CN105859348A - Aerobic fermentation-based double-helix fermentation device suitable for large-scale processing of blue-green algae mud - Google Patents
Aerobic fermentation-based double-helix fermentation device suitable for large-scale processing of blue-green algae mud Download PDFInfo
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- CN105859348A CN105859348A CN201610320147.8A CN201610320147A CN105859348A CN 105859348 A CN105859348 A CN 105859348A CN 201610320147 A CN201610320147 A CN 201610320147A CN 105859348 A CN105859348 A CN 105859348A
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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
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
- C05F17/989—Flow sheets for biological or biochemical treatment
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
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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
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
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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
- 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
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The invention discloses an aerobic fermentation-based double-helix fermentation device suitable for large-scale processing of blue-green algae mud. The aerobic fermentation-based double-helix fermentation device comprises a screw conveyor, a material stirring tank and a double-helix main fermentation system, and can achieve the automatic conveying, stirring, temperature control and drying of materials. Tthe processing flow is as follows: transferring algae mud in an algae storage tank to the screw conveyor through a hoister; conveying to the stirring tank through the screw conveyor; adding straws, EM agents and other auxiliary materials; adjusting a CN ratio to be 15-35 and a moisture content to be 50-65%; stirring and mixing; feeding to the double-helix main fermentation system; setting the temperature at 35-40 DEG C; feeding to a drying system through the screw conveyor after fermentation for seven days; granulating or stacking directly after drying and cooling. An algae mud organic fertilizer obtained by using such a device contains total nutrient being 5% or higher and organic matters being 50% or higher; the device is high in degree of automation and easy to operate, can realize continuous disposal, is convenient for replication and expansion, and reduced in disposal costs and pollution.
Description
Technical field
The present invention relates to field of environmental technology, particularly belong to a kind of Double helix installation for fermenting being suitable for blue algae mud scale process based on aerobic fermentation.
Background technology
Large-scale blue-green alga bloom reduces water resource and utilizes usefulness, limit the mankind to drinking, industry, agricultural and the water needs such as view, amusement, ecology is destroyed, and causes huge economic loss.
In recent years, taking physics, the bloom blue algae in lake is purged by chemical and biological method, effect is obvious, but when large area uses, bigger by environmental influence, it tends to be difficult to reach the effect of expectation.Leaving from station by setting up algae moisture, in the region of bloom blue algae bulk deposition, use mechanical harvest method to be swept off by bloom blue algae in a short time.But the huge blue alga biomass of results must carry out disposal of resources utilization, otherwise easily causes secondary pollution.Domestic once had people bloom blue algae directly directly to apply rice field as fertilizer, although achieving certain effect, but, these poisonous bloom blue algaes will continue growth and breeding in rice field, rot and discharge noxious substance (Algae toxins) to cause serious secondary pollution.
Algae mud water content 80-85% that cyanophyceae is formed after processed, can be by utilizing after anaerobism or aerobic fermentation.But anaerobic fermentation exists certain shortcomings and deficiencies, as anaerobic fermentation needs special air-tightness, the preferable fermentation tank of heat insulating ability, temperature is required by fermenting step.Aerobic fermentation is the method for disposal that a kind of comparison is feasible, but traditional aerobic compost mode automaticity is low, fermentation place is dirty, random, smelly, and cost of disposal is higher, and it is big that difficulty is disposed in scale.
In order to overcome above-mentioned difficulties, the invention provides a kind of scale blue algae mud processing means based on aerobic fermentation.
Summary of the invention
Present invention aim at providing a kind of and be suitable for the device that blue algae mud scale is disposed based on aerobic fermentation, complete equipment automaticity is high, easy and simple to handle; continuous production is strong, and transreplication expands, and fermentation space enrironment is improved; cyanophyceae treatment effeciency is high, has higher application potential.
Technical scheme is as follows:
A kind of Double helix installation for fermenting being suitable for blue algae mud scale process based on aerobic fermentation; include conveying worm, material stirring tank, Double helix main body fermentation system; conveying worm includes helical axis, reductor, motor; helical axis diameter 150mm, total length 15 meters, power of motor 5KW; algae mud is entered conveying worm by charging aperture; control helix speed by motor, reductor, algae mud is transported in material stirring tank, transfer rate 10-15 cubic meter/hour；Material stirring tank includes stirring motor, tank skin, four stirring vanes, the diameter of tank skin 2 meters, highly 1.5 meters, stirring motor power 5KW；Described Double helix main body fermentation system includes the fermentation system and drying system separated by movable valve, fermentation system overall length is divided into 5 sections, every segment length 3 meters, highly 1.5 meters, width suitable for reading 3 meters, end opening width 0.9 meter, every section suitable for reading is provided with removable cover and observation panel, volume 43 cubes, the diameter 400mm of double-screw shaft, be in transmission connection motor and reductor respectively, power of motor 18.5KW, fermentation system outer wall encloses and covers 30mm heavy parting, is used for, by circulating hot water, insulation of fermenting in interlayer, and interlayer is cladded with heat-insulation layer；Described drying system is divided into 5 sections, every segment length 3 meters, highly 1.5 meters, width suitable for reading 3 meters, end opening width 0.9 meter, every section suitable for reading is provided with removable cover and observation panel, volume 45 cubes, the diameter 400mm of double-screw shaft, double-screw shaft is connected to motor, power of motor 18.5KW, drying system outer wall encloses and covers the thick interlayer of 60mm, is provided with many group resistance-type heating rods, and is passed through conduction oil in interlayer, for dry materials, interlayer is cladded with heat-insulation layer.
Processing technique is that mixed for agitator tank material is entered fermentation system; logical 35-40 DEG C of circulating hot water insulation; fermentation is stirred 2-3 time; drying system is entered after fermenting 7; it is passed through intensification dried material after conduction oil; by dried material by feed opening enter belt conveyor, enter granulator granulation, the most qualified after pack warehouse-in.
Described fermentation system double-screw shaft rotates forward and promotes material forward, and double-screw shaft reversion promotes material backward, and it is material stirring that double-screw shaft rotates a positive and a negative, transfer rate: 45 cubes of material conveyings 15 meters are time-consuming 5 minutes.
Each component operation principle of the present invention is as follows:
1, conveying worm
Structural principle is shown in Fig. 1, blue algae mud water content 80-85%, and the boosted machine of blue algae mud in storage algae pond is entered conveying worm, by the forward impetus of spiral, carries algae mud, transfer rate 10-15 cubic meter/hour.
2, material stirring tank
Structural principle is shown in Fig. 2, through the algae mud entrance material stirring tank of helical feed, puts into the rice straw after pulverizing, EM microbial inoculum, calcium superphosphate, straw length 2-4mm successively, adjusts CN and mix 2-3 minute than 15-35, moisture content 50-65%, stirring.
3, Double helix main body fermentation system
As it is shown on figure 3, Double helix main body fermentation system overall length 30 meters, it is divided into fermentation and drying system, utilizes movable valve to separate between system, cumulative volume 86 cubes.System uses double helix design, can control rotating.Double helix rotates forward and promotes material forward, and Double helix reversion promotes material backward, and it is material stirring that Double helix rotates a positive and a negative, transfer rate: 45 cubes of material conveyings 15 meters are time-consuming 5 minutes.
Fermentation system overall length 15 meters, is divided into 5 sections, every segment length 3 meters, highly 1.5 meters, width suitable for reading 3 meters, end opening width 0.9 meter, every section of design activity cover plate suitable for reading and observation panel, volume 43 cubes.Double helix specification is diameter 400mm, designs two motors and reductor, power of motor 18.5KW.30mm interlayer is covered in fermentation system complete machine periphery, and logical circulating hot water is used for insulation of fermenting, and interlayer is cladded with heat-insulation layer.
Drying system overall length 15 meters, is divided into 5 sections, every segment length 3 meters, highly 1.5 meters, width suitable for reading 3 meters, end opening width 0.9 meter, every section of design activity cover plate suitable for reading and observation panel, volume 45 cubes.Spiral specification is diameter 400mm, two motors, power of motor 18.5KW.60mm interlayer is covered in drying system complete machine periphery, and interlayer, built with many group resistance-type heating rods, is passed through conduction oil, utilizes heating rod to heat up, and for dry materials, interlayer is cladded with heat-insulation layer.
The material of agitator tank is put into Double helix fermentation system, material position and height is adjusted flexibly by the forward and reverse impetus of Double helix, open top observation panel.It is passed through the circulating hot water of 35-40 DEG C to fermentation system heat preservation sandwich layer, accelerates material fermentation process, after 2 days, open removable cover.Period, by adjusting the forward and reverse motion of Double helix, is sufficiently stirred for material 2-3 time, keeps fermentation 7 days.Material fermentation completed again enters drying system by Double helix forward impetus, being passed through conduction oil in drying system interlayer, utilize heating rod to heat, conduction oil temperature rises rapidly to 100-150 DEG C, dry period uninterruptedly stirs material, 1-3 hour drying time.
4, material post processing
After being dried, opening removable cover, stirring heat radiation, after material cooling, drying system feed opening enters belt conveyor and enters granulator granulation, and the most qualified rear metering packing is put in storage.
Compared with existing composting technology, beneficial effects of the present invention is embodied in:
Whole system automaticity is high, and continuous production is strong, and labor intensity reduces, and space enrironment is improved, temperature-controllable, and fermentation time is greatly shortened, and fermentation efficiency is higher.Reach operational management convenient, low cost, process the advantages such as fast.
Accompanying drawing explanation
Fig. 1 is the process process schematic representation of the present invention.
Fig. 2 is the system structure schematic diagram of the present invention.
Fig. 3 is the conveying worm schematic diagram of the present invention.
Fig. 4 is the material stirring tank schematic diagram of the present invention.
Detailed description of the invention
See accompanying drawing; a kind of Double helix installation for fermenting being suitable for blue algae mud scale process based on aerobic fermentation; include conveying worm 1, material stirring tank 2, Double helix main body fermentation system 3; conveying worm 1 includes helical axis 2, reductor 3, motor 4; helical axis 2 diameter 150mm, total length 15 meters, power of motor 5KW; algae mud is entered conveying worm 1 by charging aperture; helix speed is controlled by motor 4, reductor 3; algae mud is transported in material stirring tank 2, transfer rate 10-15 cubic meter/hour；Material stirring tank 2 includes stirring motor 5,6, four stirring vanes 7 of tank skin, the diameter of tank skin 62 meters, highly 1.5 meters, stirring motor 5 power 5KW；Described Double helix main body fermentation system 3 includes the fermentation system 9 and drying system 10 separated by movable valve 8, fermentation system 9 overall length is divided into 5 sections, every segment length 3 meters, highly 1.5 meters, width suitable for reading 3 meters, end opening width 0.9 meter, every section suitable for reading is provided with removable cover and observation panel, volume 43 cubes, the diameter 400mm of double-screw shaft, be in transmission connection motor and reductor respectively, power of motor 18.5KW, fermentation system outer wall encloses and covers 30mm heavy parting, is used for, by circulating hot water, insulation of fermenting in interlayer, and interlayer is cladded with heat-insulation layer；Described drying system is divided into 5 sections, every segment length 3 meters, highly 1.5 meters, width suitable for reading 3 meters, end opening width 0.9 meter, every section suitable for reading is provided with removable cover and observation panel, volume 45 cubes, the diameter 400mm of double-screw shaft, double-screw shaft is connected to motor, power of motor 18.5KW, drying system outer wall encloses and covers the thick interlayer of 60mm, is provided with many group resistance-type heating rods, and is passed through conduction oil in interlayer, for dry materials, interlayer is cladded with heat-insulation layer.
It is that mixed for agitator tank material is entered fermentation system that assembly of the invention processes technique; logical 35-40 DEG C of circulating hot water insulation; fermentation is stirred 2-3 time; drying system is entered after fermenting 7; it is passed through intensification dried material after conduction oil; by dried material by feed opening enter belt conveyor, enter granulator granulation, the most qualified after pack warehouse-in.
Described fermentation system double-screw shaft rotates forward and promotes material forward, and double-screw shaft reversion promotes material backward, and it is material stirring that double-screw shaft rotates a positive and a negative, transfer rate: 45 cubes of material conveyings 15 meters are time-consuming 5 minutes.
Embodiment 1:2 cube Chaohu Lake algae mud processes
1,1 cube of Chaohu Lake algae mud is entered agitator tank by elevator, conveying worm, add 725 kilograms and be crushed to 2-4mm rice straw and 42.5 kilograms of calcium superphosphate, 5 kilograms of Inoculants, add water and moisture content is adjusted to 55-60%, after material stirring, enter Double helix fermentation system.
2, repeat 1 step, 2 tons of algae mud are entered Double helix fermentation system with mixed material.
3, open fermentation system observation panel, in heat preservation sandwich layer, be passed through 35-40 DEG C of circulating hot water, after 2 days, open removable cover, fermentation is stirred 2-3 time, each mixing time 15-60 minute.
4, after fermenting 7, by material through helical feed to drying system, being passed through conduction oil in drying system interlayer, utilize heating rod to heat, conduction oil temperature rises rapidly to 100-150 DEG C, and dry period uninterruptedly stirs material, 1-3 hour drying time.
5, after being dried, opening removable cover, stirring heat radiation, after material cooling, drying system feed opening enters belt conveyor and enters granulator granulation, and the most qualified rear metering packing is put in storage.
After testing, indices meets NY525-2012 organic fertilizer standard to material after having fermented.Total nutrient (N+P2O5+K2O) content 5.82%, the content of organic matter 54.3%, Algae toxins content is 0.
Embodiment 2:5 cube Chaohu Lake algae mud processes
1,1 cube of Chaohu Lake algae mud is entered agitator tank by elevator, conveying worm, add 725 kilograms and be crushed to 2-4mm rice straw and 42.5 kilograms of calcium superphosphate, 5 kilograms of Inoculants, add water and moisture content is adjusted to 55-60%, after material stirring, enter Double helix fermentation system.
2, repeat 1 step four times again, 5 tons of algae mud are entered Double helix fermentation system with mixed material.
3, open fermentation system observation panel, in heat preservation sandwich layer, be passed through 35-40 DEG C of circulating hot water, after 2 days, open removable cover, fermentation is stirred 2-3 time, each mixing time 15-60 minute.
4, after fermenting 7, by material through helical feed to drying system, being passed through conduction oil in drying system interlayer, utilize heating rod to heat, conduction oil temperature rises rapidly to 100-150 DEG C, and dry period uninterruptedly stirs material, 1-3 hour drying time.
5, after being dried, opening removable cover, stirring heat radiation, after material cooling, drying system feed opening enters belt conveyor and enters granulator granulation, and the most qualified rear metering packing is put in storage.
After testing, indices meets NY525-2012 organic fertilizer standard to material after having fermented.Total nutrient (N+P2O5+K2O) content 6.1%, the content of organic matter 55.6%, Algae toxins content is 0.
Embodiment 3:8 cube Chaohu Lake algae mud processes
1,1 cube of Chaohu Lake algae mud is entered agitator tank by elevator, conveying worm, add 725 kilograms and be crushed to 2-4mm rice straw and 42.5 kilograms of calcium superphosphate, 5 kilograms of Inoculants, add water and moisture content is adjusted to 55-60%, after material stirring, enter Double helix fermentation system.
2, repeat 1 step seven times again, 8 tons of algae mud are entered Double helix fermentation system with mixed material.
3, open fermentation system observation panel, in heat preservation sandwich layer, be passed through 35-40 DEG C of circulating hot water, after 2 days, open removable cover, fermentation is stirred 2-3 time, each mixing time 15-60 minute.
4, after fermenting 7, by material through helical feed to drying system, being passed through conduction oil in drying system interlayer, utilize heating rod to heat, conduction oil temperature rises rapidly to 100-150 DEG C, and dry period uninterruptedly stirs material, 1-3 hour drying time.
5, after being dried, opening removable cover, stirring heat radiation, after material cooling, drying system feed opening enters belt conveyor and enters granulator granulation, and the most qualified rear metering packing is put in storage.
After testing, indices meets NY525-2012 organic fertilizer standard to material after having fermented.Total nutrient (N+P2O5+K2O) content 5.9%, the content of organic matter 56.2%, Algae toxins content is 0.
Claims (3)
1. the Double helix installation for fermenting being suitable for blue algae mud scale process based on aerobic fermentation; it is characterized in that; include conveying worm, material stirring tank, Double helix main body fermentation system; conveying worm includes helical axis, reductor, motor; helical axis diameter 150mm, total length 15 meters, power of motor 5KW; algae mud is entered conveying worm by charging aperture; helix speed is controlled by motor, reductor; algae mud is transported in material stirring tank, transfer rate 10-15 cubic meter/hour；Material stirring tank includes stirring motor, tank skin, four stirring vanes, the diameter of tank skin 2 meters, highly 1.5 meters, stirring motor power 5KW；Described Double helix main body fermentation system includes the fermentation system and drying system separated by movable valve, fermentation system overall length is divided into 5 sections, every segment length 3 meters, highly 1.5 meters, width suitable for reading 3 meters, end opening width 0.9 meter, every section suitable for reading is provided with removable cover and observation panel, volume 43 cubes, the diameter 400mm of double-screw shaft, be in transmission connection motor and reductor respectively, power of motor 18.5KW, fermentation system outer wall encloses and covers 30mm heavy parting, is used for, by circulating hot water, insulation of fermenting in interlayer, and interlayer is cladded with heat-insulation layer；Described drying system is divided into 5 sections, every segment length 3 meters, highly 1.5 meters, width suitable for reading 3 meters, end opening width 0.9 meter, every section suitable for reading is provided with removable cover and observation panel, volume 45 cubes, the diameter 400mm of double-screw shaft, double-screw shaft is connected to motor, power of motor 18.5KW, drying system outer wall encloses and covers the thick interlayer of 60mm, is provided with many group resistance-type heating rods, and is passed through conduction oil in interlayer, for dry materials, interlayer is cladded with heat-insulation layer.
Double helix installation for fermenting the most according to claim 1; it is characterized in that; processing technique is that mixed for agitator tank material is entered fermentation system; logical 35-40 DEG C of circulating hot water insulation, stirs 2-3 time in fermentation, enters drying system after fermenting 7; it is passed through intensification dried material after conduction oil; by dried material by feed opening enter belt conveyor, enter granulator granulation, the most qualified after pack warehouse-in.
Double helix installation for fermenting the most according to claim 1, it is characterized in that, described fermentation system double-screw shaft rotates forward and promotes material forward, and double-screw shaft reversion promotes material backward, it is material stirring that double-screw shaft rotates a positive and a negative, transfer rate: 45 cubes of material conveyings 15 meters are time-consuming 5 minutes.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804090Y (en) * | 2005-07-14 | 2006-08-09 | 潘凌烊 | Prodn. appts for biological organic fertilizer |
| CN201121052Y (en) * | 2007-11-30 | 2008-09-24 | 王雪源 | Double helix feeder |
| CN102069997A (en) * | 2010-12-17 | 2011-05-25 | 无锡市华通电力设备有限公司 | Double-spiral stirring conveyer |
| CN103304117A (en) * | 2012-03-16 | 2013-09-18 | 天津清华德人环境工程有限公司 | Sludge aerobic fermentation treatment method and device |
| CN103964661A (en) * | 2013-02-06 | 2014-08-06 | 同济大学 | System and method for gradient dewatering drying of sludge |
| CN104211460A (en) * | 2014-08-29 | 2014-12-17 | 南开大学 | Fast aerobic composting reaction device and application thereof |
-
2016
- 2016-05-13 CN CN201610320147.8A patent/CN105859348A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804090Y (en) * | 2005-07-14 | 2006-08-09 | 潘凌烊 | Prodn. appts for biological organic fertilizer |
| CN201121052Y (en) * | 2007-11-30 | 2008-09-24 | 王雪源 | Double helix feeder |
| CN102069997A (en) * | 2010-12-17 | 2011-05-25 | 无锡市华通电力设备有限公司 | Double-spiral stirring conveyer |
| CN103304117A (en) * | 2012-03-16 | 2013-09-18 | 天津清华德人环境工程有限公司 | Sludge aerobic fermentation treatment method and device |
| CN103964661A (en) * | 2013-02-06 | 2014-08-06 | 同济大学 | System and method for gradient dewatering drying of sludge |
| CN104211460A (en) * | 2014-08-29 | 2014-12-17 | 南开大学 | Fast aerobic composting reaction device and application thereof |
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Application publication date: 20160817 |
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