Organic compound fertilizer, production device and production method

Abstract

The present invention provides an organic compound fertilizer, including an inner layer, an intermediate layer and an outer layer arranged in sequence from the inside to the outside, wherein the raw material of the inner layer is a compound fertilizer layer, the intermediate layer is an organic fertilizer layer, and the outer layer is a mixed structure of a viscose layer and mesh threads. The present invention proposes an organic compound fertilizer production device, including a first granulation component, a second granulation component and a third granulation component arranged in sequence. An organic compound fertilizer production method is also proposed, including three steps of compound fertilizer granulation, organic fertilizer wrapping and overall molding. The present invention adds an outer layer structure combining a viscose layer and a mesh thread to strengthen the connection strength between organic fertilizers, avoid cracking during the decomposition process, and achieve a long-term slow release effect; multiple fertilizer particles are connected together by mesh threads, which has better anti-loss performance; the outer viscose layer dissolves after encountering water, allowing the fertilizer particles to be more closely connected to the soil, and correspondingly also enhances the ability to resist floods and prevent loss.

Description

Technical Field

[0001] The invention relates to the technical field of organic fertilizer production, and in particular to an organic compound fertilizer, a production device and a production method. Background Art

[0002] Chemical fertilizers have laid a material foundation for the production and development of modern agriculture and for ensuring human food security. However, the low utilization rate of chemical fertilizers and the resulting high environmental risks have always been a major problem that has plagued the world. At present, due to the growth of agricultural and fertilizer use worldwide, the dependence on pesticides and fertilizers has increased, resulting in a series of problems such as insufficient use of organic fertilizers, imbalance of soil nutrient ratios, soil compaction, soil quality decline, and river and groundwater pollution. To avoid repeating the mistakes of developed countries of "first pollution and destruction, then governance" and to develop a new "sustainable development" agriculture, it is necessary to reduce the use of pesticides and fertilizers and find effective alternatives.

[0003] At present, countries around the world are actively exploring ways and means to improve fertilizer utilization and curb environmental pollution. In recent years, the above goals have been achieved mainly by changing nutrient release characteristics and improving fertilizer functions. First, by modifying the fertilizer nutrient release mode, fertilizer efficiency can be improved and pollution can be reduced; second, by combining organic and inorganic fertilizers, fertilizer efficiency can be improved and pollution can be reduced; third, by developing formula fertilizers and improving fertilizer functions, fertilizer efficiency can be improved and pollution can be reduced. In particular, the research and development of slow-release fertilizers and organic and inorganic fertilizer combinations have become current hot topics.

[0004] The Chinese invention patent with publication number CN117247300A proposes a preparation method and application of an organic-inorganic micro-particle compound fertilizer, including a slow-release layer and a quick-release layer arranged in sequence from the inside to the outside; the quick-release layer includes the following components by weight: 4-6 parts of nitrogen-potassium compound fertilizer, 1-5 parts of dipotassium hydrogen phosphate, 8-10 parts of urea, 0.4-0.5 parts of boric acid, 0.3-0.5 parts of EDTA-Fe, and 0.1-0.2 parts of starch; the slow-release layer includes the following components by weight: 7-10 parts of formaldehyde urea, 10-20 parts of trehalose-modified humic acid, and 0.4-0.5 parts of slow-release acid-regulating substances. Through the two-step granulation of the quick-release layer and the slow-release layer, the mixed use of a large number of elements is avoided, the soil compaction and fertility reduction are prevented, the fertility utilization rate is further improved, and the fertilizer effect time is further increased.

[0005] That is, in the prior art, inorganic fertilizer is mainly used as a quick-release layer, and organic fertilizer is used as a slow-release layer, and the slow-release layer is wrapped around the outside of the quick-release layer, so as to achieve the effect of combining organic and inorganic fertilizers, and at the same time releasing fertility for a long time and efficiently through the slow-release effect. However, this fertilizer structure itself has certain problems when used, that is, the external slow-release layer is organic fertilizer, and organic fertilizer is usually decomposed and fermented plant residues, which causes the organic fertilizer to continue to ferment and decompose during use, and release gases such as carbon dioxide, which will destroy the connectivity between the organic fertilizers, causing the slow-release layer to quickly disintegrate and rupture during the decomposition process, rather than slowly decomposing from the outside to the inside. Thereby quickly exposing the internal quick-release layer, and losing the fertilizer effect function of slow release first and then quick release from the mechanism.

[0006] In addition, after organic fertilizer and inorganic fertilizer are combined to make granular slow-release fertilizer, it needs to remain in the soil for a long time to play a slow-release function. However, for some areas with abundant rainfall, granular fertilizer buried in the soil can easily be washed away from the soil due to factors such as heavy rain, causing the fertilizer to leave the fertilization area before its effect is fully released, which in turn causes crops to be unable to absorb enough nutrients. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides an organic compound fertilizer, a production device and a production method, which solve the problems in the prior art that the outer layer of the organic fertilizer slow-release portion is prone to disintegration and rupture during the decomposition process, resulting in premature exposure of the quick-release layer and loss of the slow-release function, and the granular slow-release fertilizer is easily lost due to rain erosion, resulting in incomplete release of the fertilizer effect.

[0008] In a first aspect, the present invention proposes an organic compound fertilizer, which is a spherical particle, including an inner layer, a middle layer and an outer layer arranged in sequence from the inside to the outside, the inner layer raw material is a compound fertilizer layer, the middle layer is an organic fertilizer layer, and the outer layer is a mixed structure of a viscose layer and a mesh silk thread.

[0009] Preferably, the material of the adhesive layer includes one of PVA, fish glue, gelatin or starch glue.

[0010] Furthermore, different parts of the mesh wire are respectively embedded in the outer layers of a plurality of organic compound fertilizers, so that a plurality of organic compound fertilizers are connected into a whole through the mesh wire.

[0011] In a second aspect, the present invention proposes a device for producing the above-mentioned organic compound fertilizer, comprising a first granulation component, a second granulation component and a third granulation component arranged in sequence, wherein the first granulation component is used to prepare compound fertilizer particles, the second granulation component is used to wrap organic fertilizer on the outside of the compound fertilizer particles, and the third granulation component is used to wrap a viscose layer and a mesh wire on the outside of the mixed particles of organic fertilizer and compound fertilizer.

[0012] Furthermore, the first granulation assembly includes a first granulator and a compound fertilizer weighing feeder arranged above the first granulator, and the discharge port of the compound fertilizer weighing feeder is aligned with the interior of the first granulator.

[0013] Furthermore, the second granulation assembly includes a second granulator and an organic fertilizer weighing feeder arranged above the first granulator, a conveyor belt is provided at the outlet of the first granulator to connect to the second granulator, and the discharge port of the organic fertilizer weighing feeder is aligned with the inside of the second granulator.

[0014] Furthermore, the third granulation component includes a third granulator and a viscose feeder and a mesh wire delivery mechanism arranged above the first granulator. A conveyor belt is provided at the outlet of the second granulator and connected to the third granulator. The discharge port of the mesh wire delivery mechanism is aligned with the interior of the third granulator, and the discharge port of the viscose feeder is aligned with the contact position when the mesh wire just enters the interior of the third granulator.

[0015] Furthermore, the mesh wire delivery mechanism includes a shell, a reel-out roller horizontally arranged inside the shell, and a cutting mechanism arranged at the bottom of the shell. An opening is arranged at the bottom of the shell so that the mesh wire winding end arranged on the reel-out roller can leave from the bottom, and the cutting mechanism is arranged corresponding to the opening position.

[0016] In a third aspect, the present invention provides a method for producing the above-mentioned organic compound fertilizer by the above-mentioned device, comprising the following steps:

[0017] S1. Compound fertilizer granulation: putting compound fertilizer powder raw material into the first granulator, adding water to moisten and granulate to obtain compound fertilizer granules;

[0018] S2, organic fertilizer wrapping: placing compound fertilizer particles into the second granulator, then adding organic fertilizer powder, and adding water to wet for granulation, wrapping the organic fertilizer with the compound fertilizer particles as the core to form mixed particles;

[0019] S3. Overall forming: the mixed particles are placed in a third granulator, and then mesh wires and viscose are added, and granulation is performed directly without adding water. Part of the mesh wires are wrapped around the outside of the mixed particles by the viscose, so that different positions of each mesh wire are respectively connected to multiple mixed particles, thereby forming an organic compound fertilizer granule product.

[0020] Furthermore, in step S3, the mixed particles in the third granulator are first sprayed with viscose so that a small amount of viscose is coated on the outer layer of the mixed particles, and then the mesh wires are put in and granulated for a period of time so that the mixed particles are partially combined with the mesh wires through the viscose, and then the viscose is sprayed toward the position of the mesh wires so that the viscose layer completely buries the mesh wires inside.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, an outer layer structure combining a viscose layer and mesh threads is added to the outside of the traditional inorganic fertilizer and organic fertilizer slow-release fertilizer particles, and the middle layer of the slow-release organic fertilizer is strengthened by the viscose layer, so that the binding ability between the internal materials is stronger; and the mesh threads further strengthen the structural strength of the outer layer, so that the outer layer can further penetrate into the organic fertilizer in the middle through the effect of aqueous dissolution after the fertilizer is released, and the mesh threads are combined with the gradually decomposed organic fertilizer to strengthen the connection strength between the organic fertilizers, so as to avoid the organic fertilizers from cracking during the decomposition process, thereby maintaining the slow-release function of the organic fertilizer slow-release layer and achieving the effect of long-term slow release;

[0023] 2. In the present invention, multiple fertilizer particles are connected together by mesh silk threads, so that there is a reliable connection between the fertilizer particles. Even if they are washed by heavy rain, they can be fixed to plant roots, stones and other fixed objects under the connection of the mesh silk threads, so as to remain in the original position, and have better anti-loss performance; in addition, the outer viscose layer will dissolve after encountering water, and will also bond the middle layer to the soil particles, so that the fertilizer particles are more tightly connected to the soil, and correspondingly enhance the ability to resist floods and prevent loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a cross-sectional view of an organic compound fertilizer particle according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of connecting organic compound fertilizer particles according to an embodiment of the present invention.

[0026] Figure 3 Schematic diagram of a production device according to an embodiment of the present invention.

[0027] Figure 4 It is a schematic structural diagram of a mesh wire delivery mechanism in a production device according to an embodiment of the present invention.

[0028] In the above drawings: 1. organic compound fertilizer granules; 2. mesh wire; 3. first granulator; 4. compound fertilizer weighing feeder; 5. second granulator; 6. organic fertilizer weighing feeder; 7. third granulator; 8. mesh wire delivery mechanism; 9. viscose feeder; 11. inner layer; 12. middle layer; 13. outer layer; 81. shell; 82. unwinding roller; 83. opening; 84. punching blade. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0030] Embodiment 1:

[0031] like Figure 1 As shown, an embodiment of the present invention proposes an organic compound fertilizer, which is a spherical particle, including an inner layer 11, a middle layer 12 and an outer layer 13 arranged in sequence from the inside to the outside, the raw material of the inner layer 11 is a compound fertilizer layer, the middle layer 12 is an organic fertilizer layer, and the outer layer 13 is a mixed structure of a viscose layer and a mesh wire 2.

[0032] The material of the adhesive layer is PVA.

[0033] like Figure 2 As shown, different parts of the mesh wire 2 are respectively embedded in the outer layers 13 of a plurality of organic compound fertilizers, so that a plurality of organic compound fertilizers are connected into a whole through the mesh wire 2.

[0034] A device for producing organic compound fertilizer in an embodiment of the present invention comprises a first granulation assembly, a second granulation assembly and a third granulation assembly which are arranged in sequence, wherein the first granulation assembly is used to prepare compound fertilizer particles, the second granulation assembly is used to wrap organic fertilizer on the outside of the compound fertilizer particles, and the third granulation assembly is used to wrap a viscose layer and a mesh wire 2 on the outside of mixed particles of organic fertilizer and compound fertilizer.

[0035] In a specific scheme, the first granulation assembly includes a first granulator 3 and a compound fertilizer weighing feeder 4 arranged above the first granulator 3, and the discharge port of the compound fertilizer weighing feeder 4 is aligned with the inside of the first granulator 3. The second granulation assembly includes a second granulator 5 and an organic fertilizer weighing feeder 6 arranged above the first granulator 3, a conveyor belt is provided at the outlet of the first granulator 3 to connect to the second granulator 5, and the discharge port of the organic fertilizer weighing feeder 6 is aligned with the inside of the second granulator 5. The third granulation assembly includes a third granulator 7 and a viscose feeder 9 and a mesh wire 2 delivery mechanism arranged above the first granulator 3, a conveyor belt is provided at the outlet of the second granulator 5 to connect to the third granulator 7, the discharge port of the mesh wire 2 delivery mechanism is aligned with the inside of the third granulator 7, and the discharge port of the viscose feeder 9 is aligned with the contact position of the mesh wire 2 when it just enters the inside of the third granulator 7.

[0036] It should be noted that the first granulator 3, the second granulator 5, and the third granulator 7 are arranged in a stepped manner in the present invention, and part of them overlap up and down in sequence, so that they are connected end to end. A sprayer is provided on one side of the first granulator 3, the second granulator 5, and the third granulator 7 for adding water and wetting. At the same time, the compound fertilizer weighing feeder 4 and the organic fertilizer weighing feeder 6 all adopt the quantitative feeder in the prior art, which will not be repeated here. The viscose feeder 9 adopts a combination of a closed container and a high-pressure nozzle, and the liquid viscose stored in the closed container is sprayed into the third granulator 7 by the high-pressure nozzle.

[0037] Preferably, the mesh wire 2 delivery mechanism comprises a housing 81, a roll-out roller 82 horizontally arranged inside the housing 81, and a cutting mechanism arranged at the bottom of the housing 81. The housing 81 is provided with an opening 83 at the bottom, so that the mesh wire 2 wound on the roll-out roller 82 can leave from the bottom, and the cutting mechanism is arranged at a position corresponding to the opening 83. The cutting device adopts a horizontally arranged punching blade 84 structure. When the bottom end of the mesh wire 2 roll leaves the opening 83 for a certain distance, the punching blade 84 cuts it off, and the mesh wire 2 below falls into the third granulator 7.

[0038] A method for producing organic compound fertilizer in an embodiment of the present invention comprises the following steps:

[0039] S1, compound fertilizer granulation: the compound fertilizer powder raw material is put into the first granulator 3, the speed is set to 500 rpm, water is added to control the humidity at 70% and granulation is performed to obtain compound fertilizer granules;

[0040] S2, organic fertilizer wrapping: placing the compound fertilizer particles into the second granulator 5, setting the rotation speed to 500 rpm, adding water to control the humidity at 70% and granulating, wrapping the organic fertilizer with the compound fertilizer particles as the core to form mixed particles;

[0041] S3, overall forming: the mixed particles are placed in the third granulator 7, the speed is set to 500 rpm, and then the mesh wires 2 and viscose are added, and granulation is directly performed without adding water, and the mesh wires 2 are partially wrapped around the outside of the mixed particles by the viscose, so that different positions of each mesh wire 2 are respectively connected to multiple mixed particles, thereby forming an organic compound fertilizer granule 1 product.

[0042] In step S3, first, the mixed particles in the third granulator 7 are sprayed with viscose so that a small amount of viscose is coated on the outer layer of the mixed particles, and then the mesh wire 2 is put in. After granulation for a period of time, the mixed particles are partially combined with the mesh wire 2 through the viscose, and then the viscose is sprayed toward the position of the mesh wire 2 so that the viscose layer completely buries the mesh wire 2 inside.

[0043] Embodiment 2:

[0044] The device used in this embodiment is the same as that in embodiment 1.

[0045] The structure of an organic compound fertilizer in this embodiment is substantially the same as that in Embodiment 1, except that the material of the adhesive layer is starch glue.

[0046] A method for producing organic compound fertilizer in this embodiment includes the following steps:

[0047] S1, compound fertilizer granulation: the compound fertilizer powder raw material is put into the first granulator 3, the speed is set to 650 rpm, water is added to control the humidity at 80% and granulation is performed to obtain compound fertilizer granules;

[0048] S2, organic fertilizer wrapping: placing the compound fertilizer particles into the second granulator 5, setting the rotation speed to 650 rpm, adding water to control the humidity at 80% and granulating, wrapping the organic fertilizer with the compound fertilizer particles as the core to form mixed particles;

[0049] S3, overall forming: the mixed particles are placed in the third granulator 7, the speed is set to 650 rpm, and then the mesh wires 2 and viscose are added, and granulation is directly performed without adding water, and the mesh wires 2 are partially wrapped around the outside of the mixed particles by the viscose, so that different positions of each mesh wire 2 are respectively connected to multiple mixed particles, thereby forming an organic compound fertilizer granule 1 product.

[0050] In step S3, first, the mixed particles in the third granulator 7 are sprayed with viscose so that a small amount of viscose is coated on the outer layer of the mixed particles, and then the mesh wire 2 is put in. After granulation for a period of time, the mixed particles are partially combined with the mesh wire 2 through the viscose, and then the viscose is sprayed toward the position of the mesh wire 2 so that the viscose layer completely buries the mesh wire 2 inside.

[0051] Embodiment 3:

[0052] The device used in this embodiment is the same as that in embodiment 1.

[0053] The structure of an organic compound fertilizer in this embodiment is substantially the same as that in Embodiment 1, except that the material of the adhesive layer is a mixture of isinglass and gelatin in equal proportions.

[0054] A method for producing organic compound fertilizer in this embodiment includes the following steps:

[0055] S1, compound fertilizer granulation: the compound fertilizer powder raw material is put into the first granulator 3, the speed is set to 550 rpm, water is added to control the humidity at 75% and granulation is performed to obtain compound fertilizer granules;

[0056] S2, organic fertilizer wrapping: placing the compound fertilizer particles into the second granulator 5, setting the rotation speed to 550 rpm, adding water to control the humidity at 75% and granulating, wrapping the organic fertilizer with the compound fertilizer particles as the core to form mixed particles;

[0057] S3, overall forming: the mixed particles are placed in the third granulator 7, the speed is set to 550 rpm, and then the mesh wires 2 and viscose are added, and granulation is directly performed without adding water, and the mesh wires 2 are partially wrapped around the outside of the mixed particles by the viscose, so that different positions of each mesh wire 2 are respectively connected to multiple mixed particles, thereby forming an organic compound fertilizer granule 1 product.

[0058] In step S3, first, the mixed particles in the third granulator 7 are sprayed with viscose so that a small amount of viscose is coated on the outer layer of the mixed particles, and then the mesh wire 2 is put in. After granulation for a period of time, the mixed particles are partially combined with the mesh wire 2 through the viscose, and then the viscose is sprayed toward the position of the mesh wire 2 so that the viscose layer completely buries the mesh wire 2 inside.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An organic compound fertilizer, the organic compound fertilizer is a spherical particle, characterized in that: It comprises an inner layer, a middle layer and an outer layer which are arranged in sequence from the inside to the outside. The raw material of the inner layer is a compound fertilizer layer, the middle layer is an organic fertilizer layer, and the outer layer is a mixed structure of a viscose layer and mesh silk threads.

2. The organic compound fertilizer according to claim 1, wherein: The material of the adhesive layer includes one of PVA, fish glue, gelatin or starch glue.

3. The organic compound fertilizer according to claim 1, wherein: Different parts of the mesh wire are respectively embedded in the outer layers of a plurality of organic compound fertilizers, so that a plurality of organic compound fertilizers are connected into a whole through the mesh wire.

4. A device for producing the organic compound fertilizer according to claim 1, characterized in that: The invention comprises a first granulation component, a second granulation component and a third granulation component which are arranged in sequence, wherein the first granulation component is used for preparing compound fertilizer particles, the second granulation component is used for wrapping organic fertilizer outside the compound fertilizer particles, and the third granulation component is used for wrapping a viscose layer and mesh threads outside the mixed particles of organic fertilizer and compound fertilizer.

5. The production device according to claim 4, characterized in that: The first granulation assembly comprises a first granulator and a compound fertilizer weighing feeder arranged above the first granulator, and the discharge port of the compound fertilizer weighing feeder is aligned with the interior of the first granulator.

6. The production device according to claim 4, characterized in that: The second granulation assembly includes a second granulator and an organic fertilizer weighing feeder arranged above the first granulator. A conveyor belt is provided at the outlet of the first granulator and connected to the second granulator. The discharge port of the organic fertilizer weighing feeder is aligned with the inside of the second granulator.

7. The production device according to claim 4, characterized in that: The third granulation assembly includes a third granulator and a viscose feeder and a mesh wire delivery mechanism arranged above the first granulator. A conveyor belt is provided at the outlet of the second granulator and connected to the third granulator. The discharge port of the mesh wire delivery mechanism is aligned with the interior of the third granulator, and the discharge port of the viscose feeder is aligned with the contact position when the mesh wire just enters the interior of the third granulator.

8. The production device according to claim 7, characterized in that: The mesh wire delivery mechanism includes a shell, a reel-out roller horizontally arranged inside the shell, and a cutting mechanism arranged at the bottom of the shell. The bottom of the shell is provided with an opening so that the mesh wire winding end arranged on the reel-out roller can leave from the bottom, and the cutting mechanism is arranged corresponding to the opening position.

9. A method for producing the organic compound fertilizer according to claim 1 using the device according to claim 4, characterized in that: The steps include: S1. Compound fertilizer granulation: putting compound fertilizer powder raw material into the first granulator, adding water to moisten and granulate to obtain compound fertilizer granules; S2, organic fertilizer wrapping: placing compound fertilizer particles into the second granulator, then adding organic fertilizer powder, and adding water to wet for granulation, wrapping the organic fertilizer with the compound fertilizer particles as the core to form mixed particles; S3. Overall forming: the mixed particles are placed in a third granulator, and then mesh wires and viscose are added, and granulation is performed directly without adding water. Part of the mesh wires are wrapped around the outside of the mixed particles by the viscose, so that different positions of each mesh wire are respectively connected to multiple mixed particles, thereby forming an organic compound fertilizer granule product.

10. The production method according to claim 9, characterized in that: In step S3, firstly, viscose is sprayed on the mixed particles in the third granulator so that a small amount of viscose is coated on the outer layer of the mixed particles, and then the mesh wires are put in and granulated for a period of time so that the mixed particles are partially combined with the mesh wires through the viscose, and then viscose is sprayed toward the mesh wires so that the viscose layer completely buries the mesh wires inside.

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