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Plant and method for producing finely divided fuels from solid or pasty energy raw materials by means of roasting and pulverizing

A roasting and energy technology used in roasting

Inactive Publication Date: 2015-12-09
ТІССЕНКРУПП УДЕ ҐМБГ +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thus, in the above examples from the prior art, crushing or grinding inevitably requires an additional process step and thus additional mechanical

Method used

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  • Plant and method for producing finely divided fuels from solid or pasty energy raw materials by means of roasting and pulverizing
  • Plant and method for producing finely divided fuels from solid or pasty energy raw materials by means of roasting and pulverizing
  • Plant and method for producing finely divided fuels from solid or pasty energy raw materials by means of roasting and pulverizing

Examples

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Embodiment Construction

[0050] Biomass 2 is conveyed from raw material tank 1 into impact reactor 5 via screw conveyor 3 and star wheel feeder 4 . Here it is pulverized by the rotor 7 . Calcination gas is fed in the bottom of the impactor 5 in the form of hot recirculation gases 8a and 8b. The pulverized, dried, calcined particles 11 are discharged from the impact reactor 5 together with the gas stream 9 through a sifter 6, preferably a motor-driven rotary sieve, and are directed to the particle separator 10 (shown here as a centrifugal separator).

[0051] An advantage here is that the use of the sieve 6 allows adjustment of the size of the particles discharged together with the gas flow 9 . It may also be advantageous to dispense with a motor-driven rotary sieve and use screens or perforated plates which allow size control of the solid particles contained in the gas stream 9 .

[0052] Depending on the intended use of the pretreated fuel, the target particle size of the torrefied particles 11 is...

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Abstract

An apparatus and method for creating a fine-grained fuel from solid or paste-like raw energy materials by torrefaction. The apparatus including an impact reactor having a rotor and impact elements which is temperature resistant up to 350 degrees Celsius, a feed device for hot circulation gas in the lower region of the impact reactor, a feed device for solid or paste-like raw energy materials in the head region of the impact reactor. The apparatus further including at least one withdrawal device for a gas flow having comminuted and torrefacted raw energy particles and a separation and withdrawal device for crushed and torrefacted raw energy particles from the gas flow taken out of the impact reactor.

Description

technical field [0001] The present invention relates to the thermal pretreatment, ie torrefaction, of solid fuels containing carbon and hydrogen in an impactor reactor. In the following, said fuels (which may also have a pasty or viscous consistency) are referred to as solid or pasty energy feedstocks and include, for example, biogenic and other highly reactive fuels, fossil fuels and residues. Pastes refer to all materials comprising a mixture of solid and liquid components, examples being sludge and water-based or solvent-based industrial residues or energy-containing liquids such as oily substances or lubricants. There is a general drive to develop the use of renewable energy and to recycle waste and residues, where thermal gasification allows particularly efficient utilization from an energy and material point of view. Entrained bed gasification is particularly advantageous, the plants for which are usually of great capacity and also run on coal. The invention also enabl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/44
CPCC10L5/44C10B49/02C10B53/02C10J3/482C10J2300/0903C10J2300/16C10L9/083Y02E50/10Y02E50/14Y02E50/15Y02E50/30Y02P20/129
Inventor 拉尔夫·阿伯拉罕斯蒂芬·海莫尔拉尔夫·舍费尔
Owner ТІССЕНКРУПП УДЕ ҐМБГ
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