Chemicals Powders dosing

Auxiliary powder dosing

Automatic chemicals  and auxiliaries powders dosing

Particular attention is paid to the design and construction of powder dispensers as, very often, the dosage of powders is a really complicated operation.
Even the storage of powders or granules in the loading hoppers requires an accurate analysis in order to correctly size both the inclinations of the walls and the geometry of the loading and unloading openings.
Very often, in order to facilitate the release of dust, the hopper is equipped not only with mechanical bridge breakers , but also with pneumatic or electric vibrators . In this case we can really talk about real vibrating hoppers .
Another element of considerable importance for the success of precision dosing is the correct sizing of the powder transport system towards the dosing point.
This system must be designed in the most congruous way possible in order to obtain fast and precise gravimetric and / or volumetric dosers .
Among the various types, the auger doser for powders, equipped with flexible auger conveyors , are the most widely used systems.
Optionally, it is possible to place a hood for the suction of the poor that evaporate during the loading operation.
Finally, it is possible to connect a scrubber or an abatement tower to the hoods .

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Hoppers of various capacities

The hoppers are used to feed the conveyor systems with the products to be dosed, whether in powder or granular form. They are built both in AISI 304/316 stainless steel and in anti-corrosion plastic material such as PP ( polypropylene ) or PVC ( Polyvinyl chloride ) , depending on the need. The geometries and dimensions may vary according to the project. all the hoppers can be equipped with a support frame, a hood for suction of residual dust as well as various accessories such as: Vibrators , bridge breakers , level probes, etc.

hopper for dosing powders

ACCESSORIES

  1. Mechanical bridge breakers in various configurations
  2. Electrovibrators with adjustable eccentric masses
  3. Vibrators or pneumatic hammers
  4. Fluidizing porous sets
  5. Rotary vane level indicators
  6. Capacitive sensors
  7. Membrane level indicators and other more specific ones
TECHNICAL FEATURES

TPA (Lt.)

100

150

200

250

300

350

400

500

600

A mm

506

900

900

900

900

900

1204

1024

1204

B mm

506

650

650

650

650

650

904

904

904

H mm

742

840

900

980

1070

1190

1004

1094

1184

Pick slope (? In degrees)

30°

30°

30°

30°

30°

30°

30°

30°

30°


Hopper dimensions

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Flexible screw conveyor

The flexible screw conveyors , particularly suitable for powder dosing and granule dosing, are widely used in the food, chemical, pharmaceutical, cosmetic and plastic industries. blends.

Flexible conveyor for powders and granules

They are made with 40 mm external diameter tube. to 125 mm. and suitable for the characteristics of the transported material. Capacity from 120 kg / h to 10,000 kg / h The actual capacity is also a function of:

 Spiral rotation speed

    1. Inclination to pick up

    2. Smoothness of the material

    3. Type of withdrawal: suitably shaped hopper, silo, drum, pile.

This transport system is able to:

    • Do not demix, during transport, mixed and dosed products.
    • Homogenize while transporting.
    • Lending itself to multiple combinations.
    • Do not pollute because it is hermetic and mechanical.
    • Ensure silent operation in the workplace.
    • Easily fit into existing systems because it is flexible.
    • Upload and download anywhere along the route.
    • Overcome significant differences in height and cover considerable distances.
    • On request special executions and in compliance with ATEX 949 / CE directive for Zone 2 – 22 and Zone 1 – 21

Withdrawal is assumed with:

– Conveyed material: free flowing granular powder
– Regular continuous flow
– Apparent specific weight 1 kg / dm³
– Initial pick-up stroke with inclination α = 30 °
Rotating spiral at 580 rpm.
(930 rpm applications are also possible)
* For the flow rate in kg / h multiply for the specific weight of your product. product

The transport potential is linked to many variables and therefore the tabulated values ​​are purely indicative, please contact our. technical office for your specific application.

TECHNICAL FEATURES

 

MODEL

FLOW LITERS / HOUR

MAR 40

140

MAR 55

400

MAR 65

850

MAR 70

1250

MAR 80

1800

MAR 90

2500

MAR 100

3500

MAR 110

4600

MAR 125

7500

bending of the granule and powder conveyor

 

MODEL -De (mm)

R (mm)

40

1000

55

1400

65

1600

70

1800

80

2500

90

2800

100

3000

110

3800

125

4500

 

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