JPS6029269A - Method for cleaning open container - Google Patents

Abstract

PURPOSE:To completely remove the residue in an open used container, such as an open used drum, and completely clean the same for reuse, by burning the container and then pushing the same into an oscillating tank filled with grains of polishing and cleaning material. CONSTITUTION:A container 1 burned and immediately thereafter cleaned, or not cleaned, by means of shot blasting is held by a holder 4 with its opening turned downward and, handled by the holder 4 driven by a hydraulic apparatus or the like, pushed into polishing and cleaning material 3. After being left pushed in the polishing and cleaning material 3, which is oscillated, for a suitable period of time, the container 1 is pulled up and washed with water, whereby residue in the container 1 is washed away and the cleaning of the container 1 is thus completed. The lid of the container 1 having been removed therefrom is also cleaned following the same procedure. Thus, even a square container can be cleaned to each corner. Since the polishing and cleaning material does not attach to the container and readily comes off by action of electrostatic or magnetic force, complete cleaning of the container can be performed and therefore the container can satisfactorily be reused as a container of highly pure contents.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for cleaning a sky container 2, such as an open drum can, whose contents such as paint have been completely used and is empty and whose lid has been removed, for reuse. be.

Conventional cleaning methods of this type include chain, brush, and shot blast methods.

In the case of chain cleaning, an alkaline solvent or the like is put into the container, and the chain is added one by one and two people are required to clean it, which is time-consuming and inefficient. It requires treatment of waste liquids such as chemicals and solvents, and in the case of solvents, there are disadvantages in that the treatment is dangerous and there are many pollution problems.

When cleaning with a brush, if the container has uneven parts,
Complete cleaning is not possible because the brush does not touch all four parts. Further, there are drawbacks such as iron powder adhering to the container due to the friction of the brush, and fine particles of iron being adsorbed and remaining on the container due to static electricity generated by the friction of the brush.

In the case of cleaning by shot blasting, since iron powder is irradiated onto the container, fine iron particles due to the impact of the iron powder and magnetic iron particles may still adhere to the container even after cleaning, resulting in washing with water or washing with water.
Even if brushes or high-pressure water are used, these fine particles do not fall off easily.Therefore, containers cleaned using the above conventional cleaning methods cannot be used as containers for highly purified contents. It's becoming impossible.

In view of the above points, the present invention has been developed by incinerating an empty container after all the contents have been used, and then pushing it into a granular abrasive material that is placed in a vibration tank and subjected to vibration. It is an object of the present invention to provide a cleaning method that can thoroughly clean every corner of a container of any shape and completely remove residue after cleaning.

The present invention will be described in detail below based on the drawings (1
) is a container to be cleaned, and the contents (2) are empty after all liquid products such as paint have been used, and the lid has been removed. (1) is a container that has just been incinerated after being placed in an incinerator, such as an open drum. . (2) is a vibrating tank that is vibrated by a suitable vibration mechanism, and (3) is a granular abrasive material placed in the vibrating tank (2). Gravel and the like can be used alone or in appropriate combinations.

Immediately after incineration, the container +11 is cleaned with a yacht blast, or without any cleaning, supported with a holder (4) with one opening facing downward, and the holder (4) is driven by a hydraulic device or the like. while pushing it into the abrasive material (3). In this case, the vibration tank (2) may be vibrated to give vibration to the abrasive material (3) before pushing it in.

After pushing the abrasive material (
3) may be subjected to vibration. Note that water may be added to the abrasive material (3).

After pushing the container (1) into the vibrating abrasive material (3) for a suitable period of time, the container (1) is pulled out and washed with water to wash away any residue remaining in the container (1), thereby completing the cleaning of the container (1). do. The lid removed from the container (1) is also cleaned through the same process as the above-mentioned cleaning process for the container (1).

Since the present invention is configured as a steamer, not only round containers such as drums but also square containers can be thoroughly cleaned.
Moreover, after cleaning, the abrasive material does not stick to the container due to static electricity or magnetic force and falls off easily, allowing for complete cleaning.Moreover, it has the advantage of increasing cleaning speed, reducing costs, and improving purity. A fully reusable container is obtained as a container for the contents.

[Brief explanation of drawings]

The drawings are schematic representations of embodiments of the invention. (1)...Container, (2)...Vibration tank, (3)...
Abrasive material.

Claims (1)

[Claims] A method for cleaning a sky container, which comprises incinerating a used sky container and then cleaning it by pushing it into a granular abrasive material placed in a vibration tank and subjected to vibrations.