CN105480654A - High-suspension straw fermentation, extrusion and discharging device and method - Google Patents
High-suspension straw fermentation, extrusion and discharging device and method Download PDFInfo
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- CN105480654A CN105480654A CN201510942611.2A CN201510942611A CN105480654A CN 105480654 A CN105480654 A CN 105480654A CN 201510942611 A CN201510942611 A CN 201510942611A CN 105480654 A CN105480654 A CN 105480654A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/26—Screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/24—Gas suction systems
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M1/00—Apparatus for enzymology or microbiology
- C12M1/107—Apparatus for enzymology or microbiology with means for collecting fermentation gases, e.g. methane
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Abstract
The invention discloses a high-suspension straw fermentation, extrusion and discharging device which comprises a fermentation box. A spiral extrusion device is installed in the fermentation box. A barrel of the spiral extrusion device is composed of an outer barrel body and an inner barrel body. A spiral conveyor is installed in the inner barrel body. The barrel is sequentially divided into a negative pressure suction section, a spiral conveying section and an extrusion and filtration section and a discharging hopper is arranged at the tail end of the barrel. A feeding port is formed in the portion, on the upper side of the negative pressure suction section, of the barrel, a suction port is formed in the portion, on the lower side of the negative pressure suction section, of the outer barrel body and connected with a pipeline pump, and a discharging pipe of the pipeline pump extends to the lower portion of the fermentation box. An annular baffle is arranged in the portion, at the intersection of the negative pressure suction section and the spiral conveying section, of the outer barrel body, strip-shaped holes are evenly distributed in the portions, of the extrusion and filtration section and the negative pressure suction section, of the wall of the inner barrel body and spirally distributed, and a fermentation liquid outlet is formed in the portion, on the spiral conveying section, of the lower side of the outer barrel body. A variable-pitch structure is adopted in the spiral conveyor, suspension straw can be removed, and stable and sustainable operation of a straw methane project is achieved.
Description
Technical field
The present invention relates to a kind of higher suspension stalk fermentation extruding and discharging device and method, belong to methane engineering technology field.
Background technology
In stalk fermentation biogas engineering traditional at present, fermentation technique is many because the stalk that the higher suspension characteristic of stalk has not digested after making fermentation is not got rid of by traditional overflow device, cause stalk waste residue in fermenting case sharply increase the gas production rate of extreme influence sweat and take a large amount of free spaces of casing, fermentation efficiency is reduced greatly.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of higher suspension stalk fermentation extruding and discharging device, by the suspension stalk removing in fermentation casing, fermentation gas amount can be improved, realize the stable of straw methane engineering and sustainable operation.The invention still further relates to higher suspension stalk fermentation extruding and discharging method.
To achieve these goals, technical scheme of the present invention is as follows: a kind of higher suspension stalk fermentation extruding and discharging device, comprise fermentation casing, it is characterized in that: in described fermentation casing, install helix extrusion device by feet, described helix extrusion device comprises the cylindrical shell tilting to install, and described cylindrical shell is made up of outer cylinder body and inner barrel, described outer cylinder body is enclosed within outside inner barrel, and there is gap between them, in inner barrel, conveyor screw is installed
Described cylindrical shell is divided into negative pressure suction casing, helical feed section and press filtration section successively, described cylindrical shell is inclined upwardly from negative pressure suction casing gradually to press filtration section, wherein, described negative pressure suction casing is positioned at the top of fermentation casing, it is external that press filtration section reaches fermenting case, and set out hopper at its end;
The upside of the cylindrical shell of described negative pressure suction casing is provided with inlet point, and the downside of the outer cylinder body of described negative-pressure adsorption section is provided with material sucking port, and described material sucking port is connected with the import of tubing pump by suction tube, and the discharge nozzle of described tubing pump reaches the bottom of fermentation casing;
Arrange ring baffle in gap between the outer cylinder body of described negative pressure suction casing and helical feed section intersection and inner barrel, this ring baffle is by the gaps between the outer cylinder body of negative pressure suction casing and helical feed section and inner barrel;
The wall of the inner barrel of described press filtration section and negative pressure suction casing is distributed with bar hole, all bar hole spirality distributions, and contrary with the hand of spiral of the helicallobe of conveyor screw, the downside of the outer cylinder body of described helical feed section is provided with fermentation liquor outlet near the position of ring baffle;
The pitch that described conveyor screw is positioned at the part of press filtration section is less than the pitch of the part being positioned at negative pressure suction casing and helical feed section.
Adopt such scheme, adsorbed by tubing pump, the suspension stalk on fermentation casing top is sucked in inner barrel, in negative-pressure adsorption section, fermentation liquor enters outer cylinder body by the bar hole of inner barrel, then get back in fermentation casing by tubing pump, hydraulic mixing is carried out to the material in fermentation casing, can mechanical agitation be saved like this.
In gap between the outer cylinder body of negative pressure suction casing and helical feed section intersection and inner barrel, ring baffle is set, negative pressure suction casing and helical feed section separate by this ring baffle, form negative pressure short circuit when tubing pump can be avoided like this to work, be conducive to the work of tubing pump.
Suspension stalk is carried through conveyor screw in inner barrel, finally enter press filtration section, in press filtration section, because the pitch of conveyor screw reduces, moisture in suspension stalk is by extruding stem to greatest extent, fermentation liquor through bar hole, then is got back in fermentation casing from fermentation liquor outlet, and suspension stalk is finally got rid of from discharge bucket.
Bar hole is designed to helix, and contrary with the hand of spiral of the helicallobe of conveyor screw, and namely bar hole is crossing with helicallobe, can enter in bar hole and blocked by bar hole by slag like this.
In such scheme: described outer cylinder body is equilateral polygon cylindrical shell.Be conducive to the eliminating of fermentation liquor.Integral design makes easily.
In such scheme: the inner barrel of described negative pressure suction casing is circular, and the inner barrel of described helical feed section and press filtration section is equilateral polygon.The inner barrel of preferred described helical feed section and press filtration section is octagon.Like this, in press filtration section, actv. adds the friction force of stalk and inner barrel inwall, avoids the idle running of the excessive rear stalk of squeeze pressure and inner barrel inwall.
In such scheme: the spiral the tip of the axis of described conveyor screw installs cutting blade, and described cutting blade is positioned at the top of discharge bucket.When screw shaft rotates, cutting blade rotates, and carries out stalk into a cutting, to recycle, as made fertilizer.
In such scheme: the gap≤0.5mm between the helicallobe of the conveyor screw in negative pressure suction casing and the inwall of inner barrel, the gap between the helicallobe of the conveyor screw in described helical feed section and press filtration section and the inwall of inner barrel is 3-4mm.The pitch that the pitch ratio that described conveyor screw is positioned at the part of press filtration section is positioned at the part of negative pressure suction casing and helical feed section is little by 15%.Gap≤0.5mm between the helicallobe of the conveyor screw in negative pressure suction casing and the inwall of inner barrel, can blow off the stalk be attached on inner core body wall to greatest extent, avoid blocking bar hole.Gap between the helicallobe of the conveyor screw in helical feed section and press filtration section and the inwall of inner barrel is 3-4mm, adds that pitch diminishes, is conducive to the extruding of stalk moisture.
In order to realize above-mentioned second object, technical scheme of the present invention is: a kind of higher suspension stalk fermentation extruding and discharging method, it is characterized in that: prepare higher suspension stalk fermentation extruding and discharging device according to any one of claim 1-7, in stalk fermentation process, open tubing pump, suspension stalk and the fermentation liquor on described fermentation casing top enter in inner barrel, at negative pressure suction casing, the bar hole of fermentation liquor on inner barrel is then through material sucking port, suction tube finally gets back to the bottom of fermentation casing, material in fermentation casing is stirred, suspension stalk is then transported to press filtration section through conveyor screw, discharge from discharge bucket after being here squeezed, the fermentation liquor that press filtration section squeezes out passes through bar hole, get back to after fermentation liquor outlet in fermentation casing.
Beneficial effect: structure of the present invention is simple, easy to use.According to test results, use this device in stalk fermentation biogas engineering after, obviously reduce the floating encrustation phenomena of unreacted stalk in fermenting case, extruding can be formed to waste material during discharging, fermentation liquor be continued flow back to fermenting case and ferment.Tubing pump can not only play and form the effect that inlet point sent into by stalk waste residue by negative pressure, more can realize the effect of hydraulic mixing, replace conventional mechanical type mix and blend, realize set of system two variety of applications, greatly reduce the construction cost of straw methane engineering.Install easily, simple to operate, user does not need professional technique, and simple training can grasp its operative technique, easy to maintenance, failure rate is low, good reliability, and safety is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is D place partial enlarged drawing in Fig. 1.
Fig. 3 is E place partial enlarged drawing in Fig. 1.
Fig. 4 is the local expansion figure of inner barrel.
Fig. 5 is A-A cutaway view in Fig. 1.
Fig. 6 is B-B cutaway view in Fig. 1.
Fig. 7 is the partial enlarged drawing at F place in Fig. 1.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment 1, as shown in figs. 1-7: higher suspension stalk fermentation extruding and discharging device of the present invention is made up of parts such as the casing 1 that ferments, inner barrel 2, outer cylinder body 3, conveyor screw 4, discharge bucket 5, inlet point 6, bar hole 7, material sucking port 8, suction tube 9, tubing pump 10, ring baffle 11, fermentation liquor outlet 12, cutting blades 13.
Fermentation casing 1 is prior art, does not repeat at this.
Conveyor screw 4 is made up of screw shaft and helicallobe, controls it rotate by motor and speed reducer.
In fermentation casing 1, by feet, helix extrusion device is installed, helix extrusion device comprises the cylindrical shell tilting to install, and cylindrical shell is made up of inner barrel 2 and outer cylinder body 3, and outer cylinder body 3 is enclosed within outside inner barrel 2, and have gap between them, conveyor screw 4 is arranged in inner barrel 2.Outer cylinder body 3 is equilateral polygon cylindrical shell, is preferably octagon.
Cylindrical shell is divided into negative pressure suction casing A, helical feed section B and press filtration section C by successively, cylindrical shell is inclined upwardly from negative pressure suction casing A gradually to press filtration section C, wherein, negative pressure suction casing A is positioned at the top of fermentation casing 1, press filtration section C reaches fermentation casing 1 from the upper end of fermentation casing 1, and sets out hopper 5 at the end of press filtration section C.The spiral the tip of the axis of conveyor screw 4 installs cutting blade 13, and cutting blade 13 is positioned at the top of discharge bucket 5.Stalk out through cutting after for making fertilizer.
The upside of the cylindrical shell of negative pressure suction casing A is provided with inlet point 6, and the downside of the outer cylinder body 3 of negative-pressure adsorption section A is provided with material sucking port 8, and the bore of inlet point 6 is greater than material sucking port 8.Material sucking port 8 is connected by the import of suction tube 9 with tubing pump 10, and the discharge nozzle of tubing pump 10 reaches the bottom of fermentation casing 1.
In gap between the outer cylinder body 3 of negative pressure suction casing A and helical feed section B intersection and inner barrel 2, ring baffle 11 is set, the outer cylinder body 3 of this ring baffle 11 by negative pressure suction casing A and helical feed section B and the gaps of inner barrel 2, be conducive to the suction of tubing pump 10 like this, avoid negative pressure short circuit.
The wall of the inner barrel 2 of press filtration section C and negative pressure suction casing A is distributed with bar hole 7 (the local expansion figure see the inner barrel of Fig. 4), all bar hole 7 spirality distributions, and it is contrary with the hand of spiral of the helicallobe of conveyor screw 4, when avoiding conveyor screw 4 to work, stalk slag is sent in bar hole, bar hole 7 is blocked, like this, fermentation liquor in negative pressure suction casing A enters in outer cylinder body 3 through bar hole 7, enter tubing pump 10 from material sucking port 7, return in fermentation casing 1.
The downside of the outer cylinder body 3 of helical feed section B is provided with fermentation liquor outlet 12 near the position of ring baffle 11.Fermentation liquor in press filtration section C enters in outer cylinder body 3 through bar hole 7, gets back in fermentation casing 1 from fermentation liquor outlet 12.The inner barrel 2 of negative pressure suction casing A is circular, and the inner barrel 2 of helical feed section B and press filtration section C is equilateral polygon.The inner barrel 2 of preferred helical feed section B and press filtration section C is octagon.Like this, increase the friction of stalk and inner barrel 2 inwall, avoid conveyor screw 4 to dally.
Gap≤0.5mm between the helicallobe of the conveyor screw 4 in negative pressure suction casing A and the inwall of inner barrel 2, can prevent inner barrel 2 bar hole from blocking by being attached to the inner core stalk scraping carried on 2 to greatest extent.
Gap between the helicallobe of the conveyor screw 4 in helical feed section B and press filtration section C and the inwall of inner barrel 2 is 3-4mm.The pitch that conveyor screw 4 is positioned at the part of press filtration section C is less than the pitch of the part being positioned at negative pressure suction casing A and helical feed section B.The pitch that the pitch ratio that preferred conveyor screw 4 is positioned at the part of press filtration section C is positioned at the part of negative pressure suction casing A and helical feed section B is little by 15%.Be conducive to the extruding of the moisture in stalk.
In stalk fermentation process, open tubing pump 10, suspension stalk and the fermentation liquor on fermentation casing 1 top enter in inner barrel 2, at negative pressure suction casing A, then the bar hole 7 of fermentation liquor on inner barrel 2 finally get back to the bottom of fermentation casing 1 through material sucking port 8, suction tube 9, material in fermentation casing 1 is stirred, suspension stalk is then transported to press filtration section C through conveyor screw 4, discharge from discharge bucket 5 after being here squeezed, the fermentation liquor that press filtration section C squeezes out is by getting back in fermentation casing 1 after bar hole 7, fermentation liquor outlet 12.
The present invention is not limited to above-mentioned specific embodiment, should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.In a word, all technical personnels in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (8)
1. a higher suspension stalk fermentation extruding and discharging device, comprise fermentation casing (1), it is characterized in that: in described fermentation casing (1), by feet, helix extrusion device is installed, described helix extrusion device comprises the cylindrical shell tilting to install, described cylindrical shell is made up of outer cylinder body (3) and inner barrel (2), described outer cylinder body (3) is enclosed within inner barrel (2) outward, and there is gap between them, in inner barrel (2), conveyor screw (4) is installed
Described cylindrical shell is divided into negative pressure suction casing (A), helical feed section (B) and press filtration section (C) successively, described cylindrical shell is inclined upwardly from negative pressure suction casing (A) gradually to press filtration section (c), wherein, described negative pressure suction casing (A) is positioned at the top of fermentation casing (1), press filtration section (c) reaches fermentation casing (1) outward, and sets out hopper (5) at its end;
The upside of the cylindrical shell of described negative pressure suction casing (A) is provided with inlet point (6), the downside of the outer cylinder body (3) of described negative-pressure adsorption section (A) is provided with material sucking port (8), described material sucking port (8) is connected by the import of suction tube (9) with tubing pump (10), and the discharge nozzle of described tubing pump (10) reaches the bottom of fermentation casing (1);
Arrange ring baffle (11) in gap between the outer cylinder body (3) of described negative pressure suction casing (A) and helical feed section (B) intersection and inner barrel (2), this ring baffle (11) is by the gaps between the outer cylinder body (3) of negative pressure suction casing (A) and helical feed section (B) and inner barrel (2);
The wall of the inner barrel (2) of described press filtration section (C) and negative pressure suction casing (A) is distributed with bar hole (7), all bar holes (7) spirality distributes, and contrary with the hand of spiral of the helicallobe of conveyor screw (4), the downside of the outer cylinder body (3) of described helical feed section (B) is provided with fermentation liquor outlet (12) near the position of ring baffle (11);
The pitch that described conveyor screw (4) is positioned at the part of press filtration section (C) is less than the pitch of the part being positioned at negative pressure suction casing (A) and helical feed section (B).
2. higher suspension stalk fermentation extruding and discharging device according to claim 1, is characterized in that: described outer cylinder body (3) is equilateral polygon cylindrical shell.
3. higher suspension stalk fermentation extruding and discharging device according to claim 2, it is characterized in that: the inner barrel (2) of described negative pressure suction casing (A) is for circular, and the inner barrel (2) of described helical feed section (B) and press filtration section (C) is equilateral polygon.
4. higher suspension stalk fermentation extruding and discharging device according to claim 3, is characterized in that: the inner barrel (2) of described helical feed section (B) and press filtration section (C) is octagon.
5. higher suspension stalk fermentation extruding and discharging device according to claim 1, it is characterized in that: the spiral the tip of the axis of described conveyor screw (4) installs cutting blade (13), and described cutting blade (13) is positioned at the top of discharge bucket (5).
6. higher suspension stalk fermentation extruding and discharging device according to claim 5, it is characterized in that: the gap≤0.5mm between the helicallobe of the conveyor screw (4) in negative pressure suction casing (A) and the inwall of inner barrel (2), the gap between the helicallobe of the conveyor screw (4) in described helical feed section (B) and press filtration section (C) and the inwall of inner barrel (2) is 3-4mm.
7. higher suspension stalk fermentation extruding and discharging device according to claim 1, is characterized in that: the pitch that the pitch ratio that described conveyor screw (4) is positioned at the part of press filtration section (C) is positioned at the part of negative pressure suction casing (A) and helical feed section (B) is little by 15%.
8. a higher suspension stalk fermentation extruding and discharging method, it is characterized in that: prepare higher suspension stalk fermentation extruding and discharging device according to any one of claim 1-7, in stalk fermentation process, open tubing pump (10), suspension stalk and the fermentation liquor on described fermentation casing (1) top enter in inner barrel (2), at negative pressure suction casing (A), the bar hole (7) of fermentation liquor on inner barrel (2) is then through material sucking port (8), suction tube (9) finally gets back to the bottom of fermentation casing (1), material in fermentation casing (1) is stirred, suspension stalk is then transported to press filtration section (C) through conveyor screw (4), discharge from discharge bucket (5) after being here squeezed, the fermentation liquor that press filtration section (C) squeezes out is by getting back in fermentation casing (1) after bar hole (7), fermentation liquor outlet (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510942611.2A CN105480654B (en) | 2015-12-14 | 2015-12-14 | Higher suspension stalk fermentation extruding and discharging device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510942611.2A CN105480654B (en) | 2015-12-14 | 2015-12-14 | Higher suspension stalk fermentation extruding and discharging device and method |
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| CN105480654A true CN105480654A (en) | 2016-04-13 |
| CN105480654B CN105480654B (en) | 2017-08-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109018879A (en) * | 2018-08-02 | 2018-12-18 | 深圳市南硕明泰科技有限公司 | A kind of multifunctional feed elevator |
| CN109019038A (en) * | 2018-08-26 | 2018-12-18 | 胡光远 | A kind of improved cement material conveying device |
| US20220346307A1 (en) * | 2021-04-28 | 2022-11-03 | Cnh Industrial America Llc | Product delivery conduit for an agricultural product hopper assembly |
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| US20010026783A1 (en) * | 1999-12-21 | 2001-10-04 | Winter John D. | Method for withdrawing and dewatering slag from a gasification system |
| KR20100135102A (en) * | 2009-06-16 | 2010-12-24 | 김영애 | Solid-liquid separator for food garbage |
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| US11839174B2 (en) * | 2021-04-28 | 2023-12-12 | Cnh Industrial America Llc | Product delivery conduit for an agricultural product hopper assembly |
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