Straw biogas residue biomass coal briquette and preparation method thereof
A biomass and biogas residue technology, applied in the direction of biofuel, waste fuel, fuel, etc., can solve the problems of boiler corrosion, ash content increase, high production cost, etc., achieve the effects of reducing moisture, efficient and clean utilization, and solving difficult disposal effects
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[0039] Example 1
[0040] This embodiment provides a method for preparing straw and biogas residue biomass briquette, which includes the following steps:
[0041] (1). Crush the corn stalks to a particle size of less than 3cm, and the feed amount is 1.2kg, and put it in 8L biogas slurry soaked for 2h, and then add it to the dry fermentation chamber of the garage-type anaerobic fermentation reactor. Back spray the biogas slurry at the top, the initial spray amount is 1.25L / (kg straw 1.5h), the system temperature is 38±1℃, the hydraulic retention time is 28 days, the initial C / N is 25, and the pH is not adjusted;
[0042] (2) The weight of each biomass briquette raw material is 10g, among which the particle size of lignite is less than 20 mesh, and the addition amount is 8g, and the particle size of the fermented corn stover and biogas residue is 20-40 mesh, and the addition amount is 2g. The pressure is 8MPa, the holding time is 120s, and the molding temperature is 120°C, 140°C and 1...
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[0045] Example 2
[0046] This embodiment provides a method for preparing straw and biogas residue biomass briquette, which includes the following steps:
[0047] (1). Crush the corn stalks to a particle size of less than 3cm, with a feed volume of 2kg, and soak them in 12L of biogas slurry for 2h, and then add them to the dry fermentation chamber of the garage-type anaerobic fermentation reactor, proceed from the top Back spray, system temperature is 38±1℃, hydraulic retention time is 28 days, initial C / N is 25, pH is not adjusted;
[0048] In this example, three anaerobic fermentation reactions were carried out. Among them, the spray amount of the biogas slurry during the three anaerobic fermentation processes was 0.75L / (kg straw 1.5h), 0.9L / (kg straw 1.5h), 1L / (kg Straw 1.5h), the biogas residues obtained after three anaerobic fermentation reactions are respectively recorded as biogas residue AC, and the biogas residue AC is mixed as the raw material for preparing the straw and b...
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