CN110156542A - Compound fertilizer granulating processing unit (plant) and granulation processing method - Google Patents
Compound fertilizer granulating processing unit (plant) and granulation processing method Download PDFInfo
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- CN110156542A CN110156542A CN201910362302.6A CN201910362302A CN110156542A CN 110156542 A CN110156542 A CN 110156542A CN 201910362302 A CN201910362302 A CN 201910362302A CN 110156542 A CN110156542 A CN 110156542A
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- urea
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- dissolving tank
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
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Abstract
The present invention relates to compound fertilizer fields, more particularly to a kind of compound fertilizer granulating processing unit (plant) and be granulated processing method, including urea dissolving tank, mixed dissolution slot, rotary drum granulator, the first blender is provided at the top of the urea dissolving tank, urea feed inlet is equipped at the upper side of urea dissolving tank, the urea dissolving tank other side is equipped with the first overflow port, first overflow port is connected in mixed dissolution slot by pipeline, mixed dissolution groove top portion is provided with the second blender, the side of mixed dissolution slot is equipped with powder feed inlet, mixed dissolution slot side is additionally provided with the second overflow port, the rotary drum granulator is equipped with spray head, second overflow port is connected on spray head by pipeline, the discharge end of the rotary drum granulator is connected with rotary dryer in turn, rotary drum cooler, screening machine, coating machine；This processing unit (plant) is simple, high-efficient, at low cost, and compound fertilizer granule produced is uniform in size, and particle is smooth.
Description
Technical field
The present invention relates to compound fertilizer field more particularly to a kind of compound fertilizer granulating processing unit (plant) and it is granulated processing method.
Background technique
With the development that people live, agricultural is gradually grown, and in order to improve the growing environment and harvest benefit of crops, is needed
Will be according to different seasons, weather, soil environment to farmland Li Sa compound fertilizer, compound fertilizer, which refers to, contains two or more
The chemical fertilizer of nutrient, compound fertilizer have many advantages, such as that nutrient content is high, accessory ingredient is few and physical behavior is good, for balance fertilizing,
Utilization rate of fertilizer is improved, the stable high yield of crop is promoted to have highly important effect.The appearance of usual compound fertilizer is many
Little particle, however traditional production technology is too simple, only simple crushing, mixing, granulation, coating, packaging, in turn result in
Granular size produced is different, and graininess is not full, there is incompleteness or appearance is relatively rough, granular size quality is not
Equilibrium, broadcast application is uneven during resulting in worker's fertilising, meanwhile, the biggish fertilizer crop absorption of particle is simultaneously bad, however
Some factories change the smooth in appearance degree of particle by whitewashing to particle, since slurry is special sticky slurry, if using common
Pump whitewash, it is easy to cause line clogging, thereby reduce the service life of production equipment.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, avoid that fertiliser granulates produced are different, appearance is coarse,
Or whitewashing has some setbacks, line clogging, and provide a kind of compound fertilizer granulating processing unit (plant) and be granulated processing method, knot of the present invention
Structure is simple, and processing method is efficient, at low cost, and the compound fertilizer granule processed is uniform in size, and particle is smooth.
The purpose of the present invention is what is be achieved by the following measures: a kind of compound fertilizer granulating processing unit (plant), including urea are molten
Slot, mixed dissolution slot, rotary drum granulator are solved, the first blender, urea dissolving tank top are provided at the top of the urea dissolving tank
Side is equipped with urea feed inlet, and the urea dissolving tank other side is equipped with the first overflow port, and first overflow port is connected by pipeline
To mixed dissolution slot, mixed dissolution groove top portion is provided with the second blender, the side of mixed dissolution slot be equipped with powder into
Material mouth, mixed dissolution slot side are additionally provided with the second overflow port, and the rotary drum granulator is equipped with spray head, second overflow port
It is connected on spray head by pipeline, it is cooling that the discharge end of the rotary drum granulator is connected with rotary dryer, rotary drum in turn
Machine, screening machine, coating machine.
Preferably, the powder feed inlet is set to the side-lower of mixed dissolution slot, is connected with spiral transferring at powder feed inlet
Send machine.
Preferably, the urea feed inlet is set to the upper side of urea dissolving tank, is connected with bucket type at urea feed inlet and mentions
The machine of liter.
The granulation processing method of above-mentioned compound fertilizer granulating processing unit (plant), comprising the following steps:
A, it stocks up: preparing urea, powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate, the compound fertilizer granules containing N, P, K
Semi-finished product, for use；Compound fertilizer granules semi-finished product are then to utilize compound fertilizer made of traditional a variety of nutrient raw material mixing granulations
Grain semi-finished product；
B, it mixes: the urea that a step is got ready being added by bucket elevator to urea dissolving tank, steam boiler is passed through
Heat is provided into urea dissolving tank, temperature is 120-135 DEG C, it is liquid by urea melting, opens simultaneously the first blender, when
When urine level is increased to the first overflow port, urine is flowed into mixed dissolution slot, by screw conveyor to mixed dissolution slot
Interior powdery potassium chloride, the powdery ammonium chloride, powder ammonium phosphate that a step is added and gets ready, opens the second blender and stirs evenly, must mix
Slurry, powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate gross mass account for the 20%-40% of mixing slurry quality；Between powder raw material
How much, proportion can be oriented, and can also optionally add other additives according to the stability of measured soil；
C, overflow is granulated: the compound fertilizer granules semi-finished product for first getting a step ready are sent into rotary drum granulator, and b step is mixed
Slurry is closed out of, the second overflow port flows into rotary drum granulator spray head, spray head is whitewashed into the lathe of rotary drum granulator, is made
It obtains compound fertilizer granules semi-finished product package and is mixed slurry package, obtain particle A, mixing slurry accounts for the 5%-8% of particle A gross mass；
D, it dries: the particle A of step c is sent into rotary dryer, drying temperature is 60-120 DEG C, out dryer
The water content of particle is 1.5%；
E, cooling: sending particle that Step d is dried into rotary drum cooler and cool down, particle temperature less than 40 DEG C,
Grain hardness is greater than 18N；
F, it sieves: the first sieve for being 5.2-5.6mm by aperture in step e pellet through sieves extension set after cooling, through the
For the particle of one sieve after the second sieve that aperture is 3.0-3.3mm, the particle being retained on the second sieve is conforming particle；
G, coating, filling: the conforming particle in f step being sent into coating machine and carries out coating, be sent into after coating feed bin into
Luggage bag, the finished product as processed.
The invention has the benefit that star can be wrapped up plasticity to semi-finished granules by preparing mixing slurry by the present invention,
On the one hand make the smooth rounding of particle appearance, on the other hand make storeroom structure more firm, pellet hardness is higher, and nutrient is more equal
It is even, selling point and cost are improved, there is very strong market competition advantage；Particle surface wraps up high temperature mixing slurry, improves
Particle temperature makes particle be easier to dry, and reduces drying energy consumption and pellet moisture, and the drying of Step d is to after package slurry
Particle carries out drying polishing treatment, using the cooling of step e, the screening qualification rate again of f step after drying, is finally packaged as
Finished product.The mixing slurry of b step manufacture is to avoid the situation using pump blocking pipeline by way of overflow, and overflow is more stable,
It is to be added by screw conveyor to the bottom of mixed dissolution slot simultaneously when granular material is added into mixed dissolution slot, this
When powder-material directly by liquid urine cover, environmental protection, not will cause fugitive dust.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that processing unit (plant) is granulated in the present invention；
In figure: 1- urea dissolving tank, 2- mixed dissolution slot, 3- rotary drum granulator, the first blender of 4-, the charging of 5- urea
Mouthful, the first overflow port of 6-, 7- bucket elevator, 8- powder feed inlet, the second overflow port of 9-, 10- spray head, 11- helical feed
Machine, the second blender of 12-, 13- rotary dryer, 14- rotary drum cooler, 15- screening machine, 16- coating machine.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with the present embodiment, it is clear that described
Embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field
Those of ordinary skill's every other embodiment obtained without making creative work belongs to this present invention guarantor
The range of shield.
Embodiment 1: as shown in Figure 1, a kind of compound fertilizer granulating processing unit (plant), including urea dissolving tank 1, mixed dissolution slot 2,
Rotary drum granulator 3, urea dissolving tank top are provided with the first blender 4, are equipped with urea feed inlet at the upper side of urea dissolving tank
5, the urea dissolving tank other side is equipped with the first overflow port 6, and the first overflow port is connected in mixed dissolution slot 2 by pipeline, mixes
The second blender 12 is provided at the top of dissolving tank, the side of mixed dissolution slot is equipped with powder feed inlet 8, and mixed dissolution slot side is also
Equipped with the second overflow port 9, rotary drum granulator is equipped with spray head 10, and the second overflow port is connected on spray head by pipeline.Powder
Expect that feed inlet is set to the side-lower of mixed dissolution slot, is connected with screw conveyor 11 at powder feed inlet.Urea feed inlet is set to
The upper side of urea dissolving tank is connected with bucket elevator 7 at urea feed inlet.The discharge end of rotary drum granulator 3 is sequentially connected
There are rotary dryer 13, rotary drum cooler 14, screening machine 15, coating machine 16.
The granulation processing method of above-mentioned compound fertilizer granulating processing unit (plant), comprising the following steps:
A, it stocks up: preparing urea, powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate, the compound fertilizer granules containing N, P, K
Semi-finished product, for use；
B, mix: the urea that a step is got ready is added by bucket elevator 7 to urea dissolving tank 1, and steam copper is passed through
Furnace provides heat into urea dissolving tank 1, and temperature is 120 DEG C, is liquid by urea melting, opens simultaneously the first blender 4, when
When urine level is increased to the first overflow port 6, urine is flowed into mixed dissolution slot 2, molten to mixing by screw conveyor 11
Powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate that a step is got ready are added in solution slot 2, opens the second blender 12 and stirs
It is even, mixing slurry is obtained, powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate gross mass account for the 20% of mixing slurry quality；Powder raw material it
Between number, proportion can be oriented according to the stability of measured soil, and can also optionally add other additions
Agent；
C, overflow is granulated: the compound fertilizer granules semi-finished product for first getting a step ready are sent into rotary drum granulator 3, and b step is mixed
Slurry is closed out of, the second overflow port 9 flows into rotary drum granulator spray head 10, spray head is whitewashed into the lathe of rotary drum granulator,
So that compound fertilizer granules semi-finished product package is mixed slurry package, particle A is obtained, mixing slurry accounts for the 5% of particle A gross mass；
D, it dries: the particle A of step c is sent into rotary dryer 13, drying temperature is 60 DEG C, out of dryer
The water content of grain is 1.5%；
E, cooling: sending particle that Step d is dried into rotary drum cooler 14 and cool down, particle temperature less than 40 DEG C,
Pellet hardness is greater than 18N；
F, it sieves: the first sieve for being 5.2mm by 15 apertures in step e pellet through sieves extension set after cooling, through first
For the particle of sieve after the second sieve that aperture is 3.3mm, the particle being retained on the second sieve is conforming particle；
G, coating, filling: the conforming particle in f step is sent into coating machine 16 and carries out coating, is sent into feed bin after coating
It is packed, the finished product as processed.
Embodiment 2: as shown in Figure 1, a kind of compound fertilizer granulating processing unit (plant), including urea dissolving tank 1, mixed dissolution slot 2,
Rotary drum granulator 3, urea dissolving tank top are provided with the first blender 4, are equipped with urea feed inlet at the upper side of urea dissolving tank
5, the urea dissolving tank other side is equipped with the first overflow port 6, and the first overflow port is connected in mixed dissolution slot 2 by pipeline, mixes
The second blender 12 is provided at the top of dissolving tank, the side of mixed dissolution slot is equipped with powder feed inlet 8, and mixed dissolution slot side is also
Equipped with the second overflow port 9, rotary drum granulator is equipped with spray head 10, and the second overflow port 9 is connected on spray head by pipeline.Powder
Expect that feed inlet is set to the side-lower of mixed dissolution slot, is connected with screw conveyor 11 at powder feed inlet.Urea feed inlet is set to
The upper side of urea dissolving tank is connected with bucket elevator 7 at urea feed inlet.The discharge end of rotary drum granulator is connected in turn
Rotary dryer 13, rotary drum cooler 14, screening machine 15, coating machine 16.
The granulation processing method of above-mentioned compound fertilizer granulating processing unit (plant), comprising the following steps:
A, it stocks up: preparing urea, powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate, the compound fertilizer granules containing N, P, K
Semi-finished product, for use；
B, mix: the urea that a step is got ready is added by bucket elevator 7 to urea dissolving tank 1, and steam copper is passed through
Furnace provides heat into urea dissolving tank, and temperature is 135 DEG C, is liquid by urea melting, opens simultaneously the first blender 4, when
When urine level is increased to the first overflow port 6, urine is flowed into mixed dissolution slot 2, molten to mixing by screw conveyor 11
Powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate that a step is got ready are added in solution slot 2, opens the second blender 12 and stirs
It is even, mixing slurry is obtained, powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate gross mass account for the 40% of mixing slurry quality；Powder raw material it
Between number, proportion can be oriented according to the stability of measured soil, and can also optionally add other additions
Agent；
C, overflow is granulated: the compound fertilizer granules semi-finished product for first getting a step ready are sent into rotary drum granulator 3, and b step is mixed
Slurry is closed out of, the second overflow port 9 flows into rotary drum granulator 3 spray head 10, spray head is sprayed into the lathe of rotary drum granulator
Slurry obtains particle A, mixing slurry accounts for the 8% of particle A gross mass so that compound fertilizer granules semi-finished product package is mixed slurry package；
D, it dries: the particle A of step c is sent into rotary dryer 13, drying temperature is 120 DEG C, out dryer
The water content of particle is 1.5%；
E, cooling: sending particle that Step d is dried into rotary drum cooler 14 and cool down, particle temperature less than 40 DEG C,
Pellet hardness is greater than 18N；
F, it sieves: the first sieve for being 5.6mm by aperture in step e pellet through sieves extension set 15 after cooling, through first
For the particle of sieve after the second sieve that aperture is 3.3mm, the particle being retained on the second sieve is conforming particle；
G, coating, filling: the conforming particle in f step is sent into coating machine 16 and carries out coating, is sent into feed bin after coating
It is packed, the finished product as processed.
Embodiment 3: as shown in Figure 1, a kind of compound fertilizer granulating processing unit (plant), including urea dissolving tank 1, mixed dissolution slot 2,
Rotary drum granulator 3, urea dissolving tank top are provided with the first blender 4, are equipped with urea feed inlet at the upper side of urea dissolving tank
5, the urea dissolving tank other side is equipped with the first overflow port 6, and the first overflow port 6 is connected in mixed dissolution slot 2 by pipeline, mixes
The second blender is provided at the top of dissolving tank, the side of mixed dissolution slot is equipped with powder feed inlet 8, and mixed dissolution slot side is also set
There is the second overflow port 9, rotary drum granulator 3 is equipped with spray head 10, and the second overflow port 9 is connected on spray head 10 by pipeline.
Powder feed inlet 8 is set to the side-lower of mixed dissolution slot, is connected with screw conveyor 11 at powder feed inlet.Urea feed inlet 5
Set on the upper side of urea dissolving tank, bucket elevator 7 is connected at urea feed inlet.The discharge end of rotary drum granulator 3 is successively
It is connected with rotary dryer 13, rotary drum cooler 14, screening machine 15, coating machine 16.
The granulation processing method of above-mentioned compound fertilizer granulating processing unit (plant), comprising the following steps:
A, it stocks up: preparing urea, powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate, the compound fertilizer granules containing N, P, K
Semi-finished product, for use；
B, mix: the urea that a step is got ready is added by bucket elevator 7 to urea dissolving tank 1, and steam copper is passed through
Furnace provides heat into urea dissolving tank 1, and temperature is 130 DEG C, is liquid by urea melting, opens simultaneously the first blender 4, when
When urine level is increased to the first overflow port 6, urine is flowed into mixed dissolution slot 2, molten to mixing by screw conveyor 11
Powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate that a step is got ready are added in solution slot, opens the second blender 12 and stirs evenly,
Mixing slurry is obtained, powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate gross mass account for the 30% of mixing slurry quality；Between powder raw material
Number, proportion can be oriented according to the stability of measured soil, and can also optionally add other additives；
C, overflow is granulated: the compound fertilizer granules semi-finished product for first getting a step ready are sent into rotary drum granulator 3, and b step is mixed
Slurry is closed out of, the second overflow port 9 flows into rotary drum granulator 3 spray head 10, spray head 10 is into the lathe of rotary drum granulator 3
Whitewashing obtains particle A, mixing slurry accounts for the 7% of particle A gross mass so that compound fertilizer granules semi-finished product package is mixed slurry package；
D, it dries: the particle A of step c is sent into rotary dryer 13, drying temperature is 60-120 DEG C, out dryer
Particle water content be 1.5%；
E, cooling: sending particle that Step d is dried into rotary drum cooler 14 and cool down, particle temperature less than 40 DEG C,
Pellet hardness is greater than 18N；
F, it sieves: the first sieve for being 5.4mm by aperture in step e pellet through sieves extension set 15 after cooling, through first
For the particle of sieve after the second sieve that aperture is 3.2mm, the particle being retained on the second sieve is conforming particle；
G, coating, filling: the conforming particle in f step is sent into coating machine 16 and carries out coating, is sent into feed bin after coating
It is packed, the finished product as processed.
Claims (4)
1. a kind of compound fertilizer granulating processing unit (plant), it is characterised in that: including urea dissolving tank, mixed dissolution slot, rotary drum granulator,
It is provided with the first blender at the top of the urea dissolving tank, urea feed inlet, urea dissolution are equipped at the upper side of urea dissolving tank
The slot other side is equipped with the first overflow port, and first overflow port is connected in mixed dissolution slot by pipeline, the mixed dissolution
Groove top portion is provided with the second blender, and the side of mixed dissolution slot is equipped with powder feed inlet, and mixed dissolution slot side is additionally provided with the
Two overflow ports, the rotary drum granulator are equipped with spray head, and second overflow port is connected on spray head by pipeline, described
The discharge end of rotary drum granulator is connected with rotary dryer, rotary drum cooler, screening machine, coating machine in turn.
2. compound fertilizer granulating processing unit (plant) according to claim 1, it is characterised in that: the powder feed inlet is set to mixing
The side-lower of dissolving tank is connected with screw conveyor at powder feed inlet.
3. compound fertilizer granulating processing unit (plant) according to claim 1, it is characterised in that: the urea feed inlet is set to urea
The upper side of dissolving tank is connected with bucket elevator at urea feed inlet.
4. a kind of granulation processing method of compound fertilizer granulating processing unit (plant) as described in claim 1, it is characterised in that: including with
Lower step:
A, stock up: preparing urea, powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate, the compound fertilizer granules containing N, P, K half at
Product, for use；
B, it mixes: the urea that a step is got ready is added by bucket elevator to urea dissolving tank, by steam boiler to urine
Heat is provided in plain dissolving tank, temperature is 120-135 DEG C, is liquid by urea melting, opens simultaneously the first blender, work as urine
When liquid level is increased to the first overflow port, urine is flowed into mixed dissolution slot, is added by screw conveyor into mixed dissolution slot
Enter powdery potassium chloride, the powdery ammonium chloride, powder ammonium phosphate that a step is got ready, open the second blender and stir evenly, obtain mixing slurry,
Powdery potassium chloride, powdery ammonium chloride, powder ammonium phosphate gross mass account for the 20%-40% of mixing slurry quality；
C, overflow is granulated: the compound fertilizer granules semi-finished product for first getting a step ready are sent into rotary drum granulator, the mixing slurry of b step
Out of, the second overflow port flows into rotary drum granulator spray head, spray head is whitewashed into the lathe of rotary drum granulator, so that multiple
Pellet product package in Hefei is mixed slurry package, obtains particle A, mixing slurry accounts for the 5%-8% of particle A gross mass；
D, it dries: the particle A of step c is sent into rotary dryer, drying temperature is 60-120 DEG C, out the particle of dryer
Water content be 1.5%；
E, cooling: the particle that Step d is dried is sent into rotary drum cooler and is cooled down, for particle temperature less than 40 DEG C, particle is hard
Degree is greater than 18N；
F, it sieves: the first sieve for being 5.2-5.6mm by aperture in step e pellet through sieves extension set after cooling, through the first sieve
For the particle of net after the second sieve that aperture is 3.0-3.3mm, the particle being retained on the second sieve is conforming particle；
G, coating, filling: the conforming particle in f step being sent into coating machine and carries out coating, and feed bin is sent into after coating and is filled
Bag, the finished product as processed.
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Cited By (2)
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| CN112939670A (en) * | 2021-03-25 | 2021-06-11 | 山东奥德鲁生物科技有限公司 | Hydrophobic slow-release organic-inorganic compound fertilizer preparation device and preparation method |
| CN114984851A (en) * | 2022-06-27 | 2022-09-02 | 河南豫能化肥有限公司 | Method and device for manufacturing granular fertilizer by secondary guniting |
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| CN112939670A (en) * | 2021-03-25 | 2021-06-11 | 山东奥德鲁生物科技有限公司 | Hydrophobic slow-release organic-inorganic compound fertilizer preparation device and preparation method |
| CN114984851A (en) * | 2022-06-27 | 2022-09-02 | 河南豫能化肥有限公司 | Method and device for manufacturing granular fertilizer by secondary guniting |
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Application publication date: 20190823 |