Biomass dry distillation furnace and charcoal preparation method

A technology of biomass and retort furnace, which is applied in special forms of retort, retort gas discharge device, coke oven, etc. It can solve the problems of low heat recovery utilization rate, poor quality of retort products, and uncontrollable discharge speed, etc., and achieve improvement Heat recovery rate, effect of quality assurance

Active Publication Date: 2018-03-09
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the feeding method of the existing biomass dry distillation is bulk feed, the continuous dry distillation effect is poor, the discharge speed is uncontrollable, the heat recovery utilization rate is low, and the quality of the dry distillation product is poor

Method used

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  • Biomass dry distillation furnace and charcoal preparation method
  • Biomass dry distillation furnace and charcoal preparation method
  • Biomass dry distillation furnace and charcoal preparation method

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Embodiment 1

[0035] This embodiment provides a biomass carbonization furnace, such as figure 1 , figure 2 with image 3 As shown, including: biomass loading system, dry distillation system, dry distillation gas collection system and biochar discharge system.

[0036]Biomass loading system, comprising: feeding device 10, sealing section 11 arranged at the lower part of the feeding device 10; biomass is pre-dried in the sealing section 11 by using the heat of the retort furnace to ensure that the biomass is The water content of the system is reduced by 5-10%. At the same time, the water vapor or inert gas generated by the biomass itself acts as an auxiliary seal to isolate the outside air from entering and avoid the continuous upward transfer of heat in the carbonization system.

[0037] The retort system includes: a retort furnace body 1, a retort chamber 2 arranged inside the retort furnace body 1, a combustion chamber vertical fire passage 4, and a fire chamber 4 arranged at the upper ...

Embodiment 2

[0042] This embodiment provides a method for preparing biochar using the biomass carbonization furnace described in Embodiment 1, comprising the following steps:

[0043] S1. Biomass loading step

[0044] The biomass material is bundled and / or compressed into tangible biomass blocks 16, and sent into the feed device 10 through conveying equipment, such as conveyors and elevators, and then compacted, and the biomass blocks 16 Buffer and seal at the sealing section 11, and charge to the dry distillation system; the density of the biomass block 16 is 0.1-1.1g / cm 3 , relative dry basis moisture content of 2 to 40%. As an embodiment of the present invention, in this embodiment, the biomass block 16 density is 0.6g / cm 3 , The relative dry basis moisture content is 21%.

[0045] S2. Biomass dry distillation step

[0046] Biomass blocks 16 are continuously and evenly moved downwards by their own gravity during the dry distillation in the dry distillation system, and biochar is obt...

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Abstract

The invention relates to the field of comprehensive utilization of biomass energy and discloses a biomass dry distillation furnace and a charcoal preparation method. The biomass dry distillation furnace comprises a biomass loading system, a dry distillation system, a retorting gas collection system and a charcoal discharge system, wherein a first humidifying apparatus is arranged in the charcoal discharge system; the charcoal enters the charcoal discharge system; the first humidifying apparatus sprays a humidifying medium; the humidifying medium reacts with the charcoal to produce water gas while cooling the charcoal. According to the biomass dry distillation furnace disclosed by the invention, high-efficiency externally-heated biomass dry distillation equipment can realize batch feeding,continuous dry distillation and continuous discharging of biomass blocks, has loading and closing functions and also has retorting gas collection and maximum heat reutilization functions. Moreover, the invention further provides a high-quality charcoal preparation method.

Description

technical field [0001] The invention relates to the field of comprehensive utilization of biomass energy, in particular to a biomass dry distillation furnace and a method for preparing biochar. Background technique [0002] Biomass is recognized as one of the most potential non-traditional fossil resources in the world. Because of its renewable, low pollution and wide distribution, it has become a major development and utilization direction for sustainable energy development in my country. The pyrolysis gas produced by biomass carbonization has high calorific value and large production capacity, and can be used for domestic gas, etc. At the same time, the produced biochar, tar and wood vinegar are also very important chemical raw materials. Therefore, biomass carbonization pyrolysis technology has become an important development direction of biomass energy utilization. [0003] Biomass dry distillation technology is a method of thermally decomposing biomass to obtain a vari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/08C10B39/04C10B27/00C10B57/00
CPCC10B27/00C10B39/04C10B53/08C10B57/00
Inventor 白守明赵迪李敬斋张美文尹思
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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