Vertical Biobull BIOS
- Special features
|Power range||1 – 15 kW|
|Mains frequency||50 or 60 Hz|
|Circulating rate||up to 22,600 m³/h|
|Propeller diameter||2,650 mm, 1,500 mm or as required|
|Shaft cross-section||Solid from 100 x 100 mm
up to 200 x 200 mm
|Temperature of medium||max. 60 °C|
|Bearing bracket||Stahl / GG25|
|Bearing bracket||Stainless steel 1.4057|
|Agitator shaft||Stainless steel 1.4307 (V2A) or 1.4571 (V4A), high-strength steel with polyolefin protective jacket|
|Parts flushed with gas in the||Stainless steel 1.4571 (V4A)|
|digester Propeller (dia. 2,650 mm)||High-strength, wear-resistant polymer with steel core|
|Propeller (dia. 1,500 mm)||Stainless steel 1.4301 (V2A)|
|Parts outside the digester||Galvanised, painted or coated|
- ATEX, IECEx and UL/CSA-certified versions for use in explosion protection zones 1 and 2
- Frequency inverter with parameterised safety software (torque limiting, acceleration times, frequency limitations, etc.)
- Optional: Vibration monitor streisal SafeBox
MAXIMUM CIRCULATING RATE
Slow-running large-propeller agitators of the Vertical Biobull BIOS type enable large quantities of fluid to be circulated in tanks with largely constant filling levels.
They are used above all in biogas generation, in digestion towers at municipal or industrial sewage treatment plants and in other applications with difficult substrates (fibrous constituents, maximum dry matter contents, etc.). The maximum medium temperature is 60 °C.
POTENTIALLY EXPLOSIVE ATMOSPHERES
The agitators are available with various ATEX, IECEx and UL/CSA ignition protection types for use in explosion protection zones 1 or 2.
CONSTANTLY HIGH AGITATING PERFORMANCE
With two propellers mounted at different heights, the agitators generate a large hydraulic output. The substrate can flow in without obstruction because the agitating elements are not covered by any obstructive built-in components.
The design of the propeller shape, the large hub diameter and smooth, tangential transition to the propeller blade prevent material from wrapping itself around the blades.
LOWEST SELF-GENERATED ELECTRICITY REQUIREMENT
The propeller geometry with its three dimensional profile has been optimised in the fluid mechanics laboratory; this and the large propeller diameters combined with low speeds of rotation mean the agitators generate maximum thrust while drawing very little power.
As a result, energy and operating costs are significantly lower!
MAXIMUM EASE OF SERVICING
Important wearing parts are mounted externally and are therefore easy to access for maintenance and servicing.
The agitator shaft is sealed by a gas-tight siphon seal with contactless operation.
Depending on the installation situation, the entire agitator can be removed from the tank without disassembly.