JP2008224063A - Fire brick dismantling device inside of chimney - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire brick dismantling device inside of a chimney capable of smoothly mounting and demounting a dismantling device including an expansible and contractible rod member provided with a fire brick dismantling member at its tip, to a driving portion while exerting its dismantling function. <P>SOLUTION: This fire brick dismantling device 15 inside of the chimney, used by being detachably connected to a driving main body portion 22 used in a state of vertically-movably suspended from a lifting machine 21, is composed of a connection mount 23 and a dismantling device main body 24. The connection mount 23 is composed of a connection mount 25 connected to a rotary connection table 20, a dismantling device supporting mount 26 disposed at a lower part of the connection mount 25 and supporting the dismantling device main body 24, and a pedestal feature frame 27 connecting and integrating the mounts 25, 26 in a state of vertically holding them t a prescribed interval, and used as a leg portion in being installed on the ground. The dismantling device main body 24 is composed of at least a pair of expansible and contractible rod members 29 provided with the fire brick dismantling members 28 at their tips. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a refractory brick dismantling apparatus inside a chimney, and more particularly to a refractory brick dismantling apparatus inside a chimney for disassembling a refractory brick inner cylinder formed inside an outer cylinder of the chimney.

  In recent years, for example, work to remove an aging garbage incinerator has been actively carried out, and along with this, work to dismantle a chimney that is a hollow cylindrical tower-like structure with a high height occurs. Since the chimney is very hot inside, the chimney often has a double structure in which a refractory brick inner cylinder is formed inside to prevent deterioration of the concrete outer cylinder. In some cases, a heat insulating effect can be obtained by forming an air layer by providing a gap between the outer cylinder and the inner cylinder.

  For example, when recycling refractory bricks and concrete after dismantling the chimney, disassembling them in a mixed state will result in the need to separate them later. It is necessary to separate and dismantle concrete in advance. As a method of separation and dismantling, for example, refractory bricks constituting the inner cylinder are dismantled from the top first, dropped into the lower part of the chimney and removed, and then the concrete outer cylinder is dismantled from the upper part and removed It will be done in the procedure.

In addition, the dismantling work of the refractory brick inner cylinder and the concrete outer cylinder is a work at a high place, dust is likely to be scattered during the work, and there is a possibility of contamination by dioxins. Therefore, it is generally difficult to perform by manual work. Therefore, various devices and methods for dismantling refractory bricks and concrete by remotely operating the machine have been developed (see, for example, Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4).
JP 2004-176996 A JP 2005-265338 A Japanese Patent Publication No. 5-5021 JP 2006-68601 A

  On the other hand, the dismantling work of the refractory brick inner cylinder and the dismantling work of the concrete outer cylinder were each performed using separate dismantling devices. For example, for driving these dismantling devices, Since the structure of the drive unit including the power supply device, hydraulic pump, remote control device, etc. has many common parts, the fireproof brick demolition device and the concrete demolition device can be attached to and detached from a single drive unit. The cost can be reduced by simplifying the entire apparatus including the drive unit.

  However, if it takes a lot of work to attach and detach the firebrick demolition device and concrete demolition device to the drive unit at the chimney demolition site, it will be difficult to perform efficient chimney demolition work. A special device is required to enable the device to be smoothly attached to and detached from the drive unit in a state where these dismantling functions can be effectively exhibited.

  In addition, the applicant of the present application uses a weak part of the structure of the inner cylinder configured by stacking the refractory bricks as a refractory brick dismantling device, and uses the structural characteristics to efficiently and smoothly dismantle the refractory bricks. It is intended to be able to carry out, and it expands and contracts in the radial direction along the cross direction of the chimney, and at the tip, it bites into the joint part of the refractory brick and separates the upper and lower bricks A dismantling device comprising at least a pair of telescopic rod-like members provided with a wedge-shaped dismantling member has been proposed (Japanese Patent Application No. 2005-269480). In particular, the dismantling device using such a pair of telescopic rod-like members has an effect on the dismantling function. Development of a technique for smoothly attaching and detaching to / from the drive unit in a state where it can be exhibited in an automated manner is desired.

  The present invention has been made paying attention to such a technical problem, and expands and contracts backward along the cross direction of the chimney, and at least a pair of expansion and contraction with a firebrick demolition member attached to the tip. An object of the present invention is to provide a refractory brick dismantling device inside a chimney that allows a dismantling device including a rod-shaped member to be smoothly attached to and detached from a drive unit in a state where the disassembling function can be effectively exhibited.

  In the present invention, at least a driving power supply device, a hydraulic pump, and a remote control device are mounted above the driving base, and the rotation provided below the driving base is rotatable with respect to the driving base. A firebrick demolition device inside a chimney that is detachably coupled to a drive main body unit that is suspended from a lifting machine and is used so as to be lifted and lowered. And the dismantling device main body, the connecting gantry is connected to and connected to the rotary connecting pedestal, and the dismantling device main body is disposed along the crossing direction of the chimney provided below the connecting gantry The dismantling device support gantry supported by the above, the dismantling device support gantry and the connection gantry are connected and integrated in a state of maintaining a predetermined distance in the vertical direction, and at least three which become the legs when installed on the ground leg The dismantling device main body includes a frame, and includes at least a pair of telescopic rod-like members having a refractory brick dismantling member attached to the distal end thereof while extending and contracting in the radial direction along the transverse direction of the chimney. By providing a firebrick dismantling device inside the chimney, the above object is achieved.

  And as for the firebrick dismantling apparatus inside the chimney of this invention, it is preferable that the said dismantling member is a wedge-shaped member which makes a front-end | tip part bite into the joint part of a refractory brick, and separates an upper and lower brick.

  Further, in the firebrick dismantling apparatus inside the chimney according to the present invention, the dismantling member inserts and locks a hook portion from above into a gap between the concrete outer cylinder and the firebrick inner cylinder, and the firebrick is disassembled. It is preferable that it is a bowl-shaped member which pulls down inside.

  Furthermore, in the firebrick dismantling apparatus inside the chimney of the present invention, it is preferable that the wedge-shaped member and the hook-shaped member are selectively disposed at the distal ends of the at least one pair of telescopic rod-shaped members.

  Furthermore, in the firebrick dismantling device inside the chimney according to the present invention, the predetermined interval held between the dismantling device support frame and the connection frame is dismantled in each expansion / contraction step of the expansion rod member. It is preferable that the distance is set according to the distance from the joint portion where the wedge-shaped member assumed of the brick is encroached to the upper end of the refractory brick.

  In the refractory brick dismantling apparatus in the chimney according to the present invention, it is preferable that a television camera and a lighting fixture for photographing a refractory work state of the refractory brick by the dismantling apparatus main body are attached to the connection base of the connection base.

  According to the firebrick dismantling apparatus inside the chimney according to the present invention, the dismantling apparatus includes at least a pair of telescopic rod-like members that extend back and forth along the transverse direction of the chimney and have a firebrick demolition member attached to the tip. Can be smoothly attached to and detached from the drive unit in a state where the dismantling function can be effectively exhibited.

A firebrick demolition apparatus inside a chimney according to a preferred embodiment of the present invention is a hollow cylinder having a height of, for example, about 45 m as shown in FIG. 1 (a), for example, as a chimney to be demolished in an aging garbage incinerator. When removing the chimney 10 which is a cylindrical tower-like structure, the inner cylinder 12 made of the refractory bricks 11 of the chimney 10 is employed so that it can be separated and disassembled efficiently. That is, as shown in FIGS. 1B and 1C, the chimney 10 is constructed by stacking the refractory bricks 11 with the gaps 14 forming an air layer interposed inside the outer cylinder 13 made of reinforced concrete. It has a double structure provided with a constructed refractory brick inner cylinder 12, and the inner cylinder 12 and the gap 14 can effectively prevent deterioration of the outer cylinder 13 due to the high temperature inside the chimney 10. It is like that. In the present embodiment, the chimney 10 has a shape in which the outer diameter is slightly reduced from the lower part toward the upper part. For example, the outer diameter of the lower end part is 5100 mm, and the outer diameter of the upper end part is The size is about 3680 mm. Accordingly, the outer cylinder 13 has, for example, a lower end portion thickness T ₁ of 350 mm and an upper end portion thickness T ₂ of 150 mm, and the inner cylinder 12 has, for example, a lower end portion thickness t thereof. ₁ is 230 mm, and the thickness t ₂ of the upper end portion is 115 mm.

  When such a chimney 10 simultaneously disassembles the outer cylinder 13 made of reinforced concrete and the inner cylinder 12 made of refractory bricks, it takes a lot of time for sorting work to recycle them. As shown in FIG. 2A, the refractory brick dismantling apparatus 15 removes the inner cylinder 12 in the chimney 10 prior to the dismantling work of the outer cylinder 13, thereby eliminating the need for subsequent separation work. At the same time, it is used to efficiently dismantle the refractory brick 11.

  And, as shown in FIGS. 3A and 3B, the firebrick dismantling device 15 inside the chimney of the present embodiment has at least a driving power supply device 17, a hydraulic pump 18, and a wireless device above the driving stand 16. A steering device (remote control device) 19 is mounted, and a rotary connection base 20 is provided below the driving base 16 so as to be rotatable with respect to the driving base 16, and a lifting machine 21 (see FIG. 2). A firebrick demolition device that is used detachably connected to a drive main body unit 22 that is suspended and used from above, and this firebrick demolition device 15 includes a connection base 23 and a demolition device main body 24. Become. Further, as shown in FIGS. 4A, 4 </ b> B, and 5, the connection base 23 includes a connection base 25 connected to the rotary connection base 20 of the drive main body 22, and a lower part of the connection base 25. The dismantling device support gantry 26 that supports the dismantling device main body 24 arranged in the transverse direction of the chimney 10, and the dismantling device support gantry 26 and the connection gantry 25 are vertically maintained at a predetermined interval. And at least three (four in the present embodiment) pedestal frame 27 that become the legs when installed on the ground. Further, as shown in FIG. 6 and FIGS. 7A and 7B, the dismantling device main body 24 expands and contracts along the transverse direction of the chimney 10 and disassembles the refractory brick 11 at the tip. It includes at least a pair (two pairs in this embodiment) of telescopic rod members 29 to which 28 is attached. 3 (a) and 3 (b) and the connection platform 23 in FIGS. 4 (a) and 4 (b) are depicted in a state viewed from the side direction shifted by 45 ° for convenience.

  In the present embodiment, the drive main body 22 is formed by modifying, for example, a backhoe as a heavy work machine, as described in, for example, Japanese Patent Application Laid-Open No. 2006-68601. The basic structure is constituted by the upper part of this, including the swivel ring, after removal. In other words, a turning ring equipped with a driving power supply device, an engine, a hydraulic pump, an operation chamber, etc., which is diverted as the rotary connection base 20 of the drive main body 22 and is rotated relative to the turning ring. The platform is diverted as the drive platform 16 of the drive body 22 (see FIGS. 3A and 3B). The swivel base is at least for driving by removing the operation room, boom, bucket, etc., and attaching the radio control device 19, the hanging jig 31, etc. while leaving the driving power supply device, hydraulic pump, etc. The power supply device 17, the hydraulic pump 18, and the radio control device 19 are modified to a drive base 16. The drive base 16 together with the rotary connection base 20 using a swivel ring constitutes a drive main body 22 that can be suspended from a lifting machine 21 such as a crawler crane or a tow truck via a suspension jig 31. In addition, since the dismantling of the refractory brick 11 is performed in the chimney 10, the maximum outer diameter of the drive main body 22 is smaller than the inner diameter of the outer cylinder 13 of the chimney 10. In addition, a watering facility can be attached to the drive base 16. The liquid tank of the watering equipment is detachable, and when the firebrick demolition device 15 is attached to the drive base 16 and used, it is preferable to remove the liquid tank and use it in order to make the apparatus as small as possible.

  Further, in the present embodiment, the rotary connection base 20 by the swivel ring is a rotary drive motor (provided on the drive base 16 on the internal gear formed on the inner peripheral surface of the short cylindrical portion 20a constituting the rotary connection base 20). A gear fixed to a rotation shaft (not shown) is engaged from the inside to rotate relative to the drive base 16 by rotation of the rotary drive motor (see Japanese Patent Laid-Open No. 2006-68601). ). The rotary connection base 20 has a lower outer peripheral surface of the short cylindrical portion 20a reinforced by a ribbed annular reinforcing member 20b, and is joined and integrated to the lower end surfaces of the short cylindrical portion 20a and the ribbed annular reinforcing member 20b by welding or the like. A joining plate 20c having an opening at the center is attached.

  In the present embodiment, the rotary connection base 20 is formed with an insertion opening formed by an inner hollow portion of the short tube portion 20a and a central opening portion of the joining plate 20c at a central portion including the rotation center. Via the opening, piping and wiring for connecting the device mounted above the drive base 16 to the firebrick demolition device 15 attached to the drive main body 22 are disposed. Further, when the concrete dismantling device 32 (see FIG. 2B) for disassembling the outer cylinder 13 made of reinforced concrete by exchanging with the refractory brick dismantling device 15 is attached to the joining plate 20c of the rotary connection base 20, the concrete A thick-plate rib-plate-like hanging hardware 33 (see FIGS. 3 (a) and 3 (b)) formed with pin holes for supporting and fixing the dismantling device 32 detachably and firmly is provided so as to protrude downward. It has been.

  As shown in FIG. 2A, the drive main body 22 having the above-described configuration is suspended from the lifting machine 21 via the suspension jig 31 (see FIG. 3) together with the firebrick demolition device 15. While being conveyed above the upper end opening of the chimney 10, it is sequentially inserted into the inside from the upper end opening and used for the dismantling work of the inner cylinder 12 made of refractory bricks. When the inner cylinder 12 is disassembled in advance, the drive main body 22 reattaches the concrete dismantling device 32 with the refractory brick dismantling device 15 on the ground, and reattaches the concrete dismantling device as shown in FIG. While being hung from the lifting machine 21 via the lifting jig 31 together with the device 32, it is transported above the chimney 10, and the reinforced concrete outer cylinder 13 is sequentially dismantled from the upper end of the chimney 10 by the concrete demolition device 32. Served to work.

  And in this embodiment, the firebrick demolition apparatus 15 is comprised by the connection mount frame 23 and the demolition apparatus main body 24 as mentioned above. Further, as shown in FIGS. 4A, 4 </ b> B, and 5, the connection base 23 is connected to the rotary connection base 20 of the drive main body 22, and below the connection base 25. The dismantling device support gantry 26 provided, and the four pedestal frames 27 that connect and disassemble the dismantling device support gantry 26 and the connection gantry 25 in a state of maintaining a predetermined distance in the vertical direction.

  The connection frame 25 of the connection frame 23 is joined and integrated to the upper end of the pedestal frame 27, for example, a connection frame 25a made of H-shaped steel, angle steel, grooved steel, or the like, and the top end of the connection frame 25a. And an upper frame plate 25b joined to form a flat top surface. An upper opening 25c for piping and wiring is formed in the upper frame plate 25b at a position where it overlaps with the opening of the joining plate 20c of the rotary connection base 20 in the central portion. Further, the upper gantry plate 25b is connected to the upper gantry plate 25b when the linking gantry 23 is connected to the drive main body 22 so that the upper gantry plate 25b is superimposed on the lower end surface of the rotary connection pedestal 20 of the drive main body 22. An insertion opening 25d having a vertically long rectangular shape for inserting and arranging the hanging metal 33 for supporting and fixing the concrete dismantling device 32 protruding downward from the joining plate 20c of the table 20 without buffering is provided on the hanging metal 33. A plurality of openings are formed at positions corresponding to.

  Further, in the present embodiment, the connection frame 25a of the connection frame 25 is disposed at a joint portion between one of the four columnar frames 27 and one pair of columnar frames 27 disposed in a diagonal direction. Each pair of connecting rib plates 36 with pin holes protrudes outward and is provided at two locations. When the refractory brick dismantling device 15 is connected and connected to the drive main body portion 22 via the connection stand 23, a pin provided to protrude downward at a position facing the radial direction in the peripheral edge portion of the joining plate 20c of the rotary connection stand 20 The refractory brick dismantling device 15 can be attached to and detached from the drive main body 22 by inserting and arranging the drive portion connecting rib plates 37 with holes between the pair of connecting rib plates 36 and inserting the connecting pins through the pin holes. It becomes possible to connect easily in a state.

  The dismantling device support frame 26 of the connection frame 23 is joined and integrated with an intermediate portion in the vertical direction of the pedestal frame 27, for example, a support frame 26a made of H-shaped steel, angle steel, channel steel, and the like, and the support frame 26a. And an intermediate support plate 26b joined to form a flat bottom surface at the lower end portion. An intermediate opening 26c for piping and wiring is formed in the intermediate support plate 26b at a position where it is disposed so as to overlap with the upper opening 25c of the upper frame plate 25b in the central portion. A hydraulic unit cover 34 is provided on the upper surface of the intermediate support plate 26b so as to be supported by the intermediate support plate 26b. A hydraulic pressure for driving the telescopic rod-like member 29 of the dismantling apparatus body 24 to extend and contract is provided inside the hydraulic unit cover 34. The unit is stored.

  Furthermore, in this embodiment, the support frame 26a of the dismantling device support frame 26 includes an outer peripheral frame portion 38 arranged in a square shape so as to connect, for example, four pedestal frames 27, and a pedestal frame 27. It comprises a pair of cross frame portions 39 arranged along a diagonal direction connecting the corner portions of the outer peripheral frame portions 38 to be joined (see FIG. 5). Further, a pair of first main body hanging brackets 35a projecting downward from the intermediate support plate 26b of the dismantling device support base 26 and having a short projecting length, and a pair of second main body hanging brackets 35b having a long projecting length, It is provided at a position facing each other in the radial direction across the intermediate opening 26c. Here, the pair of first main body hanging brackets 35a has one pair of telescopic rod-shaped members 29 arranged in the upper stage among two pairs of telescopic rod-shaped members 29 disposed in a cross shape in two stages to be described later. Are connected and supported by the pair of second main body hanging brackets 35b.

  In the present embodiment, the support frame 26a is connected and integrated with the connection frame 25a of the connection frame 25 and the support frame 26a of the dismantling device support frame 26 by welding or the like, so as to form a strong frame structure that constitutes the connection frame 23. And a predetermined distance is maintained between the dismantling apparatus support base 26 and the connection base 25 in the vertical direction. Here, the predetermined interval to be held between the dismantling device support gantry 26 and the connection gantry 25 is, for example, the refractory brick 11 of the inner cylinder 12 by the dismantling member 28 of the dismantling device body 24 supported by the dismantling device support gantry 26. At the time of dismantling, the dismantling pieces and the crushing pieces of the dismantling firebrick 11 can be dropped downward without colliding with the connection frame 25. The predetermined interval held between the dismantling device support gantry 26 and the connection gantry 25 is, for example, 8 to 8 depending on the number of design layers of the refractory brick 11 to be dismantled in each expansion and contraction process of the expansion rod member 29. It is preferable to set as an interval of 10 layers (56 to 70 cm). In addition, the predetermined interval held between the dismantling device support frame 26 and the connection frame 25 is a joint portion that bites in the assumed wedge-shaped member 28a of the refractory brick 11 disassembled in each expansion / contraction process of the expansion / contraction rod-shaped member 29. It is preferable to set according to the distance from 41a to the upper end 12a of the refractory brick 11 (refer FIG. 8). In addition, each expansion | extension process of the expansion-contraction rod-shaped member 29 in the said description is extended from the state which contracted the expansion-contraction rod-shaped member 29, for example, when the wedge-shaped member 28a mentioned later is used as the disassembly member 28, and the joint part of the firebrick 11 41 (refer FIG. 8) means each process until the wedge-shaped member 28a bites in and the fire brick 11 above the joint part 41 which the wedge-shaped member 28a bites in is dismantled.

  By maintaining such a predetermined distance between the dismantling device support base 26 and the connection base 25, the dismantling of the fireproof brick 11 that has been dismantled without damaging the equipment attached to the connection base 25 or the driving base 16. It is possible to smoothly drop the dismantled pieces, crushed pieces, and the like downward in the chimney 10. This also makes it possible to stably attach a TV camera and a lighting fixture for photographing the state of the dismantling work of the refractory bricks by the dismantling device main body 24 to the connecting stand 25 of the connecting stand 23. It is possible to effectively shoot the work situation without being obstructed by the drive main body 22 from the portion directly above the dismantling apparatus main body 24 that is easy to grasp.

  As shown in FIG. 6 and FIGS. 7A and 7B, the dismantling device main body 24 that constitutes the refractory brick disassembling device 15 together with the connecting frame 23 is at least a pair in which the dismantling member 28 of the refractory brick 11 is attached to the tip. It consists of two pairs of telescopic rod-like members 29 in this embodiment. The expansion / contraction rod-shaped member 29 is driven and controlled, for example, via a hydraulic cylinder 40, and the expansion / contraction rod-shaped member 29 is formed at the tip of the joint 41 (of the refractory brick 11 as a dismantling member 28). A wedge-shaped member 28a for biting into FIG. 8) is provided. Furthermore, each pair of telescopic rod-shaped members 29 is connected and integrated through the first connecting band member 42a and the second connecting band member 42b in a state where the wedge-shaped members 28a are arranged in parallel while being arranged on the opposite side. As a result, when suspended in the chimney 10 together with the connecting frame 23, it extends and contracts in the substantially radial direction along the transverse direction of the chimney 10.

  Each pair of telescopic rod-shaped members 29 is arranged in a cross shape that intersects perpendicularly with each other, and is arranged in two stages. One pair of telescopic rod-like members 29 that are connected and integrated by the first connecting band member 42a and disposed in the upper stage are disassembled from the first connecting rib 43a that is erected and arranged at the center of the first connecting band member 42a. By attaching to the first main body suspension fitting 35a (see FIG. 4) protruding downward from the intermediate support plate 26b of the support base 26, the support base 26 is attached so as to be suspended from the dismantling apparatus support base 26. The other pair of telescopic rod-shaped members 29 that are connected and integrated by the second connection band member 42b and disposed at the lower stage are disassembled from the second connection rib 43b that is erected and arranged at the center of the second connection band member 42b. It is attached so as to be suspended from the dismantling device support frame 26 by being connected to a second main body suspension fitting 35b (see FIG. 4) protruding downward from the intermediate support plate 26b of the support frame 26.

  Furthermore, in the present embodiment, auxiliary leg portions 44a and 44b are provided at the end of each telescopic rod-shaped member 29 opposite to the wedge-shaped member 28a and bent downward from each telescopic rod-shaped member 29. When the refractory brick dismantling device 15 is installed on the ground, the auxiliary leg portions 44a and 44b are grounded to the ground surface together with the lower ends of the pedestal frames 27, so that the refractory brick dismantling device 15 is more stable. It can be temporarily placed (see FIG. 3). As will be described later, when the wedge-shaped member 28a and the hook-shaped member 28b are selectively disposed at the tip of the telescopic rod-shaped member 29 as the dismantling member 28 (see FIG. 12), such replacement work is performed. It becomes possible to perform in a more stable state.

  And the firebrick demolition apparatus 15 of this embodiment provided with the above-mentioned structure was connected with the drive main-body part 22, and was suspended from the lifting machine 21 with the drive main-body part 22, as shown to Fig.2 (a). In the state, it is conveyed above the upper end opening of the chimney 10, inserted into the inside from the upper end opening sequentially, and the dismantling work of the refractory brick 11 is performed, for example, by remote operation from the ground as follows. That is, as shown in FIGS. 8A and 8B, the refractory bricks 11 are stacked in a state where the end surfaces of the bricks 11 are shifted by half in the circumferential direction between the layers 45 adjacent to each other in the vertical direction. A telescopic rod-like member 29 having a wedge-like member 28a for inserting a joint at the tip is arranged below the upper end 12a of the inner cylinder 12 with a plurality of layers sandwiched therebetween, and substantially radially along the transverse direction of the chimney 10. Extend. Thereafter, the telescopic rod-shaped member 29 is extended to cause the wedge-shaped member 28a to bite into the joint portion 41 of the refractory brick 11, thereby forming the joint portion 41a (hereinafter referred to as "biting joint portion") into which the wedge-shaped member 28a has bitten. The refractory bricks 11 are disassembled while lifting the refractory bricks 11 in the upper layer from the above-mentioned bite joints 41a in a stepped manner through the joints 41 on both sides of the biting joints 41a.

  More specifically, as shown in FIGS. 9A to 9E, from the state in which each telescopic bar member 29 is contracted (see FIG. 9A), each telescopic bar member 29 is extended. The wedge-shaped member 28a is brought into contact with the inner surface of the refractory brick 11 (see FIG. 9B). From the state in which the tip of the wedge-shaped member 28 a is in contact with the inner surface of the refractory brick 11, the stretchable rod-shaped member 29 is cut into a bite joint so that the extension amount thereof is preferably a length corresponding to the thickness of the refractory brick 11. By extending toward 41a, the wedge-shaped member 28a is bitten so as to penetrate the biting joint 41a (see FIG. 9C). As a result, as shown in FIG. 8 (b), the refractory bricks 11 above the biting joint 41a are separated into a stepped shape through the joints 41 on both sides of the biting joint 41a as a brick block 46. lift. The wedge-shaped member 28a may be shifted up and down from the position of the biting joint 41a and the tip may be in contact with the refractory brick 11 itself, but the tip of the wedge-shaped member 28a may be in contact with the refractory brick 11. As it penetrates, the wedge-shaped member 28a is guided to bite into the biting joint 41a located above or below.

  In this way, when the brick block 46 separated in a staircase shape is lifted so as to be pushed up and moved slightly upward, the entire balance of the brick block 46 is lost and falls down into the chimney 10 inside. The brick block 46 falls downward while being separated into the individual refractory bricks 11. When the refractory brick 11 falls in this way, the hydraulic cylinder 40 is contracted until the distance between the tips of the wedge-shaped members 28a of each pair of telescopic rod-shaped members 29 becomes smaller than the inner diameter of the inner cylinder 12 at that position. After that, the refractory brick dismantling device 15 is moved downward together with the drive main body portion 22 to the next position sandwiching a plurality of layers in which the wedge-shaped member 28a is bitten into the biting joint portion 41a.

  Even if the brick block 46 moves slightly upward, the overall balance may not be lost. Even if the overall balance of the brick block 46 is lost, if the brick block 46 is inclined outward, the brick block 46 may not fall down due to leaning against the outer cylinder 13. In such a case, when the brick block 46 is pulled up together with the brick block 46 (see FIG. 9D) and the brick block 46 is out of balance and falls downward, each pair of telescopic rods After the hydraulic cylinder 40 is contracted until the distance between the tips of the wedge-shaped members 28a of the member 29 becomes smaller than the inner diameter of the inner cylinder 12, the fire brick demolition device 15 is moved to the position of the next biting joint 41a sandwiched between a plurality of layers. Is moved downward together with the drive main body 22.

  Further, if the brick block 46 does not fall down even when the brick block 46 of the refractory brick 11 is pulled up, the distance between the tips of the wedge-shaped members 28a of each pair of telescopic rod-shaped members 29 is the inner cylinder. The hydraulic cylinder 40 is contracted until it becomes smaller than the inner diameter of 12 (see FIG. 9E). Thereby, the brick block 46 collides with the upper end 12a of the inner cylinder 12 left below, and then falls downward while being separated into the individual refractory bricks 11.

  And according to this embodiment, while using the joint part 41 which is a weak part on the structure of the inner cylinder 12 comprised by stacking the firebrick 11 by these, the joint part 41 isolate | separates in step shape. Utilizing the structural characteristics, the fire brick 11 can be efficiently and smoothly disassembled as a block-like brick block 46, and the fire brick 11 is pushed up by the wedge-shaped member 28a to reliably cut the joint portion 41. Therefore, the refractory bricks 11 can be efficiently disassembled even in the lower part of the chimney 10 where the inner cylinder 12 is thick.

  Further, in this embodiment, as shown in FIG. 10, as the dismantling member 28, a hook-like member 28 b having a hook portion 45 bent downward at the tip portion is attached to the telescopic rod-like member 29 instead of the wedge-like member 28 a. The dismantling device main body 24 can also be used. In such a dismantling device main body 24, as shown in FIG. 11, a hook portion 45 is inserted and locked into the gap 14 between the concrete outer cylinder 13 and the refractory brick inner cylinder 12 from above, and the fire resistance By pulling the brick 11 inward, the inner cylinder 12 can be disassembled sequentially from the top to the bottom.

  Furthermore, in this embodiment, the wedge-shaped member 28a and the hook-shaped member 28b can be selectively disposed at the distal ends of the pair of telescopic rod-shaped members 29. As means for selectively disposing the wedge-shaped member 28a and the hook-shaped member 28b, for example, as shown in FIGS. 12A and 12B, the hook-shaped member 28b is expanded and contracted as a cover body covering the wedge-shaped member 28a. One of the wedge-shaped member 28a and the flange-shaped member 28b is attached to the joining flange portion 29a at the distal end of the rod-shaped member 29 (see FIG. 12A) or the joining flange portion 29a at the distal end of the telescopic rod-shaped member 29. A method of removing and joining the other (see FIG. 12B) or the like can be employed.

  By disposing the wedge-shaped member 28a and the hook-shaped member 28b selectively at the tip of the telescopic rod-shaped member 29, for example, as shown in FIGS. 13 (a) and 13 (b), the wedge-shaped member 28a is disassembled. The upper end of the chimney 10 (see FIG. 13 (a)) and the outer cylinder 13 are obsolete and the brick 11 is disassembled by the wedge-shaped member 28a. At the upper end of the chimney 10 that easily breaks the cylinder 13 and drops it to the outside, the inner cylinder 12 is disassembled using the hook-shaped member 28b, and the inner cylinder 12 is used for the other parts using the hook-shaped member 28b. By performing this disassembly work, it becomes possible to perform a safer and more efficient disassembly work of the inner cylinder.

  And according to the refractory brick dismantling apparatus 15 of this embodiment provided with the above-mentioned structure, while extending back and forth along the transverse direction of the chimney 10, at least the dismantling member 18 of the refractory brick 11 is attached to the tip. The disassembly device 15 including the pair of telescopic rod-like members 29 can be smoothly attached to and detached from the drive main body 22 in a state where the disassembly function can be effectively exhibited.

  That is, according to the present embodiment, the refractory brick dismantling device 15 includes the connecting gantry 23 and the dismantling device main body 24, and the connecting gantry 23 is connected and connected to the rotary connection base 20 of the drive main body 22. The dismantling device support gantry 26 that is provided below the connection gantry 25 and supports the dismantling device main body 24 in a state of being disposed along the transverse direction of the chimney 10, and the dismantling device support gantry 26 and the connection gantry 25 are moved up and down. And at least three (four in the present embodiment) pedestal frame 27 that serve as legs when installed on the ground. Thus, the firebrick demolition device 15 can be smoothly attached to and detached from the rotary connection base 20 of the drive main body 22 in a replaceable state. Further, the dismantling device support gantry 26 that supports the dismantling device main body 24 and the connection gantry 25 are connected and integrated in a state where a predetermined interval is maintained up and down via the pedestal frame 27, so that the pedestal frame 27 is attached to the connection stand 25 or the drive stand 16 while supporting the brick block 46 without tilting by the brick block 46 or the like that has been approached by dismantling or causing trouble in rotation. For example, the function of the dismantling device main body 24 is exhibited and the inner cylinder is efficiently dismantled without damaging equipment such as a TV camera or a lighting fixture with dismantling pieces or shattering pieces of the refractory brick 11. Is possible.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the drive main body portion does not necessarily need to be formed by modifying the back fork, and the dismantling device main body does not necessarily need to have two pairs of telescopic rod-like members arranged in a cross shape in two stages. .

(A) is a perspective view which illustrates the chimney in which a refractory brick is demolished by the refractory brick dismantling apparatus inside the chimney according to a preferred embodiment of the present invention, and (b) is an upper portion along A-A in (a). Sectional drawing and (c) are lower sectional views along BB of (a). (A) is a schematic cross-sectional view illustrating a situation in which an inner cylinder is dismantled using a refractory brick dismantling device, and (b) is an abbreviation describing a situation in which an outer cylinder is dismantled using a concrete dismantling device. It is sectional drawing. (A) is a side view which shows the state which connected the firebrick demolition apparatus to the drive main-body part, (b) is the side view seen from the direction which shifted | deviated 90 degrees from the state of (a). (A) is the side view and top view explaining the structure of a connection stand, (b) is the side view and top view seen from the direction which shifted | deviated 90 degrees from the state of (a). It is a top view along CC of FIG.4 (b). It is a top view of a dismantling apparatus main body. The side view explaining the structure of a dismantling apparatus main body, (b) is the side view and top view seen from the direction which shifted | deviated 90 degrees from the state of (a). (A) is principal part sectional drawing explaining the condition which dismantles a refractory brick using a demolition apparatus main body, (b) is the front view which looked at the inner cylinder explaining the condition which dismantles a refractory brick from the inner side It is. (A)-(e) is principal part sectional drawing explaining the work procedure which dismantles a refractory brick. It is a principal part side view of the dismantling apparatus main body which attached the bowl-shaped member as a dismantling member. It is principal part sectional drawing explaining the operation | movement procedure which dismantles a refractory brick with the dismantling apparatus main body which attached the bowl-shaped member as a dismantling member. (A), (b) is a principal part side view explaining the method of arrange | positioning a wedge-shaped member and a bowl-shaped member selectively as a dismantling member. (A), (b) is principal part sectional drawing explaining the subject at the time of using a wedge-shaped member as a dismantling member.

Explanation of symbols

10 Chimney 11 Refractory brick 12 Inner cylinder 13 Outer cylinder 14 Crevice (air layer)
15 Refractory brick demolishing device 16 Drive base 20 Rotating connection base 21 Lifting machine 22 Drive body part 23 Drive base part 23 Linking base 24 Demolition apparatus body 25 Connection base 25a Connection base frame 25b Upper base plate 26 Demolition device support base 26a Support base frame 26b Intermediate support Plate 27 Pillar frame 28 Demolition member 28a Wedge-like member 28b Cage-like member 29 Telescopic rod-like member 32 Concrete dismantling device 36 Connection rib plate 37 Drive part connection rib plate 40 Hydraulic cylinder 41 Joint part 41a Biting joint part 46 Brick block

Claims (6)

A power supply device for driving, a hydraulic pump, and a remote control device are mounted above the drive base, and a rotary connection base provided so as to be rotatable with respect to the drive base is provided below the drive base. , A firebrick demolition device inside a chimney that is detachably connected to a drive main body unit that is suspended and used from a lifting machine.
The refractory brick dismantling device is composed of a connecting gantry and a dismantling device main body,
The connecting stand includes a connecting stand connected to the rotary connecting stand, a dismantling device support stand provided below the connecting stand and supporting the dismantling device main body in a state of being arranged along a crossing direction of the chimney. The dismantling device support frame and the connection frame are connected and integrated in a state of maintaining a predetermined distance in the vertical direction, and includes at least three pedestal frames that serve as legs when installed on the ground.
The dismantling device main body is a refractory brick dismantling device inside a chimney, which includes at least a pair of telescopic rod-like members attached to the tip of the dismantling member of the refractory brick, while extending and contracting in the transverse direction of the chimney.   The refractory brick dismantling apparatus inside a chimney according to claim 1, wherein the dismantling member is a wedge-shaped member that bites the tip portion into a joint portion of the refractory brick to separate the upper and lower bricks.   The dismantling member is a bowl-shaped member that inserts and locks a hook portion from above into a gap between a concrete outer cylinder and a refractory brick inner cylinder and pulls the refractory brick inward. Refractory brick dismantling device inside the chimney described.   The firebrick dismantling apparatus in a chimney according to claim 1, wherein the wedge-shaped member and the bowl-shaped member are selectively disposed at the tip ends of the at least one pair of telescopic rod-shaped members.   The predetermined interval held between the dismantling device support frame and the connection frame is refractory from a joint portion that bites the assumed wedge-shaped member of the refractory brick disassembled in each expansion and contraction step of the expansion rod member. The firebrick dismantling apparatus inside a chimney according to any one of claims 1 to 4, which is set according to the distance to the upper end of the brick.   A firebrick dismantling device inside a chimney according to any one of claims 1 to 5, wherein a television camera and a lighting fixture for photographing the dismantling work status of the refractory brick by the dismantling device main body are attached to the connection stand of the connection stand. .

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