JP2007268418A - Treatment method of drum - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of treating a drum without requiring heavy equipment. <P>SOLUTION: Whether there is a deposit inside the drum 1 exhausted of an industrial waste is checked. The drum 1 judged not to have the deposit is recovered as it is. Whether the deposit is further removed by cleaning is judged in the drum 1 judged to have the deposit. The drum 1 with the deposit judged to be removed by cleaning is recovered after the deposit is cleaned. The drum 1 with the deposit judged not to be removed by cleaning is recovered after the deposit is ground or cut. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method for treating drums from which industrial waste has been discharged.

  In general, most industrial waste generated in various industries is filled in drums and transported to industrial waste disposal companies. Thereafter, industrial waste disposal contractors open drums and discharge the industrial waste that is the contents into the incinerator for incineration. In addition, drums that have been emptied by discharging industrial waste are sent to the cleaning process, incineration process, etc., depending on the state of deposits adhering to the inside of the drum can. Used as

  In the process of cleaning the drum, chemicals such as acids, alkalis and organic compounds are used to remove the deposits inside the drum. For example, in patent document 1, the deposit | attachment inside a drum can is wash | cleaned and removed by the thinner. In the incineration process, drums are incinerated at high temperatures and then recovered as iron scrap.

Patent Publication 2000-055334

  However, according to the method of the above-mentioned Patent Document 1, in order to clean a small amount of deposits, many processes such as a heating medium heating process, a distillation process, and a combustion process are required in addition to the cleaning process, and equipment for that is required. It becomes. In addition, as a method of incinerating drums, there is a method in which drums containing industrial waste are incinerated as they are, but in that case, an incinerator with a huge volume is required. There is also a method of crushing and incinerating drums, but a crusher is required. For this reason, conventionally, in order to remove the deposits on the drum can, heavy equipment has been required in any case.

  An object of the present invention is to provide a method capable of processing a drum can without requiring heavy equipment.

  In order to solve the above-mentioned problems, according to the present invention, the presence or absence of deposits inside the drum cans from which industrial waste has been discharged is examined. In addition, it is judged whether the deposits can be removed by washing, and the drum cans that are judged to be removed by washing are collected after washing the deposits, and drums that are judged that the deposits cannot be removed by washing are attached. A method of treating a drum can is provided, wherein the kimono is polished or cut and then collected.

  In this treatment method, a drum can that has been determined to be capable of removing deposits by washing may be washed with hot water at 70 to 80 ° C. The cleaned deposit and / or the polished or cut deposit may be incinerated. The collected drum can can be reused as a drum can for transporting industrial waste.

  In the present invention, cleaning or the like is appropriately performed depending on the degree of deposits inside the drum. In the case of cleaning, the working atmosphere is improved by using, for example, hot water of 70 to 80 ° C. instead of thinner, and equipment for performing a heating medium heating process, a distillation process, or the like is not required. In addition, incinerators and crushers with huge volumes are not required. In addition, it is only necessary to incinerate water containing industrial waste generated by cleaning, and deposits separated from drums by grinding and cutting, so that drums can be processed with as simple equipment as possible without requiring heavy equipment. It becomes like this. The treated drum can be reused as a drum can for transporting industrial waste and can also be recovered as scrap.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram of a processing flow performed by the processing method according to the embodiment of the present invention.

First, drums filled with industrial waste generated in various industries are transported to an industrial waste disposal contractor (S1). In industrial waste disposal contractors,
The upper lid is cut off, the drum can is opened, and the industrial waste that is the contents is discharged into the incinerator and incinerated (S2).

  On the other hand, the drum can which has been emptied (empty drum) is inspected by checking for the presence of deposits inside the drum (S3). Then, what is substantially free of deposits inside the drum can can be recovered as it is and reused as a reproduction drum. On the other hand, if there are deposits inside the drum can and they need to be removed, they are separated as processing drums.

  Next, with respect to the drum can (treatment drum) that has adhered matter, it is visually determined whether or not the adhered matter can be removed by washing. In this case, for example, the drum can determined to be able to remove the deposits with hot water of 70 to 80 ° C. is sent to the cleaning step (S4), and the drum can determined to be impossible to remove the deposits by the cleaning is , Sent to polishing / cutting step (S5).

  In the cleaning step (S4), as shown in FIG. 2, the drum can 1 is installed upside down with the opening 2 down, and the nozzle 10 is inserted into the drum can 1 from below. Then, while spraying hot water of, for example, 70 to 80 ° C. from the tip (upper end) of the nozzle 10, the nozzle 10 is moved up and down and left and right, and the deposits inside the drum can 1 are washed and removed with warm water. The drum 1 thus cleaned can be reused as a regenerated drum after it is sufficiently dried.

  The deposits washed with warm water are put into an incinerator and incinerated (S2).

  Also, in the polishing / cutting step (S5), as shown in FIG. 3, the drum can 1 is installed almost horizontally so that the opening 2 faces obliquely upward, and the tool 11 is inserted into the drum can 1 through the opening 2. To do. Then, by rotating the tool 11 while pressing the blade 12 at the tip of the tool 11 against the inside of the drum can 1, deposits adhered to the inside of the drum can 1 are removed by polishing or cutting.

  In this case, when the thickness of the deposit inside the drum can 1 is substantially uniform, the deposit is removed by polishing, and when the thickness of the deposit inside the drum 1 is uneven, the deposit is removed by cutting. . Moreover, the deposit | attachment removed by grinding | polishing or cutting is extracted from the inside of the drum can 1 as needed.

  In this polishing / cutting step (S5), if there is a concern about the generation of dust or the generation of heat due to friction with the removal of deposits, watering can be performed as appropriate. In this case, water spraying may be performed on the blade 12 and the contact portion inside the drum 1.

  In particular, when there is a large amount of deposits at the bottom of the drum 1, as shown in FIG. 4, the lower lid of the drum 1 is removed in advance to make an opening 2 ′, and the deposit is placed below the drum 1 (opening 2 ′) Let fall from. In this case, the removed deposit may be dropped from the lower portion (opening 2 ') of the drum 1 while being polished or cut. Alternatively, the deposits may be dropped from the lower portion (opening 2 ') of the drum can 1 in advance, and the deposits remaining on the inside of the drum can 1 may be removed by polishing or cutting.

  Further, in this polishing / cutting step (S5), the blade 12 attached to the tip of the tool 11 can be changed to a metal or rubber brush in accordance with the properties of the deposit, and the deposit can be removed. Further, if an object capable of absorbing deposits such as activated carbon and large saw dust is previously sprayed in the drum 1 and then polished or cut, the deposits can be efficiently removed.

  Thus, the drum 1 from which the deposits have been removed by polishing or cutting can be recovered as, for example, scrap. Also, drums with good properties can be reused as drums for transporting industrial waste.

  The adhered or polished deposit is put into an incinerator and incinerated (S2). When industrial waste is incinerated, if the incinerated deposits that have been polished or cut are also incinerated, incineration can be performed more effectively and the environmental load can be reduced.

  According to the above processing method, the state of the drum 1 from which industrial waste has been discharged by appropriately performing the cleaning process (S4), the polishing / cutting process (S5), etc., depending on the degree of deposits inside the drum 1 Appropriate processing can be performed depending on the situation. In the case of cleaning, the working atmosphere is improved by using, for example, hot water of 70 to 80 ° C. instead of thinner, and equipment for performing a heating medium heating process, a distillation process, or the like is not required. In addition, incinerators and crushers with huge volumes are not required. Therefore, the drum can 1 can be processed with simple equipment without requiring heavy equipment.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to such examples. It is obvious for those skilled in the art that various changes and modifications can be conceived within the scope of the technical idea described in the claims. It is understood that it belongs to. For example, the deposits on the drum can 1 can be more efficiently removed by appropriately combining the cleaning step (S4) and the polishing / cutting step (S5).

  The present invention can be applied to the treatment of drums for transporting industrial waste generated in various industries.

It is explanatory drawing of the processing flow performed with the processing method concerning embodiment of this invention. It is explanatory drawing of a washing | cleaning process. It is explanatory drawing of a grinding | polishing and a cutting process. It is explanatory drawing of the grinding | polishing and cutting process which removed the lower cover of the drum can.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drum can 2 Opening part 10 Nozzle 11 Tool 12 Blade

Claims (4)

Examine the inside of the drums that have discharged industrial waste for the presence of deposits, collect the drums with no deposits, and determine whether the drums with deposits can be removed by washing. Drum cans that have been determined that the kimono can be removed by washing are collected after washing the deposits, and drums that have been judged that the deposits cannot be removed by washing are collected after the deposits have been polished or cut. Yes, how to treat drums. The drum can processing method according to claim 1, wherein the drum can determined to be removed by washing is washed with hot water of 70 to 80 ° C. The method for treating a drum can according to claim 1 or 2, wherein the washed deposit and / or the polished or cut deposit is incinerated. The method for treating a drum can according to any one of claims 1 to 3, wherein the recovered drum can is reused as a drum can for transporting industrial waste.

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