Method for preparing charcoal activated carbon flammable gas biological oil by utilizing crop straws

A crop straw and production method technology, applied in the field of processing and production technology, can solve problems affecting aircraft take-off and landing, safety, environmental pollution, hazards, etc., and achieve the effect of increasing economic and social benefits and reducing investment in fixed assets

Inactive Publication Date: 2011-08-24
卞奎友
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  • Claims
  • Application Information

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Problems solved by technology

Burning straw not only pollutes the environment and causes harm, but also the

Method used

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  • Method for preparing charcoal activated carbon flammable gas biological oil by utilizing crop straws
  • Method for preparing charcoal activated carbon flammable gas biological oil by utilizing crop straws

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Embodiment Construction

[0018] One, preparation method of the present invention, it comprises the following steps:

[0019] 1. Raw material crushing:

[0020] The collected crop stalks are pulverized into straw powder with a particle size of 8-30 mesh with a pulverizer, and the moisture content of the straw is controlled at 10-15%.

[0021] 2. Mixed pressing:

[0022] Add wood tar to the straw powder as a binder, stir and mix evenly, press the screw extruder into straw sticks, and use the straw pellets formed after the straw sticks are broken as carbonization raw materials. The amount of straw powder and wood tar is based on the screw extrusion The hole diameter of the steel flower plate at the outlet of the press is mixed according to the weight ratio as follows:

[0023] ① The hole diameter of the steel flower plate at the exit of the screw extruder is 2-2.2mm, and the weight ratio of straw powder and wood tar is 80-85%: 15-20%;

[0024] ② The hole diameter of the steel flower plate at the exit ...

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Abstract

The invention discloses a method for preparing charcoal activated carbon flammable gas biological oil by utilizing crop straws. In the method, a co-production process technique integrated with comprehensive processing of multiple varieties is adopted. The method comprises the following steps: smashing the collected crop straws by a smash machine so as to form straw powder with the particle size of 8-30 meshes; pressing and forming the straw powder material for pyrolysis; and in the process of pyrolysis, preparing straw charcoal and activated carbon on one production line through carbonization and activation processes, and simultaneously, recovering flammable gas and extracting biological oil. By using the method, fixed investment is greatly reduced, economic and social benefits are effectively increased, the problems of stack and incineration of the straws are solved, waste straw resources are further developed and utilized, and the blank in the same industry in China is filled.

Description

technical field [0001] The invention relates to a production technology of crop stalks, specifically a processing and production process for preparing charcoal, activated carbon, combustible gas and bio-oil by using the crop stalks. Background technique [0002] my country is a large agricultural country with an annual output of 840 million tons of various straws. During the harvest season, a large amount of straws cannot be processed. Using straws to generate electricity, making straw fiberboard or straw papermaking and other technologies requires a one-time investment that is too large, surpassing the local The economic affordability of farmers. Burning straw not only pollutes the environment and causes harm, but also the smoke from burning also affects the take-off and landing of aircraft and safety. Contents of the invention [0003] Therefore people have great demand to the technological measure of effectively and rationally processing stalk, have not found so far the...

Claims

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Application Information

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IPC IPC(8): C10B53/02C01B31/10C01B31/08C10B57/00C10G1/00C01B32/336
CPCY02E50/14Y02E50/32Y02E50/10Y02E50/30
Inventor 卞奎友
Owner 卞奎友
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