Horizontally-arranged cylinder rolling type aerobic fermentation apparatus with heat exchange function

Abstract

The invention relates to a horizontally-arranged cylinder rolling type aerobic fermentation apparatus with a heat exchange function. A horizontally-arranged cylinder fermentation tank is supported by supporting roller sets. Bearings are arranged on left and right ends of the cylinder fermentation tank. The cylinder fermentation tank is connected to left and right side sealing caps through bearing outer rings and bearing inner rings. The fermentation tank, the bearings and the sealing caps form a sealed space. A spiral feeder and an exhaust pipe, and a spiral discharging machine and a gas inlet pipe are respectively arranged on the left and right side sealing caps. A coaxial cylindrical heat exchange water sleeve is arranged outside the cylinder fermentation tank. A motor, a coupler, a speed reducer, and a pinion are sequentially connected. The pinion is engaged with an outer gear ring on the cylinder fermentation tank. The apparatus provided by the invention is advantaged in small land occupation, high fermentation efficiency, and no secondary pollution. The apparatus is not affected by environment factors and low-temperature conditions. A finished product is advantaged in low water content, and can be commercialized as high-quality organic fertilizer. Therefore, excrement reduction, harmless modification and recycling and utilization can be realized. No odor or heat is discharged outside, and an environment protection effect is good.

Description

technical field [0001] The invention belongs to the technical field of biodegradation, and specifically relates to a horizontal cylinder rolling aerobic fermentation equipment with heat exchange and fermentation temperature control, which is widely used in the reduction, harmlessness, Technical equipment for resource processing and preparation into organic fertilizer. Background technique [0002] The main by-products of large-scale livestock and poultry farms, sewage treatment plants, and urban waste treatment plants: feces, sludge, and organic waste are large in volume and highly concentrated. If they are not treated in a timely and effective manner, they will easily cause pollution and become an environmental disaster. [0003] For the treatment of the above fecal waste, many solutions have been proposed, such as aerobic dynamic fermentation (composting), biogas fermentation, high-temperature rapid drying, microwave drying, landfill and incineration power generation metho...

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Problems solved by technology

[0004] Since garbage and feces usually have extremely high water content (50% to 90%), direct landfilling can easily pollute the groundwater system, and drying requires a lot of energy. Incineration power generation produces toxic substances such as dioxins, carbon monoxide, and sulfur dioxide due to combustion. , it is difficult to effectively control the discharge of toxic substances, and because the waste has a high moisture content and a low combustion calorific value, the cost of power generation is high, and the gain outweighs the gain

[0005] Biogas technology (anaerobic fermentation) is considered to be a biotechnology that can treat manure and produce clean energy biogas, but in fact, in order to meet the requirements of anaerobic fermentation (the concentration of fermentation raw materials is generally required to be around 8%), it is necessary to add a large amount of However, precious water resources can meet the needs of its concentration, so the reactor for its fermentation is bulky and the volumetric gas production rate is low. Moreover, even in winter in southern China, the reactor will generally stop fermentation, and a large amount of manure is required to pile up. site

Although the finished biogas slurry is also an excellent agricultural organic fertilizer, it is difficult to realize the commercial sale of the biogas slurry due to the extremely difficult solid-liquid separation of the biogas slurry, and the soluble COD of the biogas slurry is very high, and the emission is extremely high. Easy to cause secondary pollution to the environment

[0006] Aerobic fermentation (composting) can degrade organic matter through microorganisms to reduce the amount of fecal waste. However, the composting technology widely used at present mainly has the following problems: ①It occupies a large area; ②Long fermentation time (generally, the fermentation time needs 15 days to about a month); ③The fermentation speed decreases in low temperature weather

At present, the efficiency or effect of aerobic composting is mostly improved by ventilation, forced oxygen delivery, turning or stirring, etc., but the heat and odor generated by fermentation are allowed to be discharged into the atmosphere, causing environmental pollution

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