Solar cooperative two-step biomass spiral baking pretreatment method and apparatus thereof
A pretreatment device, biomass technology, applied in the directions of biofuel, waste fuel, energy input, etc., can solve the problems of prolonging residence time, reducing production efficiency, increasing cost, etc., to improve energy utilization, improve production efficiency, The effect of reducing dwell time
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[0046] Example 1
[0047] A solar energy cooperative two-step biomass spiral roasting pretreatment method includes the following steps:
[0048] S1. Use solar energy as an auxiliary heat source to synergize with the combustion of baking volatiles for biomass baking pretreatment. Specifically, the corn stalks (with a size of 30 mm or less) after a moisture content of 15% and a size treatment (cut off) are dried and dehydrated (The temperature of drying and dewatering is 120℃, and the residual moisture of corn stover is 2.5-3%), and the feed rate is 5kg / h;
[0049] S2. Use diesel combustion to preheat the biomass spiral roasting reactor to 260°C, and send the dried and dehydrated corn stalks into the biomass spiral roasting reactor for roasting reaction. After roasting volatiles can be ignited, stop the diesel burning After cooling, the solid phase product obtained after baking can be stored or used for the next level application. The baking volatiles are mixed with air for combustion...
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[0051] Example 2
[0052] A solar energy cooperative two-step biomass spiral roasting pretreatment method includes the following steps:
[0053] S1. Use solar energy as an auxiliary heat source to synergize with the combustion of roasting volatiles for biomass roasting pretreatment. Specifically, the rice husk (with a size of 30 mm or less) after a moisture content of 14% and size treatment (cut off) is dried and dehydrated (The temperature of drying and dehydration is 125℃, and the residual moisture of rice husk is 4~5%), and the feed rate is 4.8kg / h;
[0054] S2. Use diesel combustion to preheat the biomass spiral roasting reactor to 300℃, and send the dried and dehydrated rice husks into the biomass spiral roasting reactor for roasting reaction. After roasting volatiles can be ignited, stop diesel burning After cooling, the solid phase product obtained after baking can be stored or used for the next level of application. The baking volatiles are mixed with air for combustion, and...
Example Embodiment
[0056] Example 3
[0057] A solar energy cooperative two-step biomass spiral roasting pretreatment method includes the following steps:
[0058] S1. Use solar energy as an auxiliary heat source and synergize with the burning of baking volatiles for biomass baking pretreatment. Specifically, the oil-tea camellia shell with a moisture content of 15% is dried and dehydrated (the temperature of drying and dehydration is 130°C, and the residual moisture of the camellia shell 1.5~2.5%), the feed rate is 4kg / h;
[0059] S2. Use diesel combustion to preheat the biomass spiral roasting reactor to 330°C, and send the dried and dehydrated camellia husks into the biomass spiral roasting reactor for roasting reaction. After roasting volatiles can ignite, stop diesel burning After cooling, the solid phase product obtained after baking can be stored or used for the next level application. The baking volatiles are mixed with air for combustion, and the high-temperature hot flue gas produced by the ...
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