Products
Acetylene plant
Major Features of Acetylene Plant:
- No bulky gasholder required.
- Automatic controls for feeding water, maintaining temperatures, pressures, and slurry drain are, fool proof, efficient and are of international standard.
- Excellent absorption of gas in cylinders.
- No gas loss and high yield.
- Manufactured as per Designs and Drawings approved by The Chief Controllers of Explosives.
- Manufactured under ISI quality marking.
- Very simple and safe to operate.
- Low power consumption.
- Low maintenance cost.
Technical Data of Acetylene Gas Plant :
| Specifications | 45 M3/Hr. Acetylene Plant | 100 M3/Hr. Acetylene Plant |
|---|---|---|
| Capacity | 45 M3/hr. Of Acetylene | 100 M3/Hr. of Acetylene |
| Cylinder filled per batch | 60 Cylinders | 120 Cylinders |
| Carbide size | 15-25mm | 15-25mm |
| Hopper Capacity | 200 kgs | 300 kgs |
| Carbide required per batch | 1,200 kgs approx (depending on Carbide quantity) | 2,700 kgs approx (depending on Carbide quantity |
| Power requirement | 18 KW | 30 KW |
| Start up time | 15 minutes (Approx) | 15 minutes (Approx) |
BIS SPECIFCATIONS :
| A) Acetylene Generator | IS 8471 (PT-4) 1977 |
| B) Flame Proof Motors | IS 2148 (Group II -B) - 1968 |
| Statutory requirement of distance as per Explosive Dept. | Acetylene Plant and Carbide godown Should be: 9 meters from lime pits. 15 meters from public road. 15 meters from Electricity room. 30 meters from any other bldg. 90 meters from Oxygen Plant Air intake point. Acetone godown of 2,500 Liters capacity should be 6 Meters from any other premises. |
| Power Supply | 440 Volts/ 3 phase/ 50 hertz |
Process Description
Acetylene Generator
The Acetylene Generator is of an advanced design, incorporating several features not ordinarily found in other generators. The Acetylene generator is a fully automatic plant.
Pneumatically controlled valves and highly sensitive sensors, integral with the temperature control instruments, perform all operations. These in turn open the water inlet valve or residue drain valve etc. Two hydraulic pumps help to open and close the supply of calcium carbide, which is fed into the generator by screw feed conveyors. The screw feed mechanism and the agitators are operated by flameproof motors and fittings. The entire operation is perfectly synchronized to give maximum efficiency and simplicity in operation. Any failure, whether it is of power supply, water or air is signaled visually and also audibly when an alarm bell rings to alert the operator.
Only flame proof lights & electrical fittings according to IS 214868 (group II) or BSS- 229 may be used in an acetylene plant building. Acetylene cylinder must be of specification IS: 7312:1974 or ICC: 8.
Temperature Control
The Acetylene Generator can be set to operate at any given temperature, regardless of the size of carbide used or temperature of the cooling water, A sensitive sensor actuates a pneumatic control that adds water into the generator tank when the temperature exceeds the set limit, thus maintaining a given standard temperature. This helps in complete utilization of carbide, which is a very expensive raw material.
High Pressure Control
If all the gas generated cannot be drawn in by the compressor and passed on to the filling manifold, either due to low capacity of the compressor or fast generations, gas pressure will gradually build in the generator. When the gas pressure reaches a predetermined level (about 0.5 kg /cm2) carbide charging will be cut off automatically and further generation of gas is stopped.
There is no expensive gasholder with the Acetylene Generator. This item alone will reduce the investment on such a plant. Further, as the gas generated is always at a positive pressure, the pumping cost is also reduced. Since the generator is constantly at a positive pressure, (once the plant has been purged with Nitrogen) no air enter the system, and it is this feature which makes Plant inherently very safe,
Water Level Control
If excessive water enters the generator to cool it and the water level goes above the high level mark, the water-level control instrument will immediately discharge the excessive water thus maintaining the water between the acceptable high and low level marks.
No Loss - Carbide charge
No gas is lost or wasted while charging the carbide because that section is completely sealed off from the generator by a high pressure hydraulically operated valve.
All the above controls are automatic and require no attention from the operator. There is a further safety device, in terms of an alarm bell, which will ring continuously till the fault is corrected.