The Easyfeeder Solo solids feeding system, type EBT-ST, is designed to feed the digester with renewable raw materials (RRM) such as grass and maize silage or similar biomass. But also partial amounts of more challenging materials such as all kinds of manure can be added without difficulty.
In the case of the EBT-ST solids feeding system, a loader fills the solid feedstock into the hopper. The feeding volume can be increased by installing an attachment on the hopper. Inside the hopper, the separating screws break up and pre-dose the feedstock. The main screw conveyor efficiently transports the feedstock into the digester in large volumes.
Already during the development of the proved and tested feeding technology, the focus has been on minimising energy consumption and wear. Minimal operating times ensure minimum wear and low power consumption. In a 2009 study conducted by the Landesanstalt für Landwirtschaft (Bavarian State Research Centre for Agriculture) in Freising, in which 10 biogas plants were tested over a long period of time, our feeding technology proved to be a real energy saver compared to solids feeders from other manufacturers.
Our feeding technology is characterised by a simple and robust design. This makes the solids feeder particularly user-friendly and easy to maintain.
The system can be controlled directly at the unit via an optional stand-alone control cabinet or using the main control system of the biogas plant depending on the specific project. The user only has to program the pause and operating times. If fitted with scales (optional), weight-based control is also possible.
All drives are equipped with adjustable load monitoring. The interval control with automatic reversing function in the event of overload ensures smooth and trouble-free operation. With 0.1 to 0.3 kW/m³, the EBT-ST is extremely energy-efficient.
The EBT-ST has been designed in line with the 2006/42/EC Machinery Directive and is conditionally approved for operation in potentially explosive atmospheres.
The basic unit comprises a trough with digester connection and a hopper reservoir for solids infeed. The latter is made up of multiple segments and can be combined with a push-off container for different capacities.
Seen from the front, the main screw conveyor and the right separating screw rotate in counter-clockwise direction and the left separating screw in clockwise direction (normal operation). Components of the basic unit that come into contact with the main screw conveyor are protected against abrasion by replaceable plastic inserts. The conveyor screws and planetary gears have a particularly sturdy and robust design. All parts prone to corrosion are made of V2A stainless steel by default.
The interval control provides for uniform, automated feeding by time or weight based programming. The load monitoring function (load control) is an important element of the control system in this context.
Optional features and plant attachments we deliver: Scales to feed by weight, hopper for easier filling and to increase the storage capacity to 13 m³, reinforced separating screws for high grass or fibre content
A push-off container can be retrofitted at any time to increase the storage volume.
Technical dataStorage volume: approx. 10 m³, with 4th ring (optional) approx. 13 m³
Conveyor capacity: 300 - 400 kg/min for silage
Power consumption: approx. 0.1 to 0.3 kWh per m³ conveyed material (1 m³ is equivalent to approx. 300-400 kg)
Weight: approx. 2700 kg
Dimensions: approximate length: 5400 mm, width: 2200 mm, height: 3900 mm
Main screw conveyor
Drive: electric motor via coaxial planetary gear
Drive capacity: 15 kW
Output speed: 18.5 rpm
Electrical connection: 400 V AC, 50 Hz
Drive: 2 parallel shaft gearmotors
Drive capacity: 1.1 kW
Output speed: 8.2 rpm (optionally increased output speed 5.4 rpm)
Electrical connection: 400 V AC, 50 Hz
|Datenblatt Einbringtechnik EBT Easyfeeder ST_DE|
|Data sheet Feeding System EBT Easyfeeder ST_EN|
|101 007 02 BRO EBT ST DE KD.pdf|