CN107805507A - A kind of biomass carbonizing furnace smoke waste heat utilization system - Google Patents
A kind of biomass carbonizing furnace smoke waste heat utilization system Download PDFInfo
- Publication number
- CN107805507A CN107805507A CN201711020306.3A CN201711020306A CN107805507A CN 107805507 A CN107805507 A CN 107805507A CN 201711020306 A CN201711020306 A CN 201711020306A CN 107805507 A CN107805507 A CN 107805507A
- Authority
- CN
- China
- Prior art keywords
- smoke
- cooling tower
- retort
- flue gas
- carbonization chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B1/00—Retorts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B27/00—Arrangements for withdrawal of the distillation gases
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- 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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of biomass carbonizing furnace smoke waste heat utilization system, including retort, smoke eliminator, smoke cooling tower and decomposed fermenting cellar, retort, smoke eliminator and smoke cooling tower order are connected by flue, connected between smoke cooling tower and decomposed fermenting cellar by hot water return pipeline, biomass carbonizes in retort, caused flue gas enters in smoke cooling tower after smoke eliminator purifies for circulating water heating in smoke cooling tower inner conduit, recirculated water enters decomposed fermenting cellar by hot water return pipeline in smoke cooling tower inner conduit, heat is provided for the decomposed fermentation of feces of livestock and poultry.Compared with prior art, the present invention first combines retort and organic fertilizer production, high-temperature flue gas is produced using retort, using high-temperature flue gas it is circulating water heating by smoke cooling tower, recirculated water is set to reach the condition of suitable fermented bacterium growth, it is transported in quick organic fertilizer system, promotes the raising of organic fertilizer fermentation efficiency.
Description
Technical field
The present invention relates to a kind of biomass recycling use technical field, more particularly, to a kind of biomass carbonizing furnace cigarette
Gas afterheat utilizing system.
Background technology
China's biomass resource enriches, but due to lacking practicable processing and application technology, except small part is used as raising
It is most of directly to be burned in field beyond material, life fuel and industrial fuel, cause serious environmental pollution.In addition, with
The fast development of China's poultry industry, the unreasonable disposal of a large amount of feces of livestock and poultry bring serious harm to environment.
In the recycling field of stalk and feces of livestock and poultry, produced during traditional retort production charcoal, during charing
Raw a large amount of flue gases are directly discharged in air, and great harm is caused to environment, while are also a kind of waste of resource.
In addition, the decomposed fermenting and producing organic fertilizer of feces of livestock and poultry, there is the problem that decomposed period is grown, wherein temperature is to restrict fermented bacterium
One principal element of vigor.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of biomass carbonizing furnace
Smoke waste heat utilization system.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of biomass carbonizing furnace smoke waste heat utilization system, including retort, smoke eliminator, smoke cooling tower and corruption
Ripe fermenting cellar, described retort, smoke eliminator and smoke cooling tower order are connected by flue, described cigarette
Connected between air cooling tower and decomposed fermenting cellar by hot water return pipeline, biomass carbonizes in retort, caused flue gas
Enter after smoke eliminator purifies cold for circulating water heating in smoke cooling tower inner conduit, flue gas in smoke cooling tower
But recirculated water enters decomposed fermenting cellar by hot water return pipeline in tower inner conduit, and heat is provided for the decomposed fermentation of feces of livestock and poultry
Amount.
Described retort is downdraft fixed bed retort, and carbonization chamber, the top of carbonization chamber are provided with retort
With being respectively arranged below charging aperture and charcoal collection port, the air inlet and air outlet communicated with carbonization chamber is provided with retort,
The exhanst gas outlet connected with flue is set in the upper end of carbonization chamber, lighting-up tuyere is provided with the side of carbonization chamber.
Described air inlet is connected to the lower end of carbonization chamber, and described air outlet is connected to the upper end of carbonization chamber, and described
Air inlet and air outlet be located at the opposite side of carbonization chamber.
Connection spray equipment inside described carbonization chamber.Described spray equipment is scattered in carbonization chamber in circular conical surface, is used
In charing room temperature lowering.
Pretreated biomass-stalk fuel is added in charging aperture first, then air inlet provides oxygen, lights and helps
Carbonization chamber is sent into by lighting-up tuyere after combustion agent, stalk is reached primary combustion state.It is determined that burning indoor temperature reaches default temperature
After degree, charging aperture is closed, reduces the exhausting amount of air outlet, makes stalk " smoldering " in carbonization chamber.If the default temperature of thermo-field thoery
Degree, by spray equipment, makes charing room temperature lowering.The charcoal of gained is collected by charcoal collection port after charing.
The smoke inlet of described smoke eliminator is located at the lower section of multiple filtration net, and exhanst gas outlet is located at multilayer mistake
Between filter screen and blower fan.
Described smoke eliminator upper end is the multiple filtration net for retaining grit and tar, and bottom is for arranging
Go out the rotatable propeller of tar, the blower fan of the quick flowing for promoting flue gas is just provided with the net in multiple filtration.Flue gas is net
The intake method of use " bottom in and top out " is put in makeup, and flue gas enters in smoke eliminator from bottom, close due to high-temperature flue gas
Spend relatively low, and to smoke eliminator top movements in the presence of external pressure, flue gas is in the multilayer by being made up of activated carbon etc.
During screen pack, grit and tar are trapped, and tar condenses under cryogenic, are gathered in the bottom of smoke eliminator, are being revolved
In the presence of turning propeller, tar is slowly extruded.
Described smoke cooling tower inner conduit is arranged in the shape of a spiral, increases the contact area with flue gas, described decomposed hair
The fermentation indoor water pipe arranged in the shape of a spiral, described smoke cooling tower inner conduit and fermentation indoor water pipe are provided with ferment room
Between connect to form circulation loop by hot water return pipeline.Wherein, smoke cooling tower is an adjustable cooling device,
Can be according to the different manually adjustable smoke cooling tower inner conduit leaving water temperatures of the temperature of fermented bacterium suitable growth.
Described smoke cooling tower is provided with the fume emission mouth for discharging flue gas, is purified by smoke eliminator
It is that low-temperature flue gas is by flue gas in smoke cooling tower inner conduit after circulating water heating that clean flue gas, which enters in smoke cooling tower, afterwards
Floss hole is discharged.Described fume emission mouth is connected by flue gas recirculation pipe with the air inlet of retort, and low-temperature flue gas is back to
Air intake is used as in retort, realizes recycling for flue gas.
Compared with prior art, the present invention first combines retort and organic fertilizer production, is produced using retort
Raw high-temperature flue gas, using high-temperature flue gas it is circulating water heating by smoke cooling tower, recirculated water is reached suitable fermented bacterium and give birth to
Long condition, it is transported in quick organic fertilizer system, promotes the raising of organic fertilizer fermentation efficiency.Specifically, the present invention has
Following innovative point：
(1) solve the process problem of traditional retort carbonization process high temperature flue gas, avoid heat of the high-temperature flue gas to environment
Pollute, and use high-temperature flue gas to realize recycling for resource in organic fertilizer production system.
(2) present invention solves the problems, such as traditional organic fertilizer production because heating rate causes low production efficiency slowly, utilizes
High-temperature flue gas caused by retort heats to organic fertilizer production environment, is effectively shortened the fermentation time of feces of livestock and poultry,
Improve the production efficiency of organic fertilizer.
(3) present invention is directed to the characteristics of rural households' agriculture and forestry organic waste material amount is few, species is more, raw material complexity and designed, and has
Simply, the characteristics of extensive, practical.Charing on the spot and the linkage of feces of livestock and poultry Rapid Fermentation suitable for agriculture and forestry organic waste material are given birth to
Production, realize that the recycling of abandoned biomass recycles.
Brief description of the drawings
Fig. 1 is the system global structure schematic diagram of the present invention.
Fig. 2 is the structural representation of retort.
Fig. 3 is smoke eliminator structural representation.
Fig. 4 is flue and hot water return pipeline layout drawing.
Wherein, 1 is retort, and 2 be flue, and 3 be smoke eliminator, and 4 be smoke cooling tower, and 5 be decomposed fermentation
Room, 6 be air inlet, and 7 be charging aperture, and 8 be exhanst gas outlet, and 9 be air outlet, and 10 be spray equipment, and 11 be lighting-up tuyere, and 12 be charcoal
Change room, 13 be charcoal collection port, and 14 be blower fan, and 15 be multiple filtration net, and 16 be rotatable propeller, and 17 be fume emission mouth, and 18 are
Hot water return pipeline, 19 be fermentation indoor water pipe, and 20 be smoke cooling tower inner conduit.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of biomass carbonizing furnace smoke waste heat utilization system, as shown in figure 1, including retort 1, smoke eliminator
3rd, smoke cooling tower 4 and decomposed fermenting cellar 5, retort 1, smoke eliminator 3 and the order of smoke cooling tower 4 pass through fume pipe
Road 2 connects, and is connected between smoke cooling tower 4 and decomposed fermenting cellar 5 by hot water return pipeline 18, biomass is in retort 1
Charing, it is smoke cooling tower inner conduit 20 that caused flue gas, which enters after the purification of smoke eliminator 3 in smoke cooling tower 4,
Interior circulating water heating, recirculated water enters decomposed fermenting cellar 5 by hot water return pipeline 18 in smoke cooling tower inner conduit 20, is
The decomposed fermentation of feces of livestock and poultry provides heat.
As shown in Fig. 2 retort 1 is downdraft fixed bed retort, carbonization chamber 12 is provided with retort 1, is carbonized
The top of room 12 is provided with retort 1 and communicated with carbonization chamber 12 with being respectively arranged below charging aperture 7 and charcoal collection port 13
Air inlet 6 and air outlet 9, the exhanst gas outlet 8 connected with flue 2 is set in the upper end of carbonization chamber 12, in carbonization chamber 12
Side be provided with lighting-up tuyere 11.Air inlet 6 is connected to the lower end of carbonization chamber 12, and air outlet 9 is connected to the upper end of carbonization chamber 12,
And air inlet 6 is located at the opposite side of carbonization chamber 12 with air outlet 9.The inside of carbonization chamber 12 connection spray equipment 10.Spray equipment 10
It is scattered in circular conical surface in carbonization chamber 12, for cooling in carbonization chamber 12.
Pretreated biomass-stalk fuel is added in charging aperture 7 first, then air inlet 6 provides oxygen, lights
Carbonization chamber 12 is sent into by lighting-up tuyere 11 after combustion adjuvant, stalk is reached primary combustion state.It is determined that burning indoor temperature reaches
After preset temperature, charging aperture 7 is closed, reduces the exhausting amount of air outlet 9, makes stalk " smoldering " in carbonization chamber 12.If temperature surpasses
High preset temperature, by spray equipment 10, make to cool in carbonization chamber 12.The charcoal of gained is received by charcoal collection port 13 after charing
Collection.
As shown in figure 3, the smoke inlet of smoke eliminator 3 is located at the lower section of multiple filtration net 15, exhanst gas outlet is located at
Between multiple filtration net 15 and blower fan 14.The upper end of smoke eliminator 3 is the multiple filtration net for retaining grit and tar
15, bottom is the rotatable propeller 16 for discharging tar, is provided with above multiple filtration net 15 for promoting the fast of flue gas
The blower fan 14 of speed flowing.Smoke eliminator 3 uses the intake method of " bottom in and top out ", and flue gas enters gas cleaning from bottom
In device 3, because the density of high-temperature flue gas is relatively low, and to the top movements of smoke eliminator 3, flue gas in the presence of external pressure
In the multiple filtration net 15 by being made up of activated carbon etc., grit and tar are trapped, and tar condenses under cryogenic,
The bottom of smoke eliminator 3 is gathered in, in the presence of rotatable propeller 16, tar is slowly extruded.
As shown in figure 4, smoke cooling tower inner conduit 20 is arranged in the shape of a spiral, and increase and the contact area of flue gas, decomposed hair
The fermentation indoor water pipe 19 arranged in the shape of a spiral, smoke cooling tower inner conduit 20 and fermentation indoor water pipe 19 are provided with ferment room 5
Between by hot water return pipeline 18 connection form circulation loop.Wherein, smoke cooling tower 4 is an adjustable cooling dress
Put, can be according to the different manually adjustable leaving water temperatures of smoke cooling tower inner conduit 20 of the temperature of fermented bacterium suitable growth.
Smoke cooling tower 4 is provided with the fume emission mouth 17 for discharging flue gas, the clean cigarette after the purification of smoke eliminator 3
It is that low-temperature flue gas is by fume emission mouth 17 in smoke cooling tower inner conduit 20 after circulating water heating that gas, which enters in smoke cooling tower 4,
Discharge.Fume emission mouth 17 is connected by flue gas recirculation pipe with the air inlet of retort 1, and low-temperature flue gas is back in retort 1
As air intake, recycling for flue gas is realized.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using hair
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-mentioned implementation
Example, for those skilled in the art according to the announcement of the present invention, not departing from improvement that scope made and modification all should be
Within protection scope of the present invention.
Claims (10)
1. a kind of biomass carbonizing furnace smoke waste heat utilization system, it is characterised in that including retort (1), smoke eliminator
(3), smoke cooling tower (4) and decomposed fermenting cellar (5), described retort (1), smoke eliminator (3) and smoke cooling tower
(4) sequentially connected by flue (2), returned between described smoke cooling tower (4) and decomposed fermenting cellar (5) by hot water
Flow tube road (18) connects, and biomass carbonizes in retort (1), and caused flue gas purifies laggard by smoke eliminator (3)
It is smoke cooling tower inner conduit (20) interior circulating water heating to enter in smoke cooling tower (4), is followed in smoke cooling tower inner conduit (20)
Ring water enters decomposed fermenting cellar (5) by hot water return pipeline (18), and heat is provided for decomposed fermentation.
2. a kind of biomass carbonizing furnace smoke waste heat utilization system according to claim 1, it is characterised in that described
Retort (1) is downdraft fixed bed retort, and carbonization chamber (12), the top of carbonization chamber (12) are provided with retort (1)
With being respectively arranged below charging aperture (7) and charcoal collection port (13), it is provided with what is communicated with carbonization chamber (12) on retort (1)
Air inlet (6) and air outlet (9), the exhanst gas outlet (8) connected with flue (2) is set in the upper end of carbonization chamber (12),
The side of carbonization chamber (12) is provided with lighting-up tuyere (11).
3. a kind of biomass carbonizing furnace smoke waste heat utilization system according to claim 2, it is characterised in that described
Air inlet (6) is connected to the lower end of carbonization chamber (12), and described air outlet (9) is connected to the upper end of carbonization chamber (12), and described
Air inlet (6) and air outlet (9) be located at the opposite side of carbonization chamber (12).
4. a kind of biomass carbonizing furnace smoke waste heat utilization system according to claim 2, it is characterised in that described
Connection spray equipment (10) inside carbonization chamber (12).
5. a kind of biomass carbonizing furnace smoke waste heat utilization system according to claim 4, it is characterised in that described
Spray equipment (10) is scattered in carbonization chamber (12) in circular conical surface, for cooling in carbonization chamber (12).
6. a kind of biomass carbonizing furnace smoke waste heat utilization system according to claim 1, it is characterised in that described
Smoke eliminator (3) upper end is the multiple filtration net (15) for retaining grit and tar, and bottom is for discharging tar
Rotatable propeller (16), the blower fan (14) of the quick flowing for promoting flue gas is provided with above multiple filtration net (15).
7. a kind of biomass carbonizing furnace smoke waste heat utilization system according to claim 6, it is characterised in that described
The smoke inlet of smoke eliminator (3) is located at the lower section of multiple filtration net (15), and exhanst gas outlet is located at multiple filtration net (15)
Between blower fan (14).
8. a kind of biomass carbonizing furnace smoke waste heat utilization system according to claim 1, it is characterised in that described
Smoke cooling tower inner conduit (20) is arranged in the shape of a spiral, and the hair arranged in the shape of a spiral is provided with described decomposed fermenting cellar (5)
Ferment indoor water pipe (19), pass through hot water return between described smoke cooling tower inner conduit (20) and fermentation indoor water pipe (19)
Pipeline (18) connection forms circulation loop.
9. a kind of biomass carbonizing furnace smoke waste heat utilization system according to claim 1, it is characterised in that described
Smoke cooling tower (4) is provided with the fume emission mouth (17) for discharging flue gas, is purified by smoke eliminator (3) laggard
Enter the flue gas in smoke cooling tower (4) for after smoke cooling tower inner conduit (20) interior circulating water heating, low-temperature flue gas is arranged by flue gas
Put mouth (17) discharge.
10. a kind of biomass carbonizing furnace smoke waste heat utilization system according to claim 9, it is characterised in that described
Fume emission mouth (17) is connected by flue gas recirculation pipe with the air inlet of retort (1), and low-temperature flue gas is back to retort (1)
It is interior to be used as air intake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711020306.3A CN107805507A (en) | 2018-01-24 | 2018-01-24 | A kind of biomass carbonizing furnace smoke waste heat utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711020306.3A CN107805507A (en) | 2018-01-24 | 2018-01-24 | A kind of biomass carbonizing furnace smoke waste heat utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107805507A true CN107805507A (en) | 2018-03-16 |
Family
ID=61590824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711020306.3A Withdrawn CN107805507A (en) | 2018-01-24 | 2018-01-24 | A kind of biomass carbonizing furnace smoke waste heat utilization system |
Country Status (1)
| Country | Link |
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| CN (1) | CN107805507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669537A (en) * | 2019-11-04 | 2020-01-10 | 河北省农林科学院农业资源环境研究所 | Carbon-fertilizer co-production system |
-
2018
- 2018-01-24 CN CN201711020306.3A patent/CN107805507A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669537A (en) * | 2019-11-04 | 2020-01-10 | 河北省农林科学院农业资源环境研究所 | Carbon-fertilizer co-production system |
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Application publication date: 20180316 |
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