CN103436434B - Crop straw pre-treatment reaction tank - Google Patents
Crop straw pre-treatment reaction tank Download PDFInfo
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- CN103436434B CN103436434B CN201310386886.3A CN201310386886A CN103436434B CN 103436434 B CN103436434 B CN 103436434B CN 201310386886 A CN201310386886 A CN 201310386886A CN 103436434 B CN103436434 B CN 103436434B
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- tank body
- stir shaft
- spiral stirrer
- upper cover
- crop straw
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Abstract
The invention discloses a crop straw pre-treatment reaction tank. The crop straw pre-treatment reaction tank comprises a tank body arranged in a jacket, wherein an upper sealing head and a lower sealing head are respectively arranged at the upper end and the lower end of the tank body, a material inlet, a material sampling hole and an air outlet are formed in the upper sealing head, an aeration pipe and a stirring and conveying device are arranged in the tank body, and a discharge pipe is arranged at the lower end of the tank body. The crop straw pre-treatment reaction tank can carry out aerobic, micro aerobic or anaerobic pre-treatment on crop straw, so that degradation of lignocellulose is promoted; meanwhile, materials in the crop straw pre-treatment reaction tank and biological metabolism heat are transferred into an anaerobic fermentation tank by virtue of a packing auger formed by combining a spiral stirrer with the discharge pipe, so that high-efficiency conversion of straw anaerobic fermentation is realized.
Description
Technical field
The present invention relates to a kind of agricultural straw resource use device, relate in particular to a kind of crop straw pre-treatment retort.
Background technology
China Shi Yige large agricultural country, annual agricultural crop straw output is approximately 700,000,000 tons.Due to technology and social cause, 30% of ultimate production that agricultural crop straw effective rate of utilization is not enough, most of agricultural crop straw is all deposited in to rot naturally in field or direct waste burning on the spot, not only causes serious environmental pollution, also causes the huge wasting of resources.Therefore, strengthen the comprehensive utilization to agricultural crop straw, to making up, china natural resources is not enough to be of great significance with promotion agricultural sustainable development tool.
Anaerobically fermenting is to process one of effective means of agricultural crop straw, by self metabolism and Conversion of energy of microorganism, and can be by low product energy conversion Cheng Gaopin energy biogas such as stalks.But the macromole polymer being formed by Mierocrystalline cellulose, hemicellulose, xylogen etc. due to stalk, and surface coverage has wax layer protection, and most of microbe cannot directly directly be utilized conversion by wood fibre.By pre-treatment, can remove the xylogen that is wrapped in cellulose surface, improve follow-up conversion reaction speed, prevent that the by product generating from affecting follow-up degraded and fermentation, destruction crystallizing field, the degraded polymerization degree and degree of crystallinity, thereby improve Mierocrystalline cellulose in the solvability of solvent.Therefore, must carry out pre-treatment to stalk, could improve straw utilization rate and factor of created gase, for follow-up biological utilisation provides basis.
At present, pretreatment process mainly contains Physical, chemical method and biological process, by these methods, can both improve straw anaerobic digestibility and factor of created gase, but also has a series of problem, respectively has its limitation.There is the problem that energy consumption is high in Physical, the effect of processing often drops into closely related with cost; Although chemical method is simple and convenient, treatment effect is better, and equipment is had to certain requirement, has contaminate environment in various degree simultaneously; Biological Pretreatment is considered from cost and equipment angle, occupy unique advantage, and can not bring environmental pollution, but pretreating effect is low, needs efficient bacteria agent.Following stalk pre-treatment direction should be towards high-level efficiency, low consumption, low pollution, future development cheaply.
Summary of the invention
The object of this invention is to provide a kind of crop straw pre-treatment retort, can carry out to agricultural crop straw the Biological Pretreatment of aerobic, micro-aerobic, anaerobism, possess and stir and transfer function, can realize and organically combining with anaerobic fermentation tank, have advantages of that the high and low consumption of easy to operate, pre-treatment efficiency is low-cost, non-environmental-pollution.
The present invention adopts following technical proposals:
A kind of crop straw pre-treatment retort, comprise the tank body being arranged in chuck, the upper and lower two ends of tank body are respectively arranged with upper cover and lower cover, on upper cover, be provided with feeding mouth, material thief hole and air outlet, in described tank body, be provided with oxygen-supplying tube and stirring conveying device, tank body lower end is provided with discharge nozzle.
Described stirring conveying device comprises that tank body central shaft is to the stir shaft arranging, stir shaft upper end connects motor through upper cover, stir shaft lower end is arranged in discharge nozzle by supporting seat, on stir shaft, be provided with disc turbine agitator and spiral stirrer, spiral stirrer and discharge nozzle coordinate formation auger transporting mechanism.
Described disc turbine agitator and spiral stirrer are arranged on stir shaft by disc turbine agitator one-way clutch and spiral stirrer one-way clutch respectively, and the locking opposite direction of disc turbine agitator one-way clutch and spiral stirrer one-way clutch.
Described spiral stirrer starts from stir shaft lower end 1/3rd to arrange.
In described tank body, be provided with heating unit and temperature measurer, heating unit comprises the heating coil being arranged in inner tank wall, and temperature measurer wiring mouth, heating coil water outlet and heating coil water inlet are arranged on upper cover.
In described tank body, be provided with spray equipment, spray equipment comprises the spray liquid water-in that is arranged on upper cover, and spray liquid water-in is communicated with the circular spray tube in being arranged on upper cover.
In described tank body, be provided with percolate reflux, percolate reflux comprises percolate suction pipe and is set in the screen on stir shaft in tank body, percolate suction pipe feed-water end is arranged in the lower cover of screen below, and percolate suction pipe water side is arranged on upper cover.
Described screen is most advanced and sophisticated cone surface screen down.
In described tank body, be provided with redox potential instrument and liquid level controller, on upper cover, be provided with redox potential instrument installing port.
The present invention can carry out aerobic, micro-aerobic or anaerobism pre-treatment to agricultural crop straw, promote the decomposition of lignocellulose, and coordinate by spiral stirrer and discharge nozzle the auger transporting mechanism forming, material in tank and biological metabolism heat are transported to anaerobic fermentation tank, have realized the Efficient Conversion of stalk anaerobic fermentation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, the present invention includes the tank body 2 being arranged in chuck 1, tank body is respectively arranged with upper cover 3 and lower cover 4 in two ends Shang Xia 2, on upper cover 3, be provided with feeding mouth 5, material thief hole 6 and air outlet 7, in tank body 2, be provided with oxygen-supplying tube 8, stirring conveying device, heating unit, temperature measurer 19, spray equipment, percolate reflux, redox potential instrument and liquid level controller, tank body 2 lower ends are provided with discharge nozzle 9.
Stirring conveying device comprises that tank body 2 central shafts are to the stir shaft 10 arranging, stir shaft 10 upper ends connect motor 12 through upper cover 3 by shaft coupling 11, stir shaft 10 adopts mechanical seal 13 with upper cover 3, stir shaft 10 lower ends are arranged in discharge nozzle 9 by supporting seat 14, are provided with disc turbine agitator 15 and spiral stirrer 16 on stir shaft 10; Disc turbine agitator 15 and spiral stirrer 16 are arranged on stir shaft 10 by disc turbine agitator one-way clutch 17 and spiral stirrer one-way clutch 18 respectively, and the locking opposite direction of disc turbine agitator one-way clutch 17 and spiral stirrer one-way clutch 18.Disc turbine agitator 15 can play agitating function; Spiral stirrer 16 and discharge nozzle 9 coordinate formation auger transporting mechanism, can play the function of convey materials.In the present embodiment, be provided with two disc turbine agitators 15, spiral stirrer 16 starts from stir shaft 10 lower ends 1/3rd to arrange, and a part of spiral stirrer 16 is positioned at discharge nozzle 9.
The heating unit of tank body 2 interior settings and temperature measurer 19 can make the constant temperature of reaction of the interior maintenance of tank body 2 under electric control gear is controlled.Heating unit comprises the heating coil 20 being arranged on tank body 2 inwalls, and temperature measurer wiring mouth 21, heating coil water outlet 22 and heating coil water inlet 23 are arranged on upper cover 3.
Spray equipment comprises the spray liquid water-in 31 that is arranged on upper cover 3, and spray liquid water-in 31 is communicated with the circular spray tube 24 in being arranged on upper cover 3.User can utilize external water source by spray equipment, material in tank to be sprayed.The present invention is also provided with the percolate reflux that can be used in conjunction with spray equipment, percolate reflux comprises percolate suction pipe 25 and is set in the screen 26 on the interior stir shaft 10 of tank body 2, percolate suction pipe feed-water end 27 is arranged in the lower cover 4 of screen 26 belows, and percolate suction pipe water side 28 is arranged on upper cover 3.Screen 26 can adopt most advanced and sophisticated cone surface screen down, guarantee that in tank, the percolate in material can flow in lower cover 4 smoothly, percolate suction pipe 25 can be delivered to the percolate in lower cover 4 in circular spray tube 24 under feed pump coordinates, and material in tank is sprayed.
In tank body 2, be provided with redox potential instrument and liquid level controller, on upper cover 3, be provided with redox potential instrument installing port 29.Redox potential instrument is for the redox condition in automatic regulating tank, and liquid level controller can be monitored percolate liquid level in tank, when percolate liquid level is during lower than set(ting)value, utilizes external water source to supplement spray supply water by spray equipment.
During use, staff arranges agricultural crop straw feeding mouth 5 from tank body 2 is put into tank body 2, carries out the pre-treatment of agricultural crop straw.Heating unit and temperature measurer 19, redox potential instrument can guarantee in tank that material is all the time in optimal reaction temperature and redox condition.Liquid level controller cooperation spray equipment can be realized material in tank is regularly sprayed, the percolate that spray water can be used external water source or be collected by percolate reflux.
Disc turbine agitator 15 and spiral stirrer 16 are arranged on stir shaft 10 by disc turbine agitator one-way clutch 17 and spiral stirrer one-way clutch 18 respectively, and the locking opposite direction of disc turbine agitator one-way clutch 17 and spiral stirrer one-way clutch 18.When motor 12 is worked clockwise, disc turbine agitator 15 and stir shaft 10 combinations, spiral stirrer 16 is separated with stir shaft 10, and 10 of stir shafts drive disc turbine agitators 15 to rotate, and realize the function of stirring; When motor 12 is worked counterclockwise, spiral stirrer 16 and stir shaft 10 combinations, disc turbine agitator 15 is separated with stir shaft 10,16 work of 10 drive spiral stirrers of stir shaft, coordinate with discharge nozzle 9 and form auger transporting mechanism, realize the function of material transferring.When spiral stirrer 16 work, only transmit the material of middle and lower part in tank.Staff can control motor 12 turning directions according to the actual requirements, realizes the stirring of material or transmission.
For the ease of installing, on the outer wall of chuck 1, be along the circumferential direction evenly provided with four hanging supports 30.
In the present invention, oxygen-supplying tube 8, disc turbine agitator 15, spiral stirrer 16, heating coil 20, temperature measurer 19, spray equipment, percolate reflux, redox potential instrument and liquid level controller all belong to ripe prior art, do not repeat them here.
The present invention can carry out aerobic, micro-aerobic or anaerobism pre-treatment to agricultural crop straw, promote the decomposition of lignocellulose, and coordinate by spiral stirrer 16 and discharge nozzle 9 the auger transporting mechanism forming, material in tank and biological metabolism heat are transported to anaerobic fermentation tank, have realized the Efficient Conversion of stalk anaerobic fermentation; Percolate can also be reclaimed to spray, reduce environmental pollution, improve material and produce the gas producing efficiency in process of methane in anaerobic digestion simultaneously.
Claims (3)
1. a crop straw pre-treatment retort, comprise the tank body being arranged in chuck, the upper and lower two ends of tank body are respectively arranged with upper cover and lower cover, on upper cover, be provided with feeding mouth, material thief hole and air outlet, it is characterized in that: in described tank body, be provided with oxygen-supplying tube and stirring conveying device, tank body lower end is provided with discharge nozzle; Described stirring conveying device comprises that tank body central shaft is to the stir shaft arranging, stir shaft upper end connects motor through upper cover, stir shaft lower end is arranged in discharge nozzle by supporting seat, on stir shaft, be provided with disc turbine agitator and spiral stirrer, spiral stirrer and discharge nozzle coordinate formation auger transporting mechanism; Described disc turbine agitator and spiral stirrer are arranged on stir shaft by disc turbine agitator one-way clutch and spiral stirrer one-way clutch respectively, and the locking opposite direction of disc turbine agitator one-way clutch and spiral stirrer one-way clutch; Wherein said spiral stirrer starts from stir shaft lower end 1/3rd to arrange; In wherein said tank body, be provided with heating unit and temperature measurer, heating unit comprises the heating coil being arranged in inner tank wall, and temperature measurer wiring mouth, heating coil water outlet and heating coil water inlet are arranged on upper cover; In wherein said tank body, be provided with percolate reflux, percolate reflux comprises percolate suction pipe and is set in the screen on stir shaft in tank body, percolate suction pipe feed-water end is arranged in the lower cover of screen below, and percolate suction pipe water side is arranged on upper cover; Wherein said screen is most advanced and sophisticated cone surface screen down; When motor is worked clockwise, disc turbine agitator is combined with stir shaft, and spiral stirrer is separated with stir shaft, and stir shaft only drives disc turbine agitator to rotate, and realizes the function stirring; When motor is worked counterclockwise, spiral stirrer and stir shaft combination, disc turbine agitator is separated with stir shaft, and stir shaft only drives spiral stirrer work, coordinates form auger transporting mechanism with discharge nozzle, realizes material transferring.
2. crop straw pre-treatment retort according to claim 1, it is characterized in that: in described tank body, be provided with spray equipment, spray equipment comprises the spray liquid water-in that is arranged on upper cover, and spray liquid water-in is communicated with the circular spray tube in being arranged on upper cover.
3. crop straw pre-treatment retort according to claim 2, is characterized in that: in described tank body, be provided with redox potential instrument and liquid level controller, be provided with redox potential instrument installing port on upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310386886.3A CN103436434B (en) | 2013-08-30 | 2013-08-30 | Crop straw pre-treatment reaction tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310386886.3A CN103436434B (en) | 2013-08-30 | 2013-08-30 | Crop straw pre-treatment reaction tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103436434A CN103436434A (en) | 2013-12-11 |
| CN103436434B true CN103436434B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310386886.3A Expired - Fee Related CN103436434B (en) | 2013-08-30 | 2013-08-30 | Crop straw pre-treatment reaction tank |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893959B (en) * | 2015-05-08 | 2018-03-06 | 张家港市天源机械制造有限公司 | Heat exchange agitating device in marsh-gas fermentation tank |
| CN104928154A (en) * | 2015-06-14 | 2015-09-23 | 农业部沼气科学研究所 | High-concentration material biogas fermentation tank discharging device |
| CN106186622A (en) * | 2016-08-26 | 2016-12-07 | 尹小军 | A kind of pig farm biogas generator |
| CN109423446A (en) * | 2017-08-24 | 2019-03-05 | 吴鹃 | A kind of crop straw pre-treatment reactor tank |
| CN111849715B (en) * | 2020-07-31 | 2021-03-12 | 山东润德生物科技有限公司 | Biological fermentation tank |
| CN112795477A (en) * | 2021-01-21 | 2021-05-14 | 李月月 | High-efficiency anaerobic bioreactor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3545938A (en) * | 1962-08-16 | 1970-12-08 | Eastman Kodak Co | Apparatus for producing and processing viscous materials |
| DE2211975B2 (en) * | 1972-03-13 | 1980-04-17 | Fa. Eugen Peter, 7307 Aichwald | Reservoir with agitator - for extraction of must and juices |
| CN201458111U (en) * | 2009-08-17 | 2010-05-12 | 河南奔马股份有限公司 | Biogas raw material transport storage stirring device |
| CN202157072U (en) * | 2011-08-15 | 2012-03-07 | 黑龙江省农业科学院农村能源研究所 | Device for producing methane by fermentation |
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2013
- 2013-08-30 CN CN201310386886.3A patent/CN103436434B/en not_active Expired - Fee Related
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| CN103436434A (en) | 2013-12-11 |
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