JP5989461B2 - Filling method of refractory treatment material to penetration part and refractory treatment material - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a method for filling a fireproofing material into a penetrating part filled between a penetrating part formed in a fireproof compartment of a building and a wiring / piping material inserted into the penetrating part, and a fireproofing material. .

  2. Description of the Related Art Conventionally, in order to allow wiring / piping materials to penetrate through a fire prevention compartment wall as a fire prevention compartment in a building, a through-hole penetrating the fire prevention compartment wall in the thickness direction is formed. A fireproofing treatment is performed between the through hole and the wiring / pipe material on the fireproof partition wall. This fireproofing treatment is provided, for example, to prevent inflow of flame, smoke, or toxic gas to the other side through the through-hole when a fire or the like occurs on the front side of one wall across the fire prevention partition wall. It has been. In other words, the fireproofing process closes the space between the through hole and the wiring / piping material in the event of a fire, etc., thereby preventing the flow of flame, smoke, or toxic gas to the opposite side of the fire. ing.

  As such a fireproofing treatment, there is a method in which a fireproofing treatment material is filled between the through hole and the wiring / piping material. As a fireproof processing material, the fireproof processing material disclosed by patent document 1 is mentioned, for example. This fireproof material is formed by covering a block body having cushioning properties and nonflammability with a heat-expandable fireproof material obtained by vulcanizing rubber containing an expandable material.

JP 2008-245508 A

  However, the refractory treatment material of Patent Document 1 is configured such that a block body is accommodated in an exterior member that is made of rubber through a vulcanization process. That is, since the exterior member has a rubber property, it is difficult to slip each other when the exterior members are in contact with each other. Thereby, when inserting a some fireproof processing material in a penetration part, there existed a possibility that an exterior member may contact, and work of insertion of a fireproof processing material in a penetration part may take time.

  The present invention has been made in view of the above-described conventional problems, and the object thereof is a method for filling a penetration portion with a refractory treatment material capable of smoothly filling a refractory treatment material into the penetration portion, and It is to provide a fireproofing material.

In order to solve the above-mentioned problems, the invention described in claim 1 is provided with a large number of fire-resistant treatment materials having a block-like treatment material main body that has cushioning properties and rubber properties and expands by heat. Most of the refractory treatment materials are accommodated between the through-holes formed through the fire-proof compartments in the thickness direction and the wiring / piping materials inserted into the through-holes, and the outer surfaces of the most refractory treatment materials Gathering each other together, applying a lubricant to the outer surface of the treatment material main body of the remaining refractory treatment material, and filling the remaining refractory treatment material in the through-hole containing most of the refractory treatment material And

The gist of the second aspect of the present invention is that the lubricant is formed of a refractory material in the refractory treatment material filling method according to the first aspect.
Invention of Claim 3 makes it a summary for the filling method of the fireproof processing material of Claim 1 or Claim 2 that the said lubricant is a powdery thing.

  According to the present invention, it is possible to smoothly perform the operation of packing the fireproof material into the through portion.

The front view which shows the fire prevention division wall which performed the fireproof process. The perspective view which shows the fireproof processing material of embodiment. The perspective view which shows the fireproof processing material which apply | coated the lubricant. Sectional drawing which shows the fireproofing material of embodiment. The front view which shows the fire prevention division wall before performing a fireproof process.

Hereinafter, an embodiment of a fireproof material embodying the present invention will be described with reference to FIGS.
As shown in FIG. 1, a square hole-like through hole 34 (penetrating portion) for allowing the wiring / pipe material 33 to penetrate in the thickness direction of the fire prevention compartment wall W is formed in the fire prevention compartment wall W as the fire prevention compartment. Has been.

Next, in order to form the fireproof structure of the penetration part in the fire prevention partition wall W, the fireproof processing material 11 with which the through-hole 34 is filled is demonstrated.
As shown in FIG. 2, the refractory treatment material 11 includes a treatment material body 11a formed in a block shape (more specifically, a rectangular parallelepiped shape). As shown in FIGS. 2 and 4, the treatment material main body 11 a includes a block body 12 formed in a block shape (more specifically, a rectangular parallelepiped shape), and an exterior member 13 made of a heat-expandable heat-resistant material having a square box shape. (Thermally expandable refractory material). More specifically, the entire block body 12 constituting the fireproof material 11 is accommodated in an exterior member 13 made of a heat-expandable heat-resistant material having a square box shape. The entire block body 12 is covered with the exterior member 13 so that the block body 12 cannot be detached from the exterior member 13, and the block body 12 and the exterior member 13 are integrated so as not to be separated.

First, the block body 12 will be described.
As shown in FIG. 1, the block body 12 constituting the fireproof material 11 is formed in a rectangular parallelepiped shape. The block body 12 is made of a nonflammable material such as ceramic wool or rock wool, and the block body 12 itself has a cushioning property and has a required elasticity. That is, the block body 12 can be compressed and deformed, and can be restored to its original shape from the compressed and deformed state. Further, the block body 12 is not burned away by a flame, and does not expand even when heated by heat.

Next, the exterior member 13 will be described.
As shown in FIGS. 2 and 4, the exterior member 13 is formed slightly larger than the outer shape of the block body 12 so that the block body 12 can be accommodated in the internal space of the exterior member 13. The exterior member 13 is made of a flame-retardant heat-expandable heat-resistant material, and the heat-expandable heat-resistant material expands in volume (expanded) when its volume expands to three times or more of that before heating. A rubber (heat-expandable rubber) mixed with graphite and molded into a predetermined shape (through a molding process) is subjected to a vulcanization process. The vulcanization step is a step of applying heat to the rubber that has undergone the molding step to cause a vulcanization (crosslinking) reaction or an adhesion reaction to obtain a product having rubber elasticity. Then, through the vulcanization step, the heat-expandable heat-resistant material can be formed into the square box-shaped exterior member 13 and the exterior member 13 can be provided with rubber properties. Thereby, the processing material main body 11a has cushioning properties and rubber properties.

Next, a method for manufacturing the fireproof material 11 will be described.
First, a square box-shaped exterior member 13 as shown in FIG. 2 is manufactured. Next, the one side part in the transversal direction of the exterior member 13 is cut | disconnected from the position shown to the dashed-two dotted line of FIG. That is, the exterior member 13 is separated into a bag-like member 13b having an opening 13a and a lid member 13c that closes the opening 13a. And the block body 12 is accommodated in the internal space from the opening part 13a of the bag-shaped member 13b, and the cover member 13c is welded to the bag-shaped member 13b. Then, the exterior member 13 is formed in a square box shape, the entire block body 12 is wrapped by the exterior member 13, and the block body 12 and the exterior member 13 are integrated.

Next, a method for applying a lubrication treatment to the fireproof material 11 will be described.
As shown in FIG. 3, a lubrication portion 14 that reduces friction with other refractory treatment materials 11 is provided on the outer surface of the treatment material main body 11 a, more specifically, the outer surface of the exterior member 13. The lubrication part 14 is formed by applying a fire-resistant lubricant to the outer surface of the exterior member 13. The lubricant is a powder having fire resistance, and for example, calcium carbonate or sodium carbonate is used. In addition, the thickness of the lubrication part 14 is much thinner than the thickness of the exterior member 13.

Next, a method for applying a fireproofing process to the through hole 34 of the fireproof partition wall W using the fireproofing material 11 will be described.
As shown in FIG. 5, the wiring / pipe material support rack 20 for arranging the wiring / pipe material 33 inside the through hole 34 is disposed in the through hole 34 formed in the fire prevention partition wall W. Next, the wiring / piping material support rack 20 supports the plurality of wiring / piping materials 33, and the wiring / piping material 33 penetrates through the fire prevention partition wall W. The wiring / pipe material 33 is a general term for wiring (control cables, coaxial cables, optical cables, etc.) and piping materials (synthetic resin flexible cable tubes, steel cable tubes, etc.) arranged in the building. That is.

  As shown in FIG. 1, a large number of refractory treatment materials 11 are filled between the inner surface of the through hole 34 and the outer surface of the wiring / pipe material 33. That is, a plurality of refractory treatment materials 11 are filled in accordance with the size of the through holes 34 in the horizontal direction, and a plurality of refractory treatment materials 11 are filled in accordance with the size of the through holes 34 in the vertical direction. The refractory treatment materials 11 adjacent to each other in the vertical direction and the horizontal direction of the through-hole 34 are in pressure contact with each other in the vertical direction and the horizontal direction in order to eliminate a gap.

  The fireproof material 11 can be compressed and deformed because the block body 12 has cushioning properties, and can be elastically deformed because the exterior member 13 also has rubber properties. The fireproof material 11 can be compressed and deformed, and the through hole 34 is filled in the compressed and deformed state. For this reason, the refractory treatment material 11 filled in the through-hole 34 is pressed against the exterior member 13 serving as the outer surface of the refractory treatment material 11 adjacent in the longitudinal direction and the lateral direction by the restoring force from the compression deformation state to the original shape. Yes. Further, since the exterior member 13 has rubber properties, the exterior members 13 that are in pressure contact with each other are difficult to slide with each other, and the refractory treatment material 11 filled in the through holes 34 is prevented from being displaced. The outer surface of the exterior member 13 of the fireproof material 11 is in pressure contact with the outer surface of the wiring / pipe material 33.

  As described above, since the fireproof material 11 is compressible and deformable, it is in pressure contact with the exterior member 13 serving as the outer surface of the other fireproof material 11 by the restoring force from the compression deformation state to the original shape. . Further, since the exterior member 13 has rubber properties, the exterior members 13 that are in pressure contact with each other are less likely to slide with each other. Thereby, in the state which accommodated most among the refractory processing materials 11 which can be accommodated in the through-hole 34, the return force from the compression deformation state of the already inserted refractory processing materials 11 to an original shape, or the exterior member 13 of Due to the rubber property, it is difficult to insert the remaining refractory material 11 (for example, the remaining one) into the through hole 34.

  Therefore, when the remaining refractory treatment material 11 is accommodated in the through hole 34 in a state where most of the refractory treatment material 11 that can be accommodated in the through hole 34 is accommodated, the refractory treatment material 11 to be inserted from now on Lubrication is performed in the above-described procedure, and the lubrication portion 14 is formed on the fireproof material 11. Then, the fireproof material 11 subjected to the lubrication process is inserted into the through hole 34. At this time, the lubrication part 14 comes into contact with the exterior member 13 of the fire-resistant material 11 that has already been inserted. However, the lubrication part 14 reduces the friction so that it becomes slippery. It can be smoothly accommodated in the through hole 34. In addition, in FIG. 1, the fireproof processing material 11 which performed the lubrication process is shown with the color.

  Further, in the longitudinal direction and the lateral direction of the through-hole 34, the size of the fire-resistant treatment material 11 is smaller between the fire-resistant treatment materials 11 or between the inner peripheral surface of the through-hole 34 and the wiring / pipe material support rack 20. When a gap is formed, the refractory treatment material 11 is filled according to the size of the gap. That is, the fireproof material 11 is cut into a required size and used. Further, when the cut refractory material 11 is filled in the through-hole 34, the refractory material 11 passes through the through-hole so that the exterior member 13 of the adjacent refractory material 11 is pressed against the exposed surface of the block body 12. 34 is filled.

  As described above, the outer surface of the fireproof material 11 is in pressure contact with the inner peripheral surface of the through hole 34, so that there is no gap between the outer surface of the fireproof material 11 and the inner peripheral surface of the through hole 34. Similarly, when the outer surface of the fireproofing material 11 is pressed against the outer surface of the wiring / pipe material 33, there is no gap between the outer peripheral surface of the fireproofing material 11 and the outer surface of the wiring / pipe material 33.

Further, a slight gap formed between the wiring / piping material support rack 20 and the wiring / piping material 33 or between the wiring / piping materials 33 is filled with a heat-expandable heat-resistant sealing material (not shown). The
Next, actions of the fireproofing material 11 and the fireproof structure will be described.

  In a building in which fireproofing treatment is applied to the fire prevention compartment wall W, it is assumed that a fire or the like has occurred on the front side of one wall of the fire prevention compartment wall W, and the wiring / pipe material 33 has burned. At this time, the through hole 34 is closed by pressure contact with the inner peripheral surface of the through hole 34 of the fireproof material 11. For this reason, it is prevented that the through-hole 34 becomes a path | route of smoke by the fireproof processing material 11, and the problem that smoke is transmitted to the other wall surface side of the fire prevention division wall W is lost.

  Further, the exterior member 13 of the fireproof material 11 is in pressure contact with the outer surface of the wiring / pipe material 33. And the exterior member 13 is formed with the flame-retardant heat-expandable heat-resistant material. For this reason, the exterior member 13 is not immediately burned away by the heat generated from the wiring / pipe material 33, and the exterior member 13 expands by receiving heat. Moreover, since the block body 12 is formed from the material which has nonflammability, when the exterior member 13 expand | swells, the block body 12 does not burn.

  Then, even if the wiring / pipe material 33 burns and a gap is formed, the heated exterior member 13 expands toward the gap formed by the burning of the wiring / pipe material 33. At this time, the lubrication part 14 is formed in the exterior member 13 of the fireproof material 11 that has been subjected to the lubrication process. However, as described above, the thickness of the lubricating portion 14 is much thinner than the thickness of the exterior member 13. Therefore, the lubrication portion 14 does not hinder the bonding (welding) between the exterior members 13 that are in pressure contact.

  When the exterior members 13 that are in pressure contact are joined (welded), the plurality of refractory treatment materials 11 become one lump. The gap formed by burning the wiring / piping material 33 is hermetically closed by the refractory processing material 11 that forms one lump. As a result, the gap between the outer surface of the wiring / pipe material 33 and the through-hole 34 becomes a path for flame, smoke, toxic gas, and heat, and the flame, smoke, toxic gas, heat Is prevented from being transmitted, and the fireproofing material 11 exhibits a fireproofing function.

According to the above embodiment, the following effects can be obtained.
(1) The fireproof processing material 11 was formed by the block-shaped processing material main body 11a which has cushioning properties and rubber properties and expands by heat. A plurality of refractory treatment materials 11 are filled between the through hole 34 and the wiring / piping material 33 inserted into the through hole 34 to close the through hole 34. At this time, a lubricant was applied to the outer surface of the treatment material main body 11a, and the fireproof treatment material 11 was filled in the through holes 34. By applying a lubricant to the outer surface of the treatment material body 11a, the friction is reduced by the lubricant even in the rubber treatment material body 11a. The work of stuffing the fireproof material 11 into the inside can be performed smoothly.

  (2) Even if a fire occurs on the fire prevention partition wall W, a lubricant formed of a fire resistant material is applied to the outer surface of the treatment material main body 11a, more specifically, the outer surface of the exterior member 13, so that the lubricant is generated by the fire. Will not burn out. Thereby, in addition to the exterior member 13, the fire-resistant structure in the through-hole 34 can be formed also by the applied lubricant.

  (3) Since the lubricant is powdery, the lubricant layer applied to the outer surface of the exterior member 13 becomes thin. Therefore, even if a fire occurs on the fire prevention partition wall W, the fire resistance function can be exhibited without hindering the process in which the plurality of fire resistance treatment materials 11 become one lump when the exterior member 13 expands.

  (4) The lubrication part 14 was provided in the outer surface of the processing material main body 11a which comprises the fireproof processing material 11, more specifically, the outer surface of the exterior member 13. FIG. When inserting a plurality of refractory treatment materials 11 into the through-holes 34, even if the already inserted refractory treatment material 11 and the refractory treatment material 11 to be inserted are in contact with each other, friction is caused by the lubricating portion 14. Therefore, the refractory treatment material 11 can be easily slipped, and the stuffing of the refractory treatment material 11 into the through hole 34 can be performed smoothly.

  (5) The lubricant was applied to the refractory material 11 at a stage prior to insertion into the through hole 34. In addition, when inserting the fireproof processing material 11 in which the lubrication part 14 is already formed in the through-hole 34, it becomes difficult to hold | grip because it becomes slippery with a lubricant, As a result, it becomes difficult to perform insertion operation. However, since the operator applied the lubricant to the refractory treatment material 11 before the insertion into the through hole 34, it does not take time to grip most of the refractory treatment material 11. In addition, the fireproofing material 11 can be smoothly accommodated in the through hole 34.

  (6) When the fireproof material 11 is inserted into the through hole 34, if the number of the fireproof materials 11 accommodated in the through hole 34 is small (for example, two or three fireproof materials 11 in the through hole 34). The initial stage of insertion), the return force from the compression deformation state of the fireproof material 11 to the original shape does not become so large as to inhibit the insertion of the other fireproof material 11. Moreover, although the exterior member 13 has rubber properties, if a space larger than the fireproof material 11 is left inside the through hole 34, the fireproof material 11 is not touched without touching the other fireproof material 11. It is also possible to insert the treatment material 11 into the through hole 34. Therefore, when the number of the refractory treatment materials 11 accommodated in the through holes 34 is small, the refractory treatment materials 11 can be smoothly inserted into the through holes 34 even if the refractory treatment materials 11 are not lubricated. it can. On the other hand, in the state where most of the refractory material 11 that can be accommodated in the through hole 34 is accommodated (for example, the final stage in which only one remaining refractory material 11 can be inserted into the through hole 34), the remaining refractory treatment When the material 11 is accommodated in the through hole 34, friction may be caused by contact with the other refractory material 11 due to a narrow space in which the refractory material 11 is inserted. Therefore, the refractory material 11 to be inserted is lubricated to form the lubrication portion 14. According to this, even if all the refractory treatment materials 11 inserted into the through holes 34 are not lubricated, the remaining refractory treatment materials 11 are inserted after most of the refractory treatment materials 11 are inserted into the through holes 34. It is only necessary to apply a lubrication treatment. As a result, it is possible to smoothly accommodate the fireproof material 11 in the through hole 34 while reducing the labor for applying the lubrication treatment to the fireproof material 11.

(7) Since the block body 12 has cushioning properties, the work of pushing the block body 12 into the exterior member 13 can be easily performed.
(8) Since the block body 12 is encased in the exterior member 13 made of a heat-expandable heat-resistant material, the block body 12 will not escape to the outside of the exterior member 13 unless heat is transmitted to the block body 12. The fireproofing material 11 does not lose its cushioning property.

  (9) Furthermore, the exterior member 13 has rubber properties, and it is difficult for the exterior member 13 to slide in a state where the exterior members 13 are in contact with each other. Therefore, with respect to the refractory treatment material 11 to which no lubricant is applied, the refractory treatment material 11 filled in the through hole 34 can be prevented from slipping out or being displaced from the inside of the through hole 34, and the fireproof treatment structure is maintained. be able to.

  (10) The block body 12 and the exterior member 13 are not bonded. For this reason, the block body 12 can be freely deformed in the exterior member 13, and the fireproof material 11 can be easily compressed and deformed.

  (11) In the fireproofing material 11, the nonflammable block body 12 is wrapped by an exterior member 13 having flame retardancy. For this reason, the entire fireproofing material 11 is not burned out at a stroke even by a fire or the like, and the fireproofing function of the through hole 34 can be sufficiently exhibited.

In addition, you may change the said embodiment as follows.
○ As long as the lubricant is a powder, it does not matter whether it is combustible or not.
The lubricant may be high or low as long as it enables the fireproof material 11 to be smoothly inserted into the through hole 34.

The lubrication part 14 may be formed by performing fluororesin processing on the outer surface of the exterior member 13.
The lubricating portion 14 may be formed by applying lubricating oil to the outer surface of the exterior member 13.
In the embodiment, all the refractory treatment materials 11 inserted into the through holes 34 may be lubricated. Further, the number of the refractory treatment materials 11 to be subjected to the lubrication treatment instead of all the refractory treatment materials 11 may be any number.

In the embodiment, the refractory treatment material 11 having the lubrication part 14 already provided may be used as a product. In other words, the labor of the operator himself / herself for the lubrication process may be omitted.
In the embodiment, only the surface in contact with the outer surface of the refractory material 11 already accommodated (for example, the two largest surfaces facing each other among the six surfaces forming the exterior member 13) is subjected to the lubrication treatment. May be. According to this, even if the worker applies the lubricant only to the surface in contact with the already inserted refractory treatment material 11 to form the lubrication portion 14, the worker can smoothly place the refractory treatment material 11 in the through hole 34. Can be stuffed. Therefore, since it is possible to reduce friction without applying a lubricant to all surfaces, it is possible to reduce the manufacturing cost of the refractory material 11 to be lubricated and the labor for applying it.

  In the fireproofing material 11, the entire block body 12 may not be covered with the exterior member 13. For example, only the two largest surfaces facing each other among the six surfaces forming the block body may be covered with the exterior member 13. Or you may make it cover the outer surface of the block body 12 of the up-down and right-and-left 4 directions except the front surface and back surface of the fireproof processing material 11 in the state which filled the fireproof processing material 11 in the through-hole 34 with the exterior member 13. In the fire-resistant structure, even when the fire or the like occurs, even if the wiring / pipe material 33 burns to form a gap, the exterior member 13 expands toward the gap formed by the wiring / pipe material 33 burning. Then, the exterior members 13 that are in pressure contact with each other are joined (welded). Therefore, if the plurality of refractory treatment materials 11 become one lump due to the expansion of the exterior member 13, even if the entire block body 12 is not covered with the exterior member 13, a part of the block body 12 is covered with the exterior member 13. Only the exterior members 13 can be joined (welded) to each other. Therefore, while suppressing the manufacturing cost of the refractory treatment material 11, it is possible to prevent the through-hole 34 from being an inflow path of flame, smoke, toxic gas, and heat and to exhibit a fire resistance function.

  In the fireproofing material 11, if the block body 12 is not dropped from the exterior member 13, an opening may be formed in the exterior member 13 to expose the block body 12 to the outside of the exterior member 13.

  ○ If the through-hole 34 can be closed by the expansion of the exterior member 13 made of a heat-expandable heat-resistant material, the block body 12 is made of a combustible material that is burned off in the event of a fire. Also good.

The exterior member 13 may be formed of a thermally expandable refractory material mainly composed of a soft synthetic resin.
The block body 12 may be formed of a flame-retardant foaming material such as urethane or polystyrene resin. Foamable materials such as urethane and polystyrene resins are not fibrous and are formed by unevenly dispersing bubbles in the resin. However, the cohesiveness between resins excluding air bubbles is higher than the cohesiveness of fibers constituting ceramic wool or rock wool. For this reason, even if the block body 12 is cut or bent, the foamable material forming the block body 12 is not scattered from the cut surface (exposed surface) of the block body 12 or the bent portion. Therefore, it is not necessary to cover the exposed surface of the block body 12 with a separate member from the exterior member 13, and the fireproof material 11 can be easily constructed.

The block body 12 and the exterior member 13 may be bonded with an adhesive.
In the embodiment, since the exterior member 13 has elasticity, the treatment material main body 11 a may be formed only by the exterior member 13 without providing a housing space in the exterior member 13. In addition, although a housing space is provided in the exterior member 13, the block body 12 may not be housed in the housing space. That is, as long as the fireproof material itself has cushioning properties, the cushioning properties may be imparted by either the block body or the exterior member.

The refractory material 11 does not have to be a rectangular parallelepiped shape, and the shape may be changed to a spherical shape, an octahedral shape, or a triangular pyramid shape.
○ As the wiring / piping material, a plurality of wiring / piping materials may be collected.

  ○ As a fire-proof compartment, a fire-resistant treatment structure is provided by using a fire-resistant treatment material 11 in a through-hole of a hollow wall formed by sandwiching a solid wall such as a concrete wall, a floor, a ceiling, or a construction material between a pair of wall materials. May be.

  The shape of the through hole 34 may be a polygonal shape excluding a circular shape or a square shape.

  W: Fireproof partition wall as fireproof compartment, 11: Fireproof material, 11a ... Treatment material main body, 12 ... Block body, 13 ... Exterior member as thermally expandable fireproof material, 14 ... Lubrication part, 33 ... Wiring and piping 34, a through hole as a through part.

Claims (3)

A large number of fire-resistant treatment materials that have cushioning and rubber properties and that have a block-shaped treatment material body that expands due to heat ,
Most of the refractory treatment material is accommodated between a penetration part formed through the fire prevention compartment of the building in the thickness direction and the wiring / piping material inserted into the penetration part. The outer surfaces of each other are pressed against each other,
A method of filling a refractory treatment material, wherein a lubricant is applied to the outer surface of the treatment material main body of the remaining refractory treatment material, and the remaining refractory treatment material is filled in the penetrating portion containing most of the refractory treatment material.   The method of filling a fireproofing material according to claim 1, wherein the lubricant is formed of a fireproof material. The method for filling a refractory treatment material according to claim 1, wherein the lubricant is a powdery material.