Livestock and poultry liquid dung composite rapid anaerobic reaction tank
An anaerobic reaction tank, livestock and poultry manure technology, applied in anaerobic digestion treatment, animal husbandry wastewater treatment, water pollutants and other directions, can solve problems such as uneven heating, large tank capacity, etc., to achieve the effect of saving production costs
Active Publication Date: 2020-10-09
中国农业大学烟台研究院
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Problems solved by technology
At present, conventional biogas projects adopt a single-tank, full-volume heating method, which has large tank capacity and uneven heating
Method used
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[0041] The principles and features of the present invention are described below in conjunction with examples, which are only used to explain the present invention and are not intended to limit the scope of the present invention.
[0042] A compound rapid anaerobic reaction tank of livestock and poultry manure, such as figure 1 As shown, it includes an outer tank 1 and an inner tank 3, and the inner tank 3 is arranged inside the outer tank 1;
[0043] The inner diameter of the inner tank 3 is 300mm, and the inner diameter of the outer tank 1 is 2000mm;
[0044] The outer tank 1 is a fermentation tank, and its outer wall is provided with an insulating layer 2; the inner tank 3 is a sterilization tank, and its outer wall is evenly equipped with a plurality of cooling fins 4; Agitator B 6 is installed in the inner cavity of tank 1; both agitator A 5 and agitator B 6 can move up and down in the tank; the upper part of inner tank 3 is provided with discharge port A 11; the lower pa...
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The invention discloses a livestock and poultry liquid dung composite rapid anaerobic reaction tank. The tank comprises an outer tank and an inner tank; the inner tank is arranged in the outer tank; the inner tank is a sterilization tank and is connected with a raw material heating system outside the reaction tank through a feeding pipe; the inner tank is provided with a discharge port A leading to the outer tank; cooling fins are arranged on the outer wall of the inner tank; the outer tank is a fermentation tank and is provided with a discharge hole B; a biogas outlet is formed in the top ofthe outer tank. The reaction tank provided by the invention can realize the rapid harmless treatment of livestock and poultry liquid dung, reduces the harmless treatment cost of the liquid dung, and shortens the retention time of the liquid dung in the tank body by 6-14 days compared with conventional biogas engineering; and the double effects of sterilization and organic matter degradation are realized by utilizing a process of high-temperature sterilization and organic matter decomposition by residual temperature.
Description
technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a compound fast anaerobic reaction tank of livestock and poultry manure and water. Background technique [0002] Our country produces 3.8 billion tons of livestock and poultry manure every year, which becomes resources when used, and becomes pollution when discarded. For the treatment of livestock and poultry manure, solid manure is effectively treated through composting, liquid manure is harmlessly treated through anaerobic fermentation of biogas projects, and all biogas residues and biogas liquids are returned to the field. [0003] At present, for biogas projects aimed at biogas energy production, due to the instability of biogas supply, it is difficult to form a centralized supply and distribution system for biogas, which leads to high operation and maintenance costs for biogas engineering companies, and most biogas projects turn to harmless manur...
Claims
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IPC IPC(8): C02F3/28C02F103/20C02F101/30
CPCC02F3/28C02F2103/20C02F2101/30
Inventor 董仁杰杨守军曲威
Owner 中国农业大学烟台研究院