PROCHEM

DUSTY POWDER

Dusting powders are powders very fine in nature having low bulk density like 0.4gm/cm³. Powders like Bentonite, kaolin, kieselguhr, magnesium carbonate, starch, and talc are very fine powders which generate dust during handling. Such powder is unhygienic for the worker as well as for the workplace it spreads all around on the surfaces.

Generally, dusting powders pass through a 100-200 mesh sieve. To handle such powders, one need to have dust collection system inline at the all the points where dust can generate.

Basic Information

SL No.	Description	Remarks
1	Material to be conveyed	Milk powder
2	Material Form	Dry Powder
3	Conveying / Filling rate (Tons/Hr	1000 to 1200 kg/h.
4	Feed from	Jumbo Bag
5	Number of feed points	1
6	MOC	Contact Part SS-316 and Non Contact Part SS-304
7	Area Classification	FLP ZONE -2, IIA ,IIB
8	Type of system preferred	Positive pressure conveying
9	Conveying Distances in meters	15

Material Properties

SL No.	Important Parameters	Value
1	Bulk density (gm/cm³)	0.4
2	Angle of repose (°)	60
3	Moisture content (%)	0.30%
4	Temperature (°C)	Atmospheric (35)
5	Kindly specify max temp. product can withstand during conveying	60 to 65
6	Abrasive	Yes
7	Corrosive	No
8	Deliquescent	No
9	Explosive	Yes
10	Fragile	No
11	Free flowing	Yes
12	Hygroscopic	No
13	Coagulations	No

Project Statement

Jumbo bag - 500 kg has to completely empty and transfer to the Mixer. The maximum transferring capacity of the system is 3000 kg/h. The unloading system is installed at the ground floor. Access vacuum will be relief by vent filter installed at silo with the pulsing arrangement.

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.