Product Details
Valued acid regeneration plant 4m3/h (energy electricity) with perfect quality
JJRS assembles excellent technology research team, high qualified
management personnel, perfect management system and powerful
engineering design and complete project capability. As an
integrated solution provider, we are willing to provide iron and
steel enterprises of all over the world with highest quality
products and services, from general engineering contracting,
integrated production lines, to single equipment, even components
and spare parts.
Waste acid from acid pickling unit being collected into waste acid
tank shall be sent into preconcentrator by waste acid pump through
waste acid filter (volume is automatically adjusted by regulative
valve). Waste acid shall be sent to the top of preconcentrator for
spraying through preconcentrator circulating pump. They will carry
out direct heat exchange with burner gas (400℃) from calcinator,
thus partial water will be evaporated and the waste acid solution
has been concentrated. Condensed waste acid will be sent to the top
of calcinatory by its feeding pump through condensed acid filter,
and then enters into calcinatory for spraying by spray lance and
nozzle. In calcinatory there are 2 spray guns each with 5 nozzles
installed. The spaying gun can be automatically inserted into the
calcinatory.
Calcinatory housing is made from steel lined with refractory and
acid resistant bricks, two burners are in tangent layout for
heating, which dries precondensed acid solution drops from the
burners. In the hot area of calcinatory ( from 500℃ to 800℃) ,
FeCL2 and FeCL3 decompose as the following chemical reaction
equations show:
After hydrochloric-acid pickling hot rolled steel plate can be
cold-rolled. When hot rolled steel plates are acid pickling in
hydrochloric solution, iron and ferric oxide on surface of
hot-rolled steel plate shall be washed away by hydrochloric acid.
And then hydrochloric acid shall transform into chloride majored by
FeCL2 and dissolve into hydrochloric acid solution. Along with acid
pickling proceeding, iron ion density in hydrochloric acid solution
will go up, while dissociated HCL density will go down. In order to
maintain the density of free HCL in the acid solution, remove the
iron ion increased, the waste acid pickling solution will be sent
to acid regeneration device to regenerate free acid which shall be
returned into acid pickling unit for waste acid reutilization. At
the same time, ferric oxide is obtained.
The acid pickling process is expressed as the following chemical
reaction equations.
Calcinator material supply flow meter | 5 | | sensor |
Absorbing tower spraying flow | 5 | | sensor |
Total flow of primary and secondary absorbing tower | 5 | | sensor |
Desalted water spraying flow meter | 5 | | sensor |
Precondensation acid inlet flow meter | 5 | | sensor |
Part of the equipment
Company Profile
Beijing JJRS Technology Development Co.,Ltd. registered in national
high-tech park - Beijing Economic and Technological Development
Zone, is a high-tech enterprise specialized in a complete set of
metallurgical equipments for metal surface coating and steel strip
intensive processing, its technology integrates machinery, optics,
electricity and hydraulic pressure together.
JJRS is professional on turn-key projects from general planning,
designing to manufacturing, installing, commissioning and service.
Besides, its business also covers the designing, manufacturing of
single equipment, and automatic control system of engineering
projects.
JJRS has passed ISO9001 quality management system certification,
ISO14000 enviromental management system certification and GB/T28001
occupational health safety management system certification.
JJRS is committed to technology innovation and continuous process
improvement of the metallurgical equipment, has achieved a number
of scientific research achievements in energy conservation, waste
recycling, etc. JJRS has obtained numbers of national patents and
won a good reputation from customers both in China and abroad.
Bearing philosophy of advanced technology, professional team,
customers first and perfect service in mind, JJRS gathers excellent
technology research team and highly qulified management personnel
together, the company has perfect management systerm, powerful
engineering design and complete project capability by virtue of
exquisite technology and scientific management.