PROCHEM

Corrosive Powder

Corrosives Powder attack and chemically destroy exposed surfaces metal. They begin to cause damage as soon as they touch the skin, eyes, respiratory tract, digestive tract, or the metal. They might be hazardous in other ways too, depending on the corrosive material.Mostly corrosive powders are either acids or bases. Common acids include hydrochloric acid, sulfuric acid, nitric acid, chromic acid, acetic acid and hydrofluoric acid. Common bases are ammonium hydroxide, potassium hydroxide (caustic potash) and sodium hydroxide (caustic soda).Since, it corrodes the surface when exposed for longer duration, the contact surface should be Hastelloy / PTFE / PFE / EPDM coating or lined of required thickness. This will ensure the surfaces to be intact for longer duration.

Basic Information

SL No.	Description	Remarks
1	Material to be conveyed	Chlorine
2	Material Form	Dry Powder
3	Conveying / Filling rate (Tons/Hr)	2000Kg / Hr
4	Feed from	ANFD
5	Number of feed points	One
6	MOC	Contact Part: SS316 + PTFE Line ; Non Contact Part: SS304
7	Area Classification	FLP ZONE-2 IIA,IIB.
8	Type of system preferred	Closed Loop
9	Conveying Distances in meters	15 meters

Material Properties

SL No.	Important Parameters	Value
1	Bulk density (gm/cm³)	0.5
2	Angle of repose (°).	Not Available
3	Moisture content (%)	0.50%
4	Temperature (°C)	Atmospheric (35°C)
5	Kindly specify max temp. product can withstand during conveying	60 to 65C
6	Abrasive	Yes
7	Corrosive	Yes
8	Deliquescent	No
9	Explosive	No
10	Fragile	No
11	Free flowing	Yes
12	Hygroscopic	Yes
13	Coagulations	No

Project Statement

The output of ANFD has to be finally filled in 500Kg FIBC bags and 200L Drums. Based on the marketing requirement the type of filling changes. The process requirement is to completely empty the ANFD and should be ready for next batch for drying process. The ANFD capacity is 4KL and cycle time 4hrs-5hrs. The ANFD is on the 2nd floor. The dust generated during charging and filling were connected to client's dust collection system.

Project Detail

Jumbo bag has to put on bag unloading system by using hoist, first of all jumbo bag mouth to be clamp with unloading system and start system for the conveying process.

Vacuum blower/pump (pressure- 500mm/hg & flow 400 m3/h) started, at the same time massaging arms will be active for easy flow of material from the bag.

Material will be discharge from silo to Mixer with in control flow by using rotary airlock valve. At other condition if material filled 80 % of full volume, conveying system will be stop by using interlock of level sensor. Entire system operation is control by the PLC and HMI along with all instrument interlocks Like (sensors, proxy SW, PV, transducer) based on Automatic operation, only one operator will be handling entire process and operation activity.