CN108264396A - A kind of composite heat transfer system and its production technology - Google Patents
A kind of composite heat transfer system and its production technology Download PDFInfo
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- CN108264396A CN108264396A CN201710968074.8A CN201710968074A CN108264396A CN 108264396 A CN108264396 A CN 108264396A CN 201710968074 A CN201710968074 A CN 201710968074A CN 108264396 A CN108264396 A CN 108264396A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/12—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating drums
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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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/16—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
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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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- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of composite heat transfer system and its production technology, which includes：Feed proportioning system (1), comminutor (2), screening machine (3), cooler (4), packing machine (5), fume recovery system (6) and urea urine output pipe (7), comminutor of the production system in granulation process uses rotary drum fluid-bed technology, because feed proportioning system needs be only arranged at ground, the power of feedstock transportation is saved compared with high tower fused melt granulated, reduce molten urea solution biuret risk of exceeding criterion caused by transmission range long residence time increase, it is conveniently operated, inspection and maintenance, reduce one-time investment, and it is set in the composite heat transfer system of the present invention by the setting of feed proportioning system and the connection of urea urine output pipe, granular urea and composite fertilizer's flexible manufacturing can be achieved, greatly improve the utilization rate of device.
Description
Technical field
The present invention discloses the technical field for being related to composite heat transfer more particularly to a kind of composite heat transfer system and its production
Technique.
Background technology
At present, there are mainly four types of the production technologies of domestic production composite fertilizer, respectively：Feed liquid method, solid granulating method, part
Feed liquid method and melt high-tower granulation method.
Using phosphoric acid, ammonia as raw material, feed liquid will be neutralized in ammoniation and granulation device using averager, tubular reactor for feed liquid method
Be coated granulation, add part nitrogen and potassium and other substances in process of production, then through drying, screening, cooling and
Obtain NPK complex fertilizer products, this be domestic and international major Fertilizer Company and factory's large-scale production frequently with production method.
Solid granulating method, with monomer base fertilizer such as：Urea, ammonium nitrate, ammonium chloride, sulphur ammonium, phosphorus ammonium (monoammonium phosphate, phosphoric acid
Diammonium, coarse whiting, general calcium), potassium chloride (potassium sulfate) etc. be raw material, after being crushed to certain fineness, material rotary drum granulator (or
Garden disk comminutor) rolling bed in by being humidified, heating carry out agglomeration granulation, in granulation process, it is conditional can also be
Rotary drum granulator adds in a small amount of phosphoric acid and ammonia, to improve granulating condition.It is granulated material and obtains NPK through drying, screening, cooling
Compound fertilizer product, this is also one of international widely used method, the Southeast Asia such as the U.S. and India of early stage, Japan, Thailand
Country is produced using this method.
Urine is utilized using the slurry-spraying pelletizing technique of urine or ammonium nitrate solution-i.e. part feed liquid method, technology in half feed liquid method
Element and ammonium nitrate can form the characteristic of highly concentrated solution at high temperature, and granulation machine tool layer is injected directly into urine or ammonium nitrate concentrated solution
In, the liquid phase provided using urine or ammonium nitrate solution is coated granulation together with other total amount of binder fertilizer and returning charge.It is granulated
Material obtains (urine base or nitro) compound fertilizer product through drying, screening, cooling.
High-tower granulation is that molten urea solution is pumped into melting in mixer, then by the powdered acid after heating after metering
It adds in heater and heats after the meterings such as monoammonium, potassium chloride and additive (auxiliary material), the material after preheating is sent into mixer with melting
Melt urine hybrid reaction, be sufficiently mixed into solubility greatly and there is the combine additively material liquid of certain fluidity.Then lean on itself
Gravity is flowed into the rotary nozzle for being located at and making tower top sprays into drop again, and drop declines process and the cold sky risen at the top of high tower
The circulation of vital energy in the wrong direction crystallizes, cures, is cooled to finished particle to transmission of heat by contact in air.
Above-mentioned first three produces composite fertilizer's method as conventional method, long flow path, high energy consumption, though and melt high-tower granulation reduces
Production cost and energy consumption, being granulated tower height need to be up to 90 meter or more, and one-time investment is larger；And molten urea solution transmission range is big, causes
Biuret Content increases in product；And phosphate fertilizer, potash fertilizer all transport top of tower dispensing again, conveying power increases；Tower top dispensing
Not only operation, space for maintenance are small, and are unfavorable for inspection and pinpoint the problems in time.
Therefore, a kind of composite heat transfer system of alternative high-tower granulation how is researched and developed, to solve the above problems, becomes people
Urgent problem to be solved.
Invention content
In consideration of it, the present disclosure provides a kind of composite heat transfer system and its production technology, it is previous at least to solve
Using high-tower granulation carry out composite heat transfer when, existing one-time investment is larger, in product Biuret Content increase, operation,
Space for maintenance is small, is unfavorable for the problems such as inspection.
One aspect of the present invention provides a kind of composite heat transfer system, which includes：Feed proportioning system 1, comminutor
2nd, screening machine 3, cooler 4, packing machine 5, fume recovery system 6 and urea urine output pipe 7；
The feed proportioning system 1 includes：First disintegrator 11, the first bucket elevator 12, the first hopper 13, the first constant feeder
14th, the second pulverizer 15, the second bucket elevator 16, the second hopper 17, the second constant feeder 18, blender 19 and dosage bunker
10, the output terminal of the first disintegrator 11 is connect with the input terminal of first bucket elevator 12, first bucket elevator 12
Output terminal is connect with the input terminal of first hopper 13, the output terminal of first hopper 13 and first constant feeder
14 input terminals connect, and the output terminal of second pulverizer 15 is connect with the input terminal of second bucket elevator 16, and described second
The output terminal of bucket elevator 16 is connect with the input terminal of second hopper 17, the output terminal of second hopper 17 and described second
18 input terminal of constant feeder connects, and the blender 19 is set in the dosage bunker 10, and the first of the dosage bunker 10
Input terminal is connect with the first output terminal of the urea urine output pipe 7, the second input terminal of the dosage bunker 10 respectively with
The output terminal of first constant feeder 14 is connected with the output terminal of second constant feeder 18；
The input terminal of the comminutor 2 is urinated respectively with the output terminal of dosage bunker 10 in the feed proportioning system 1 and the urea
The second output terminal connection of liquid output pipe 7；
The input terminal of the screening machine 3 is connect with the output terminal of the comminutor 2；
The input terminal of the cooler 4 is connect with the output terminal of the screening machine 3；
The input terminal of the packing machine 5 is connect with the output terminal of the cooler 4；
6 input terminal of fume recovery system is connect with the flue dust output terminal of the comminutor 2.
It is preferred that first constant feeder 14 and second constant feeder 18 are screw fixed-weight feeder.
Further preferably, the comminutor 2 is fluidized bed rotating drum prilling machine.
Further preferably, the comminutor 2 includes：Rotary drum 21, fluid bed 22, feed liquid pipe 23, feed pump 24 and air blast
Machine 25；
The rotary drum 21 is internally provided with cavity 211, and the interior of the rotary drum 21 is provided with air cavity, the air cavity
Inner wall is arranged at intervals with venthole；
The fluid bed 22 is fixedly installed in the cavity 211 of the rotary drum 21, and the upper surface of the fluid bed 22 is
Inclined-plane；
The feed liquid pipe 23 is fixedly installed in the cavity 211 of the rotary drum 21, and is located at the top of the fluid bed 22,
Nozzle 231 is arranged at intervals on the feed liquid pipe 23；
The input terminal of the feed pump 24 is connect with the output terminal of dosage bunker 10 in the feed proportioning system 1, the feed pump
24 output terminal is connect with the input terminal of the feed liquid pipe 23；
The output terminal of the air blower 25 is connect with the air inlet of the 21 side wall air cavity of rotary drum.
Further preferably, the side wall of the nozzle 231 is provided with the spout 2311 being recessed inwardly, under the spout 2311
End face is plane, and upper surface is cambered surface.
Further preferably, the comminutor 2 further includes：Filter 26；
The filter 26 is series between the feed pump 24 and the feed liquid pipe 23, the input terminal of the filter 26
It is connect with the output terminal of the feed pump 24, the output terminal of the filter 26 is connect with the input terminal of the feed liquid pipe 23.
Further preferably, the fume recovery system 6 includes：Dedusting air-introduced machine 61, scrubbing tower 62 and the pump housing 63；
The input terminal of the dedusting air-introduced machine 61 is connect with the flue dust output terminal of the comminutor 2, the dedusting air-introduced machine
61 output terminal is connect with the gas input of the scrubbing tower 62；
The fluid output port of the scrubbing tower 62 is connect with the input terminal of the pump housing 63.
Another aspect of the present invention additionally provides a kind of compound fertilizer production technology, the production technology using it is above-mentioned any one
Production system, the production technology include the following steps：
By raw material urea, monoammonium phosphate and potassium chloride according to weight ratio 15~40:4~20:4~20 pass through feed proportioning system
1 carries out dispensing, and is added in dosage bunker 10 and account for first additive of the raw material weight than 5 ‰~2% and account for raw material weight ratio
2%~5% Second addition obtains feed liquid after stirring evenly；
The feed liquid is input to be granulated in comminutor 2 after, sieved by screening machine 3, obtain compound fertilizer granules, and will
The dusty gas generated in comminutor 2 is input to progress dust recycling in fume recovery system 6；
The compound fertilizer granules are transported to after being cooled down in cooler, are packed by packing machine 5, obtain finished product；
Wherein, first additive is ethers emulsified copolymer or poly- silicon class lotion；The Second addition is refined
Water.
The present invention also provides a kind of compound fertilizer production technology, the production technology is using any one above-mentioned production system
System, the production technology include the following steps：
By raw material urea and potassium chloride according to weight ratio 32~45:4~8 by feed proportioning system 1 carry out dispensing, and with
It is added in hopper 10 and accounts for third additive of the raw material weight than 4%~10% and account for the 4th of raw material weight than 2%~5%
Additive obtains feed liquid after stirring evenly；
The feed liquid is input to be granulated in comminutor 2 after, sieved by screening machine 3, obtain compound fertilizer granules, and will
The dusty gas generated in comminutor 2 is input to progress dust recycling in fume recovery system 6；
The compound fertilizer granules are transported to after being cooled down in cooler, are packed by packing machine 5, obtain finished product；
Wherein, the third additive is performance improving agent, and the 4th additive is Purified Water.
Composite heat transfer system provided by the invention, belongs to melt granulation techniques scope, the comminutor in granulation process
Using rotary drum fluid-bed technology, this is different from other conventional composite fertilizer production systems, and more high tower fused melt granulated also advantageous, because
Feed proportioning system needs be only arranged at ground, and the power of feedstock transportation is saved compared with high tower fused melt granulated, reduces molten urea solution
The biuret risk of exceeding criterion caused by transmission range long residence time increase is conveniently operated, inspection and maintenance, is reduced disposable
Investment, and pass through the setting of feed proportioning system and the connection of urea urine output pipe in the composite heat transfer system of the present invention
Setting greatly improves the utilization rate of device, it can be achieved that granular urea and composite fertilizer's flexible manufacturing.
Description of the drawings
Attached drawing herein is incorporated into specification and forms the part of this specification, shows the implementation for meeting the present invention
Example, and be used to explain the principle of the present invention together with specification.
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without creative efforts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural representation intention that the present invention discloses a kind of composite heat transfer system that embodiment provides；
Fig. 2 is the structure diagram that the present invention discloses comminutor in a kind of composite heat transfer system that embodiment provides；
Fig. 3 is the structure diagram that the present invention discloses nozzle in a kind of composite heat transfer system that embodiment provides.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects being described in detail in claims, of the invention.
It is a kind of composite heat transfer system that the present embodiment provides referring to Fig. 1, the production system is mainly by feed proportioning system
1st, comminutor 2, screening machine 3, cooler 4, packing machine 5, fume recovery system 6 and urea urine output pipe 7 form,
In, feed proportioning system 1 is mainly by first disintegrator 11, the first bucket elevator 12, the first hopper 13, the first constant feeder 14, second
Pulverizer 15, the second bucket elevator 16, the second hopper 17, the second constant feeder 18, blender 19 and dosage bunker 10 form,
In, the output terminal of first disintegrator 11 is connect with the input terminal of the first bucket elevator 12, the output terminal and first of the first bucket elevator 12
The input terminal connection of hopper 13, the output terminal of the first hopper 13 are connect with 14 input terminal of the first constant feeder, the second pulverizer
15 output terminal is connect with the input terminal of the second bucket elevator 16, the input terminal of the output terminal of the second bucket elevator 16 and the second hopper 17
Connection, the output terminal of the second hopper 17 are connect with 18 input terminal of the second constant feeder, the first input end and urine of dosage bunker 10
The first output terminal connection of plain urine output pipe 7, the second input terminal of dosage bunker 10 respectively with the first constant feeder 14
The output terminal of output terminal and the second constant feeder 18 connects；The input terminal of comminutor 2 respectively with dosage bunker 10 in feed proportioning system 1
Output terminal connected with the second output terminal of urea urine output pipe 7；The input terminal of screening machine 3 and the output terminal of comminutor 2
Connection；The input terminal of cooler 4 is connect with the output terminal of screening machine 3；The input terminal of packing machine 5 connects with the output terminal of cooler 4
It connects；6 input terminal of fume recovery system is connect with the flue dust output terminal of comminutor 2.
Wherein, the first constant feeder 14 and the second constant feeder 18 can select screw fixed-weight feeder, to realize
Accurate dosing in blending process.
Referring to Fig. 2, comminutor 2 is preferably fluidized bed rotating drum prilling machine, the comminutor 2 mainly by rotary drum 21, fluid bed 22,
Feed liquid pipe 23, feed pump 24 and air blower 25 form, wherein, rotary drum 21 is internally provided with cavity 211, in the side wall of rotary drum 21
Portion is provided with air cavity, and the inner wall of air cavity is arranged at intervals with venthole, and fluid bed 22 is fixedly installed in the cavity 211 of rotary drum 21,
And the upper surface of fluid bed 22 is inclined-plane, feed liquid pipe 23 is fixedly installed in the cavity 211 of rotary drum 21, and positioned at fluid bed 22
Top is arranged at intervals with nozzle 231, the output of the input terminal and dosage bunker 10 in feed proportioning system 1 of feed pump 24 on feed liquid pipe 23
End connection, the output terminal of feed pump 24 are connect with the input terminal of feed liquid pipe 23, output terminal and the 21 side wall gas of rotary drum of air blower 25
The air inlet connection of chamber.
Above-mentioned fluidized bed rotating drum prilling machine has the following advantages：
1st, fluidization air blows to material grain above fluid bed by air blower via the inner wall venthole of rotary drum side wall air cavity,
Material grain is pushed to flow to form material curtain along fluid bed inclination angle；
2nd, it is squeezed into feed liquid pipe by feed pump by the feed liquid that feed proportioning system prepares, it is multiple via being connected with feed liquid pipe
Nozzle is sprayed to material curtain；
3rd, suitable temperature and air quantity are by blower inlet Air Temperature needed for the particle condensation granulating constantly grown up in rotary drum
Degree, air quantity and air-introduced machine Boiler pressure control.
Referring to Fig. 3, in order to improve the atomizing effect of feed liquid, as the improvement of technical solution, nozzle can be carried out according to Fig. 3
Design is provided with the spout 2311 being recessed inwardly in the side wall of nozzle 231, and the lower face of spout 2311 is plane, and upper surface is
Cambered surface, by the nozzle of above-mentioned design, the spraying distribution sprayed is uniform, and hitting power is concentrated, and droplet size is moderate, feed liquid sprinkling
Uniformly.
As the improvement of technical solution, referring to Fig. 1, which can also be designed with filter 26, which connects
Between feed pump 24 and feed liquid pipe 23, the input terminal of filter 26 is connect with the output terminal of feed pump 24, filter 26 it is defeated
Outlet is connect with the input terminal of feed liquid pipe 23.
Referring to Fig. 1, fume recovery system 6 mainly by：Dedusting air-introduced machine 61, scrubbing tower 62 and the pump housing 63 form, wherein,
The input terminal of dedusting air-introduced machine 61 is connect with the flue dust output terminal of comminutor 2, output terminal and the scrubbing tower 62 of dedusting air-introduced machine 61
Gas input connection, the fluid output port of scrubbing tower 62 connect with the input terminal of the pump housing 63.
The composite heat transfer system of above-mentioned offer can not only realize the production of ternary compound fertilizer, binary compound fertilizer, but also
It can also carry out the flexible switching between composite heat transfer and urea production.
1st, it during the production of progress ternary compound fertilizer or binary compound fertilizer, needs defeated by the second of urea urine output pipe 7
Outlet and the input terminal junction of comminutor 2 are closed, and only connect out the output terminal of dosage bunker 10 with the input terminal of comminutor 2
It opens, you can.
Specifically, 1) production technology of ternary compound fertilizer is carried out, specifically, by raw material urea, monoammonium phosphate and chlorine
Change potassium according to weight ratio 15~40:4~20:4~20 carry out dispensing, and add and account in dosage bunker 10 by feed proportioning system 1
First additive of the raw material weight than 5 ‰~2% and Second addition of the raw material weight than 2%~5% is accounted for, after stirring evenly
Feed liquid；
The feed liquid is input to be granulated in comminutor 2 after, sieved by screening machine 3, obtain compound fertilizer granules, and will
The dusty gas generated in comminutor 2 is input to progress dust recycling in fume recovery system 6；
The compound fertilizer granules are transported to after being cooled down in cooler, are packed by packing machine 5, obtain finished product；
Wherein, first additive is ethers emulsified copolymer or poly- silicon class lotion；The Second addition is refined
Water.
2) carry out the production technology of binary compound fertilizer, specifically, by raw material urea and potassium chloride according to weight ratio 32~
45:4~8 carry out dispensing, and added in dosage bunker 10 and account for third of the raw material weight than 4%~10% by feed proportioning system 1
Additive and account for fourth additive of the raw material weight than 2%~5%, after stirring evenly feed liquid；
The feed liquid is input to be granulated in comminutor 2 after, sieved by screening machine 3, obtain compound fertilizer granules, and will
The dusty gas generated in comminutor 2 is input to progress dust recycling in fume recovery system 6；
The compound fertilizer granules are transported to after being cooled down in cooler, are packed by packing machine 5, obtain finished product；
Wherein, the third additive is performance improving agent, and the 4th additive is Purified Water.
When the 2nd, carrying out the production of urea, the input terminal connection closed by the output terminal of dosage bunker 10 and comminutor 2 is needed, it will
The second output terminal of urea urine output pipe 7 is opened with the input terminal junction of comminutor 2, you can.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice invention disclosed herein
Its embodiment.This application is intended to cover the present invention any variations, uses, or adaptations, these modifications, purposes or
Person's adaptive change follows the general principle of the present invention and including undocumented common knowledge in the art of the invention
Or conventional techniques.Description and embodiments are considered only as illustratively, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is only limited by appended claim.
Claims (9)
1. a kind of composite heat transfer system, which is characterized in that including：Feed proportioning system (1), comminutor (2), screening machine (3), cooling
Device (4), packing machine (5), fume recovery system (6) and urea urine output pipe (7)；
The feed proportioning system (1) includes：First disintegrator (11), the first bucket elevator (12), the first hopper (13), first are quantitatively given
Material machine (14), the second pulverizer (15), the second bucket elevator (16), the second hopper (17), the second constant feeder (18), blender
(19) and dosage bunker (10), the output terminal of the first disintegrator (11) and the input terminal of first bucket elevator (12) connect
It connects, the output terminal of first bucket elevator (12) is connect with the input terminal of first hopper (13), first hopper (13)
Output terminal connect with the first constant feeder (14) input terminal, the output terminal of second pulverizer (15) and described the
The input terminal connection of two bucket elevators (16), the output terminal of second bucket elevator (16) and the input terminal of second hopper (17)
Connection, the output terminal of second hopper (17) are connect with the second constant feeder (18) input terminal, the blender
(19) it is installed in the dosage bunker (10), and the first input end of the dosage bunker (10) and the urea urine output pipe
(7) the first output terminal connection, the second input terminal of the dosage bunker (10) respectively with first constant feeder (14)
Output terminal is connected with the output terminal of second constant feeder (18)；
The input terminal of the comminutor (2) respectively with the output terminal of dosage bunker (10) and the urea in the feed proportioning system (1)
The second output terminal connection of urine output pipe (7)；
The input terminal of the screening machine (3) is connect with the output terminal of the comminutor (2)；
The input terminal of the cooler (4) is connect with the output terminal of the screening machine (3)；
The input terminal of the packing machine (5) is connect with the output terminal of the cooler (4)；
Fume recovery system (6) input terminal is connect with the flue dust output terminal of the comminutor (2).
2. composite heat transfer system according to claim 1, which is characterized in that first constant feeder (14) and described
Second constant feeder (18) is screw fixed-weight feeder.
3. composite heat transfer system according to claim 1, which is characterized in that the comminutor (2) is made for fluidized bed drum
Grain machine.
4. composite heat transfer system according to claim 3, which is characterized in that the comminutor (2) includes：Rotary drum (21),
Fluid bed (22), feed liquid pipe (23), feed pump (24) and air blower (25)；
The rotary drum (21) is internally provided with cavity (211), and the interior of the rotary drum (21) is provided with air cavity, the air cavity
Inner wall be arranged at intervals with venthole；
The fluid bed (22) is fixedly installed in the cavity (211) of the rotary drum (21), and the upper table of the fluid bed (22)
Face is inclined-plane；
The feed liquid pipe (23) is fixedly installed in the cavity (211) of the rotary drum (21), and positioned at the fluid bed (22)
Top is arranged at intervals with nozzle (231) on the feed liquid pipe (23)；
The input terminal of the feed pump (24) is connect with the output terminal of dosage bunker (10) in the feed proportioning system (1), the feed liquid
The output terminal of pump (24) is connect with the input terminal of the feed liquid pipe (23)；
The output terminal of the air blower (25) is connect with the air inlet of the rotary drum (21) side wall air cavity.
5. composite heat transfer system according to claim 4, which is characterized in that the side wall of the nozzle (231) be provided with to
The spout (2311) of sunken inside, the lower face of the spout (2311) is plane, and upper surface is cambered surface.
6. composite heat transfer system according to claim 4, which is characterized in that the comminutor (2) further includes：Filter
(26)；
The filter (26) is series between the feed pump (24) and the feed liquid pipe (23), the filter (26) it is defeated
Enter end to connect with the output terminal of the feed pump (24), the output terminal of the filter (26) and the input of the feed liquid pipe (23)
End connection.
7. composite heat transfer system according to claim 1, which is characterized in that the fume recovery system (6) includes：Dedusting
Air-introduced machine (61), scrubbing tower (62) and the pump housing (63)；
The input terminal of the dedusting air-introduced machine (61) is connect with the flue dust output terminal of the comminutor (2), the dedusting air-introduced machine
(61) output terminal is connect with the gas input of the scrubbing tower (62)；
The fluid output port of the scrubbing tower (62) is connect with the input terminal of the pump housing (63).
8. a kind of compound fertilizer production technology, the production technology uses any one production system in claim 1~7, special
Sign is, includes the following steps：
By raw material urea, monoammonium phosphate and potassium chloride according to weight ratio 15~40:4~20:4~20 pass through feed proportioning system (1)
Dispensing is carried out, and is added in dosage bunker (10) and is accounted for first additive of the raw material weight than 5 ‰~2% and account for raw material weight ratio
2%~5% Second addition obtains feed liquid after stirring evenly；
The feed liquid is input to be granulated in comminutor (2) after, sieved by screening machine (3), obtain compound fertilizer granules, and will
The dusty gas generated in comminutor (2), which is input in fume recovery system (6), carries out dust recycling；
The compound fertilizer granules are transported to after being cooled down in cooler, are packed by packing machine (5), obtain finished product；
Wherein, first additive is ethers emulsified copolymer or poly- silicon class lotion；The Second addition is Purified Water.
9. a kind of compound fertilizer production technology, the production technology uses any one production system in claim 1~7, special
Sign is, includes the following steps：
By raw material urea and potassium chloride according to weight ratio 32~45:4~8 carry out dispensing, and in dispensing by feed proportioning system (1)
It is added in slot (10) and accounts for third additive of the raw material weight than 4%~10% and account for the 4th of raw material weight than 2%~5%
Additive obtains feed liquid after stirring evenly；
The feed liquid is input to be granulated in comminutor (2) after, sieved by screening machine (3), obtain compound fertilizer granules, and will
The dusty gas generated in comminutor (2), which is input in fume recovery system (6), carries out dust recycling；
The compound fertilizer granules are transported to after being cooled down in cooler, are packed by packing machine (5), obtain finished product；
Wherein, the third additive is performance improving agent, and the 4th additive is Purified Water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968074.8A CN108264396A (en) | 2017-10-18 | 2017-10-18 | A kind of composite heat transfer system and its production technology |
Applications Claiming Priority (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110156542A (en) * | 2019-04-30 | 2019-08-23 | 宜昌阿波罗肥业有限公司 | Compound fertilizer granulating processing unit (plant) and granulation processing method |
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Application publication date: 20180710 |