Semi-dry stirring equipment operation system and time sequence for large straw biogas project

A technology of mixing equipment and operation system, applied in the field of biogas engineering, can solve the problems of high energy consumption and single operation mode, and achieve the effects of saving energy consumption, improving fermentation efficiency, and preventing local accumulation

Pending Publication Date: 2021-10-15
深圳市德润生物质投资有限公司 +1
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Problems solved by technology

[0004] In order to solve the technical problem of high energy consumption caused by the single operation mode of the traditional mixing system, the present invention provides a semi-dry mixing equipment operating system and timing sequence for a large-scale straw biogas project

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  • Semi-dry stirring equipment operation system and time sequence for large straw biogas project
  • Semi-dry stirring equipment operation system and time sequence for large straw biogas project
  • Semi-dry stirring equipment operation system and time sequence for large straw biogas project

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] The main feature of the semi-dry anaerobic fermentation process is the high fermentation concentration in the tank, and the multi-point top-entry mechanical mixer is used to realize the mixing and stirring of the materials in the tank. The operation sequence of the mixer is very important to improve the mixing effect and fermentation efficiency in the anaerobic tank and reduce the overall energy consumption of the system. Semi-dry anaerobic fermentation tanks generally use 6 to 12 top-entry mechanical mixers (each tank).

[0039] A semi-dry mixing equipment operating system for a large-scal...

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Abstract

The invention relates to the technical field of biogas engineering, aims to solve the technical problem of high energy consumption caused by single operation mode of a traditional stirring system, and provides a semi-dry stirring equipment operation system and time sequence for a large straw biogas project. Stirrers at different positions are arranged, different stirring time sequence modes are adopted in a daytime feeding stage and a nighttime non-feeding stage, the stirrers with different numbers and positions are started, the stirring force is increased during feeding and is matched with the stirring time sequence, so that fresh materials entering a tank are rapidly and fully mixed and scattered, local accumulation of the fresh materials in the tank is prevented, scum and crusting phenomena in the tank are avoided, and the fermentation efficiency is improved. The number of the stirrers running at night accounts for 50% or below of the total number of the stirrers, so that power consumption can be effectively saved, the balance between the stirring effect and energy consumption saving is realized, and the technical problem of high energy consumption caused by single running mode of a traditional stirring system is solved.

Description

technical field [0001] The present invention relates to the technical field of biogas engineering, in particular to a semi-dry mixing equipment operation system and timing sequence of a large-scale straw biogas engineering. Background technique [0002] During the operation of the biogas project, material stirring is an important factor affecting the fermentation of the anaerobic fermentation system. The materials in the anaerobic tank are mixed through the stirring system, so that the materials in the tank and the heat transfer process are uniform and stable, and the efficiency of anaerobic fermentation is improved. Especially in biogas projects that use straw and other fibrous biomass wastes as raw materials, the mixing system plays a more important role due to the low specific gravity and strong hydrophobicity of straw materials. At the same time, the mixing system is one of the main parts of power consumption in biogas projects. The single operation mode of the tradition...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/36C12M1/107C12M1/02C12M1/00
CPCC12M21/04C12M27/02C12M41/00
Inventor 闫卫疆郭升晓付伟黎柱张海平胡凯曹军祥黄孝荣王虎峰
Owner 深圳市德润生物质投资有限公司
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