Organic solid waste dry-type biogas fermentation system using continuous feeding and discharging equipment

Abstract

An organic solid waste dry-type biogas fermentation system using continuous feeding and discharging equipment is of a three-dimensional structure with a feeding bin, a discharging bin, a fermentationbin, an underground biogas slurry backflow pool and a biogas slurry sludge sedimentation pool from top to bottom; the fermentation bin is located on the ground or under the ground; feeding and discharging bin sealing windows and internal cranes are installed on the top faces of the feeding bin and the discharging bin; a fermentation bin sealing window and a transfer platform are installed on the fermentation bin; a closed-loop track and flat cars are arranged at the bottom of the fermentation bin; a biogas slurry backflow tank and a biogas slurry backflow pipe leads to the biogas slurry backflow pool below; a biogas slurry lifting vertical pipe is connected with a biogas slurry spray pipe at the top of the fermentation bin; and a sludge forced-discharge pump and a pipeline of the sedimentation pool lead to the ground. During operation, a crown block is automatically controlled to feed a material box from the feeding bin sealing window, the internal crane is placed on the flat car fromthe fermentation bin sealing window, biogas slurry is sprayed to materials, heat is supplemented to the fermentation bin, and biogas residues are fed for fertilizer making after biogas is discharged through fermentation. Continuous feeding and discharging are achieved, smashing is avoided, energy consumption is low, the construction cost is low, and gas, liquid and solid matter are hermetically recycled in the whole process.

Description

technical field [0001] The invention belongs to the field of environmental protection, and relates to a dry-type biogas fermentation system for continuously feeding and discharging organic solid waste by using biomass to generate biogas and organic fertilizer raw materials. Background technique [0002] At present, the processing methods of organic solid wastes such as straws at home and abroad are wet fermentation or sequential batch dry fermentation. Dust not only increases the cost, but also produces secondary pollution. Due to the light specific gravity of organic solid waste such as straw, it floats up to form a hard shell after entering the fermentation device, which affects the fermentation of materials and reduces the fermentation efficiency. Traditional process devices require a large amount of mechanical equipment to complete, which requires large capital investment, high energy consumption, and high failure rate of equipment, which affects the efficiency of bioga...

AI Technical Summary

Problems solved by technology

[0002] At present, the processing methods of organic solid wastes such as straws at home and abroad are wet fermentation or sequential batch dry fermentation. Dust not only increases the cost, but also produces secondary pollution

Due to the light specific gravity of organic solid waste such as straw, it floats up to form a hard shell after entering the fermentation device, which affects the fermentation of materials and reduces the fermentation efficiency

Traditional process devices require a large amount of mechanical equipment to complete, which requires large capital investment, high energy consumption, and high failure rate of equipment, which affects the efficiency of biogas production

The single sequence batch dry fermentation process has unbalanced biogas production and low efficiency, and is not suitable for large-scale treatment of organic solid waste

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