JP3176499U - Wall cleaning device - Google Patents

Abstract

A wall surface cleaning device suitable for cleaning a wall surface of a sound insulating wall installed on a shoulder portion of an automobile road and cleaning a wall surface of a high place of a building is provided.
SOLUTION: A dry ice supply source 3 for supplying granular or pellet-shaped dry ice, and an injection compression for injecting the granular or pellet-shaped dry ice from a dry ice spray nozzle 4 toward a wall to be cleaned. A wall surface cleaning apparatus 1 comprising: a compressed gas supply means 5 for supplying gas to the dry ice injection nozzle 4; and an elevating mechanism 8 for moving the dry ice injection nozzle 4 up and down.
[Selection] Figure 2

Description

  The present invention relates to a wall surface cleaning device, for example, to a wall surface cleaning device used for cleaning a wall surface of a sound insulating wall installed on a shoulder portion of an automobile road, cleaning a building wall surface, or the like.

  As a method of cleaning an object to be cleaned, a blast cleaning method using a blast material such as sand, grit, plastic, and water is conventionally known.

  FIG. 3B is a conceptual diagram of a conventional blast cleaning method using grit media as a blast material.

  In the conventional cleaning method, a grit media 14 such as sand or plastic is sprayed at high speed onto an adhering material 13 such as a contaminant or a paint adhering to the surface of the base material 12 such as a wall surface. It is a method of peeling from the surface of the.

  In this case, at the same time as the deposit 13 is peeled off from the surface of the base material 12, the surface of the base material may be damaged, and a damaged surface 15 may be formed. In addition, it takes time to collect the blasting material after washing.

  Therefore, a blast cleaning method using dry ice has been proposed as a cleaning method in which the deposit 13 is peeled off from the surface of the base material 12 and the surface of the base material is not damaged (Patent Documents 1 and 2).

  Blast cleaning with dry ice is performed by spraying granular or powdery dry ice pellets on the surface of the base material at a high speed onto the surface of the base material such as the wall surface. It is a method of peeling from.

  The principle of peeling off the adherend from the surface of the base material is that the dry ice pellet sprayed at high speed and the impact force due to the collision of the adherent, the dry ice pellet enters between the peeled off deposit and the base material, and sublimated the dry ice pellet. This is due to the expansion of the volume.

  According to the above-described blast cleaning method using dry ice, the object to be cleaned can be cleaned without damaging it, and there is an effect that it is not necessary to collect the blast material after cleaning.

JP 2004-223410 A JP 2002-294648 A JP 2009-178805 A

  By the above-mentioned blast cleaning method using dry ice, it can be cleaned without damaging the surface from steel, aluminum, copper-based non-ferrous metals to new materials such as plastics. The proposal which applies the blast washing | cleaning method by the above-mentioned dry ice to the wall surface cleaning of the sound insulation wall installed in the road shoulder part, the cleaning of the wall surface of a building high place, etc. is desired.

  Therefore, an object of the present invention is to provide a wall surface cleaning device suitable for cleaning a wall surface of a sound insulation wall installed on a shoulder portion of an automobile road or cleaning a wall surface of a building height.

  In order to achieve the above object, the following ideas are proposed.

The invention of claim 1
A dry ice supply source for supplying granular or pelletized dry ice;
An injection compressed gas supply means for supplying the dry ice injection nozzle with an injection compressed gas for injecting the granular or pellet-shaped dry ice from the dry ice injection nozzle toward the wall surface to be cleaned;
A wall surface cleaning device provided with an elevating mechanism for elevating and lowering the dry ice spray nozzle.

The invention described in claim 2
The wall surface cleaning device according to claim 1, wherein the wall surface cleaning device is mounted on an aerial work vehicle.

  According to this device, it is possible to provide a wall surface cleaning device suitable for cleaning a wall surface of a sound insulation wall installed on a shoulder portion of an automobile road or cleaning a wall surface of a building height.

The figure showing one Embodiment of the dry ice blasting apparatus employ | adopted as the wall surface cleaning apparatus of this invention. The wall surface cleaning apparatus showing one Embodiment of this invention. (A) The conceptual diagram of the blast cleaning method by dry ice, (b) The conceptual diagram of the conventional blast cleaning method which used the grit media as the blast material.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  The wall cleaning device 1 of the present invention includes a dry ice supply source 3 for supplying dry ice pellets 9 in the form of granules or pellets, and the dry ice pellets 9 in the form of granules or pellets from the dry ice spray nozzle 4 to the wall to be cleaned. An injection compressed gas supply means 5 for supplying an injection compressed gas for injecting toward the dry ice injection nozzle 4 and an elevating mechanism 8 for raising and lowering the dry ice injection nozzle 4 are provided (FIG. 2).

  FIG. 1 is a conceptual diagram showing a dry ice blasting device 2 employed in the wall surface cleaning device 1 of the present embodiment.

  The dry ice blasting device 2 includes a dry ice injection nozzle 4, a dry ice supply source 3 connected to the dry ice injection nozzle 4 via a dry ice supply hose 6, and a compressed gas supply hose 7 to the dry ice injection nozzle 4. And a compressed gas supply means 5 connected thereto.

  The granular or pellet-shaped dry ice pellets 9 supplied from the hopper 3b constituting the dry ice supply source 3 are stored in the dry ice storage tank 3a, and a predetermined amount of the granular or pellet-shaped dry ice pellets 9 is stored in the dry ice storage tank 3a. Ice pellets 9 are supplied to the injection nozzle 4 via the dry ice supply hose 6.

  The granular or pellet-shaped dry ice pellets 9 supplied to the injection nozzle 4 together with the compressed gas supplied from the compressed gas supply means 5 such as a compressor to the injection nozzle 4 via the compressed gas supply hose 7 are injected into the injection nozzle. 4 is injected at a predetermined speed.

  The dry ice supplied from the dry ice supply source 3 is made of liquefied carbon dioxide gas and is formed in a granular form of about 1 mm to 2 mm or a pellet formed in a cylindrical shape having a diameter of about 3 mm and a length of about 4 mm. is there.

  FIG. 3A shows a conceptual diagram of a blast cleaning method using dry ice.

  When the dry ice pellets 9 ejected from the spray nozzle 4 collide with contaminants 13 such as wall surfaces and other contaminants and paint deposits 13, the deposits 13 become mother due to the collision force of the dry ice pellets 9. It is peeled from the material 12.

  Moreover, the deposit | attachment 13 is cracked and decomposed | disassembled by the heat shrink by the extremely low temperature of dry ice.

  Further, the dry ice pellet 9 enters the direction of the arrows 16 and 17 between the peeled deposit 13 and the base material 12, and the dry ice pellet 9 is sublimated to expand the volume. The expansion of the volume of the dry ice pellet 9 promotes the peeling of the deposit 13.

  The wall surface cleaning device 1 according to the present embodiment uses an above-mentioned dry ice blast cleaning method to clean the wall of the sound insulation wall 10 installed on the shoulder portion of the automobile road and the wall of the building high place. 11 is configured.

  FIG. 2 is a view showing an example of cleaning the wall surface of the sound insulation wall 10 installed on the shoulder portion of the motorway using the above-described dry ice blast cleaning method using the wall surface cleaning device 1 of the present invention. .

  When cleaning the wall surface of the sound insulation wall 10 installed on the shoulder portion of the automobile road, the work basket 16 connected to one end of the lifting mechanism 8 is connected to the wall surface using the lifting mechanism 8 having a boom such as a crane. Raise to near.

  A dry ice supply source 3 is installed in the work basket 16, and an operator directs the spray nozzle 4 from the work basket 16 toward the wall of the sound insulation wall 10, and dry ice pellets 9 supplied from the dry ice supply source 3. Inject.

  Deposits 13 such as contaminants adhering to the wall surface of the sound insulating wall 10 are peeled off from the wall surface of the sound insulating wall 10 by the above-described peeling action by dry ice.

  In this way, the wall surface cleaning device 1 that combines the dry ice blasting device 2 and the lift mechanism 8 that lifts and lowers the dry ice spray nozzle 4, the wall surface of the sound insulation wall 10 installed on the shoulder of the automobile road, and the wall surface of the building height Can be cleaned without damaging.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to these embodiments and examples, and is understood from the description of the scope of the utility model registration request. Various changes can be made in the range.

DESCRIPTION OF SYMBOLS 1 Wall cleaning apparatus 2 Dry ice blasting apparatus 3 Dry ice supply source 3a Dry ice storage tank 3b Hopper 4 Injection nozzle 5 Compressed gas supply means 6 Dry ice supply hose 7 Compressed gas supply hose 8 Elevating mechanism 9 Dry ice pellet 10 Sound insulation wall 11 High Work vehicle 12 Base material 13 Deposit 14 Grit media 15 Damaged surface 16 Work basket

Claims (2)

A dry ice supply source for supplying granular or pelletized dry ice;
An injection compressed gas supply means for supplying the dry ice injection nozzle with an injection compressed gas for injecting the granular or pellet-shaped dry ice from the dry ice injection nozzle toward the wall surface to be cleaned;
A wall surface cleaning device provided with an elevating mechanism for elevating and lowering the dry ice spray nozzle.   The wall surface cleaning apparatus according to claim 1, wherein the wall surface cleaning apparatus is mounted on an aerial work vehicle.

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