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Production system for preparing derived fuel by coupling household garbage and biological straw

A technology for domestic waste and bio-straw, which is applied in the field of production systems where domestic waste and bio-straw are coupled to produce derived fuel, can solve the problems of increasing RDF production cost, needing to consume external heat sources, and long biological drying cycle, and shortening the biological Effect of drying time, lower production cost, easy industrial application

Pending Publication Date: 2022-04-29
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method and device for preparing domestic waste-derived fuel (CN2012104923717) uses facultative biological fermentation technology for drying, which has the disadvantage of long biological drying cycle, resulting in problems such as untimely treatment and large area occupation; Binder prepared by derived fuel and its application (CN2012102624462) The binder is prepared by mixing electroslag, coal powder ash and sludge. Electroslag contains S, P and other elements, and the combustion of derived fuel will cause environmental damage. Secondary pollution; Garbage-derived fuel preparation system (CN2015205190958) uses drum drying ovens, hot air stoves, etc. to dry garbage, which requires a large number of external heat sources, which increases the production cost of RDF; a domestic garbage fuel homogenization treatment process, system and Application (CN2020107466347) Extrusion dehydration is used to remove free water in the garbage, and then the garbage material is heated at low temperature to realize the moisture evaporation and drying of the garbage material, which requires the consumption of external heat sources; a garbage-derived fuel production process (CN2020115974219) uses a spiral drying oven The method of stirring and heating is used for drying, and the choice of heat source also increases the production cost of RDF

Method used

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  • Production system for preparing derived fuel by coupling household garbage and biological straw
  • Production system for preparing derived fuel by coupling household garbage and biological straw
  • Production system for preparing derived fuel by coupling household garbage and biological straw

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A production system for producing derived fuel by coupling domestic waste and biological straw, including: waste pretreatment system: waste receiving silo, driving grab, crusher device, trommel screen, rotating silo device, mixer, biological dry Chemical workshop;

[0035] The driving grab puts the garbage receiving silo into the crusher device for crushing, and the crusher device is connected with the rotating silo device through the conveyor belt, and the driving grab puts the materials in the rotating silo device into the mixer in proportion for further processing. Mixing, the mixed material is sent to the garbage auxiliary system for filtration and drying, and finally the dried material is sent to the RDF forming system for classification and compression;

[0036] The RDF molding system includes several magnetic separators, manual sorting platforms, and RDF molding machines. The outlet of the manual sorting platform is connected to the entrance of the RDF molding ma...

Embodiment 2

[0041] A production system for coupling domestic waste and biological straw to produce derived fuels, including: a waste pretreatment system: including a domestic waste receiving silo, a straw-like biomass receiving silo, a driving grab 6, a first crusher 4, a second Second crusher, third crusher 10, first magnetic separator 5, winnowing 7, first transfer silo, second transfer silo, mixer 9, biological drying workshop 12;

[0042] Garbage auxiliary system: ultrasonic device 11, blower 14, first odor fan 15, second odor fan 16, first leachate sump 3, second leachate sump 13;

[0043] RDF molding system: including a second magnetic separator 17, a manual sorting platform 18, and an RDF molding machine 19; the outlet of the manual sorting platform is connected to the inlet of the RDF molding machine, and the mixed material is pressed into shape by the RDF molding machine;

[0044]Post-treatment system: including a leachate treatment unit (device) 20 and an odor treatment unit 21....

Embodiment 3

[0053] Household garbage and straw-like biomass are transported to their respective garbage receiving silos 2 by different garbage transport vehicles 1, and the driving grab 6 is responsible for sending the garbage in the garbage receiving silo 2 to the first and second crushers 4 for pre-processing. Crushing, the output size is less than 30mm, the crushed garbage passes through the first magnetic separator 5 and drum screen 7 to screen out non-combustible materials such as metal and brick soil, and the screened domestic garbage and straw biomass are transported to different In the transfer silo 8. The driving grab 6 puts the garbage in the transfer silo 8 into the mixer 9 at a ratio of 60% of the straw biomass mass percentage for mixing, and the mixed material is transported into the third crusher 10 for fine crushing, and the output size is less than 5mm. The outlet of the third crusher 10 is connected to the biological drying workshop 12, and the finely crushed garbage is ...

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Abstract

The invention discloses a production system for preparing derived fuel through coupling of household garbage and biological straw. The production system comprises a garbage pretreatment system, a biological drying system and a waste recycling system, wherein the garbage pretreatment system comprises a garbage receiving silo, a travelling crane grab bucket, a crusher device, a rotary silo device, a mixer and a biological drying workshop; domestic garbage and straw biomass are subjected to coarse separation such as coarse crushing, magnetic separation and a rotary screen, then enter a transfer silo and are mixed in a mixer according to a certain proportion; after being finely crushed, the mixture is fed into a biological drying workshop to be subjected to ultrasonic-assisted drying dehydration, and then enters a secondary sorting section of a magnetic separation and manual sorting platform after being dried, so that recyclable and toxic and harmful components are screened out, and finally, the garbage derived fuel is prepared by extrusion forming of a forming machine. And harmless, reduction and resourceful treatment of the waste is realized.

Description

technical field [0001] The invention relates to the technical field of garbage treatment, in particular to a production system for coupling domestic garbage and biological straw to produce derived fuel. Background technique [0002] Refuse-derived fuel (RDF) technology is a typical development from simple incineration of primary waste to high-tech production of clean energy, but my country is still in its infancy. The power generation efficiency of RDF reaches 35%, which is 1.3 times higher than the incineration of primary waste, and greatly reduces the degree of secondary pollution. It has absolute competitive advantages in energy, resource recovery and ecological benefits. The method and device for preparing domestic waste-derived fuel (CN2012104923717) uses facultative biological fermentation technology for drying, which has the disadvantage of long biological drying cycle, resulting in problems such as untimely treatment and large area occupation; Binder prepared by der...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44C10L5/46
CPCC10L5/445C10L5/46Y02E50/30
Inventor 马晓茜刘泓宇唐玉婷
Owner SOUTH CHINA UNIV OF TECH