CN202551689U - Combine harvester integrating grain harvesting and straw carbonization returning - Google Patents

Combine harvester integrating grain harvesting and straw carbonization returning Download PDF

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Publication number
CN202551689U
CN202551689U CN201220195663XU CN201220195663U CN202551689U CN 202551689 U CN202551689 U CN 202551689U CN 201220195663X U CN201220195663X U CN 201220195663XU CN 201220195663 U CN201220195663 U CN 201220195663U CN 202551689 U CN202551689 U CN 202551689U
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China
Prior art keywords
chamber
drying oven
carbonization
feed pipe
combustion chamber
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Withdrawn - After Issue
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CN201220195663XU
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Chinese (zh)
Inventor
吴伟祥
潘逸凡
周旻旻
董达
邓辉
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Zhejiang University ZJU
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Zhejiang University ZJU
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel

Abstract

The utility model discloses a combine harvester integrating grain harvesting and straw carbonization returning. The combine harvester comprises a grain harvesting threshing and straw cutting device and a straw carbonization and smoke purification device, wherein the grain harvesting threshing and straw cutting device comprises header, a feeding pipe and a grain bin; and the straw carbonization and smoke purification device comprises a rotary drying furnace, a gas purification chamber, a conveying pipe, a chimney, a feeding pipe, a draught fan and a carbonization chamber. The combine harvester is high in charcoal producing efficiency, and can simultaneously complete grain harvesting and straw carbonization returning, so that the conveying cost is reduced.

Description

A kind of rice wheat harvest is cut and the straw charring incorporate combine in field also
Technical field
The utility model belongs to technical field of new energy application, relates to a kind of rice wheat harvest and cuts and the straw charring incorporate combine in field also.
Background technology
For the feedstock production biomass carbon is one of biomass energy cleaning trans-utilization technical research focus, has wide development space with the agriculture and forestry organic waste material.
At present, total annual production of all kinds of crops straws of China can reach 700,000,000 tons, but its availability is extremely low, and about 100,000,000 tons of stalks directly burn in the field, have caused the serious atmospheric pollution and the wasting of resources.On the other hand, paddy ecosystem is the main emission source of greenhouse gases, so its emission control research is the focus of domestic and international this area research always.Although the discharging that reduces the rice field greenhouse gases is absorbed in a series of researchs in recent years, its discharge capacity is still huge.
Be the abundant stalk resource of clean utilization, country widelys popularize the straw-returning technology.Straw directly returning to field can effectively improve soil organic matter content to a certain extent; Improve soil structure; Reach the preserve moisture and fertility purpose, but also exist photosynthetic organic carbon degraded mineralising rapid simultaneously, soil organic matter content promotes limited; The C/N ratio imbalance, soil productivity is improved a series of problems such as not obvious and the surge of greenhouse gases discharge of methane amount.The straw biomass charcoal is the one type of height aromatization infusibility material that under the situation of anoxic wholly or in part, is produced through 300 ℃ of-600 ℃ of pyrolysis by plant straw biological matter.In recent years, many tests have confirmed that biomass carbon can regulate soil pH, strengthen the soil water-retaining performance, improve degree of base saturation, porosity and the air capacity of soils of soil, promote the formation of soil aggregate; On the other hand; Because the special pore structure of biomass carbon makes it have huge specific surface area and high surface negative charge and charge density; Thereby the nutrient material that exists with the exchangeable species form in the soil had stronger adsorption capacity; Can effectively prevent the soil nutrient leaching loss, protect fertile soil moisture conservation.Integral body is improved the soil water, fertilizer, gas, hot many-sided physicochemical property.In addition, though biomass carbon is not also come to a conclusion to the influence of plant growing at present, the output that applies cereal crops such as can significantly improving corn, paddy rice of existing research proof biomass carbon.Therefore, the straw biomass charcoal transforms and uses as a kind of agricultural and increases the approval that remittance emission-reduction technology approach has obtained each side.
Present biomass carbonated technology was ripe already; Prior art can provide the biomass carbon of the different qualities of fast pyrogenation; But carbonizing apparatus is fixation means; From collect former expect product also the freight that causes of field increased the charcoal processing cost greatly, and then caused also field situation about can't extensively popularize of present straw charring.The prior art that possesses simultaneously also comprises the integrated grain header of straw-returning, but between all drawbacks that above-mentioned straw-returning exists, is badly in need of a kind of novel device and substitutes.
Summary of the invention
The purpose of the utility model is to provide a kind of rice wheat harvest to cut and the straw charring incorporate combine in field also; The stalk fast charring that can harvesting be separated is the field also; And with high-temperature flue gas through becoming the fuel gas of cleaning after purifying, filtering; Gas fuel burning heat and high-temperature flue gas waste heat are supplied with fresh straw oven dry, exhaust emissions compliance with environmental protection requirements.
The technical scheme that the utility model technical solution problem is taked is:
A kind of rice wheat harvest is cut and the straw charring incorporate combine in field also, comprises that the rice wheat harvest cuts threshing and stalk cutter sweep, straw charring and smoke eliminator; Threshing is cut in described rice wheat harvest and the stalk cutter sweep is made up of header, feed pipe, grain storehouse, and straw charring and smoke eliminator are made up of revolution drying oven, chamber cleaning gas, appendix, chimney, feed pipe, air-introduced machine and carbonization chamber.
One side of revolution drying oven is connected with feed pipe; The opposite side of revolution drying oven is connected with feed pipe; Described feed pipe fork is divided into two branch roads and gets into carbonization chamber, and time switch and baffle plate are controlled the branch road of oven dry stalk transportation jointly, makes storeroom at a distance from being delivered to two carbonization chambers.
There are three hollow flabellums revolution drying oven inside; The revolution drying oven links to each other with appendix away from an end of feed pipe; Hollow flabellum in the revolution drying oven can lead to high temperature hot gas, turns round simultaneously in order to the heating, drying stalk, and the revolution drying oven links to each other with chimney near an end of feed pipe.
Two-layer inside and outside carbonization chamber is divided into, inside is the combustion chamber, and stalk is directly burnt, and the outer ring is the charing zone; Be provided with many blast pipes at carbonization chamber, an end of blast pipe is in communication with the outside, and the other end of blast pipe feeds the charing zone, is furnished with air nozzle on the every blast pipe; Also be provided with a combustion chamber induced duct at carbonization chamber, induced duct one end in combustion chamber is in communication with the outside, and the other end of combustion chamber induced duct feeds the combustion chamber.
The vortex fan is set under the combustion chamber; Many tremie pipes are equipped with in the bottom of carbonization chamber, and every tremie pipe end is the sharp fluted body edge of a knife, in the grain header running, can plough out groove on the face of land; Biomass carbon is evenly applied in the groove, and many tremie pipes constitute returning device.
On the charing locular wall, be provided with the igniting ventilating opening, the igniting ventilating opening can be closed by plate; High temperature hot gas in the carbonization chamber is through air-introduced machine suction chamber cleaning gas, and chamber cleaning gas comprises metal baffle, metallic filter, activated carbon layer, explosion-proof air-introduced machine, exhaust duct, combustion chamber and tar collecting pit; Chamber cleaning gas links to each other with the revolution drying oven through appendix.
The beneficial effect of the utility model:
1. adopt this device charcoal processing efficient high, can accomplish the rice wheat harvest simultaneously and cut and the charing of stalk field also, practice thrift cost of transportation.
2. reach the heat energy circulation, carbonization chamber, straw charring and smoke eliminator make full use of self heat energy, do not need external energy basically.
3. flue gas purification system is set, the high-temperature combustible gas body is become clean combustible gas after purifying, filtering, exhaust emissions is fit to environmental requirement.
4. alleviate the environmental pressure of rice field greenhouse gas emission, rationally utilize the agricultural stalk waste material, obvious environment benefit.
Description of drawings
Fig. 1 a is a side structure sketch map of the utility model;
Fig. 1 b is the opposite side structural representation of the utility model;
Fig. 2 is the structure enlarged diagram of feed pipe.
Fig. 3 a is a revolution structure of Stove enlarged diagram.
Fig. 3 b is a revolution structure of Stove cross-sectional schematic.
Fig. 4 a is the structure enlarged diagram of carbonization chamber.
Fig. 4 b is the structure cross-sectional schematic of carbonization chamber.
Fig. 5 is the structure enlarged diagram of chamber cleaning gas.
Among the figure: 1, header; 2, oil-burning machine; 3, driver's cabin; 4, engine; 5, feed pipe; 6, chamber cleaning gas; 7, appendix; 8, chimney; 9, revolution drying oven; 10, feed pipe; 11, air-introduced machine; 12, carbonization chamber; 13, tremie pipe; 14, grain storehouse; 502, driven cylinder; 503, transport tape; 504, guide plate; 505, hold-down roll; 506, chopper; 507, threshing bin warehouse; 508, threshing bin; 509, threshing cylinder; 510, drive roll; 901, time switch; 902, baffle plate; 906, hollow flabellum; 907, thermal wall; 1201, combustion chamber induced duct; 1202, igniting ventilating opening; 1203, plate; 1204, protective cover; 1205, direct combustion chamber; 1206, blast pipe; 1207, vortex fan; 13, tremie pipe; 602, metal baffle; 603, metallic filter; 604, activated carbon layer; 605, explosion-proof air-introduced machine; 606, exhaust duct; 607, combustion chamber; 608, tar collecting pit.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
With reference to Fig. 1 a~Fig. 1 b, the utility model comprises that the rice wheat harvest cuts threshing and stalk cutter sweep, straw charring and smoke eliminator; Threshing is cut in described rice wheat harvest and the stalk cutter sweep is made up of header 1, feed pipe 5, grain storehouse 14, and straw charring and smoke eliminator are made up of revolution drying oven 9, chamber cleaning gas 6, appendix 7, chimney 8, feed pipe 10, air-introduced machine 11 and carbonization chamber 12.This device provides the energy by oil-burning machine 2, engine 4 and drives, and driver's cabin 3 supplies pilot steering.
With reference to Fig. 2, threshing is cut in the rice wheat harvest and the stalk cutter sweep is made up of header 1, driven cylinder 502, transport tape 503, guide plate 504, hold-down roll 505, chopper 506, threshing bin warehouse 507, threshing bin 508, threshing cylinder 509, drive roll 510 and grain storehouse 14.The rice wheat gets into feed pipe 5 by header 1 harvesting back; Through the upwards transmission of colloid conveyer belt; And get between hold-down roll 505 and the drive roll 510 along the direction of guide plate 504 and to compress, the chopper chopping that is had gear to promote subsequently to slide from top to bottom gets into threshing bin 508.In threshing bin 508, grain separates with stalk, and grain sees through screen cloth and gets into grain storehouse 510 under the effect of threshing cylinder 509.
Straw charring and smoke eliminator are made up of revolution drying oven 9, chamber cleaning gas 6, appendix 7, chimney 8, feed pipe 10, air-introduced machine 11 and carbonization chamber 12.Get into revolution drying oven 9 with the stalk after the grain separation cuts.
With reference to Fig. 3 a; One side of revolution drying oven 9 is connected with feed pipe 5; The opposite side of revolution drying oven 9 is connected with feed pipe 10; Described feed pipe 10 forks are divided into two branch roads and get into carbonization chamber 12, and time switch 901 and the baffle plate 902 common branch roads of controlling the transportation of oven dry stalk make storeroom at a distance from being delivered to two carbonization chambers 12.
With reference to Fig. 3 b; There are three hollow flabellums 906 revolution drying oven 9 inside; Revolution drying oven 9 links to each other with appendix 7 away from an end of feed pipe 5; Hollow flabellum 906 in the revolution drying oven 9 can lead to high temperature hot gas, turns round simultaneously in order to the heating, drying stalk, and revolution drying oven 9 links to each other with chimney 8 near an end of feed pipe 5.
Stalk moisture after the oven dry is reduced to below 20%, can directly get into the charing stage.Time switch 901 and the baffle plate 902 common transportations of controlling the oven dry stalks make storeroom at a distance from being delivered to two carbonization chambers 12, and carbonization chamber 12 chargings and discharging are hocketed.
With reference to Fig. 4 a~Fig. 4 b, two-layer inside and outside carbonization chamber 12 is divided into, inside is direct combustion chamber 1205, and stalk is directly burnt, and the outer ring is the charing zone; The charing region exterior is equipped with protective cover 1204, is provided with many blast pipes 1206 at carbonization chamber 12, and an end of blast pipe 1206 is in communication with the outside, and the other end of blast pipe 1206 feeds the charing zone, is furnished with air nozzle on the every blast pipe 1206; Also be provided with a combustion chamber induced duct 1201 at carbonization chamber 12, induced duct 1,201 one ends in combustion chamber are in communication with the outside, and the other end of combustion chamber induced duct 1201 feeds direct combustion chamber 1205; On carbonization chamber 12 walls, also be provided with igniting ventilating opening 1202, igniting ventilating opening 1202 can be closed by plate 1203.
Under the direct combustion chamber 1205 vortex fan 1207 is set, many tremie pipes 13 are equipped with in the bottom of carbonization chamber 12, and many tremie pipes 13 constitute returning devices.
When the normal operation in carbonization chamber 12 igniting backs, part of raw materials by pyrolysis charring, changes into fuel gas and a small amount of tar of solid carbon and compositions such as CO, H2 in carbonization chamber 12; Another part of raw material is converted into heat energy and the ash content of supplying with charing directly directly burning in the combustion chamber 1205.After charcoal processing is accomplished; Under the effect of vortex fan 1207, the tremie pipe 13 even dischargings of solid carbon through connecting between two charcoal stoves, tremie pipe 13 ends are the sharp fluted body edge of a knife; In the grain header running, can plough out groove, biomass carbon is evenly applied in the groove on the face of land.At this moment, under the control of time switch 901 and baffle plate 902, feed arrangement is to another carbonization chamber charging, and this process hockets.
High temperature hot gas in the carbonization chamber is through air-introduced machine 11 suction chamber cleaning gas 6; With reference to Fig. 5, chamber cleaning gas 6 comprises metal baffle 602, metallic filter 603, activated carbon layer 604, explosion-proof air-introduced machine 605, exhaust duct 606, combustion chamber 607 and tar collecting pit 608; Chamber cleaning gas 6 links to each other with revolution drying oven 9 through appendix 7.
Be mingled with dust, steam and tar gas in the high-temperature combustible gas body that produces, suck chamber cleaning gas 6 through air-introduced machine 11.In chamber cleaning gas 6,, be guided to tar collecting pit 608 at first by the metal baffle 602 part tar gas that condenses.Gas is through metallic filter 603, active carbon layer 604 filtration, purifications subsequently; Air entering combustion chamber 7 with explosion-proof air-introduced machine 605 is introduced is lighted; The high temperature hot gas that burning produces gets into the hollow flabellum 906 of revolution drying oven 9 through appendix 7, and discharges through chimney 8 at last.
The utility model will gather in also field of the stalk fast charring that separates, and with high-temperature flue gas through becoming the fuel gas of cleaning after purifying, filtering, burning back heat is supplied with fresh straw oven dry, exhaust emissions compliance with environmental protection requirements.
Above-mentioned embodiment is used for the utility model of explaining; Rather than the utility model limited; In the protection domain of the utility model claim,, all fall into the protection domain of the utility model to any modification and the change that the utility model is made.

Claims (1)

1. a rice wheat harvest is cut and the straw charring incorporate combine in field also, comprises that the rice wheat harvest cuts threshing and stalk cutter sweep, straw charring and smoke eliminator; Threshing is cut in described rice wheat harvest and the stalk cutter sweep is made up of header (1), feed pipe (5), grain storehouse (14), it is characterized in that: straw charring and smoke eliminator are made up of revolution drying oven (9), chamber cleaning gas (6), appendix (7), chimney (8), feed pipe (10), air-introduced machine (11) and carbonization chamber (12);
One side of revolution drying oven (9) is connected with feed pipe (5); The opposite side of revolution drying oven (9) is connected with feed pipe (10); Described feed pipe (10) fork is divided into two branch roads and gets into carbonization chamber (12); Time switch (901) and the branch road that the common control oven dry of baffle plate (902) stalk transports make storeroom at a distance from being delivered to two carbonization chambers (12);
There are three hollow flabellums (906) revolution drying oven (9) inside; Revolution drying oven (9) links to each other with appendix (7) away from an end of feed pipe (5); Hollow flabellum (906) in the revolution drying oven (9) can lead to high temperature hot gas; Turn round simultaneously in order to the heating, drying stalk, revolution drying oven (9) links to each other with chimney (8) near an end of feed pipe (5);
Two-layer inside and outside carbonization chamber (12) is divided into, inside is combustion chamber (1205), and stalk is directly burnt, and the outer ring is the charing zone; Be provided with many blast pipes (1206) at carbonization chamber (12), an end of blast pipe (1206) is in communication with the outside, and the other end of blast pipe (1206) feeds the charing zone, is furnished with air nozzle on the every blast pipe (1206); Also be provided with a combustion chamber induced duct (1201) at carbonization chamber (12), induced duct (1201) one ends in combustion chamber are in communication with the outside, and the other end of combustion chamber induced duct (1201) feeds combustion chamber (1205);
Vortex fan (1207) is set under the combustion chamber (1205); Many tremie pipes (13) are equipped with in the bottom of carbonization chamber (12); Every tremie pipe (13) end is the sharp fluted body edge of a knife; In the grain header running, can plough out groove on the face of land, biomass carbon is evenly applied in the groove, many tremie pipes (13) constitute returning device;
On the charing locular wall, be provided with igniting ventilating opening (1202), igniting ventilating opening (1202) can be closed by plate (1203); High temperature hot gas in the carbonization chamber (12) is through air-introduced machine (11) suction chamber cleaning gas (6), and chamber cleaning gas (6) comprises metal baffle (602), metallic filter (603), activated carbon layer (604), explosion-proof air-introduced machine (605), exhaust duct (606), combustion chamber (607) and tar collecting pit (608); Chamber cleaning gas (6) links to each other with revolution drying oven (9) through appendix (7).
CN201220195663XU 2012-05-03 2012-05-03 Combine harvester integrating grain harvesting and straw carbonization returning Withdrawn - After Issue CN202551689U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102640617A (en) * 2012-05-03 2012-08-22 浙江大学 Device integrating rice and wheat harvest and straw carbonization and returning to field
CN107771511A (en) * 2017-12-07 2018-03-09 北方民族大学 A kind of environmentally friendly agricultural machinery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102640617A (en) * 2012-05-03 2012-08-22 浙江大学 Device integrating rice and wheat harvest and straw carbonization and returning to field
CN102640617B (en) * 2012-05-03 2013-09-18 浙江大学 Device integrating rice and wheat harvesting and straw carbonization and returning to field
CN107771511A (en) * 2017-12-07 2018-03-09 北方民族大学 A kind of environmentally friendly agricultural machinery

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AV01 Patent right actively abandoned

Granted publication date: 20121128

Effective date of abandoning: 20130918

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