WAM GmbH

The BA Bin Activator is a device of tapered conical shape that due to vibration facilitates material flow from hoppers or silos. It consists of a seamless carbon or stainless steel cone manufactured on a sheet metal lathe, a seamless SINT® engineering polymer seal with integrated upper and lower flange, suspensions for connection of the Bin Activator with the silo, as well as one or two electric vibrators.

Function

To fit the BA Bin Activator, the silo cone has to be shorter than usual, leaving a wide outlet section. A flange supplied before or together with the Bin Activator is welded to the silo outlet on site. Special suspensions and a seamless flanged SINT® engineering polymer seal form a flexible connection between silo and Bin Activator. One or two electric vibrators fitted to the unit generate vibration of the Bin Activator every time the feeding device beneath the silo is started for material extraction. During operation the Bin Activator describes a gyratory movement which is transmitted to the material inside the silo. The result is smooth material flow through the Bin Activator outlet into the connected feeder.
BA Bin Activators are used in various industrial applications to facilitate discharging of powdery or granular materials from silos or hoppers. The use of this equipment ensures optimum feeding of the material and causing ¿mass flow¿ inside the silo and avoiding bridging or rat holing phenomena.

Performance & Technical Features – Benefits

• Q = 5 ~ 320 m3/h (3 ~ 190 cfm)
• Range: from Ø 400mm (16 in) to 3,000mm (10 ft)
• Construction material: Carbon steel, 304L / 316L stainless steel
• Robust, compact design
• Range of seals including FDA-approved food-grade version and high-temperature version
• Wide range of baffle plates in accordance with application
• Low power requirement
• Extra durable suspensions and seal
• 70% less welds than in traditional bin activators
• Seamless heavy-duty activator cone

The MBF Micro-Batch Feeder for continuous volumetric feeding of powdery or granular materials consists of a steel-reinforced SINT® engineering polymer body (optionally body entirely manufactured in stainless steel), a horizontally mounted rotating agitator tool, a feeder screw beneath the agitator tool, a feeder pipe enclosing the protruding feeder screw, one drive unit each for agitator and feeder screw.
Tests on product flow and material stress have been carried out to establish optimum body geometry. Agitator and feeder tool geometry and materials have also been tested before choosing an optimal steel and engineering SINT® polymer composite.
MBF series Micro-Batch Feeders are supplied in food-grade versions with FDA-approval on request.

Function

MBF series Micro-Batch Feeders for powder and granular product feeding are particularly suitable for poorly flowing materials which tend to clog, along with adhesive products.
Fed through a bag opening hopper, a bulk bag discharger, or another feeding device, the agitator tool manages to keep the material flowing reducing at the same time the possibility of formation of lumps or bridges.
The size of the product particles is of utmost importance when choosing the type of feeder screw. For example, fine, heavy materials call for tapered screws with reduced pitch flights, while granular, lighter materials require standard pitch cylindrical screws. Poorly flowing products with cohesion or bridging problems are homogeneously fed into the feeding zone by the blending shaft which is shaped according to the product properties.
Depending on the user's individual requirements, MBF Micro-Batch Feeders can be supplied with alternative feeder screws and blending tools and with various accessories.
MBF Micro-Batch Feeders have been successfully operating in the following industries: food, building, plastics, chemicals, packaging, environmental technology.

Performance & Technical Features – Benefits

• Body in SINT® engineering polymer from a casting process complete with stainless steel end plates (alternatively entire feeder in stainless steel with all components being interchangeable with the SINT® version)
• Agitator and feeder tool with separate drive units
• 3 sizes available; feed rates from 3dm3/h to 4,000dm3/h (0.001 to 2.4 cfm)
• Internal geometry of the body guarantees free flow of difficult materials
• Minimum clearance between screw flight and feeder pipe ensuring high precision feeding
• Due to independent drive units possible to select different drive powers and speeds for blending shaft and feeder screw
• Wide range of interchangeable feeder tools in SINT® engineering polymer or stainless steel
• Flexibility in choice of micro-batch feeder most suitable for material concerned
• Vast range of interchangeable components
• Easy and quick maintenance due to small number of components
• High degree of homogeneity of the fed material
• Easy and quick cleaning due to engineering polymer non-stick surface and quick access panel

SILOTOP ZERO is a cylindrically shaped dust collector for venting pneumatically filled silos. Its stainless steel body contains vertically mounted POLYPLEAT elements made from ABSOLUTE filter media. The air jet cleaning system is integrated into the hinged weather protection cover.

Function

Dust separated from the airflow by special ABSOLUTE POLYPLEAT filter elements drops back into the silo after an integrated automatic pulse-jet air cleaning system inside the weather protection cover has removed it from the filter elements.

Features

• Dust emission < 1mg/Nm3
• Compact 800 mm (30 in) diameter stainless steel body with bottom flange
• 14 m2 (151 sq ft) filter surface
• Maintenance height ≤ 1,100 mm (3.6 ft)
• High filtration efficiency due to ABSOLUTE EPA-CLASS filter media POLYPLEAT elements
• Maintenance-free air jet cleaning unit integrated into hinged weather protection cover
• Safe weather protection cover with lockable quick release
• Quick filtering element removal

Benefits

• Low air consumption
• Holding peak flow rates of 1,600 Nm3/h
• Compact design
• Perfect accessibility
• Filtering element replacement within a few minutes by one person
• Interchangeable with SILOTOP R03 as a whole

Options

• 24.5 m2 (264 sq ft) filter surface
• Weld-on bottom ring
• Multifunctional electronic differential pressure meter
• Winter protection for solenoid valves

Emission sampling kit

The modular TX Tubular Screw Conveyor system is highly versatile. TX Screw Conveyors are manufactured in stainless steel with a suitable surface finishing grade appropriate for the application. Manufacture of the fabricated components is carried out on machines that guarantee a perfectly smooth surface due to which material residue is reduced to the minimum. TX Tubular Screw Conveyors are made up from a tubular trough that is equipped with at least one inlet and outlet spout, an end plate at each tube end, helicoid screw flighting welded on a centre pipe with a coupling bush at each end, two end bearing assemblies complete with adjustable shaft sealing unit, and a number of intermediate hanger bearings depending on the overall length of the screw conveyor. Furthermore, TX Tubular Screw Conveyors are equipped with a gear motor that is suitable for the application. Depending on the material to be handled TX Tubular Screw Conveyors come in a light or medium-heavy-duty design.

TX Screw Conveyors are available with ATEX, zone 22 certification.

Function

The TX Tubular Screw Conveyor system offers a variety of solutions for conveying or feeding powdery or granular materials. TX Tubular Screw Conveyors are suitable for applications in which any contamination of the material handled has to be strictly avoided and in which absolute cleanliness and perfect resistance to corrosion is required.

In particular, TX Tubular Screw Conveyors are used in environmental technology, in flour and animal feed milling, in food processing and packaging, in plastics and chemicals, as well as in the pharmaceutical industry.

Performance & Technical Features – Benefits

• Standard design in 304 L or 316 L stainless steel
• Polygonal or cylindrical inlet and outlet spouts according to WAM® standard
• End bearing assemblies with externally adjustable shaft seals (stuffing box, air or gas-purged, others)
• Wide range of intermediate hanger bearings appropriate for the application (also self-lubricating)
• End flanges welded orthogonally on the trough on special jigs
• End plates carrying flanged end bearing assemblies and closing off the trough
• Modular length helicoid screw flighting with square or variable pitch welded on centre pipe with shaft coupling each end
• Screw sections connected by splined or bolted shaft couplings
• Screws accurately balanced
• Bearing assemblies entirely designed by WAM® to offer the right product for each application
• WAM® drive units with integrated end bearing assembly and adjustable shaft sealing unit (screws run perfectly balanced due to drive unit directly mounted on screw pipe; substitutes coupling or chain transmission with special drive mount)