CN108660075A - A kind of horizontal plug-flow anaerobic dry fermentation apparatus of organic waste and technique - Google Patents
A kind of horizontal plug-flow anaerobic dry fermentation apparatus of organic waste and technique Download PDFInfo
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- CN108660075A CN108660075A CN201810897900.9A CN201810897900A CN108660075A CN 108660075 A CN108660075 A CN 108660075A CN 201810897900 A CN201810897900 A CN 201810897900A CN 108660075 A CN108660075 A CN 108660075A
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- 238000000855 fermentation Methods 0.000 title claims abstract description 96
- 239000010815 organic waste Substances 0.000 title claims abstract description 61
- 230000004151 fermentation Effects 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 54
- 210000003608 fece Anatomy 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000000126 substance Substances 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 210000001331 nose Anatomy 0.000 description 11
- 230000000712 assembly Effects 0.000 description 8
- 238000000429 assembly Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
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- 239000011368 organic material Substances 0.000 description 2
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- 238000004064 recycling Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
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- C12M21/16—Solid state fermenters, e.g. for koji production
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- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
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- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
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Abstract
A kind of horizontal plug-flow anaerobic dry fermentation apparatus of organic waste and technique, belong to technical field of anaerobic fermentation.Between dry substance concentration in tank can be promoted to 30%~60% by it, heat consumption is effectively saved, factor of created gase is improved.The feed end and discharge end of pretreatment pool are equipped with water drenching pipeline, the discharge end of pretreatment pool is equipped with feeder, feeder is connected to the feed inlet of anaerobic fermentation tank, the discharge port of anaerobic fermentation tank is connected to the entrance of squeezer, the biogas residue that conveyer belt two is arranged at squeezer and conveying presser solid outlet is discharged outward, biogas slurry is delivered in cow dung pond by biogas slurry pond by delivery pipe, and cow dung pond is connected to the entrance of water drenching pipeline, and pulling flow type agitating shaft is equipped in anaerobic fermentation tank.The anaerobic fermentation tank of the present invention can make in tank dry substance concentration in dry substance concentration between 30%~60%, effectively save heat consumption, improve factor of created gase, improve earning rate.
Description
Technical field
The invention belongs to technical field of anaerobic fermentation, more particularly to a kind of horizontal plug-flow anaerobic dry fermentation of organic waste
Device and technique.
Background technology
In existing industrialization quantity-produced anaerobic fermentation technology, majority uses continuous-stirring reactor system CSTR techniques
And main body is complete hybrid anaerobic digester, existing domestic such technique majority requires dry substance concentration 10% hereinafter, at this moment leading to
Crossing the effect of blender can allow biogas slurry to circulate, in circulating stirring or using overturning flow by floating
Material pushes, and prevents from crusting, once crust can obviously inhibit aerogenesis, such CSTR techniques to lead to the problem of two：1. dry matter is dense
Degree cannot be excessively high, and otherwise biogas slurry, which cannot smoothly flow, will suspended matter crust, and low concentration will obtain lower volume production
Gas rate, 2. complete hybrid techniques can in a short time mix the material being newly added with original material in pond, in daily discharge
The material discharge being newly added always is had in the process, wastes real estate impact aerogenesis, 3. lower dry substance concentrations make organic waste
Heavier species precipitate in gurry, the beds of precipitation can influence the normal work of the conduction and discharge system of heating system again, say with
Need the clear pond of timing.4. mainly changing gas production with thermal energy in biogas engineering actual production, most of thermal energy is by moisture absorption, medium temperature
Fermentation is mostly 32 DEG C~38 DEG C needs supplement thermal energy, the Northeast especially prominent at ambient temperature so that the biogas of output is worth
Less than heat cost,
According to volume yield rate is required 0.8 in straw methane engineering production engineering specifications NY/T2142-2012~
1.0m3/ (m3d) or more, existing large size is that the biogas engineering of raw material is no more than this standard using agriculture and animal husbandry waste, in actual production
In only secure normal ton factor of created gase ensure that (Dry corn stalk stalk ton produces methane quantity 300m simultaneously3) volume yield rate is more than 2.0m3/
(m3d) income can be just obtained more than, it is ensured that ton gas production, demurrage of the material in tank is crucial, only in fermentation tank
Material realizes step-by-step movement movement, just can ensure that residence time of the unit material in tank, fermentation period are fixed so only
It improves dry substance concentration to feed to obtain higher volume yield rate, involved high gravity fermentation prior art is more
Garage type ferments, and needs to remove biogas residue filler again after the fermentation of this technique filler, cannot be formed based on continuous gas generation and manual operation,
Be not suitable for large-scale industry continuous production.
Invention content
In view of the above existing problems in the prior art, the present invention provides a kind of horizontal plug-flow anaerobic dry fermentations of organic waste
Device and technique have effectively saved heat consumption, have improved production between dry substance concentration in tank can be promoted to 30%~60% by it
Gas rate.
The technical solution used in the present invention is：A kind of horizontal plug-flow anaerobic dry fermentation apparatus of organic waste, including it is defeated
Send band one, pretreatment pool, feeder, anaerobic fermentation tank, squeezer, conveyer belt two, biogas slurry conduit, biogas slurry pond, delivery pipe, cow dung
Pond, water drenching pipeline and pulling flow type agitating shaft；Organic waste is delivered to stack retting in pretreatment pool by the conveyer belt one, described pre-
The feed end and discharge end of processing pond are equipped with water drenching pipeline, and the discharge end of pretreatment pool is equipped with feeder, the feeder with
The feed inlet of anaerobic fermentation tank is connected to and by organic waste conveying anaerobic fermentation tank fermentation, the natural pond that the anaerobic fermentation tank is equipped with
Gas efferent duct connects external gas transmission line and exports the biogas in anaerobic fermentation tank, the discharge port of anaerobic fermentation tank and squeezer
Entrance is connected to, and the organic waste to ferment through anaerobic fermentation tank is carried out separating dry space from moist space by squeezer, and the setting of the conveyer belt two exists
The biogas residue that simultaneously conveying presser solid outlet is discharged outward at squeezer, the liquid outlet of the biogas slurry tube at one end and squeezer
Connection, the biogas slurry conduit other end are connected to biogas slurry pond, and biogas slurry is delivered in cow dung pond by the biogas slurry pond by delivery pipe, cow dung
Pond is connected to the entrance of water drenching pipeline, and pulling flow type agitating shaft is equipped in the anaerobic fermentation tank.
A kind of horizontal plug-flow anaerobic dry fermentation technique of organic waste, includes the following steps：
One, organic waste is delivered to stack retting in pretreatment pool by the conveyer belt one, while water drenching pipeline is by cow dung pond
In interior biogas slurry and cow dung water spray to pretreatment pool；
Two, organic waste makes material be warming up to 60 DEG C or more by 5~7 days stack rettings of pretreatment pool；
Three, three groups of movable floors move under the action of oil cylinder to the discharge port of pretreatment pool, and feeder is to organic waste
Gurry is continuously stirred, and after the completion of three groups of movable floor conveying organic wastes, every group of movable floor is under the action of oil cylinder
After returning to initial position successively, movement next time is carried out；
Four, feeder continuously stirs organic materials, and the spiral propeller one in the feed pipe of anaerobic fermentation tank will be organic
Material continuously pushes in anaerobic fermentation tank；
Five, dry substance concentration ferments in 30%~60% organic waste in anaerobic fermentation tank；
Six, the biogas that organic waste ferments in anaerobic fermentation tank is exported through biogas output pipe to external gas transmission line；
Seven, it is delivered to squeezer through discharge port of the organic waste through anaerobic fermentation tank of anaerobic fermentation tank after fermentation
It is interior；
Eight, fermentate is carried out separating dry space from moist space and isolates biogas residue and biogas slurry by squeezer, and biogas residue is defeated outward through conveyer belt two
It send, biogas slurry is sent into through water pump in biogas slurry pond；
Nine, accumulation has cow dung in the intake pool in cow dung pond, and the biogas slurry in biogas slurry pond is sprayed through delivery pipe into intake pool；Ox
Excrement flows into after dilution in intermediate pool, and after intermediate pool sediment, cow dung water flows into discharge bay, and water drenching pipeline will be in discharge bay
Water spray to pretreatment pool in, realize recycling for biogas slurry.
The beneficial effects of the present invention are：
1. the anaerobic fermentation tank of the present invention can make dry substance concentration in tank effectively save heat between 30%~60%
Consumption improves factor of created gase, improves earning rate.
2. feeder of the present invention continuously stirs, continuous feed, feeding in link utmostly reduces thermal losses, is not required to pair
Material heating can also obtain higher feeding temperature, and taper feed pipe inside spin propeller one can make material pressurize, and inhibit tank
Phenomena such as exudation of interior biogas, dry substance concentration fermentation tank at 30%~60% are not in crust, and material deposits, organic waste
In exhaust end mud dress is presented after fully fermenting in gurry, when discharge unlikely generation gas leak phenomenon.
3. multiple blades being arranged by spiral on the stirring axis body of pulling flow type agitating shaft of the present invention, when main shaft slowly rotates
When, the more dry material in side pushes a high position to by blade in tank, due to gravity material can to slightly moving at low level blade, and
The material of cross-wise direction can be thoroughly mixed, (the stream of the not no liquid of dry substance concentration >=30% after more dry material enters tank body
Dynamic property), lateral flow is not will produce under the action of pulling flow type agitating shaft, the material that large area would not be also formed in tank is mixed
It closes, blade mixes the material stirring on the surfaces of revolution, removes surface of material humus layer, keeps biogas slurry fully mixed with unfermentable material
It closes, accelerates fermentation, while bulk material, material that can integrally be moved to the discharge end of low level low-density from high-order highdensity feed end
Dynamic, local material forms step-by-step movement movement, it is ensured that demurrage of the material in anaerobic fermentation tank, and avoid full mixing
Formula technique can in a short time mix the material being newly added with original material in pond, always be had in daily discharging process new
The material of addition is discharged, the problem of wasting real estate impact aerogenesis.
4. the present invention is moved by realizing step-by-step movement of the material in anaerobic fermentation tank, it is ensured that material is in anaerobism
The demurrage fermented in tank, ensure that a ton gas production；The material of dry substance concentration is improved meanwhile, it is capable to ferment,
Higher volume yield rate is obtained, large-scale industry continuous production is suitble to.
Description of the drawings
Fig. 1：Axonometric drawing of the present invention；
Fig. 2：Front view of the present invention；
Fig. 3：Pretreatment pool front view of the present invention；
Fig. 4：The vertical view of Fig. 3；
Fig. 5：Oil cylinder scheme of installation of the present invention；
Fig. 6：Pulling flow type agitating shaft axonometric drawing of the present invention；
Fig. 7：Streaming agitating shaft right view of the present invention；
Fig. 8：Cow dung pond of the present invention axonometric drawing；
Fig. 9：Cow dung pond of the present invention side view；
Figure 10：Flow chart of the present invention；
Figure 11：Anaerobic fermentation tank axonometric drawing of the present invention；
Figure 12：Tank courage and ribs structural schematic diagram of the present invention；
Figure 13：Bearing support assemblies structural schematic diagram of the present invention；
Figure 14：Seal assembly scheme of installation of the present invention；
Figure 15：Flange seam allowance schematic diagram of the present invention；
Figure 16：Air inflation nozzle and pressure gauge scheme of installation of the present invention；
Wherein：1- conveyer belts one；2- pretreatment pools；2-1- movable floors；2-2- connecting plates；2-3- oil cylinders；2-4- chassis；
3- feeders；3-1- horizontal feed rollers；3-2- spiral agitators；3-3- blades；3-4- motors one；3-5- motors two；4- anaerobism
Fermentation tank；4-1- biogas output pipes；4-2- feed pipes；4-3- spiral propellers one；4-4- motors three；4-5- discharge nozzles；4-6-
Spiral propeller two；4-7- tank bodies；4-7-1- tank courages；4-7-2- ribs；4-8- seal assemblies；4-9- bearing support assemblies；
4-9-1- ball bearings；4-9-2- supporting racks；4-10- observation windows；4-11- manholes；Access hole under 4-12-；4-13- pressure sensings
Device；4-14- temperature sensors；4-15- motors four；5- squeezers；6- conveyer belts two；7- biogas slurry conduits；8- water pumps one；9- biogas slurries
Pond；10- delivery pipes；11- cow dungs pond；11-1- intake pools；11-2- intermediate pools；11-3- discharge bays；12- water drenching pipelines；13- is pushed away
Streaming agitating shaft；13-1- stirs axis body；13-2- blades；13-3- hollow shafts；13-4- connecting flanges；13-5- spindle noses；13-6-
Centre frame；13-6-1- sliding bearings；13-6-2- connecting rods；13-7- location holes；13-8- seal grooves；13-9- sealing joint strips；
13-10- connection bolts；13-11- air inflation nozzles；13-12- pressure gauges；14- blenders；15- grounds；16- decelerating motors；16-1-
Speed reducer toggle；17- holders；18- positive/negative pressure protectors；19- heating tubes；20- workbench.
Specific implementation mode
As shown in Fig. 1~Figure 16, a kind of horizontal plug-flow anaerobic dry fermentation apparatus of organic waste, including it is conveyer belt 1, pre-
Processing pond 2, feeder 3, anaerobic fermentation tank 4, squeezer 5, conveyer belt 26, biogas slurry conduit 7, biogas slurry pond 9, delivery pipe 10, cow dung
Pond 11, water drenching pipeline 12 and pulling flow type agitating shaft 13；Organic waste is delivered to heap in pretreatment pool 2 by the conveyer belt 1
It macerates, the feed end and discharge end of the pretreatment tank 2 are equipped with water drenching pipeline 12, and the discharge end of pretreatment pool 2 is equipped with feeder
3, the feeder 3 is connected to the feed inlet of anaerobic fermentation tank 4 and organic waste conveying anaerobic fermentation tank 4 ferments, described
The biogas output pipe 4-1 that anaerobic fermentation tank 4 is equipped with connects external gas transmission line and exports the biogas in anaerobic fermentation tank 4, anaerobism
The discharge port of fermentation tank 4 is connected to the entrance of squeezer 5, and squeezer 5 carries out the organic waste to ferment through anaerobic fermentation tank 4
Separating dry space from moist space, the biogas residue that the conveyer belt 26 is arranged at squeezer 5 and 5 solid outlet of conveying presser is discharged outward are described
7 one end of biogas slurry conduit is connected to the liquid outlet of squeezer 5, and 7 other end of biogas slurry conduit is connected to biogas slurry pond 9, the biogas slurry pond 9
Biogas slurry is delivered in cow dung pond 11 by delivery pipe 10, cow dung pond 11 is connected to the entrance of water drenching pipeline 12, the anaerobism hair
One or two pulling flow type agitating shaft 13 is equipped in fermentation tank 4.
Water pump 1 is installed on the biogas slurry conduit 7.
As shown in Fig. 3~Fig. 5, the bottom plate of the pretreatment tank 2 closely and is slidably matched successively for multiple movable floor 2-1
It tiling, multiple movable floor 2-1 are arranged along 2 length direction of pretreatment pool, and multiple movable floor 2-1 are divided into three groups,
Three groups of movable floor 2-1 are arranged alternately successively, are fixedly connected by connecting plate 2-2 between multiple movable floor 2-1 in every group,
Three connecting plate 2-2 are arranged at the feed end of pretreatment pool 2, and three connecting plate 2-2 are respectively flexible with oil cylinder 2-3
Bar outer end is fixedly connected, and the cylinder body of three oil cylinder 2-3 is fixedly connected with the chassis 2-4 that pretreatment pool 2 is equipped with.
Three groups of movable floor 2-1 are arranged alternately successively, with movable floor 2-1 be six citing, multiple movable floor 2-1 according to
Secondary is the first movable floor, the second movable floor, third movable floor, the 4th movable floor, the 5th movable floor, the 6th activity
Floor, wherein the first movable floor and the 4th movable floor are divided into first group of movable floor, the second movable floor and the 5th activity
Floor is divided into second group of movable floor, third movable floor and the 6th movable floor and is divided into third group movable floor.
The feeder 3 includes horizontal feed roller 3-1, multiple spiral agitator 3-2 and multiple blade 3-3, the level
The discharge outlet in pretreatment pool 2 is arranged along 2 width direction of pretreatment pool by feed roller 3-1, and the multiple spiral agitator 3-2 is equal
It is vertically arranged in the discharge outlet of pretreatment pool 2 and below horizontal feed roller 3-1, horizontal feed roller 3-1 passes through motor one
3-4 drives rotation, multiple spiral agitator 3-2 to drive rotation, the spiral shell of each spiral agitator 3-2 by two 3-5 of multiple motors
Rotation, which is stirred on leaf outer edge, is respectively and fixedly provided with multiple blade 3-3.Horizontal feed roller 3-1 is by organic waste in heaps on movable floor 2-1
Object, which is broken up, to be fallen into the discharge port of pretreatment pool 2, and spiral agitator 3-2 is by organic waste crushing, stirring.
One 4-3 of spiral propeller is equipped in the feed pipe 4-2 of the anaerobic fermentation tank 4, one 4-3's of the spiral propeller
Shaft is fixedly connected with the output shaft of three 4-4 of motor, and the feed pipe 4-2 is tapering point with 4 contact jaw of anaerobic fermentation tank.
Two 4-6 of spiral propeller, two 4-6 of the spiral propeller are installed in the discharge nozzle 4-5 of the anaerobic fermentation tank 4
Shaft be fixedly connected with the output shaft of four 4-15 of motor.
The quantity of the discharge nozzle 4-5 and feed pipe 4-2 of anaerobic fermentation tank 4 are two and 5 quantity of corresponding squeezer
It is two.
As shown in Figure 6, Figure 7, all pulling flow type agitating shafts 13 include stirring axis body 13-1 and multiple blade 13-
2；Folders of the multiple blade 13-2 between the axial helically fixed arrangements of stirring axis body 13-1, each adjacent two blade 13-2
Angle α is 15 °~90 °.Multiple blade 13-2 stir and push material in tank body 4-7 by rotating, and angle α need to be according to material concentration
It is adjusted.
As shown in Figure 8, Figure 9, the cow dung pond 11 is equipped with intake pool 11-1, intermediate pool 11-2 and discharge bay 11-3；It is described
Delivery pipe 10 is connected to intake pool 11-1, and the intermediate pool 11-2 is connected to intake pool 11-1 and discharge bay 11-3 respectively, described
Discharge bay 11-3 is connected to water drenching pipeline 12.
It is mounted on blender 14 on the intermediate pool 11-2 and discharge bay 11-3 in the cow dung pond 11 and biogas slurry pond 9.
As shown in Figure 11~Figure 16, anaerobic fermentation tank 4 includes including tank body 4-7, the tank body 4-7：Tank courage 4-7-1 and more
A ribs 4-7-2, the tank courage 4-7-1 are steel sealed horizontal hollow cylinder, tank courage 4-7-1 upper edge tank courage 4-7-1 axis
To multiple ribs 4-7-2 are arranged with, the lower ends the multiple ribs 4-7-2 are each attached on ground 15；
When the quantity of pulling flow type agitating shaft 13 is one, one pulling flow type agitating shaft 13 is horizontally set on tank body 4-
At 7 centers, 13 both ends of pulling flow type agitating shaft are with tank body 4-7 rotations and airtight connection, and the setting of decelerating motor 16 is outside tank body 4-7
Side is simultaneously sequentially connected with pulling flow type agitating shaft 13；
When 13 quantity of pulling flow type agitating shaft is two, described two pulling flow type agitating shafts 13 are co-axially located at tank body 4-7
At center, two abutting ends of described two pulling flow type agitating shafts 13 are respectively connected by sliding bearing 13-6-1 and centre frame 13-6
Connect, the centre frame 13-6 is fixedly connected with tank body 4-7 inner peripheral surfaces, two phase backsides of two pulling flow type agitating shafts 13 with
Tank body 4-7 rotation and airtight connection, two decelerating motors 16 be arranged on the outside of tank body 4-7 and respectively with corresponding pulling flow type
Agitating shaft 13 is sequentially connected.
The tank courage 4-7-1 is spliced after curving annular shape by multistage steel plate, equal per adjacent two sections of circular steel plates
By ribs 4-7-2 support connections.
When 13 quantity of pulling flow type agitating shaft is one, 13 both ends of pulling flow type agitating shaft are both provided with spindle nose 13-5,
Support and closed hollow shaft 13-3；
It is mounted on seal assembly 4-8 in the central through hole that the both ends the tank body 4-7 are equipped with, prevents biogas slurry in tank body 4-7
With the leakage of gas；
Described two spindle nose 13-5 sequentially pass through corresponding seal assembly 4-8 and corresponding bearing support assemblies 4-9 simultaneously
It is fixedly connected with the ball bearing 4-9-1 of bearing support assemblies 4-9, in 16 output shaft of the decelerating motor and two spindle nose 13-5
One of spindle nose 13-5 be fixedly connected；
When the quantity of pulling flow type agitating shaft 13 is two, each described 13 one end of pulling flow type agitating shaft is both provided with spindle nose
13-5, support and closed hollow shaft 13-3；
It is mounted on seal assembly 4-8 in the central through hole that the both ends the tank body 4-7 are equipped with, prevents biogas slurry in tank body 4-7
With the leakage of gas；
The spindle nose 13-5 of described two pulling flow type agitating shafts 13 sequentially passes through corresponding seal assembly 4-8 and corresponding axis
It holds support component 4-9 and is fixedly connected with the ball bearing 4-9-1 of bearing support assemblies 4-9, described two decelerating motors 16 are defeated
Shaft is corresponded and is fixedly connected with the spindle nose 13-5 of two pulling flow type agitating shafts 13, described two pulling flow type agitating shafts 13
Two abutting ends are connect with the sliding bearing 13-6-1 of the centre frame 13-6.
The horizontal continuous anaerobic fermentation tank of steel further includes two holders 17, and described two holders 17 are separately positioned on tank
It is fixedly connected at the both ends body 4-7 and with ground 15,
Described two bearing support assemblies 4-9 are respectively fixedly mounted on two holders 17 or are fixedly mounted on ground
On base 15, one either two decelerating motors 16 are mounted on corresponding holder 17 or on ground 15.
One or two decelerating motors 16 are mounted on by speed reducer toggle 16-1 on pulling flow type agitating shaft 13
On corresponding spindle nose 13-5.
The tank body 4-7 further includes feed pipe 4-2, discharge nozzle 4-5, biogas output pipe 4-1, observation window 4-10, manhole 4-
11, lower access hole 4-12, pressure sensor 4-13 and temperature sensor 4-14；
Feed pipe 4-2, discharge nozzle 4-5 and lower access hole 4-12 are offered on the tank body 4-7, are pacified on the tank body 4-7
Equipped with observation window 4-10 and manhole 4-11；
The pressure sensor 4-13 and temperature sensor 4-14 is installed on tank body 4-7 and connects with the inner cavities tank body 4-7
It is logical,
It is communicated with positive/negative pressure protector 18 between the biogas output pipe 4-1 and tank body 4-7,
The pressure sensor 1-8, the external automatic control system of temperature sensor 1-9 connections ensure anaerobism hair in tank
Ferment condition.
The horizontal continuous anaerobic fermentation tank of steel further includes heating tube 19, workbench 20, insulating layer and external protection；
The tank body 4-7 lateral surfaces upper end is provided with workbench 20, for operating personnel's operational maintenance and repair, tank body 4-7
Lateral surface lower end is provided with heating tube 19,
The insulating layer is that compound insulating material is covered on tank body 4-7 and heating tube 19,
The external protection completely cuts off the loss of temperature in tank on being wrapped on the outside of insulating layer.
The stirring axis body 13-1 of one or two pulling flow type agitating shafts 13 is made of multistage hollow shaft 13-3,
The junctions adjacent two sections of hollow shaft 13-3 are provided with a pair of of connecting flange 13-4, each connecting flange 13-4
On be placed with location hole 13-7,
It is both provided with seal groove 13-8 and sealing joint strip 13-9 on the contact surface of each connecting flange 13-4, it is each described close
Seal strip 13-9 is arranged in corresponding a pair of of seal groove 13-8, and each pair of connecting flange 13-4 is fastened by connection bolt 13-10
Airtight connection afterwards ensures that 13 inside of pulling flow type agitating shaft is closed hollow, and buoyancy offsets dead weight under biogas slurry is impregnated in tank body 4-7.
The spindle nose 13-5 is welded on both ends after the 13-3 combination connections of multistage hollow shaft；
The multiple blade 13-2 is welded or by Boards wall on hollow shaft 13-3,
One or two pulling flow type agitating shafts 13 further include air inflation nozzle 13-11 and pressure gauge 13-12, the inflation
Mouth 13-11 and pressure gauge 13-12 are installed on spindle nose 13-5, the closed situation of monitoring hollow shaft 13-3.
The centre frame 13-6 includes sliding bearing 13-6-1 and multiple connecting rod 13-6-2, the multiple connecting rod 13-
The one end 6-2 is fixedly connected with sliding bearing 13-6-1 lateral surfaces, multiple connecting rod 13-6-2 other ends with tank body 4-7 inner circles
Circumferential surface is fixedly connected.
Axis annular uniformly arrangements of multiple connecting rod 13-6-2 around sliding bearing 13-6-1.
Bearing support assemblies 4-9 includes that ball bearing 4-9-1 and supporting rack 4-9-2, the ball bearing 4-9-1 fix peace
On supporting rack 4-9-2, support frame as described above 4-9-2 is fixedly mounted on corresponding holder 17 or is fixedly mounted on ground 15
On.
A kind of horizontal plug-flow anaerobic dry fermentation technique of organic waste, includes the following steps：
One, organic waste is delivered to stack retting in pretreatment pool 2 by the conveyer belt 1, while water drenching pipeline 12 is by ox
In biogas slurry and cow dung water spray to pretreatment pool 2 in manure pit 11；
Two, organic waste makes material be warming up to 60 DEG C or more by 25~7 days stack rettings of pretreatment pool.Pretreatment pool 2
Effect：First, by organic waste hydrolysis, acidification, it is monosaccharide by organic waste degrading, is more advantageous to anaerobic fermentation, anaerobism
The breeding of bacterium；Second is that obtaining higher temperature by stack retting.
Three, three groups of movable floor 2-1 are moved to the discharge port of pretreatment pool 2 under the action of oil cylinder 2-3 simultaneously, due to
The effect of movable floor 2-1 frictional force drives the organic waste on movable floor 2-1 to be moved to discharge port, and feeder 3 is to having
Machine waste is continuously stirred, and after the completion of three groups of movable floor 2-1 conveying organic wastes, every group of movable floor 2-1 is in oil
After returning to initial position successively under the action of cylinder 2-3, movement next time is carried out；Every group of movable floor 2-1 is individually recycled, organic
The frictional force that waste is subject to is small, can avoid driving organic waste movement when movable floor 2-1 pictures return is dynamic.
Four, feeder 3 continuously stirs organic waste, the spiral propeller one in the feed pipe 4-2 of anaerobic fermentation tank 4
4-3 continuously pushes to organic waste in anaerobic fermentation tank 4；The blade 3-3 of feeder 3 when rotated stirs organic waste
It is broken.
Five, organic waste anaerobic fermentation tank 4 in fermentation of the dry substance concentration 30%~60%；
Six, the biogas that organic waste ferments in anaerobic fermentation tank 4 is exported through biogas output pipe 4-1 to external appendix
Line；
Seven, it is pushed away by spiral through discharge port of the organic waste through anaerobic fermentation tank 4 of anaerobic fermentation tank 4 after fermentation
It is delivered in squeezer 5 into two 4-6 of device；
Eight, the fermentate of organic waste is carried out separating dry space from moist space and isolates biogas residue and biogas slurry by squeezer 5, and biogas residue is through defeated
Band 26 is sent to convey outward, biogas slurry is sent into through water pump in biogas slurry pond 9；
Nine, accumulation has cow dung in the intake pool 11-1 in cow dung pond 11, the biogas slurry in biogas slurry pond 9 through the spray of delivery pipe 10 into
In the 11-1 of pond；Cow dung flows into after dilution in intermediate pool 11-2, and the blender 14 of intermediate pool 11-2 stirs cow dung water, by ox
Excrement is detached with impurity such as stones, and after intermediate pool 11-2 sediments, cow dung water is by being arranged in intermediate pool 11-2 and discharge bay 11-3
Between communication port 11-4 flow into discharge bay 11-3, communication port 11-4 is arranged in the middle and lower part of intermediate pool 11-2, discharge bay 11-
3 blender 14, which stirs operation, prevents cow dung from precipitating, and water drenching pipeline 12 is by the water spray in discharge bay 11-3 to pretreatment pool 2
It is interior, realize recycling for biogas slurry.
Water drenching pipeline 12 is built-in with water pump two.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of horizontal plug-flow anaerobic dry fermentation apparatus of organic waste, it is characterised in that：Including conveyer belt one (1), pretreatment
Pond (2), feeder (3), anaerobic fermentation tank (4), squeezer (5), conveyer belt two (6), biogas slurry conduit (7), biogas slurry pond (9), defeated
Send pipe (10), cow dung pond (11), water drenching pipeline (12) and pulling flow type agitating shaft (13)；The conveyer belt one (1) is by organic waste
Object is delivered to pretreatment pool (2) interior stack retting, and the feed end and discharge end of the pretreatment tank (2) are equipped with water drenching pipeline (12),
The discharge end of pretreatment pool (2) is equipped with feeder (3), the feeder (3) be connected to the feed inlet of anaerobic fermentation tank (4) and incite somebody to action
Organic waste conveys anaerobic fermentation tank (4) and ferments, and biogas output pipe (4-1) connection that the anaerobic fermentation tank (4) is equipped with is outer
It sets gas transmission line to export the biogas in anaerobic fermentation tank (4), the entrance of the discharge port and squeezer (5) of anaerobic fermentation tank (4)
Connection, the organic waste that squeezer (5) will ferment through anaerobic fermentation tank (4) carry out separating dry space from moist space, and the conveyer belt two (6) is set
Set the biogas residue that at squeezer (5) and conveying presser (5) solid outlet is discharged outward, described biogas slurry conduit (7) one end and pressure
The liquid outlet of crusher (5) is connected to, and biogas slurry conduit (7) other end is connected to biogas slurry pond (9), and the biogas slurry pond (9) passes through conveying
Biogas slurry is delivered in cow dung pond (11) by pipe (10), and cow dung pond (11) are connected to the entrance of water drenching pipeline (12), the anaerobism hair
Pulling flow type agitating shaft (13) is equipped in fermentation tank (4).
2. the horizontal plug-flow anaerobic dry fermentation apparatus of a kind of organic waste according to claim 1, it is characterised in that：It is described
The bottom plate of pretreatment pool (2) is that multiple movable floors (2-1) are close successively and be slidably matched and tile, multiple movable floors
(2-1) is arranged along pretreatment pool (2) length direction, and multiple movable floors (2-1) are divided into three groups, three groups of movable floor (2-
1) it is arranged alternately, is fixedly connected by connecting plate (2-2) between multiple movable floors (2-1) in every group, described three successively
Connecting plate (2-2) is arranged at the feed end of pretreatment pool (2), and three connecting plates (2-2) are respectively flexible with oil cylinder (2-3)
Bar outer end is fixedly connected, and the cylinder body of three oil cylinders (2-3) is fixedly connected with the chassis (2-4) that pretreatment pool (2) is equipped with.
3. the horizontal plug-flow anaerobic dry fermentation apparatus of a kind of organic waste according to claim 1, it is characterised in that：It is described
Feeder (3) includes horizontal feed roller (3-1), multiple spiral agitators (3-2) and multiple blades (3-3), the horizontal feed
The discharge outlet in pretreatment pool (2), the multiple spiral agitator (3- are arranged along pretreatment pool (2) width direction for roller (3-1)
2) it is vertically arranged in the discharge outlet of pretreatment pool (2) and positioned at horizontal feed roller (3-1) lower section, each spiral agitator
The spiral of (3-2), which is stirred on leaf outer edge, is respectively and fixedly provided with multiple blades (3-3).
4. the horizontal plug-flow anaerobic dry fermentation apparatus of a kind of organic waste according to claim 1, it is characterised in that：It is described
Spiral propeller one (4-3), the feed pipe (4-2) and anaerobic fermentation tank are equipped in the feed pipe (4-2) of anaerobic fermentation tank (4)
(4) contact jaw is tapering point.
5. the horizontal plug-flow anaerobic dry fermentation apparatus of a kind of organic waste according to claim 1, it is characterised in that：It is described
Spiral propeller two (4-6) is installed in the discharge nozzle (4-5) of anaerobic fermentation tank (4).
6. the horizontal plug-flow anaerobic dry fermentation apparatus of a kind of organic waste according to claim 1, it is characterised in that：It is described
Pulling flow type agitating shaft (13) includes stirring axis body (13-1) and multiple blades (13-2)；The multiple blade (13-2) is along agitating shaft
The axial helically fixed arrangement of body (13-1), the angle α between each adjacent two blade (13-2) is 15 °~90 °.
7. the horizontal plug-flow anaerobic dry fermentation apparatus of a kind of organic waste according to claim 1, it is characterised in that：It is described
Cow dung pond (11) is equipped with intake pool (11-1), intermediate pool (11-2) and discharge bay (11-3)；The delivery pipe (10) and intake pool
(11-1) is connected to, and the intermediate pool (11-2) is connected to intake pool (11-1) and discharge bay (11-3) respectively, the discharge bay
(11-3) is connected to water drenching pipeline (12).
8. the horizontal plug-flow anaerobic dry fermentation apparatus of a kind of organic waste according to claim 7, it is characterised in that：It is described
It is mounted on blender (14) on the intermediate pool (11-2) and discharge bay (11-3) in cow dung pond (11) and biogas slurry pond (9).
9. a kind of horizontal plug-flow anaerobic dry fermentation work of organic waste using described in any claim in claim 2 to 8
Skill, it is characterised in that：Include the following steps：
One, organic waste is delivered to pretreatment pool (2) interior stack retting by the conveyer belt one (1), while water drenching pipeline (12) will
In biogas slurry and cow dung water spray to pretreatment pool (2) in cow dung pond (11)；
Two, organic waste makes material be warming up to 60 DEG C or more by (2) 5~7 days stack rettings of pretreatment pool；
Three, three groups of movable floors (2-1) are moved under the action of oil cylinder (2-3) to the discharge port of pretreatment pool (2), feeder
(3) organic waste is continuously stirred, after the completion of three groups of movable floor (2-1) conveying organic wastes, every group actively
After plate (2-1) returns to initial position successively under the action of oil cylinder (2-3), movement next time is carried out；
Four, feeder (3) continuously stirs organic waste, the spiral propeller in the feed pipe (4-2) of anaerobic fermentation tank (4)
One (4-3) continuously pushes to organic waste in anaerobic fermentation tank (4)；
Five, organic waste anaerobic fermentation tank (4) in fermentation of the dry substance concentration 30%~60%；
Six, the biogas that organic waste ferments in anaerobic fermentation tank (4) is exported through biogas output pipe (4-1) to external appendix
Line；
Seven, it is delivered to squeezing through discharge port of the organic waste through anaerobic fermentation tank (4) of anaerobic fermentation tank (4) after fermentation
In machine (5)；
Eight, fermentate is carried out separating dry space from moist space and isolates biogas residue and biogas slurry by squeezer (5), and biogas residue is outside through conveyer belt two (6)
Conveying, biogas slurry are sent into through water pump in biogas slurry pond (9)；
Nine, accumulation has cow dung in the intake pool (11-1) of cow dung pond (11), and the biogas slurry in biogas slurry pond (9) is sprayed through delivery pipe (10)
In to intake pool (11-1)；Cow dung flows into after dilution in intermediate pool (11-2), after intermediate pool (11-2) sediment, cow dung water
It flows into discharge bay (11-3), water drenching pipeline (12) realizes natural pond by the water spray in discharge bay (11-3) to pretreatment pool (2)
Liquid recycles.
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| CN114507587A (en) * | 2022-03-29 | 2022-05-17 | 河南鸣皋智能科技有限公司 | Agricultural organic waste fermentation system and method |
| CN114507587B (en) * | 2022-03-29 | 2023-05-12 | 河南鸣皋智能科技有限公司 | Agricultural organic waste fermentation system and method |
| CN118638611A (en) * | 2024-08-16 | 2024-09-13 | 山东环保产业集团有限公司 | A dry anaerobic fermentation device |
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