A production process and equipment of graphene agricultural compound fertilizer

Abstract

The invention discloses a graphene agricultural compound fertilizer production process and equipment, including the following production process flow: S1, the large-particle raw material powder of each component of the compound fertilizer is put into a pulverizer, and the powder is pulverized in the pulverizer. The particle size after pulverization is about 0.1-2mm, and the production efficiency is about 100-1000kg / h. The rotating speed of the pulverizing blade in the pulverizer is 4000-5000rpm, and the raw material after pulverization enters a cyclone collector. The graphene compound fertilizer prepared by the present invention has simple process and easy operation, low cost, high economic benefit, and is suitable for large-scale industrial production. The graphene compound fertilizer can provide various nutrients needed for crop production, and graphene also has antibacterial and heavy metal adsorption effects. The antibacterial effect of graphene can reduce the diseases caused by pathogens during the growth of crops, and after graphene adsorbs heavy metals, it can also reduce heavy metals in the soil and reduce the absorption of crops, thereby improving the quality of crops.

Description

Technical Field

[0001] The invention relates to the technical field of compound fertilizers, and in particular to a production process and equipment for graphene agricultural compound fertilizers. Background Art

[0002] Compound fertilizer refers to chemical fertilizer containing two or more nutrients. Compound fertilizer has the advantages of high nutrient content, few by-components and good physical properties. It plays a very important role in balanced fertilization, improving fertilizer utilization and promoting high and stable yields of crops.

[0003] The traditional compound fertilizer production process is relatively complicated and troublesome, and the production cost is high. It cannot reduce the impact of heavy metals in the soil on crops, and it cannot reduce diseases caused by vegetable pathogens. For this reason, we provide a graphene agricultural compound fertilizer production process and equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a graphene agricultural compound fertilizer production process and equipment to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a production process of graphene agricultural compound fertilizer, comprising the following production process flow:

[0006] S1. Put the large-particle raw material powders of each component of the compound fertilizer into a pulverizer and pulverize them in the pulverizer. The particle size after pulverization is about 0.1-2 mm, the production efficiency is about 100-1000 kg / h, the rotation speed of the pulverizing blade in the pulverizer is 4000-5000 rpm, and the pulverized raw materials enter the cyclone collector, and then fall into the collection shell through the cyclone collector for collection;

[0007] S2, placing the collected raw materials in a mixer, mixing them through a stirring structure, spraying water mist from the atomizing nozzle 13, so that the raw materials can be bonded together under the action of external force, and then continuously mixing and stirring;

[0008] S3, discharge the material after stirring in the above S2 into the interior of the granulator, extrude and granulate to obtain the graphene compound fertilizer, and at the same time, pelletize the graphene compound fertilizer through the pelletizing component, and dry it through the dryer after pelletizing, the drying temperature is 50-100° C. The granulator 7 can reach an output of 100-500kg / h according to demand.

[0009] Preferably, the components of the compound fertilizer include the following components by mass percentage: 40-60% nitrogen, 5%-40% potassium, 10%-30% phosphorus, 0.1%-5% modifier, and 0.1%-15% carbon.

[0010] Preferably, nitrogen 40%, potassium 5%, phosphorus 10%, modifier 0.1%, and carbon 0.1%.

[0011] Preferably, nitrogen is 50%, potassium is 25%, phosphorus is 20%, modifier is 3%, and carbon is 8%.

[0012] Preferably, nitrogen is 60%, potassium is 40%, phosphorus is 30%, modifier is 5%, and carbon is 15%.

[0013] A graphene agricultural compound fertilizer production device comprises a bottom plate and a cyclone collector, wherein a pulverizer is arranged above the bottom plate, the bottom of the pulverizer is connected to the cyclone collector through a pipeline, a pulse dust collector is arranged on the right side of the cyclone collector, a fan is installed on the left side of the pulse dust collector, a connector is connected to the left side of the fan through a pipeline, the top and bottom of the connector are respectively connected to the pulverizing device and the cyclone collector through fixed pipes, a pulverizing blade is arranged inside the pulverizer, and a collection shell is arranged below the cyclone collector.

[0014] Preferably, it also includes a granulator and a dryer, the granulator is installed on the top of the bottom plate and is located on the right side of the pulse dust collector, a mixer is arranged on the top of the granulator, the right side of the mixer is fixedly connected to the top of the granulator through a mounting plate, a water tank is installed on the right side of the mounting plate, a water pump is installed on the top of the mounting plate, an atomizing nozzle is installed on the top of the inner wall of the mixer, and the water pump is connected to the atomizing nozzle through a pipe.

[0015] Preferably, the dryer is installed on the top of the bottom plate and is located on the right side of the granulator, the right end of the granulator discharge pipe passes through the dryer and extends into the interior thereof, and a pelletizing assembly is provided on the left side of the inner wall of the dryer.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The graphene compound fertilizer prepared by the present invention has simple process, easy operation, low cost, high economic benefit, and is suitable for large-scale industrial production. The graphene compound fertilizer can provide various nutrients required for crop production. At the same time, graphene also has antibacterial and heavy metal adsorption effects. The antibacterial effect of graphene can reduce diseases caused by pathogens during the growth of crops, and after graphene adsorbs heavy metals, it can also reduce heavy metals in the soil and reduce the absorption of crops, thereby improving the quality of crops. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a structural cross-sectional view of the front view of the bottom plate, pulverizer, cyclone collector and pulse dust collector of the present invention;

[0020] Figure 3 It is a structural cross-sectional view of the front view of the bottom plate, granulator, dryer, mixer and atomizing nozzle of the present invention.

[0021] In the figure: 1 bottom plate, 2 crusher, 3 cyclone collector, 4 pulse dust collector, 5 fan, 6 connector, 7 granulator, 8 dryer, 9 mixer, 10 mounting plate, 11 water tank, 12 water pump, 13 atomizing nozzle, 14 crushing motor, 15 bracket, 16 discharge pipe, 17 stirring motor, 18 stirring rod, 19 heating plate, 20 storage shell, 100 crushing blade, 101 collection shell, 102 pelletizing assembly, 103 fixed tube, 91 electric push rod, 92 cutter, 93 base. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1

[0024] See also Figure 1-3 , a graphene agricultural compound fertilizer production process, including the following production process flow:

[0025] S1. Put the large-particle raw material powders of each component of the compound fertilizer into the pulverizer 2, and pulverize them in the pulverizer 2. The particle size after pulverization is about 0.1 mm, and the production efficiency is about 100 kg / h. The rotation speed of the pulverizing blade 100 in the pulverizer 2 is 4000 rpm. The pulverized raw materials enter the cyclone collector 3, and then fall into the collection shell 101 through the cyclone collector 3 for collection;

[0026] S2, placing the collected raw materials in a mixer 9, mixing them through a stirring structure, spraying water mist from an atomizing nozzle 13, so that the raw materials can be bonded together under the action of an external force, and then continuously mixing and stirring;

[0027] S3, discharge the material after stirring in the above S2 into the interior of the granulator 7, extrude and granulate to obtain the graphene compound fertilizer, and at the same time, the graphene compound fertilizer is granulated by the granulating component 102, and after granulation, it is dried by the dryer 8, and the drying temperature is 50°C. The granulator 7 can achieve an output of 100kg / h according to demand.

[0028] The components of the compound fertilizer are calculated by mass percentage and include the following components: 40% nitrogen, 5% potassium, 10% phosphorus, 0.1% modifier and 0.1% carbon.

[0029] Furthermore, the nitrogen-containing raw materials include one or more of ammonium carbonate, urea, ammonium sulfate, and ammonium chloride; the potassium-containing raw materials include one or more of potassium chloride, potassium sulfate, potassium humate, amino acid potassium, inorganic potassium fertilizer or organic potassium fertilizer; the phosphorus-containing raw materials include one or more of ammonium phosphate, diammonium phosphate, heavy superphosphate, and calcium magnesium phosphate; and the modifier is one or more of polyvinyl alcohol, sodium lignin sulfonate, polyvinyl pyrrolidone (PVP), polyethylene glycol, and a silane coupling agent.

[0030] Furthermore, graphene is prepared by one or more of the following methods: chemical vapor deposition, mechanical exfoliation, oxidation-reduction method, electrochemical method, etc.

[0031] A graphene agricultural compound fertilizer production device comprises a bottom plate 1 and a cyclone collector 3, wherein a pulverizer 2 is arranged above the bottom plate 1, a feeding cover is arranged on the top of the pulverizer 2, the bottom of the pulverizer 2 is connected to the cyclone collector 3 through a pipeline, a valve is arranged on the pipeline, a pulse dust collector 4 is arranged on the right side of the cyclone collector 3, the cyclone collector 3 is installed on the top of the bottom plate 1 through a bracket 15, the pulse dust collector 4 is installed on the bracket 15, an air outlet pipe at the bottom of a fan 5 is connected to the pulse dust collector 4, a fan 5 is installed on the left side of the pulse dust collector 4, a connector 6 is connected to the left side of the fan 5 through a pipeline, the top and bottom of the connector 6 are respectively connected to the pulverizing device 2 and the cyclone collector 3 through a fixed pipe 103, a pulverizing blade 100 is arranged inside the pulverizer 2, a collecting shell 101 is arranged below the cyclone collector 3, and the bottom of the collecting shell 101 is in contact with the top of the bottom plate 1.

[0032] The invention also includes a granulator 7 and a dryer 8. The granulator 7 is installed on the top of the bottom plate 1 and is located on the right side of the pulse dust collector 4. A stirrer 9 is arranged on the top of the granulator 7. A feeding cover is arranged on the top of the stirrer 9. The bottom end of the stirrer 9 is connected to the granulator 7 through a discharge pipe 16. A valve is arranged on the discharge pipe 16. The bottom of the stirrer 9 is fixedly connected to the top of the granulator 7 through two supporting blocks. A stirring motor 17 is installed on the top of the stirrer 9. The bottom end of the output shaft of the stirring motor 17 passes through the stirrer 9 and extends to the inside thereof. A stirring rod 18 is installed on the bottom end of the output shaft of the stirring motor 17. The right side of the mixer 9 is fixedly connected to the top of the granulator 7 through a mounting plate 10, a water tank 11 is installed on the right side of the mounting plate 10, a water pump 12 is installed on the top of the mounting plate 10, the water pump 12 is connected to the water tank 11 through a suction pipe, a water filling cover is provided on the top of the water tank 11, an atomizing nozzle 13 is installed on the top of the inner wall of the mixer 9, the water pump 12 is connected to the atomizing nozzle 13 through a pipeline, the dryer 8 is installed on the top of the base plate 1 and is located on the right side of the granulator 7, the right end of the discharge pipe of the granulator 7 passes through the dryer 8 and extends into the interior thereof, and a pelletizing assembly 102 is provided on the left side of the inner wall of the dryer 8.

[0033] Furthermore, the pelletizing assembly 102 includes an electric push rod 91, a cutter 92 and a base 93. The electric push rod 91 is fixedly connected to the left side of the inner wall of the dryer 8 through a stabilizing block, the bottom end of the electric push rod 91 is fixedly connected to the cutter 92, and the base 93 is installed on the left side of the inner wall of the dryer 8.

[0034] Furthermore, a heating plate 19 is installed on the right side of the inner wall of the dryer 8, and a storage shell 20 is provided on the inner wall of the dryer 8. The surface of the storage shell 20 is in contact with the inner wall of the dryer 8. A movable door is movably connected to the front of the dryer 8 through a hinge. The movable door can be opened to facilitate the removal of the storage shell 20.

[0035] From the above, it can be seen that the production efficiency is low and the quality of the produced graphene compound fertilizer is poor.

[0036] Implementation column 2

[0037] See also Figure 1-3 , a graphene agricultural compound fertilizer production process, including the following production process flow:

[0038] S1. Put the large-particle raw material powders of each component of the compound fertilizer into the pulverizer 2, and pulverize them in the pulverizer 2. The particle size after pulverization is about 1 mm, and the production efficiency is about 550 kg / h. The rotation speed of the pulverizing blade 100 in the pulverizer 2 is 4500 rpm. The pulverized raw materials enter the cyclone collector 3, and then fall into the collection shell 101 through the cyclone collector 3 for collection;

[0039] S2, placing the collected raw materials in a mixer 9, mixing them through a stirring structure, spraying water mist from an atomizing nozzle 13, so that the raw materials can be bonded together under the action of an external force, and then continuously mixing and stirring;

[0040] S3, discharge the material after stirring in the above S2 into the interior of the granulator 7, extrude and granulate to obtain the graphene compound fertilizer, and at the same time, the graphene compound fertilizer is granulated by the granulating component 102, and after granulation, it is dried by the dryer 8, and the drying temperature is 75°C. The granulator 7 can reach an output of 250kg / h according to demand.

[0041] The components of the compound fertilizer are calculated by mass percentage and include the following components: 50% nitrogen, 25% potassium, 20% phosphorus, 3% modifier and 8% carbon.

[0042] Furthermore, the nitrogen-containing raw materials include one or more of ammonium carbonate, urea, ammonium sulfate, and ammonium chloride; the potassium-containing raw materials include one or more of potassium chloride, potassium sulfate, potassium humate, amino acid potassium, inorganic potassium fertilizer or organic potassium fertilizer; the phosphorus-containing raw materials include one or more of ammonium phosphate, diammonium phosphate, heavy superphosphate, and calcium magnesium phosphate; and the modifier is one or more of polyvinyl alcohol, sodium lignin sulfonate, polyvinyl pyrrolidone (PVP), polyethylene glycol, and a silane coupling agent.

[0043] Furthermore, graphene is prepared by one or more of the following methods: chemical vapor deposition, mechanical exfoliation, oxidation-reduction method, electrochemical method, etc.

[0044] A graphene agricultural compound fertilizer production device comprises a bottom plate 1 and a cyclone collector 3, wherein a pulverizer 2 is arranged above the bottom plate 1, a feeding cover is arranged on the top of the pulverizer 2, the bottom of the pulverizer 2 is connected to the cyclone collector 3 through a pipeline, a valve is arranged on the pipeline, a pulse dust collector 4 is arranged on the right side of the cyclone collector 3, the cyclone collector 3 is installed on the top of the bottom plate 1 through a bracket 15, the pulse dust collector 4 is installed on the bracket 15, an air outlet pipe at the bottom of a fan 5 is connected to the pulse dust collector 4, a fan 5 is installed on the left side of the pulse dust collector 4, a connector 6 is connected to the left side of the fan 5 through a pipeline, the top and bottom of the connector 6 are respectively connected to the pulverizing device 2 and the cyclone collector 3 through a fixed pipe 103, a pulverizing blade 100 is arranged inside the pulverizer 2, a collecting shell 101 is arranged below the cyclone collector 3, and the bottom of the collecting shell 101 is in contact with the top of the bottom plate 1.

[0045] The invention also includes a granulator 7 and a dryer 8. The granulator 7 is installed on the top of the bottom plate 1 and is located on the right side of the pulse dust collector 4. A stirrer 9 is arranged on the top of the granulator 7. A feeding cover is arranged on the top of the stirrer 9. The bottom end of the stirrer 9 is connected to the granulator 7 through a discharge pipe 16. A valve is arranged on the discharge pipe 16. The bottom of the stirrer 9 is fixedly connected to the top of the granulator 7 through two supporting blocks. A stirring motor 17 is installed on the top of the stirrer 9. The bottom end of the output shaft of the stirring motor 17 passes through the stirrer 9 and extends to the inside thereof. A stirring rod 18 is installed on the bottom end of the output shaft of the stirring motor 17. The right side of the mixer 9 is fixedly connected to the top of the granulator 7 through a mounting plate 10, a water tank 11 is installed on the right side of the mounting plate 10, a water pump 12 is installed on the top of the mounting plate 10, the water pump 12 is connected to the water tank 11 through a suction pipe, a water filling cover is provided on the top of the water tank 11, an atomizing nozzle 13 is installed on the top of the inner wall of the mixer 9, the water pump 12 is connected to the atomizing nozzle 13 through a pipeline, the dryer 8 is installed on the top of the base plate 1 and is located on the right side of the granulator 7, the right end of the discharge pipe of the granulator 7 passes through the dryer 8 and extends into the interior thereof, and a pelletizing assembly 102 is provided on the left side of the inner wall of the dryer 8.

[0046] Furthermore, the pelletizing assembly 102 includes an electric push rod 91, a cutter 92 and a base 93. The electric push rod 91 is fixedly connected to the left side of the inner wall of the dryer 8 through a stabilizing block, the bottom end of the electric push rod 91 is fixedly connected to the cutter 92, and the base 93 is installed on the left side of the inner wall of the dryer 8.

[0047] Furthermore, a heating plate 19 is installed on the right side of the inner wall of the dryer 8, and a storage shell 20 is provided on the inner wall of the dryer 8. The surface of the storage shell 20 is in contact with the inner wall of the dryer 8. A movable door is movably connected to the front of the dryer 8 through a hinge. The movable door can be opened to facilitate the removal of the storage shell 20.

[0048] From the above, it can be seen that the production efficiency is medium and the quality of the produced graphene compound fertilizer is high.

[0049] Implementation List 3

[0050] See also Figure 1-3 , a graphene agricultural compound fertilizer production process, including the following production process flow:

[0051] S1. Put the large-particle raw material powders of each component of the compound fertilizer into the pulverizer 2, and pulverize them in the pulverizer 2. The particle size after pulverization is about 2 mm, and the production efficiency is about 1000 kg / h. The rotation speed of the pulverizing blade 100 in the pulverizer 2 is 5000 rpm. The pulverized raw materials enter the cyclone collector 3, and then fall into the collection shell 101 through the cyclone collector 3 for collection;

[0052] S2, placing the collected raw materials in a mixer 9, mixing them through a stirring structure, spraying water mist from an atomizing nozzle 13, so that the raw materials can be bonded together under the action of an external force, and then continuously mixing and stirring;

[0053] S3, discharge the material after stirring in the above S2 into the interior of the granulator 7, extrude and granulate to obtain the graphene compound fertilizer, and at the same time, the graphene compound fertilizer is granulated by the granulating component 102, and after granulation, it is dried by the dryer 8, and the drying temperature is 100°C. The granulator 7 can reach an output of 500kg / h according to demand.

[0054] The components of the compound fertilizer are calculated by mass percentage and include the following components: 60% nitrogen, 40% potassium, 30% phosphorus, 5% modifier and 15% carbon.

[0055] Furthermore, the nitrogen-containing raw materials include one or more of ammonium carbonate, urea, ammonium sulfate, and ammonium chloride; the potassium-containing raw materials include one or more of potassium chloride, potassium sulfate, potassium humate, amino acid potassium, inorganic potassium fertilizer or organic potassium fertilizer; the phosphorus-containing raw materials include one or more of ammonium phosphate, diammonium phosphate, heavy superphosphate, and calcium magnesium phosphate; and the modifier is one or more of polyvinyl alcohol, sodium lignin sulfonate, polyvinyl pyrrolidone (PVP), polyethylene glycol, and a silane coupling agent.

[0056] Furthermore, graphene is prepared by one or more of the following methods: chemical vapor deposition, mechanical exfoliation, oxidation-reduction method, electrochemical method, etc.

[0057] A graphene agricultural compound fertilizer production device comprises a bottom plate 1 and a cyclone collector 3, wherein a pulverizer 2 is arranged above the bottom plate 1, a feeding cover is arranged on the top of the pulverizer 2, the bottom of the pulverizer 2 is connected to the cyclone collector 3 through a pipeline, a valve is arranged on the pipeline, a pulse dust collector 4 is arranged on the right side of the cyclone collector 3, the cyclone collector 3 is installed on the top of the bottom plate 1 through a bracket 15, the pulse dust collector 4 is installed on the bracket 15, an air outlet pipe at the bottom of a fan 5 is connected to the pulse dust collector 4, a fan 5 is installed on the left side of the pulse dust collector 4, a connector 6 is connected to the left side of the fan 5 through a pipeline, the top and bottom of the connector 6 are respectively connected to the pulverizing device 2 and the cyclone collector 3 through a fixed pipe 103, a pulverizing blade 100 is arranged inside the pulverizer 2, a collecting shell 101 is arranged below the cyclone collector 3, and the bottom of the collecting shell 101 is in contact with the top of the bottom plate 1.

[0058] The invention also includes a granulator 7 and a dryer 8. The granulator 7 is installed on the top of the bottom plate 1 and is located on the right side of the pulse dust collector 4. A stirrer 9 is arranged on the top of the granulator 7. A feeding cover is arranged on the top of the stirrer 9. The bottom end of the stirrer 9 is connected to the granulator 7 through a discharge pipe 16. A valve is arranged on the discharge pipe 16. The bottom of the stirrer 9 is fixedly connected to the top of the granulator 7 through two supporting blocks. A stirring motor 17 is installed on the top of the stirrer 9. The bottom end of the output shaft of the stirring motor 17 passes through the stirrer 9 and extends to the inside thereof. A stirring rod 18 is installed on the bottom end of the output shaft of the stirring motor 17. The right side of the mixer 9 is fixedly connected to the top of the granulator 7 through a mounting plate 10, a water tank 11 is installed on the right side of the mounting plate 10, a water pump 12 is installed on the top of the mounting plate 10, the water pump 12 is connected to the water tank 11 through a suction pipe, a water filling cover is provided on the top of the water tank 11, an atomizing nozzle 13 is installed on the top of the inner wall of the mixer 9, the water pump 12 is connected to the atomizing nozzle 13 through a pipeline, the dryer 8 is installed on the top of the base plate 1 and is located on the right side of the granulator 7, the right end of the discharge pipe of the granulator 7 passes through the dryer 8 and extends into the interior thereof, and a pelletizing assembly 102 is provided on the left side of the inner wall of the dryer 8.

[0059] Furthermore, the pelletizing assembly 102 includes an electric push rod 91, a cutter 92 and a base 93. The electric push rod 91 is fixedly connected to the left side of the inner wall of the dryer 8 through a stabilizing block, the bottom end of the electric push rod 91 is fixedly connected to the cutter 92, and the base 93 is installed on the left side of the inner wall of the dryer 8.

[0060] Furthermore, a heating plate 19 is installed on the right side of the inner wall of the dryer 8, and a storage shell 20 is provided on the inner wall of the dryer 8. The surface of the storage shell 20 is in contact with the inner wall of the dryer 8. A movable door is movably connected to the front of the dryer 8 through a hinge. The movable door can be opened to facilitate the removal of the storage shell 20.

[0061] From the above, it can be seen that the production efficiency is high, but the quality of the produced graphene compound fertilizer is poor.

[0062] It can be seen from the above three embodiments that embodiment 2 is the optimal solution. The graphene compound fertilizer prepared by the present invention has a simple process, is easy to operate, has low cost, high economic benefit, and is suitable for large-scale industrial production. The graphene compound fertilizer can provide various nutrients required for crop production. At the same time, graphene also has antibacterial and heavy metal adsorption effects. The antibacterial effect of graphene can reduce the diseases caused by pathogens during the growth of crops, and after graphene adsorbs heavy metals, it can also reduce heavy metals in the soil and reduce the absorption of crops, thereby improving the quality of crops.

[0063] When in use, open the feeding cover on the pulverizer 2, put the raw material into the pulverizer 2, start the pulverizing motor 14, and the pulverizing motor 14 drives the pulverizing blade 100 to rotate, thereby pulverizing the raw material, open the valve on the pipeline of the pulverizer 2, so that the raw material is discharged into the cyclone collector 3, and at the same time, turn on the pulse dust collector 4 and the fan 5. The cyclone collector 3 and the pulse dust collector 4 are existing public technologies and will not be elaborated on in detail here. The particulate matter entering the cyclone collector 3 is thrown toward the wall of the device under the action of centrifugal force, and moves downward along the wall of the device, and finally reaches the bottom of the cyclone collector 3 and is collected by the collecting shell 101, while the gas is discharged into the interior of the pulse dust collector 4 through the fixed pipe 103 at the bottom and the exhaust pipe on the fan 5. At the same time, the dust gas in the pulverizer 2 is discharged into the interior of the pulse dust collector 4 through the fixed pipe 103 at the top and the exhaust pipe on the fan 5, thereby processing and collecting the dust in the gas to avoid air pollution.

[0064] Open the feeding cover on the mixer 9, put the raw materials collected in the collecting shell 101 into the mixer 9, turn on the water pump 12, the water pump 12 sprays the water in the water tank 11 through the atomizing nozzle 13 through the water suction pipe, so as to humidify the raw materials, start the stirring motor 17, and the stirring motor 17 drives the stirring rod 18 to rotate through the output shaft, so as to mix and stir the raw materials, and open the valve on the discharge pipe 16 after the stirring is completed;

[0065] After stirring, the raw materials are discharged into the interior of the granulator 7. The granulator 7 extrude the raw materials through the discharge pipe on the right side to granulate. The electric push rod 91 is started, and the electric push rod 91 drives the cutter 92 to move up and down repeatedly. Through the cooperation of the base 93 and the cutter 92, the extruded raw materials are pelletized and fall into the storage shell 20. At the same time, the heating plate 19 is turned on to heat and dry the particles.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A process for producing graphene agricultural compound fertilizer, characterized in that: The production process includes the following: S1, putting large-particle raw material powders of each component of the compound fertilizer into a pulverizer (2), pulverizing them in the pulverizer (2), the particle size after pulverization is about 0.1-2 mm, the production efficiency is about 100-1000 kg / h, the rotation speed of the pulverizing blade (100) in the pulverizer (2) is 4000-5000 rpm, the pulverized raw materials enter into a cyclone collector (3), and then fall into a collection shell (101) through the cyclone collector (3) for collection; S2, placing the collected raw materials in a mixer (9), mixing them through a stirring structure, spraying water mist from an atomizing nozzle 13 so that the raw materials can be bonded together under the action of an external force, and then continuously mixing and stirring; S3, discharge the material after stirring in the above S2 into the interior of the granulator (7), extrude and granulate to obtain the graphene compound fertilizer, and at the same time, the graphene compound fertilizer is granulated by the granulating component (102). After the granulation is completed, it is dried by the dryer (8), and the drying temperature is 50-100° C. The granulator (7) can achieve an output of 100-500 kg / h according to demand.

2. A process for producing graphene agricultural compound fertilizer according to claim 1, characterized in that: The components of the compound fertilizer include the following components by mass percentage: 40-60% nitrogen, 5%-40% potassium, 10%-30% phosphorus, 0.1%-5% modifier, and 0.1%-15% carbon.

3. A process for producing graphene agricultural compound fertilizer according to claim 2, characterized in that: Nitrogen 40%, potassium 5%, phosphorus 10%, modifier 0.1%, carbon 0.1%.

4. A process for producing graphene agricultural compound fertilizer according to claim 2, characterized in that: Nitrogen 50%, potassium 25%, phosphorus 20%, modifier 3%, carbon 8%.

5. A process for producing graphene agricultural compound fertilizer according to claim 2, characterized in that: Nitrogen 60%, potassium 40%, phosphorus 30%, modifier 5%, carbon 15%.

6. A graphene agricultural compound fertilizer production equipment, characterized in that: The invention comprises a bottom plate (1) and a cyclone collector (3), wherein a crusher (2) is arranged above the bottom plate (1), the bottom of the crusher (2) is connected to the cyclone collector (3) via a pipeline, a pulse dust collector (4) is arranged on the right side of the cyclone collector (3), a fan (5) is installed on the left side of the pulse dust collector (4), the left side of the fan (5) is connected to a connector (6) via a pipeline, the top and bottom of the connector (6) are respectively connected to the crushing device (2) and the cyclone collector (3) via a fixed pipe (103), a crushing blade (100) is arranged inside the crusher (2), and a collection shell (101) is arranged below the cyclone collector (3).

7. The graphene agricultural compound fertilizer production equipment according to claim 6, characterized in that: It also includes a granulator (7) and a dryer (8), wherein the granulator (7) is installed on the top of the bottom plate (1) and is located on the right side of the pulse dust collector (4), a mixer (9) is arranged on the top of the granulator (7), the right side of the mixer (9) is fixedly connected to the top of the granulator (7) through a mounting plate (10), a water tank (11) is installed on the right side of the mounting plate (10), a water pump (12) is installed on the top of the mounting plate (10), an atomizing nozzle (13) is installed on the top of the inner wall of the mixer (9), and the water pump (12) is connected to the atomizing nozzle (13) through a pipeline.

8. The graphene agricultural compound fertilizer production equipment according to claim 7, characterized in that: The dryer (8) is installed on the top of the base plate (1) and is located on the right side of the granulator (7). The right end of the discharge pipe of the granulator (7) passes through the dryer (8) and extends into the interior thereof. A pelletizing assembly (102) is provided on the left side of the inner wall of the dryer (8).

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