Oil Tank Semi-trailer Cleaning Method

There are four cleaning methods for oil tank semi-trailers, namely dry cleaning, wet cleaning, steam cleaning and chemical cleaning.

 

一. Safety requirements and procedures of dry cleaning method

1. Remove the oil in the tank;

2. Ventilate to remove the oil and gas in the tank, and measure the oil and gas concentration to a safe range;

3. Personnel enter the tank to clean oil, water and other sediments;

4. Dry cleaning with sawdust;

5. Remove sawdust and remove local rust with copper tools;

6. Wipe it thoroughly with a mop;

7. Dry cleaning quality inspection and acceptance.

 

二. Safety requirements and procedures for wet cleaning

1. Remove the oil in the tank;

2. Ventilate to remove the oil and gas in the tank, and measure the oil and gas concentration to a safe range;

3. Personnel enter the tank to clean oil, water and other sediments

4. Use 290~490Kpa high-pressure water to wash the oil and floating rust in the tank;

5. Remove the flushing sewage as soon as possible and wipe it with a mop;

6. Dry air and dehumidification;

7. Use copper tools to remove local rust;

8. Wet cleaning quality inspection and acceptance.

 

三. Safety requirements and procedures for steam washing

1. Remove the oil in the tank;

2. Ventilate to remove the oil and gas in the tank, and measure the oil and gas concentration to a safe range;

3. Personnel enter the tank to clean oil, water and other sediments;

4. Clean with steam, this method mainly cleans sticky oil tanks;

5. Wash the oil stains with high-pressure water, drain the sewage, and dry-clean them with sawdust;

6. Remove sawdust and use copper tools to remove local corrosion;

7. Use the mop to completely remove the stolen goods;

8. Check and accept the quality of tank washing

 

四. Safety requirements and procedures for chemical washing

1. Remove the oil in the tank;

2. Ventilate to remove the oil and gas in the tank, and measure the oil and gas concentration to a safe range;

3. Personnel enter the tank to clean oil, water and other sediments;

4. Rinse the system and equipment with water spray from the tank washer;

5. Pickling and derusting for 90~120min;

6. Remove the acid solution, rinse with water for about 20 minutes, and make the rinse solution neutral;

7. Remove the sewage and do 2 passivation treatments, the first time is about 3 minutes, and the second time is 8 minutes;

8. After 5-10 minutes of passivation, rinse with 290Kpa pressure water for 8-12 minutes;

9. Remove the rinse water and wipe it with a mop;

10. Ventilate and dry;

11. Check and accept the quality of chemical washing tanks.