CN110171992A - A kind of desulphurization system turns organic fertilizer technique - Google Patents
A kind of desulphurization system turns organic fertilizer technique Download PDFInfo
- Publication number
- CN110171992A CN110171992A CN201910374876.5A CN201910374876A CN110171992A CN 110171992 A CN110171992 A CN 110171992A CN 201910374876 A CN201910374876 A CN 201910374876A CN 110171992 A CN110171992 A CN 110171992A
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- CN
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- Prior art keywords
- fixedly installed
- organic fertilizer
- teeth
- frame
- desulphurization system
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- 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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/20—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
- C05F17/964—Constructional parts, e.g. floors, covers or doors
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Abstract
The invention belongs to organic fertilizer production fields, especially a kind of desulphurization system turns organic fertilizer technique, sulfur dioxide can be generated during production for existing organic fertilizer, the problem of discharge of sulfur dioxide would seriously pollute the environment, now propose following scheme, it is the following steps are included: S1: drying, crushes to straw；S2: smashed straw is put into reaction kettle, and sulfurous acid ammonia then is added into reaction kettle and additive ferments, fermentation material is made；S3: fermentation material is put into low temperature kneading machine, and the secondary mixing of biological enzyme is added, and mixture is made；S4: mixture is put into pelletizer and is granulated; granular material is made, the present invention can absorb sulfur dioxide, be effectively reduced the generation of sulfur dioxide; feed particles can quickly be sieved simultaneously, the organic fertilizer particles made are more uniform.
Description
Technical field
The present invention relates to organic fertilizer production technical fields more particularly to a kind of desulphurization system to turn organic fertilizer technique.
Background technique
Organic fertilizer is mainly derived from plant and (or) animal, and imposing on soil to provide plant nutrient is containing for its major function
Carbon material.Through biological substance, animals and plants waste, plant residue processing, poisonous and harmful substance therein is eliminated, is rich in
A large amount of benefit materials, comprising: a variety of organic acids, peptides and the nutrient abundant including nitrogen, phosphorus, potassium.It can not only
Full nutrition is provided for crops, and fertilizer efficiency is long, can increase and update the soil organism, promote microbial reproduction, improves soil
The physicochemical property and bioactivity of earth are the Main Nutrients of pollution-free food production.
Organic fertilizer can generate sulfur dioxide during production, and the discharge of sulfur dioxide would seriously pollute the environment, simultaneously
The organic fertilizer particles produced are uneven.
Summary of the invention
The purpose of the present invention is to solve organic fertilizer exists in the prior art to generate titanium dioxide during production
The shortcomings that sulphur, the discharge of sulfur dioxide would seriously pollute the environment, and a kind of desulphurization system proposed turns organic fertilizer technique.
To achieve the goals above, present invention employs following technical solutions:
A kind of desulphurization system turns organic fertilizer technique, comprising the following steps:
S1: drying straw, crushes；
S2: smashed straw is put into reaction kettle, and sulfurous acid ammonia and additive are then added into reaction kettle
It ferments, fermentation material is made；
S3: fermentation material is put into low temperature kneading machine, and the secondary mixing of biological enzyme is added, and mixture is made；
S4: mixture being put into pelletizer and is granulated, and granular material is made；
S5: sieving granular material, obtains uniform particulate material, and particulate material drying is cooling
Organic fertilizer is made.
Preferably, screening plant is installed, screening plant includes two risers, and two risers mutually lean on the pelletizer
Close side is mutually welded with the two sides of pelletizer respectively, two riser sides close to each other be fixedly installed with the same top with
Bottom is the installs case of opening, and installing frame is slidably fitted in installs case, sieve is fixedly installed in installing frame, pelletizer
Top and bottom is respectively equipped with inlet port and outlet port, and discharge port extends in installing frame, and sieve is located below the discharge opening, former
Feed inlet of the material through pelletizer, which enters in pelletizer, to be granulated, and is discharged from discharge port by feed particles, the feed particles of discharge
It enters in installing frame, is sieved through sieve.
Preferably, rotation hole is offered on a riser in two risers, promotion frame is slidably fitted in rotation hole, is pushed away
The side of dynamic frame and the side of installing frame are mutually welded, and the two sides of installs case offer slide opening, push the side wall of frame and slide opening sliding
Dynamic connection, the other side of installing frame are fixedly installed with slide plate, and slide plate is connected with the side walls of corresponding slide opening, by pushing frame
Installing frame can be driven to be moved.
Preferably, multiple first teeth are fixedly installed in the top inner wall for pushing frame, multiple first teeth are equidistant
It sows discord every being fixedly installed with motor in setting, the side inner wall of rotation hole, is fixedly installed on the output shaft of motor and is located at promotion
Plectane in frame, is fixedly installed with multiple second teeth on the outside of plectane, multiple fan-shaped distributions of second teeth, the second teeth with
First teeth are meshed, and motor drives plectane rotation, and plectane drives multiple second teeth rotations, and the second teeth are nibbled with the first teeth
It closes, pushes frame to be moved to the left so the second teeth are driven by the first teeth.
Preferably, the top and bottom for pushing frame is fixedly installed with fixed block, and the side of fixed block is fixedly mounted
There is one end of the first spring, the other end of the first spring is mutually welded with the side of riser, is restored by two the first springs, can be with
It pulls and frame is pushed to move right.
Preferably, two riser sides close to each other are slidably fitted with the same placement plate, and the top of placement plate is placed
There is picking-up container, picking-up container is located at the lower section of installs case, and picking-up container is used to store the particulate material sieved.
Preferably, two riser sides close to each other are fixedly installed with the same bottom plate, and bottom plate is positioned at placement plate
Lower section, opens up at the top of bottom plate fluted, and the bottom of placement plate is fixedly installed with the first trapezoid block, and the bottom of the first trapezoid block is prolonged
It extends in groove, is slidably installed in groove there are two the second trapezoid block, the inclined-plane of two the second trapezoid blocks is trapezoidal with first respectively
Two inclined-planes of block are slidably connected, and the side that two the second trapezoid blocks are located remotely from each other is fixedly installed with one end of second spring,
The other end of two second springs is mutually welded with the two sides inner wall of groove respectively, as the raw material in picking-up container increases, picking-up container
Weight increase presses placement plate and moves down, and placement plate drives the first trapezoid block to squeeze two the second trapezoid blocks, to make two
Second spring is shunk.
Preferably, the bottom of first trapezoid block is fixedly installed with the first conducting block, fixes in the bottom interior wall of groove
The second conducting block being located at below the first conducting block is installed, the first conducting block and the second conducting block be respectively positioned on two it is second trapezoidal
Between block, the side of bottom plate is fixedly installed with alarm, and bottom plate is equipped with power supply, the first conducting block, the second conducting block, alarm
It is sequentially connected in series with power supply, the first trapezoid block will drive the first conducting block and move down when moving down, the first conducting block and second
When conducting block contacts, the first conducting block, the second conducting block, alarm and power supply conducting, alarm energization are sounded, and people is reminded to connect
Raw material in hopper soon fills, and needs to handle, raw material is avoided to spread out.
In the present invention, a kind of desulphurization system turns organic fertilizer technique and passes through that ammonia process of desulfurization pair is added during fermentation
Product sulfurous acid ammonia, can absorb sulfur dioxide, be effectively reduced the generation of sulfur dioxide；
Raw material enters in pelletizer through the feed inlet of pelletizer to be granulated, and is discharged from discharge port by feed particles, discharge
Feed particles enter in installing frame, after sieve sieves, and raw material enter storage in picking-up container, pass through motor switch
Start motor, motor drives plectane rotation, and plectane drives multiple second teeth rotations, and the second teeth are engaged with the first teeth, institute
Being driven with the second teeth by the first teeth pushes frame to be moved to the left, and frame is pushed to squeeze two the first bullets by two fixed blocks
Spring, while pushing frame that installing frame is driven to be moved to the left, when plectane without the second teeth partial turn to top when, the second teeth
Far from the first teeth, two the first springs restore at this time, push frame to move right to pull, frame is pushed to drive installing frame to the right
It is mobile, so that sieve be made constantly to be moved back and forth, screening efficiency can be accelerated；
The present invention can absorb sulfur dioxide, be effectively reduced the generation of sulfur dioxide, while can be to original
Material particle is quickly sieved, and the organic fertilizer particles made are more uniform.
Detailed description of the invention
Fig. 1 is the structure that a kind of desulphurization system proposed by the present invention turns the pelletizer of organic fertilizer technique and screening plant is connect
Schematic diagram；
Fig. 2 is the structural schematic diagram of the part A for Fig. 1 that a kind of desulphurization system proposed by the present invention turns organic fertilizer technique；
Fig. 3 is the structural schematic diagram of the part B for Fig. 1 that a kind of desulphurization system proposed by the present invention turns organic fertilizer technique.
In figure: 1 pelletizer, 2 risers, 3 installs cases, 4 installing frames, 5 sieves, 6 rotation holes, 7 push frame, 8 first teeth, 9
Plectane, 10 second teeth, 11 fixed blocks, 12 first springs, 13 placement plates, 14 picking-up containers, 15 bottom plates, 16 first trapezoid blocks, 17
First conducting block, 18 grooves, 19 second conducting blocks, 20 alarms, 21 second trapezoid blocks, 22 second springs.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-3, a kind of desulphurization system turns organic fertilizer technique, comprising the following steps:
S1: drying straw, crushes；
S2: smashed straw is put into reaction kettle, and sulfurous acid ammonia and additive are then added into reaction kettle
It ferments, fermentation material is made；
S3: fermentation material is put into low temperature kneading machine, and the secondary mixing of biological enzyme is added, and mixture is made；
S4: mixture being put into pelletizer 1 and is granulated, and granular material is made；
S5: sieving granular material, and raw material enters in pelletizer 1 through the feed inlet of pelletizer 1 to be granulated,
Be discharged from discharge port by feed particles, the feed particles of discharge enter in installing frame 4, through sieve 5 screening after, and raw material
It is stored in into picking-up container 14, motor is started by motor switch, motor drives plectane 9 to rotate, and plectane 9 drives multiple second teeth
Tooth 10 rotates, and the second teeth 10 are engaged with the first teeth 8, so the second teeth 10 are driven by the first teeth 8 pushes frame 7 to the left
It is mobile, push frame 7 to squeeze two the first springs 12 by two fixed blocks 11, while frame 7 being pushed to drive installing frame 4 to moving to left
It is dynamic, when plectane 9 without the second teeth 10 partial turn to top when, the second teeth 10 are far from the first teeth 8, two the at this time
One spring 12 restores, and pushes frame 7 to move right to pull, pushes frame 7 that installing frame 4 is driven to move right, to make sieve 5 not
Disconnected move back and forth, and can accelerate screening efficiency, obtains uniform particulate material, and particulate material drying is cooling
Organic fertilizer is made.
In the present invention, screening plant is installed on pelletizer 1, screening plant includes two risers 2, and two risers 2 are mutual
Close side is mutually welded with the two sides of pelletizer 1 respectively, and two sides close to each other of riser 2 are fixedly installed with the same top
Portion and bottom are the installs case 3 of opening, are slidably fitted with installing frame 4 in installs case 3, are fixedly installed with sieve in installing frame 4
5, the top and bottom of pelletizer 1 is respectively equipped with inlet port and outlet port, and discharge port extends in installing frame 4, and sieve 5 is located at
The lower section of material mouth, raw material enters in pelletizer 1 through the feed inlet of pelletizer 1 to be granulated, and is discharged from discharge port by feed particles,
The feed particles of discharge enter in installing frame 4, sieve through sieve 5.
In the present invention, rotation hole 6 is offered on a riser 2 in two risers 2, is slidably fitted with and pushes away in rotation hole 6
The side of dynamic frame 7, the side and installing frame 4 that push frame 7 is mutually welded, and the two sides of installs case 3 offer slide opening, push frame 7 and
The side walls of slide opening connect, and the other side of installing frame 4 is fixedly installed with slide plate, and slide plate connects with the side walls of corresponding slide opening
It connects, by pushing frame 7 that installing frame 4 can be driven to be moved.
It in the present invention, pushes and is fixedly installed with multiple first teeth 8 in the top inner wall of frame 7, multiple first teeth 8 are equidistant
It sows discord every being fixedly installed with motor in setting, the side inner wall of rotation hole 6, is fixedly installed on the output shaft of motor and is located at promotion
Plectane 9 in frame 7, the outside of plectane 9 are fixedly installed with multiple second teeth 10, the fan-shaped distribution of multiple second teeth 10, and
Two teeth 10 are meshed with the first teeth 8, and motor drives plectane 9 to rotate, and plectane 9 drives multiple second teeth 10 to rotate, and second
Teeth 10 are engaged with the first teeth 8, push frame 7 to be moved to the left so the second teeth 10 are driven by the first teeth 8.
In the present invention, the top and bottom of frame 7 is pushed to be fixedly installed with fixed block 11, the fixed peace in the side of fixed block 11
One end equipped with the first spring 12, the other end of the first spring 12 are mutually welded with the side of riser 2, pass through two the first springs 12
It restores, can pull and frame 7 is pushed to move right.
In the present invention, two sides close to each other of riser 2 are slidably fitted with the same placement plate 13, the top of placement plate 13
Portion is placed with picking-up container 14, and picking-up container 14 is located at the lower section of installs case 3, and picking-up container 14 is used to store the granular raw sieved
Material.
In the present invention, two sides close to each other of riser 2 are fixedly installed with the same bottom plate 15, and bottom plate 15 is positioned at putting
The lower section of plate 13 is set, the top of bottom plate 15 opens up fluted 18, and the bottom of placement plate 13 is fixedly installed with the first trapezoid block 16, the
The bottom of one trapezoid block 16 extends in groove 18, and being slidably installed in groove 18, there are two the second trapezoid block 21, two second ladders
The inclined-plane of shape block 21 is slidably connected with two inclined-planes of the first trapezoid block 16 respectively, two the second trapezoid blocks 21 be located remotely from each other one
Side is fixedly installed with one end of second spring 22, the other end of two second springs 22 respectively with the two sides inner wall phase of groove 18
Welding, the bottom of the first trapezoid block 16 is fixedly installed with the first conducting block 17, is fixedly installed with position in the bottom interior wall of groove 18
The second conducting block 19 in the lower section of the first conducting block 17, the first conducting block 17 and the second conducting block 19 be respectively positioned on two it is second trapezoidal
Between block 21, the side of bottom plate 15 is fixedly installed with alarm 20, and bottom plate 15 is equipped with power supply, and the first conducting block 17, second are led
Electric block 19, alarm 20 and power supply are sequentially connected in series.
In the present invention, as the raw material in picking-up container 14 increases, 14 weight increase of picking-up container presses placement plate 13 to moving down
Dynamic, placement plate 13 drives the first trapezoid block 16 to squeeze two the second trapezoid blocks 21, so that two second springs 22 are shunk, first
Trapezoid block 16 will drive the first conducting block 17 and move down when moving down, the first conducting block 17 is contacted with the second conducting block 19
When, the first conducting block 17, the second conducting block 19, alarm 20 and power supply conducting, the energization of alarm 20 are sounded, and people's splicing is reminded
Raw material in case 14 soon fills, and needs to handle, raw material is avoided to spread out.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of desulphurization system turns organic fertilizer technique, which comprises the following steps:
S1: drying straw, crushes；
S2: smashed straw is put into reaction kettle, and sulfurous acid ammonia is then added into reaction kettle and additive carries out
Fermentation material is made in fermentation；
S3: fermentation material is put into low temperature kneading machine, and the secondary mixing of biological enzyme is added, and mixture is made；
S4: mixture is put into pelletizer (1) and is granulated, granular material is made；
S5: sieving granular material, obtains uniform particulate material, particulate material drying, and cooling can be prepared by
Organic fertilizer.
2. a kind of desulphurization system according to claim 1 turns organic fertilizer technique, which is characterized in that on the pelletizer (1)
Screening plant is installed, screening plant includes two risers (2), two risers (2) side close to each other respectively with pelletizer
(1) two sides are mutually welded, and it is opening that two riser (2) sides close to each other, which are fixedly installed with the same top and bottom,
Installs case (3), installs case (3) is interior to be slidably fitted with installing frame (4), is fixedly installed with sieve (5), pelletizer in installing frame (4)
(1) top and bottom is respectively equipped with inlet port and outlet port, and discharge port extends in installing frame (4), and sieve (5) is located at discharging
The lower section of mouth.
3. a kind of desulphurization system according to claim 2 turns organic fertilizer technique, which is characterized in that in two risers (2)
Offered rotation hole (6) on one riser (2), be slidably fitted in rotation hole (6) and push frame (7), push the side of frame (7) with
The side of installing frame (4) is mutually welded, and the two sides of installs case (3) offer slide opening, and the side walls of frame (7) and slide opening is pushed to connect
It connects, the other side of installing frame (4) is fixedly installed with slide plate, and slide plate is connected with the side walls of corresponding slide opening.
4. a kind of desulphurization system according to claim 3 turns organic fertilizer technique, which is characterized in that promotion frame (7)
Multiple first teeth (8) are fixedly installed in top inner wall, multiple first teeth (8) are equidistantly spaced, rotation hole (6)
It is fixedly installed with motor on the inner wall of side, the plectane (9) for being located at and pushing in frame (7), circle are fixedly installed on the output shaft of motor
Multiple second teeth (10), the fan-shaped distribution of multiple second teeth (10), the second teeth (10) are fixedly installed on the outside of plate (9)
It is meshed with the first teeth (8).
5. a kind of desulphurization system according to claim 3 turns organic fertilizer technique, which is characterized in that promotion frame (7)
Top and bottom is fixedly installed with fixed block (11), and the side of fixed block (11) is fixedly installed with the one of the first spring (12)
End, the side of the other end and riser (2) of the first spring (12) is mutually welded.
6. a kind of desulphurization system according to claim 2 turns organic fertilizer technique, which is characterized in that two risers (2) are mutual
Close side is slidably fitted with the same placement plate (13), and picking-up container (14), picking-up container are placed at the top of placement plate (13)
(14) it is located at the lower section of installs case (3).
7. a kind of desulphurization system according to claim 2 turns organic fertilizer technique, which is characterized in that two risers (2) are mutual
Close side is fixedly installed with the same bottom plate (15), and bottom plate (15) is located at the lower section of placement plate (13), the top of bottom plate (15)
Portion opens up fluted (18), and the bottom of placement plate (13) is fixedly installed with the first trapezoid block (16), the bottom of the first trapezoid block (16)
Portion extends in groove (18), and being slidably installed in groove (18), there are two the second trapezoid block (21), two the second trapezoid blocks (21)
Inclined-plane be slidably connected respectively with two inclined-planes of the first trapezoid block (16), the side that two the second trapezoid blocks (21) are located remotely from each other
It is fixedly installed with one end of second spring (22), the other end of two second springs (22) is respectively and in the two sides of groove (18)
Wall mutually welds.
8. a kind of desulphurization system according to claim 7 turns organic fertilizer technique, which is characterized in that first trapezoid block
(16) bottom is fixedly installed with the first conducting block (17), is fixedly installed in the bottom interior wall of groove (18) positioned at the first conduction
The second conducting block (19) below block (17), the first conducting block (17) and the second conducting block (19) are respectively positioned on two the second trapezoid blocks
(21) between, the side of bottom plate (15) is fixedly installed with alarm (20), and bottom plate (15) is equipped with power supply, the first conducting block
(17), the second conducting block (19), alarm (20) and power supply are sequentially connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910374876.5A CN110171992A (en) | 2019-05-07 | 2019-05-07 | A kind of desulphurization system turns organic fertilizer technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910374876.5A CN110171992A (en) | 2019-05-07 | 2019-05-07 | A kind of desulphurization system turns organic fertilizer technique |
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| Publication Number | Publication Date |
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| CN110171992A true CN110171992A (en) | 2019-08-27 |
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| CN201910374876.5A Pending CN110171992A (en) | 2019-05-07 | 2019-05-07 | A kind of desulphurization system turns organic fertilizer technique |
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| CN103708982A (en) * | 2013-12-15 | 2014-04-09 | 张彩年 | Organic-inorganic compound fertilizer capable of functionally improving soil and production method thereof |
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| CN108546212A (en) * | 2018-08-01 | 2018-09-18 | 安徽乐农环保科技有限公司 | A kind of preparation method of microbial organic fertilizer |
| CN108726040A (en) * | 2018-05-05 | 2018-11-02 | 郑州栾信科技有限公司 | Dangerous solid waste processing bucket |
| CN208139801U (en) * | 2018-04-17 | 2018-11-23 | 安徽富民生物有机肥有限公司 | It is a kind of to be granulated uniform fertilizer granulation device |
| CN210394204U (en) * | 2019-05-07 | 2020-04-24 | 张波 | Desulfurization system changes fertilizer device |
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2019
- 2019-05-07 CN CN201910374876.5A patent/CN110171992A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708982A (en) * | 2013-12-15 | 2014-04-09 | 张彩年 | Organic-inorganic compound fertilizer capable of functionally improving soil and production method thereof |
| CN206824145U (en) * | 2017-05-15 | 2018-01-02 | 重庆市蜀达饲料有限公司 | A kind of feed manufacturing dedusting screening machine |
| CN108067324A (en) * | 2017-11-09 | 2018-05-25 | 深圳市晟腾企业管理有限公司 | A kind of building coating powder mull screening plant |
| CN208139801U (en) * | 2018-04-17 | 2018-11-23 | 安徽富民生物有机肥有限公司 | It is a kind of to be granulated uniform fertilizer granulation device |
| CN108726040A (en) * | 2018-05-05 | 2018-11-02 | 郑州栾信科技有限公司 | Dangerous solid waste processing bucket |
| CN108546212A (en) * | 2018-08-01 | 2018-09-18 | 安徽乐农环保科技有限公司 | A kind of preparation method of microbial organic fertilizer |
| CN210394204U (en) * | 2019-05-07 | 2020-04-24 | 张波 | Desulfurization system changes fertilizer device |
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