Agricultural waste treatment system

Abstract

The invention discloses an agricultural waste treatment system. The agricultural waste treatment system comprises a crushing device, fermentation tank and an earthworm processing bed, wherein the crushing device is used for crushing materials, the fermentation tank is used for fermenting the crushed materials, and the earthworm processing bed is used for processing fermented biogas residues. The crushing device comprises a crushing chamber and two crushing rollers, wherein the two crushing rollers are arranged in the crushing chamber and are internally and separately provided with gas channels, and air outlets communicating with the gas channels are separately arranged on the surfaces of the two crushing rollers. The earthworm treatment bed comprises a pool body, a processingchamber and aliquid collecting chamber, wherein the liquid collecting chamber is used for collecting excess biogas slurry in the processing chamber and is arranged below the processing chamber and can move up anddown relative to the processing chamber. The agricultural waste treatment system effectively shortens the processing period and improves the working efficiency by arranging the gas channels and the air outlets on the crushing rollers.

Description

technical field [0001] The invention belongs to the technical field of agricultural solid waste reuse, and in particular relates to an agricultural waste treatment system. Background technique [0002] In rural areas, a large amount of solid waste is often produced, such as agricultural straw; the traditional treatment method is usually to produce biogas by crushing and fermenting, and then use earthworms to process the biogas residue to prepare organic fertilizer. Due to the extremely fast reproduction speed of earthworms, it is easy to have an excessively high density of earthworms in this way, so the earthworms need to be separated regularly. [0003] The traditional separation methods are feed induction or strong light irradiation, which consume a lot of resources and take a long time. In order to solve the above problems, it appears that the biogas slurry collected during the treatment process is returned to the treatment chamber, so that the earthworms drill out to th...

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Problems solved by technology

However, in this method, the waste liquid is usually pumped into the treatment chamber through pipelines and power pumps, and after the earthworms are separated, the waste liquid is pumped out of the treatment chamber, which consumes a lot of energy, takes a long time, and is inefficient.

[0004] Secondly, the traditional crushing usually needs to dry the straw first, so that the straw loses moisture before crushing, the working cycle is long and the efficiency is low

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