surface 55a of the protrusion 55 are in surface contact with each other. Will come to be. Therefore, the shaft 6 can stably transmit torque to the brush 25 of the cleaning member 8 attached to the lower end side via the cylinders 24a to 24f of each stage.

In addition, in FIG. 10B, the protrusion 54 and the protrusion 55 exemplify a configuration in which the protrusion 54 extends over the entire circumference of the shaft 6 in the circumferential direction. On the other hand, although the protrusion 54 and the protrusion 55 are not shown, if the inclined surfaces 54a and the inclined surfaces 55a are in contact with each other, either or both of the protrusion 54 and the protrusion 55 may be peripheral. It may have a configuration that is intermittent in the direction. In this case, when the protrusions 54 have a configuration in which the protrusions 54 are intermittent in the circumferential direction, the gap between the protrusions 54 adjacent to each other in the circumferential direction becomes a flow passage through which the air 44 passes from the inside to the outside of the shaft 6. Further, when the protrusions 55 have a configuration in which the protrusions 55 are intermittent in the circumferential direction, the gap between the protrusions 55 adjacent to each other in the circumferential direction becomes a flow passage through which the air 44 passes from the inside to the outside of the shaft 6. Therefore, in this case, the groove 56 may be omitted.

Further, the present invention is not limited to the above-described embodiments and applications, and the sizes and arrangements of the constituent devices of the riser pipe cleaning device 1 shown in each figure are for convenience of illustration. It does not reflect the actual size or arrangement of each device.

Although the frame 2 is shown as a skeleton structure having a substantially triangular pillar-shaped outer shape, the frame 2 is provided with legs 9 for mounting on the water-sealed frame 103 of the ascending pipe 100, and the shaft is provided when the frame 2 is mounted on the water-sealed frame 103. If the axial center direction and the axial center position of the rotary shaft 4 held via the casing 3 can be arranged according to the axial center direction and the axial center position of the rising pipe 100, the overall shape and the structure of each part can be arranged. May adopt any shape or structure other than those shown in the figure.

For example, the frame 2 may have a polygonal prism shape or a cylindrical shape other than the triangular prism in outer shape. Further, the frame 2 may have a structure other than the skeleton structure, such as a structure in which a base plate having an opening is provided on the upper side of the legs 9 and a shaft casing 3 is attached on the upper side of the opening of the base plate.

Further, in the frame 2, the number and shape of the legs 9 arranged in the annular shape region corresponding to the projection drawing of the water sealing frame 103 may be freely set. For example, four or more legs 9 may be arranged in the circumferential direction. Further, if the legs 9 are formed of a cylindrical wall extending along the circumferential direction of the annular shape region, the number of legs 9 arranged in the circumferential direction may be 2 or 1.

Further, the leg 9 may have a bifurcated lower end and may be hung on the outer peripheral edge or the inner peripheral edge of the water sealing frame 103.

If the frame 2 placed on the water sealing frame 103 can be detachably fixed to the water sealing frame 103 or the rising pipe 100, the fixing means 13 has the shape and structure of the frame 2 as described above, and the legs 9 of the fixing means 13. Of course, any configuration other than those shown in the figure may be used depending on the shape, configuration, and arrangement.

The drive means 5 may be capable of rotationally driving the rotary shaft 4. Therefore, in the first embodiment, the drive means 5 has a driven gear 18 attached to the upper end side of the rotary shaft 4, a drive gear 20 that meshes with the driven gear 18, and a drive gear 20 attached to the output shaft 21a. Although the configuration including the drive motor 21 is illustrated, a configuration other than the one shown in the figure may be adopted, for example, by changing the mounting position of the driven gear 18 on the rotating shaft 4. Further, the power transmission mechanism for transmitting the rotational driving force of the drive motor 21 to the rotary shaft 4 includes, for example, a type using a chain and a sprocket, a type using a belt and a pulley, a type using a drive roller and a driven roller, and the like. Any power transmission mechanism other than the gear type may be adopted.

As the expansion / contraction means 7, any expansion / contraction means 7 having any configuration other than that shown in the drawing may be adopted as long as the shaft 6 can be expanded / contracted. For example, the telescopic means 7 may be of a type in which a vertically extending rod-shaped member connected to the upper side of the lowermost cylinder 24f of the shaft 6 via a swivel is fed in the vertical direction.

The cleaning member 8 exemplifies the disk-shaped brush 25, but if it has a function of rotating with the rotation of the shaft 6 and scraping off the deposit 105 when it comes into contact with the deposit 105 of the riser pipe 100. , A cleaning member 8 of a type other than the one shown in the figure, such as a rotary cutter or a swivel chain, may be adopted.

Of course, various other changes can be made without departing from the gist of the present invention.

2 Frame 3 Shaft Casing 4 Rotating Shaft 5 Driving Means 6 Shaft 7 Telescopic Means 8 Cleaning Members 13 Fixing Means 37 Heat Resistant Cover 41 Air Nozzle 44 Air 100 Rising Tube 103 Water Sealing Frame

Claims (4)

It is a riser pipe cleaning device used for cleaning the riser pipe.
With the frame
The shaft casing attached to the frame and
A rotating shaft that is rotatably held in the shaft casing in an arrangement that extends vertically,
A driving means for rotationally driving the rotating shaft and
A telescopic shaft mounted on the lower end side of the rotating shaft in a coaxial center arrangement with the rotating shaft,
An expansion / contraction means for expanding / contracting the shaft,
And a cleaning member attached to the lower end of the shaft,
Before SL frame while being placed on the water sealing frame of the riser, centered on the axial center position of the riser obtained by projection onto a plane perpendicular to the axial direction of the riser, the water comprising a leg circle Ru is arranged in the region of the ring shape corresponding to the projection of the annular shape of the sealing frame,
The frame includes a shaft center direction and the axial center position of the rotary shaft which is held in the shaft casing is arranged to fit into the axial direction to the axis position of the region of the annular shape wherein the legs are arranged Ru,
Riser cleaning apparatus characterized by. The rising pipe cleaning device according to claim 1, wherein the frame is provided with a fixing means for detachably fixing to the water sealing frame or the rising pipe. The riser pipe cleaning device according to claim 1 or 2, wherein a heat-resistant cover is provided on the outer periphery of the shaft. The rotating shaft and the shaft have a cylindrical shape.
The rising pipe cleaning device according to any one of claims 1 to 3, further comprising an air nozzle for blowing cooling air toward the inside of the rotating shaft.

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