CN115160027A - Preparation method of trace element fertilizer - Google Patents
Preparation method of trace element fertilizer Download PDFInfo
- Publication number
- CN115160027A CN115160027A CN202210780412.6A CN202210780412A CN115160027A CN 115160027 A CN115160027 A CN 115160027A CN 202210780412 A CN202210780412 A CN 202210780412A CN 115160027 A CN115160027 A CN 115160027A
- Authority
- CN
- China
- Prior art keywords
- raw materials
- fixedly connected
- trace element
- element fertilizer
- fertilizer
- 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.)
- Granted
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 52
- 239000011573 trace mineral Substances 0.000 title claims abstract description 34
- 235000013619 trace mineral Nutrition 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims description 30
- 239000008187 granular material Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
- C05D9/02—Other inorganic fertilisers containing trace elements
-
- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to the field of fertilizer preparation, in particular to a preparation method of a trace element fertilizer. The method comprises the following steps: the method comprises the following steps: heating a plurality of raw materials in a trace element fertilizer preparation device until the raw materials are melted, and then blanking; step two: fully mixing the melted raw materials and then discharging; step three: processing the discharged raw materials into hollow fertilizer particles; step four: collecting the hollow fertilizer particles for storage and standby. The device comprises a barrel for mixing raw materials, two inclined pipes fixedly connected to the barrel and used for melting the raw materials, and a heating pipe fixedly connected to the two inclined pipes and used for heating. The device also comprises end covers fixedly connected to the two inclined pipes and two material pushing frames rotating on the two end covers. Can fully mix the trace elements with the common fertilizer.
Description
Technical Field
The invention relates to the field of fertilizer preparation, in particular to a preparation method of a trace element fertilizer.
Background
The microelements comprise boron, zinc, molybdenum, ferrum, manganese, copper and other nutrient elements. Although the trace elements are required by plants in a small amount, the effect of the trace elements on the growth and development of the plants is as important as that of macroelements, and when certain trace elements are deficient, the growth and development of crops are obviously influenced, the yield is reduced, and the quality is reduced. In reality, the requirements of plants on trace elements are met mainly by mixing a plurality of fertilizers containing single trace elements, and the trace elements cannot be fully mixed with common fertilizers.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the preparation method of the trace element fertilizer, which can fully mix the trace elements with the common fertilizer.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a preparation method of a trace element fertilizer comprises the following steps:
the method comprises the following steps: heating a plurality of raw materials in a trace element fertilizer preparation device until the raw materials are melted, and then discharging;
step two: fully mixing the melted raw materials and then discharging;
step three: processing the discharged raw materials into hollow fertilizer granules;
step four: collecting the hollow fertilizer particles for storage and standby.
Furthermore, the device comprises a barrel for mixing the raw materials, two inclined pipes fixedly connected to the barrel and used for melting the raw materials, and a heating pipe fixedly connected to the two inclined pipes and used for heating.
Furthermore, the device also comprises end covers fixedly connected to the two inclined pipes and two material pushing frames rotating on the two end covers.
Furthermore, the device also comprises a support for supporting the barrel, an indexing frame which is rotated on the support, a plurality of bases which are fixedly connected on the indexing frame, and a plurality of forming spheres I which are placed in the bases, wherein the forming spheres I are contacted with the discharge port surface of the barrel when rotating.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a flow chart of a process for preparing fertilizer;
FIG. 2 is a view showing the structure of a melted raw material;
FIG. 3 is a view showing the structure of a pushing raw material;
FIG. 4 is a view showing the structure of receiving raw materials;
FIG. 5 is a block diagram of leakage prevention;
FIG. 6 is a part view of a molded sphere I;
FIG. 7 is a schematic view of an index frame;
FIG. 8 is a diagram showing the positional relationship between the molded sphere II and the molded sphere I;
FIG. 9 is a detail view of the shaped sphere II;
FIG. 10 is an assembly view of the shaped sphere II;
FIG. 11 is a structural diagram of the driving of the shaped sphere II and the shaped sphere I;
fig. 12 is a structural view of a trace element fertilizer production apparatus.
A barrel 11; a chute 12; a heating pipe 13; an end cap 21; a pusher frame 22; a bracket 31; an index frame 32; a base 33; a magnetic ball II 34; a molded sphere I41; a magnetic ball I42; a closing plate 51; a molded sphere II 61; a magnet 62; an upper frame 71; a magnetic block 72; a cylinder 81; a fork frame 82; and a drive wheel 83.
Detailed Description
Referring to fig. 1, a process flow for preparing a trace element fertilizer is illustrated in detail:
a preparation method of a trace element fertilizer comprises the following steps:
the method comprises the following steps: the preparation of the trace element fertilizer needs to use raw materials containing trace elements required by plants, such as raw materials containing nutrient elements such as boron, zinc, molybdenum, iron, manganese, copper and the like, and various raw materials are heated in a trace element fertilizer preparation device to melt the raw materials, and blanking is carried out after the raw materials are fully melted, so that the next working procedure can be conveniently carried out;
step two: the melted raw materials are fully mixed, the melted raw materials can be fully mixed and are mixed more uniformly, the trace elements contained in the finally manufactured fertilizer are more uniform, compared with the traditional method for mixing various fertilizer particles, the situation that the fertilizer components are not uniform, soil and plants cannot obtain uniform nutrient components and the growth of the plants is influenced due to nonuniform accumulation of the particles in the process of using the fertilizer cannot exist, and the mixed raw materials are discharged;
step three: the discharged raw materials are processed into hollow fertilizer particles, the contact area between the hollow fertilizer particles and soil is larger, when a certain part of the shell of the fertilizer particles is firstly decomposed, the inner wall and the outer wall of the fertilizer particles are fully contacted with the soil or water, so that the fertilizer particles are quickly decomposed, and the purpose of nourishing the soil and plants is achieved;
step four: collecting the hollow fertilizer particles for storage and standby.
With the above embodiments, the following functions can also be realized;
referring to fig. 2, the implementation process of heating and melting various raw materials is described in detail:
the device includes bucket 11, two pipe chute 12 of fixedly connected with on bucket 11, the discharge gate of two pipe chute 12 all is tangent with the inner wall of bucket 11, when the raw materials in two pipe chute 12 flow into bucket 11 in, the laser is on the inner wall of bucket 11, and flow along the inner wall of bucket 11 under the direction of the inner wall of bucket 11, carry out the mixture of raw materials, equal fixedly connected with heating pipe 13 on two pipe chute 12, two heating pipe 13 all are linked together with the heating equipment of outside setting, heat is provided two heating pipe 13 through the heating equipment of outside setting, rethread two heating pipe 13 heat two pipe chute 12, the effect that the raw materials that finally play to adding in two pipe chute 12 melt, the raw materials that melt flows under the state of two pipe chute 12 inner walls natural slopes, finally flow into bucket 11, and the raw materials converge and mix in bucket 11, realize the mixture of multiple raw materials, later carry out the preparation of microelement fertilizer.
With the above embodiments, the following functions can also be realized;
with reference to fig. 2 and 3, the process for making the raw materials fully implemented is described in detail:
the terminal surface of two pipe chute 12 all has end cover 21 through threaded connection, all rotate on two end cover 21 and be connected with material pushing frame 22, two material pushing frame 22 all are on the output shaft of gear motor I through shaft coupling fixed connection, two gear motor I all are on the end cover 21 that corresponds through bolt fixed connection, it rotates to start two gear motor I drive two material pushing frame 22, two material pushing frame 22 are the part that has helical blade, the homoenergetic promotes or is detained the raw materials under rotating, make the raw materials can carry out abundant heating and melt, make the raw materials become even more quick behind the fluid mix, thereby can be quick process out microelement fertilizer.
With the above embodiments, the following functions can also be realized;
referring to fig. 4, the implementation process of the mixed raw material discharge is described in detail:
support and go up through bolt fixedly connected with support 31 on the bucket 11, be connected with graduated frame 32 through the bearing rotation on the support 31, graduated frame 32 fixed connection is on gear motor II's output shaft, gear motor II can drive graduated frame 32 and carry out the rotation of waiting the angle, a plurality of bases 33 of through bolt fixedly connected with on the graduated frame 32, shaping spheroid I41 has all been placed in a plurality of bases 33, contact with the discharge gate face of bucket 11 when a plurality of shaping spheroid I41 rotate, when starting gear motor II and rotating, gear motor II drives graduated frame 32 and rotates, make a plurality of bases 33 stop the discharge gate department at support bucket 11 one by one, raw materials in the bucket 11 fall in the shaping spheroid I41 that the lower extreme corresponds, be provided with a plurality of shaping grooves on the shaping spheroid I41, a plurality of shaping grooves are the hemisphere, can load the raw materials, along with the rotation of graduated frame 32, a plurality of shaping spheroid I41 also can be struck off unnecessary raw materials by the discharge gate of bucket 11 after accepting the raw materials in the bucket 11, prevent to cause the waste of raw materials.
With the above embodiments, the following functions can also be realized;
referring to fig. 6 and 7, the implementation of preventing the molded sphere i from being separated from the corresponding seat without applying an external force is described in detail:
equal fixedly connected with magnetic ball I42 on a plurality of shaping spheroid I41, equal fixedly connected with magnetic ball II 34 in a plurality of bases 33, a plurality of magnetic balls I42 and the II 34 of magnetic ball that correspond attract each other under the condition that does not exert external force, can not separate, magnetic force through I42 of magnetic ball and the II 34 of magnetic ball that corresponds, ensure at graduation frame 32 pivoted in-process, the skew of position can not appear because centrifugal force in a plurality of shaping spheroid I41, lead to the processing of the unloading of unable realization raw materials and fertilizer granule.
With the above embodiments, the following functions can also be realized;
referring to fig. 5, an implementation process for preventing leakage of the raw material inside the tub is explained in detail:
through bolt fixed connection shrouding 51 on the graduated scale 32, under the circumstances that does not exert external force, a complete ring board is constituteed with shrouding 51 to the up end of a plurality of shaping spheroid I41, and when a plurality of shaping spheroid I41 do not contact with the discharge gate face of bucket 11, shrouding 51 and the contact of the discharge gate face of bucket 11 prevent that the raw materials in the bucket 11 from appearing revealing.
With the above embodiments, the following functions can also be realized;
with reference to fig. 8, 9, 10 and 12, an implementation process for achieving the preparation of hollow fertilizer granules is detailed:
the upper frame 71 is fixedly connected to the support 31 through bolts, the magnetic block 72 is fixedly connected to the upper frame 71, the magnet 62 is arranged at the lower end of the magnet 72, the magnet 72 and the magnet 62 are mutually attracted by magnetic force, the magnet 62 is fixedly connected to the forming sphere II 61 and mutually attracted by magnetic force, the forming sphere II 61 is arranged in the upper frame 71, when one of the forming spheres I41 at the lower end rotates to the lower end of the forming sphere II 61, the forming sphere I41 at the lower end and the forming sphere II 61 at the upper end are pushed to be combined into a sphere through the action of external force, a forming groove forming a complete spherical space with the forming grooves in the forming sphere I41 is processed in the forming sphere II 61, the forming sphere II 61 and the corresponding forming sphere I41 are driven to rotate through the external force, so that raw materials are solidified on the inner wall of the spherical space, hollow particles are processed, the forming sphere II 61 and the corresponding forming sphere I41 are separated, the prepared hollow particles are exposed, and can be collected in subsequent processes.
With the above embodiments, the following functions can also be realized;
referring to fig. 11, the implementation of the rotation preparation of the driving molded sphere i is detailed:
through bolt fixedly connected with cylinder 81 on support 31, fixedly connected with forked frame 82 on cylinder 81's the cylinder pole, it is connected with two drive wheels 83 to rotate on forked frame 82, two drive wheels 83 all are through bolt fixed connection on gear motor III's output shaft, two gear motor III all are through bolt fixed connection on forked frame 82, start two gear motor III, two gear motor III drive two drive wheels 83 and rotate, start cylinder 81, cylinder 81 drives forked frame 82 and rises, forked frame 82 drives two drive wheels 83 and rises and promote the shaping spheroid I41 and rise and constitute complete spheroid with shaping spheroid II 61 of upper end, rethread two drive wheels 83 drive shaping spheroid I41 and the rotation of shaping spheroid II 61 through frictional force, realize the production preparation of hollow granule, all be provided with the rubber sleeve on two drive wheels 83's the excircle, be used for the increase and the frictional force of I41 of shaping spheroid and the contact of shaping spheroid II 61, ensure that shaping spheroid I41 and shaping spheroid II 61 carry out reliable rotation of slowing down, can also fixedly connected with two auxiliary wheels on forked frame 82, make two auxiliary wheel cooperation drive wheels 83, jointly lift up shaping spheroid I41 and carry out effectual lift up and carry out the rotation of shaping spheroid I of the turn number of the rotation of the turn of the shaping spheroid I of the turn of the start-up, ensure that two shaping spheroid I is convenient to take place the initial turn and rotate at every turn and rotate.
With the above embodiments, the following functions can also be realized;
referring to fig. 6 and 9, the implementation process for preventing the raw material leakage when the molded sphere i and the molded sphere ii rotate is described in detail:
be provided with on II 61 of shaping spheroid and be used for sealed cyclic annular arch, all be provided with on a plurality of shaping spheroid I41 and realize sealed annular with cyclic annular protruding cooperation, can guarantee to seal between II 61 of shaping spheroid and the I41 of shaping spheroid, prevent revealing of raw materials, cause the waste of resource.
With the above embodiments, the following functions can also be realized;
referring to fig. 2 and 4, the process of fully mixing the raw materials is illustrated in detail:
be provided with mixing assembly on bucket 11, mixing assembly is including being used for covering the upper cover of bucket 11 upper end, and it is connected with the mixing rod that is used for mixing the raw materials to cover the rotation on, and the rigid coupling drives mixing rod pivoted gear motor IV on covering, drives mixing rod through gear motor IV and rotates and carry out abundant obtaining mix with the raw materials in bucket 11, realizes the processing of fertilizer.
Claims (10)
1. A preparation method of a trace element fertilizer is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: heating a plurality of raw materials in a trace element fertilizer preparation device until the raw materials are melted, and then blanking;
step two: fully mixing the melted raw materials and then discharging;
step three: processing the discharged raw materials into hollow fertilizer granules;
step four: collecting hollow fertilizer particles for storage and later use.
2. A method of producing a trace element fertilizer as claimed in claim 1, wherein: the device comprises a barrel (11) for mixing raw materials, two inclined pipes (12) fixedly connected to the barrel (11) and used for melting the raw materials, and a heating pipe (13) fixedly connected to the two inclined pipes (12) and used for heating.
3. A method of producing a trace element fertilizer as claimed in claim 2, wherein: the device also comprises end covers (21) fixedly connected to the two inclined pipes (12) and two material pushing frames (22) rotating on the two end covers (21).
4. A method of producing a trace element fertilizer as claimed in claim 2, wherein: the automatic forming machine is characterized by further comprising a support (31) for supporting the barrel (11), an indexing frame (32) which is rotated on the support (31), a plurality of bases (33) which are fixedly connected onto the indexing frame (32), and a plurality of forming spheres I (41) which are placed in the bases (33), wherein the forming spheres I (41) are in surface contact with a discharging port of the barrel (11) when rotating.
5. A method of producing a trace element fertilizer as claimed in claim 4, wherein: a plurality of all the rigid couplings have magnetic ball I (42) on shaping spheroid I (41), all the rigid couplings have with corresponding magnetic ball I (42) the magnetic ball II (34) that attracts mutually in a plurality of bases (33).
6. A method of producing a trace element fertilizer as claimed in claim 5, wherein: the rotary dividing device also comprises a sealing plate (51) fixedly connected to the dividing frame (32) and used for preventing raw materials in the barrel (11) from leaking when the plurality of forming spheres I (41) rotate.
7. A method of producing a trace-element fertilizer according to claim 6, characterized in that: the hollow particle processing device is characterized by further comprising an upper frame (71) fixedly connected to the support (31), a magnetic block (72) fixedly connected to the upper frame (71), a magnet (62) mutually attracted with the magnetic block (72), and a molded sphere II (61) fixedly connected to the magnet (62) and matched with the molded spheres I (41) to realize hollow particle processing.
8. A method of producing a trace element fertilizer as claimed in claim 7, wherein: the spherical ball forming machine further comprises an air cylinder (81) fixedly connected to the support (31), a fork-shaped frame (82) fixedly connected to an air cylinder rod of the air cylinder (81), and two driving wheels (83) which are rotatably arranged on the fork-shaped frame (82) and drive the corresponding forming spherical body I (41) to rotate.
9. A method of producing a trace element fertilizer as claimed in claim 8, wherein: be provided with the annular arch that is used for sealing on the shaping spheroid II (61), all be provided with on a plurality of shaping spheroids I (41) and realize sealed annular with the cooperation of annular arch.
10. A method of producing a trace element fertilizer as claimed in claim 9, wherein: the mixing device also comprises a mixing component which is arranged on the barrel (11) and is used for fully mixing the raw materials melted in the barrel (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210780412.6A CN115160027B (en) | 2022-07-04 | 2022-07-04 | Preparation method of trace element fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210780412.6A CN115160027B (en) | 2022-07-04 | 2022-07-04 | Preparation method of trace element fertilizer |
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| Publication Number | Publication Date |
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| CN115160027A true CN115160027A (en) | 2022-10-11 |
| CN115160027B CN115160027B (en) | 2024-07-05 |
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| CN202210780412.6A Active CN115160027B (en) | 2022-07-04 | 2022-07-04 | Preparation method of trace element fertilizer |
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| Country | Link |
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| CN (1) | CN115160027B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115594543A (en) * | 2022-10-29 | 2023-01-13 | 郑国庆（Cn） | Fertilizer and preparation method and application thereof |
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| KR20130111813A (en) * | 2012-04-02 | 2013-10-11 | (주) 케이투앤 | Device for lining a ball by resin in a ball-valve and lining method thereof |
| CN105541467A (en) * | 2015-12-20 | 2016-05-04 | 青岛嘉禾丰肥业有限公司 | Method and equipment for producing a slow-release fertilizer with multilayer structure |
| CN107827515A (en) * | 2017-10-31 | 2018-03-23 | 上海化工研究院有限公司 | A kind of production method and device of hollow granular water soluble fertilizer |
| CN211487568U (en) * | 2019-11-19 | 2020-09-15 | 安徽省农业科学院土壤肥料研究所 | Device for manufacturing spherical fertilizer |
| CN111941705A (en) * | 2019-05-17 | 2020-11-17 | 长兴县兴能耐火材料有限公司 | Fixing and forming device for processing heat-insulating material and using method thereof |
| CN114409462A (en) * | 2021-12-30 | 2022-04-29 | 李聚欣 | Fertilizer for improving crop yield and preparation method thereof |
-
2022
- 2022-07-04 CN CN202210780412.6A patent/CN115160027B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3907537A (en) * | 1973-10-30 | 1975-09-23 | Potters Industries Inc | Apparatus for producing glass spheres |
| CN102584425A (en) * | 2012-01-16 | 2012-07-18 | 尹明灯 | Large grained fertilizer granulation equipment |
| KR20130111813A (en) * | 2012-04-02 | 2013-10-11 | (주) 케이투앤 | Device for lining a ball by resin in a ball-valve and lining method thereof |
| CN105541467A (en) * | 2015-12-20 | 2016-05-04 | 青岛嘉禾丰肥业有限公司 | Method and equipment for producing a slow-release fertilizer with multilayer structure |
| CN107827515A (en) * | 2017-10-31 | 2018-03-23 | 上海化工研究院有限公司 | A kind of production method and device of hollow granular water soluble fertilizer |
| CN111941705A (en) * | 2019-05-17 | 2020-11-17 | 长兴县兴能耐火材料有限公司 | Fixing and forming device for processing heat-insulating material and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115594543A (en) * | 2022-10-29 | 2023-01-13 | 郑国庆（Cn） | Fertilizer and preparation method and application thereof |
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| CN115160027B (en) | 2024-07-05 |
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