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Municipal solid waste bag-breaking and fermentation integrated device and application

A technology of municipal solid waste and bag breaking, which is applied in transportation and packaging, chemical instruments and methods, solid waste removal, etc., can solve the problems of reducing the cost of recycling, and achieve the effect of reducing the cost of recycling and saving processing space

Active Publication Date: 2017-02-08
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide an integrated device for bag-breaking and fermentation of urban domestic waste and its application. This technology combines microbial fermentation technology with bag-breaking technology for rapid fermentation during the bag-breaking process. Degradation of perishable organic matter, followed by sorting and resource utilization steps, effectively solves the problem of odor and adhesion between substances in the process of resource utilization of waste, and at the same time greatly reduces the cost of resource utilization; reduces the impact of waste on the environment hazards and threats to personal health, improve resource efficiency

Method used

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  • Municipal solid waste bag-breaking and fermentation integrated device and application
  • Municipal solid waste bag-breaking and fermentation integrated device and application
  • Municipal solid waste bag-breaking and fermentation integrated device and application

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Experimental program
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Effect test

Embodiment 1

[0025] An integrated device for bag breaking and fermentation of urban domestic waste, which consists of a feed port 1, a bacterial liquid delivery pipe 2, an atomizing nozzle 3, a crushing bin 4, a fermentation bin 5, a rolling device 6, a discharging bin 7, and a hot air pipe 8 Composed of rolling track 9, the crushing chamber is a circular cylindrical structure, with a fixed knife 10 on the inner side of the cylinder wall, a rotatable crushing shaft 11 in the crushing chamber, and a moving knife 12 installed on the crushing shaft; the fermentation chamber is connected with the crushing chamber. connected, and the inner diameter and outer diameter are the same as those of the crushing bin, and the inner wall of the fermentation bin is also provided with the same fixed knife as the crushing bin; the discharge bin is connected with the fermentation bin, and the inner and outer diameters are the same The bin is provided with a discharge port 13; the crushing shaft in the crushin...

Embodiment 2

[0028] Embodiment 2: An application of the integrated device for bag breaking and fermentation of urban domestic waste, using continuous spraying of compound microbial bacterial liquid, uniformly distributed in the waste during the crushing process, and performing a continuous degradation process, the steps are as follows:

[0029] 1) Put municipal solid waste into the device continuously from the feed port, start the motor and rolling device;

[0030] 2) Arrange three atomizing nozzles in an equilateral triangle at the entrance of the crushing bin, calculate the amount of material entering the conveying bin per unit time according to the cross-sectional area of ​​the raw material inlet of the feeding port, and spray the composite microorganisms continuously according to 3% of the weight of the material by the atomizing nozzles Bacterial liquid, the aperture of atomizing nozzle is 0.5mm;

[0031] 3) Supply heat to the device through the hot air pipeline to keep the temperature...

Embodiment 3

[0035] Embodiment 3: An application of the integrated device for bag-breaking and fermentation of urban domestic waste, using continuous spraying of compound microbial bacterial liquid, uniformly distributed in the waste during the crushing process, and performing a continuous degradation process, the steps are as follows:

[0036] 1) Put municipal solid waste into the device continuously from the feed port, start the motor and rolling device;

[0037] 2) Arrange three atomizing nozzles in an equilateral triangle at the entrance of the crushing bin, calculate the amount of material entering the conveying bin per unit time according to the cross-sectional area of ​​the raw material inlet of the feeding port, and continuously spray the compound microorganisms into the atomizing nozzle according to 5% of the weight of the material Bacterial liquid, the aperture of atomizing nozzle is 0.5mm;

[0038] 3) Supply heat to the device through the hot air pipeline to keep the temperature...

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Abstract

The invention provides a municipal solid waste bag-breaking and fermentation integrated device and application. The current household waste recycling process in China comprises the following steps: bag breaking; sorting; fermentation; and recycling. In the above process, organic matters decay during bag breaking treatment, malodorous gas and a large amount of percolate are generated, and the problems about increased material viscosity, difficult sorting, low recycling efficiency, high cost and the like are caused. In order to solve the problems about low recycling efficiency, low cost and environmental pollution, the integrated device and an application method thereof are provided. According to the integrated device, a complex microbial bacterium solution is sprayed into municipal solid waste before bag breaking, and the organic matters are quickly degraded during uninterrupted bag breaking and fermentation, thereby guaranteeing quick transformation of the perishable organic matters during bag breaking and fermentation, and greatly reducing the impact of the malodorous gas on the environment; and meanwhile, the viscosity of residual solids can be greatly reduced during fermentation, the recycling efficiency can be improved by 35% or above, and the recycling cost can be reduced by 10% or above.

Description

technical field [0001] The invention relates to a pre-fermentation technology for sorting mixed garbage, in particular to an integrated device for bag breaking and fermentation of municipal domestic garbage and its application. Background technique [0002] At present, domestic waste has complex components and is difficult to deal with. The main treatment methods are still landfill and incineration. However, landfill occupies a large amount of land resources, which seriously restricts urban development; incineration can reduce the amount of waste or generate electricity. However, the waste contains a large amount of kitchen waste and has a high moisture content, which seriously affects the stability of incineration. There are many drawbacks in the above-mentioned existing treatment methods, and the environment is also easily harmed. At the same time, with the gradual depletion of social resources, the comprehensive treatment of domestic waste as an urban mine has received m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00B02C18/14
CPCB02C18/0092B02C18/145B09B5/00B02C2201/06B09B3/00B09B2101/02
Inventor 李维尊鞠美庭张东昇孙玉梅
Owner NANKAI UNIV
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