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Microwave-assisted vacuum horizontal-type biochar carbonizing device

A microwave-assisted biochar technology, which is applied in biofuels, special dry distillation, and the petroleum industry, can solve problems such as the impact of biochar production, low biochar production, and low carbonization efficiency, so as to improve carbonization efficiency and accelerate carbonization. Speed, good effect

Active Publication Date: 2015-12-09
BEIJING GENERAL RES INST OF MINING & METALLURGY
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Problems solved by technology

However, most of these devices have the following problems: (1), most of them are heated by a single external source, or only heated by thermal energy, and the carbonization efficiency is low; (2), most of the equipment is in an oxygen-deficient or low-oxygen state, especially the continuous type It is difficult for the reactor to achieve a truly anaerobic state, so its effective biochar production will be affected, that is, the effective biochar production is not high

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  • Microwave-assisted vacuum horizontal-type biochar carbonizing device

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Embodiment Construction

[0035] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0036] Such as figure 1 As shown, in this embodiment, the microwave-assisted vacuum horizontal biochar carbonization equipment includes a carbonization rotary kiln 1, and a feed port 2 and a discharge port 3 are arranged on the carbonization rotary kiln 1, and a plurality of carbonization rotary kiln 1 are uniformly arranged An electric heating device and a microwave generating device. The carbonization rotary kiln 1 is provided with a vacuum pump 4, a vacuum valve 5 and a vacuum pressure gauge 6 for making the inside of the carbonization rotary kiln 1 in a vacuum state.

[0037] Wherein, a butterfly valve is provided at the feed port 2, a seal for sealing the feed port 2 is provided between the butterfly valve and the feed port 2, and a valve for transporting biochar to the outside of the carboniza...

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Abstract

The invention discloses a microwave-assisted vacuum horizontal-type biochar carbonizing device. The device includes a carbonizing rotary kiln, on which a material inlet and a material outlet are formed. A plurality of electric-heating apparatuses and microwave generating apparatuses are uniformly disposed in the carbonizing rotary kiln. A vacuum pump, a vacuum valve and a vacuum pressure meter for vacuumizing the carbonizing rotary kiln are disposed on the carbonizing rotary kiln. In the microwave-assisted vacuum horizontal-type biochar carbonizing device, the electric-heating apparatuses and microwave generating apparatuses are uniformly disposed in the carbonizing rotary kiln, wherein the microwave generating apparatuses are used for assisting the electric-heating apparatuses to pyrolyze biomass, so that the carbonizing efficiency of biomass is greatly increased. Through the vacuum pump, a vacuum situation inside the carbonizing rotary kiln during pyrolysis on the biomass is achieved, wherein the vacuum situation can increase effective yield of the biochar.

Description

technical field [0001] The invention relates to the technical field of biomass pyrolysis equipment, in particular to a microwave-assisted vacuum horizontal biochar carbonization equipment used for treating heavy metal-contaminated soil. Background technique [0002] Biochar is obtained by pyrolysis of biomass feedstock. Biochar is almost pure carbon, and it will not disappear for hundreds to thousands of years after being buried in the ground. It is equivalent to sequestering carbon into the soil and helping to slow down global warming. It has aroused widespread interest in biochar all over the world. At present, the main raw materials used to prepare biochar include: wood waste, grass, agricultural by-products, animal manure and municipal sludge. Among them, lignocellulosic biomass is the most important raw material for preparation, and it is also the most studied raw material. [0003] The biochar technology emerging in recent years provides a new solution for soil heavy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/02C10B57/00
CPCY02E50/10
Inventor 张望王琼吴亮亮张华孙伟周连碧
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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