Reactor for manufacturing biogas from organic raw material using anaerobic digestion

A reactor for manufacturing biogas from organic raw material using anaerobic digestion, comprising:

• the reactor having a tubular reaction chamber with a substantially rectangular cross-section composed of a bottom, walls and a ceiling for processing raw material into end products, and agitation and transfer equipment arranged in the reaction chamber, the reactor further having an external support frame structure arranged on the outer surface included in the reaction chamber for stiffening and supporting the reaction chamber externally against forces generated by raw material;
• the external support frame structure comprising
• vertical columns arranged at a distance from each other in the lengthwise direction relative to the reactor on both sides of the reactor,
• transverse support structures for connecting the vertical columns on each side of the reaction chamber in the transverse direction relative to the reactor,
• longitudinal support structures for connecting the vertical columns to each other in the lengthwise direction relative to the reactor on each side of the reactor, and each vertical column has two vertical supports at a distance from each other in the transverse direction relative to the reaction chamber and transverse supports arranged between the vertical supports.