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Pre-treatment equipment management and maintenance

Views: 0     Author: Site Editor     Publish Time: 2021-07-12      Origin: Site Inquire

 

Pre-treatment equipment management and maintenance

 Pre-treatment equipment in operation should be routine maintenance and regular maintenance, maintenance content and maintenance frequency is shown in Table 3-5 and Table 3-6.

Table 3-5 Pre-treatment equipment routine maintenance

 

Inspection items

Item

Standard

Remarks

Each process

Metal mesh (strainer)

Normal


Nozzle, spray pipe

Normal



Pressure

Given value



Temperature

Given value



Spraying of spraying

Given value



Pumps, motors

Normal



Liquid level in the tank

Given value



Heating unit

Heat supply

Normal


Heat exchanger population temperature

Given value

Record Adjustment


Circulation system pressure

Given value

Sweeping


Heated oil-water separator

Temperature

Normal

Record Adjustment

Circulating fluid volume

Given value

Adjustment


Discharge oil volume

Normal

Records


De-slagging device

Circulating fluid volume

Given value

Adjustment

Clearness of circulating back fluid

Normal

Sweeping


Residual discharge volume

Normal

Records


Pharmacological supplementation

Replenish the liquid volume in the tank

Normal

Recording, adjustment

Supplementary additions

Normal

Adjustment


Water supply

Given value

Adjustment


Other

Dosage of pharmaceuticals

Records


Number of units handled

Records



 

Table 3-6 Pre-treatment equipment regular maintenance

Work sequence

Item

Maintenance Frequency®

Remark

Pre-skimmed

Tank, circulation system

1/month

Waste cleaning

Degreasing

Tank, circulation system

1/12 months (less than 10,000 units/year)

1/6 month (1~50,000/year) 1/4 month (50,000+)

Inverted groove cleaning

Heated oil-water separator

1/month

1/6 months

Inspection and cleaning Cleaning Cleaning


First wash

Tank, circulation system

1/month

Waste cleaning

Second wash

Tank, circulation system

1/3 month

Waste cleaning

Tables

Tank, circulation system

1/month

Waste cleaning

Phosphorization

Tank, circulation system

1/12 months (less than 10,000 units/year)

1/6 month (1~50,000/year), 1/4 month (50,000+)

Inverted groove cleaning

1/12 months

Nitric acid cleaning or disassembly cleaning



Heat Exchangers

1/month

Nitric acid cleaning


1/year

Disassembly for cleaning



Nitric acid tank

1/year

Sweeping


De-slagging system

1/6 months

Sweeping


Third wash

Tank, circulation system

1/month

Waste cleaning

Fourth wash

Tank, circulation system

1/3 month

Waste cleaning

Pure water washing

Tank, circulation system

1/6 months

Waste cleaning

The frequency of ① is determined by reference to experience and relevant case records, and depends on the operation of the equipment.

 

 


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