CN206052022U - A kind of device of organic solid castoff dry-type anaerobic fermentation - Google Patents

A kind of device of organic solid castoff dry-type anaerobic fermentation Download PDF

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Publication number
CN206052022U
CN206052022U CN201621062977.7U CN201621062977U CN206052022U CN 206052022 U CN206052022 U CN 206052022U CN 201621062977 U CN201621062977 U CN 201621062977U CN 206052022 U CN206052022 U CN 206052022U
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China
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fermentation
organic solid
tank body
solid castoff
fermentation tank
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CN201621062977.7U
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Inventor
胡芳芳
胡圣锋
袁鹏飞
周桃红
张立民
卜祖坤
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HUBEI JIADE TECHNOLOGY Co Ltd
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HUBEI JIADE TECHNOLOGY Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The utility model discloses a kind of device of organic solid castoff dry-type anaerobic fermentation, the method is first by high solid content house refuse, the organic solid castoff such as fowl and animal excrement and municipal sludge is placed in installation for fermenting, by the way of mechanical type stirring and seriality charging, by setting fermentation temperature and fermentation time, carry out intermittent middle temperature, high-temperature dry-type anaerobic fermentation is processed, the biogas produced in sweat is by special, equipment carries out Recovery Purifying, sludge is dried, crush to obtain the fermentation materials of powdery, fermentation materials are prepared into organic fertilizer or construction material through processing.This utility model controls middle temperature, high-temperature anaerobic fermentation process by adjusting rotating speed, alternate intermittent stirs to strengthen Flow of Goods and Materials mass transfer, it is sufficiently mixed uniform, fermentation is complete, acquisition organic solid castoff is carried out flexibly, efficient process, temperature control energy consumption is saved simultaneously, is conducive to enriching floras and aerogenesis to overflow.

Description

A kind of device of organic solid castoff dry-type anaerobic fermentation
Technical field
This utility model belongs to scrap concrete technical field, more particularly, it relates to a kind of organic solid castoff is dry The device of formula anaerobic fermentation.
Background technology
As Urbanization in China quickening, population increase, sewage disposal construction puts more effort, with changing food waste, agricultural trade The house refuses such as market rubbish and the organic solid castoff that fowl and animal excrement, municipal sludge are representative, its yield grow with each passing day, such as What effectively carries out " minimizing, innoxious, resource " process to these organic solid castoffs, it is to avoid to urban environmental hygiene Safety causes great threat, becomes the problem of social common concern.
Contain substantial amounts of organic matter, the energy and nutrient substance in these organic solid wastes, be appropriate to comprehensive resource utilization, Anaerobic digestion because its can by Organic substance minimizing, innoxious, stabilisation and therefrom reclaim or change the energy effect obtain Extensively apply.Wherein, common processing mode is to carry out wet type anaerobic fermentation.This mode as raw material solid content is very low, contain The water yield is high, easily causes material composition loss, and organic matter concentration is low, causes factor of created gase relatively low;Occur in sweat scum silica frost, The problems such as big quantity of fluid is produced after precipitation and fermentation, causes fluctuation of service, also increases later stage operation processing cost.Together When, internal energy consumption is larger, causes volume of equipment to increase, and cost of investment is higher.And in actual treatment these organic solid wastes, be drop Low cost of transportation, it usually needs be first dehydrated to which, reduces volume.And it is current, send out for high solid content organic solid waste anaerobism Find in the engineering of ferment, the municipal sludge content of organic matter is low, nitrogen content is high, and the house refuse sweat such as kitchen, agricultural trade is easily sent out Raw acid suppresses, and mobility is poor, heat and mass is uneven, causes the effect of their anaerobic fermentations unsatisfactory.Therefore, how The process for solving high solid content organic solid waste in real process is disposed, and is current problem demanding prompt solution.
The content of the invention
For the defect for overcoming prior art to exist, a kind of organic solid castoff dry-type anaerobic fermentation of this utility model offer Device.
This utility model solves the technical scheme adopted by its technical problem:
A kind of organic solid castoff dry-type anaerobic fermentation device, including support, are fixed with fermentation tank sheet on the support Body;The fermentation tank bodies top is provided with level-sensing device, temperature sensor, charging aperture, collection and confinement of gases mouth, relief valve port, described Fermentation tank body bottom portion is provided with discharging opening;The fermentation tank body interior is provided with two groups of shafts side by side, the shaft with set Put the stirring motor in fermentation tank body exterior side to connect, on the shaft, interval is fixed with multiple connecting shafts, the company Spindle is respectively equipped with stirring vane and stirrer gear on its top and centre position, and the highest mixing position of the stirring vane is higher than The highest liquid level of organic solid castoff;The fermentation tank inner body wall is provided with heater, and the heater is bilayer Heat tracing pipe.
In such scheme, the fermentation tank body is oval tank body, and its bottom is provided with movable chassis.
In such scheme, in the collection and confinement of gases mouth, three phase separator is provided with.
Implement a kind of device of organic solid castoff dry-type anaerobic fermentation of this utility model, have the advantages that:
(1) this utility model processes organic solid castoff using dry anaerobic fermentation process, compares current wet type anaerobism Fermentation technology, the solid content of material bring up to 15~20% by 7~10%, can make reaction unit volume reducing 30~70%, greatly Reduce greatly floor space and material heating energy consumption, it is possible to decrease 30~40% costs of investment.
(2) this utility model is dry using joint to organic solid castoffs such as house refuse, fowl and animal excrement and municipal sludges The mode of formula anaerobic fermentation, the content of organic matter of fermentation substrate can improve 30~40%, may advantageously facilitate ferment effect, improve energy Source recovery utilization rate.
(3) this utility model adopts middle temperature, the fermentation mode of high temperature alternate intermittent, can meet most of anaerobic bacterias Fully activity, improves inoculation efficiency under mesophilic condition;Fermentation can be continued again under the high temperature conditions, contribute to anaerobic fermentation speed Raising, reaction is abundant, improves fermenting property, and gas production is than traditional single middle temperature or high-temperature anaerobic fermentation gas production improve 10 ~15%.
(4) multigroup pulling flow type agitating device of this utility model using particular design, controls high temperature by adjusting rotating speed Anaerobic fermentation process, alternate intermittent stirring are sufficiently mixed uniformly with strengthening Flow of Goods and Materials mass transfer, and fermentation is complete, obtains to organic Solid waste carry out flexibly, efficient process, while saving temperature control energy consumption, be conducive to enriching floras and aerogenesis to overflow.
Description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Structural representations of the Fig. 1 for this utility model organic solid castoff dry-type anaerobic fermentation device.
Fig. 2 is a kind of flow chart of the process of organic solid castoff dry-type anaerobic fermentation of this utility model;
In figure:Support 1, fermentation tank body 2, level-sensing device 3, temperature sensor 4, charging aperture 5, collection and confinement of gases mouth 6, relief valve Mouth 7, discharging opening 8, shaft 9, stirring motor 10, connecting shaft 11, stirring vane 12, stirrer gear 13, heater 14.
Specific embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, accompanying drawing is now compareed detailed Illustrate specific embodiment of the present utility model.
As shown in figure 1, this utility model organic solid castoff dry-type anaerobic fermentation device, including support 1, on support 1 Fermentation tank body 2 is fixed with, fermentation tank body 2 is oval tank body, and its bottom is provided with movable chassis.Arcuate structure can make Installation for fermenting stirs, and when strengthening input and output material material mobility, movable chassis make processing environment have motility.Send out Level-sensing device 3, temperature sensor 4, charging aperture 5, collection and confinement of gases mouth 6, relief valve port 7 are provided with the top of fermentation tank body 2, can be adjusted and be sent out In fermentation tank body 2, different work loading heights and the time of staying carry out variable flow, control middle temperature, hot fermentation temperature, it is ensured that fermented Journey is controllable and safe carries out.Three phase separator is provided with collection and confinement of gases mouth 6, collection and confinement of gases rate can be effectively improved, gas Jing is received Collect and process, for follow-up cogeneration, fermentation tank body 2 is heated.2 bottom of fermentation tank body is provided with discharging opening 8.Fermentation Two groups of shafts 9, shaft 9 and the stirring motor for being arranged on 2 outside side of fermentation tank body are installed inside tank body 2 side by side 10 connections, on shaft 9, interval is fixed with multiple connecting shafts 11, and connecting shaft 11 is respectively equipped with stirring on its top and centre position Blade 12 and stirrer gear 13, the highest mixing position of stirring vane 12 are higher than the highest liquid level of organic solid castoff so that high The mixed substrates of viscosity preferably stir, and promote fermentation reaction, accelerate aerogenesis and overflow.Above-mentioned shaft arranged side by side 9 can be kept away The problems such as scum silica frost produced in exempting from sweat and precipitation, material is segmented in fermentation tank body 2 and is stirred, and is sufficiently mixed and sends out Ferment completely and forms pulling flow type reactive state, realizes that fermentation technology is run steadily in the long term.2 inwall of fermentation tank body is provided with heating Device 14, heater 14 are double-layer heat tracing pipe, are heated evenly material.
The municipal sludge of somewhere 50t/d, changing food waste etc. are processed using process of the present utility model and device organic Solid waste, technological parameter and final process effect it is as shown in table 1 below:
The technological parameter of 1 dry-type anaerobic fermentation of table is arranged and output result
Process material type Municipal sludge, domestic garbage mixing are centrally disposed
Material solid content 20~30%
The material content of organic matter 70%
Fermentation time 20~25 days
Unit gas production 30m3/ ton
Biogas methane content 55~65%
Biogas calorific value 20~21MJ/Nm3
The material that fermentation is completed is dried, crushes, and obtains the fermentation materials of powdery.Final fermented prod material moisture content is 30 ~40%, the content of organic matter 30~40% can be used as preparing the raw material of organic fertilizer or construction material.Dry-type anaerobic fermentation process The biogas of middle generation carries out reclaiming clean by collection and confinement of gases mouth, after cogeneration is the gentle fermentation of 2 liters of fermentation tank body Dry materials provide heat.
Under equal conditions, using dry-type anaerobic fermentation technology, the wet type that compares anaerobic fermentation technology, fermentation tank body 2 Volume reduces 70%, and floor space is substantially reduced, and reduces 20% cost of investment;Internal energy consumption reduces 35%, while producing Tolerance increased 15%.
As shown in Fig. 2 the process of this utility model organic solid castoff dry-type anaerobic fermentation, including following step Suddenly:
1) continuously entered by charging aperture 5 by the organic solid castoff that house refuse, fowl and animal excrement and municipal sludge are constituted Enter in fermentation tank body 2, start stirring motor 10 and heater 14, shaft 9 drives under the driving of stirring motor 10 and stirs Mixing blade 12 and stirrer gear 13 carries out intermittent stirring to organic solid castoff, wherein, the C/N of organic solid castoff is 18 ~25, the content of organic matter is 80%, and solid content is 25~35%;
2), when first, the internal temperature of fermentation tank body 2 rises to 33~37 DEG C, organic solid castoff is at 33~37 DEG C Continue anaerobic fermentation 7~8 days, the rotating speed of shaft is 5~8r/min;Then, stirring motor chopper frequency, fermentation tank sheet are increased When the internal temperature of body 2 rises to 52~55 DEG C, organic solid castoff continues anaerobic fermentation 3~5 days, stirring at 52~55 DEG C The rotating speed of axle is 10~15r/min;Then, when the internal temperature of fermentation tank body 2 rises to 60 DEG C, organic solid castoff is 60 Continue anaerobic fermentation 8~9 days at DEG C, the rotating speed of shaft is 10~15r/min;Finally, stop heating, fermentation tank body 2 Internal temperature was down to 33~37 DEG C in 2~3 days.Wherein, 9 daily 8~12h of mixing time of shaft.
3) biogas flows to biogas storage cabinet from fermentation tank body 2 by collection and confinement of gases mouth 6 and carries out Recovery Purifying, biogas residue from Discharging opening 8 is discharged, and sludge is dried, crushes to obtain the fermentation materials of powdery, and fermentation materials are obtained fertilizer through processing Material or construction material or soil conditioner;
4) by step 1) in 50~80wt% of organic solid castoff add new organic solid into fermentation tank body 2 Garbage, is also back to the biogas residue of 20~30%VOL in fermentation tank body 2, and repeat step is 2) to step 3), complete one and do The formula anaerobic fermentation cycle.
Embodiment of the present utility model is described above in conjunction with accompanying drawing, but this utility model is not limited to The specific embodiment stated, above-mentioned specific embodiment be only it is schematic rather than restricted, this area it is common Technical staff under enlightenment of the present utility model, without departing from this utility model objective and scope of the claimed protection situation Under, many forms can be also made, these are belonged within protection of the present utility model.

Claims (3)

1. a kind of organic solid castoff dry-type anaerobic fermentation device, it is characterised in that including support (1), on the support (1) It is fixed with fermentation tank body (2);Level-sensing device (3), temperature sensor (4), charging aperture are provided with the top of the fermentation tank body (2) (5), collection and confinement of gases mouth (6), relief valve port (7), fermentation tank body (2) bottom are provided with discharging opening (8);The fermentation tank sheet Two groups of shafts (9) are installed inside body (2) side by side, the shaft (9) be arranged on the outside side of fermentation tank body (2) Stirring motor (10) connects, and on the shaft (9), interval is fixed with multiple connecting shafts (11), and the connecting shaft (11) is in Qi Ding End and centre position are respectively equipped with stirring vane (12) and stirrer gear (13), and the highest mixing position of the stirring vane (12) is high In the highest liquid level of organic solid castoff;Fermentation tank body (2) inwall is provided with heater (14), the heating dress (14) are put for double-layer heat tracing pipe.
2. a kind of organic solid castoff dry-type anaerobic fermentation device according to claim 1, it is characterised in that described Fermentation tank body (2) is oval tank body, and its bottom is provided with movable chassis.
3. a kind of organic solid castoff dry-type anaerobic fermentation device according to claim 1, it is characterised in that the gas Three phase separator is provided with body collection port (6).
CN201621062977.7U 2016-09-19 2016-09-19 A kind of device of organic solid castoff dry-type anaerobic fermentation Active CN206052022U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106244442A (en) * 2016-09-19 2016-12-21 湖北加德科技股份有限公司 The process of a kind of organic solid castoff dry-type anaerobic fermentation and device thereof
CN108275775A (en) * 2018-03-12 2018-07-13 华北电力大学(保定) A method of strengthening organic wastewater fermentation gas
CN109321436A (en) * 2018-10-17 2019-02-12 浙江大学台州研究院 The continuous dry method slaking apparatus of waste and its processing method
CN113264789A (en) * 2021-05-15 2021-08-17 张涛 Fertilizer and processing method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106244442A (en) * 2016-09-19 2016-12-21 湖北加德科技股份有限公司 The process of a kind of organic solid castoff dry-type anaerobic fermentation and device thereof
CN108275775A (en) * 2018-03-12 2018-07-13 华北电力大学(保定) A method of strengthening organic wastewater fermentation gas
CN109321436A (en) * 2018-10-17 2019-02-12 浙江大学台州研究院 The continuous dry method slaking apparatus of waste and its processing method
CN113264789A (en) * 2021-05-15 2021-08-17 张涛 Fertilizer and processing method thereof
CN113264789B (en) * 2021-05-15 2022-06-14 山西和丰生物科技有限公司 Fertilizer and processing method thereof

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Denomination of utility model: Organic solid waste dry -type anaerobic fermentation's device

Effective date of registration: 20171208

Granted publication date: 20170329

Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch

Pledgor: Hubei Jiade Technology Co., Ltd.

Registration number: 2017420000043

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Date of cancellation: 20181220

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Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch

Pledgor: Hubei Jiade Technology Co., Ltd.

Registration number: 2017420000043

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PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Organic solid waste dry -type anaerobic fermentation's device

Effective date of registration: 20181228

Granted publication date: 20170329

Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch

Pledgor: Hubei Jiade Technology Co., Ltd.

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Date of cancellation: 20191224

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Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co., Ltd.

Pledgor: Hubei Jiade Technology Co., Ltd.

Registration number: 2018420000080

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