KR20080039912A - Method for gouging adhering matter - Google Patents

Abstract

A method by which a worker can gouge a matter adhering to a platy metallic body efficiently in safety while controlling factors for deteriorating work environment such as particulates and noise. The method for gouging a matter (51) adhering to a platy metallic body (50) is characterized in that a bore is made in the adhering matter and filled with an expandable fragmentation material and the adhering matter (51) is gouged through expansion of the fragmentation material off the body (50). Preferably, a static fragmentation material (10), equipped with an auxiliary tool consisting of a bottom plate arranged in the bore, a top plate having an area larger than that of the bottom plate and arranged outside the bore, and a means for coupling them, and containing expandable fragmentation material in a water permeable bag, is employed for filling the expandable fragmentation material.

Description

Gouging method of attachments {METHOD FOR GOUGING ADHERING MATTER}

TECHNICAL FIELD The present invention relates to a gouging method of an attachment, and more particularly, to a gouging method of an attachment for removing a deposit attached to a metal plate body.

Conventionally, when removing an adherent such as concrete attached to a metal plate such as an iron plate from a metal plate, using a pick hammer or a breaker, the impact vibration is mechanically applied to crush and remove the concrete surface. The method is adopted. Such a gouging method is a job that involves vibration, and dust, such as concrete, is generated and the work environment is worsened. In addition, the noise is loud and environmental problems are serious.

In addition, even when an impact attached to the metal plate is impacted, the metal plate is bent to absorb the impact force. Therefore, it is necessary to add more impact than necessary, and in some cases, the metal plate may be caused by the added impact. There was also a problem such as giving a loss.

Moreover, in the drum 2 of the raw concrete mixer vehicle 1 shown in FIG. 1, the blade 3 formed with the iron plate is arrange | positioned, and the raw concrete has been made in the inner surface and the blade 3 of the drum 2. It grows naturally attached. After using the mixer car, it is a job to wash the fresh concrete attached to the inner surface of the drum or the blade, but it is difficult to remove it completely. After several months to several years, the attached concrete has grown from several centimeters to about 30 centimeters. 1 (b) shows a cross-sectional view of the drum 2 of the raw concrete mixer car of FIG. 1 (a).

In order to remove such concrete deposits, an employee enters the inside of the drum 2 to perform the gouging method using the breaker as described above. However, since the job is in a narrow environment in the drum, the deterioration of the working environment is extremely serious. It is a problem.

In addition, the concrete 4 attached to the drum inner surface or the blade 3 has a structure in which the next new concrete is attached to the old concrete, as shown in FIG. 2, and laminated in a layered manner as indicated by the dotted line 5. Have. For this reason, even when the surface of the concrete 4 is crushed by a breaker, it is difficult to easily cause cracks to the internal concrete, and it is extremely difficult to cleanly remove the adhered concrete from the blade which is a metal plate body. In addition, the arrow of FIG. 2 has shown the exit direction from which fresh concrete is discharged | emitted from a drum.

Problems to be Solved by the Invention

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problem, to suppress the deterioration of the work environment such as dust or noise, and to prevent the worker from being able to detach the attachment attached to the metal plate body safely and with good efficiency. It is to provide a conscription method.

Means for solving the problem

In order to solve the above problems, the invention according to claim 1, in the gouging method of the deposit for detaching the deposit attached to the metal plate body, forming a perforation in the deposit, filling the expandable crushing material in the puncture, By adhering this crushing material, a deposit is removed from a metal plate-shaped object.

In addition, the method for filling the expandable crushing material into the perforation is a method of using a static crushing material containing the expandable crushing material in a permeable envelope body, or a method of filling the perforated material with water by swelling the expandable crushing material. In addition, a method in which the expandable crushing material is hydrated to form a slurry and injected into the perforation may be employed.

According to the invention of claim 2, in the gouging method of the deposit according to claim 1, in order to fill the expandable crushing material, a bottom plate disposed in the perforation, a top plate having a larger area than the bottom plate and disposed outside the perforation, and both At the same time having an auxiliary tool consisting of a connecting means for connecting the crushing material is characterized in using a static crushing material with an auxiliary tool accommodated in the permeable envelope body.

According to the invention of claim 3, in the gouging method of the attachment according to claim 1, the filling of the expandable crushing material is an auxiliary tool for holding the top plate disposed outside the piercing by an attachment tool caught by the expandable crushing material disposed in the hole. It characterized by using.

In addition, the installation method of the auxiliary tool is a method of fixing the top plate by inserting the attachment portion of the auxiliary tool in the expandable crusher disposed in the perforation, but in particular, in the case of using a static crusher, the auxiliary tool is pre-installed on the static crusher. After installation, it is also possible to use a method of filling a static crushing material in the perforation.

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

In the invention according to claim 5, in the gouging method of the deposit according to any one of claims 1 to 3, the perforation is arranged from the opening provided in the metal plate body toward the interior of the deposit.

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

The invention according to claim 7 is characterized in that in the gouging method of the deposit according to claim 6, the metal plate is a blade or a drum inner surface formed in a drum of a raw concrete mixer vehicle.

Effect of the Invention

According to the invention according to claim 1, in the gouging method of a deposit for removing a deposit adhered to a metal plate body, a perforation is formed in the deposit, an expandable shredding material is filled in the perforation, and the expansion of the shredder is expanded. By removing the deposit from the metal plate body, dust and noise are prevented from occurring with the gouging operation, which makes it possible to perform the gouging operation with extremely safe and good efficiency.

According to the invention according to claim 2, the filling of the expandable crushing material is provided with 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 connecting means for connecting both. Since a static crushing material with an auxiliary tool containing the expandable crushing material in a permeable bag body is used, the expansion pressure of the expandable crushing material effectively acts on the inner wall of the perforation to effectively crush and gouge the deposits. It becomes possible.

According to the invention according to claim 3, the filling of the expandable crushing material uses an auxiliary tool for holding the top plate disposed outside the perforation by means of an attachment tool caught by the expandable crushing material disposed in the perforation. Not only can it be efficiently confined inside the perforation, but also it is not necessary to manufacture an auxiliary tool made of a top plate or an attachment tool and an expandable crushing material integrally, and greatly increase the manufacturing cost when the auxiliary tool is used. It can also be suppressed.

According to the invention according to claim 4, since the perforations are arranged substantially parallel to the surface of the metal plate body, it is possible to add an expansion pressure in the direction of dividing the deposit from the metal plate body, thereby efficiently depositing the deposit material from the metal plate body. It becomes possible to remove it. Particularly, in a layered deposit such as a blade of a raw concrete mixer, cracking easily occurs on a surface substantially parallel to the metal plate body, so that the gouging occupation can be performed more effectively.

According to the invention of claim 5, since the perforations are arranged from the openings provided in the metal plate body toward the inside of the deposit, it is possible to add an expansion pressure from the inside of the deposit to the outside, thereby efficiently depositing the deposit from the metal plate body. I can remove it.

According to the invention according to claim 6, since the deposit is concrete, it is possible to perform a job extremely safely and efficiently compared to a gouging method using a mechanical impact such as a conventional breaker.

According to the invention according to claim 7, since the metal plate is a blade or a drum inner surface formed in the drum of the raw concrete mixer vehicle, even in a drum where the gouging operation has been performed in an extremely poor environment, gouging is extremely safe and efficient. It becomes possible to carry out the work.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows sectional drawing (b) of a raw concrete mixer car (a) and a drum.

2 is a view showing the appearance of concrete attached to the blade in the drum.

3 is a view schematically showing a static crushing material with an auxiliary tool.

4 is a view showing the expansion pressure of the static crushing material with an auxiliary tool.

5 is a view showing a state of the static crushing material provided with another auxiliary tool.

6 is a view showing an example of the gouging method of the deposit.

7 is a view showing another example of the gouging method of the deposit.

8 is a view showing a state of detaching the attachment attached to the blade.

9 is a diagram illustrating a gouging method using an opening formed in a metal plate-like body.

<Description of the code>

1 concrete mixer car

2 drums

3 blades

4 concrete

Boundary Line Indicating Five Layer Status

10 Static Shredder with Auxiliary Tools

11, 32 envelopes

12 bases

13 Connecting tools

14, 41 top plate

15 Fastening means

16 towing means

20 perforation

21 cracks

22 pressure distribution

30 Static Crushers

31 Expandable Shredder

40 Auxiliary Tools

42 catches

43 grip

44 connections

50 metal platelets

51 attachments

60 opening

Preferred Mode for Carrying Out the Invention

Although the gouging method of the deposit concerning this invention is demonstrated by the following preferable example, it is not limited to these.

According to the gouging method of the present invention, in the gouging method of a deposit for removing a deposit adhered to a metal plate body, a perforation is formed in the deposit, an expandable crushing material is filled in the perforation, and the crushing material expands. It is characterized by removing an attachment from a metal plate-shaped object.

3 is a view showing an example of the static crushing material 10 with an auxiliary tool used in the gouging method of the present invention.

Into the permeable envelope 11, such as a nonwoven fabric, a bottom plate 12 having a connection tool 13 as a connecting means is inserted, and the envelope is filled with an expandable crushing material to open the opening of the envelope 11. Is blocked by a suitable fastening means such as a heat seal. Next, the top plate 14, the fixing means 15, the traction means 16 for guiding the connection tool, etc. are attached to the connection tool 13 which protrudes from the envelope body 11. As shown in FIG.

The expandable crushing material is contained in a permeable envelope body such as a nonwoven fabric or a fibrous net, and is easily divided into capsules and used in a capsule form, and also has high safety for workers. Hereinafter, the capsule which accommodated the expandable crushing material in the permeable bag body is called "static crushing material."

The static crushing material with such an auxiliary tool is proposed by the present applicant in the following patent document 1 or 2.

Patent Document 1: Japanese Patent Application No. 2004-292859 (filed date: October 5, 2016)

Patent Document 2: Japanese Patent Application No. 2005-92990 (Application Date: March 28, 2017)

4 is a view showing a state in which the auxiliary tool attached static crusher of FIG. 3 is disposed in the perforation 20.

The top plate 14 is configured to have an area larger than that of the bottom plate 12, preferably larger than the area of the inlet portion of the perforation 20, and at the same time, the top plate 14 is disposed outside the perforation 20. Sufficient expandable crushing material can be filled and disposed in the vicinity of the punching inlet where the crack 21 of the punching 20 is generated. And the expansion pressure of the crushing material is suppressed by the top plate 14, the upper pressure is suppressed, it is possible to generate a significantly stronger crushing force than the conventional one around the perforation inlet. For reference, a pressure distribution 22 in a direction perpendicular to the puncturing direction is schematically shown in FIG. 4.

As shown in Fig. 4, the area of the top plate becomes larger than the area of the bottom plate, so that the top force applied to the top plate becomes larger than the bottom force applied to the bottom plate due to the expansion of the crushing material, so that the top plate may float. Since the frictional force between the crushing material and the inner wall surface of the perforation 20 increases due to the expansion in the direction, it is confirmed that there is little rise of the top plate.

In this way, by effectively applying the expansion pressure of the crushing material not only to the wall surface inside the perforation but also near the inlet portion of the perforation, the occurrence of cracks on the surface side of the crushed object can be accelerated, and the crushing speed can be increased as a result.

5 is a diagram showing an outline of a static crushing material 30 to which another auxiliary tool 40 is attached. Fig. 5A is a perspective view and Fig. 5B is a sectional view of Fig. 5A.

The static crushing material 30 is filled with the expandable crushing material 31 inside the permeable envelope 32, and usually forms a stick shape. The static crushing aid 40 is composed of an axial attachment tool and a top plate 41, and in particular, the attachment tool fixes or couples the top plate 41 to the engaging portion 42 and the attachment tool that are caught inside the expandable crushing material. It has the connection part 44 for making it, and the holding part 43 for holding by a worker.

The relationship between the attachment tool and the top plate may be configured to be integrally molded from the same material as shown in FIG. 5 (b), or the top plate and the attachment tool are separately formed, and both of them are adhesively fixed or combined with the connecting portion 44. It is possible.

The auxiliary tool 40 and the static crushing material 30 can be manufactured separately, and are used in combination in the gouging operation. In addition, the auxiliary tool 40 is inserted into the static crusher in advance as shown in FIG. 5, and used to insert the static crusher into the perforation, or fill the perforated material with the expansive crushing material. After the intumescent shredding material is hydrated to form a slurry and injected into the perforation, the engaging plate 42 of the auxiliary tool 40 is inserted into the expansive shredding material filled in the perforation to insert the top plate 41 into the perforated portion. It is also possible to arrange to cover the opening.

Next, the gouging method of the deposit using the static crushing material of FIG. 3 or FIG. 5 is demonstrated. In the following description, the static crushing material with the auxiliary tool of FIG. 3 will be described. However, needless to say, the same can be applied to the case of using the auxiliary tool 40 shown in FIG. 5. In addition, as in the case of using only static crushing materials, a certain gouging effect can be realized with only the expandable crushing materials without using an auxiliary tool.

FIG. 6 shows a method of detaching the attachment 51 attached to the metal plate 50 using the static crushing material 10 with an auxiliary tool. As shown in FIG. In the drill, a perforation substantially parallel to this surface is formed by a drill or the like, and a static crusher 10 with an auxiliary tool is disposed in the perforation.

When the expandable crushing material is expanded, an expansion pressure is applied to the adherend and the metal plate body in the direction of dividing each other, and when the bond strength between the adherents is higher than the bond strength between the adherend and the metal plate body, Fig. 6 (b). As shown in the figure, the deposit 51 can be removed from the metal plate 50 in a brilliant manner.

Particularly, in a layered deposit such as a blade of a raw concrete mixer, cracking easily occurs on a surface substantially parallel to the metal plate body, so that the gouging occupation can be performed more effectively.

Basically, as shown in Fig. 6, it is preferable to form a substantially parallel perforation on the surface of the metal plate, but when it is difficult to form a perforation at such a position, the metal plate 50 is shown in Fig. 7. Even if a perforation is formed at a position substantially perpendicular to the surface of the surface, a certain amount of gouging can be performed. In particular, when the attachment area of the deposit is large, a method of forming a plurality of perforations on the surface of the deposit 51 and filling a plurality of static crushing materials with auxiliary tools in each punch is effective. . In this case, the depth of the perforation is preferably drilled as deep as possible in a range that does not damage the metal plate.

In addition, in the case where a static crushing material with an auxiliary tool is provided as shown in Fig. 7A, as shown in Fig. 7B, it is divided into a plurality of blocks to remove the deposit from the metal plate-like member.

In FIG. 7, when the static crushing material 10 having the auxiliary tool shown in FIG. 3 is used, the expansion pressure is not applied in the direction of the metal plate 50 by the bottom plate 12. However, even in such a case, it has been confirmed that the gouging of the deposit is possible. This causes the expansion pressure of the expandable crushing material to act in a direction (lateral direction) parallel to the surface of the metal plate body with respect to the deposit, so that the entire deposit expands in the transverse direction, and therefore, at the joining surface between the metal plate and the deposit. It is assumed that the occurrence of positional shifts contributes.

In FIG. 7, in order to effectively apply the expansion pressure of the expandable crushing material to the metal plate-like body 50 side, it is also effective to configure the base plate 12 without using the auxiliary tool 40 shown in FIG.

8 shows a gouging method in the case of selecting a blade of a raw concrete mixer vehicle as the metal plate 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 the auxiliary tool is inserted into each perforation.

Fig. 8A shows the state in which the auxiliary crushing material 10 is attached to the attachment 51, and Fig. 8B shows the state after removal.

9 is a view showing another application example of the gouging method of the deposit.

Specifically, the opening part 60 may be formed in the metal plate-like object 50, such as the blade of a raw concrete mixer car, in order to raise washing efficiency previously. When the attachment 51 attached to the other side of the metal plate 50 is removed, a perforation is formed from the opening 60 in the attachment, and a static crushing material with an auxiliary tool is inserted therein.

In the gouging method shown in FIG. 9, since the expandable crushing material is disposed near the joining surface of the metal plate-like object and the adherend, the expansion pressure of the expandable crusher acts to press and widen the space between the metal plate-like object and the adherent. It is possible to effectively detach the attachment.

The gouging method of the deposit according to the present invention is not limited to the above-mentioned one, and is, for example, a combination of the static crushing material disclosed in Patent Literature 3 and the expandable crushing material in a slurry state, and the filling rate of the expandable crushing material in the perforation is used. Needless to say, it is possible to suitably combine a method of increasing the number of layers, a method of stacking and filling a plurality of static crushing materials with respect to the deep drilling disclosed in Patent Document 4.

Patent Document 3: Japanese Patent Application No. 2005-223602 (Application Date: August 2, 2005)

Patent Document 4: Japanese Patent Application No. 2005-218174 (filed date: July 28, 2017)

As described above, according to the present invention, it is possible to suppress the deterioration of the work environment such as dust or noise, and to prevent the worker from detaching the attachment safely and efficiently. Provision may be made.

Claims (7)

In the gouging method of the attachment for removing the attachment attached to the metal plate body, A perforating method for depositing a deposit, wherein the deposit is formed with a perforated material, and an expandable crushing material is filled in the perforated material, and the deposit is separated from the metal plate body by expansion of the crushing material. The method according to claim 1, In filling of this expandable crushing material, A bottom plate disposed in the perforation, a top plate larger in area than the bottom plate, and a top plate disposed outside the perforation, and an auxiliary tool composed of connecting means for connecting the two, and at the same time permeable to the expandable crushing material. The gouging method of the attachment, characterized in that using a static crushing material attached to the auxiliary tool accommodated in the envelope body. The method according to claim 1, In filling of this expandable crushing material, A gouging method for an attachment, characterized by using an auxiliary tool for holding a top plate disposed outside the perforation by an attachment tool caught by the expandable crushing material disposed in the perforation. The method according to any one of claims 1 to 3, The drilling method is a gouging method of the deposit, characterized in that the perforations are arranged substantially parallel to the surface of the metal plate-like body. The method according to any one of claims 1 to 3, This perforation is a gouging method of the deposit, characterized in that it is disposed from the opening provided in the metal plate body toward the inside of the deposit. The method according to any one of claims 1 to 5, The gouging method of the attachment, characterized in that the attachment is concrete. The method according to claim 6, The metal plate-like object is a gouging method of the attachment, characterized in that the blade or the inner surface of the drum formed in the drum of the raw concrete mixer.

Images