JP2007054702A - Chipping method of adherent matter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chipping method of adherent matter allowing a worker to chip adherent matter stuck onto a metal plate-like body safely and efficiently, while suppressing factors deteriorating working environment like dust or noise. <P>SOLUTION: In this chipping method of adherent matter chipping adherent matter 51 stuck onto the metal plate-like body 50, the adherent matter is drilled, an expansive crushing material is filled in the drilled holes, to chip the adherent matter 51 from the metal plate-like body 50 by expansion of the crushing material. A static crushing material 10 having an auxiliary implement containing the expansive crushing material in a water-permeable bag is preferably used for filling the expansive crushing matter, also having an auxiliary implement provided with a bottom plate disposed in the drilled hole, a top plate having a larger area than the bottom plate and disposed outside the drilled hole, and a connection means connecting both plates. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hanging method for deposits, and more particularly to a hanging method for deposits for depositing deposits attached to a metal plate.

Conventionally, when removing deposits such as concrete adhering to a metal plate such as an iron plate from the metal plate, the concrete surface is crushed and removed mechanically using a pick hammer, breaker, etc. The method is adopted. Such a suspension method is a work accompanied by vibrations, and dust such as concrete is generated and the working environment is deteriorated. In addition, noise is large and problems to the surrounding environment are becoming serious.
Moreover, even if an impact is applied to the deposit attached to the metal plate-like body, the metal plate-like body itself acts to bend and absorb the impact force, so it is necessary to apply more impact than necessary. There were also problems such as damage to the metal plate due to the applied impact.

Further, a blade 3 formed of an iron plate is disposed in the drum 2 of the ready-mixed concrete mixer 1 shown in FIG. 1, and ready-mixed concrete naturally grows on the inner surface of the drum 2 and the blade 3. After using the mixer truck, the work has been done to wash the green concrete adhering to the drum inner surface and blades, but it is difficult to completely remove it. After several months to several years, the adhering concrete is several cm to 30 cm. Has grown to a degree. In addition, FIG.1 (b) shows sectional drawing of the drum 2 of the ready-mixed concrete mixer truck of Fig.1 (a).
In order to remove such concrete deposits, a worker enters the inside of the drum 2 and the suspension method using the breaker as described above is performed, but the work is performed in a narrow environment in the drum, The deterioration of the working environment is a very serious problem.

  Moreover, the concrete 4 adhered to the drum inner surface and the blade 3 has a structure in which the next new concrete adheres to the old concrete and is layered as shown by the dotted line 5 as shown in FIG. For this reason, even if the surface of the concrete 4 is crushed with a breaker, it is difficult to easily cause cracks to the inside concrete, and it is extremely difficult to cleanly remove the adhered concrete from the blade that is a metal plate. It is a difficult situation. In addition, the arrow of FIG. 2 has shown the exit direction from which fresh concrete is discharged | emitted from a drum.

  The object of the present invention is to solve the above-mentioned problems, suppress the deposits adhering to the metal plate, the factors that worsen the work environment such as dust and noise, and allow the worker to hang the deposits safely and efficiently. It is possible to provide a suspension method for deposits.

In order to solve the above-mentioned problem, the invention according to claim 1 provides a method for suspending deposits for attaching deposits attached to a metal plate-like body. The crushed material is filled, and the adhered material is picked up from the metal plate by the expansion of the crushed material.
In addition, the method of filling the explosive crushing material in the perforation includes a method using a static crushing material in which the expansible crushing material is contained in a permeable bag, or a method in which the expansive crushing material is mixed with water and kneaded. A method of filling the perforations into the perforations, a method of adding an expandable crushed material in water to form a slurry, and injecting it into the perforations can be employed.

  The invention according to claim 2 is the attachment method according to claim 1, wherein the inflatable crushing material is filled with a bottom plate disposed in the perforation, an area larger than the bottom plate, and outside the perforation. A static crushing material with an auxiliary tool is used, which includes an auxiliary tool composed of a top plate to be arranged and a connecting means for connecting the two, and an expandable crushing material accommodated in a permeable bag. .

The invention according to claim 3 is the attachment lifting method according to claim 1, wherein the inflatable crushing material is filled with a fixture locked by the inflatable crushing material disposed in the perforation, It is characterized by using an auxiliary tool for holding a top plate arranged outside the perforations.
In addition, the method of installing the auxiliary tool is a method of fixing the top plate by inserting the attachment part of the auxiliary tool into the expansible crushing material arranged in the perforation, especially when using a static crushing material. It is also possible to use a method of filling the static crushing material in the perforations after attaching the auxiliary tool to the static crushing material in advance.

  The invention according to claim 4 is characterized in that, in the attachment lifting method according to any one of claims 1 to 3, the perforations are arranged substantially parallel to the surface of the metal plate-like body.

  According to a fifth aspect of the present invention, in the attachment lifting method according to any one of the first to third aspects, the perforations are arranged from the opening provided in the metal plate-like body toward the inside of the attachment. It is characterized by.

  The invention according to claim 6 is characterized in that, in the attached matter suspension method according to any one of claims 1 to 5, the attached matter is concrete.

  The invention according to claim 7 is the attachment method according to claim 6, wherein the metal plate-like body is a blade formed in a drum of a ready-mixed concrete mixer or an inner surface of the drum. .

  According to the first aspect of the present invention, in the suspended matter method for attaching the deposit adhered to the metal plate-shaped body, the deposit is provided with a perforation, and the perforated is filled with an expandable crushing material, Since the adhering material is lifted from the metal plate by the expansion of the crushed material, it is possible to suppress dust and noise from being generated during the suspending operation, and it is possible to perform the suspending operation extremely safely and efficiently.

  According to the invention of claim 2, for filling the explosive crushing material, a bottom plate disposed in the perforations, a top plate having a larger area than the bottom plate and disposed outside the perforations, and a connecting means for connecting both In addition, the static crushing material with an auxiliary tool that contains the explosive crushing material in a water-permeable bag is used, so the expansion pressure of the expansible crushing material acts on the inner wall in the perforation efficiently. Therefore, it is possible to effectively crush and suspend the deposit.

  According to the invention of claim 3, the filling of the expansible crushing material includes an auxiliary tool that holds the top plate arranged outside the perforation by a fixture locked by the expansible crushing material arranged in the perforation. Because it is used, not only can the explosive crushing material be efficiently confined inside the perforation by the top plate, but there is also no need to integrally manufacture the auxiliary crushing material and the expansible crushing material consisting of the top plate and fixtures. Further, it becomes possible to greatly suppress an increase in production cost when using the auxiliary tool.

  According to the invention of claim 4, since the perforations are arranged substantially parallel to the surface of the metal plate-like body, the expansion pressure can be applied in the direction of separating the deposits from the metal plate-like body. Therefore, it is possible to efficiently pick up the deposits. In particular, the deposits deposited in layers, such as the blades of ready-mixed concrete mixer trucks, tend to crack on the surface substantially parallel to the metal plate-like body, so that the suspension operation can be performed more effectively. .

  According to the invention of claim 5, since the perforations are arranged from the opening provided in the metal plate body toward the inside of the deposit, the expansion pressure can be applied from the inside of the deposit to the outside. It becomes possible, and the deposits can be efficiently pulled from the metal plate.

  According to the sixth aspect of the present invention, since the deposit is concrete, it is possible to perform the operation extremely safely and efficiently as compared with the suspension method using a mechanical impact such as a conventional breaker.

  According to the invention of claim 7, since the metal plate-like body is a blade or an inner surface of the drum formed in the drum of the ready-mixed concrete mixer truck, conventionally, in the drum where the suspending operation has been performed in an extremely poor environment. However, it is possible to carry out the suspension work extremely safely and efficiently.

The attachment method according to the present invention will be described with reference to the following preferred examples, but is not limited thereto.
The suspension method of the present invention is a method of hanging an adherent for attaching an adherent adhering to a metal plate-like body. The adhering matter is provided with perforations, the inside of the perforations is filled with an expandable crushing material, and the crushing method is performed. It is characterized in that the adhering matter is picked up from the metal plate by the expansion of the material.

FIG. 3 is a diagram showing an example of the static crushed material 10 with auxiliary tools used in the suspension method of the present invention.
A bottom plate 12 to which a connecting tool 13 as a connecting means is attached is inserted into a water-permeable bag body 11 such as a non-woven fabric, the bag body is filled with an expandable crushing material, and the opening of the bag body 11 is appropriately heat-sealed. It is closed by a proper fastening means. Next, a top plate 14, a fixing means 15, a pulling means 16 for pulling the connecting tool, and the like are attached to the connecting tool 13 protruding from the bag body 11.
A method in which the expansible crushing material is accommodated in a water-permeable bag body such as a nonwoven fabric or a fibrous net and is used by being divided into capsules is simple and has high safety to the operator. Below, the capsule which accommodated the expansible crushing material in the bag body with water permeability is called "static crushing material."

Such a static crushing material with an auxiliary tool is proposed by the present applicant in the following Patent Document 1 or 2.
Japanese Patent Application No. 2004-292859 (Filing date: October 5, 2004) Japanese Patent Application No. 2005-92990 (Application date: March 28, 2005)

FIG. 4 is a view showing a state in which the static crushing material with an auxiliary tool of FIG.
The top plate 14 is configured to have an area larger than the area of the bottom plate 12, preferably larger than the area of the mouth portion of the perforations 20, and the top plate 14 is disposed outside the perforations 20, so A sufficient amount of intumescent crushing material can also be filled and arranged in the vicinity of the perforated opening where the portion 21 is generated. The upward pressure of the crushing material is suppressed by the top plate 14, and it is possible to generate a crushing force much stronger than the conventional one around the perforation port. For reference, a pressure distribution 22 in a direction perpendicular to the drilling direction is schematically shown in FIG.

  As shown in FIG. 4, the area of the top plate is larger than the area of the bottom plate, so that the upper force applied to the top plate is larger than the lower force applied to the bottom plate due to the expansion of the crushed material, and the top plate may be lifted. However, in reality, the frictional force between the crushed material and the inner wall surface of the perforation 20 increases due to the lateral expansion of the crushed material, and it has been confirmed that there is almost no lifting of the top plate.

  In this way, by effectively applying the expansion pressure of the crushed material not only to the inner wall surface of the piercing but also to the vicinity of the mouth of the piercing, it is possible to accelerate the generation of cracks on the surface side of the object to be crushed, As a result, the crushing speed can be increased.

FIG. 5 is a diagram showing an outline of the static crushing material 30 to which another auxiliary tool 40 is attached. 5A is a perspective view, and FIG. 5B is a cross-sectional view of FIG.
The static crushing material 30 is obtained by filling an inflatable crushing material 31 inside a water-permeable bag 32 and usually forms a stick shape. The static crushing auxiliary tool 40 includes a shaft-shaped fixture and a top plate 41. In particular, the fixture includes a locking portion 42 that is locked inside the expandable crush material, and the top plate 41 on the fixture. It has the connection part 44 for fixing or engaging, and the holding part 43 for an operator to hold.

As shown in FIG. 5 (b), the fixture and the top plate can be formed integrally with the same material, or the top plate and the fixture can be formed separately, and both can be bonded and fixed at the connecting portion 44. It can also be configured to engage.
The auxiliary tool 40 and the static crushing material 30 can be manufactured separately, and are used in combination at the time of suspension work. In addition, the auxiliary tool 40 is inserted into the static crushing material in advance as shown in FIG. After filling the inside of the perforations, or after making the slurry into a slurry by adding water to the expandable crushing material and injecting it into the perforations, the locking portion 42 of the auxiliary tool 40 is attached to the expandable crushing material filled in the perforations. By inserting, it is also possible to arrange the top plate 41 so as to cover the opening of the perforation.

Next, a description will be given of a method of hanging the deposit using the static crushed material of FIG. 3 or FIG. Below, it demonstrates centering on the static crushing material with an auxiliary tool of FIG. 3, However, It cannot be overemphasized that it is applicable similarly also when using the auxiliary tool 40 shown in FIG. Further, as in the case where only the static crushed material is used, a certain degree of lifting effect can be realized by using only the expandable crushed material without using the auxiliary tool.
FIG. 6 shows a method of suspending the deposit 51 attached to the metal plate 50 using the static crushing material 10 with an auxiliary tool, and as shown in FIG. A perforation substantially parallel to the surface is formed by a drill or the like in the vicinity of the surface, and the static crushing material 10 with an auxiliary tool is disposed in the perforation.

When the explosive crushing material expands, an expansion pressure is applied to the deposit and the metal plate in the direction of separating them from each other, and the bond strength between the deposits is higher than the bond strength between the deposit and the metal plate As shown in FIG. 6B, the deposit 51 can be neatly taken from the metal plate-like body 50.
In particular, the deposits deposited in layers, such as the blades of ready-mixed concrete mixer trucks, are prone to cracks on the surface substantially parallel to the metal plate, so that the suspension can be performed more effectively. .

Basically, it is preferable to form perforations substantially parallel to the surface of the metal plate as shown in FIG. 6, but when it is difficult to form perforations at such positions, it is shown in FIG. As described above, even if the perforation is provided at a position substantially perpendicular to the surface of the metal plate-like body 50, a certain amount of the hanging work can be performed. In particular, when the adhesion area of the deposit is large, a method of forming a plurality of perforations on the surface of the deposit 51 as shown in FIG. Is. In this case, the perforation depth is preferably as deep as possible within a range not damaging the metal plate.
In addition, when the static crushing material with an auxiliary tool is installed as shown in FIG. 7A, it is divided into a plurality of blocks as shown in FIG. It is done.

  In FIG. 7, when the static crushed material 10 with the auxiliary tool shown in FIG. 3 is used, the bottom plate 12 does not apply expansion pressure in the direction of the metal plate 50. However, it has been confirmed that the attached matter can be suspended even in such a case. The reason for this is that the expansion pressure of the explosive crushing material acts in a direction parallel to the surface of the metal plate body (lateral direction) with respect to the deposit, so that the entire deposit expands laterally, so that the metal plate shape It is presumed that the occurrence of positional deviation at the joint surface between the body and the deposit contributes.

  In FIG. 7, in order to effectively apply the expansion pressure of the expandable crushing material also to the metal plate-like body 50 side, the auxiliary tool 40 shown in FIG. 5 is used and the bottom plate 12 is not used. It is an effective method.

FIG. 8 shows a suspension method when a blade of a ready-mixed concrete mixer truck is selected as the metal plate-like body 50. Since the blade is bent in a “<” shape, a plurality of perforations are formed at positions substantially parallel to each surface, and the static crushing material 10 with an auxiliary tool is inserted into each perforation.
Fig.8 (a) shows a mode that the static crushing material 10 with an auxiliary tool was attached with respect to the deposit | attachment 51, FIG.8 (b) shows the state after a suspension.

FIG. 9 is a diagram showing another example of application of the attachment hanging method.
Specifically, an opening 60 may be formed in advance in a metal plate-like body 50 such as a blade of a ready-mixed concrete mixer to increase cleaning efficiency. When picking up the deposit 51 attached to the other surface of the metal plate-like body 50, a hole is formed in the deposit from the opening 60, and a static crushing material with an auxiliary tool is inserted into the hole.

  In the suspension method shown in FIG. 9, the explosive crushing material is disposed in the vicinity of the joint surface between the metal plate-like body and the deposit, so that the expansion pressure of the expansible crushing material is between the metal plate-like body and the deposit. Since it acts so as to spread, it becomes possible to pinch the deposits more effectively.

The attachment method of the deposit according to the present invention is not limited to the above-described method. For example, the static crushing material disclosed in Patent Document 3 and a slurry-like expansible crushing material are used in combination, Needless to say, it is possible to appropriately combine a method for increasing the filling rate of the expandable crushing material, a method for stacking and filling a plurality of static crushing materials with respect to the deep perforations disclosed in Patent Document 4. .
Japanese Patent Application No. 2005-223602 (Application Date: August 2, 2005) Japanese Patent Application No. 2005-218174 (Application Date: July 28, 2005)

  As described above, according to the present invention, the deposits adhering to the metal plate-like body are restrained from factors that deteriorate the working environment such as dust and noise, and the worker can safely and efficiently remove the deposits. An attachment that can be suspended can provide a suspension method.

It is a figure which shows sectional drawing (b) of a ready-mixed concrete mixer truck (a) and a drum. It is a figure which shows the mode of the concrete adhering to the blade in a drum. It is a figure which shows the outline of a static crushing material with an auxiliary tool. It is a figure which shows the mode of the expansion pressure of a static crushing material with an auxiliary tool. It is a figure which shows the mode of the static crushing material provided with the other auxiliary tool. It is a figure which shows an example of the hanging construction method of a deposit. It is a figure which shows the other example of the hanging construction method of a deposit. It is a figure which shows a mode that the adhering matter adhering to a braid | blade is picked up. It is a figure which shows the suspension method using the opening part formed in the metal plate-shaped object.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Concrete mixer truck 2 Drum 3 Blade 4 Concrete 5 The boundary line 10 which shows a layer state Static crushing material 11 and 32 with an auxiliary tool Bag 12 Bottom plate 13 Connecting tool 14 and 41 Top plate 15 Fixing means 16 Pulling means 20 Perforation 21 Chip Part 22 Pressure distribution 30 Static crushing material 31 Expandable crushing material 40 Auxiliary tool 42 Locking part 43 Gripping part 44 Connection part 50 Metal plate-like body 51 Adhered matter 60 Opening part

Claims (7)

In the lifting method for deposits to fix deposits attached to the metal plate,
A method for suspending an adherent, characterized in that a perforation is provided in the deposit, the explosive crushing material is filled in the perforation, and the deposit is suspended from the metal plate by the expansion of the crushing material. In the hanging attachment method according to claim 1, the filling of the expandable crushing material includes:
An auxiliary tool comprising a bottom plate disposed in the perforation, a top plate having a larger area than the bottom plate and disposed outside the perforation, and a connecting means for connecting the two is provided. A deposit hanging method characterized by using a static crushing material with an auxiliary tool housed in a bag. In the hanging attachment method according to claim 1, the filling of the expandable crushing material includes:
A deposit suspension method characterized by using an auxiliary tool for holding a top plate disposed outside a perforation by a fixture locked by an expandable crushing material disposed within the perforation.   4. The attachment lifting method according to claim 1, wherein the perforations are arranged substantially parallel to the surface of the metal plate-like body.   4. The attachment lifting method according to claim 1, wherein the perforations are arranged toward an inside of the attachment from an opening provided in the metal plate-like body. Kimono's hanging method.   6. The method for hanging deposits according to claim 1, wherein the deposit is concrete. 7. The attachment lifting method according to claim 6, wherein the metal plate-like body is a blade formed in a drum of a ready-mixed concrete mixer or an inner surface of the drum.

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