CN109721441A - A kind of system and method preparing oil, gas and charcoal base coat fertilizer using agricultural-forestry biomass Poly-generation - Google Patents
A kind of system and method preparing oil, gas and charcoal base coat fertilizer using agricultural-forestry biomass Poly-generation Download PDFInfo
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- CN109721441A CN109721441A CN201711042918.2A CN201711042918A CN109721441A CN 109721441 A CN109721441 A CN 109721441A CN 201711042918 A CN201711042918 A CN 201711042918A CN 109721441 A CN109721441 A CN 109721441A
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 77
- 239000003610 charcoal Substances 0.000 title claims abstract description 69
- 239000002028 Biomass Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000000197 pyrolysis Methods 0.000 claims abstract description 66
- 238000009825 accumulation Methods 0.000 claims abstract description 30
- 238000002485 combustion reaction Methods 0.000 claims abstract description 30
- 239000000126 substance Substances 0.000 claims abstract description 29
- 238000010791 quenching Methods 0.000 claims abstract description 26
- 230000000171 quenching effect Effects 0.000 claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 239000011230 binding agent Substances 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims description 76
- 239000003921 oil Substances 0.000 claims description 51
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 21
- 239000003546 flue gas Substances 0.000 claims description 21
- 239000002296 pyrolytic carbon Substances 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 12
- 238000005469 granulation Methods 0.000 claims description 11
- 230000003179 granulation Effects 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052799 carbon Inorganic materials 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 10
- 235000015097 nutrients Nutrition 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
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- 238000010521 absorption reaction Methods 0.000 description 2
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- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
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- 206010021143 Hypoxia Diseases 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
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- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of system and methods that oil, gas and charcoal base coat fertilizer are prepared using agricultural-forestry biomass Poly-generation; wherein; system specifically includes that heat accumulation type radiant tube revolving bed pyrolysis oven, oil gas direct-combustion boiler, quenching system, the first crushing device, batch mixer and roller pelletizer; wherein, oil gas direct-combustion boiler is connect with the heat accumulation type radiant tube revolving bed pyrolysis oven；Quenching system is connected with the heat accumulation type radiant tube revolving bed pyrolysis oven and the oil gas direct-combustion boiler respectively；First crushing device is connected with the quenching system；The batch mixer is connected with first crushing device；Roller pelletizer is connected with the batch mixer and the oil gas direct-combustion boiler respectively.The present invention has recycled the energy in agricultural abandoned biomass, and using biological powdered carbon and binder as coated fertilizer, coating is carried out to chemical fertilizer, had both realized the slow release effect of nutriment in chemical fertilizer, the effect for realizing retain water and nutrients again improves the utilization rate of chemical fertilizer.
Description
Technical field
The invention belongs to agricultural resources technical fields, and in particular to it is a kind of using agricultural-forestry biomass Poly-generation prepare oil,
The system and method for gas and charcoal base coat fertilizer.
Background technique
Currently, for being broadly divided into chemical fertilizer and organic fertilizer in agriculture fertilizer, but with the improvement of living standards, to agriculture
The farming of crop is also increasingly simplified, increasingly mechanization, since chemical fertilizer is manually manufactured using chemically and physically method
Containing one or more of crop growths need nutrient fertilizer, long-time service be easy to cause soil texture to be destroyed,
Productive potentialities reduce, metal and toxic element increased, microbial activity reduces, substance is difficult to convert and degrade, nutrient loses
The problems such as tune, nitrates accumulation, acidification aggravation, pH change too greatly.And in organic fertilizer, mostly farmyard manure, although having many excellent
But there is the defects of inconvenient transport and fertilising in point.Currently, agricultural has entered modernization period, developing modern agriculture must be with now
The agricultural material product in generation equips modern agriculture.China is large agricultural country, and increasing fertilizer is to guarantee increases in grain production, agricultural product quality peace
A complete important link.Nutrient contained by conventional chemical fertilizers currently on the market is less, cannot fully meet crop
Needs of growth, and price is higher, effect of increasing production is unobvious, additionally, there may be that utilization rate of fertilizer is low, applied amount is excessive etc. and asks
Topic.
Charcoal is biological residuum under anoxic or hypoxia condition, stable, the height aromatization generated through high temperature pyrolysis
Substance, be mainly made of elements such as carbon, hydrogen, oxygen, wherein phosphorus content is up to 80% or more；For from microstructure, charcoal
It is mostly made of tightly packed, high distortion aromatic rings lamella, pore structure is flourishing, has biggish specific surface area, surface is rich in
The functional groups such as carboxyl, phenolic hydroxyl group, carbonyl, lactone group, acid anhydrides have good absorption property.Charcoal prepares raw material simultaneously
Widely, cost is relatively low, is advantageously implemented the resource utilization of solid waste.Research shows that charcoal can after being manured into soil
Crop is improved to the absorbability and soil fertility of soil nutrient, improves the supply of the available nutrient of soil, reaches increase and make produce
The effect of amount and biomass.In addition, the output increased of crop will be more obvious if charcoal and other fertilizers are applied,
Chemical fertilizer expense can also be effectively reduced.It, can also a large amount of bio oil of by-product and combustible gas class during charcoal production
Energy products.In recent years, biomass through pyrolysis has obtained rapidly developing to prepare biomass fuel technology, and this method can incite somebody to action
Biomass efficient is converted into bio oil, combustible gas (power generation) and the biomass carbon that easily storage, energy density are high.But the prior art
In the charcoal base manure material coproduction that is related to, the only production of charcoal do not carry out further processing to charcoal and comes true
The agricultural fertilizer that just can be used, and energy utilization rate is low in production process.
Summary of the invention
Oil, gas and charcoal are prepared using agricultural-forestry biomass Poly-generation in view of the deficiencies of the prior art, the present invention proposes a kind of
The system and method for base coat fertilizer, the oil gas that agricultural-forestry biomass pyrolysis is generated, by direct combustion producing steam, a part is sent out
Electricity, another part are used for granulation of fertilizer, have recycled the energy in agricultural abandoned biomass；Simultaneously will pyrolysis generate pyrolytic carbon with
Chemical fertilizer is combined production charcoal base coat fertilizer, has not only realized the straw-returning of agricultural-forestry biomass, but also increase the soil organism
Content；In addition, carrying out coating using biological powdered carbon and binder as coated fertilizer to chemical fertilizer, utilizing the absorption of charcoal
Ability, had not only realized the slow release effect of nutriment in chemical fertilizer, but also realized the effect of retain water and nutrients, improved chemical fertilizer
The utilization rate of material.
Be at least solve one of above-mentioned technical problem, the technical scheme adopted by the invention is as follows:
The invention proposes a kind of systems for preparing oil, gas and charcoal base coat fertilizer using agricultural-forestry biomass Poly-generation, including accumulation of heat
Formula radiant tube revolving bed pyrolysis oven, oil gas direct-combustion boiler, quenching system, the first crushing device, batch mixer and roller pelletizer,
In, the heat accumulation type radiant tube revolving bed pyrolysis oven obtains high-temperature oil gas and pyrolysis for carrying out pyrolysis processing to biomass
Charcoal；The oil gas direct-combustion boiler is exported with the high-temperature oil gas of the heat accumulation type radiant tube revolving bed pyrolysis oven and is connected, and being used for will be high
Warm oil gas carries out burning processing, obtains steam and low-temperature flue gas；The quenching system, feed inlet and the heat accumulation type radiant tube
The discharge port of revolving bed pyrolysis oven is connected, and smoke inlet is connected with the exhanst gas outlet of the oil gas direct-combustion boiler, utilizes low temperature
Flue gas cools down to pyrolytic carbon, obtains charcoal；First crushing device, the discharging of feed inlet and the quenching system
Mouth is connected, for charcoal to be carried out break process；The batch mixer, the discharge port of feed inlet and first crushing device
It is connected, for broken charcoal to be carried out mixing processing together with adhesive powder；The roller pelletizer, feed inlet
It is connected with the discharge port of the batch mixer, steam inlet is connected with the steam (vapor) outlet of the oil gas direct-combustion boiler, for that will mix
Uniform charcoal and binder are closed as coated fertilizer, while being passed through steam, coating processing is carried out to chemical fertilizer granule, obtains charcoal
Base coat fertilizer.
Further, the heat accumulation type radiant tube revolving bed pyrolysis oven is according to different temperatures along rotary hearth furnace bottom direction of rotation
It is divided into dry section, pyrolysis zone, the temperature of the dry section is set as 100-200 DEG C, and the temperature of the pyrolysis zone is set as 400
℃-700℃。
Further, the pyrolysis zone is arranged in the high-temperature oil gas outlet of the heat accumulation type radiant tube revolving bed pyrolysis oven
Furnace roof position.
Further, further include double helix discharging machine, the discharging of the heat accumulation type radiant tube revolving bed pyrolysis oven is set
Place.
Further, further include the second crushing device, connect with the feed inlet of the heat accumulation type radiant tube revolving bed pyrolysis oven
It connects, for agricultural-forestry biomass to be carried out break process.
Further, further include steam turbine, connect with the steam (vapor) outlet of the oil gas direct-combustion boiler, for by steam into
Row power generation.
In another aspect of this invention, a kind of method produced using mentioned-above system is proposed, including with
Lower step:
(1) pyrolysis processing: agricultural-forestry biomass is sent into heat accumulation type radiant tube revolving bed pyrolysis oven, is carried out pyrolysis processing, is obtained
High-temperature oil gas and pyrolytic carbon；
(2) burning is handled: the high-temperature oil gas being passed through oil gas direct-combustion boiler and carries out burning processing, obtains steam and low temperature cigarette
Gas；
(3) quenching is handled: the pyrolytic carbon is sent into quenching system, is cooled down using the low-temperature flue gas in step (2),
Obtain charcoal；
(4) be crushed mixing processing: by the charcoal via the first crushing device carry out break process after, together with binder into
Enter and carries out mixing processing in batch mixer；
(5) coating granulation is handled: the charcoal being uniformly mixed in step (4) being passed through roller as coated fertilizer with binder and is made
In grain machine, while the steam being passed through in step (2), coating processing is carried out to chemical fertilizer granule, obtains charcoal base coat fertilizer.
Further, the specific work process that burning is handled in step (2): the high-temperature oil gas is passed through oil gas direct-combustion boiler
Burning processing is carried out, steam and low-temperature flue gas are obtained；The steam is passed into the roller pelletizer and carries out coating processing, described
Low-temperature flue gas enters the quenching system and carries out cooling processing to pyrolytic carbon, obtains charcoal.
Further, in step (4) be crushed mix processing specific work process: charcoal is crushed to 100 mesh hereinafter,
And it adds binder and carries out mixed processing.
Further, the weight ratio of the charcoal and the binder is 10-30:1.
The present invention is include at least the following beneficial effects:
(1) oil gas that the present invention generates agricultural-forestry biomass pyrolysis, by direct combustion producing steam, a part of steam generates electricity, separately
A part of steam is used for granulation of fertilizer, has recycled the energy in agricultural abandoned biomass；
(2) pyrolytic carbon and chemical fertilizer that pyrolysis generates are combined production charcoal base coat fertilizer by the present invention, have both realized agricultural biology
The straw-returning of matter, and increase the content of the soil organism；
(3) present invention carries out coating to chemical fertilizer, utilizes the suction of charcoal using biological powdered carbon and binder as coated fertilizer
Attached ability realizes the slow release effect of nutriment in chemical fertilizer, moreover it is possible to which the effect for realizing retain water and nutrients improves chemical fertilizer
The utilization rate of material；
(4) pyrolysis furnace high-temperature anoxybiotic environment of the present invention, pyrolysis devolatilization gas and high-temperature flue gas completely cut off, and reduce and mix secondary dirt
Dye；And in pyrolytic process, the opposite material bed of material is static, is not pressurized, does not stir, radiation tube fluid with to react burner hearth complete
Isolation, avoids and leads to the problem of flying dust.
Detailed description of the invention
Fig. 1 is present system structural schematic diagram.
Fig. 2 is process flow chart of the invention.
Wherein, the second crushing device 1, heat accumulation type radiant tube revolving bed pyrolysis oven 2, oil gas direct-combustion boiler 3, quenching system 4,
First crushing device 5, batch mixer 6, roller pelletizer 7, steam turbine 8.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, combined with specific embodiments below to this
Invention is described in further detail.The embodiments described below is exemplary, and for explaining only the invention, and cannot be understood
For limitation of the present invention.Particular technique or condition are not specified in embodiment, according to the literature in the art described skill
Art or condition are carried out according to product description.
According to an embodiment of the invention, Fig. 1 is present system structural schematic diagram, shown referring to Fig.1, benefit of the present invention
System with agricultural-forestry biomass Poly-generation preparation oil, gas and charcoal base coat fertilizer includes: the second crushing device 1, heat accumulation type radiant tube
Revolving bed pyrolysis oven 2, oil gas direct-combustion boiler 3, quenching system 4, the first crushing device 5, batch mixer 6, roller pelletizer 7, steam
Turbine 8.
According to an embodiment of the invention, Fig. 2 is process flow chart of the invention, and referring to Fig.1 and shown in 2, of the present invention the
Sledging device, for being passed through the heat accumulation type radiant tube revolving bed pyrolysis after agricultural-forestry biomass raw material is carried out break process
Furnace.
According to an embodiment of the invention, referring to Fig.1 and shown in 2, heat accumulation type radiant tube revolving bed pyrolysis oven of the present invention
It include: feed inlet, high-temperature oil gas outlet and discharge port, wherein the feed inlet of the pyrolysis oven and the second crushing device phase
Even, the furnace roof position of the pyrolysis zone is arranged in the high-temperature oil gas outlet, is additionally provided with double helix discharging in the discharge outlet
Machine discharges, and for being pyrolyzed to broken biomass, obtained high-temperature oil gas is passed through the oil gas direct-combustion boiler,
Obtained pyrolytic carbon is passed through quenching system.
According to some embodiments of the present invention, heat accumulation type radiant tube revolving bed pyrolysis oven of the present invention is according to different temperatures
Dry section, pyrolysis zone are divided into along rotary hearth furnace bottom direction of rotation, and the temperature of the dry section is set as 100-200 DEG C, described
The temperature of pyrolysis zone is set as 400 DEG C -700 DEG C.
According to an embodiment of the invention, oil gas direct-combustion boiler of the present invention includes: high-temperature oil gas referring to Fig.1 and shown in 2
Import, exhanst gas outlet, the first steam (vapor) outlet and the second steam (vapor) outlet, wherein the high-temperature oil gas import and the heat accumulating type spoke
The high-temperature oil gas outlet for penetrating pipe revolving bed pyrolysis oven is connected, and for high-temperature oil gas to be carried out burning processing, obtained steam is through institute
It states the first steam (vapor) outlet and is passed through the steam turbine, obtained low-temperature flue gas is passed through the roller through second steam (vapor) outlet and makes
Grain machine.
According to an embodiment of the invention, quenching system of the present invention includes: feed inlet, flue gas referring to Fig.1 and shown in 2
Entrance and discharge port, wherein the feed inlet of the quenching system is connected with the discharge port of heat accumulation type radiant tube revolving bed pyrolysis oven,
The smoke inlet is connected with the exhanst gas outlet of the oil gas direct-combustion boiler, is cooled down using low-temperature flue gas to pyrolytic carbon, is obtained
To charcoal be passed through first crushing device.
According to an embodiment of the invention, referring to Fig.1 and shown in 2, the first crushing device of the present invention include: feed inlet and
Discharge port, wherein the feed inlet is connected with the discharge port of the quenching system, for charcoal to be carried out break process, obtains
To biological powdered carbon be passed through the batch mixer.
According to an embodiment of the invention, batch mixer of the present invention includes: feed inlet and discharging referring to Fig.1 and shown in 2
Mouthful, wherein the feed inlet is connected with the discharge port of first crushing device, is used for the biological powdered carbon and binder powder
End carries out mixing processing together, as coated fertilizer.
According to an embodiment of the invention, roller pelletizer of the present invention includes: feed inlet and steaming referring to Fig.1 and shown in 2
Vapour entrance, wherein the feed inlet is connected with the discharge port of the batch mixer, the steam inlet and the oil gas direct-combustion boiler
The second steam (vapor) outlet be connected, for the chemical fertilizer granule of the coated fertilizer and addition to be carried out coating processing, while being passed through steaming
Vapour is granulated, and charcoal base coated fertilizer is obtained.
According to an embodiment of the invention, referring to Fig.1 and shown in 2, steam turbine of the present invention and the oil gas direct combustion pot
First steam (vapor) outlet of furnace is connected, for steam to generate electricity.
According to some embodiments of the present invention, agricultural-forestry biomass of the present invention is agricultural and production of forestry and process
The waste of middle generation, such as stalk, branch leaf, rice husk and sawdust.
In another aspect of this invention, a kind of mentioned-above utilization agricultural-forestry biomass Poly-generation preparation of utilization is proposed
The method that the system of oil, gas and charcoal base coat fertilizer is produced, specifically includes following steps.
(1) precrushing is handled: agricultural-forestry biomass being passed through second crushing device and carries out being crushed to 10cm or less.
(2) pyrolysis processing: broken agricultural-forestry biomass is sent into heat accumulation type radiant tube revolving bed pyrolysis oven, carries out heat
Solution processing, pyrolysis temperature are 400-700 DEG C, and pyrolysis time 30-60min obtains high-temperature oil gas and pyrolytic carbon；
(3) burning is handled: the high-temperature oil gas being passed through oil gas direct-combustion boiler and carries out burning processing, obtains steam and low temperature cigarette
Gas, described steam a part are passed into the roller pelletizer and carry out coating granulation processing, and the low-temperature flue gas is passed through described put out
Burnt system carries out cooling processing to pyrolytic carbon.
(4) quenching is handled: the pyrolytic carbon that the step (2) is obtained is sent into quenching system, using described in step (3)
Low-temperature flue gas cools down, and obtains charcoal.
(5) be crushed and mixing processing: by the charcoal via the first crushing device carry out break process to 100 mesh with
Under, biological powdered carbon is obtained, is passed through in batch mixer and carries out mixing processing with the adhesive powder of addition, wherein charcoal and bonding
The weight ratio of agent powder is 10-30:1.
(6) coating granulation is handled: using the biological powdered carbon and adhesive powder that are uniformly mixed in step (5) as coated fertilizer
A part of steam for being passed through in roller pelletizer, while being passed through in step (3) carries out coating granulation processing to chemical fertilizer granule, obtains
To charcoal base coated fertilizer.
(7) steam turbine generates electricity: another part of the steam of the step (3) being passed through the steam turbine, generates electricity
Can, it can be used for generating electricity.
Embodiment 1: the agricultural-forestry biomass of the present embodiment is chosen for the corn stover of moisture content 20.3%, and the present invention utilizes agriculture
The method of woods biomass multi-production preparation oil, gas and charcoal base coat fertilizer, specifically includes following steps.
(1) precrushing is handled: corn stover being passed through second crushing device and carries out being crushed to 10cm or less.
(2) pyrolysis processing: broken corn stover is sent into heat accumulation type radiant tube revolving bed pyrolysis oven, is pyrolyzed
Processing, pyrolysis temperature are 500 DEG C, and pyrolysis time 50min obtains high-temperature oil gas and pyrolytic carbon；
(3) burning handle: the high-temperature oil gas is passed through oil gas direct-combustion boiler through delivery pipe and carries out burning processing, obtain steam and
Low-temperature flue gas (is lower than 150 DEG C), and described steam a part is passed into the roller pelletizer and carries out coating granulation processing, described low
Warm flue gas is passed through the quenching system and carries out cooling processing to pyrolytic carbon.
(4) quenching is handled: the pyrolytic carbon that the step (2) is obtained is sent into quenching system, using described in step (3)
Low-temperature flue gas cools down, and obtains charcoal.
(5) be crushed and mixing processing: by the charcoal via the first crushing device carry out break process to 100 mesh with
Under, biological powdered carbon is obtained, is passed through in batch mixer and carries out mixing processing with the adhesive powder of addition, wherein charcoal and bonding
The weight ratio of agent powder is 20:1.
(6) coating granulation is handled: using the biological powdered carbon and adhesive powder that are uniformly mixed in step (5) as coated fertilizer
A part of steam for being passed through in roller pelletizer, while being passed through in step (3) carries out coating granulation processing to chemical fertilizer granule,
In, the mass ratio of coated fertilizer and chemical fertilizer granule is 4:6, obtains the charcoal base coated fertilizer of partial size 3-6mm, mechanical strength
Greater than 10N.
(7) steam turbine generates electricity: another part of the steam of the step (3) being passed through the steam turbine, generates electricity
Can, it can be used for generating electricity.
Field experiment shows: in the case where guaranteeing yield, compared with conventional N P and K chemical fertilizer, and charcoal base coated fertilizer
The amount of application of 20%-30% N P and K can be reduced.
Inventors have found that according to the present invention prepare oil, gas and charcoal base coat fertilizer using agricultural-forestry biomass Poly-generation
System and method, by agricultural-forestry biomass pyrolysis generate oil gas, by direct combustion producing steam, a part of steam generates electricity, separately
A part of steam is used for granulation of fertilizer, has recycled the energy in agricultural abandoned biomass；Simultaneously will pyrolysis generate pyrolytic carbon with
Chemical fertilizer is combined production charcoal base coat fertilizer, has not only realized the straw-returning of agricultural-forestry biomass, but also increase the soil organism
Content；Also, the present invention carries out coating to chemical fertilizer, utilizes charcoal using biological powdered carbon and binder as coated fertilizer
Adsorption capacity, realize the slow release effect of nutriment in chemical fertilizer, moreover it is possible to realize the effect of retain water and nutrients, improving
Learn the utilization rate of fertilizer；In addition, pyrolysis furnace high-temperature anoxybiotic environment of the present invention, pyrolysis devolatilization gas and high-temperature flue gas completely cut off,
Reduce mixing secondary pollution；And in pyrolytic process, the opposite material bed of material is static, is not pressurized, does not stir, and radiates tube fluid
It is completely isolated with burner hearth is reacted, it avoids and leads to the problem of flying dust.
In the present invention unless specifically defined or limited otherwise, the terms such as term " connected ", " connection " should do broad sense reason
Solution, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connection, be also possible to electricity
Connection；It can be directly connected, the connection inside two elements or two can also be can be indirectly connected through an intermediary
The interaction relationship of element.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant, at the same time, for those skilled in the art, the think of according to the application
Think, there will be changes in the specific implementation manner and application range.
Claims (10)
1. a kind of system for preparing oil, gas and charcoal base coat fertilizer using agricultural-forestry biomass Poly-generation, which is characterized in that including accumulation of heat
Formula radiant tube revolving bed pyrolysis oven, oil gas direct-combustion boiler, quenching system, the first crushing device, batch mixer and roller pelletizer,
In,
The heat accumulation type radiant tube revolving bed pyrolysis oven obtains high-temperature oil gas and pyrolysis for carrying out pyrolysis processing to biomass
Charcoal；
The oil gas direct-combustion boiler is exported with the high-temperature oil gas of the heat accumulation type radiant tube revolving bed pyrolysis oven and is connected, and being used for will
High-temperature oil gas carries out burning processing, obtains steam and low-temperature flue gas；
The quenching system, feed inlet are connected with the discharge port of the heat accumulation type radiant tube revolving bed pyrolysis oven, and flue gas enters
Mouth is connected with the exhanst gas outlet of the oil gas direct-combustion boiler, is cooled down using low-temperature flue gas to pyrolytic carbon, obtains charcoal；
First crushing device, feed inlet is connected with the discharge port of the quenching system, for charcoal to be crushed
Processing；
The batch mixer, feed inlet are connected with the discharge port of first crushing device, for by broken charcoal with
Adhesive powder carries out mixing processing together；
The roller pelletizer, feed inlet are connected with the discharge port of the batch mixer, steam inlet and the oil gas direct combustion
The steam (vapor) outlet of boiler is connected, and for using the charcoal being uniformly mixed and binder as coated fertilizer, while being passed through steam, right
Chemical fertilizer granule carries out coating processing, obtains charcoal base coat fertilizer.
2. a kind of system for preparing oil, gas and charcoal base coat fertilizer using agricultural-forestry biomass Poly-generation as described in claim 1,
It is characterized in that, the heat accumulation type radiant tube revolving bed pyrolysis oven is divided into according to different temperatures along rotary hearth furnace bottom direction of rotation
Dry section, pyrolysis zone, the temperature of the dry section are set as 100-200 DEG C, and the temperature of the pyrolysis zone is set as 400 DEG C -700 DEG C.
3. a kind of system for preparing oil, gas and charcoal base coat fertilizer using agricultural-forestry biomass Poly-generation as claimed in claim 2,
It is characterized in that, the furnace roof position of the pyrolysis zone is arranged in the high-temperature oil gas outlet of the heat accumulation type radiant tube revolving bed pyrolysis oven
It sets.
4. a kind of system for preparing oil, gas and charcoal base coat fertilizer using agricultural-forestry biomass Poly-generation as described in claim 1,
It is characterized in that, further includes double helix discharging machine, be arranged at the discharging of the heat accumulation type radiant tube revolving bed pyrolysis oven.
5. a kind of system for preparing oil, gas and charcoal base coat fertilizer using agricultural-forestry biomass Poly-generation as described in claim 1,
It is characterized in that, further includes the second crushing device, connect with the feed inlet of the heat accumulation type radiant tube revolving bed pyrolysis oven, being used for will
Agricultural-forestry biomass carries out break process.
6. a kind of system for preparing oil, gas and charcoal base coat fertilizer using agricultural-forestry biomass Poly-generation as described in claim 1,
It is characterized in that, further includes steam turbine, connect with the steam (vapor) outlet of the oil gas direct-combustion boiler, for steam to generate electricity.
7. a kind of method produced using the system of any of claims 1-6, which is characterized in that including following
Step:
(1) pyrolysis processing: agricultural-forestry biomass is sent into heat accumulation type radiant tube revolving bed pyrolysis oven, is carried out pyrolysis processing, is obtained
High-temperature oil gas and pyrolytic carbon；
(2) burning is handled: the high-temperature oil gas being passed through oil gas direct-combustion boiler and carries out burning processing, obtains steam and low temperature cigarette
Gas；
(3) quenching is handled: the pyrolytic carbon is sent into quenching system, is cooled down using the low-temperature flue gas in step (2),
Obtain charcoal；
(4) be crushed mixing processing: by the charcoal via the first crushing device carry out break process after, together with binder into
Enter and carries out mixing processing in batch mixer；
(5) coating granulation is handled: the charcoal being uniformly mixed in step (4) being passed through roller as coated fertilizer with binder and is made
In grain machine, while the steam being passed through in step (2), coating processing is carried out to chemical fertilizer granule, obtains charcoal base coat fertilizer.
8. the method for claim 7, which is characterized in that the specific work process of burning processing in step (2): the height
Warm oil gas is passed through oil gas direct-combustion boiler and carries out burning processing, obtains steam and low-temperature flue gas；The steam is passed into the roller
Pelletizer carries out coating processing, and the low-temperature flue gas enters the quenching system and carries out cooling processing to pyrolytic carbon, obtains biology
Charcoal.
9. the method for claim 7, which is characterized in that be crushed the specific work process for mixing processing in step (4): will
Charcoal is crushed to 100 mesh hereinafter, and adding binder progress mixed processing.
10. the method for claim 7, which is characterized in that the weight ratio of the charcoal and the binder is 10-
30:1.
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| CN111333461A (en) * | 2020-03-03 | 2020-06-26 | 东南大学 | Method for utilizing biomass-based fertilizer slow-release and controlled-release material based on agricultural park and special equipment thereof |
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