Important variables which influence the efficiency of a hydrodynamic separation of dense materials using a hydrocyclone are the dynamic viscosity at the inflow of the hydrocyclone and the number of passes through the hydrocyclone. According to the invention, the method and the device allow a control of the viscosity in the hydrocyclone as well as the number of passes through the hydrocyclone when separating dense materials from a slurry in conjunction with an anaerobic fermentation of the constituents of the slurry which can be fermented. By fermenting the constituents of the slurry which can be fermented, the content of a fermentation reactor has a lower viscosity than the slurry being fed. The viscosity in the inflow of the hydrocyclone is set by means of a controlled return flow from a fermentation reactor, and the number of passes is set by a controlled return flow from the outflow of the hydrocyclone. The slurry is pumped into a return flow from the fermentation reactor. The viscosity in the inflow of the hydrocyclone is controlled by the throughput of the return pump on the basis of the content of solids of the slurry. The number of passes through the hydrocyclone is controlled via the ratio of the feed of the hydrocyclone to the feed of the fermentation reactor from which dense materials are removed. Because the process of diluting the slurry with the content of the fermentation reactor does not have an influence on the hydraulic dwell time in the fermentation reactor, the fermentation reactor can be designed for a smaller accumulation of slurry.
Important variables which influence the efficiency of a hydrodynamic separation of dense materials using a hydrocyclone are the dynamic viscosity at the inflow of the hydrocyclone and the number of passes through the hydrocyclone. According to the invention, the method and the device allow a control of the viscosity in the hydrocyclone as well as the number of passes through the hydrocyclone when separating dense materials from a slurry in conjunction with an anaerobic fermentation of the constituents of the slurry which can be fermented. By fermenting the constituents of the slurry which can be fermented, the content of a fermentation reactor has a lower viscosity than the slurry being fed. The viscosity in the inflow of the hydrocyclone is set by means of a controlled return flow from a fermentation reactor, and the number of passes is set by a controlled return flow from the outflow of the hydrocyclone. The slurry is pumped into a return flow from the fermentation reactor. The viscosity in the inflow of the hydrocyclone is controlled by the throughput of the return pump on the basis of the content of solids of the slurry. The number of passes through the hydrocyclone is controlled via the ratio of the feed of the hydrocyclone to the feed of the fermentation reactor from which dense materials are removed. Because the process of diluting the slurry with the content of the fermentation reactor does not have an influence on the hydraulic dwell time in the fermentation reactor, the fermentation reactor can be designed for a smaller accumulation of slurry.
Important variables which influence the efficiency of a hydrodynamic separation of dense materials using a hydrocyclone are the dynamic viscosity at the inflow of the hydrocyclone and the number of passes through the hydrocyclone. According to the invention, the method and the device allow a control of the viscosity in the hydrocyclone as well as the number of passes through the hydrocyclone when separating dense materials from a slurry in conjunction with an anaerobic fermentation of the constituents of the slurry which can be fermented. By fermenting the constituents of the slurry which can be fermented, the content of a fermentation reactor has a lower viscosity than the slurry being fed. The viscosity in the inflow of the hydrocyclone is set by means of a controlled return flow from a fermentation reactor, and the number of passes is set by a controlled return flow from the outflow of the hydrocyclone. The slurry is pumped into a return flow from the fermentation reactor. The viscosity in the inflow of the hydrocyclone is controlled by the throughput of the return pump on the basis of the content of solids of the slurry. The number of passes through the hydrocyclone is controlled via the ratio of the feed of the hydrocyclone to the feed of the fermentation reactor from which dense materials are removed. Because the process of diluting the slurry with the content of the fermentation reactor does not have an influence on the hydraulic dwell time in the fermentation reactor, the fermentation reactor can be designed for a smaller accumulation of slurry.
The invention relates to a device and to a method for the hydrodynamic removal of dense materials from a suspension, said device comprising a hydrocyclone (1), which holds the suspension, a classifying tube (2), which adjoins the hydrocyclone, and a storage chamber (3), which holds the removed dense materials, wherein a flushing water flow to the classifying tube (2) and a flushing water flow to the storage chamber (3) are provided, which can be controlled in a closed-loop or open-loop manner by means of a control element provided at the feed to the classifying tube and a control element provided at the feed to the storage chamber, respectively.
B04C 5/14 - Construction of the underflow ductingApex constructionsDischarge arrangements
B04C 9/00 - Combinations with other devices, e.g. fans
B03B 9/00 - General arrangement of separating plant, e.g. flow sheets
B03B 9/06 - General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
B03B 13/02 - Control arrangements specially adapted for wet- separating apparatus or for dressing plant, using physical effects using optical effects
B03B 13/04 - Control arrangements specially adapted for wet- separating apparatus or for dressing plant, using physical effects using electrical or electromagnetic effects
5.
HYDRODYNAMIC REMOVAL OF DENSE MATERIALS FROM A SLURRY
The invention relates to a device and to a method for the hydrodynamic removal of dense materials from a suspension, said device comprising a hydrocyclone (1), which holds the suspension, a classifying tube (2), which adjoins the hydrocyclone, and a storage chamber (3), which holds the removed dense materials, wherein a flushing water flow to the classifying tube (2) and a flushing water flow to the storage chamber (3) are provided, which can be controlled in a closed-loop or open-loop manner by means of a control element provided at the feed to the classifying tube and a control element provided at the feed to the storage chamber, respectively.
The invention relates to a device and to a method for the hydrodynamic removal of dense materials from a suspension, said device comprising a hydrocyclone (1), which holds the suspension, a classifying tube (2), which adjoins the hydrocyclone, and a storage chamber (3), which holds the removed dense materials, wherein a flushing water flow to the classifying tube (2) and a flushing water flow to the storage chamber (3) are provided, which can be controlled in a closed-loop or open-loop manner by means of a control element provided at the feed to the classifying tube and a control element provided at the feed to the storage chamber, respectively.
The invention relates to a pulper and to its method for recycling wastes and/or product residuals. The pulper comprises a tank is which a rotor is provided for defibrating the stock mixture to be recycled, as well as a screen for drawing off the defibrated outfeed from the tank, the rotor being powered by an electric motor comprising a drive shaft in active transmission with the rotor. In accordance with the invention the electric motor is configured as a three-phase synchronous motor for operation in a speed range from 0 to 1000 rpm. It is connected to the output of a frequency inverter controlled by a controller, the output of the drive shaft being directly connected to the rotor.
The invention relates to a pulper and to its method for recycling wastes and/or product residuals. The pulper comprises a tank is which a rotor is provided for defibrating the stock mixture to be recycled, as well as a screen for drawing off the defibrated outfeed from the tank, the rotor being powered by an electric motor comprising a drive shaft in active transmission with the rotor. In accordance with the invention the electric motor is configured as a three-phase synchronous motor for operation in a speed range from 0 to 1000 rpm. It is connected to the output of a frequency inverter controlled by a controller, the output of the drive shaft being directly connected to the rotor.
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Installations et équipements de conditionnement et de
traitement de substances biogènes, de mélanges de déchets et
d'eaux usées, ainsi que leurs pièces. Erection d'installations et équipements de conditionnement
et de traitement de substances biogènes, de mélanges de
déchets et d'eaux usées. Conditionnement et traitement de substances biogènes, de
mélanges de déchets et d'eaux usées. Recherche scientifique et industrielle dans le domaine des
techniques environnementales; services d'ingénieurs dans le
domaine des techniques environnementales, en particulier
planification d'installations et d'équipements de
conditionnement et de traitement de substances biogènes, de
mélanges de déchets et d'eaux usées.
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Installations et équipements de conditionnement et de
traitement de substances biogènes, de mélanges de déchets et
d'eaux usées, ainsi que leurs pièces. Erection d'installations et équipements de conditionnement
et de traitement de substances biogènes, de mélanges de
déchets et d'eaux usées. Conditionnement et traitement de substances biogènes, de
mélanges de déchets et d'eaux usées. Recherche scientifique et industrielle dans le domaine des
techniques environnementales; services d'ingénieurs dans le
domaine des techniques environnementales, en particulier
planification d'installations et d'équipements de
conditionnement et de traitement de substances biogènes, de
mélanges de déchets et d'eaux usées.
01 - Chemical and biological materials for industrial, scientific and agricultural use
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
19 - Non-metallic building materials
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Plants for separating and treating biogenous wastes from all sources, and components for such plants, namely wet pre-treatment hydropulping equipment for separation of biogenous from non-biogenous wastes, contaminant removal and containment equipment, hydrocyclone equipment for separation of small particulates, rake fractioning equipment namely presses and dryers; anaerobic biowaste digestion equipment namely hydrolysis reactors, methane reactors, fixed film reactors, heat exchangers, centrifuges, waste water buffers, waste water treatment units, biogas containment, utilization and transmission equipment. (1) Reprocessing and treatment of biogenous substances, waste mixtures and waste water; scientific and industrial research in the field of environmental technology; services of engineers in the field of environmental technology, in particular planning and construction of installations and equipment for reprocessing and treatment of biogenous substances, waste mixtures and waste water.
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Installations and equipment for reprocessing and treatment of biogenous substances, waste mixtures and waste water, as well as parts thereof. Services of engineers in the field of environmental technology, in particular construction of installations and equipment for reprocessing and treatment of biogenous substances, waste mixtures and waste water. Reprocessing and treatment of biogenous substances, waste mixtures and waste water. Scientific and industrial research in the field of environmental technology; services of engineers in the field of environmental technology, in particular planning of installations and equipment for reprocessing and treatment of biogenous substances, waste mixtures and waste water.
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Installations and equipment for reprocessing and treatment of biogenous substances, waste mixtures and waste water, as well as parts thereof. Construction of installations and equipment for reprocessing and treatment of biogenous substances, waste mixtures and waste water. Reprocessing and treatment of biogenous substances, waste mixtures and waste water. Scientific and industrial research in the field of environmental technology; services of engineers in the field of environmental technology, in particular planning of installations and equipment for reprocessing and treatment of biogenous substances, waste mixtures and waste water.
