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Method and device for preparing fertilizer from kitchen garbage

A kitchen waste and fertilizer technology, applied in organic fertilizer, waste fuel, climate change adaptation, etc., can solve the problem of high processing cost, achieve the effect of short time, high efficiency and cost reduction

Active Publication Date: 2015-11-18
GUANGZHOU YINGHAO ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

high processing costs

Method used

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  • Method and device for preparing fertilizer from kitchen garbage
  • Method and device for preparing fertilizer from kitchen garbage
  • Method and device for preparing fertilizer from kitchen garbage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]A method of using kitchen waste to make fertilizer. The kitchen waste is unloaded from a special kitchen waste transport vehicle and loaded into a closed unloading hopper, and then transported to a two-stage crusher by a discharge screw conveyor for crushing, and then enters the extrusion process. type solid-liquid separator for solid-liquid separation to obtain solid kitchen waste and liquid, preferably, the solid kitchen waste is an organic solid, and the liquid is an organic liquid; the solid kitchen waste and the organic liquid are separated resource processing. The present invention is also equipped with an odor treatment system to treat the odor generated by the special kitchen waste transport vehicle, the closed unloading hopper, the two-stage crusher and the whole process of solid-liquid separation.

[0043] Pyrolysis and carbonization of the separated solid kitchen waste to obtain pyrolysis gas and carbon slag, preferably, the carbon slag is biochar;

[0044] T...

Embodiment 2

[0054] A pyrolytic carbonization furnace for realizing pyrolytic carbonization in the method for producing fertilizer from kitchen waste described in Embodiment 1, comprising a furnace body 1, a cyclone dedusting furnace 2 and a material conveying device 3, the pyrolysis of the furnace body The gas outlet 4 communicates with the air inlet 5 of the cyclone dust removal furnace, the discharge port 6 of the cyclone dust removal furnace is connected to the material conveying device, and the feeding port of the material conveying device is connected with the feed inlet of the furnace body.

[0055] Preferably, the lower part of the furnace body is inclined upwards with a burner installation opening 7, preferably, the burner installation opening is inclined upwards by 3-10°, more preferably, the burner installation opening is inclined upwards by 5°.

[0056] Preferably, there are multiple burner installation ports, which are respectively opened at equal angles around the circumferent...

Embodiment 3

[0070] A conveyor for transporting solid kitchen waste to an organic solid drying conveyor for pyrolysis and carbonization in the method for making fertilizer from kitchen waste described in Embodiment 1, including a conveying pipe 11, a spiral conveying blade 12 and passing through The driving mechanism 13 that drives the spiral conveying blade to rotate and push the material, and the spiral conveying blade is arranged in the conveying pipe.

[0071] Preferably, a material inlet 16 , a material outlet 17 and a steam outlet 18 are provided on the conveying pipe.

[0072] Preferably, there are multiple organic solid drying conveyors, and the material outlets of two adjacent organic solid drying conveyors are connected to the material inlet.

[0073] Preferably, it also includes a body heat medium jacket 14 surrounding the outer surface of the delivery pipe, and a sealed heat medium space 15 is formed between the delivery pipe and the body heat medium jacket, and the heat medium...

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Abstract

The invention discloses a method and device for preparing fertilizer from kitchen garbage. The method comprises crushing kitchen garbage, carrying out solid-liquid separation, carrying out pyrolysis carbonization on the separated solid kitchen garbage to obtain pyrolysis gas and carbon residue, washing the pyrolysis gas, carrying out anaerobic fermentation on the separated liquid to obtain a broth, biogas residue and biogas, carrying out aerobic fermentation on the broth, then preparing organic-inorganic composite liquid fertilizer from the obtained liquid, mixing the biogas residue and the biogas residue obtained by the pyrolysis carbonization, adding composite microbe engineering bacteria into the mixture, and carrying out solid state fermentation to obtain the organic carbon solid fertilizer. The method and device respectively carry out resourceful treatment on the solid kitchen garbage and the organic liquid, the organic liquid is treated by a biotechnology so that the organic-inorganic composite liquid fertilizer is produced, and solid kitchen garbage is subjected to pyrolysis carbonization so that energy and biochar are produced.

Description

technical field [0001] The invention relates to the field of kitchen waste treatment, in particular to a method for making fertilizer from kitchen waste and a device for realizing the method. Background technique [0002] Kitchen waste refers to food residues and processing waste generated in residents' lives and vegetable markets, fruit and vegetable wholesale markets. [0003] The amount of kitchen waste in my country is very large, and it is showing a rapid upward trend. Kitchen waste accounts for more than 50% in the domestic waste that general big city produces every day. Kitchen waste has the characteristics of high moisture content, high organic matter content, perishability, and rich nutrition. During the storage, collection, transfer and disposal of kitchen waste, because of its high water content and organic matter content, it is easy to be stored in a short period of time. How to efficiently and quickly dispose of kitchen waste has always been a common concern o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F9/02C05F9/04
CPCY02A40/20Y02E50/30Y02W30/40
Inventor 张京荣陈鹏
Owner GUANGZHOU YINGHAO ENVIRONMENTAL PROTECTION TECH CO LTD
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