CN111392711A - Production equipment and production process of biochar-based compound fertilizer - Google Patents
Production equipment and production process of biochar-based compound fertilizer Download PDFInfo
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- CN111392711A CN111392711A CN202010476391.XA CN202010476391A CN111392711A CN 111392711 A CN111392711 A CN 111392711A CN 202010476391 A CN202010476391 A CN 202010476391A CN 111392711 A CN111392711 A CN 111392711A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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Abstract
The invention discloses production equipment and a production process of a biochar-based compound fertilizer, and belongs to the technical field of fertilizer production. The production equipment comprises a biochar modification chamber; the water vapor circulation mechanism comprises a water vapor supply device and a first air inlet pipe used for conveying hot gas to the biochar modification chamber along the horizontal direction, the biochar modification chamber is also provided with a buffer device used for reheating gas discharged from the biochar modification chamber, and the heated gas is supplied into the biochar modification chamber along the vertical direction; the pressure relief mechanism is used for controlling the pressure in the biochar modification chamber; the impregnation chamber is used for loading the compound fertilizer on the biochar. The production equipment can realize the modification of the biochar, and can strip the biochar while modifying, thereby increasing the porosity and the specific surface area of pores; and then an impregnation method is adopted to load the organic-inorganic compound fertilizer on the modified charcoal, so that a better slow-release fertilizer-saving effect is realized.
Description
Technical Field
The invention relates to the technical field of fertilizer production, in particular to production equipment and a production process of a biochar-based compound fertilizer.
Background
Biochar is a solid substance formed by thermal cracking conversion of a biomass raw material under an anoxic or oxygen-limited condition. The biochar is a porous body, has particularly good air permeability and water permeability, small volume weight, large surface area and strong water absorption and air permeability, is favorable for water retention and fertilizer retention, contains a large amount of macromolecular carbohydrates and also contains multiple mineral nutrients, can provide nutrient elements required by crops, improves the soil fertility, can adjust the pH value of soil and the conditions of water, fertilizer, gas and heat, can improve the living environment of microorganisms, provides favorable conditions for the growth and the propagation of a plurality of microorganisms, and improves the soil environment. After the biochar is applied to soil, the super-strong adsorption performance of the biochar is utilized, so that on one hand, the loss of nutrient elements can be prevented, on the other hand, the slow release effect can be achieved, the growth of plants is promoted, and the utilization rate of water and fertilizer is improved. The function and the characteristics of the biochar determine the wide application of the biochar in agriculture.
The biological carbon and the organic and inorganic fertilizers are mixed and granulated to prepare the biological carbon-based compound fertilizer, so that the fertilizer loss is reduced through the biological carbon, the fertilizer efficiency is slowly released, the fertilizer utilization rate is improved, and the fertilizer dosage is reduced.
Most of the preparation methods of the biochar-based compound fertilizer in the prior art directly mix and granulate biochar and organic-inorganic fertilizer, so that the tight and stable combination of inorganic fertilizer, organic fertilizer and biochar is difficult to ensure, and because the biochar is light and is difficult to be uniformly mixed with the inorganic fertilizer and the organic fertilizer, the fertilizer-saving and slow-release effects of the biochar are limited.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides production equipment and a production process of a biochar-based compound fertilizer.
The invention provides a production device of a biochar-based compound fertilizer, which comprises: a biochar modification chamber configured to prepare modified biochar; the side wall of the biochar modification chamber is provided with a feed inlet, the bottom of the biochar modification chamber is provided with a discharge outlet, the feed inlet is provided with a plugging piece, and the discharge outlet is provided with a control valve;
the water vapor circulation mechanism comprises a water vapor supply device and a first air inlet pipe used for conveying hot gas to the biochar modification chamber along the horizontal direction, the biochar modification chamber is also connected with a buffer device used for reheating gas discharged by the biochar modification chamber, and the buffer device supplies the reheated gas into the biochar modification chamber along the vertical direction through a second air inlet pipe;
the pressure relief mechanism is arranged in the biochar modification chamber and used for controlling the pressure in the biochar modification chamber;
and the impregnation chamber is arranged at the bottom of the biochar modification chamber and is used for loading the organic-inorganic liquid fertilizer on the modified biochar.
Preferably, the pressure relief mechanism comprises
The first piston plate is hermetically connected with the inner wall of the biochar modification chamber and can slide up and down along the inner wall of the biochar modification chamber; the second air inlet pipe is connected with a first piston plate through a connecting hose, and a first air guiding device used for conveying air into the biochar modification chamber is arranged on the first piston plate;
the exhaust port is arranged on the side wall between the first piston plate and the top of the biochar modification chamber;
and the elastic connecting piece is used for connecting the first piston plate with the top of the biochar modification chamber.
Preferably, first intake-tube connection has the gaseous eduction gear of second, first gaseous eduction gear and the gaseous eduction gear of second all lead gas spare and shell body including the reposition of redundant personnel, evenly distributed has a plurality of arcs protruding on the surface of reposition of redundant personnel gas spare, the bellied peak valley department of arc is equipped with a gaseous passageway with higher speed, gaseous passageway with higher speed includes two loudspeaker form tip to and be located the narrow throat between two loudspeaker form tip, be equipped with the air nozzle on the shell body, air nozzle and the bellied top one-to-one of arc, air nozzle and coupling hose or first intake-tube intercommunication.
Preferably, a first pressure sensor is arranged in the cache device, a first electromagnetic valve is arranged on the second air inlet pipe, and the first pressure sensor and the first electromagnetic valve are both electrically connected with the controller.
Preferably, a second piston plate is further arranged in the caching device, a piston rod is connected to the bottom of the second piston plate, the piston rod penetrates out of the bottom of the caching device and is connected with a stirring device arranged in the impregnation chamber to be used for stirring the impregnation solution and the modified biochar, the second piston plate is connected with the bottom of the caching device through a spring, and a connecting port of the biochar modification chamber and the caching device is located above the second piston plate in a free state.
Preferably, the top end of the stirring device is provided with a conical tip which can extend into a discharge port at the bottom of the biochar modification chamber.
Preferably, the buffer device is of a double-layer structure, and a cavity formed by the double-layer structure is communicated with a flue gas pipeline of the biochar pyrolysis furnace and is used for reheating steam in the buffer device.
Preferably, the first piston plate and the top of the biochar modification chamber are also provided with a telescopic mechanism for enabling the first piston plate to move downwards to promote the modified biochar to enter the impregnation chamber.
Preferably, the outside of the biochar modification chamber is provided with a heat insulation structure.
The invention also discloses a production process for producing the biochar-based compound fertilizer by the production equipment, which comprises the following steps:
preparing biochar;
placing the prepared biochar in a biochar modification chamber, introducing high-temperature water vapor to carry out modification treatment on the biochar in the biochar modification chamber for 10-20min, and simultaneously maintaining the pressure in the biochar modification chamber at 25-30MPa through a pressure relief mechanism;
introducing the modified biochar into an impregnation chamber, filling an impregnation solution into the impregnation chamber, wherein the impregnation solution is formed by mixing an organic liquid fertilizer and an inorganic liquid fertilizer, and impregnating for 60-120min to obtain the modified biochar loaded with the organic fertilizer and the inorganic fertilizer;
uniformly mixing the prepared modified biochar loaded with the organic fertilizer and the inorganic fertilizer with the solid fertilizer, granulating, packaging and warehousing; the biochar-based compound fertilizer is prepared.
Compared with the prior art, the invention has the beneficial effects that: the production equipment can realize the modification of the biochar, and can strip the biochar while modifying, thereby increasing the porosity and the specific surface area of pores; then, loading the organic-inorganic compound fertilizer on the modified charcoal by adopting an impregnation method, thereby realizing better slow-release fertilizer-saving effect;
according to the first gas guiding device and the second gas guiding device, the acceleration of water vapor is realized through the arc-shaped bulge and the gas accelerating channel on the shunting gas guide piece, and the modification and stripping effects are improved.
According to the invention, the buffer memory device is arranged to realize buffer memory and reheating of water vapor, better modification and stripping effects are realized by using energy generated by buffer memory gas during release, the up-and-down movement of the stirring device is realized, the dipping effect is improved, the problem of blockage of the discharge port can be solved by the conical tip arranged at the end part of the stirring device, and the biochar in the biochar modification chamber can be ensured to smoothly enter the dipping chamber with the help of the first piston plate;
the invention loads the organic-inorganic liquid fertilizer on the modified biochar, which not only can solve the problem of untight combination of the biochar and the compound fertilizer, but also solves the problem of difficult mixing with the compound fertilizer due to light weight.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a second gas leading-out device according to the present invention;
fig. 3 is a schematic structural diagram of the first gas guiding device of the present invention.
Description of reference numerals:
1. biochar modification chamber, 2, feed inlet, 3, discharge outlet, 4, steam circulation mechanism, 41, steam supply device, 42, first air inlet pipe, 43, buffer device, 44, second air inlet pipe, 5, pressure relief mechanism, 51, first piston plate, 52, exhaust port, 53, elastic connecting piece, 6, impregnation chamber, 7, connecting hose, 8, first gas leading-out device, 9, second gas leading-out device, 10, flow dividing and gas leading-out piece, 11, outer shell, 12, arc-shaped bulge, 13, gas acceleration channel, 131, horn-shaped end, 132, narrow throat, 14, air nozzle, 15, second piston plate, 16, piston rod, 17, stirring device, 18, conical tip and 19, spring.
Detailed Description
Detailed description of the preferred embodimentsthe following detailed description of the present invention will be made with reference to the accompanying drawings 1-3, although it should be understood that the scope of the present invention is not limited to the specific embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
The invention provides a production device of a biochar-based compound fertilizer, which comprises: a biochar modification chamber 1 configured to prepare modified biochar; a feeding hole 2 is formed in the side wall of the biochar modification chamber 1, a discharging hole 3 is formed in the bottom of the biochar modification chamber, a plugging piece is arranged on the feeding hole 2, and a control valve is arranged on the discharging hole 3;
the water vapor circulating mechanism 4 comprises a water vapor supply device 41 and a first air inlet pipe 42 used for conveying hot gas to the biochar modification chamber 1 along the horizontal direction, a buffer device 43 used for reheating gas discharged from the biochar modification chamber 1 is also connected to the biochar modification chamber 1, and the buffer device 43 supplies the reheated gas into the biochar modification chamber 1 along the vertical direction through a second air inlet pipe 44;
the pressure relief mechanism 5 is arranged in the biochar modification chamber 1 and used for controlling the pressure in the biochar modification chamber 1;
and the impregnation chamber 6 is arranged at the bottom of the biochar modification chamber 1 and is used for loading the organic-inorganic liquid fertilizer on the modified biochar.
In the embodiment, the biochar modification chamber 1 is additionally arranged between a biomass pyrolysis furnace and a mixing granulation device of the traditional biochar-based compound fertilizer production equipment, and the obtained biochar is subjected to high-temperature steam physical modification treatment under constant pressure in the biochar modification chamber 1, so that the pore structure is adjusted, and the porosity and the pore diameter are increased. In addition, the vapor of this embodiment lets in at two dimensions of horizontal direction and vertical direction and can make the contact of the comprehensive multi-angle of biological charcoal and vapor, and peels off biological charcoal through vapor, obtains the lamellar structure, increases biological charcoal's specific surface area once more.
The pressure relief mechanism 5 is used for relieving the pressure in the biochar modification chamber 1, the impregnation chamber 6 is used for loading organic-inorganic liquid fertilizer on the biochar, the combination tightness and stability of the biochar and the fertilizer are improved, and meanwhile, as the biochar is subjected to modification treatment, the loading capacity can be greatly improved, the slow release effect is improved, and the purpose of saving fertilizer is better achieved.
Example 2
On the basis of embodiment 1, the pressure relief mechanism 5 includes
11. The pressure relief mechanism 5 comprises
The first piston plate 51 is hermetically connected with the inner wall of the biochar modification chamber 1 and can slide up and down along the inner wall of the biochar modification chamber 1; the second air inlet pipe 44 is connected with a first piston plate 51 through a connecting hose 7, and a first gas guiding device 8 for transmitting gas into the biochar modification chamber 1 is arranged on the first piston plate 51;
an exhaust port 52 provided on a side wall between the first piston plate 51 and the top of the biochar modification chamber 1;
and the elastic connecting piece 53 is used for connecting the first piston plate 51 with the top of the biochar modification chamber 1.
The working principle is as follows: after water vapor is supplied into the biochar modification chamber 1 through the first air inlet pipe 42, the pressure in the biochar modification chamber 1 is increased due to the continuous increase of the water vapor, the first piston plate 51 is continuously moved upwards when the pressure is increased because the first piston plate 51 is connected with the top of the biochar modification chamber 1 through the elastic connecting piece 53, when the pressure is too high, the first piston plate 51 is moved to the air outlet 52, the water vapor in the biochar modification chamber 1 is exhausted to maintain the pressure balance, and when the pressure in the biochar modification chamber 1 is reduced, the first piston plate 51 is moved downwards under the restoring action of the elastic connecting piece 53, so that the air outlet 52 is blocked. The second pressure sensor is arranged above the exhaust port 52, the second electromagnetic valve is arranged at the exhaust port 52, when the first piston plate 51 moves to the exhaust port 52, the first piston plate 51 is in contact with the second pressure sensor, the second electromagnetic valve is opened, and the second electromagnetic valve is closed after the first piston plate 51 is separated from the second pressure sensor, so that the automatic control of the pressure in the biochar modification chamber 1 is realized, the change of the flow direction of water vapor in the biochar modification chamber 1 is realized through the movement of the first piston plate 51, and the modification effect is improved.
Example 3
On the basis of the above embodiment, in order to make the vapor entering the biochar modification chamber 1 have higher speed and improve the stripping efficiency, therefore, the first air inlet pipe 42 is connected with the second gas guiding device 9, the first gas guiding device 8 and the second gas guiding device 9 both comprise a shunting gas guiding piece 10 and an outer shell 11, a plurality of arc-shaped protrusions 12 are uniformly distributed on the outer surface of the shunting gas guiding piece 10, a gas accelerating channel 13 is arranged at the peak valley of the arc-shaped protrusions 12, the gas accelerating channel 13 comprises two horn-shaped end portions 131 and a narrow throat portion 132 positioned between the two horn-shaped end portions 131, air nozzles 14 are arranged on the outer shell 11, the air nozzles 14 correspond to the top portions of the arc-shaped protrusions 12 one to one, and the air nozzles 14 are communicated with the connecting hose 7 or the first air inlet pipe 42.
Firstly, water vapor is led into each air nozzle 14, the air nozzles 14 are opposite to the highest point of the arc-shaped bulge 12, therefore, when the air nozzles 14 spray air, the arc-shaped bulge 12 can divide the sprayed water vapor to enable the water vapor to enter the air accelerating channels 13 on two sides of the arc-shaped bulge 12, on the basis, the air accelerating channels 13 are structurally provided with trumpet-shaped openings at two ends, narrow throats 132 which shrink towards the middle parts are arranged in the middle parts, air flow is accelerated in the air accelerating channels 13, and the charcoal stripping efficiency is improved. It should be noted that, multiple sets of the second gas leading-out devices 9 may be arranged in parallel for improving the modification efficiency.
Example 4
In order to realize the cyclic utilization of the water vapor, a first pressure sensor is arranged in the cache device 43, a first electromagnetic valve is arranged on the second air inlet pipe, and the first pressure sensor and the first electromagnetic valve are both electrically connected with the controller. Pressurize in the buffer memory of baffle-box through vapor, first pressure sensor is used for detecting the pressure in the buffer memory device 43, and after the pressure in buffer memory device 43 exceeded the setting value, first solenoid valve was opened, and buffer memory device 43 releases pressure in the twinkling of an eye, and the vapor that has certain pressure carries out biological charcoal from vertical direction and modifies room 1, improves and modifies and peel off the effect.
Example 5
In order to stir the impregnation solution and the modified biochar in the solution, a second piston plate 15 is further arranged in the buffer device 43, a piston rod 16 is connected to the bottom of the second piston plate 15, the piston rod 16 penetrates out of the bottom of the buffer device 43 and is connected with a stirring device 17 arranged in the impregnation chamber 6 to stir the impregnation solution and the modified biochar, the second piston plate 15 is connected with the bottom of the buffer device 43 through a spring 19, and a connecting port of the biochar modification chamber 1 and the buffer device 43 is located above the second piston plate 15 in a free state. The stirring can be realized without increasing external power. The piston rod 16 is provided with a sealing ring through the connection between the buffer device 43 and the stirring rod of the stirring device 17, and the connection between the stirring rod and the steeping chamber 6.
Example 6
In order to avoid the blockage of the discharge port 3 at the bottom of the biochar modification chamber 1, the modified biochar is ensured to smoothly enter the impregnation chamber 6, so that a conical tip 18 is arranged at the top end of the stirring device 17, and the conical tip 18 can extend into the discharge port 3 at the bottom of the biochar modification chamber 1.
Wherein, buffer device 43 is bilayer structure, the flue gas pipeline connection of the cavity that bilayer structure formed and biological charcoal pyrolysis oven is used for reheating the vapor in buffer device 43, make full use of the flue gas waste heat of pyrolysis oven, realize reheating buffer device vapor, realize energy-conserving purpose, and the gas in the buffer device 43 cavity is getting back to the flue gas pipeline again and is carried out subsequent processing after carrying out the heat exchange.
Wherein, the first piston plate 51 and the top of the biochar modification chamber 1 are also provided with a telescopic mechanism for making the first piston plate 51 move downwards to promote the modified biochar to enter the impregnation chamber 6. The purpose of quick unloading is realized.
Wherein, the outside of the biochar modification chamber 1 is provided with a heat preservation structure. Avoid heat loss and increase energy consumption.
Wherein, a liquid inlet, a liquid outlet and a discharge hole are arranged on the steeping chamber 6.
Example 7
The production process for producing the biochar-based compound fertilizer by adopting the production equipment comprises the following steps:
preparing biochar;
placing the prepared biochar in a biochar modification chamber 1, introducing high-temperature water vapor to carry out modification treatment on the biochar in the biochar modification chamber 1 for 10-20min, and simultaneously maintaining the pressure in the biochar modification chamber 1 at 25-30MPa through a pressure relief mechanism 5;
the modified biochar enters an impregnation chamber 6, an impregnation solution is filled in the impregnation chamber 6, the impregnation solution is formed by mixing an organic liquid fertilizer and an inorganic liquid fertilizer, and the modified biochar loaded with an organic fertilizer and an inorganic fertilizer is obtained after impregnation for 60-120 min;
the prepared modified biochar loaded with the organic fertilizer and the inorganic fertilizer and the solid fertilizer are uniformly mixed, granulated, packaged and warehoused to prepare the biochar-based compound fertilizer, the utilization rate of the conventional fertilizer can be improved, and the fertility is lasting and long-acting.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The production equipment of the biochar-based compound fertilizer is characterized by comprising the following steps of:
a biochar modification chamber (1) configured to prepare modified biochar; a feeding hole (2) is formed in the side wall of the biochar modification chamber (1), a discharging hole (3) is formed in the bottom of the biochar modification chamber, a plugging piece is arranged on the feeding hole (2), and a control valve is arranged on the discharging hole (3);
the water vapor circulation mechanism (4) comprises a water vapor supply device (41) and a first air inlet pipe (42) used for conveying hot gas to the biochar modification chamber (1) along the horizontal direction, a buffer device (43) used for reheating gas discharged from the biochar modification chamber (1) is further connected to the biochar modification chamber (1), and the buffer device (43) supplies the reheated gas into the biochar modification chamber (1) along the vertical direction through a second air inlet pipe (44);
the pressure relief mechanism (5) is arranged in the biochar modification chamber (1) and is used for controlling the pressure in the biochar modification chamber (1);
and the impregnation chamber (6) is arranged at the bottom of the biochar modification chamber (1) and is used for loading the organic-inorganic liquid fertilizer on the modified biochar.
2. The apparatus for producing a biochar-based compound fertilizer as claimed in claim 1, wherein the pressure relief mechanism (5) comprises
The first piston plate (51) is connected with the inner wall of the biochar modification chamber (1) in a sealing mode and can slide up and down along the inner wall of the biochar modification chamber (1); the second air inlet pipe (44) is connected with a first piston plate (51) through a connecting hose (7), and a first gas guiding device (8) for transmitting gas into the biochar modification chamber (1) is arranged on the first piston plate (51);
an exhaust port (52) provided on a side wall between the first piston plate (51) and the top of the biochar modification chamber (1);
and the elastic connecting piece (53) is used for connecting the first piston plate (51) with the top of the biochar modification chamber (1).
3. The production equipment of biochar-based compound fertilizer as claimed in claim 2, characterized in that the first air inlet pipe (42) is connected with a second air leading-out device (9), the first gas leading-out device (8) and the second gas leading-out device (9) both comprise a flow dividing gas guide piece (10) and an outer shell (11), a plurality of arc-shaped bulges (12) are uniformly distributed on the outer surface of the flow dividing and air guiding piece (10), the peak valley of the arc-shaped bulge (12) is provided with an air accelerating channel (13), the gas acceleration channel (13) comprises two trumpet-shaped ends (131), and a narrow throat (132) between the two flared ends (131), an air nozzle (14) being provided on the outer housing (11), the air nozzles (14) correspond to the tops of the arc-shaped protrusions (12) one by one, and the air nozzles (14) are communicated with the connecting hose (7) or the first air inlet pipe (42).
4. The production equipment of biochar-based compound fertilizer as claimed in claim 1, wherein a first pressure sensor is arranged in the buffer device (43), a first electromagnetic valve is arranged on the second air inlet pipe (44), and the first pressure sensor and the first electromagnetic valve are both electrically connected with the controller.
5. The biochar-based compound fertilizer production equipment as claimed in claim 1, wherein a second piston plate (15) is further arranged in the buffer device (43), a piston rod (16) is connected to the bottom of the second piston plate (15), the piston rod (16) penetrates out of the bottom of the buffer device (43) and is connected with a stirring device (17) arranged in the impregnation chamber (6) for stirring the impregnation solution and the modified biochar, the second piston plate (15) is connected with the bottom of the buffer device (43) through a spring (19), and a connecting port of the biochar modification chamber (1) and the buffer device (43) is located above the second piston plate (15) in a free state.
6. The production equipment of the biochar-based compound fertilizer as claimed in claim 5, characterized in that the top end of the stirring device (17) is provided with a conical pointed end (18), and the conical pointed end (18) can extend into the discharge hole (3) at the bottom of the biochar modification chamber (1).
7. The production equipment of the biochar-based compound fertilizer as claimed in claim 1, wherein the buffer device (43) is of a double-layer structure, and a cavity formed by the double-layer structure is communicated with a flue gas pipeline of the biochar pyrolysis furnace and used for reheating water vapor in the buffer device (43).
8. The biochar-based compound fertilizer production equipment as claimed in claim 1, wherein the top of the first piston plate (51) and the biochar modification chamber (1) is further provided with a telescopic mechanism for enabling the first piston plate (51) to move downwards to promote the modified biochar to enter the impregnation chamber (6).
9. The production equipment of biochar-based compound fertilizer as claimed in claim 1, characterized in that the outside of the biochar modification chamber (1) is provided with a heat preservation structure.
10. The production process for producing the biochar-based compound fertilizer by adopting the production equipment as claimed in any one of claims 1 to 9 is characterized by comprising the following steps of:
preparing biochar;
putting the prepared biochar into a biochar modification chamber (1), introducing high-temperature water vapor to modify the biochar in the biochar modification chamber (1) for 10-20min, and simultaneously maintaining the pressure in the biochar modification chamber (1) at 25-30MPa through a pressure relief mechanism (5);
the modified biochar enters an impregnation chamber (6), an impregnation solution is filled in the impregnation chamber (6), the impregnation solution is formed by mixing an organic liquid fertilizer and an inorganic liquid fertilizer, and the modified biochar loaded with an organic fertilizer and an inorganic fertilizer is obtained after impregnation for 60-120 min;
uniformly mixing the prepared modified biochar loaded with the organic fertilizer and the inorganic fertilizer with the solid fertilizer, granulating, packaging and warehousing; the biochar-based compound fertilizer is prepared.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010476391.XA CN111392711B (en) | 2020-05-29 | 2020-05-29 | Production equipment and production process of biochar-based compound fertilizer |
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| CN202010476391.XA CN111392711B (en) | 2020-05-29 | 2020-05-29 | Production equipment and production process of biochar-based compound fertilizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113244864A (en) * | 2021-04-26 | 2021-08-13 | 花芳 | Slow exhaust device |
| CN114082402A (en) * | 2021-11-22 | 2022-02-25 | 郑州大学 | Gas phase method modification device for environment functional material |
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| CN108147409A (en) * | 2018-03-20 | 2018-06-12 | 孙孝德 | A kind of physically activated production equipment of activated carbon and its application |
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2020
- 2020-05-29 CN CN202010476391.XA patent/CN111392711B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5630367A (en) * | 1993-04-09 | 1997-05-20 | The Social Welfare Foundation Hokkaido Rehabily | Activated carbon and production thereof |
| CN2434305Y (en) * | 2000-06-09 | 2001-06-13 | 王金水 | Vertical active carbon activation furnace |
| CN2687101Y (en) * | 2004-03-04 | 2005-03-23 | 卜少青 | Active carbon steam humidifying device |
| CN107311794A (en) * | 2017-05-27 | 2017-11-03 | 广西壮族自治区烟草公司百色市公司 | One grows tobacco with charcoal base slow-release compound fertilizer and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113244864A (en) * | 2021-04-26 | 2021-08-13 | 花芳 | Slow exhaust device |
| CN114082402A (en) * | 2021-11-22 | 2022-02-25 | 郑州大学 | Gas phase method modification device for environment functional material |
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| CN111392711B (en) | 2020-12-22 |
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