CN102517114B - Biomass fuel prepared from pig manure - Google Patents
Biomass fuel prepared from pig manure Download PDFInfo
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- CN102517114B CN102517114B CN201110431177.3A CN201110431177A CN102517114B CN 102517114 B CN102517114 B CN 102517114B CN 201110431177 A CN201110431177 A CN 201110431177A CN 102517114 B CN102517114 B CN 102517114B
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- biomass fuel
- pig manure
- biomass
- ash
- fuel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention discloses a granular biomass fuel prepared from pig manure. Raw materials for the biomass fuel comprises pig manure, biomass powder and high-carbon ash prepared from fly ash, wherein, on the basis of dry weight, the fuel comprises 60 to 90% of pig manure, 10 to 30% of biomass powder and 1 to 40% of high-carbon ash. The invention has the following advantages: pig manure is effectively utilized and treated, the goal of environmental protection is achieved, and the fuel is provided; addition of biomass powder and high-carbon ash into pig manure enables a peculiar smell of manure to be removed and an ignition point of the prepared fuel to be reduced.
Description
Technical field
The present invention relates to a kind of biomass fuel that utilizes pig manure to manufacture, more particularly, the present invention relates to a kind of particulate biomass fuel that utilizes high charcoal ash to make reodorant, prepared by pig manure.
Background technology
Along with a large amount of implementations of intensive pig production, a large amount of pig manures is concentrated and is created in pig farm, due to the moisture height of pig manure, is difficult for storage, stink is large, traditional processing mode is pig manure to be transported to farmland go back field processing, needs a large amount of human and material resources, and shipment distance is large, cost is high, a large amount of pig manures cannot be processed in time, be caused environmental pollution, affect people, animal health.
Chinese patent application 200810045547.8 discloses a kind of method of processing and utilization of pig manure, and it comprises: regulate moisture 1.: fresh pig dung is with dry pig manure through stirring, mixing, and water ratio drops to 55～60%.2. breeding earthworm: pig manure is deposited on earthworm bed, drops into earthworm kind breeding earthworm.3. feed: dry earthworm, join in feed base-material and fit in high protein feed.4. fermentation: in fermentation booth, pig manure carries out continuous aerobic fermentation processing, 5～7 days cycles, within every 2 hours, turn over throwing once, inject fresh air simultaneously, water ratio drops to 40～45%.5. dry: pig manure carries out drying treatment in pneumatic drier, and water ratio drops to below 14%.6. deodorizing processing: tail gas carries out deodorizing processing by wet dust collector.7. edible mushrooms base-material: pig manure is added in the fillers such as straw joint, wheat straw joint, make the base-material of culturing edible fungus.The scheme of this patent application is mainly utilized pig manure breeding earthworm, is produced high protein feed, or makes edible mushrooms base-material.
Chinese patent application 200810045570.7 discloses a kind of novel technique for making pig feces into bait, it comprises the following steps: to add calcium superphosphate and unslaked lime to carry out deodorizing in fresh pig manure, pig manure is carried out to solid-liquid separation with solid-liquid separating machine, in solid pig manure, add agricultural crop straw powder, cavings, sorbent material, high temperature coprophil and yeast, after fermentation, make pig manure material, in pig manure material, add mixed vitamin preparation, attractive substance, tackiness agent, then oven dry, expanded, just makes fish granular bait for fish.The scheme of this patent application is mainly to utilize pig manure to manufacture fish granular bait for fish.
Chinese patent application 201010580871.7 discloses a kind of method of utilizing feeding sow manure preparing complete feed of beef cattle, the formula of feed prepared by the method is: 40～45 parts of excrement slags, 20～30 parts of brewer's grains, 10～15 parts of peanut films, 2～5 parts of corns, 2～3 parts of sugared slags, 2～5 parts of soy sauce residues, 5～10 parts of face cakes, 2～3 parts of Preblendes.The scheme of this patent application is mainly to utilize pig manure to manufacture ox feed.
Chinese patent application 201010102945.6 discloses a kind of cooperation pig feed of being processed into pig manure, and it adds sodium bicarbonate, scolecite processing and fabricating to form by fresh pig manure.The scheme of this patent application is mainly to utilize pig manure to manufacture pig feed.
Chinese patent application 200810232647.1 discloses a kind of biological nitrogen fixation fertile taking pig manure as main base-material, particularly a kind of can be pig manure that vinelandii provide food, moisture and air such as enriching potassium, sodium, magnesium, sulphur as the auxiliary material material of leading and be aided with the pig manure that the becomes thoroughly decomposed biological nitrogen fixation fertile taking pig manure as main base-material being made of preparing burden.The scheme of this patent application is mainly to utilize pig manure to manufacture fertilizer.
Chinese patent application 200810069727.X discloses a kind of method of processing pig manure production fertilizer, horsehit is inoculated in pig manure, by twice thermophilic fermentation, purifying, amplification high temperature fiber bacterium wherein, prepare fermenting agent, then in sun power Isolation warm house, inoculate compost, produce fertilizer.The scheme of this patent application is also to utilize pig manure to manufacture fertilizer.
Comprehensive technique scheme is known, and prior art is mainly base-material, the fertilizer of manufacturing for plant-growth for the utilization of pig manure, or the feed of animal edible, and does not relate to the fuel that the mankind use.Therefore, providing a kind of utilizes biomass fuel prepared by pig manure to become the problem that industry need to solve.
Summary of the invention
For the shortcoming of prior art, the object of this invention is to provide a kind of biomass fuel that utilizes pig manure to prepare.
To achieve these goals, the invention provides a kind of particulate biomass fuel of being prepared by pig manure, its raw material comprises pig manure, biomass powder scraps and by the standby high charcoal ash of coal ash for manufacturing; Wherein, with dry weight basis, this fuel comprises the pig manure of 60%-90%, the biomass powder scraps of 10%-30%, the high charcoal ash of 1%-40%.The dry weight is here dried weight under normal temperature and pressure, also contains certain moisture, not completely not moisture, the variation to some extent with area and season of its water content.
The pig manure using in the present invention can be the ight soil on the pig farm of large-scale farming, also can be individual raiser's ight soil.
Biomass powder scraps in the present invention can be powder obtaining after sawdust, bamboo bits, wood chip, crops stalk crushing etc.Biomass powder scraps also has the effect of removing ight soil peculiar smell, and its volatile matter can also make the point of ignition that makes fuel reduce simultaneously.
In the present invention, that fuel pellet can be is cylindrical, six prisms or other shape, and fuel pellet is of a size of 5-12 millimeter, is preferably 8-10 millimeter.In this specification sheets, the fuel pellet of indication is of a size of the diameter of columniform circular cross section, or the external circular diameter of the hexagonal cross-section of six prisms, or the maximal side of other shaped particles.
In the present invention, high charcoal ash is the ash content that carbon content is higher, and it has certain adsorption, and it can be particulate state or powdery, is preferably powdery.
In the present invention, high charcoal ash is as reodorant, and with respect to biological materials such as agricultural crop straws, it has better deodorizing effect; In addition, high charcoal ash self also participates in burning; And high charcoal ash generates carbonic acid gas in the time of perfect combustion, its products of combustion does not pollute environment.
Consider the manufacturing cost of high charcoal ash, the high charcoal ash ratio in raw material is unsuitable excessive.Preferably, according to an embodiment of the present invention, with dry weight basis, it comprises the high charcoal ash of 1%-10%; More preferably, according to an embodiment of the present invention, with dry weight basis, it comprises the high charcoal ash of 1%-5%.According to an embodiment of the present invention, also can comprise the reodorant that other is conventional in raw material, for example 0.1-3% white lime, because white lime does not participate in burning, so the amount of white lime is unsuitable too many.
According to an embodiment of the present invention, can be fresh excreta as the pig manure of raw material, also can be argol or methane-generating pit ight soil after treatment.
According to an embodiment of the present invention, biomass powder scraps is powder obtaining after sawdust, bamboo bits, wood chip, crops stalk crushing etc., is preferably bamboo bits and/or wood chip; Its size is less than 1 millimeter, is preferably and is less than 0.5 millimeter.
According to an embodiment of the present invention, in raw material, also comprise binding agent.This binding agent can be modified starch, for example cassava modified starch or modified corn starch.By adding binding agent, make raw material be more prone to moulding.
High charcoal ash of the present invention can various raw materials, various technique is made.Because the end-use of pig manure fuel of the present invention is burning, as the high charcoal ash of raw material, its raw materials cost and manufacturing cost, all unsuitable too high.According to another embodiment of the present invention, high charcoal ash is extracted by the mode of flotation by flyash, and it is preparation as follows specifically:
1. in powdered coal ash, add flotation agent and/or collecting agent, form mixture;
2. in floatation equipment, make step 1. in the mixture of gained fall from the top of floatation equipment;
3. in floatation equipment, form the gas that upwards blows, the mixture formation counter current contact that this gas and step fall in 2., and also this gas is turbulent state in the process moving upward;
4. collect step 3. in gas move upward and the particulate matter of the flotation plate that passes through described floatation equipment that forms, the high charcoal ash being extracted by flyash.
In the present invention, the flotation agent that step is used in 1. can be the flotation agent of pine camphor oil or C8 aronmatic or other any type, and the collecting agent using can be LIGHT DIESEL OIL or diesel oil etc.In fact, the interpolation of flotation agent and/or collecting agent is not necessary, neither crucial inventive point of the present invention; According to the particular case of powdered coal ash, sometimes also can not add any flotation agent or collecting agent; But, in order to improve flotation efficiency, preferably adding a small amount of flotation agent and/or collecting agent, the flotation agent that for example added and the total amount of collecting agent can be the 0.1-10% of powdered coal ash gross weight.
In the present invention, the gas that step upwards blows in be 3. pressure higher than atmospheric gas, be preferably a gauge pressure 1-6 normal atmosphere, more preferably 1-2 atmospheric gas.
In processing method of the present invention, because the main component of flyash is carbon granule and ash content, add after flotation agent and/or collecting agent and/or other auxiliary agent, particle in flyash contacts, collides with bubble, the carbon granule that flotability is good optionally adheres to bubble, and be carried rising, and realize flotation, the poor ash content of flotability is to sinking.
Especially, due in the present invention, the gas upwards blowing is turbulent state, the duration of contact of carbon granule and bubble is long, contacts more fully, and the probability that fly ash grain is broken for carbon granule and ash particles increases greatly, thereby make flotation effect better, flotation efficiency is higher.
In the present invention, the flotation plate of floatation equipment can be single or multiple lift, for example, and 2-5 layer; Wherein, step 4. the collected upwards particulate matter of the flotation plate by floatation equipment be by the particulate matter of the superiors' flotation plate of floatation equipment.
According to another embodiment of the present invention, turbulent state is by the different multiply upward air stream of gas angulation in floatation equipment is formed.For example, loose device of air can be set in floatation equipment, the surface of this loose device of air is provided with multiple pores, and the plurality of pore is set to point to oblique upper with different angles separately, thereby can in floatation equipment, form turbulent state.On the contrary, if according to prior art, set multiple tracheaes or direction or the angle of pore are identical, can only form eddy flow state, and eddy flow state are unfavorable for carrying out flotation, do not realize the object of flotation even at all.
Compared with prior art, the present invention has following beneficial effect:
(1) effectively utilize pig manure, both processed pig manure, reach the object of environmental protection, fuel is provided again;
(2) by add biomass powder scraps in pig manure, both remove the peculiar smell of ight soil, reduced again the point of ignition of prepared fuel;
(3), using high charcoal ash as reodorant, with respect to biological materials such as agricultural crop straws, it has better deodorizing effect;
(4) high charcoal ash self also participates in burning, and it generates carbonic acid gas in the time of perfect combustion, and its products of combustion does not pollute environment.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Brief description of the drawings
Fig. 1 is in embodiments of the invention 1, extracts the structural representation of the floatation equipment of high charcoal ash by the method for flotation from flyash.
Embodiment
Embodiment 1
Embodiments of the invention 1 are for to utilize pig manure, high charcoal ash, biomass powder scraps (bamboo wood chip), white lime manufacture to be of a size of the biofuel particle of 8-10 millimeter.With dry weight basis, it comprises 70% pig manure, 25% bamboo wood chip, 1% white lime, 4% high charcoal ash.
In the raw material of the present embodiment, high charcoal ash extracts by flotation from flyash, utilizes flyash to extract the step of high charcoal ash as follows:
A, in powdered coal ash, add flotation agent and/or collecting agent, form mixture;
B, the mixture that makes gained in steps A in floatation equipment fall from the top of floatation equipment;
C, the gas that formation upwards blows in floatation equipment, the mixture falling in this gas and step B forms counter current contact, and this gas is turbulent state in the process moving upward;
D, collect in step C by the particulate matter of the flotation plate of described floatation equipment, the high charcoal ash being extracted by flyash.
As shown in Figure 1, the specific embodiment that is extracted the fuel ash flotation separation equipment of high charcoal ash by flyash, comprising: storage device 1, distribution device 2, vertically arrange cylindrical shell 3, bore bucket-shaped loose device of air 4, multilayer flotation plate 5, air feeder 6, physical separation means as ultrasonic separation means 8, tail ash bin 7, screen plate 9, overflow collection section 301, tail ash collection section 305.
The cylindrical shell 3 vertically arranging can be divided into three parts, is followed successively by from top to bottom: the first flotation section 302, divergent cone section 303, the second flotation section 304.Wherein, the first flotation section 302 is thinner, is provided with one deck flotation plate 5 in it.The second flotation section 304 is thicker, is provided with the bucket-shaped loose device of air 4 of cone and one deck flotation plate 5 in it.Divergent cone section 303, between the first flotation section 302 and the second flotation section 304, is the bucket-shaped transitional region of the cone of point upward.
Overflow collection section 301 is positioned at the outside of the first flotation section 302, and the top of the first flotation section 302 is between the top and bottom of overflow collection section 301, and the charcoal particle of these overflow collection section 301 interior collections i.e. the high charcoal ash for being got by coal ash lifting; In addition, the bottom of overflow collection section 301 is provided with discharge port 309.
The cone that tail ash collection section 305 be pointed end is bucket-shaped, and its bottom tip place is provided with tail ash outlet 306, and tail ash exports 306 and is connected with tail ash tube road 307.Between the second flotation section 304 and tail ash collection section 305, be provided with screen plate 9.
The cone that loose device of air 4 is point upward is bucket-shaped, and its cone bucket angle is 120 °, and its conical surface is provided with multiple pores 401; It is positioned at the second flotation section 304, and is positioned at 305 tops, cone bucket-shaped tail ash collection section.Loose device of air 4 is provided with multiple ultrasonic separation means 8.
Spaced multilayer (for example two-layer) flotation plate 5 lays respectively in the first flotation section 302 and the second flotation section 304, and wherein bottom flotation plate 5 is positioned at the top of the bucket-shaped loose device of air 4 of cone.
Distribution device 2 is positioned at 301 tops, overflow collection section, for example, for bottom is provided with the container of many (8) distributing pipelines 201.The end of distributing pipelines 201 within the second flotation section 304, bore between bucket-shaped loose device of air 4 and bottom flotation plate 5.
In storage device 1, be provided with whipping appts 101, for powdered coal ash slurry and flotation agent are fully stirred.Tail ash tube road 307 is connected to tail ash bin 7 from tail ash outlet 306, and tail ash bin 7 is connected to storage device 1 by circulating line 310; The bottom of storage device 1 is provided with charging line 102, and charging line 102 is provided with slag stock pump 103, and this charging line 102 leads to distribution device 2.
Air feeder 6 connects the first gas pipeline 601 and the second gas pipeline 602; Wherein, the first gas pipeline 601 is communicated with the multiple pores 401 on the bucket-shaped loose device of air 4 of cone, and the second gas pipeline 602 leads to distribution device 2.
In addition, on circulating line 310, be also provided with bypass line as removing ash pipeline 311, on circulating line 310 and removing ash pipeline 311, be equipped with valve.According to fine coal ash composition and processing requirement, tail ash can be reentered in flotation separation equipment and be carried out flotation by circulating line 310 and 102, to reclaim charcoal particle wherein.
In addition, above-mentioned floatation process is one-level flotation, sometimes according to circumstances also can carry out secondary floatation, and now, the charcoal particle in overflow collection section 301 enters secondary floatation equipment by the discharge port 309 of its bottom, obtains the high charcoal ash that carbon content is higher.
Embodiment 2
Embodiments of the invention 2 are for utilizing pig manure, high charcoal ash, biomass powder scraps (bamboo wood chip), binding agent (modified corn starch) manufacture to be of a size of the biofuel particle of 8-10 millimeter.With dry weight basis, it comprises 75% pig manure, 15% bamboo wood chip, 5% high charcoal ash, 5% modified corn starch.
Although the present invention discloses as above with preferred embodiment, not in order to limit scope of the invention process.Any those of ordinary skill in the art, not departing from invention scope of the present invention, when doing a little improvement, every equal improvement of doing according to the present invention, should be invention scope of the present invention and contains.
Claims (9)
1. a granular biomass fuel of being prepared by pig manure, its raw material comprise pig manure, biomass powder scraps and extracted by flyash, as the high charcoal ash of reodorant; Wherein, with dry weight basis, this fuel comprises the pig manure of 60%-90%, the biomass powder scraps of 10%-30%, the high charcoal ash of 1%-40%; Wherein, described biomass powder scraps is the powder obtaining after bamboo bits, wood chip or crops stalk crushing.
2. biomass fuel as claimed in claim 1, wherein, with dry weight basis, described biomass fuel comprises the high charcoal ash of 1%-10%.
3. biomass fuel as claimed in claim 2, wherein, with dry weight basis, described biomass fuel comprises the high charcoal ash of 1%-5%.
4. biomass fuel as claimed in claim 1, wherein, described biomass fuel further comprises the white lime of 0.1-3%.
5. biomass fuel as claimed in claim 4, wherein, described pig manure is argol or methane-generating pit ight soil after treatment.
6. biomass fuel as claimed in claim 1, wherein, described biomass powder scraps is bamboo bits and/or wood chip.
7. biomass fuel as claimed in claim 1, wherein, also comprises binding agent in described biomass fuel.
8. biomass fuel as claimed in claim 1, wherein, described high charcoal ash is prepared as follows by flyash:
1. in powdered coal ash, add flotation agent and/or collecting agent, form mixture;
2. in floatation equipment, make step 1. in the mixture of gained fall from the top of floatation equipment;
3. in floatation equipment, form the gas that upwards blows, the mixture formation counter current contact that this gas and step fall in 2., and also this gas is turbulent state in the process moving upward;
4. collect step 3. in gas move upward and the particulate matter of the flotation plate that passes through described floatation equipment that forms, the high charcoal ash being extracted by flyash.
9. biomass fuel as claimed in claim 8, wherein, described turbulent state is by the different multiply upward air stream of described gas angulation in described floatation equipment is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110431177.3A CN102517114B (en) | 2011-12-20 | 2011-12-20 | Biomass fuel prepared from pig manure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110431177.3A CN102517114B (en) | 2011-12-20 | 2011-12-20 | Biomass fuel prepared from pig manure |
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| CN102517114A CN102517114A (en) | 2012-06-27 |
| CN102517114B true CN102517114B (en) | 2014-11-12 |
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| CN201110431177.3A Expired - Fee Related CN102517114B (en) | 2011-12-20 | 2011-12-20 | Biomass fuel prepared from pig manure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI549762B (en) * | 2015-04-23 | 2016-09-21 | 林翰謙 | The preparation method of "biomass sorghum distillery residues fuel briquettes (biosoft) from sorghum distillery residues and high fiber herbivore animal excrements |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421573B (en) * | 2013-07-30 | 2014-10-08 | 湖南大学 | Method for preparing solid forming fuel with pig manure as raw material |
| CN106281562B (en) * | 2016-09-23 | 2019-01-22 | 福建省农业科学院农业工程技术研究所 | The method for wanting raw material to prepare biomass fuel based on fresh pig manure |
| CN107057791A (en) * | 2017-03-24 | 2017-08-18 | 合肥慧谷农业科技有限公司 | A kind of solid fuel and preparation method |
| CN109554206A (en) * | 2017-09-27 | 2019-04-02 | 范爱国 | The preparation method of bio-fuel is made in a kind of animal wastes |
| CN111778080A (en) * | 2020-06-08 | 2020-10-16 | 宁夏瑞威尔能源环境工程有限公司 | Preparation method of biomass granular fuel |
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| CN101376855A (en) * | 2008-04-30 | 2009-03-04 | 汤广武 | Sludge synthetic fuel and preparation thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20181220 |