CN206279102U - The system that a kind of utilization straw prepares biomass carbon base urea fertilizer - Google Patents
The system that a kind of utilization straw prepares biomass carbon base urea fertilizer Download PDFInfo
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- CN206279102U CN206279102U CN201621357369.9U CN201621357369U CN206279102U CN 206279102 U CN206279102 U CN 206279102U CN 201621357369 U CN201621357369 U CN 201621357369U CN 206279102 U CN206279102 U CN 206279102U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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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
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Abstract
The utility model relates to the use of the system that straw prepares biomass carbon base urea fertilizer.The straw raw material outlet of feeding feed arrangement is connected with the charging aperture of revolving bed pyrolysis oven in the system, revolving bed pyrolysis oven is ring packing structure, successively including being provided with the infrared heating zones of infrared radiation heating pipe, being provided with the gas heating area of regenerative gas radiant tube；The biomass carbon outlet of revolving bed pyrolysis oven is connected with the biomass carbon entrance of blending bunker；The mixture inlet of granulating disc is connected with the mixture outlet of blending bunker；The particulate mixtures entrance of drying unit is connected with the particulate mixtures outlet of granulating disc；The drying composite entrance of packing apparatus is connected with the drying composite outlet of drying unit.System of the present utility model is easy to operate, and stable equipment operation reliability, processing procedure clean energy-saving, the thermal efficiency is high, and operating cost is low, and product quality is excellent, and economic benefit is obvious.
Description
Technical field
The utility model is related to field of solid waste treatment, and in particular to prepare charcoal base urea fertilizer using straw
System.
Background technology
Biomass carbon is under hypoxemia or oxygen-free environment, by Pintsch process by the product of plant carbide, it has also become in recent years
Carry out the focus of the research fields such as environment, agricultural, energy concern.Biomass carbon is biological production of energy, soil improvement, fertilizer wound
Newly, solution is proposed the problems such as reduction of greenhouse gas discharge, the abandoned biomass utilization of resources.The research of biomass carbon is come to Asia
The understanding of the inferior river valley middle part black earth of horse, contains a large amount of biomass carbons, than the fertilizer for not containing biomass carbon soil nearby in soil
Li Genggao, this phenomenon causes whole world scientist to biomass carbon in the aspect application such as soil improvement and GHG emissions mitigation
Concern.The nineties middle and later periods in last century, the research for preparing biomass carbon using modern pyrolytic technique is carried out.Foreign scholar's pin
Pyrolysis preparation, self property to biomass carbon and chemical property, soil physical properties, the influence of microorganism to soil etc. are entered
Go numerous studies, and achieve corresponding achievement.Application study of the China to biomass carbon in different field also takes much count of, but
Slow release characteristic on it to fertilizer was studied also in the starting stage.
Whole world stalk resource very abundant, annual production is at 3,000,000,000 tons or so.And China is large agricultural country, crops straw
Quantity is very huge, and huge number.According to investigation statisticses in 2003, straw total amount up to 7.94 hundred million tons or so, and with annual
0.13 hundred million tons of speed increases.Have the following disadvantages simultaneously, plant equipment cost mistake during collection, transport, the utilization of straw
Height, industrial chain is shorter, lacks technical support, people's cognitive presence mistaken ideas etc., causes the utilization rate of crops straw not high.Burn
Process contamination air ambient, is detrimental to health, and easily triggers fire.Also, burning straw causes surface temperature drastically to raise,
The beneficial microbe that can directly burn to death, scald in dead soil earth, influence crop absorbs soil nutrient.
Pyrolytic technique provides brand-new approach to solve straw Utilizing question.Straw is carried out into pyrolysis processing, can be obtained
The bio oil or chemicals of high added value, biomass carbon is prepared into fertilizer can improve soil fertility.The technology can improve rice
The utilization and management of grass, help to solve straw the environmental problem such as arbitrarily to throw aside, burn.
Prior art discloses straw biomass carbon base urea and preparation method thereof.The method is characterized in that straw is high
Anneal crack solution, obtains straw biomass carbon and imflammable gas, and by urea raw material and straw biomass carbon mixed melting, granulation,
Screened after being cooled down under negative pressure, coating is carried out to the pellet after screening, packed, straw biomass carbon base urea is obtained.But,
The direct Pintsch process of straw of crushing, can be mingled with a large amount of flying dusts in pyrolysis gas, need to carry out dust removal process, increase cost.Anneal crack high
A large amount of pyrolkigneous liquid that solution preocess is produced, back segment is entered with pyrolysis gas, can reduce the quality and calorific value of pyrolysis gas, and to burning
Device has certain corrosivity.The catalyst for cracking added during Pintsch process, influences pyrolytic carbon and charcoal base urea fertilizer
Quality, and increase raw material processing cost.In addition, the straw volume density crushed is very small, the volume density of catalyst than larger,
Both differences in shape are very big, it is difficult to it is well mixed, so as to influence catalytic efficiency.
Utility model content
The utility model aims to provide the system that a kind of utilization straw prepares biomass carbon base urea fertilizer.The system is easily grasped
Make, stable equipment operation reliability.Processing procedure clean energy-saving, non-pollutant discharge.The whole system thermal efficiency is high, operating cost
Low, product quality is excellent, and economic benefit is obvious.
The utility model discloses the system that a kind of utilization straw prepares biomass carbon base urea fertilizer, it is characterised in that
The system includes material pit and the feeding feed arrangement, revolving bed pyrolysis oven, blending bunker, the disc granulation that are sequentially connected
Machine, drying unit, packing apparatus；
The material pit is used to store straw raw material；
There is the feeding feed arrangement straw raw material entrance, straw raw material to export, and the straw is by grab bucket by described
Material pit is transported in the feeding feed arrangement；
There is the revolving bed pyrolysis oven charging aperture and biomass carbon to export, and material-homogenating device is provided with the charging aperture；Institute
Charging aperture is stated to be connected with the straw raw material outlet of the feeding feed arrangement；
The revolving bed pyrolysis oven is ring packing structure, successively including being provided with the infrared heating of infrared radiation heating pipe
The discharge end of area, the gas heating area for being provided with regenerative gas radiant tube, also, the infrared heating zones and the material-homogenating device
Communicate；
The blending bunker has biomass carbon entrance, binding agent entrance, urea fertilizer entrance, mixture outlet；It is described
Biomass carbon entrance is connected with the biomass carbon outlet of the revolving bed pyrolysis oven by drawing mechanism；
There are the granulating disc mixture inlet, particulate mixtures to export；The mixture inlet mixes with described
The mixture outlet connection of feed bin；
There is the drying unit particulate mixtures entrance, drying composite to export；The particulate mixtures entrance and institute
The particulate mixtures outlet for stating granulating disc is connected by belt conveyor；
The packing apparatus has drying composite entrance, product exit；The drying composite entrance and the drying
The drying composite outlet connection of device.
In above-mentioned system, also including pyrolysis oil air cooling device, the pyrolysis oil air cooling device has pyrolysis oil gas
Entrance, profit outlet, pyrolysis gas outlet, the pyrolysis oil gas entrance connect with the pyrolysis oil gas vent in the revolving bed pyrolysis oven
Connect, the pyrolysis gas outlet is connected with the regenerative gas radiant tube.
In above-mentioned system, also including oily-water seperating equipment, there is the oily-water seperating equipment profit entrance, pyrolysis oil to go out
Mouth, pyrolkigneous liquid outlet；The profit entrance is connected with the profit outlet of the pyrolysis oil air cooling device.
In above-mentioned system, also including chimney emission device, with smoke inlet, exhanst gas outlet up to standard；The flue gas enters
Mouth is connected with the exhanst gas outlet of the revolving bed pyrolysis oven.
Preferably, the lower end of the feeding feed arrangement is provided with material metering device, for measuring the straw raw material
Transporting velocity.
Preferably, in the infrared heating zones of the revolving bed pyrolysis oven, set between every two infrared radiation heating pipes
Stirrer is equipped with, the stirrer is used to stir the straw raw material, promotes the volatilization of moisture.
Further, in the granulating disc, the mixture inlet is located at granulating disc top, described granular mixed
Compound outlet is located at granulating disc bottom, and disk top setting sprinkler head wherein.
The utility model can realize the pyrolysis processing of straw raw material using revolving bed pyrolysis oven, obtain the heat of high additive value
Solution oil and pyrolkigneous liquid.In pyrolytic process, straw raw material is static with respect to flitch, it is to avoid produce flying dust, without dedusting, and ensures pyrolysis
The quality of oil and pyrolysis gas.Directly using pyrolysis oil as Product recycling, without adding catalyst, catalyst preparation is on the one hand reduced
Cost, another side retains the quality of biomass carbon itself.Regenerative gas radiant tube discharge flue gas not with pyrolysis hydrocarbons contact,
Substantially reduce postorder processing cost.
The utility model selects infra-red radiation, than the heat flow density that heat convection provides up to more than 70 times.In revolving bed
The feed inlet end of pyrolysis oven sets up infrared radiation heating pipe, can substantially reduce the energy consumption in pyrolytic process, while when shortening pyrolysis
Between, improve the disposal ability of revolving bed pyrolysis oven.
Brief description of the drawings
Fig. 1 is the system schematic that the utility model prepares biomass carbon base urea fertilizer using straw.
The flow for preparing biomass carbon base urea fertilizer using the system shown in Fig. 1 in Fig. 2 the utility model embodiments is shown
It is intended to.
Reference in accompanying drawing is as follows：
1st, material pit；2nd, feeding feed arrangement；3rd, revolving bed pyrolysis oven；4th, blending bunker；5th, granulating disc；6th, dry
Device；7th, packing apparatus；8th, pyrolysis oil air cooling device；9th, oily-water seperating equipment；10th, chimney emission device.
Specific embodiment
Below in conjunction with drawings and Examples, specific embodiment of the present utility model is described in more details, with
Just scheme of the present utility model and the advantage of its various aspects be better understood when.However, specific implementations described below
Mode and embodiment are only descriptive purposes, rather than to limitation of the present utility model.
As shown in figure 1, the system schematic of biomass carbon base urea fertilizer is prepared using straw for the utility model.This is
System includes material pit 1, feeding feed arrangement 2, revolving bed pyrolysis oven 3, blending bunker 4, granulating disc 5, drying unit 6, beats
Bag apparatus 7, pyrolysis oil air cooling device 8, oily-water seperating equipment 9, chimney emission device 10.Wherein, the function of each device and company
Connect relation as follows：
Material pit 1 is used to store pretreated straw raw material, and straw raw material therein can be transported to feeding by grab bucket
In feed arrangement 2.
Feeding feed arrangement 2 is provided with sealing device, for the straw raw material feeding revolving bed heat that will be transported by material pit 1
In solution stove 3, exported with straw raw material entrance, straw raw material.Its lower end is provided with material metering device, for measuring straw raw material
Transporting velocity.
Revolving bed pyrolysis oven 3 is ring packing structure, and burner hearth is internally provided with distribution device, heater and stirring dress
Put.The feed inlet end of revolving bed pyrolysis oven 3 is provided with material-homogenating device, straw raw material revolving bed pyrolysis oven 3 can be evenly arranged in
Flitch on.
Revolving bed pyrolysis oven 3 includes infrared heating zones, gas heating area successively.Wherein, infrared heating zones and material-homogenating device
Discharge end is communicated, and is provided with 2~4 infrared radiation heating pipes, and infrared radiation heating pipe is arranged on the top of flitch, every two
Stirrer is provided between root infrared radiation heating pipe, for stirring straw raw material, promotes the volatilization of moisture, and set at top
There is moisture introduction pipe.Many accumulation of heats are provided between the discharging opening of last root infrared radiation heating pipe to revolving bed pyrolysis oven 3
Formula gas fired radiant tubes, further heats to the straw raw material on flitch.In the utility model, not limit infrared radiation transmission heating tube and
The mode of heating and quantity of regenerative gas radiant tube.
Revolving bed pyrolysis oven 3 be used for pyrolysis processing is carried out to straw raw material, can obtain biomass carbon, its have charging aperture and
Biomass carbon is exported, and top is provided with pyrolysis oil gas vent.Wherein, charging aperture is exported with the straw raw material of feeding feed arrangement 2
Connection.
Blending bunker 4 be used for mixing biomass charcoal and urea fertilizer, can obtain mixture, its have biomass carbon entrance,
Binding agent entrance, urea fertilizer entrance, mixture outlet.Wherein, the biomass carbon of biomass carbon entrance and revolving bed pyrolysis oven 3
Outlet is connected by drawing mechanism.
Granulating disc 5 is used for the granulation of mixture, can obtain particulate mixtures, and it has mixture inlet, granular mixed
Compound is exported.Wherein, mixture inlet is connected with the mixture outlet of blending bunker 4.Also, mixture inlet is made positioned at disk
The top of grain machine 5, particulate mixtures outlet is located at bottom, and disk top setting sprinkler head wherein.
Drying unit 6 is used for the drying of particulate mixtures, and there is particulate mixtures entrance, drying composite to export for it.Its
In, particulate mixtures entrance is connected with the particulate mixtures outlet of granulating disc 5 by belt conveyor.
Packing apparatus 7 is used to carry out packing treatment to dried mixture, can obtain final product, and it has dry mixed
Compound entrance, product exit.Wherein, drying composite entrance is connected with the drying composite outlet of drying unit 6.
Pyrolysis oil air cooling device 8 is used to cool down the pyrolysis oil gas of straw raw material pyrolytic process generation, with pyrolysis oil gas
Entrance, profit outlet, pyrolysis gas outlet.Wherein, pyrolysis oil gas entrance is connected with the pyrolysis oil gas vent of revolving bed pyrolysis oven 3,
Pyrolysis gas outlet is connected with the regenerative gas radiant tube set in revolving bed pyrolysis oven 3.
Oily-water seperating equipment 9 is used for the profit produced after the cooling of separation pyrolyzing oil gas, and there is profit entrance, pyrolysis oil to go out for it
Mouth, pyrolkigneous liquid outlet.Wherein, profit entrance is connected with the profit outlet of pyrolysis oil air cooling device 8.
Chimney emission device 10 be used for purified treatment flue gas, discharged after reaching discharge standard, its have smoke inlet,
Exhanst gas outlet up to standard.Wherein, smoke inlet is connected with the exhanst gas outlet of revolving bed pyrolysis oven 3.
As shown in Fig. 2 for the system that the utility model embodiment is based on shown in Fig. 1 prepares biomass carbon base urea fertilizer
Method, including step：
(1) straw pretreatment
The step is used to pre-process straw, finally gives the straw original for meeting the feed needs of revolving bed pyrolysis oven 3
Material, it may include one or more below.
It is broken：The straw that will be sent is crushed by two-stage breaker, and the particle for being crushed to the ㎜ of particle diameter ＜ 50 is standby.
Drying and dehydrating：Height according to straw itself moisture content chooses whether to need the preprocessing process.When straw is aqueous
During rate >=20wt% (wt% is mass percent), it is 15~20wt% to be baked to moisture content.
Briquetting：By the ㎜ of particle diameter ＜ 50, the straw briquetting that moisture content is 15~20wt%.The size of briquetting is also dependent on existing
Mould depending on.
The step optional step, revolving bed pyrolysis oven 3 can be less than directly being carried out containing rice grass for 85wt% to moisture content
Treatment.
(2) storage and conveying of straw raw material
The pretreated straw raw material that will be obtained is transported to material pit 1 and stacks 1~3 day.Then, by grabbing bucket storing
Straw raw material in hole 1 is delivered in feeding feed arrangement 2.It is adjustable by controlling the material metering device of the lower end of feeding feed arrangement 2
Whole charging rate, so as to control the fabric thickness of the straw raw material in revolving bed pyrolysis oven 3.
(3) pyrolysis processing of straw
During straw raw material sent into revolving bed pyrolysis oven 3 by the feeding feed arrangement 2 with sealing device.At charging aperture
Be evenly arranged in straw raw material on flitch by the material-homogenating device of setting.Straw raw material is on flitch with the rotation of revolving bed pyrolysis oven 3
Infrared heating zones, gas heating area are passed sequentially through, biomass carbon is can obtain.
Wherein, the straw raw material thickness on flitch is 20~50 ㎜.The rotating speed of revolving bed pyrolysis oven 3 is set to 10~
40min/r。
In infrared heating zones, infrared radiation heating pipe is 50~80 with the vertical range of straw raw material upper surface on flitch
㎜.Stirrer lower edge is 5~10 ㎜ with the vertical range on flitch surface, for stirring for straw raw material, promotes lower floor's straw
The volatilization of moisture after raw material intensification.
Radiated infrared optical wavelength is 1~30 μm, and the IR wavelengths frequency is intrinsic with the wavelength of hydrone in straw raw material
Frequency is equal, so as to can quickly be only absorbed by the water, moisture temperature is able to quickly raise.Also, due to ultrared heat transfer not
Intermediate medium is needed, interior of articles can be directly penetrating, realize the moisture temperature of flitch top layer and internal layer straw raw material simultaneously
Raise.
Infra-red radiation provides up to more than 70 times of heat flow density than heat convection.Therefore, entering in revolving bed pyrolysis oven 3
Infrared radiation heating pipe is set up at material mouth end, can substantially reduce the energy consumption in pyrolytic process, while shortening pyrolysis time, improves rotation
The disposal ability of bed pyrolysis oven 3.
In gas heating area, on regenerative gas radiant tube and flitch the vertical range of straw raw material upper surface for 50~
80 ㎜, the temperature of regenerative gas radiant tube is 650~700 DEG C, further for revolving bed pyrolysis oven 3 provides heat.
In revolving bed pyrolysis oven 3, whole pyrolytic process employs the mode of radiant heating.Due to radiation energy with radiation away from
From being inversely proportional, and need to avoid straw raw material from being contacted with radiant tube, equipment operation exception is caused, it is therefore preferable that radiant tube distance
The vertical range of straw raw material upper surface is controlled in 50~80mm.
After straw raw material sequentially passes through the pyrolysis processing in infrared heating zones and gas heating area, moisture therein and organic wave
Hair point is separated successively, can obtain biomass carbon.Wherein, the moisture for being produced in infrared heating zones pyrolytic process is drawn by moisture
Pipeline is drawn and is cooled down, used as the circulating and recovering moisture of the utility model system.
During the pyrolysis oil pneumatic transmission that straw raw material pyrolysis is produced enters pyrolysis oil air cooling device 8, it is condensed after can be pyrolyzed
Gas and profit.Then, will be burnt in the regenerative gas radiant tube of pyrolysis gas feeding revolving bed pyrolysis oven 3, for it is provided
Heat, is processed, qualified discharge in the flue gas feeding chimney emission device 10 after burning.Profit is sent into oily-water seperating equipment
It is separated to can obtain pyrolysis oil and pyrolkigneous liquid in 9.Wherein, part pyrolkigneous liquid is back in pyrolysis oil air cooling device 9, is passed through
Directly cooling is cooled down to pyrolysis oil gas indirectly for cooling and recirculated cooling water.In pyrolytic process, water is first from revolving bed pyrolysis
Isolated in stove 3, to pyrolysis oil gas cool down during, cooling water with pyrolysis oil gas mediate contact, so as to can obtain
The pyrolkigneous liquid of high-purity, improves product quality, and gained pyrolkigneous liquid can be directly as selling outside product.
(4) mixed processing of biomass carbon and urea fertilizer
The biomass carbon that above-mentioned steps are obtained is sent into blending bunker 4 by drawing mechanism, meanwhile, it is added thereto to bond
Agent and urea fertilizer are mixed, and can obtain mixture.
In the step, biomass carbon is 5 with the mass ratio of urea fertilizer：0.8~1.4.Binding agent selects carboxymethyl cellulose
Plain sodium or oxidized starch.The percentage that the addition of bonding agent accounts for mixture is 8~12wt%.
(5) granulation of mixture
The mixture that above-mentioned steps are obtained is sent into from the top of granulating disc 5, starts granulating disc 5, will wherein
The rotating speed of rotating disk is adjusted to 30r/min, and the angle of inclination of rotating disk is 45 °.Also, the sprinkler head above disk is opened, is sprayed into certain
The moisture of amount.The percentage for controlling moisture to account for mixture is 12~25wt%, carries out granulation treatment, can obtain particulate mixtures.
The particulate mixtures of shaping export output from the particulate mixtures of the lower section of granulating disc 5.
In the step, other any satisfaction granulations that the molding, granulating of mixture can select beyond granulating disc are required
Granulation Equipments.
(6) drying packing
During particulate mixtures are via belt conveyor feeding drying unit 6, dried at a temperature of 40~65 DEG C.Then, send
To enter packed in packing apparatus 7, obtain final product, i.e. biomass carbon base urea fertilizer.
Embodiment 1
30t rice straws are provided by Songzi, Hubei Province, moisture content is crushed to particle diameter between 17 ± 1.5wt% by two-stage
Briquetting is carried out after ＜ 30mm, briquetting obtains diameter of section for 30 ± 2mm, and length is the cylinder bar of 80 ± 20mm, as rice
Expect on grassland.
By in straw raw material feeding material pit, the straw raw material in material pit is then delivered into feeding by grabbing bucket and feeds dress
Put, straw raw material is entered in revolving bed pyrolysis oven by the feeding feed arrangement with sealing device.In the presence of material-homogenating device,
Straw raw material is evenly arranged on flitch, and fabric thickness is controlled in 23 ± 3mm.
Straw raw material sequentially passes through infrared heating zones, gas heating area with flitch, controls the rotating speed of revolving bed pyrolysis oven
It is 15 ± 5min/r.The vertical range of infrared radiation heating pipe, regenerative gas radiant tube apart from straw raw material upper surface is
50mm.Radiated infrared optical wavelength is 1~25 μm, and the moisture temperature in straw material is quickly raised, and the moisture on top layer quickly volatilizees, and
Drawn with the introduction pipe being arranged at the top of revolving bed pyrolysis oven.Under stirrer effect, lower floor's straw raw material is stirred, and is promoted
The volatilization of lower floor's moisture.
Then, straw raw material enters gas heating area.Now, the wherein moisture of more than 95wt% has volatilized.Heat accumulating type fires
The temperature of gas radiant tube is 670 ± 20 DEG C, and straw temperature continues to raise, and organic volatile matter and residual moisture are volatilized.It is infrared
Heating zone and gaseous product carries out cooling recovery respectively derived from gas heating area.
The biomass carbon for obtaining is sent into blending bunker by drawing mechanism, mixes with urea fertilizer and binding agent.It is raw
Material charcoal is 5 with the mass ratio of urea fertilizer：1.Binding agent selects sodium carboxymethylcellulose, addition to account for amount of the mixture
10wt%.
By in mixture feeding granulating disc, sprinkler head is opened, the moisture of penetrating accounts for the 15wt% of mixture, shaping
Particulate mixtures leave granulating disc from disk lower section, and drying unit is sent into by chain-linked conveyer, are dried at 40 DEG C.
The pyrolysis oil gas that straw raw material pyrolysis is produced is cooled down and water-oil separating, obtains pyrolysis oil and pyrolkigneous liquid product.
The pyrolysis gas that do not coagulate after oil gas cooling burn as the fuel gas supply of regenerative gas radiant tube, and the flue gas after burning passes through chimney
Fume extractor is discharged.
In above-described embodiment, 30t straw by obtained after treatment 2.4t pyrolysis oils, 5.4t be pyrolyzed water, 5.4t pyrolkigneous liquid and
14t biomass carbon base urea fertilizers.
Embodiment 2
The present embodiment uses system and method same as Example 1.Wherein, in revolving bed pyrolysis oven, straw raw material
Fabric thickness on flitch is controlled in 35 ± 2mm；The rotating speed of revolving bed pyrolysis oven is 20 ± 5min/r；Infrared radiation heating
The vertical range of pipe, regenerative gas radiant tube apart from straw raw material upper surface is 70mm；Radiated infrared optical wavelength is 1~30 μ
m；The temperature of regenerative gas radiant tube is 670 ± 10 DEG C.
Obtained biomass carbon is sent into blending bunker by drawing mechanism, mixes with urea fertilizer and binding agent.It is raw
Material charcoal is 5 with the mass ratio of urea fertilizer：0.8.Binding agent selects sodium carboxymethylcellulose, addition to account for amount of the mixture
8wt%.
By in mixture feeding granulating disc, sprinkler head is opened, the moisture of penetrating accounts for the 12wt% of mixture, shaping
Particulate mixtures leave granulating disc from disk lower section, and drying unit is sent into by belt conveyor, are dried at 50 DEG C.
In above-described embodiment, 30t straw by obtained after treatment 2.5t pyrolysis oils, 5.3t be pyrolyzed water, 5.6t pyrolkigneous liquid and
13.6t biomass carbon base urea fertilizers.
Embodiment 3
The present embodiment uses system and method same as Example 1.Wherein, in revolving bed pyrolysis oven, straw raw material
Fabric thickness on flitch is controlled in 45 ± 5mm；The rotating speed of revolving bed pyrolysis oven is 37 ± 3min/r；Infrared radiation heating
The vertical range of pipe, regenerative gas radiant tube apart from straw raw material upper surface is 80mm；Radiated infrared optical wavelength is 1~30 μ
m；The temperature of regenerative gas radiant tube is 690 ± 15 DEG C.
Obtained biomass carbon is sent into blending bunker by drawing mechanism, mixes with urea fertilizer and binding agent.It is raw
Material charcoal is 5 with the mass ratio of urea fertilizer：1.4.Binding agent selects oxidized starch, addition to account for amount of the mixture
12wt%.
By in mixture feeding granulating disc, sprinkler head is opened, the moisture of penetrating accounts for the 25wt% of mixture, shaping
Particulate mixtures leave granulating disc from disk lower section, and drying unit is sent into by belt conveyor, are dried at 65 DEG C.
In above-described embodiment, 30t straw by obtained after treatment 2.2t pyrolysis oils, 5.6t be pyrolyzed water, 5.1t pyrolkigneous liquid and
14.9t biomass carbon base urea fertilizers.
System of the present utility model can long-term smooth operation, equipment failure rate is extremely low.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example,
And not to the restriction of implementation method.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need and unable to be exhaustive to all of implementation method.And thus
Among the obvious change or variation amplified out are still in protection domain of the present utility model.
Claims (7)
1. the system that a kind of utilization straw prepares biomass carbon base urea fertilizer, it is characterised in that the system includes material pit
And feeding feed arrangement, revolving bed pyrolysis oven, blending bunker, granulating disc, drying unit, the packing dress being sequentially connected
Put；
The material pit is used to store straw raw material；
There is the feeding feed arrangement straw raw material entrance, straw raw material to export, and the straw is by grab bucket by the storing
Hole is transported in the feeding feed arrangement；
There is the revolving bed pyrolysis oven charging aperture and biomass carbon to export, and material-homogenating device is provided with the charging aperture；It is described enter
Material mouth is connected with the straw raw material outlet of the feeding feed arrangement；
The revolving bed pyrolysis oven be ring packing structure, successively including be provided with infrared radiation heating pipe infrared heating zones,
Be provided with the gas heating area of regenerative gas radiant tube, also, the infrared heating zones and the material-homogenating device discharge end phase
It is logical；
The blending bunker has biomass carbon entrance, binding agent entrance, urea fertilizer entrance, mixture outlet；The biology
Matter charcoal entrance is connected with the biomass carbon outlet of the revolving bed pyrolysis oven by drawing mechanism；
There are the granulating disc mixture inlet, particulate mixtures to export；The mixture inlet and the blending bunker
Mixture outlet connection；
There is the drying unit particulate mixtures entrance, drying composite to export；The particulate mixtures entrance and the circle
The particulate mixtures outlet of disk comminutor is connected by belt conveyor；
The packing apparatus has drying composite entrance, product exit；The drying composite entrance and the drying unit
Drying composite outlet connection.
2. system according to claim 1, it is characterised in that also including pyrolysis oil air cooling device, the pyrolysis oil gas
Cooling device has pyrolysis oil gas entrance, profit outlet, pyrolysis gas outlet, and the pyrolysis oil gas entrance is pyrolyzed with the revolving bed
Pyrolysis oil gas vent connection in stove, the pyrolysis gas outlet is connected with the regenerative gas radiant tube.
3. system according to claim 2, it is characterised in that also including oily-water seperating equipment, the oily-water seperating equipment
With profit entrance, pyrolysis oil export, pyrolkigneous liquid outlet；The profit entrance goes out with the profit of the pyrolysis oil air cooling device
Mouth connection.
4. system according to claim 1, it is characterised in that also including chimney emission device, with smoke inlet, up to standard
Exhanst gas outlet；The smoke inlet is connected with the exhanst gas outlet of the revolving bed pyrolysis oven.
5. system according to claim 1, it is characterised in that the lower end of the feeding feed arrangement is provided with material metering
Device, the transporting velocity for measuring the straw raw material.
6. system according to claim 1, it is characterised in that in the infrared heating zones of the revolving bed pyrolysis oven, every two
Stirrer is provided between infrared radiation heating pipe described in root, the stirrer is used to stir the straw raw material, promotes moisture
Volatilization.
7. system according to claim 1, it is characterised in that in the granulating disc, the mixture inlet is located at
Granulating disc top, the particulate mixtures outlet is located at granulating disc bottom, and disk top setting water wherein
Shower nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621357369.9U CN206279102U (en) | 2016-12-12 | 2016-12-12 | The system that a kind of utilization straw prepares biomass carbon base urea fertilizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095985A (en) * | 2018-08-22 | 2018-12-28 | 成都恩承科技股份有限公司 | Carbon-based fertilizer of a kind of oil gas field oil sludge anaerobic pyrolysis product carbonaceous and preparation method thereof |
| CN111256464A (en) * | 2020-04-05 | 2020-06-09 | 景津环保股份有限公司 | Modular feeding device of dryer |
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2016
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095985A (en) * | 2018-08-22 | 2018-12-28 | 成都恩承科技股份有限公司 | Carbon-based fertilizer of a kind of oil gas field oil sludge anaerobic pyrolysis product carbonaceous and preparation method thereof |
| CN111256464A (en) * | 2020-04-05 | 2020-06-09 | 景津环保股份有限公司 | Modular feeding device of dryer |
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Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu science and technology group Limited by Share Ltd Address before: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee before: Beijing Shenwu Environment Energy Technology Group Co., Ltd. |
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Effective date of registration: 20171026 Address after: 100080 room 5, building 5414, Shen Chang building, 51 Zhichun Road, Beijing, Haidian District Patentee after: Beijing source of agricultural carbon fertilizer technology Co., Ltd. Address before: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee before: Shenwu science and technology group Limited by Share Ltd |