Rational structure of screw extruding machines for peat fuel production презентация

Epifantsev K.V.
Supervisor from Russia: Prof. Dr.-Ing. habil. Мikhailov А.V.
Supervisor from Germany: Prof. Dr.-Ing. habil. J.-Uwe Repke

Bonn, 2011

RATIONAL STRUCTURE OF SCREW
EXTRUDING MACHINES FOR
PEAT FUEL PRODUCTION

tons
greatest stocks in the world
Major problems for the peat industry
The process of forming the peat mass is accompanied by low moisture,
relatively high required pressure for the destruction of residual fiber peat-forming plants and packing of processed peat mixture. 

K.EPIFANTSEV .RATIONAL STRUCTURE OF SCREW EXTRUDING MACHINES FOR PEAT FUEL PRODUCTION

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.RATIONAL STRUCTURE OF SCREW EXTRUDING MACHINES FOR PEAT FUEL PRODUCTION

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1 - Scales (0.01 g), 2 - PC Software Suite N100 for the analysis of the frequency converter, 3 - muffle microwave drying of individual granules, 4 -peat fuel pellets, 5 - different shaping dies, 6 - Extruder by mincing 722-2M, 7 - lever for submission of peat in the extruder chamber, 8 - frequency converter Hyundai N100, 9 - electronic moisture meter AnD, 10 - boiling dryer

K.EPIFANTSEV .RATIONAL STRUCTURE OF SCREW EXTRUDING MACHINES FOR PEAT FUEL PRODUCTION

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1-pusher, 2-cup loading, 3-screw channels, 4-machine frame, 5-coverof the drive, 6-drive enclosure, 7-gear pair, 8-engine, 9-pin screw clamp ring, 10-fit ring, 11-screw, 12-space roller,  13-screw shank, 14-formative die.

K.EPIFANTSEV .RATIONAL STRUCTURE OF SCREW EXTRUDING MACHINES FOR PEAT FUEL PRODUCTION

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SCREW EXTRUDING MACHINES FOR PEAT FUEL PRODUCTION

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1-fold processing
S=1379 sm²/g

3-fold processing
S=3778 sm²/g

5-fold processing
S=3872 sm²/g

11-fold processing
S= 4970 sm²/g

At high moisture content peat dry matter concentration is low. The interaction forces between particles are small. Research from Z. Chereshinski photos were taken of processed peat. In the presented picture you can see how the structure of peat with an increase in recycling.

SCREW EXTRUDING MACHINES FOR PEAT FUEL PRODUCTION

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Theoretical bases of technology of the lumpy, granulated peat fuel production have been developed by I.N. Chisty, M.P.Volarovich, S.N.Gamaynov and others. On the basis of this research it has been established that quality of finished goods, is mainly determined by the nature of peat and depends on character of structurization in the course of extraction, processing and drying of peat. Granulation of peat masses is accompanied by the complex physical and mechanical phenomena.

PRODUCTION

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PEAT FUEL PRODUCTION

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Fmax=1150N

67,6% moisture, Fmax=1400N

70 % moisture, Fmax=1200N

K.EPIFANTSEV .RATIONAL STRUCTURE OF SCREW EXTRUDING MACHINES FOR PEAT FUEL PRODUCTION

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65% moisture, Fmax=4893,45N

70 % moisture, Fmax=3306,950N

K.EPIFANTSEV .RATIONAL STRUCTURE OF SCREW EXTRUDING MACHINES FOR PEAT FUEL PRODUCTION

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65% moisture, Fmax=4104N

70 % moisture, Fmax=3094N

K.EPIFANTSEV .RATIONAL STRUCTURE OF SCREW EXTRUDING MACHINES FOR PEAT FUEL PRODUCTION

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65% moisture, Fmax=4526N

70 % moisture, Fmax=2823N

K.EPIFANTSEV .RATIONAL STRUCTURE OF SCREW EXTRUDING MACHINES FOR PEAT FUEL PRODUCTION

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current strength of the moisture of the processed material, which showed an increase in load at multiple processing. The specific energy consumption increases dramatically when the three-five times the processing in the laboratory setting screw.
3. Stand for studying the process of semi rigid extruded peat mixture allows you to define various parameters necessary for the investigation of energy and of forming pellets.

4. The granulation process analysis in srew machine shows that now among unsolved problems of peat fuel production are the following: Influence on the process power consumption and quality of ready peat fuel;

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K.EPIFANTSEV .RATIONAL STRUCTURE OF SCREW EXTRUDING MACHINES FOR PEAT FUEL PRODUCTION