Pickling line of Steel Strip with Push-Pull type (large capacity)
The seller shall be responsible for the completeness and
reliability of the process performance and equipment; the buyer
shall be responsible for any design and equipment supply changes
caused by technical solution changes that exceed contract scope.
Seller supply scope does not include spare parts.
The seller shall be responsible for instruction for equipment
installation, commissioning to guaranty that the commissioning
becomes successful. The seller shall be responsible for
instructions to the commissioning, so that qualified acid pickled
coils are produced.
Commissioning to public and auxiliary facilities shall be
responsible by the buyer.
Equipment filling in material (such as lubrication oil, hydraulic
oil and gear oils, etc. inside the equipment) shall be responsible
by the buyer.
Each energy connecting ports are connected to the using site by the
buyer
Major data of the whole Acid Pickling Unit
The major technical targets for this Acid Pickling Unit shall be
provided after the initial designing.
Emission amount of the pollutants shall be provided after initial
designing.
Pollutants and corresponded emission amount shall be provided after
initial design.
“Three Waste” treatment measures shall be provided after initial
design.cid fog
Acid fog from acid pickling tank and water washing tank shall be
sent into acid fog washing tower for purification, then drawn out
by air turbine and discharged into the atmosphere from chimney.
Washing water is discharged into sewage pit for Party A’s future
treatment
The pickling waste acid is processed by the buyer in acid
regeneration plant.
Guaranteed Items and guaranteed value
| Function assessment: carbon steel |
| | | |
Residual chlorine ion on the strip surface | ≤5mg/m2(Single side ) |
Same as above | Number of test steel coils: 3 coils for each sizeThe coil to be
tested is in the same condition as the coil when the line speed is
tested. |
Residue content on the strip surface | ≤50mg/m2(Single side) | σs≤500MPa Yield strength: σs≤500MPa | Number of test steel coils: 3 coils for each size continuously The coil to be tested is in the same condition as the coil when the
line speed is tested. Chemical analysis |
Surface quality |
No crack edge, rolled edge, scratch on strip surface | σs≤500MPa Yield strength: σs≤500MPa | Visual inspection |
Scratches refer to scratches caused on this production line. |
Coiling quality |
During coiling coils with neat edge, adjacent lap≤1mm |
On EPC side, the first five and last three laps of coil are
excluded. | |
Environment protection emission |
Acid mist emission chimney HCL emission value ≤20mg/Nm³
|
During normal production |
Buyer's lab or third party |
