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Albrecht Ingenieurbüro GmbHALDAK GmbH VibrationstechnikHAVER & BOECKERKeyser & Mackay
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Promoting the flow in silos and cleaning the silo walls Flow in a silo can be promoted with a hammer. But the use of pneumatic knockers is a much better way. This gives maximum impact, without damage.
Promoting the flow in silos and cleaning the silo walls
Flow in a silo can be promoted with a hammer. But the use of pneumatic knockers is a much better way. This gives maximum impact, without damage. APPLICATION The Pneumatic Knocker is used for bulk goods with flow problems, such as bridging, funnel flow and stagnant zones, when high speed shakers and vibrators with soft sine-shaped oscillations are no longer effective. Better than a hammer The effect of the knocker is comparable to the infamous "silo hammer", but without the damage a hammer can do. Dents by hammers wil complicate the material flow even more. And cracks and ruptures can also occur. The effectiveness of the knocker is evaluated according to the following rule: If the product can be knocked off or made to flow with a hand hammer, the Pneumatic Knocker is also effective. Mounting of the knocker The knocker is normally controlled by an electrical control system with a solenoid valve. Within the area where the knocking takes place there should be enough space for the impact to expand in all directions. Reinforcements of the silo walls and additional ribs should be avoided, as this increases
04.02.2022  |  2887x  |  Specialist article  |   | 
Further development of (intermittent) pneumatic knockers The new series are compact in design,  flexible in use and suitable for single-stroke control as well as intermittent self-control.
Further development of (intermittent) pneumatic knockers
The new series are compact in design, flexible in use and suitable for single-stroke control as well as intermittent self-control. FKL-in series In this further developed pneumatic knocker, a particularly compact design was emphasized. Moreover, the pneumatic knocker is flexible usable – suitable for single-stroke control as well as intermittent self-control. Impact force Using the single-stroke control, the impact force is adjustable steplessly by regulating the inlet pressure. In the case of intermittent self-control, the user has three levels available to adjust the impact force. Pulsing In cases of using single-stroke control, the impact is triggered by opening and closing an upstream 3/2-way valve (optional). The valve is controlled, for example, by a PLC. Only an optional automatic self-control (PST FKL -si and/or -in) is required for intermittent self-control. When pressure arrives at the system, the pulsing can be adjusted at the throttle of the PST. The pneumatic knocker is supplied with a base plate which is used to attach the knocker and transmit the impact impulse.
10.01.2022  |  689x  |  Product news  | 
Cardox: silo blockage clearing system A controlled carbon dioxide explosion with pressures up to 3000 Bar breaks compacted material in silos and storage vessels
Cardox: silo blockage clearing system
A controlled carbon dioxide explosion with pressures up to 3000 Bar breaks compacted material in silos and storage vessels Our Cardox® system breaks up compacted material in storage vessels by suddenly releasing liquid carbon dioxide. This method uses high strength, reusable steel tubes filled with liquid carbon dioxide (CO2). This is activated by a small electric charge causing it to expand and create a powerful force of up to 3,000 bar. Several tonnes of material can be detached with a single detonation. The Cardox® system can even be used while production continues as normal if the vessels have been fitted out with permanent tube sockets.
18.11.2021  |  857x  |  Product description  | 
Fluidization as solution for flow problems Fluidization of bulk materials with SIPERM aeration components as a sloution to several flow problems
Fluidization as solution for flow problems
Fluidization of bulk materials with SIPERM aeration components as a sloution to several flow problems Storage, mixing and discharge of bulk materials with average particle sizes of less than 0.2 mm frequently causes problems because these bulk materials do not flow freely and therefore are almost impossible to discharge. They tend to agglomerate and form bridges and tunnels, particularly around the silo outlet, thereby obstructing the free flow of the material from the storage vessel. Such low flowable materials include fine plastic powders, flour, pigments, soot, cement, pesticides etc. Fluidization the solution A proven solution for the problem-free handling of bulk solids with average grain sizes between 10 and 200 µm is the fluidization of the material using pneumatic aeration units made from highly porous SIPERM® materials. You can chose between * Custom-made aeration bottoms, cones or inserts which we manufacture to your specifications * Plate material for adapting to your own systems * Standard aeration pads which can easily be retrofitted into existing systems
24.08.2021  |  1400x  |  Product description  | 
New Multiflux Mixer GMS C from Gericke
New Multiflux Mixer GMS C from Gericke
Gericke’s Multiflux® mixer GMS creates with its 2 horizontal, overlapping mixing rotors a fluidized bed. As a mixing process is based on the exchange of the particles in a volume by convection, this principle is very efficient for the energy-saving and product respecting mixing. The GMS mixer is known as long-lasting and reliable process equipment. In order to complete its existing range, Gericke has made a redesign of the GMS Multiflux mixer that responds to the increasing demand for hygienic execution in the food and pharmaceutical industry. The new model is called GMS C. C stands for cantilevered and refers to the 2 shafts that are cantilevered, offering many advantages. Not only the number of sealing is divided by 2. Due to the construction, the front side of the mixer can be opened entirely. In the high end version, named the GMS ECD, the operator can pull out the complete drive and mixing shafts out of the body. Large lateral doors offer an easy access
05.05.2011  |  8353x  |  Product news  | 
Aeration Spot - Siperm R
Aeration Spot - Siperm R
Problems are often experienced when handling powdery and fined-grained bulk materials, such as flour, cement, pigments or fine plastic powders. Storage, mixing and discharge are difficult because these fine-grained powders do not flow freely. They tend to agglomerate and form bridges or tunnels around the silo outlet and, therefore, can only be removed effectively using some sort of discharge aid. A highly efficient solution to these problems are pneumatic Siperm-aeration components. They are supplied complete with all the necessary hardware (seal, washer, nut) and can also be retrofitted into existing systems. The SIPERM-R spots have a diameter of 100 mm. The pads are available as standard in sizes of 125 x 250 mm and 125 x 500 mm. Of course we also manufacture pads in special sizes.
11.03.2011  |  13253x  |  Product news  | 
Aeration pads and inserts - Siperm R, Siperm B, Siperm HP
Aeration pads and inserts - Siperm R, Siperm B, Siperm HP
Problems are often experienced when handling powdery and fined-grained bulk materials, such as flour, cement, pigments or fine plastic powders. Storage, mixing and discharge are difficult because these fine-grained powders do not flow freely. They tend to agglomerate and form bridges or tunnels around the silo outlet and, therefore, can only be removed effectively using some sort of discharge aid. A highly efficient solution to these problems are pneumatic Siperm-aeration components. They are supplied complete with all the necessary hardware (seal, washer, nut) and can also be retrofitted into existing systems. Ready-to-install aeration pads are supplied complete with all the necessary hardware (seal, washer, nut). They are ideally suited for installation at those sites where access is limited or difficult. The pads are available as standard in sizes of 125 x 250 mm and 125 x 500 mm. Of course we also manufacture pads in special sizes.
11.03.2011  |  14838x  |  Product news  | 
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