Liquid organic fertilizer production device

Abstract

A liquid organic fertilizer production device comprises a hydrolyzing tank, a pressure releasing tank, an extruder, a liquid collecting tower and a filtering concentrating tank, wherein the pressure releasing tank is connected to an outlet of the hydrolyzing tank, and high-pressure solid-liquid mixture in the hydrolyzing tank is discharged into the pressure releasing tank to obtain normal-pressuresolid-liquid mixture; the extruder is connected to the pressure releasing tank and used for extruding and separating the normal-pressure solid-liquid mixture in the pressure releasing tank into residual liquid and solid slag; the liquid collecting tower is connected to the pressure releasing tank and the extruder and is used for receiving liquid products of the pressure releasing tank and the residual liquid extruded by the extruder and conveying the collected liquid to the connected filtering concentrating tank for filtering and concentrating; the filtered and concentrated liquid enters a stirring tempering tank; nutritional elements, trace elements and strains are added to the filtered and concentrated liquid and tempered to obtain the liquid fertilizer product; the filtered and separated weak liquid is returned into the hydrolyzing tank. The device further comprises a hopper which is arranged at the front end of the extruder. According to the device, organic and beneficial components are transferred into liquid, and moreover, disinfecting, insect removing and antibiotics degrading can be effectively performed through high-temperature and high-pressure hydrolyzing reaction.

Description

technical field [0001] The invention relates to a liquid organic fertilizer production device, in particular to a device for preparing liquid organic fertilizer after hydrolysis of organic waste such as livestock and poultry manure, straw, agricultural product processing residues, forestry waste, etc., which belongs to environmental protection technology and chemical technology field. Background technique [0002] On the one hand, with the development of the farming industry in rural areas, the pollution of water, air and soil caused by farming manure has also attracted attention. Without effective treatment, toxic substances such as germs, hormones, and antibiotics will enter the soil through the agricultural use of livestock and poultry manure. , water bodies, while posing a deep threat to the environment, it will also enter the food chain and constitute a food safety problem. The straw incineration is one of the important causes of air pollution. [0003] On the other h...

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Problems solved by technology

[0003] On the other hand, the extensive use of chemical fertilizers in rural areas has led to soil compaction and reduced fertility. While chemical fertilizer residues endanger food safety, they also aggravate soil and water pollution and waste a lot of resources.

[0004] As the public pays more and more attention to the environment, organic waste such as livestock and poultry manure, straw, and agricultural product processing residues in rural areas cannot be discarded or incinerated casually, and the cost of collecting and incinerating them is relatively high

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