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Biogas plant supplying biomass-water suspension to horizontal, stirred digester tank, has feed chamber united to end face and separated from it by partitions
Biogas plant supplying biomass-water suspension to horizontal, stirred digester tank, has feed chamber united to end face and separated from it by partitions
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机译:沼气厂将生物质-水悬浮液供应到水平的搅拌式消化池中,其进料室与端面相连,并通过隔板与之隔开
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摘要
The feed chamber (2) is united with the digester (8) at one end face, and separated from it by partitions (5a, 5b). The upper partition (5a) is spaced from the base (15) below a set minimum level (23) of the suspension in the digester. With the lower partition (5b) it forms a passage (16). The lower partition is sealed with the base, forming a retention volume of the feed chamber, separated from the fermenter and with an overflow into it. The inlet chamber has a filling opening (17) at the top, where biomass and water are charged, displacing the suspension contained, the level (23) being lower than the upper edge of the digester wall (1). The fermenter is trough-shaped, covered by a gas-tight covering (7). The cross section of the trough is angular or rounded at the base. It is single- or double-walled. The horizontal shaft (14) of the stirrer (10) is carried in bearings mounted in the far end wall, and in one partition. The passage is situated below, above or at the height of the shaft bearing. The upper opening of the digester is a sheet, a swinging- or removable cover. At the top a gas removal hood or line is fitted. The feed chamber is of the same cross section as the digester. An outlet opening in the base or a wall, removes digested biomass. A stirrer and/or cutter in the feed chamber forms a suspension. Suspension is fed into the digester only by equalization of levels. The outer end face of the feed chamber is angled or vertical. Further details and variants of the basic design are provided. A digester heating circuit is included.
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