JP2009091085A - Deposit treatment equipment and deposit treatment method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To isolate a working space in an elevator shaft from a space on an elevator hall side regardless of the state of an opening/closing door provided in a landing entrance/exit. <P>SOLUTION: When treating deposit in the elevator shaft EVS, this equipment is mounted to prevent the scattering of the deposit. The equipment is provided with a partitioning member 91 for isolating and sealing a space SS including the landing entrance/exit 23a of an elevator from a space at the elevator hall EVH side by surrounding the whole of the landing entrance/exit 23a from the elevator hall EVH side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a deposit processing facility and a deposit processing method used when removing deposits such as asbestos from an elevator shaft.

  An elevator equipped in a building is usually provided with a vertically long internal space (hoistway) called an elevator shaft, and a car is configured to move up and down in the elevator shaft.

  In this elevator shaft, asbestos that was constructed for the purpose of fire-resistant coating of steel frames in the old days may still remain attached to the steel frame as it is. It is necessary to perform detoxification treatment such as removal as soon as possible.

Here, as a method for removing the deposits in the elevator shaft, for example, Patent Document 1 is disclosed. However, this deposit is cotton dust, not asbestos. That is, at present, no specific method for treating asbestos in the elevator shaft is disclosed.
JP2007-145448

  By the way, generally, when processing asbestos in a building, it is obliged to form a work space that is isolated and sealed by a curing sheet or the like, and to perform the processing work in that space.

  This is not an exception when processing asbestos in the elevator shaft. In that case, a work space is defined in the elevator shaft, and the work space is isolated and sealed. In that case, it is conceivable that the landing doorway of each floor of the elevator is closed by covering the gaps at various places with a curing sheet or the like after the door of the landing doorway is fully closed.

  However, when processing asbestos covered with fireproof on members around the door, such as the three-way frame of an elevator, it is necessary to fully open the door or remove it from the elevator. The interior of the elevator shaft communicated with the elevator hall via the landing entrance and exit, and the interior of the elevator shaft could not be isolated and sealed.

  The present invention has been made in view of such a conventional problem, and it is possible to isolate the work space partitioned in the elevator shaft from the space on the elevator hall side regardless of the state of the open / close door provided at the landing doorway. An object of the present invention is to provide a possible deposit processing equipment and a deposit processing method.

In order to achieve such an object, the deposit treatment facility according to claim 1 is:
When processing the deposits in the elevator shaft, it is installed to prevent the deposits from scattering,
A partition member is provided that isolates and seals the space including the landing doorway from the space on the elevator hall side by enclosing the entire landing doorway of the elevator from the elevator hall side.
According to the first aspect of the present invention, the partition entrance surrounds the elevator entrance / exit from the elevator hall side, and the space including the entrance / exit is isolated from the elevator hall side space. Therefore, the work space for the processing provided in the elevator shaft can be reliably isolated from the space on the elevator hall side.

Further, since the partition member is provided on the elevator hall side and not on the elevator shaft side, there is no interference when processing the asbestos around the opening / closing door in the elevator shaft. Work can be done promptly.
Furthermore, since the landing entrance is surrounded from a relatively wide elevator hall, the partition member can be easily installed.

The invention shown in claim 2 is the deposit processing equipment according to claim 1,
The partition member includes a pair of side panels that are erected on both the left and right sides of the landing entrance.
According to the second aspect of the present invention, since the side panel is used, the space including the landing doorway can be formed firmly.

The invention described in claim 3 is the deposit processing equipment according to claim 2,
The partition member includes an upper surface panel that has both end edges spanned between upper end edges of the pair of side panels and is airtightly fixed to the upper end edges.
According to the third aspect of the present invention, the upper panel serves as the ceiling of the space including the landing doorway, so that even if the ceiling of the elevator hall is high, the space can be reliably secured from the space on the elevator hall side without any inconvenience. Can be isolated.

Invention of Claim 4 is the deposit | attachment processing equipment of Claim 2 or 3,
The partition member is provided with a front panel that is erected opposite to the landing doorway, has both end edges spanned between the pair of side panels, and is airtightly fixed at the both end edges. And
According to the fourth aspect of the present invention, since the front panel is a front wall of a space including the landing entrance, the wall surface on the elevator hall side facing the landing entrance is separated from the landing entrance. However, the space can be reliably isolated from the space on the elevator hall side.

The invention shown in claim 5 is the deposit processing equipment according to any one of claims 1 to 4,
By collecting the foreign matter in the air by passing the air sucked from the space including the landing entrance through the air inlet through the filter, and exhausting the air after passing through the filter to the outside of the space, A dust collector that lowers the pressure in the space to a pressure outside the space is provided.
According to the fifth aspect of the present invention, the dust collector collects foreign matters such as deposits in the space, and the atmospheric pressure in the space is made lower than the atmospheric pressure outside the space. Therefore, even when a gap is unintentionally formed in the connection of the partition member or the like, the leakage of foreign matter from the gap to the external space is effectively suppressed, and the space including the landing doorway has a high altitude. Maintained in a tightly sealed and isolated state.

The invention described in claim 6 is the deposit processing equipment according to claim 5,
The treatment of the deposit is a process of peeling off the deposit by spraying dry ice particles toward the deposit and causing them to collide.
The intake port of the dust collector is arranged at a lower part in a space including the landing doorway.
According to the sixth aspect of the present invention, carbon dioxide gas generated by sublimation of dry ice particles accumulates in the lower part of the space, and the intake port of the dust collector is disposed in the lower part. Therefore, since the generated carbon dioxide gas is quickly exhausted from the space, an operator can safely perform the processing operation in the space.

The invention shown in claim 7 is a deposit processing method characterized in that deposits in the elevator shaft are processed using the deposit processing equipment according to any one of claims 1 to 6.
According to the seventh aspect of the present invention, the same effects as those of the first to sixth aspects can be obtained.

The invention described in claim 8 is the deposit processing method according to claim 7,
The process is performed in a state where the open / close door provided at the landing entrance is fully opened or removed.
According to the eighth aspect of the present invention, the opening / closing door, which can be an obstacle in the treatment of deposits around the opening / closing door, is in a fully opened state or a removed state. It becomes easy to process the deposits in the surrounding area.

The invention described in claim 9 is the deposit processing method according to claim 7 or 8,
A work space for performing the processing is defined in the elevator shaft,
Of the landing entrances provided in the elevator shaft, all the landing entrances located in the work space are surrounded by the partition member.
According to the ninth aspect of the present invention, the work space is reliably isolated and sealed from the space on the elevator hall side, and the sealing performance of the work space is improved.
In addition, a partition member is provided so as to surround only the landing doorway located in the work space, and no landing doorway located outside the work space is provided, so a partition member is prepared for the total number of landing doorways. Cost savings. Incidentally, since the landing doorway outside the work space does not communicate with the work space in the first place, even if it is not enclosed by a partition member, the deposits will not scatter to the elevator hall with the treatment.

  According to the deposit processing facility and the deposit processing method according to the present invention, the interior of the elevator shaft is isolated from the space on the elevator hall side regardless of the state of the existing opening / closing doors provided at the landing entrance.

1A and 1B are a side sectional view and a plane sectional view (BB sectional view in FIG. 1A) of an elevator EV to which the deposit treatment facility and the method of the present embodiment are applied. FIG. 1C is a perspective view of the landing entrance 23a of the elevator EV from the elevator hall EVH side.
This deposit treatment facility is used when detoxifying treatment such as removal is performed on asbestos previously sprayed as a fireproof coating on a steel frame or the like in the elevator shaft EVS. In the following description, as shown in the figure, the three directions orthogonal to each other are referred to as the vertical direction (vertical direction), the horizontal direction (horizontal direction), and the front-rear direction (horizontal direction), respectively.

=== About Elevator EV ===
The elevator EV includes an elevator shaft EVS partitioned in a part of a building BLDG such as a building, a car 13 guided so as to be able to move up and down in the elevator shaft EVS, and a machine room MR above the elevator shaft EVS. And a hoisting machine 19 that moves up and down while suspending the car 13 by a suspension rope R having a counterweight W.

  The elevator shaft EVS is a rectangular parallelepiped space that is long in the vertical direction. Specifically, the steel beam 21a and the steel column 21b are assembled in a substantially rectangular parallelepiped shape that is long in the vertical direction to construct the column beam frame 21 of the elevator shaft EVS, and between the steel beams 21a and 21a adjacent to each other vertically. A concrete panel 23 such as an ALC (aerated concrete) plate is disposed, whereby the side wall 23 of the elevator shaft EVS is formed to surround the front, rear, left and right sides. In addition, a ceiling portion 26a and a floor portion 26b are formed at the upper end portion and the lower end portion of the four side walls 23, respectively, so that the elevator shaft EVS is generally closed in all six directions, up, down, front, rear, left and right. It is an almost closed space.

  The front side wall 23 of the four side walls 23 is formed with an opening 23a for the elevator EV corresponding to each floor of the building BLDG, and slides left and right at each landing 23a. An opening / closing door 25 is provided. Therefore, when the door 25 is opened in a state where there is no car 13, the interior of the elevator shaft EVS is in communication with the elevator hall EVH that is a space on the building BLDG side. Incidentally, at each landing entrance 23a, a steel three-way frame 24 surrounding the landing entrance 23a from the left, right, and upper sides is arranged. As shown in FIG. 1C, the three-way frame 24 includes a pair of left and right collar frames 24a and 24a, and an upper frame 24b that spans the upper ends of the collar frames 24a and 24a.

  By the way, as can be seen from the above, generally, the steel beam 21a of the column beam frame 21 and the steel frame of the three-way frame 24 are partially exposed in the elevator shaft EVS. Further, depending on the elevator EV, the steel column 21b is also exposed, and further, a steel brace (not shown) is stretched over the column beam frame 21 on the inner side of the side wall 23 in some cases. And for such steel exposed parts, fireproof coating is indispensable under the Building Standards Act, and asbestos has been used as the material before. Therefore, asbestos may still be exposed in the existing elevator shaft EVS.

  For such asbestos, for example, a detoxification process is performed in conjunction with the facility renewal work for the existing elevator EV. This detoxification treatment includes removal treatment such as peeling off asbestos, confinement treatment that hardens the surface of the application site by chemical application, etc., and contains asbestos on the spot, as well as the asbestos adhesion site with a plate material, etc. For example, an enclosing process for enclosing the frame so as not to be exposed to the outside.

  In any processing, it is obliged to isolate and seal the working space WS so that asbestos does not scatter around.

  For this reason, when processing the asbestos in the elevator shaft EVS, the work space WS in the elevator shaft EVS is isolated and sealed. At that time, with regard to the landing entrance 23a of each floor of the elevator EV, it is conceivable that the opening / closing door 25 of the landing entrance 23a is fully closed and then the gaps at each place are covered with a curing sheet or the like.

  However, when processing fireproof covering asbestos around the opening and closing door 25 represented by the three-way frame 24, the opening and closing is performed to eliminate the state where the surrounding portion is hidden behind the opening and closing door 25. The door 25 needs to be fully opened or removed from the elevator EV. In this case, the work space WS in the elevator shaft EVS communicates with the elevator hall EVH via the landing entrance 23a, and the work space WS is isolated. It becomes impossible to seal.

  Therefore, in the deposit processing facility and the deposit processing method of the present embodiment described below, the elevator shaft is surrounded by the hall-side partition member 91 described later, thereby enclosing the elevator shaft EVa from the elevator hall EVH side. The work space WS partitioned in the EVS is isolated and sealed from the space on the elevator hall EVH side.

=== About the deposit processing equipment and the method according to the present embodiment ===
<<< Adherent treatment equipment >>>
FIG. 2A is a perspective view schematically showing the deposit treatment facility according to the present embodiment, and FIG. 2B is a side sectional view of the deposit treatment facility. In FIG. 2A, only the contour lines of the elevator shaft EVS and the machine room MR are shown by a two-dot chain line and a three-dot chain line, respectively, and the side wall 23 is shown through.

  In this example, it is assumed that the asbestos processing work is performed in conjunction with the equipment update work for the elevator EV. Therefore, the elevator car 13 is already removed from the elevator shaft EVS so that the elevator car 13 can be replaced with a new one, and the elevator shaft EVS has no car 13.

  As shown in FIG. 2A and FIG. 2B, the deposit processing facility includes shaft partition members 51 a and 51 b that divide the interior of the elevator shaft EVS up and down to hermetically divide the work space WS, and a landing located in the work space WS. A door-side partition member 91 that surrounds the entrance / exit 23a from the elevator hall EVH side and isolates the work space WS from the space on the elevator hall EVH side, and a dust collector that sucks air in the work space WS to ventilate the work space WS 61 (FIG. 2B), a work gondola 71 that can be lifted up and down by a suspension wire 73 suspended from the ceiling portion 26a of the elevator shaft EVS, and on which an operator can ride, and dry ice particles to which asbestos is attached A dry ice blasting device (not shown) that removes asbestos by spraying toward It is provided.

(1) Shaft inner partition members 51a and 51b
3A and 3B are explanatory views of the shaft inner partition members 51a and 51b. FIG. 3A shows a perspective view, and FIG. 3B shows a front sectional view. In FIG. 3A, only the contour lines of the elevator shaft EVS and the machine room MR are shown by a two-dot chain line and a three-dot chain line, respectively, and the side wall 23 is shown through.

  The shaft inner partition members 51a and 51b are, for example, arranged in pairs above and below, and the work space WS is hermetically partitioned between the upper and lower partition members 51a and 51b. Here, the work space WS corresponding to the height of approximately the second floor is sealed, but the size of the work space WS is appropriately determined according to the exhaust capacity of the dust collector 61, the number of installed units, and the like. In addition, when the work space WS is partitioned at the upper end portion or the lower end portion of the elevator shaft EVS, when the ceiling portion 26a or the floor portion 26b of the elevator shaft EVS can be used instead of the shaft partition members 51a, 51b, The partition member 51a or the lower partition member 51b can be omitted as appropriate.

  The pair of upper and lower partition members 51a and 51b have substantially the same structure, and as shown in FIG. 3B, both end portions 53a and 53a are pressed against and fixed to a pair of opposite side walls 23 and 23 of the elevator shaft EVS. A pair of horizontal front and rear support bars 53, a reinforcing sheet 55 supported by the support bars 53 with a string 54 and the like and extending in the horizontal direction, and adhesively fixed with an adhesive tape 56 and the like while being in surface contact with the reinforcing sheet 55 And an airtight sheet 57 extending in the horizontal direction. Then, the outer peripheral edge of the airtight sheet 57 is tightly fixed to the four side walls 23 on the front, rear, left, and right sides of the elevator shaft EVS with an adhesive tape 56 or the like, so that the work space WS is highly sealed. Partitioned into states. Here, since the airtight sheet 57 of each of the upper and lower partition members 51a and 51b is bent so that the distal end portion of the outer peripheral edge thereof faces the work space WS side, The operator can securely fix the outer peripheral edge of the airtight sheet 57 to the side wall 23.

  The support rod 53 includes, for example, press contact close-contact portions 53a such as suction cups at both ends in the longitudinal direction, and the press contact close-contact portions 53a can be extended and retracted in the longitudinal direction by a feed screw mechanism 53b or the like. An example is a rod member. Examples of the reinforcing sheet 55 include a tent fabric or nonwoven fabric, a PET (polyethylene terephthalate) sheet, and the like, and examples of the airtight sheet 57 include a polyethylene sheet and a PET sheet.

  As shown in FIG. 3A, the upper partition member 51a among the pair of upper and lower shaft partition members 51a and 51b is provided with a pair of hole members 58 for passing the suspension wire 73 of the work gondola 71 up and down. Yes. That is, as shown in FIG. 4, the reinforcing sheet 55 and the airtight sheet 57 can be divided at positions corresponding to the hole members 58, respectively, and the hole members 58 are sandwiched between the divided positions. On the other hand, the divided pieces 55a, 55a, 57a, 57a of the reinforcing sheet 55 and the airtight sheet 57 are connected to the hole member 58 by connecting them with an adhesive tape or the like. Here, each of the pair of hole members 58 includes a pair of pipe divided bodies 58a formed by dividing the pipe body 58, in which the horizontal flange portion 58b extends from the outer peripheral surface, into two along the tube axis direction. Then, in a state where the work gondola 71 is suspended, the pair of pipe split bodies 58a and 58a are overlapped so that the inner peripheral surfaces thereof face each other so as to cover the suspension wire 73 from the side, and are joined by an adhesive tape or the like. At the same time, the split pieces 55a, 55a, 57a, 57a of the reinforcing sheet 55 and the airtight sheet 57 are overlapped with each other and connected with an adhesive tape or the like to the horizontal flange portion 58b, whereby the suspension wire 73 is attached. The partition member 51a can be attached without any problem even under existing conditions. Incidentally, a closure member (not shown) such as elastic rubber that is in close contact with the suspension wire 73 and fills the gap with the suspension wire 73 is fixed to the inner peripheral surface of the pipe split body 58a.

(2) Hall side partition member 91
5A to 5D are explanatory views of the hole-side partition member 91. FIG. 5A shows a perspective view seen from the elevator hall EVH side, FIG. 5B shows a side sectional view, FIG. 5C shows a plan sectional view, and FIG. 5D shows a front sectional view.

  As schematically shown in FIG. 5A, the hall-side partition member 91 surrounds the entire hall entrance / exit 23a from the elevator hall EVH side, so that the work space WS in the elevator shaft EVS is separated from the hall entrance / exit 23a. Regardless of the state of the open / close door 25, it is surely isolated from the space on the elevator hall EVH side. 5B to 5D, the opening / closing door 25 is removed.

  Further, in this example, the hall-side partition member 91 is, with respect to the landing entrance 23a facing the work space WS (located in the work space WS), among the plurality of landing entrances 23a provided in the elevator EV. (See FIGS. 2A and 2B). Therefore, every time the work space WS moves in the vertical direction, the hall-side partition members 91 are also moved to the corresponding landing entrances 23a. In this way, the halls are divided into the total number of landing entrances 23a. It is not necessary to prepare the side partition member 91, and the cost can be reduced.

  As shown in FIGS. 5A to 5D, the hall-side partition member 91 is opposed to, for example, a pair of left and right rectangular side panels 92 and 92 erected on both the left and right sides of the landing entrance 23 a and the front of the landing entrance 23 a. And a rectangular front panel 94 whose left and right end edges are connected and fixed to the front end edges of the pair of side panels 92 and 92, and left and right ends of the pair of side panels 92 and 92, respectively. A rectangular upper surface panel 96 is provided that has both end edges spanned and connected and fixed, and a front end edge connected and fixed to the upper end edge of the front panel 94. The panels 92, 92, 94, 96 and the floor B of the elevator hall EVH surround the space in the vicinity of the landing entrance 23a from the top, bottom, left, right, and front, so that there is no space near the landing entrance 23a. A substantially rectangular parallelepiped-shaped isolation space SS isolated from the elevator hall EVH side is defined.

  Here, the edge of each panel 92, 92, 94, 96 is each wall surface of the elevator hall EVH (the floor surface B of the elevator hall EVH and the front wall surface F1 of the elevator hall EVH (that is, the landing doorway 23a is opened). When there is a gap in the contact with the wall surface F1)), a belt-like airtight curing sheet 98a is laid to cover the connection, and the curing sheet 98a is attached to the panel 92, by an adhesive tape 99 or the like. It fixes to both the edge of 92,94,96 and said each surface B and F1. As a result, the isolation of the isolation space SS is enhanced. The curing sheet 98a may be provided from the outside or the inside of the isolation space SS. However, in the former case, the laying work of the curing sheet 98a is excellent, while in the latter case, the curing is performed. Since the sheet 98a does not appear in the appearance, the design is excellent.

  For standing and fixing the side panel 92 and the front panel 94 to the floor surface B, for example, a U-shaped runner member (not shown in FIGS. 5A to 5D) is used. That is, as shown in the perspective view of FIG. 6, the bottom surface 101a of the runner member 101 is fixed to the floor surface B by double-sided tape, screws or the like, and a pair protruding upward from both ends of the bottom surface 101a. The lower end edges of the side panel 92 and the front panel 94 are fitted into the grooves between the rib portions 101b and 101b, whereby the side panel 92 and the front panel 94 are held upright.

  The panels 92, 94, and 96 are connected and fixed by, for example, a fastener such as a screw or a pair of insertion grooves into which the edges of the pair of panels 92, 94, and 96 to be connected are inserted. This is performed using the connecting member 103 and the like. However, if airtightness cannot be ensured in the connection (connection portion) between the panels 92, 94, and 96, an airtight curing sheet (not shown) is provided to cover the connection. In this case as well, as described above, the curing sheet may be covered from either the inside or outside of the isolation space SS, but each has the above-mentioned advantages.

  The side panel 92, the front panel 94, and the top panel 96 are all mainly composed of a rectangular flat plate such as a steel plate, and the structures thereof are substantially the same except for the size. Examples of the curing sheet 92a include a polyethylene sheet and a PET sheet.

  In the above description, the configuration including the side panel 92, the front panel 94, and the top panel 96 is illustrated, but some of the panels 92, 94, 96 are omitted depending on the three-dimensional size of the elevator hall EVH. You may do it.

  For example, as shown in the front cross-sectional view of FIG. 7A, when the ceiling surface C of the elevator hall EVH is low, the top panel 96 is omitted by diverting the ceiling surface C as the ceiling of the isolation space SS. You may do it. However, in that case, as the side panel 92 and the front panel 94, panels having a size in which the upper end edge substantially reaches the ceiling surface C in a state where the side panel 92 and the front panel 94 are erected on the floor surface B are used. Further, a runner member 101 (not shown in FIG. 7A) similar to the case of the floor surface B is applied to the upper edge and the ceiling surface C, and the upper edge is erected and fixed to the ceiling surface C. Furthermore, a curing sheet 98a is laid over the entire length of the upper edge of the side panel 92 and the upper edge of the front panel 94 so as to cover the connection with the ceiling surface C, and is adhered and fixed with an adhesive tape 99 or the like. The

  In addition, as shown in the side sectional view of FIG. 7B, when the entrance / exit 23a of the elevator hall EVH faces a narrow corridor, and the space between the entrance / exit 23a and the wall surface F2 on the building BLDG side is narrow, The front panel 94 may be omitted by diverting the wall surface F2 as the front wall of the isolation space SS. However, in that case, as the side panel 92 and the upper panel 96, panels having a size in which the front end edge substantially reaches the wall surface F2 in a state where the rear end edge is abutted against the wall surface F1 are used.

  By the way, in any of the above-described examples, an air-tight curing sheet (not shown) is laid on the floor surface B in the isolation space SS over the entire area. To prevent fouling.

  In addition, in the work space WS, if there are openings and gaps that can communicate with the external space other than the landing entrance 23a, the openings and gaps are also appropriately determined by a curing sheet such as a polyethylene sheet. As a result, the air flow path to the external space in the work space WS is substantially blocked.

(3) Dust collector 61
As shown in FIG. 2B, the dust collector 61 is connected to a dust collector main body 62 disposed on the first floor, etc. outside the elevator shaft EVS, and an air suction port 62a of the dust collector main body 62. It is mainly composed of a duct 63 laid along the side wall 23 over the entire length.

  The duct 63 has, for example, a flexible hose as a main body, and has a plurality of openings 63a with doors at appropriate pitches in the vertical direction. Of these openings 63a with doors, only the door 63a with the door located in the work space WS is selectively opened, and the doors with the other openings 63a with doors are closed. As a result, only the air in the work space WS is selectively taken into the dust collector main body 62. The air taken into the dust collector main body 62 is passed through a filter (not shown) therein to collect foreign substances in the air, and the purified air after passing through the filter is collected into the dust collector main body 62. Thus, the air pressure in the work space WS is set to a negative pressure lower than the pressure outside the work space WS (outside air). Therefore, even if a gap is unintentionally formed in the connection of the partition members 51a, 51b, 91, etc., the external leakage of asbestos from such a gap is effective even if the sealing performance in the work space WS is somewhat poor. To be prevented.

  Incidentally, as shown in FIG. 2B, when a plurality of openings 63a with doors of the duct 63 are located in the work space WS, the door of the opening 63a with the door at the lowest position is opened. Is desirable. This is because in this example, the dry ice blast method is adopted as the asbestos removal treatment. That is, the carbon dioxide gas generated by the sublimation of the dry ice particles tends to accumulate in the lower part in the work space WS, and the lower part in the work space WS needs to be actively exhausted.

  More preferably, an intake port may be disposed also in the lower part of the isolation space SS from the duct 63 via a branch pipe (not shown), so that it stays in the lower part of the isolation space SS. The obtained carbon dioxide gas can be effectively exhausted.

  Furthermore, from the viewpoint of the retention of carbon dioxide gas, it is preferable to provide an outside air intake at the upper part in the work space WS. However, in that case, it is desirable to cover this intake port with, for example, a breathable filter that restricts the passage of asbestos, thereby preventing leakage of asbestos from the intake port.

  In the example of FIG. 2B, the duct 63 is laid along the side wall 23 behind the elevator shaft EVS. However, the duct 63 may be laid along the front side wall 23.

(4) Work gondola 71
As shown in FIG. 3A, the work gondola 71 is, for example, a deck type gondola, and the main body is a cage 71 suspended from a ceiling portion 26a of the elevator shaft EVS via a suspension wire 73. The cage 71 is equipped with a hoisting machine 75 for hoisting the suspension wire 73, and an operator boarding the cage 71 adjusts the wire hoisting amount of the hoisting machine 75 with the operation panel. It is designed to move up and down. Incidentally, a so-called projecting beam 77 for fixing the upper end of the suspension wire 73 to the ceiling portion 26a of the elevator shaft EVS is attached, for example, in the machine room MR, and the suspension wire 73 is formed on the ceiling portion 26a. The elevator EV is suspended in the elevator shaft EVS through a through hole H such as the insertion hole for the suspension rope R.

(5) Dry ice blasting device A dry ice blasting device (not shown), for example, takes in the air in the work space WS or the air in the machine room MR and generates compressed air by a compressor or the like. The particles are ejected from the nozzle at the tip of the hose and are mounted on the work gondola 71.

  Here, asbestos is removed by colliding dry ice particles sprayed from this dry ice blasting device with asbestos, but the removal method is not limited to this, for example, scraping off asbestos by hand. Alternatively, the above-described containment process or enclosure process may be performed instead of the removal process.

<<< Adherent treatment method >>>
According to the above-described deposit processing equipment, asbestos in the elevator shaft EVS is removed by the following procedure.

(1) Installation of work gondola 71 The suspension wire 73 is suspended from the ceiling portion 26a of the elevator shaft EVS (FIG. 3A). 2B, the cage 71 of the work gondola 71 is carried onto the floor 26b of the elevator shaft EVS of FIG. 2B, and the lower end of the suspension wire 73 is set on the hoisting machine 75 of the work gondola 71. As a result, the work gondola 71 as the cage 71 becomes ready for use.

(2) Installation of dust collector 61 As shown in FIG. 2B, the dust collector main body 62 is arranged near the ground such as the first floor, and the duct 63 is laid along the side wall 23 over the entire length in the vertical direction of the elevator shaft EVS. To do. The duct 63 is laid, for example, by moving the work gondola 71 upward while bringing the duct 63 into the work gondola 71, and then, at the upper end of the elevator shaft EVS, the duct 63 on the upper end of the side wall 23. The other end 63c is laid downward by supporting and fixing one end thereof. And the lower end which is the said other end 63c of the duct 63 is connected to the air suction inlet 62a of the dust collector main body 62, and the dust collector 61 will be in a usable state by this.

(3) Asbestos removal In this example, as shown in FIG. 2B, the asbestos removal process is performed while intermittently and irreversibly moving the partition position of the work space WS from the top to the bottom in the elevator shaft EVS. Is carried out over the entire length of the elevator shaft EVS.

  That is, the worker first climbs on the work gondola 71 to partition the work space WS at the upper end portion in the elevator shaft EVS. Then, while riding on the work gondola 71, the pair of upper and lower shaft inner partition members 51a and 51b are attached to the side wall 23 of the elevator shaft EVS to divide the work space WS corresponding to the height of approximately the second floor. Further, the hall entrance 23a located in the work space WS is surrounded by the hall-side partition member 91 to form an isolation space SS, thereby isolating the work space WS from the elevator hall EVH.

  In addition, when the ceiling part 26a of the elevator shaft EVS can be used as the upper shaft partition member 51a, the upper shaft partition member 51a can be omitted. Further, with respect to all the work spaces WS formed after that including the work space WS at the upper end, a part of the landing entrance 23a does not protrude from the work space WS, that is, as shown in FIG. 2B. Thus, the work space WS is set so as to include the entire landing entrance 23a.

  Next, in the opening portion 63a with the door of the duct 63, the door of the opening portion 63a with the door located at the lowermost position in the work space WS is opened and the dust collector 61 is operated to bring the inside of the work space WS into a negative pressure state. To do.

  Then, the worker moves up and down while riding on the work gondola 71 in the work space WS to approach the asbestos adhesion site such as the steel beam 21a and the asbestos in the work space WS using the dry ice blasting device. Will be removed.

  Here, the asbestos covering the three-way frame 24 of the landing entrance 23a is removed when the opening / closing door 25 of the landing entrance 23a is fully opened or removed as shown in FIG. 2B. The asbestos of the three-sided frame 24 that has been hidden behind is removed. At this time, dust may be scattered to the elevator hall EVH side through the landing entrance 23a, but the scattering is effectively prevented by the hall-side partition member 91 installed at the landing entrance 23a.

  Further, the dry ice particles sprayed from the dry ice blasting device sublimate after colliding with asbestos and become carbon dioxide gas, and accumulate in the lower part of the work space WS. The accumulated carbon dioxide gas is the opening of the duct 63 with a door. The air is quickly exhausted from the portion 63a.

  When the removal of the asbestos in the work space WS is completed, the asbestos dropped on the lower partition member 51b by the removal and the asbestos deposited on the curing sheet on the floor surface B in the isolation space SS are cleaned. Inhale with a machine and clean.

  Then, in order to move the work space WS to a lower position where the asbestos removal is an untreated position, the shaft partition members 51a and 51b are removed from the side wall 23 of the elevator shaft EVS, and the work gondola 71 is removed. After being lowered, a pair of upper and lower shaft partition members 51a and 51b are attached to the side wall 23 to partition the work space WS. In parallel with this, the hall-side partition member 91 is moved to the landing entrance 23a located in the newly partitioned work space WS. Incidentally, at this time, the mounting position of the shaft inner partition member 51a on the upper side of the current work space WS is such that the work space WS partitioned last time and the work space WS partitioned this time wrap at the upper and lower ends. To be decided.

  Then, after this, the work having the same contents as the work space WS partitioned last time is repeated for the work space WS partitioned this time. That is, after the dust collector 61 is operated and the inside of the work space WS is set to a negative pressure, asbestos is removed by the dry ice blast device, and after the removal, the work space WS and the like are cleaned.

  Then, the elevator shaft EVS is sequentially repeated by moving the work space WS downward and the asbestos removal work in the work space WS until the work space WS reaches the floor 26b which is the lower end of the elevator shaft EVS. The asbestos removal operation is carried out over the entire length.

(4) Carrying out the dust collector 61 and the work gondola 71 Finally, the duct 63 is removed from the side wall 23 of the elevator shaft EVS and carried out from the building BLDG together with the dust collector main body 62. Moreover, while removing the suspension wire 73 from the ceiling part 26a of the elevator shaft EVS, the cage 71 of the work gondola 71 placed on the floor part 26b is carried out of the elevator shaft EVS.

=== Other Embodiments ===
As mentioned above, although embodiment of this invention was described, this invention is not limited to this embodiment, The deformation | transformation as shown below is possible in the range which does not deviate from the summary.

  In the above-described embodiment, the panels 92, 94, and 96 are used as the hole-side partition member 91. However, the present invention is not limited to this, and for example, a sheet-like member may be used. That is, the entire entrance / exit 23a is covered from the elevator hall EVH side by an airtight sheet such as a polyethylene sheet, and the outer peripheral edge of the airtight sheet is covered around the entire entrance / exit 23a. The part may be adhered and fixed with an adhesive tape or the like.

  In the above-described embodiment, the elevator EV provided with only one car 13 in the elevator shaft EVS is illustrated, but the present invention is not limited to this, and a so-called double-series or triple-series elevator EV may be used. In other words, the present invention may be applied to an elevator EV in which a plurality of cars 13 are provided in parallel in the horizontal direction on the left and right in the elevator shaft EVS.

  In the above-described embodiment, the case where the asbestos process is performed without the car 13 in the elevator shaft EVS is illustrated, but the asbestos process may be performed with the car 13 in the elevator shaft EVS. In this case, the car 13 is moved to the upper or lower end of the elevator shaft EVS so as not to interfere with the asbestos processing operation. Needless to say, the car 13 is moved to the processed position.

  In the above-described embodiment, the interior of the elevator shaft EVS is partitioned up and down by the shaft partition members 51a and 51b to partition the work space WS. However, the present invention is not limited to this, and the elevator shaft EVS may be partitioned. good. That is, the entire elevator shaft may be a single work space WS. In that case, the hall-side partition members 91 are provided for all the landing entrances 23a of the elevator EV. Further, in this case, the car 13 provided in the elevator EV may be used instead of the work gondola 71. That is, an operator may get on the roof surface of the car 13 and perform the processing work. Incidentally, from the viewpoint of reducing the ventilation amount of the work space WS, it is desirable to partition the work space WS by dividing the interior of the former, that is, the elevator shaft EVS up and down.

It is a sectional side view of the elevator EV which is the application object of the deposit processing equipment and this method of this embodiment. It is a plane sectional view (BB sectional view in Drawing 1A) of the elevator EV. It is the figure which looked at the entrance / exit 23a of the elevator EV from the elevator hall EVH side. It is a perspective view which shows typically the deposit | attachment processing equipment which concerns on this embodiment. It is a sectional side view of the same deposit processing equipment. It is a perspective view for explanation of shaft inner partition members 51a and 51b. It is the same front sectional view. It is a perspective view for demonstrating the upper partition member 51a. FIG. 10 is a perspective view for explaining a hole side partition member 91. FIG. FIG. It is the same front sectional view. 2 is a perspective view of a runner member 101. FIG. It is a front sectional view showing other installation modes of hall side partition member 91. It is a sectional side view which shows the other installation aspect of the hole side partition member 91. FIG.

Explanation of symbols

13 car, 19 hoist,
21 column beam frame, 21a steel beam, 21b steel column,
23 side wall (concrete panel), 23a landing entrance,
24 three-way frame, 24a collar frame, 24b upper frame,
25 Open / close door,
26a ceiling part, 26b floor part,
51a Upper shaft partition member, 51b Lower shaft partition member,
53 support rod, 53a pressure contact adhesion part, 53b feed screw mechanism, 54 string,
55 Reinforcing sheet, 55a Split piece,
56 Adhesive tape, 57 Airtight sheet, 57a Divided pieces,
58 hole member, 58a divided body, 58b horizontal flange,
61 dust collector, 62 dust collector body, 62a air suction port, 62b exhaust port,
63 Duct, 63a Opening with door, 63c The other end (lower end),
71 cage (work gondola), 73 suspension wire, 75 hoisting machine,
77 Girder,
91 Hall side partition member,
92 side panels, 94 front panels, 96 top panels,
98a curing sheet, 99 adhesive tape,
101 runner member, 101a bottom surface, 101b rib part,
103 connecting members,
EV elevator, MR machine room, WS work space, SS isolation space,
EVH elevator hall, B floor, C ceiling,
F1 front wall, F2 wall,
EVS elevator shaft, BLDG building,
H Through hole, R Hanging rope

Claims (9)

When processing the deposits in the elevator shaft, it is installed to prevent the deposits from scattering,
An adhering matter treatment facility comprising a partition member for isolating and sealing a space including the landing doorway from a space on the elevator hall side by enclosing the entire landing doorway of the elevator from the elevator hall side. The deposit treatment facility according to claim 1,
The said partition member is equipped with a pair of side panel erected on both the left and right sides of the said landing doorway, The deposit | attachment processing equipment characterized by the above-mentioned. The deposit processing equipment according to claim 2,
The said partition member is provided with the upper-surface panel which spans both ends edge to the upper end edge of a pair of said side panel, and is airtightly fixed to the said upper end edge, The deposit | attachment processing equipment characterized by the above-mentioned. The deposit treatment facility according to claim 2 or 3,
The partition member is provided with a front panel that is erected opposite to the landing doorway, has both end edges spanned between the pair of side panels, and is airtightly fixed at the both end edges. Adherent treatment equipment. The deposit treatment facility according to any one of claims 1 to 4,
By collecting the foreign matter in the air by passing the air sucked from the space including the landing entrance through the air inlet through the filter, and exhausting the air after passing through the filter to the outside of the space, An attached matter processing facility comprising a dust collector that lowers the pressure in the space to a pressure outside the space. The deposit processing facility according to claim 5,
The treatment of the deposit is a process of peeling off the deposit by spraying dry ice particles toward the deposit and causing them to collide.
The deposit processing facility according to claim 1, wherein an air inlet of the dust collector is disposed at a lower portion in a space including the landing doorway.   The deposit processing method according to claim 1, wherein deposits in the elevator shaft are processed using the deposit processing facility according to claim 1. The deposit treatment method according to claim 7,
The deposit treatment method, wherein the treatment is performed in a state where the opening / closing door provided at the landing doorway is fully opened or removed. The deposit treatment method according to claim 7 or 8,
A work space for performing the processing is defined in the elevator shaft,
The deposit processing method characterized in that, among the landing entrances provided in the elevator shaft, only all landing entrances located in the work space are enclosed by the partition member.

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