CN109400221A - A kind of organic waste anaerobic fermentation biogas residue fertilizer manufacture - Google Patents

A kind of organic waste anaerobic fermentation biogas residue fertilizer manufacture Download PDF

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Publication number
CN109400221A
CN109400221A CN201811458305.1A CN201811458305A CN109400221A CN 109400221 A CN109400221 A CN 109400221A CN 201811458305 A CN201811458305 A CN 201811458305A CN 109400221 A CN109400221 A CN 109400221A
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China
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production line
fertilizer
slurry
sent
biogas
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CN201811458305.1A
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Chinese (zh)
Inventor
张辰
熊建英
卢成洪
谢奎
邹锦林
王华金
程雪婷
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Publication of CN109400221A publication Critical patent/CN109400221A/en
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F9/00—Fertilisers from household or town refuse
    • C05F9/04—Biological compost
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/90—Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/60—Heating or cooling during the treatment
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/90—Apparatus therefor
    • C05F17/964—Constructional parts, e.g. floors, covers or doors
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/90—Apparatus therefor
    • C05F17/964—Constructional parts, e.g. floors, covers or doors
    • C05F17/971—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material
    • C05F17/979—Constructional parts, e.g. floors, covers or doors for feeding or discharging materials to be treated; for feeding or discharging other material the other material being gaseous
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

Abstract

The invention discloses a kind of organic waste anaerobic fermentation biogas residue fertilizer manufacture, the dewatered biogas residue of organic waste anaerobic fermentation carries out mixing conditioning with auxiliary material；Fermented system carries out aerobic fermentation, into ageing system；Material is sent into Organic fertilizer production line feeding system by belt conveyor after ageing, crushes via blade type pulverizer and raw material feed screen(ing) machine, can produce thick fertilizer after screening；Material after ageing is screened, and screenings enters drum granulating production line after screening, the first granular fertilizer is made by drum granulating production line, oversize and screenings are back to the crusher before rotary drum granulator；Biogas slurry and whitewashing ingredient are sent to whitewashing slot and are mixed thoroughly, are sent into slurry-spraying pelletizing production line jointly with object in the remaining sieve of drum granulating production line, the second granular fertilizer is made.The present invention has stronger material composition change adaptability, the ability of regulation and control of stronger biogas slurry and biogas residue processing and recycling operational management, and product has preferable market flexibility.

Description

A kind of organic waste anaerobic fermentation biogas residue fertilizer manufacture
Technical field
The present invention relates to organic waste anaerobic fermentation field, in particular to a kind of organic waste anaerobic fermentation biogas residue system Fertile method.
Background technique
In recent years, with the development of the quickening of urbanization process and modern agriculture, agricultural, industry, resident living etc. The produced discrepancy problems demand for obtaining a large amount of organic wastes solves.
Organic waste producing methane through anaerobic fermentation is that organic waste is innoxious, one of important method of resource utilization, But still it generates a large amount of fermentation residues and is handled.Fermentation residues form biogas slurry and biogas residue after being separated by solid-liquid separation. Nitrogen, phosphorus, potassium, organic matter, humic acid and amino acid rich in rich in biogas residue, various hydrolases, growth Element has and increases soil nutrient, plant growth, control disease is promoted to occur, improve the effects of crop quality, can improve soil Physicochemical property enhances the retain water and nutrients ability of soil, is a kind of slow and has effects that improve the fertilizer of soil.Utilize natural pond The technology that slag makes organic fertilizer is more mature, but the product that enterprise produces in the market is generally more single.Also containing rich in biogas slurry Microbiological active materials and the humic acid such as rich amino acid, protein, hydrolase, auxin, can make Liquid organic fertilizer conduct Base manure, top dressing and foliar fertilizer use, but since its storage and transportation problem limit the wide popularization and application of Liquid organic fertilizer. In addition, the problems such as long-term a large amount of application bring quality of agricultural product declines of chemical fertilizer, soil hardening, also more causes people to pay close attention to, The organic fertilizer product that biogas residue and biogas liquid production has stronger market flexibility how is comprehensively utilized, is the heat in organic fertilizer production field Point.
Summary of the invention
In view of the deficiencies of the prior art, another object of the present invention is to provide a kind of organic waste anaerobic fermentation biogas residues Fertilizer manufacture realizes that biogas residue is innoxious and higher value application to promote the comprehensive utilization value of biogas residue.
To achieve the goals above, technical scheme is as follows: a kind of organic waste anaerobic fermentation biogas residue system fertilizer Method, it is characterised in that the described method includes:
(1) the dewatered biogas residue of organic waste anaerobic fermentation, which is sent by belt conveyor to hopper, carries out mixing conditioning with auxiliary material, Material water ratio is 55 ~ 65% after conditioning；
(2) material after mixing conditioning after crushing, is delivered to fermentation system by belt conveyor and carries out aerobic fermentation, fermented Material afterwards enters ageing system；
(3) material enters ageing system and is aged to stabilize to biogas residue, the material water ratio after ageing about 30 ~ 40%, Material is sent into Organic fertilizer production line feeding system by belt conveyor after ageing, is fed screen(ing) machine via blade type pulverizer and raw material It crushes, thick fertilizer can be produced after screening；
(4) material after being aged is screened, and screenings enters drum granulating production line after screening, successively passes through drum granulating, one Secondary drying, primary cooling, two-stage sieve process, and object is for producing the first granular fertilizer in a part sieve, and object is sent in remainder sub-sieve Toward slurry-spraying pelletizing production line；Oversize and screenings are back to the crusher before rotary drum granulator；
(5) biogas slurry and whitewashing ingredient are sent to whitewashing slot and are mixed thoroughly, are sent into jointly with object in the remaining sieve of drum granulating production line Slurry-spraying pelletizing production line, material successively pass through slurry-spraying pelletizing, secondary drying, secondary cooling, two-stage fine screen process, and object can give birth in sieve The second granular fertilizer is produced, oversize and screenings return to slurry-spraying pelletizing production line origin or beginning or be back to drum granulating production line origin or beginning weight It is new to utilize；
(6) it is sent into automatic packing machine pack sealing after object cooling during (4) (5) step is sieved and is transported to warehouse for finished product.
This method further include:
The crushing and screening tail gas that step (4) generates introduces the first hot-blast stove, while being passed through biogas to the first hot-blast stove, passes through first Hot-blast stove provides hot wind to the first dryer；Biogas, the first cooler dedusting tail that step (4) generates are passed through to the second hot-blast stove Gas mixed with the outlet of the second hot-blast stove after be step (5) slurry-spraying pelletizing machine heat supply.
System of the present invention can produce the fertilizer of three kinds of qualities:
(1) thick fertilizer: dark brown or dark gray, quality are loose, and moisture content is 30% ~ 40% or so, in conveying crumb structure, product at Mainly biogas residue fermentation is divided to decompose the organic matter and humus generated；
(2) first granular fertilizers: moisture content is 10 ~ 20%, granular fertilizer, and partial size is 1 ~ 4mm, and particle is round and smooth, soluble and inhaled by crop It receives.
(3) second granular fertilizers: moisture content is 7 ~ 15%, granular fertilizer, and partial size is 2 ~ 5mm, is granulated uniform, bright in color, quality Stablize, nutrient is sufficient, soluble and be absorbed by crops, product nutrient can adjust formula according to demand, and flexibility is good.
Compared with prior art, beneficial effects of the present invention are as follows:
1. organic waste anaerobic fermentation biogas residue production organic fertilizer provided by the present invention can guarantee that biogas slurry and biogas residue is entirely being made Stabilisation, innoxious is fully achieved in fertile process flow, while may cause from the secondary pollution for avoiding biogas slurry and biogas residue at all Environment influence the problems such as.
2. it is different that the present invention from traditional biogas residue prepares organic fertilizer technique, using aerobic fermentation, ageing, drum granulating and The concatenated technique of slurry-spraying pelletizing technique produces the granular organic fertilizer of three kinds of different qualities, can satisfy the needs in market, have compared with Strong market flexibility, improves biogas residue and biogas liquid comprehensive utilization value.
3. the present invention, as sizing mixing, provides a kind of approach using biogas slurry for anaerobism biogas slurry outlet.
Detailed description of the invention
Fig. 1 is that the organic waste anaerobic fermentation biogas residue of the embodiment of the present invention produces the system schematic of organic fertilizer.
Fig. 2 is that the organic waste anaerobic fermentation biogas residue of the embodiment of the present invention produces the processing method process flow of organic fertilizer Schematic diagram.
It include: major ingredient metering batcher 1, mixing crusher 2, turner 3, blade type pulverizer 4, raw material feeding screen in figure Machine 5, returning charge conveyer 6, crusher 7, rotary drum granulator 8, the first dryer 9, hot-blast stove 10, the first cooler 11, two-stage sieve Object channel 13, whitewashing slot 14, slurry-spraying pelletizing machine 15, slurry-spraying pelletizing air-heater 16, the second cooler 17, two in separating device 12, sieve Object channel 19, coating machine 20, finished product bin 21, fermentation tank 22, screw feeder conveyer 23 in grade fine screen device 18, fine screen sieve.
Specific embodiment
Below with specific embodiment, the present invention will be further described.
Embodiment
A kind of system and method for organic waste anaerobic fermentation biogas residue production organic fertilizer, the system comprises mixing systems System, fermentation system, ageing system, fertilizer producing system.
Mixing system includes major ingredient metering batcher 1, and is set to the mixing crusher of major ingredient metering 1 output end of batcher 2, major ingredient metering batcher 1 carries out biogas residue with auxiliary material to mix conditioning, and mixing crusher 2 is crushed.
Fermentation system includes fermentation tank 22, and turner 3 is arranged in fermentation tank 22, using bottom forced ventilation+turner 3 into It acts charitably aerobe fermentation.
Blade type pulverizer 4 and raw material feed screen(ing) machine 5 are set in ageing system, material is by 4 He of blade type pulverizer after ageing Raw material feed screen(ing) machine 5 crushes, can dispatch from the factory thick fertilizer after screening, and screenings is back to fermentation by returning charge conveyer 6 as returning charge Storehouse；Or enter fertilizer producing system.
Fertilizer producing system by concatenated drum granulating production line and the second product line group at, wherein
Drum granulating production line includes sequentially connected rotary drum granulator 8, the first dryer 9, the first cooler 11, two-stage screening Crusher is arranged in the input terminal of device 12, rotary drum granulator 8, and screenings, solid-state auxiliary material are successively by turning after being aged systematic sieving Drum granulation, first drying, primary cooling, two-stage sieve process, and object can produce the first granular fertilizer, remainder sub-sieve in a part sieve Middle object enters slurry-spraying pelletizing production line；Oversize and screenings are back to the crusher 7 before rotary drum granulator, crushing and screening tail gas It is passed through the first hot-blast stove 10 with biogas, hot wind is generated and is sent into the first dryer 9；
Slurry-spraying pelletizing production line includes sequentially connected whitewashing slot 14, slurry-spraying pelletizing machine 15, the second hot-blast stove 16, the second cooler 17, two-stage fine screen device 18, biogas slurry and whitewashing ingredient are sent to whitewashing slot and are mixed thoroughly, common with object in the first production line residue sieve It is sent into slurry-spraying pelletizing machine 15, material successively passes through slurry-spraying pelletizing, secondary drying, secondary cooling, two-stage fine screen process, and object can in sieve The second granular fertilizer is produced, oversize and screenings return to slurry-spraying pelletizing production line origin or beginning or be back to drum granulating production line origin or beginning It re-uses.First cooler, 11 dedusting tail gas is 15 heat supply of slurry-spraying pelletizing machine after mixing with the outlet of the second hot-blast stove 16.
The method the following steps are included:
(1) the dewatered biogas residue of organic waste anaerobic fermentation is sent through belt feeder to mixing system, measures batcher 1 by major ingredient It carries out mixing conditioning with auxiliary material, and is crushed via mixing crusher 2.The optional stalk of auxiliary material, compost sieve feed back, after conditioning Material water ratio is 55 ~ 65%.
(2) mixing conditioning, broken material through belt conveyor are delivered to fermentation system, using bottom forced ventilation+ Turner 3 carry out aerobic fermentation, residence time of material about 7 ~ 10d, 22 span 10m ~ 20m of fermentation tank, height of materials be 1.6m ~ 1.8m.Material after fermented enters ageing system.
(3) material enters ageing system and is aged to stabilize to biogas residue, digestion time about 5d or so, after ageing Material water ratio about 30 ~ 40%.Ageing is to be further divided larger molecular organics remaining in organic matter, stablize, drying, To meet the subsequent requirement for making fertile technique.Material is sent into Organic fertilizer production line feeding system by belt conveyor after ageing, via Can dispatch from the factory thick fertilizer after blade type pulverizer 4 and the crushing of raw material feed screen(ing) machine 5, screening.Screenings is defeated by returning charge as returning charge Machine 6 is sent to be back to fermentation cabin；Screenings can also enter fertilizer producing system.
(4) fertilizer producing system by two concatenated product line groups at.1# production line (drum granulating production line) is made equipped with rotary drum Grain machine 8, the first hot-blast stove 10, the first dryer 9, the first cooler 11, two-stage screening plant 12, belt conveyor, bucket elevator Etc. equipment.1# production line supplied materials be ageing systematic sieving after screenings, solid-state auxiliary material (such as urea), successively by drum granulating, First drying, primary cooling, two-stage sieve process, and two-stage screening plant sets twice sieve, sieve diameter be respectively 1.5mm, 4.5mm.Object can produce granular fertilizer 1# in a part sieve, and object enters 2# production line (slurry-spraying pelletizing production line) in residue sieve；On sieve Object and screenings are back to the crusher 7 before rotary drum granulator.
(5) 2# production line (slurry-spraying pelletizing production line) is equipped with whitewashing slot 14, slurry-spraying pelletizing machine 15, slurry-spraying pelletizing air-heater 16, the equipment such as the second cooler 17, two-stage fine screen device 18, belt conveyor, bucket elevator.Biogas slurry and whitewashing ingredient are by microcomputer control System is mixed nitrogen, phosphorus, potassium and trace elements thoroughly by whitewashing slot after process recipe, is sent to, in 1# production line remainder sub-sieve Object is sent into 2# production line jointly.Material successively passes through slurry-spraying pelletizing, secondary drying, secondary cooling, two-stage fine screen process, two-stage essence Screen device sets twice sieve, and sieve pore is directly respectively 2.5mm, 5.5mm.Object can produce granular fertilizer 2# in sieve, under oversize and sieve Object returns to slurry-spraying pelletizing production line origin or beginning or is back to the re-using of drum granulating production line origin or beginning.
(6) the crushing and screening tail gas that step (4) generates introduces the first hot-blast stove, while being passed through biogas to the first hot-blast stove, Hot wind is provided to the first dryer by the first hot-blast stove；Be passed through biogas to the second hot-blast stove (B), step (4) generate first Cooler dedusting tail gas mixed with the outlet of the second hot-blast stove (B) after be step (5) slurry-spraying pelletizing machine heat supply.Through (4) (5) step Suddenly automatic packing machine pack sealing is sent into being sieved after object cooling and is transported to warehouse for finished product.Capital equipment is coating machine 20, finished product material Storehouse 21.
The product characteristic of three kinds of products produced is respectively as follows:
(1) thick fertilizer: dark brown or dark gray, quality are loose, and moisture content is 30% ~ 40% or so, in conveying crumb structure, product at Mainly biogas residue fermentation is divided to decompose the organic matter and humus generated；
(2) granular fertilizer 1#: moisture content is 10 ~ 20%, granular fertilizer, and partial size is 1 ~ 4mm, and particle is round and smooth, soluble and inhaled by crop It receives.
(3) granular fertilizer 2#: moisture content is 7 ~ 15%, granular fertilizer, and partial size is 2 ~ 5mm, and it is steady to be granulated uniform, bright in color, quality It is fixed, nutrient is sufficient, soluble and be absorbed by crops, product nutrient can adjust formula according to demand, and flexibility is good.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification, It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only It is limited by claims and its full scope and equivalent.

Claims (2)

1. a kind of organic waste anaerobic fermentation biogas residue fertilizer manufacture, it is characterised in that the described method comprises the following steps:
(1) the dewatered biogas residue of organic waste anaerobic fermentation, which is sent by belt conveyor to hopper, carries out mixing conditioning with auxiliary material, Material water ratio is 55 ~ 65% after conditioning；
(2) material after mixing conditioning after crushing, is delivered to fermentation system by belt conveyor and carries out aerobic fermentation, fermented Material afterwards enters ageing system；
(3) material enters ageing system and is aged to stabilize to biogas residue, the material water ratio after ageing about 30 ~ 40%, Material is sent into Organic fertilizer production line feeding system by belt conveyor after ageing, is fed screen(ing) machine via blade type pulverizer and raw material It crushes, thick fertilizer can be produced after screening；
(4) material after being aged is screened, and screenings enters drum granulating production line after screening, successively passes through drum granulating, one Secondary drying, primary cooling, two-stage sieve process, and object is for producing the first granular fertilizer in a part sieve, and object is sent to spray in residue sieve Starch pelletizing production line；Oversize and screenings are back to the crusher before rotary drum granulator；
(5) biogas slurry and whitewashing ingredient are sent to whitewashing slot and are mixed thoroughly, are sent into jointly with object in the remaining sieve of drum granulating production line Slurry-spraying pelletizing production line, material successively pass through slurry-spraying pelletizing, secondary drying, secondary cooling, two-stage fine screen process, and object can give birth in sieve The second granular fertilizer is produced, oversize and screenings return to slurry-spraying pelletizing production line origin or beginning or be back to drum granulating production line origin or beginning weight It is new to utilize；
(6) it is sent into automatic packing machine pack sealing after object cooling during (4) (5) step is sieved and is transported to warehouse for finished product.
2. a kind of organic waste anaerobic fermentation biogas residue fertilizer manufacture as described in claim 1, it is characterised in that step (4) produces Raw crushing and screening tail gas introduces the first hot-blast stove, while being passed through biogas to the first hot-blast stove, gives first by the first hot-blast stove Dryer provides hot wind；Biogas, the first cooler dedusting tail gas and the second hot wind that step (4) generates are passed through to the second hot-blast stove It is the slurry-spraying pelletizing machine heat supply of step (5) after the outlet mixing of furnace.
CN201811458305.1A 2018-09-26 2018-11-30 A kind of organic waste anaerobic fermentation biogas residue fertilizer manufacture Pending CN109400221A (en)

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CN201811458312.1A Pending CN109503231A (en) 2018-09-26 2018-11-30 A kind of organic waste anaerobic fermentation biogas residue fertilizer producing system
CN201822001865.6U Active CN209522781U (en) 2018-09-26 2018-11-30 A kind of organic waste anaerobic fermentation biogas residue fertilizer producing system
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CN201822001865.6U Active CN209522781U (en) 2018-09-26 2018-11-30 A kind of organic waste anaerobic fermentation biogas residue fertilizer producing system

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CN106278625A (en) * 2016-08-16 2017-01-04 中节能绿碳（开鲁）环保有限公司 A kind of dry cayenne pepper Special biogas residue fertilizer and preparation method thereof
CN108002954A (en) * 2017-12-12 2018-05-08 农业部规划设计研究院 A kind of agricultural wastes anaerobic-aerobic balances fermentation process

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CN110508593A (en) * 2019-08-19 2019-11-29 深圳市新舟生物科技有限公司 A kind of quick processing equipment of phyteral organic waste and its technique
CN110903110A (en) * 2019-11-25 2020-03-24 浙江万泰环境工程有限公司 Quick good oxygen system of becoming fertile of natural pond sediment
CN112430159A (en) * 2020-10-29 2021-03-02 中国市政工程华北设计研究总院有限公司 System for preparing granulated fertilizer by anaerobic digestion of biogas residues by kitchen waste dry method and operation process

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