JPH0525925A - Constructing method and device for fireproof cover - Google Patents

Abstract

PURPOSE:To improve safety and easiness of apraying work at a high place, to prevent diffusion of a fireproof covering material and to facilitate recovery and cleaning work. CONSTITUTION:A vertically moving arm 7 and an adjusting arm 8 are mounted on a mobile carriage 1, a sealed nozzle 9 is attached at the top end of the adjusting arm 8 and a hopper 3 for storing a fireproof covering material 11 is mounted on the mobile carriage 1. The fireproof covering material 11 is fed from the hopper 3 by a pump P to the sealed nozzle 9 through a spraying hose 4, and the fireproof covering material 11 is sprayed on a work 5 from the sealed nozzle 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a device for applying a fireproof coating which allows a worker to operate a movable cart to spray a fireproof coating material on a work surface such as a beam or a pillar. Regarding

[0002]

2. Description of the Related Art Conventionally, pillars and beams of buildings such as buildings are
A fireproof coating made by mixing rock wool and cement is sprayed. When such a fireproof coating is sprayed onto the construction surface of a building, the construction surface of the spraying work is usually a high place such as a pillar or beam of a building. While using a car, a worker who rides on them holds the spraying device by hand, and the nozzles of the spraying device are directed toward the construction surface to perform the spraying work.

[0003]

However, in the above-mentioned conventional spraying work, since the nozzle of the spraying device, which the worker holds and uses, is open, it is affected by the surrounding wind. There is a problem that the fireproof coating material scatters, the loss of the fireproof coating material increases, and the scattered fireproof coating material must be recovered and cured around the work surface. There was a problem that the fire-resistant coating material was applied to workers and was not preferable. Furthermore, when using a work scaffold for spraying work, in addition to the work of assembling the work scaffold, the posture of the worker during work becomes unstable, which poses a risk that the work efficiency is low and the work efficiency is low. However, in the case of using the latter aerial work vehicle, there is a disadvantage in that it is economically disadvantageous because the aerial work vehicle is expensive and causes a cost increase of the spraying work. When using a work platform or an aerial work vehicle, it is necessary to move the materials and the like placed on the floor when moving them, which requires time and effort. There was a problem.

The present invention has been made in order to solve the above problems, and it is possible to improve work safety and work efficiency without requiring a work scaffold or an aerial work vehicle. In addition to being easy to move on the same plane, it is possible to easily move to different floors using a lift or an elevator, and to reduce the scattering loss of the fireproof coating material and to collect and clean it. It is an object of the present invention to provide a coating-resistant construction method and device that is easy and enables downsizing of a plant.

[0005]

In order to achieve the above object, the present invention covers a construction surface of an object to be sprayed with a fireproof coating with a shield nozzle,
While introducing the fire-resistant coating material into the inside, the fire-resistant coating material was moved along the extending direction of the work to spray the fire-resistant coating material onto the construction surface of the work. Further, the present invention is provided on a trolley capable of traveling, a hopper filled with a fireproof coating material, an arm provided on the trolley, and a work surface of a work piece attached to the tip of the arm. A shielding nozzle for covering and a spray hose having one end connected to the hopper and the other end communicating with the inside of the shield nozzle, and the refractory coating material is supplied from the hopper into the shield nozzle through the spray hose. And a pump. Further, according to the present invention, the arm is capable of expanding and contracting according to the distance from the trolley to the workpiece. In addition, according to the present invention, the shield nozzle can be dimensionally adjusted according to a cross-sectional shape intersecting the extending direction of the work.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a fireproof coating construction apparatus and method according to the present invention will be described below with reference to the drawings. FIG. 1 is a configuration explanatory view of a construction apparatus for a fireproof coating according to the embodiment. In FIG. 1, reference numeral 1 denotes an automatic carriage, and the automatic carriage 1 is driven by a motor (not shown) using a battery installed as a power source so that wheels 1a roll and run, or are driven by a gasoline engine or the like. The operator 2 can operate the vehicle so that it can travel. A hopper 3 is attached to the automatic cart 1. The hopper 3 is filled with a fireproof coating material 11 which is a mixture of rock wool material and cement material stored in a tank 6, and one end of a spray hose 4 is connected to the hopper 3. There is. The refractory coating material 11 in the hopper 3 is sent to the spray hose 4 by the pump P.

The pump P is driven by a motor (not shown) like the automatic carriage 1. The motor is driven by a battery mounted on the automatic truck 1 as a power source, or is driven by an output of a generator driven by an engine mounted on the automatic truck 1. In addition, the above fire resistant coating material 11
Is made by mixing and stirring rock wool and cement material with a mixer (not shown) in the tank 6, and this mixer is also driven by the motor. The refractory coating material 11 made by this mixer is supplied from the tank 6 to the hopper 3. A vertically movable arm 7 is planted on the automatic carriage 1 so as to be vertically expandable and contractible. As is clear from FIGS. 2 and 3, the lower end of the adjusting arm 8 formed in a substantially U shape is connected to the upper end of the vertically movable arm 7. Thus, the vertically movable arm 7 and the adjusting arm 8 constitute the arm A.

2 is a side view of the adjusting arm 8 in FIG. 1, and FIG. 3 is an enlarged perspective view thereof. As is apparent from FIGS. 2 and 3, in this embodiment, for example, H
The case where a beam made of steel is used as the work piece 5 and the refractory coating material is sprayed on the peripheral surface (work surface) of the work piece 5 is shown, and the adjustment arm 8 is positioned so as to straddle the work piece 5. Is connected to the tip of the vertically movable arm 7. The adjusting arm 8 is expandable and contractable in the vertical and horizontal directions according to the cross-sectional shape of the workpiece 5, that is, in the vertical and horizontal directions of these adjusting arms 8 and in the vertical direction of the vertically movable arm 7. Each dimension adjustment can be done manually or electrically.

As is apparent from FIGS. 1 and 3, a casing-shaped shield nozzle 9 is attached to the tip of the adjusting arm 8. The shield nozzle 9 can be dimensionally adjusted in accordance with the cross-sectional shape of the work piece 5 by expanding and contracting the adjusting arm 8 in the vertical and horizontal directions. The tip of the spray hose 4 is attached toward the work piece 5. Thus, on the automatic carriage 1, the hopper 3, the spray hose 4, the tank 6, the vertically movable arm 7, the adjustment arm 8,
The shield nozzle 9 and the pump P constitute a plant. Further, an operation box 10 is arranged at a predetermined position in a driver's seat on which the worker 2 on the automatic carriage 1 is seated. In this operation box 10, the worker 2 not only operates and stops the automatic carriage, but also sprays the fireproof coating material 11 onto the work 5, drives and stops the mixer in the tank 6, and drives and stops the pump P. Further, adjustment operations of the vertically movable arm 7 and the adjustment arm 8 are performed.

Next, the operation of spraying the fireproof coating material 11 onto the workpiece 5 will be described. First, the worker 2 rides on the automatic trolley 1 and operates the operation box 10 to cause the automatic trolley 1 to travel in the vicinity of the work 5 and stop.
Then, the rock wool material and the cement material are put into the tank 6 to drive the mixer, make the fireproof coating material 11 and supply it to the hopper 3, and adjust the position of the vertically movable arm 7 to an optimum length. The adjustment arm 8 is adjusted so that the shield nozzle 9 has a size suitable for covering the periphery of the work piece 5. By driving the pump P in this state, the refractory coating material 11 supplied to the hopper 3 is pumped up and sent into the shield nozzle 9 through the spray hose 4, and the refractory coating material 11 is diffused in the shield nozzle 9. And spray it onto the peripheral surface of the work piece 5. As a result, as is clear from FIG. 2, the peripheral surface of the work piece 5 is coated with the fireproof coating material 11. With the progress of the spraying work, the worker 2 operates the operation box 10 to operate the automatic carriage 1
The spraying work is continued while traveling in the extending direction of the work piece 5.

As described above, according to the fireproof coating construction apparatus of this embodiment, the fireproof coating material 11 can be sprayed onto the work 5 such as a high place without using a work scaffold or an aerial work vehicle. It can be done safely and easily. In this case, the spraying of the fireproof coating material 11 onto the work piece 5 is performed by the shield nozzle 9
Since the refractory coating material 11 does not scatter around, it is possible to prevent scattering loss and facilitate cleaning work around the area and curing. Further, since the plant is incorporated on the automatic cart 1, the plant can be downsized, and the plant manufacturing cost can be reduced.
The plant can be easily transferred to another floor together with the automatic cart 1 using a lift or an elevator.

In order to adjust the thickness of the fireproof coating material 11 sprayed on the peripheral surface of the work piece 5, for example, if a sensor is provided in advance in the shield nozzle 9, the coating thickness can be easily adjusted. can do. As this sensor, for example, a reflection type sensor or the like is used, and when the refractory coating material 11 having a predetermined thickness is sprayed on the peripheral surface of the work piece 5, the reflection type sensor detects this and is in a stopped state until then. It suffices to drive the above-described automatic carriage 1 in the extending direction of the workpiece 5. Further, in the above embodiment, the beam of H-shaped steel was described as an example of the workpiece, but the present invention is not limited to this, and it is obvious that it may be a pillar or other building material. .

[0013]

As described above, according to the present invention, the construction surface of the work to which the fireproof coating material is sprayed is covered with the shield nozzle, and the shield nozzle is introduced while the fireproof coating material is introduced thereinto. By moving along the extending direction of the work, and spraying the fireproof coating material onto the construction surface of the work, work scaffolding and aerial work vehicles are not required, and work safety and Not only can work efficiency be improved, it is easy to move on the same plane, but it is also possible to easily move to different floors by using a lift or an elevator. Scattering loss can be reduced, collection and cleaning operations can be easily performed, and the plant can be downsized.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of an embodiment of an apparatus and method for applying a fireproof coating of the present invention.

2 is a side view of a portion of an adjusting arm in the embodiment of FIG. 1. FIG.

FIG. 3 is an enlarged perspective view of a work surface, a shield nozzle, and an adjusting arm in the embodiment of FIG.

[Explanation of symbols]

1 Automatic trolley (trolley) 3 hoppers 4 spray hose 5 Workpiece 7 Up-and-down free arm (arm) 8 Adjustment arm (arm) 9 Shield nozzle 11 Fireproof coating A arm P pump

Claims (4)

[Claims] 1. A shield nozzle covers a construction surface of an object to be sprayed with a fireproof coating, and the shield nozzle is introduced along the extending direction of the workpiece while introducing the fireproof coating into the shield nozzle. A method for applying a fireproof coating, which comprises moving and spraying the fireproof coating material onto a construction surface of the construction object. 2. A hopper provided on a trolley capable of traveling and filled with a fireproof coating material, an arm provided on the trolley, and a construction surface of a work piece attached to a tip of the arm. A covering shield nozzle, a spray hose having one end connected to the hopper and the other end communicating with the inside of the shield nozzle, and the refractory coating material is supplied from the hopper into the shield nozzle through the spray hose. A pump and a fireproof coating construction device equipped with. 3. The fireproof coated construction apparatus according to claim 2, wherein the arm is capable of expanding and contracting according to a distance from the trolley to the workpiece. 4. The fireproof coated construction apparatus according to claim 2, wherein the shield nozzle is dimensionally adjustable in accordance with a cross-sectional shape intersecting the extending direction of the workpiece.