Few of the typical turnkey jobs ingeniously designed, developed, manufactured, tested, installed and commissioned by us are as follows:
A) Mobile Cementation Plant
Mobile Cementation unit is a cement-slurry producing unit installed in container mounted on a flat bed trailer and transported from site to site in a ready to use condition. The system is designed as a fully automatic unit to be operated from a central control cabin through PC/PLC.
Mobile cementation system consists of four modules
Cement Conveying Module
This module consist of a dry cement vacuum assisted pneumatic conveying system for transferring cement to the silo from bag hopper or through suction nozzle, cement storage silo, Bag hopper, screw conveyor to transfer cement from silo to the mixing module, rotary airlock feeder at the bottom of the silo for ensuring positive metered feed as well as air lock for vacuum conveying system, and compressor with air dryer, filter and after cooler, associated piping and electrical control cabling.
Mixing Module
Mixing module consists of weigh hopper with rotary air lock to feed cement by LOSS-IN-WEIGHT-SYSTEM, waste storage tank, waster feeding pump, waste agitator, mixing vessel, high shear mixer for CEMENT SLURRY PRODUCTION and pneumatically operated ON?OFF and control valves placed inside the shielded enclosure and water tank with connecting pipelines and valves provided for decontamination of the mixing module on top of the shielded enclosure. Ultrasonic level switches are provided on the mixing vessel for continuous measurement of cement slurry in mixing vessel.
Air Handling Unit
Air from the shielded enclosure is handled separately filtered through a demister, filter bank of pre-filters and HEPA filters and exhausted into the atmosphere through centrifugal blower. Pressure switch and differential pressure switch is employed to monitor the pressure inside the shielded enclosure and differential pressure switch across HEPA filter respectively.
Control Module
All controls of the mobile plant are from an integrated central control situated to the from end of the unit. The control console is placed in a dust free room kept cool with a window air conditioner. The control panels, switches, PC, PLC are orgonomically positioned for easy access and operation of the operator. The operator is provided with real time information about the process parameters and also the various constituents required for study functioning of the process through PLC based system by SCADA Software.
B) Surface Decontamination System
The Surface Decontamination System (SDS) is a wet cum dry vacuum cleaner with a facility of high pressure and high temperature water jetting in the vacuum hood for efficient cleaning
SDS is suitable for utilizing in nuclear facilities as a mobile system for decontamination of interior floors and walls of nuclear facilities and it can achieve high degree of Decontamination Factor (DF) in one pass with out spread of contamination
SDS essentially consists of the following modules:
- Spray And Vacuum Hood With Hoses & Other Accessories
- High Pressure And High Temperature Water Spray Module.
- Solid Separation And Water Conditioning Module.
- High Vacuum Turbine Blower With Air Handling System.
- Instruments & Control Module
C) Chemical Reaction Plant
Design, manufacturing and supply of full fledged Chemical plant for manufacturing Nuclear grade fuel for M/s. BARC, Mumbai.
The plant comprises of 6 enclosures each consisting of variety of Water Cooled Jacketed Reaction Vessels, Thermic Fluid Heated Reaction Vessel, Induction Heated Reaction Vessel, Storage Vessels, Metering Vessels, Screw Feeder, Vibratory Feeder, Vacuum System, Nutsche Filters, Air Handling Unit, And Different Type Of Mixers & Agitator, Along With Internal Pipings between the Vessels, Metering Pumps, Centrifugal Pump, Control Valves, etc. with Necessary Instrumentation. The plant is Fully Automatic & controlled through PLC, HMI through touch screen etc .
All the components of the complete plant were ingeniously designed, manufactured and tested with the in- house facility.
D) Solid Metering System (Loss In Weight System)
Design, fabrication, supply, testing, commissioning and guarantee of
a solid feed system along with an automated control system for a vacuum furnace
Our system consists of the following
- Storage hopper of 500 kg in capacity
- Rotary feeder
- Weigh hopper of 20kg in capacity
- Loss in weight system for metering of glass powder consisting of load cells, rotary air lock with AC Variable frequency drive
- Flexible connections between weigh hopper and rotary air lock
- Motorised double flap valve
- Supports for above system and all interconnecting chutes
- Control system
Process Description
The solid feed system is required for feeding glass frit of irregular shapes and sizes into vaccum furnace opening at 5” negative pressure through an airlock feeder system.
The solid feeding system operates on the principle of Loss in weight i.e. controlled material discharge. Material extraction rate through rotary airlock below the weight hopper will continue at whatever rate selected at set point feed rate 3-15 kg/hr (50-250 g/min). The speed of the rotary feeder is continuously varied such as to maintain loss of weight constant i.e at the set feed rate.
When the weight of the material in weigh hopper reaches the preset minimum value, the required material is refilled at a high feed rate of 2ton/hr in few secs. Thus the process is continuous.
The weighing systems will be sturdy and rugged to work in the high temperature expected out door and also to withstand the jerks and vibrations.
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