Excellent acid regeneration plant 8m3/h (energy electricity) for customer
Waste acid regenerating unit can be decomposited by wasteacid regeneration production line to obtain the regenerated hydrochloric acid andiron oxide powder with the same concentration as the original waste acidsolution not containing or containing a small amount of molysite. Regeneration acidafter concentration adjustment by complex acid could be used again by the acid picklingline.
Production Technology Introduction
Waste acid regenerating principle
4FeCL2+4H2O+O2=2Fe2O3+8HCL
2FeCL3+3H2O=Fe2O3+6HCL
Process Flow:
Waste acid → waste acid storage tank → concentration → spray roasting →decomposition → HCL (gas) → iron powder (collecting) → furnace gas cooling →HCL absorption → regenerated acid → regenerated acid storage tank
Iron oxide powder is stored in the iron powder bin forpackaging storage by air conveying device; Offgas after absorption is emittedthough many times washing.
Performance of the Acid Regeneration Line
Capacity: 3m3/h, 4m3/h, 6m3/h,8m3/h. Capacity can be designed according to client requirement.
Major Parameters
Waste acid Fe2+≤140g/L HCL 3-5%
Regenerating acid Fe2+ ≤5g/L HCL 190-220g/L
Iron powder Fe2O3≥99% CL-≤0.01%
Exhaust gas Fe2O3≤10mg/Nm3 HCL ≤20mg/Nm3
Effluent Fe2+0-120g/L HCL 0-20% (discontinuously discharge)
Efficiency ≥99.5%
Energy consumption <750Kcal/L
Energy electricity, water, compressed air
Characteristics of the Acid Regeneration Line
Our waste acid regenerating unit could connect with the acid pickling lineseamlessly as we have taken into consideration of plant planning productionline design to commissioning, production and maintenance together. By our AcidRegeneration Line, the resource configuration optimization is realized, theuser cost is reduced, the operation is simplified, the efficiency is improved, andthe stable and safe operation of the line is guaranteed.
With the society environmental protection consciousness is strengthened, nowadaysmore requirements are raised for waste acid treatment. Our company waste acidregenerating unit adopts the advanced spray roasting method (i.e.: Ruthnermethod), so that the hydrochloric acid recovery efficiency is higher, "TheThree Wastes" emissions are less. Not only the problem of environmentalprotection is solved, but also very good social benefits and economic benefitsare honored.
Acid pickling unit design parameters
| No. | Description | Remarks | Unit |
| 1 | Acid pickling coil amount | 2100 000 | Ton/year |
| 2 | Acid pickled coil type | Low carbon steel | |
| 3 | Acid pickling Unit work hours per year | 7200 | Hour |
| 4 | Lost Fe in acid pickling process | About 0.4 | % |
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