LOW-DUST POWDER HANDLING

Low-dust powder handling for filling powder in industrial processes without releasing dust.

The flexible silicone cap provides flexible connection of a telescopic tube and ensures low-dust connection as soon as the telescopic tube is introduced into the silicone cap.

The silicone cap fits on every Müller system tube or flange. All openings can thus be safely closed with a silicone cap or with a cover clamping ring connection after the filling process.

The Müller low-dust powder handling can be combined with other Müller products and integrated at moderate costs in existing plants.

features

Type

nominal diameters in DN120, 170, 250, 315 and 400
suitable for steam sterilization up to 135°C and hot air up to 200°C
can be used in the ATEX area

Material

silicone cap food-safe, approved according to FDA 177.2600 and USP VI. Further materials and electrically conductive available on request
product-contacted parts out of stainless steel, Ra < 0,6.

Benefits

powder transfer without releasing dust
safe handling and easy coupling with telescopic tube
easy to clean
economical and cost effective
the modular Müller system offers a solution for every filling task

USAGE-POWDER HANDLING OEB LEVEL 1+2

Standard version

Simple docking
Accurate positioning not necessary
Key to sketch:
- A - product
- B - into machine
- C - silicone elastomer cap
- D - system inlet tube / cone
- E - lip seal

Version with hopper pressed against lip seal

Simple docking if system becomes slightly pressurized
Key to sketch:
- A - product
- B - into machine
- C - silicone elastomer cap
- D - system inlet tube / cone
- E - lip seal pressed down

Telescopic version

Simple docking with telescopic intermediate tube
Key to sketch:
- A - product
- B - into machine
- C - silicone elastomer cap
- D - system inlet tube / cone
- E - lip seal
- F - telescopic intermediate tube

Charging a reactor

Key to sketch:
- A - drum
- B - hopper
- C - inlet elbow
- D - lift / swivel / invert column
- E - lip seal pressed down

Feeding a tablet press

Key to sketch:

A - drum
B - hopper
C - nest
D - supporting column
E - lip seal
F - tablet press
G - mobile lifting and inverting unit
H - variant with dust extraction connection

Charging / discharging a twin-shell tumbler

Key to sketch:

A - drum
B - hopper
C - inlet elbow
D - lift / swivel / invert column
E - lip seal
F - twin-shell tumbler
G - drum truck
H - centering guide
J - Type MC butterfly valve
K - drum lid with filling opening:
- K1 - Filling drum:
  - lid placed over drum
- K2 - Removing drum:
  - lid retracted on discharge nozzle

Charging / discharging a mill

Key to sketch:

A - drum
B - hopper
C - nest
D - supporting column
E - telescopic intermediate tube
F - mill
G - drum truck
H - drum lid with filling opening:
- H1 - Filling drum:
  - lid placed over drum
- H2 - Removing drum:
  - lid retracted on discharge nozzle
J - Nest swivels aside

Charging through a floor

Key to sketch:

A - hopper bin
B - carriage
C - Type MC butterfly valve
D - distribution manifold
E - Charging sequence:
- Step 1
  - Move hopper bin over charging opening
- Step 2
  - Docking with telescopic intermediate tube
- Step 3
  - Telescopic intermediate tube retracted
- Step 4
  - Opening covered

attachments

Silicone cap

System tube (flange ring)

fits on the flange rings, inlet parts and individual components specially developed for this purpose
guarantees a low-dust filling operation
can be cleaned with all usual detergents, even those containing alcohol
highly wear-resistant.

System tube (flange ring)

can be welded, flanged or otherwise mounted on the machine inlet
surface ground and brushed inside and outside, flange welded
standard height 50mm
diameter in DN120, 170, 250, 315 and 400

Telescopic tube

System tube (flange ring)

Telescopic tube

allows docking on a low-dust sleeve without lifting movement of the container or of the nozzle
with handles for easy handling

Falling tubes

Reducing fittings

Telescopic tube

system tubes suitable for every usual machine inlet
standard length 500mm
the edge of the falling tubes corresponds to the flange ring dimensions
also available with enlarged inlet

Reducing fittings

this system serves for joining the hopper outlet and the machine inlet
available in 60° or 90°

Inlet units

Reducing fittings

they consist of centering bridge, silicone cap, reducing fitting, falling tube, shut-off device and fastening elements, as well as flanges
the fastening elements are adapted to the machine
the inlet unit can easily and quickly fitted on angled, straight, oval or round inlets

Centering bridge

for pinpointed, reliable guidance of the hopper outlet nozzle into the inlet opening

Filling lid

Centering bridge

is attached to the machine outlet with the support brackets
for filling, the open drum is pushed under the filling lid, and the lid is lowered manually on the drum
the filling operation can start immediately and the expelled air can easily escape via the venting tube equipped with a filter cloth
with optional sight glass to be able to monitor the operation at any time

Suction hood

Centering bridge

Suction hood

The critical moment – in terms of dust exposure – is when decoupling the silicone cap and the telescopic tube. At tis time, powder residues can escape in the environment.

vacuums the dusts where they are produced
contributes to the complete elimination of visible dust residues that deposit outside of the plant

Suction ring

Suction hood

the mobile suction ring is simply pushed on the drum to be filled
the suction ring height can be exactly adjusted to drum height
a slot in the periphery of the suction ring then allows efficient dust extraction
easy to disassemble and thus very easy to clean
can be connected to the central extraction system or to any industrial vacuum cleaner

HANDLING

Low-dust filling

Functioning of the telescopic tube

the filling lid is simply, safely and quickly attached to the machine outlet with the support brackets
for filling, the open drum is pushed under the filling lid, which is then manually lowered onto the drum and secured with the drum clamping ring. The filling operation can start immediately.
no pressure is generated in the drum during filling, as the air can easily escape via the venting tube equipped with a filter cloth.
using in addition the suction hood allows further reduction of the residual dust formation
solutions for open filling are available for filling or emptying operations that cannot be performed in a closed system

Functioning of the telescopic tube

the telescopic tube or the nozzle plunges into the opening of the silicone cap. As soon as the tube has entered the cap, an absolutely low-dust connection is established
also slight pressure differences are possible thanks to an appropriate design
after nozzle removal, the remaining inlet opening can be sealed dust-free with a silicone cap without opening or with a clamping rig lid